[LOGO] Tri-Continental Corporation

                        AN INVESTMENT YOU CAN LIVE WITH

                                                                     Prospectus
                                                                    May 2, 2005
                                100 Park Avenue
                              New York, NY 10017
                    New York City Telephone (212) 682-7600
                      Toll-Free Telephone (800) 874-1092
     For Retirement Plan Information -- Toll-Free Telephone (800) 445-1777

   Tri-Continental Corporation is a diversified, closed-end investment
company--a publicly traded investment fund. The Corporation's Common Stock is
traded on the New York Stock Exchange under the symbol "TY." The closing market
price of the Common Stock on March 31, 2005 was $17.80 per share.

   The Corporation invests primarily for the longer term, and over the years
the Corporation's objective has been to produce future growth of both capital
and income while providing reasonable current income. Common stocks have made
up the bulk of investments. However, assets may be held in cash or invested in
all types of securities. See "Investment Objective and Other Policies and
Related Risks." No assurance can be given that the Corporation's investment
objective will be realized. The Corporation's manager is J. & W. Seligman & Co.
Incorporated.

   This Prospectus applies to all shares of Common Stock purchased under the
Corporation's various Investment Plans. See "Investment Plans and Other
Services." The shares of Common Stock covered by this Prospectus also may be
issued from time to time by the Corporation to acquire the assets of personal
holding companies, private investment companies or publicly owned investment
companies. See "Issuance of Shares in Connection with Acquisitions."

   This Prospectus sets forth concisely the information that a prospective
investor should know about the Corporation before investing. Investors are
advised to read this Prospectus carefully and to retain it for future
reference. Additional information about the Corporation, including a Statement
of Additional Information ("SAI") dated May 2, 2005, has been filed with the
Securities and Exchange Commission. The SAI, as well as the Corporation's most
recent Annual and Semi-Annual Reports are also available upon request and
without charge by writing or calling the Corporation at the address or
telephone numbers listed above. Investors may also write or call the
Corporation in order to request other available information or to make
stockholder inquiries. The SAI is dated the same date as this Prospectus and is
incorporated herein by reference in its entirety. The table of contents of the
SAI appears on page 27 of this Prospectus. The 2004 Annual Report contains
financial statements of the Corporation for the year ended December 31, 2004,
which are incorporated by reference into the SAI. The SAI, as well as the
Corporation's most recent Annual and Semi-Annual Reports are also available at
www.tricontinental.com. The reference to the Corporation's website is an
inactive textual reference and information contained in or otherwise accessible
through the Corporation's website does not form a part of this Prospectus. The
Securities and Exchange Commission maintains a web site (www.sec.gov) that
contains the SAI, material incorporated by reference, and other information
filed electronically by the Corporation.

   THE SECURITIES AND EXCHANGE COMMISSION HAS NEITHER APPROVED NOR DISAPPROVED
THESE SECURITIES, AND IT HAS NOT DETERMINED THIS PROSPECTUS TO BE ACCURATE OR
ADEQUATE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                                                                   Common Stock
                                                               ($.50 par value)

CETRI 1 5/05







                               TABLE OF CONTENTS



                                            PAGE                                           PAGE
                                            ----                                           ----
                                                                                  
Summary of Corporation Expenses............   3  Computation of Net Asset Value...........  19
Prospectus Summary.........................   4  Dividend Policy and Taxes................  20
The Corporation............................   5  Investment Plans and Other Services......  22
Financial Highlights.......................   6  Issuance of Shares in Connection with
Capitalization at February 28, 2005........   9    Acquisitions...........................  26
Trading and Net Asset Value Information....   9  Table of Contents of the Statement of
Investment Objective and Other Policies and        Additional Information.................  27
  Related Risks............................  10  Authorization Form for Automatic Dividend
Management of the Corporation..............  13    Investment and Cash Purchase Plan......  28
Description of Capital Stock...............  18  Authorization Form for Automatic Check
Description of Warrants....................  19    Service................................  29


                        SUMMARY OF CORPORATION EXPENSES

   The following table illustrates the expenses and fees that the Corporation
expects to incur and that you can expect to bear as a stockholder of the
Corporation.


                                                                   
 STOCKHOLDER TRANSACTION EXPENSES
    Automatic Dividend Investment and Cash Purchase Plan Fees........   --/(1)/
 ANNUAL EXPENSES FOR 2004 (AS A PERCENTAGE OF NET ASSETS ATTRIBUTABLE
   TO COMMON STOCK)
    Management Fees.................................................. 0.41%
    Other Expenses/(2)/.............................................. 0.25%
                                                                      ----
        Total Annual Expenses........................................ 0.66%
                                                                      ====

--------
/(1)/ Stockholders participating in the Corporation's investment plans pay a
      maximum $2.00 fee per transaction. See "Investment Plans and Other
      Services--Automatic Dividend Investment and Cash Purchase Plan" for a
      description of the investment plans and services.
/(2)/ Based on actual expenses incurred in 2004.

   The following example illustrates the costs you would pay on a $1,000
investment, assuming a 5% annual return:



                                             1 YEAR 3 YEARS 5 YEARS 10 YEARS
                                             ------ ------- ------- --------
                                                        
    Tri-Continental Corporation Common Stock   $7     $21     $37     $82


   The purpose of the table above is to assist you in understanding the various
costs and expenses you will bear directly or indirectly. For more complete
descriptions of the various costs and expenses, see "Management of the
Corporation" and "Investment Plans and Other Services--Automatic Dividend
Investment and Cash Purchase Plan."

   The example does not represent actual costs, which may be more or less than
those shown. Moreover, the Corporation's actual rate of return may be more or
less than the hypothetical 5% return shown in the example.

                                      3



                              PROSPECTUS SUMMARY

   The following is qualified in its entirety by the more detailed information
included elsewhere in this Prospectus.

   This Prospectus applies to shares of Common Stock of the Corporation. The
Corporation invests primarily for the longer term and has no Charter
restrictions with respect to such investments. Over the years the Corporation's
objective has been to produce future growth of both capital and income while
providing reasonable current income. There can be no assurance that this
objective will be achieved. While common stocks have made up the bulk of
investments, assets may be held in cash or invested in all types of securities
in whatever amounts or proportions J. & W. Seligman & Co. Incorporated (the
"Manager") believes best suited to current and anticipated economic and market
conditions. These may include preferred stock, debt securities, repurchase
agreements, options, illiquid securities and securities of foreign issuers,
each of which could involve certain risks. See "Investment Objective and Other
Policies and Related Risks."

   The Manager manages the investment of the assets of the Corporation and
administers its business and other affairs pursuant to a Management Agreement
approved by the Board of Directors and the stockholders of the Corporation. The
Manager also serves as manager of twenty-two other U.S. registered investment
companies which, together with the Corporation, make up the "Seligman Group of
Funds." The aggregate assets of the Seligman Group of Funds at February 28,
2005 were approximately $12.0 billion. The Manager also provides investment
management or advice to institutional and other accounts having a value at
February 28, 2005 of approximately $8.8 billion. The Manager's fee is based in
part on the average daily net assets of the Corporation. The management fee
rate for 2004 was equivalent to 0.41% of the Corporation's average daily net
investment assets. See "Management of the Corporation."

   Shares of Common Stock covered by this Prospectus may be purchased from time
to time by Seligman Data Corp. ("SDC"), the Plan service agent for Automatic
Dividend Investment and Cash Purchase Plans, Individual Retirement Accounts
("IRAs"), Retirement Plans for Self-Employed Individuals, Partnerships and
Corporations, the J. & W. Seligman & Co. Incorporated Matched Accumulation Plan
and the Seligman Data Corp. Employees' Thrift Plan (collectively, the "Plans"),
as directed by participants, and may be sold from time to time by the Plan
service agent for participants in Systematic Withdrawal Plans. See "Investment
Plans and Other Services." Shares will be purchased for the Plans on the New
York Stock Exchange or elsewhere when the market price of the Common Stock is
equal to or less than its net asset value, and any brokerage commissions
applicable to such purchases will be charged pro rata to the Plan participants.
Shares will be purchased for the Plans from the Corporation at net asset value
when the net asset value is lower than the market price, all as more fully
described in this Prospectus.

   On November 18, 2004, the Board of Directors authorized the renewal of the
Corporation's ongoing share repurchase plan. The program authorizes the
Corporation to repurchase through December 31, 2005 up to 5.6% of its then
outstanding Common Stock, provided that the excess of net asset value of a
share of Common Stock over its market price (the discount) remains greater than
10%. The shares repurchased under this program are cancelled increasing the
number of authorized but unissued shares available for issuance to participants
in the Plan. The stock repurchase program seeks, among other things, to
moderate the growth in the number of shares outstanding, increase the net asset
value of the Corporation's outstanding shares, reduce the dilutive impact on
stockholders who do not take capital gains distributions in additional shares
and increase the liquidity of the

                                      4



Corporation's Common Stock in the marketplace. Shares acquired by the
Corporation from participants in the Systematic Withdrawal Plan and other
stockholder plans, as well as shares purchased for the Corporation in the open
market to meet demand under the Automatic Dividend and Cash Purchase Plan, are
counted towards the repurchase limit under the program. For the 12-month period
ended November 18, 2004, the Corporation repurchased 5.9 million shares,
equivalent to 5.0% of the outstanding stock at November 20, 2003.

                                THE CORPORATION

   The Corporation is a Maryland corporation formed in 1929 by the
consolidation of two predecessor corporations. It is registered under the
Investment Company Act of 1940, as amended (the "1940 Act"), as a diversified
management investment company of the closed-end type. The Corporation's Common
Stock is listed on the New York Stock Exchange under the symbol "TY." The
average weekly trading volume on that and other exchanges during 2004 was
400,752 shares. The Corporation's Common Stock has historically been traded on
the market at less than net asset value. As of February 28, 2005, the
Corporation had 112,307,966 shares of Common Stock outstanding and net assets
attributable to Common Stock of $2,413,780,344.

                                      5



                             FINANCIAL HIGHLIGHTS

   The Corporation's financial highlights for the years presented below have
been audited by Deloitte & Touche LLP, Independent Registered Public Accounting
Firm. This information, which is derived from the financial and accounting
records of the Corporation, should be read in conjunction with the financial
statements and notes contained in the Corporation's 2004 Annual Report, which
may be obtained from the Corporation as provided on the cover page of this
Prospectus.

   "Per share operating performance" data is designed to allow you to trace the
operating performance, on a per Common share basis, from the beginning net
asset value to the ending net asset value so that you can understand what
effect the individual items have on your investment, assuming it was held
throughout the year. Generally, the per share amounts are derived by converting
the actual dollar amounts incurred for each item, as disclosed in the financial
statements, to their equivalent per Common share amount, using average shares
outstanding.
                                         PER SHARE OPERATING PERFORMANCE, TOTAL
                                                   (FOR A SHARE OF COMMON STOCK



                                                                           ----------------------------------
                                                                              2004        2003        2002
                                                                           ----------  ----------  ----------
                                                                                          
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of year........................................ $    19.55  $    15.72  $    21.69
                                                                           ----------  ----------  ----------
Net investment income.....................................................       0.26        0.18        0.25
Net realized and unrealized investment gain (loss)........................       2.31        3.84       (5.95)
Net realized and unrealized gain (loss) from foreign currency transactions         --          --          --
                                                                           ----------  ----------  ----------
Increase (decrease) from investment operations............................       2.57        4.02       (5.70)
Dividends paid on Preferred Stock.........................................      (0.02)      (0.02)      (0.01)
Dividends paid on Common Stock............................................      (0.23)      (0.17)      (0.26)
Distribution from net gain realized.......................................         --          --          --
Issuance of Common Stock in gain distributions............................         --          --          --
Issuance of Common Stock upon Warrant exercise**..........................         --          --          --
                                                                           ----------  ----------  ----------
Net increase (decrease) in net asset value................................       2.32        3.83       (5.97)
                                                                           ----------  ----------  ----------
Net asset value, end of year.............................................. $    21.87  $    19.55  $    15.72
                                                                           ==========  ==========  ==========
Adjusted net asset value, end of year*.................................... $    21.82  $    19.51  $    15.69
Market value, end of year................................................. $    18.28  $    16.40  $    13.25
TOTAL INVESTMENT RETURN:
Based upon market value...................................................     12.95%      25.24%    (28.18)%
Based upon net asset value................................................     13.36%#     25.84%    (26.35)%
RATIOS AND SUPPLEMENTAL DATA:
Expenses to average net investment assets.................................      0.65%       0.68%       0.67%
Expenses to average net assets for Common Stock...........................      0.66%       0.70%       0.68%
Net investment income to average net investment assets....................      1.26%       1.03%       1.29%
Net investment income to average net assets for
 Common Stock.............................................................      1.28%       1.05%       1.31%
Portfolio turnover rate...................................................     47.36%     138.65%     152.79%
Net investment assets, end of year (000s omitted):
  For Common Stock........................................................ $2,470,781  $2,310,999  $1,958,295
  For Preferred Stock.....................................................     37,637      37,637      37,637
                                                                           ----------  ----------  ----------
Total net investment assets............................................... $2,508,418  $2,348,636  $1,995,932
                                                                           ==========  ==========  ==========

--------
*  Assumes the exercise of outstanding warrants. Warrant exercise terms were:
   December 22, 1994 to December 27, 1995--12.77 shares at $1.76 per share;
   December 28, 1995 to July 1, 1996--13.54 shares at $1.66 per share; July 2,
   1996 to December 20, 1996--13.79 shares at $1.63 per share; December 21,
   1996 to July 1, 1997--14.69 shares at $1.53 per share; July 2,1997 to
   December 19, 1997--14.99 shares at $1.50 per share; December 20, 1997 to
   June 23, 1998--16.06 shares at $1.40 per share; June 24, 1998 to December
   18, 1998--16.78 shares at $1.34 per share; December 19, 1998 to June 24,
   1999--17.85 shares at $1.26 per share; June 25, 1999 to December 16,
   1999--18.14 shares at $1.24 per share;

                                      6



   The total investment return based on market value measures the Corporation's
performance assuming you purchased shares of the Corporation at the market
value as of the beginning of the year, invested dividends and capital gains
paid as provided for in the Corporation's Automatic Dividend Investment and
Cash Purchase Plan, and then sold your shares at the closing market value per
share on the last day of the year. The computation does not reflect any sales
commissions you may incur in purchasing or selling shares of the Corporation.
The total investment return based on net asset value is similarly computed
except that the Corporation's net asset value is substituted for the
corresponding market value.


INVESTMENT RETURN, RATIOS AND SUPPLEMENTAL DATA
OUTSTANDING THROUGHOUT EACH YEAR)

YEAR ENDED DECEMBER 31,
--------------------------------------------------------------------------------


   2001        2000        1999        1998        1997        1996        1995
----------  ----------  ----------  ----------  ----------  ----------  ----------
                                                      
$    25.87  $    32.82  $    34.13  $    32.06  $    29.28  $    27.58  $    23.70
----------  ----------  ----------  ----------  ----------  ----------  ----------
      0.32        0.35        0.48        0.54        0.60        0.68        0.74
     (3.02)      (3.25)       2.90        7.01        6.94        4.84        6.14
        --          --          --       (0.01)      (0.17)      (0.02)       0.03
----------  ----------  ----------  ----------  ----------  ----------  ----------
     (2.70)      (2.90)       3.38        7.54        7.37        5.50        6.91
     (0.01)      (0.02)      (0.02)      (0.02)      (0.02)      (0.02)      (0.02)
     (0.28)      (0.33)      (0.48)      (0.52)      (0.60)      (0.66)      (0.73)
     (1.11)      (3.30)      (3.79)      (4.28)      (3.45)      (2.72)      (2.01)
     (0.08)      (0.40)      (0.40)      (0.65)      (0.52)      (0.40)      (0.27)
        --          --          --          --          --          --          --
----------  ----------  ----------  ----------  ----------  ----------  ----------
     (4.18)      (6.95)      (1.31)       2.07        2.78        1.70        3.88
----------  ----------  ----------  ----------  ----------  ----------  ----------
$    21.69  $    25.87  $    32.82  $    34.13  $    32.06  $    29.28  $    27.58
==========  ==========  ==========  ==========  ==========  ==========  ==========
$    21.65  $    25.82  $    32.75  $    34.06  $    31.99  $    29.22  $    27.52
$    18.75  $  21.1875  $   27.875  $    28.50  $  26.6875  $   24.125  $   22.625
   (5.22)%    (11.56)%      12.57%      26.19%      27.96%      21.98%      27.95%
  (10.20)%     (8.29)%      10.67%      25.80%      26.65%      21.45%      30.80%
     0.59%       0.54%       0.56%       0.58%       0.60%       0.62%       0.63%
     0.60%       0.54%       0.56%       0.58%       0.60%       0.63%       0.64%
     1.36%       1.10%       1.36%       1.59%       1.80%       2.27%       2.71%

     1.37%       1.11%       1.38%       1.60%       1.82%       2.31%       2.75%
   124.34%      54.13%      42.83%      63.39%      83.98%      53.96%      62.28%
$2,873,655  $3,458,009  $4,109,863  $4,002,516  $3,391,816  $2,835,026  $2,469,149
    37,637      37,637      37,637      37,637      37,637      37,637      37,637
----------  ----------  ----------  ----------  ----------  ----------  ----------
$2,911,292  $3,495,646  $4,147,500  $4,040,153  $3,429,453  $2,872,663  $2,506,786
==========  ==========  ==========  ==========  ==========  ==========  ==========


  December 17, 1999 to June 21, 2000--19.56 shares at $1.15 per share; June 22,
  2000 to December 17, 2000--19.90 shares at $1.13 per share; December 18, 2000
  to December 17, 2001--21.63 shares at $1.04 per share; and subsequently,
  22.50 shares at $1.00 per share.
**Per share amount is less than + or - $0.01.
# Excluding the effect of the payments received from the Manager, the total
  return would have been 13.33%.

                                      7



SENIOR SECURITIES -- $2.50 CUMULATIVE PREFERRED STOCK

   The following information is being presented with respect to the
Corporation's $2.50 Cumulative Preferred Stock. The first column presents the
number of Preferred shares outstanding at the end of each of the periods
presented. Asset Coverage represents the total amount of net assets of the
Corporation in relation to each share of Preferred Stock outstanding as of the
end of the respective periods. The involuntary liquidation preference is the
amount each share of Cumulative Preferred Stock would be entitled to upon
involuntary liquidation of these shares.



                               YEAR-END  INVOLUNTARY AVERAGE DAILY
                                 ASSET   LIQUIDATION    MARKET
                  TOTAL SHARES COVERAGE  PREFERENCE      VALUE
             YEAR OUTSTANDING  PER SHARE  PER SHARE    PER SHARE
             ---- ------------ --------- ----------- -------------
                                         
             2004   752,740     $3,332       $50        $45.40
             2003   752,740      3,120        50         44.16
             2002   752,740      2,654        50         40.61
             2001   752,740      3,868        50         37.57
             2000   752,740      4,644        50         34.72
             1999   752,740      5,510        50         37.31
             1998   752,740      5,367        50         40.27
             1997   752,740      4,556        50         35.62
             1996   752,740      3,816        50         34.28
             1995   752,740      3,330        50         33.37


                                      8



                      CAPITALIZATION AT FEBRUARY 28, 2005



                                                                   AMOUNT HELD
                                                                  BY REGISTRANT
                                                                   OR FOR ITS
          TITLE OF CLASS              AUTHORIZED     OUTSTANDING     ACCOUNT
          --------------              ----------     -----------  -------------
                                                         
 $2.50 Cumulative Preferred Stock,
   $50 par value..................    1,000,000 shs. 752,740 shs.   -0- shs.
 Common Stock,
   $0.50 par value................ 159,000,000 shs.*  112,307,966   -0- shs.
 Warrants to purchase
   Common Stock...................       12,822 wts.  12,822 wts.   -0- wts.

--------
*  288,495 shares of Common Stock were reserved for issuance upon the exercise
  of outstanding Warrants.

                    TRADING AND NET ASSET VALUE INFORMATION

   The following table shows the high and low sale prices of the Corporation's
Common Stock on the composite tape for issues listed on the New York Stock
Exchange for each calendar quarter since the beginning of 2003 as well as the
net asset values and the range of the percentage discounts to net asset value
per share that correspond to such prices.


                                         

                                                    CORRESPONDING
                                  CORRESPONDING      DISCOUNT TO
                    MARKET PRICE  NET ASSET VALUE  NET ASSET VALUE
              -     ------------- --------------- ---------------
              2003   HIGH   LOW    HIGH    LOW      HIGH     LOW
              ----  ------ ------ ------  ------  ------   ------
              1st Q $14.11 $12.27 $16.60  $14.32  (15.00)% (14.32)%
              2nd Q  15.23  12.93  17.75   15.19  (14.20)  (14.88)
              3rd Q  15.64  14.54  18.37   16.90  (14.86)  (13.96)
              4th Q  16.40  15.21  19.55   17.90  (16.11)  (15.03)

              2004
              ----
              1st Q  17.69  16.40  20.56   19.52  (13.96)  (15.98)
              2nd Q  17.45  16.00  20.41   19.28  (14.50)  (17.01)
              3rd Q  16.79  15.82  20.14   19.03  (16.63)  (16.87)
              4th Q  18.31  16.39  21.89   19.69  (16.35)  (16.76)

              2005
              ----
              1st Q  18.38  17.49  21.91   20.85  (16.11)  (16.12)


   The Corporation's Common Stock has historically been traded on the market at
less than net asset value. The closing market price, net asset value and
percentage discount to net asset value per share of the Corporation's Common
Stock on March 31, 2005 were $17.80, $21.10 and 15.64%, respectively.

                                      9



           INVESTMENT OBJECTIVE AND OTHER POLICIES AND RELATED RISKS

   The Corporation is a Maryland corporation formed in 1929 by the
consolidation of two predecessor corporations. It is registered under the 1940
Act, as a diversified management investment company of the closed-end type.

   The Corporation invests primarily for the longer term and has no Charter
restrictions with respect to such investments. Over the years, the
Corporation's investment objective has been to produce future growth of both
capital and income while providing reasonable current income. There can be no
assurance that this objective will be achieved. While common stocks have made
up the bulk of investments, assets may be held in cash or invested in all types
of securities, that is, in bonds, debentures, notes, preferred and common
stocks, rights and warrants (subject to limitations as set forth in the SAI),
and other securities, in whatever amounts or proportions the Manager believes
best suited to current and anticipated economic and market conditions.

   The management's present investment policies, in respect to which it has
freedom of action, are:

      (1) it keeps investments in individual issuers within the limits
   permitted diversified companies under the 1940 Act (i.e., 75% of its total
   assets must be represented by cash items, government securities, securities
   of other investment companies, and securities of other issuers which, at the
   time of investment, do not exceed 5% of the Corporation's total assets at
   market value in the securities of any issuer and do not exceed 10% of the
   voting securities of any issuer);
      (2) it does not make investments with a view to exercising control or
   management except that it has an investment in SDC;

      (3) it ordinarily does not invest in other investment companies, but it
   may purchase up to 3% of the voting securities of such investment companies,
   provided purchases of securities of a single investment company do not
   exceed in value 5% of the total assets of the Corporation and all
   investments in investment company securities do not exceed 10% of total
   assets; and

      (4) it has no fixed policy with respect to portfolio turnover and
   purchases and sales in the light of economic, market and investment
   considerations. The portfolio turnover rates for the ten fiscal years ended
   December 31, 2004 are shown under "Financial Highlights."

The foregoing investment objective and policies may be changed by management
without stockholder approval, unless such a change would change the
Corporation's status from a "diversified" to a "non-diversified" company under
the 1940 Act.

   The Corporation's stated fundamental policies relating to the issuance of
senior securities, the borrowing of money, the underwriting of securities of
other issuers, the concentration of investments in a particular industry or
groups of industries, the purchase or sale of real estate, the purchase or sale
of commodities or commodity contracts, and the making of loans may not be
changed without a vote of stockholders. A more detailed description of the
Corporation's investment policies, including a list of those restrictions on
the Corporation's investment activities which cannot be changed without such a
vote, appears in the SAI. Within the limits of these fundamental policies,
management has reserved freedom of action.

   REPURCHASE AGREEMENTS: The Corporation may enter into repurchase agreements
with respect to debt obligations which could otherwise be purchased by the
Corporation. A repurchase agreement is an instrument

                                      10



under which the Corporation may acquire an underlying debt instrument and
simultaneously obtain the commitment of the seller (a commercial bank or a
broker or dealer) to repurchase the security at an agreed upon price and date
within a number of days (usually not more than seven days from the date of
purchase). The value of the underlying securities will be at least equal at all
times to the total amount of the repurchase obligation, including the interest
factor. The Corporation will make payment for such securities only upon
physical delivery or evidence of book transfer to the account of the
Corporation's custodian. Repurchase agreements could involve certain risks in
the event of default or insolvency of the other party, including possible
delays or restrictions upon the Corporation's ability to dispose of the
underlying securities.

   ILLIQUID SECURITIES: The Corporation may invest up to 15% of its net
investment assets in illiquid securities, including restricted securities
(i.e., securities not readily marketable without registration under the
Securities Act of 1933, as amended (the "1933 Act")) and other securities that
are not readily marketable. The Corporation may purchase restricted securities
that can be offered and sold to "qualified institutional buyers" under Rule
144A of the 1933 Act, and the Corporation's Board of Directors may determine,
when appropriate, that specific Rule 144A securities are liquid and not subject
to the 15% limitation on illiquid securities. Should this determination be
made, the Board of Directors will carefully monitor the security (focusing on
such factors, among others, as trading activity and availability of
information) to determine that the Rule 144A security continues to be liquid.
This investment practice could have the effect of increasing the level of
illiquidity in the Corporation, if and to the extent that qualified
institutional buyers become for a time uninterested in purchasing Rule 144A
securities.

   FOREIGN SECURITIES: The Corporation may invest in commercial paper and
certificates of deposit issued by foreign banks and may invest in other
securities of foreign issuers directly or through American Depositary Receipts
("ADRs"), American Depositary Shares ("ADSs"), European Depositary Receipts
("EDRs") or Global Depositary Receipts ("GDRs") (collectively, "Depositary
Receipts"). Foreign investments may be affected favorably or unfavorably by
changes in currency rates and exchange control regulations. There may be less
information available about a foreign company than about a U.S. company and
foreign companies may not be subject to reporting standards and requirements
comparable to those applicable to U.S. companies. Foreign securities may not be
as liquid as U.S. securities. Securities of foreign companies may involve
greater market risk than securities of U.S. companies, and foreign brokerage
commissions and custody fees are generally higher than those in the United
States. Investments in foreign securities may also be subject to local economic
or political risks, political instability and possible nationalization of
issuers. ADRs and ADSs are instruments generally issued by domestic banks or
trust companies that represent the deposits of a security of a foreign issuer.
ADRs and ADSs may be publicly traded on exchanges or over-the-counter in the
United States and are quoted and settled in dollars at a price that generally
reflects the dollar equivalent of the home country share price. EDRs and GDRs
are typically issued by foreign banks or trust companies and traded in Europe.
Depositary Receipts may be issued under sponsored or unsponsored programs. In
sponsored programs, the issuer has made arrangements to have its securities
traded in the form of a Depositary Receipt. In unsponsored programs, the
issuers may not be directly involved in the creation of the program. Although
regulatory requirements with respect to sponsored and unsponsored programs are
generally similar, the issuers of securities represented by unsponsored
Depositary Receipts are not obligated to disclose material information in the
United States and, therefore, the import of such information may not be
reflected in the market value of such receipts. The Corporation may invest up
to 10% of its total assets in foreign securities that it holds directly, but
this 10% limit does not apply to foreign securities held through Depositary
Receipts or to commercial paper and certificates of deposit issued by foreign
banks.

   LEVERAGE: Senior securities issued or money borrowed to raise funds for
investment have a prior fixed dollar claim on the Corporation's assets and
income. Any gain in the value of securities purchased or in income

                                      11



received in excess of the cost of the amount borrowed or interest or dividends
payable causes the net asset value of the Corporation's Common Stock or the
income available to it to increase more than otherwise would be the case.
Conversely, any decline in the value of securities purchased or income received
on them to below the asset or income claims of the senior securities or
borrowed money causes the net asset value of the Common Stock or income
available to it to decline more sharply than would be the case if there were no
prior claim. Funds obtained through senior securities or borrowings thus create
investment opportunity, but they also increase exposure to risk. This influence
ordinarily is called "leverage." As of February 28, 2005, the only senior
securities of the Corporation outstanding were 752,740 shares of its $2.50
Cumulative Preferred Stock, $50 par value. The quarterly dividend rate as of
February 28, 2005 on such preferred stock was $2.50 per annum. Based on its
February 28, 2005 asset value, the Corporation's portfolio requires an annual
return of 0.08% in order to cover dividend payments on the Preferred Stock. For
a description of such payments, see "Description of Capital Stock." The
following table illustrates the effect of leverage relating to presently
outstanding Preferred Stock on the return available to a holder of the
Corporation's Common Stock.


                                                         
 Assumed return on portfolio
   (net of expenses).......................    -10%    -5%     0%    5%    10%
 Corresponding return to common stockholder -10.23% -5.16% -0.08% 5.00% 10.08%


   The purpose of the table above is to assist you in understanding the effects
of leverage. The percentages appearing in the table do not represent actual or
anticipated returns, which may be greater or less than those shown.

   OTHER RISKS: Stock prices fluctuate. Therefore, as with any fund that
invests in stocks, the Corporation's net asset value and market price will
fluctuate, especially in the short term. You may experience a decline in the
value of your investment and you could lose money if you sell your shares at a
price lower than you paid for them.

   The Corporation may not invest 25% or more of its total assets in securities
of companies in any one industry. The Corporation may, however, invest a
substantial percentage of its assets in certain industries or economic sectors
believed to offer good investment opportunities. If an industry or economic
sector in which the Corporation is invested falls out of favor, the
Corporation's performance may be negatively affected.

   The Corporation's performance may be affected by the broad investment
environment in the U.S. or international securities markets, which is
influenced by, among other things, interest rates, inflation, politics, fiscal
policy, and current events.

   Foreign securities or illiquid securities in the Corporation's portfolio
involve higher risk and may subject the Corporation to higher price volatility.
Investing in securities of foreign issuers involves risks not associated with
U.S. investments, including settlement risks, currency fluctuations, local
withholding and other taxes, different financial reporting practices and
regulatory standards, high costs of trading, changes in political conditions,
expropriation, investment and repatriation restrictions, and settlement and
custody risks.

   An investment in the Corporation is not a deposit in a bank and is not
insured or guaranteed by the Federal Deposit Insurance Corporation or any other
government agency.

                                      12



                         MANAGEMENT OF THE CORPORATION

   THE MANAGER: In accordance with the applicable laws of the State of
Maryland, the Board of Directors provides broad supervision over the affairs of
the Corporation. Pursuant to a Management Agreement approved by the Board and
the stockholders, the Manager manages the investment of the assets of the
Corporation and administers its business and other affairs. In that connection,
the Manager makes purchases and sales of portfolio securities consistent with
the Corporation's investment objective and policies.

   The Manager also serves as manager of twenty-two other U.S. registered
investment companies of the Seligman Group of Funds. These other companies are:
Seligman Capital Fund, Inc., Seligman Cash Management Fund, Inc., Seligman
Common Stock Fund, Inc., Seligman Communications and Information Fund, Inc.,
Seligman Frontier Fund, Inc., Seligman Growth Fund, Inc., Seligman Global Fund
Series, Inc., Seligman High Income Fund Series, Seligman Income and Growth
Fund, Inc., Seligman Investment Grade Fixed Income Fund, Inc., Seligman LaSalle
Real State Fund Series, Inc. Seligman Municipal Fund Series, Inc., Seligman
Municipal Series Trust, Seligman New Jersey Municipal Fund, Inc., Seligman New
Technologies Fund, Inc., Seligman New Technologies Fund II, Inc., Seligman
Pennsylvania Municipal Fund Series, Seligman Portfolios, Inc., Seligman Quality
Municipal Fund, Inc., Seligman Select Municipal Fund, Inc., Seligman Time
Horizon/Harvester Series, Inc. and Seligman Value Fund Series, Inc. The address
of the Manager is 100 Park Avenue, New York, NY 10017. Mr. William C. Morris,
Chairman of the Manager and Chairman of the Board of Directors and owns a
majority of the outstanding voting securities of the Manager and is a
controlling person of the Manager.

   As compensation for the services performed and the facilities and personnel
provided by the Manager, the Corporation pays to the Manager promptly after the
end of each month a fee, calculated on each day during such month, equal to the
Applicable Percentage of the daily net assets of the Corporation at the close
of business on the previous business day. The term "Applicable Percentage"
means the amount (expressed as a percentage and rounded to the nearest one
millionth of one percent) obtained by dividing (i) the Fee Amount by (ii) the
Fee Base. The term "Fee Amount" means the sum on an annual basis of:

                        0.45 of 1% of the first $4 billion of Fee Base
                        0.425 of 1% of the next $2 billion of Fee Base
                        0.40 of 1% of the next $2 billion of Fee Base, and
                        0.375 of 1% of the Fee Base in excess of $8 billion.

The term "Fee Base" as of any day means the sum of the net assets at the close
of business on the previous day of each of the investment companies registered
under the 1940 Act for which the Manager or any affiliated company acts as
investment adviser or manager (including the Corporation).

   The Corporation's portfolio is managed by the Manager's Core Investment
Team, headed by Mr. John B. Cunningham, Managing Director and Chief Investment
Officer of the Manager. Mr. Cunningham is Vice President and Portfolio Manager
of the Corporation. He is also Vice President and Portfolio Manager of Seligman
Common Stock Fund, Inc., Vice President and Co-Portfolio Manager of Seligman
Income and Growth Fund, Inc., and Vice President of Seligman Portfolios, Inc.
and Portfolio Manager of its Seligman Common Stock Portfolio and Co-Portfolio
Manager of Seligman Income and Growth Portfolio. Prior to joining the Manager,
Mr. Cunningham was, beginning in 2001, a Managing Director, Senior Portfolio
Manager of Salomon Brothers Asset Management ("SBAM") and Group Head of SBAM's
Equity Team. Prior to 2001, he was a Director, Portfolio Manager of SBAM.

                                      13



   Mr. Michael F. McGarry, a Managing Director of the Manager, is Vice
President and Co-Portfolio Manager of the Corporation. He is also Vice
President and Co-Portfolio Manager of Seligman Common Stock Fund, Inc. and Vice
President of Seligman Portfolios, Inc. and Co-Portfolio Manager of its Seligman
Common Stock Portfolio. Mr. McGarry joined the Manager in August 1990 as an
Institutional Portfolio Administrator and has been a member of the team
managing the Corporation since October 2001.

   Mr. Cunningham and Mr. McGarry each have decision-making authority with
respect to the Corporation's investments, although, as team leader of the Core
Investment Team, Mr. Cunningham typically makes the final decisions with
respect to the investments made by the Corporation.

   The Corporation's SAI provides additional information about the Portfolio
Managers' compensation, other accounts managed by the Portfolio Managers and
the Portfolio Managers' ownership of the securities of the Corporation.

   The Corporation pays all its expenses other than those assumed by the
Manager, including brokerage commissions, fees and expenses of independent
attorneys and auditors, taxes and governmental fees, cost of stock
certificates, expenses of printing and distributing prospectuses, expenses of
printing and distributing reports, notices and proxy materials to stockholders,
expenses of printing and filing reports and other documents with governmental
agencies, expenses of stockholders' meetings, expenses of corporate data
processing and related services, stockholder record-keeping and stockholder
account services, fees and disbursements of transfer agents and custodians,
expenses of disbursing dividends and distributions, fees and expenses of
directors of the Corporation not employed by the Manager or its affiliates,
insurance premiums and extraordinary expenses such as litigation expenses.

   The Management Agreement provides that it will continue in effect until
December 29 of each year if such continuance is approved in the manner required
by the 1940 Act (i.e., by a vote of a majority of the Board of Directors or of
the outstanding voting securities of the Corporation and by a vote of a
majority of Directors who are not parties to the Management Agreement or
interested persons of any such party) and if the Manager shall not have
notified the Corporation at least 60 days prior to December 29 of any year that
it does not desire such continuance. The Management Agreement may be terminated
by the Corporation, without penalty, on 60 days' written notice to the Manager
and will terminate automatically in the event of its assignment.

   CUSTODIAN. State Street Bank and Trust Company serves as custodian for the
Corporation's portfolio securities and is located at 801 Pennsylvania Avenue,
Kansas City, Missouri 64105.

   STOCKHOLDER SERVICE AGENT. Seligman Data Corp. serves as stockholder service
agent to the Corporation and is located at 100 Park Avenue, New York, New York
10017.

                                      14



FREQUENTLY ASKED QUESTIONS ABOUT REGULATORY MATTERS

   In response to recent developments regarding disruptive and illegal trading
practices in the mutual fund industry, the following discussion has been
prepared to provide shareholders with important information.

   For purposes of this discussion, J. & W. Seligman & Co. Incorporated and its
affiliates and related parties are referred to as "Seligman" or the "Manager,"
and the Seligman registered investment companies are referred to as the
"Seligman Funds."

Q1.  HAVE ANY SELIGMAN EMPLOYEES ENGAGED IN IMPROPER TRADING?

A.   The Manager has conducted an internal review of employee trading in shares
     of the Seligman Funds and has not found improper trading activity by
     Seligman employees.

Q2.  DOES SELIGMAN HAVE ANY POLICIES RELATING TO EMPLOYEE INVESTMENT IN THE
     SELIGMAN FUNDS?

A.   A majority of Seligman employees invest in the Seligman Funds, either
     directly or through the Seligman 401(k) plans. Trading by employees is
     monitored by the Manager's legal department and is subject to the
     Manager's Code of Ethics. In addition, unlike many 401(k) plans that
     permit daily trading, the Seligman 401(k) plans permit only weekly trading
     activity. All Seligman employees have been informed that excessive trading
     with respect to the Seligman Funds, or trading in the Seligman Funds based
     upon inside information, is inappropriate and may, in certain cases, be
     illegal. Employees who engage in inappropriate trading will be subject to
     disciplinary action, which may include termination of employment.

Q3.  HAS SELIGMAN ENGAGED IN IMPROPER DISCLOSURE OF A FUND'S PORTFOLIO HOLDINGS?

A.   The Manager has found no improprieties relating to the disclosure of a
     Fund's portfolio holdings. The Manager has not disclosed and does not
     disclose a Fund's portfolio holdings prior to public dissemination, unless
     such disclosure is made for legitimate business purposes and only if the
     Manager believes that such disclosure will not be detrimental to a Fund's
     interest.

Q4.  WHAT IS SELIGMAN'S POLICY WITH REGARD TO RECEIPT OF LATE TRADES (I.E.,
     AFTER 4:00 PM EASTERN TIME)?

A.   Seligman does not accept late trades directly from Fund shareholders or
     prospective shareholders. The large majority of mutual fund trades
     submitted to Seligman are from broker-dealer firms and other financial
     intermediaries on behalf of their clients. These intermediaries have an
     obligation to ensure that trades submitted to the Seligman Funds after
     4:00 pm on a trading day for that day's net asset value were, in fact,
     received by those entities by 4:00 pm on that day. This applies to all
     trades from intermediaries, including those that are transmitted
     electronically to Seligman after the market closes. Although the Seligman
     Funds and the Manager, like other mutual fund groups, cannot determine the
     time at which orders received through financial intermediaries were
     placed, the Manager expects mutual fund trades submitted to Seligman by
     financial intermediaries to comply with all applicable laws and
     regulations. Seligman has contacted every financial intermediary that
     offers, sells, or purchases shares of the Seligman Funds in order to
     remind all of them of their responsibility to have reasonable policies and
     procedures to ensure that they comply with their legal and contractual
     obligations.

     The Manager has found no instances of Fund shareholders engaging in late
     trading directly with the Seligman Funds. Seligman will cooperate with and
     support any governmental or regulatory investigation

                                      15



     to identify and hold accountable any financial intermediary that has
     submitted orders in violation of applicable laws or regulations.

Q5.  WHAT IS SELIGMAN'S POLICY REGARDING MARKET TIMING?

A.   Seligman has policies and procedures in place to restrict trades that, in
     its judgment, could prove disruptive in the management of portfolios of
     the Seligman Funds. As part of the Manager's procedures, the Manager
     frequently rejects trades, issues warning letters, and prohibits accounts
     from making further exchanges. Since September 2003, when the first
     proceedings relating to trading practices within the mutual fund industry
     were publicly announced, Seligman has taken additional steps to strengthen
     its policies and procedures.

Q6.  HAS SELIGMAN CONDUCTED AN INTERNAL REVIEW RELATING TO MARKET TIMING?

A.   The Manager has completed its internal review. As of September 2003, the
     Manager had one arrangement that permitted frequent trading. This
     arrangement was in the process of being closed down by the Manager before
     the first proceedings relating to trading practices within the mutual fund
     industry were publicly announced. Based on a review of the Manager's
     records for 2001 through 2003, the Manager identified three other
     arrangements that had permitted frequent trading in the Seligman Funds.
     All three had already been terminated prior to the end of September 2002.

     The results of the Manager's internal review were presented to the
     Independent Directors of the Seligman Funds. In order to resolve matters
     with the Independent Directors relating to the four arrangements, the
     Manager has paid approximately $75,000 to Seligman Global Growth Fund,
     $300,000 to Seligman Global Smaller Companies Fund and $1.6 million to
     Seligman Global Technology Fund in recognition that these global
     investment funds presented some potential for time zone arbitrage. The
     amounts paid by the Manager represented less than 1/2 of 1% of each such
     Fund's net asset value as of the date such payments were made. In
     addition, with respect to Seligman Communications and Information Fund and
     notwithstanding that time zone arbitrage opportunities did not exist, the
     Manager, at the request of the Independent Directors, has agreed to waive
     a portion of its management fee, amounting to five basis points (0.05%)
     per annum, for that Fund for a period of two years commencing on June 1,
     2004.

Q7.  DOES SELIGMAN DISCLOSE ITS INTERNAL MARKET TIMING CONTROL PROCEDURES?

A.   Seligman's market timing control procedures are proprietary. The Manager
     believes that disclosing these procedures will reduce their effectiveness.

Q8.  WHAT NEW PRACTICES ARE BEING CONSIDERED TO PREVENT MARKET TIMING ABUSES?

A.   Like other members of the mutual fund industry, Seligman is considering
     numerous options, including the implementation of redemption fees.
     Seligman also has contacted every financial intermediary that offers,
     sells, or purchases shares of the Seligman Funds in order to inform all of
     them that they must have reasonable policies and procedures to ensure that
     they do not knowingly permit or facilitate excessive trading of the
     Seligman Funds or knowingly use or facilitate any methods designed to
     disguise such trading in the Seligman Funds.

                                      16



Q9.  IS SELIGMAN INVOLVED WITH ANY FEDERAL OR STATE INVESTIGATION RELATING TO
     MARKET TIMING OR LATE TRADING?

A.   The SEC, the NASD and the Attorney General of the State of New York are
     reviewing the matters discussed herein. In addition, the Manager has
     responded to information requests from other federal and state
     governmental authorities relating to investigations of unaffiliated third
     parties. As always, the Manager will continue to cooperate fully with the
     SEC and other authorities.

Q10. DOES SELIGMAN HAVE ANY MARKET TIMING ARRANGEMENTS AT THE CURRENT TIME?

A.   Market timing arrangements in the Seligman Funds have been prohibited. In
     addition, Seligman has strengthened existing controls to discourage and
     help prevent market timing.

Q11. HAVE ANY OTHER MATTERS COME TO SELIGMAN'S ATTENTION IN THE COURSE OF ITS
     INTERNAL INQUIRY?

A.   The Manager has also reviewed its practice of placing some of the Seligman
     Funds' orders to buy and sell portfolio securities with brokerage firms in
     recognition of their sales of the Seligman Funds. At the time such orders
     were placed, this practice was permissible when done properly; however,
     the Manager believes that it may have violated applicable requirements for
     certain of such orders as a result of compensation arrangements the
     Manager had with certain brokerage firms. The Manager discontinued this
     practice entirely in October 2003 and has reported these matters to the
     Independent Directors of the Seligman Funds. The Manager is confident that
     the execution of all such orders was consistent with its best execution
     obligations and that the Seligman Funds did not pay higher brokerage
     commissions in connection with those orders than they would otherwise have
     paid for comparable transactions. Nonetheless, in order to resolve matters
     with the Independent Directors, the Manager has made payments to each of
     twenty-four funds in an amount equal to the commissions paid by each such
     fund during the period from 1998 through 2003 to certain brokerage firms
     in recognition of sales of fund shares. Amounts paid by the Manager to the
     affected funds (which in the aggregate, including interest, equaled
     approximately $1.7 million) represented, at the time of payment, less than
     $0.01 per share for each such fund. The Manager has also responded fully
     to information requests from the SEC and the NASD relating to Seligman's
     use of revenue sharing and fund portfolio brokerage commissions and will
     continue to provide additional information if, and as, requested.

Q12. HAVE ANY EMPLOYEES BEEN DISCIPLINED IN CONNECTION WITH THE MANAGER'S
     OVERALL INTERNAL REVIEW?

A.   One employee has left Seligman.

                                      17



                         DESCRIPTION OF CAPITAL STOCK

   (a) DIVIDEND RIGHTS: Common Stockholders are entitled to receive dividends
only if and to the extent declared by the Board of Directors and only after (i)
such provisions have been made for working capital and for reserves as the
Board may deem advisable, (ii) full cumulative dividends at the rate of $0.625
per share per quarterly dividend period have been paid on the Preferred Stock
for all past quarterly periods and have been provided for the current quarterly
period, and (iii) such provisions have been made for the purchase or for the
redemption (at a price of $55 per share) of the Preferred Stock as the Board
may deem advisable. In any event, no dividend may be declared upon the Common
Stock unless, at the time of such declaration, the net assets of the
Corporation, after deducting the amount of such dividend and the amount of all
unpaid dividends declared on the Preferred Stock, shall be at least equal to
$100 per outstanding share of Preferred Stock. The equivalent figure was
$3,256.66 at February 28, 2005.

   (b) VOTING RIGHTS: The Preferred Stock is entitled to two votes and the
Common Stock is entitled to one vote per share at all meetings of stockholders.
In the event of a default in payments of dividends on the Preferred Stock
equivalent to six quarterly dividends, the Preferred Stockholders are entitled,
voting separately as a class to the exclusion of Common Stockholders, to elect
two additional directors, such right to continue until all arrearages have been
paid and current Preferred Stock dividends are provided for. Notwithstanding
any provision of law requiring any action to be taken or authorized by the
affirmative vote of the holders of a designated portion of all the shares or of
the shares of each class, such action shall be effective if taken or authorized
by the affirmative vote of a majority of the aggregate number of the votes
entitled to vote thereon, except that a class vote of Preferred Stockholders is
also required to approve certain actions adversely affecting their rights. Any
change in the Corporation's fundamental policies may also be authorized by the
vote of 67% of the votes present at a meeting if the holders of a majority of
the aggregate number of votes entitled to vote are present or represented by
proxy.

   Consistent with the requirements of Maryland law, the Corporation's Charter
provides that the affirmative vote of two-thirds of the aggregate number of
votes entitled to be cast thereon shall be necessary to authorize any of the
following actions: (i) the dissolution of the Corporation; (ii) a merger or
consolidation of the Corporation (in which the Corporation is not the surviving
corporation) with (a) an open-end investment company or (b) a closed-end
investment company, unless such closed-end investment company's Articles of
Incorporation require a two-thirds or greater proportion of the votes entitled
to be cast by such company's stock to approve the types of transactions covered
by clauses (i) through (iv) of this paragraph; (iii) the sale of all or
substantially all of the assets of the Corporation to any person (as such term
is defined in the 1940 Act); or (iv) any amendment of the Charter of this
Corporation which makes any class of the Corporation's stock a redeemable
security (as such term is defined in the 1940 Act) or reduces the two-thirds
vote required to authorize the actions listed in this paragraph. This could
have the effect of delaying, deferring or preventing changes in control of the
Corporation.

   (c) LIQUIDATION RIGHTS: In the event of any voluntary or involuntary
liquidation, dissolution or winding up of the Corporation, after payment to the
Preferred Stockholders of an amount equal to $50 per share plus dividends
accrued or in arrears, the Common Stockholders are entitled, to the exclusion
of the Preferred Stockholders, to share ratably in all the remaining assets of
the Corporation available for distribution to stockholders.

   (d) OTHER PROVISIONS: Common Stockholders do not have preemptive,
subscription or conversion rights, and are not liable for further calls or
assessments. The Corporation's Board of Directors (other than any directors

                                      18



who may be elected to represent Preferred Stockholders as described above) are
classified as nearly as possible into three equal classes with a maximum
three-year term so that the term of one class of directors expires annually.
Such classification provides continuity of experience and stability of
management while providing for the election of a portion of the Board of
Directors each year. Such classification could have the effect of delaying,
deferring or preventing changes in control of the Corporation.

   The Board of Directors may classify or reclassify any unissued stock of any
class with or without par value (including Preferred Stock and Common Stock)
into one or more classes of preference stock on a parity with, but not having
preference or priority over, the Preferred Stock by fixing or altering before
the issuance thereof the designations, preferences, voting powers, restrictions
and qualifications of, the fixed annual dividends on, the times and prices of
redemption, the terms of conversion, the number and/or par value of the shares
and other provisions of such stock to the full extent permitted by the laws of
Maryland and the Corporation's Charter. Stockholder approval of such action is
not required.

                            DESCRIPTION OF WARRANTS

   The Corporation's Charter and Warrant certificates provide that each Warrant
represents the right during an unlimited time to purchase one share of Common
Stock at a price of $22.49 per share, subject to increase in the number of
shares purchasable and adjustment of the price payable pursuant to provisions
of the Charter requiring such adjustments whenever the Corporation issues any
shares of Common Stock at a price less than the Warrant purchase price in
effect immediately prior to issue. Each Warrant presently entitles the holder
to purchase 22.50 shares of Common Stock at $1.00 per share. There were 12,822
Warrants outstanding at February 28, 2005. Fractional shares of Common Stock
are not issued upon the exercise of Warrants. In lieu thereof, the Corporation
issues scrip certificates representing corresponding fractions of the right to
receive a full share of Common Stock if exchanged by the end of the second
calendar year following issuance or of the proceeds of the sale of a full share
if surrendered during the next four years thereafter.

                        COMPUTATION OF NET ASSET VALUE

   Net asset value of the Common Stock is determined daily, Monday through
Friday, as of the close of regular trading on the New York Stock Exchange
(normally, 4:00 p.m. Eastern time) each day the New York Stock Exchange is open
for trading.

   Net asset value per share of Common Stock is determined by dividing the
current value of the assets of the Corporation less its liabilities and the
prior claim of the Preferred Stock by the total number of shares of Common
Stock outstanding.

   Generally, securities owned by the Corporation are valued at the last sale
price on the securities exchange or securities market on which such securities
primarily are traded. Securities not listed on an exchange or security market
or for which there is no last sales price are valued at the mean of the most
recent bid and asked price, or by the Manager based on quotations provided by
primary market makers in such securities. If the Manager concludes that the
most recently reported (or closing) price of a security held by the Corporation
is no longer valid or reliable, or such price is otherwise unavailable, the
Manager will value the security at its fair value as

                                      19



determined in accordance with procedures approved by the Board of Directors.
This can occur in the event of, among other things, natural disasters, acts of
terrorism, market disruptions, intra-day trading halts or extreme market
volatility. Short-term holdings maturing in 60 days or less are generally
valued at amortized cost if their original maturity was 60 days or less.
Short-term holdings with more than 60 days remaining to maturity will be valued
at current market value until the 61st day prior to maturity, and will then be
valued on an amortized cost basis based on the value of such date unless the
Board determines that this amortized cost value does not represent fair market
value.

   All assets and liabilities initially expressed in foreign currencies will be
converted into U.S. dollars by a pricing service based upon the mean of the bid
and asked prices of such currencies against the U.S. dollar quoted by a major
bank which is a regular participant in the institutional foreign exchange
markets.

                           DIVIDEND POLICY AND TAXES

   DIVIDENDS: Dividends are paid quarterly on the Preferred Stock and on the
Common Stock in amounts representing substantially all of the net investment
income earned each year. Payments on the Preferred Stock are in a fixed amount,
but payments on the Common Stock vary in amount, depending on investment income
received and expenses of operation. Substantially all of any taxable net gain
realized on investments is paid to Common Stockholders at least annually in
accordance with requirements under the Internal Revenue Code of 1986, as
amended, and other applicable statutory and regulatory requirements. At
December 31, 2004, the Corporation had a net capital loss carry-forward for
federal income tax purposes, which is available for offset against future
taxable net capital gains, expiring in various amounts through 2011.
Accordingly, no capital gain distributions are expected to be paid to
stockholders until net capital gains have been realized in excess of the
available capital loss carry-forward.

   Unless SDC is otherwise instructed by you, dividends on the Common Stock are
paid in cash and capital gain distributions are paid in book shares of Common
Stock which are entered in your Tri-Continental account as "book credits."
Long-term gain distributions ordinarily are paid in shares of Common Stock, or,
at your option, 75% in book shares and 25% in cash, or, in the alternative,
100% in cash. Shares distributed in payment of gain distributions are valued at
market price or at net asset value, whichever is lower, on the valuation date.
Distributions or dividends received by you will have the effect of reducing the
net asset value of the shares of the Corporation by the amount of such
distributions. If the net asset value of shares is reduced below your cost by a
distribution, the distribution will be taxable as described below even though
it is in effect a return of capital.

   TAXES: The Corporation intends to continue to qualify and elect to be
treated as a regulated investment company under the Internal Revenue Code. As a
regulated investment company, the Corporation will generally be exempt from
federal income taxes on net ordinary income and capital gains that it
distributes to stockholders, provided that at least 90% of its net ordinary
income and net short-term capital gains are distributed to stockholders each
year.

   Qualification does not, of course, involve governmental supervision of
management or investment practices or policies. Investors should consult their
own counsel for a complete understanding of the requirements the

                                      20



Corporation must meet to qualify for such treatment. The information set forth
below relates solely to the U.S. Federal income taxes on dividends and
distributions by the Corporation and assumes that the Corporation qualifies as
a regulated investment company.

   Dividends on Common or Preferred Stock representing net investment income
and distributions from the excess of net short-term capital gains over net
long-term capital losses are taxable to stockholders as ordinary income,
whether received in cash or invested in additional shares. To the extent
designated as derived from the Corporation's dividend income that would be
eligible for the dividends received deduction if the Corporation were not a
regulated investment company, they are eligible, subject to certain
restrictions, for the 70% dividends received deduction for corporations.
Distributions of net capital gain (i.e., the excess of net long-term capital
gains over any net short-term capital losses) are taxable as long-term capital
gain, whether received in cash or invested in additional shares, regardless of
how long you have held your shares. The tax rate on net long-term capital gains
for individuals is reduced generally from 20% to 15% (5% for individuals in
lower tax brackets) for such gain held for more than one year and realized
before January 1, 2009. Such distributions are not eligible for the dividends
received deduction allowed to corporate stockholders. If you receive
distributions in the form of additional shares issued by the Corporation, you
will be treated for federal income tax purposes as having received a
distribution in an amount equal to the fair market value on the date of
distribution of the shares received.

   Dividends declared in October, November or December, payable to stockholders
of record on a specified date in such a month and paid in the following January
will be treated as having been paid by the Corporation and received by each
stockholder in December. Under this rule, therefore, stockholders may be taxed
in one year on dividends or distributions actually received in January of the
following year.

   The Corporation is subject to a 4% nondeductible excise tax on the
underdistribution of amounts required to be paid pursuant to a prescribed
formula. The formula requires payment to stockholders during a calendar year of
distributions representing at least 98% of the Corporation's ordinary income
for the calendar year, at least 98% of its capital gain net income realized
during the one-year period ending October 31 during such year, and all ordinary
income and capital gain net income for prior years that was not previously
distributed. The Corporation intends to make sufficient distributions or deemed
distributions of its ordinary income and capital gain net income prior to the
end of each calendar year to avoid liability for the excise tax.

   Any gain or loss you realize upon a sale or redemption of Common or
Preferred Stock will generally be treated as a long-term capital gain or loss
if you held your shares for more than one year and as a short-term capital gain
or loss if you held your shares for one year or less. Individual stockholders
will be subject to federal income tax on net capital gains at a maximum rate of
15% in respect of shares held for more than one year and disposed of before
January 1, 2009. Net capital gain of a corporate stockholder is taxed at the
same rate as ordinary income. However, if shares on which a long-term capital
gain distribution has been received are subsequently sold or redeemed and such
shares have been held for six months or less, (after taking into account
certain hedging transactions), any loss you realize will be treated as
long-term capital loss to the extent that it offsets the long-term capital gain
distribution. No loss will be allowed on the sale or other disposition of
shares of the Corporation if, within a period beginning 30 days before the date
of such sale or disposition and ending 30 days after such date, you acquire
(such as through the Automatic Dividend Investment and Cash Purchase Plan), or
enter into a contract or option to acquire, securities that are substantially
identical to the shares of the Corporation.

                                      21



   The tax treatment of the Corporation and of stockholders under the tax laws
of the various states may differ from the federal tax treatment. You are urged
to consult your own tax advisor regarding specific questions as to federal,
state or local taxes, including questions regarding the alternative minimum tax.

   THE CORPORATION IS REQUIRED TO WITHHOLD AND REMIT TO THE U.S. TREASURY A
PORTION OF TAXABLE DIVIDENDS AND OTHER REPORTABLE PAYMENTS PAID ON YOUR ACCOUNT
IF YOU PROVIDE THE CORPORATION WITH EITHER AN INCORRECT TAXPAYER IDENTIFICATION
NUMBER OR NO NUMBER AT ALL OR YOU FAIL TO CERTIFY THAT YOU ARE NOT SUBJECT TO
SUCH WITHHOLDING. YOU SHOULD BE AWARE THAT, UNDER REGULATIONS PROMULGATED BY
THE INTERNAL REVENUE SERVICE, THE CORPORATION MAY BE FINED ON AN ANNUAL BASIS
FOR EACH ACCOUNT FOR WHICH A CERTIFIED TAXPAYER IDENTIFICATION NUMBER IS NOT
PROVIDED. THE CORPORATION MAY CHARGE YOU A SERVICE FEE EQUAL TO SUCH FINE FOR
ACCOUNTS NOT HAVING A CERTIFIED TAXPAYER IDENTIFICATION NUMBER. CERTIFICATES
WILL NOT BE ISSUED UNLESS AN ACCOUNT IS CERTIFIED.

                      INVESTMENT PLANS AND OTHER SERVICES

AUTOMATIC DIVIDEND INVESTMENT AND CASH PURCHASE PLAN

   The Automatic Dividend Investment and Cash Purchase Plan is available for
any Common stockholder who wishes to purchase additional shares of the
Corporation's Common Stock with dividends or other cash payments on shares
owned, with cash dividends paid by other corporations in which stock is owned
or with cash funds. The tax treatment of dividends and capital gain
distributions is the same whether you take them in cash or reinvest them to buy
additional shares of the Corporation. Details of the services offered under the
Plan are given in the Authorization Form appearing in this Prospectus. Under
the Plan, you appoint the Corporation as your purchase agent to receive or
invest such dividends and cash funds forwarded by you for your accounts in
additional shares of the Corporation's Common Stock (after deducting a service
charge), as described under "Method of Purchase" below. Funds forwarded by you
under the Plan should be made payable to Tri-Continental Corporation and mailed
to Tri-Continental Corporation, P.O. Box 9766, Providence, RI 02940-9766.
Checks for investment must be in U.S. dollars drawn on a domestic bank. Credit
card convenience checks and third party checks, i.e., checks made payable to a
party other than Tri-Continental Corporation, may not be used to purchase
shares under this Plan. You should direct all correspondence concerning the
Plan to Seligman Data Corp., 100 Park Avenue, New York, NY 10017. At present, a
service fee of up to a maximum of $2.00 will be charged for each cash purchase
transaction. There is no charge for Automatic Dividend Investment. As of
February 28, 2005, 22,233 stockholders, owning approximately 29,714,304 shares
of Common Stock, were using the Plan. You may choose one or more of the
services under the Plan and you may change your choices (or terminate
participation) at any time by notifying SDC in writing. The Plan may be amended
or terminated by written notice to Planholders.

AUTOMATIC CHECK SERVICE

   The Automatic Check Service enables you, if you are an Automatic Dividend
Investment and Cash Purchase Planholder, to authorize checks to be drawn on
your regular checking account at regular intervals for fixed amounts to be
invested in additional shares of Common Stock for your account. An
Authorization Form to be used to start the Automatic Check Service is included
in this Prospectus.

                                      22



SHARE KEEPING SERVICE

   You may send certificates for shares of the Corporation's Common Stock to
SDC to be placed in your account. Certificates should be sent to Seligman Data
Corp., 101 Sabin Street, Pawtucket, RI 02860-1427, with a letter requesting
that they be placed in your account. You should not sign the certificates and
they should be sent by certified or registered mail. Return receipt is
advisable; however, this may increase mailing time. When your certificates are
received by SDC, the shares will be entered in your Tri-Continental account as
"book credits" and shown on the Statement of Account received from SDC. If you
use the Share Keeping Service you should keep in mind that you must have a
stock certificate for delivery to a broker if you wish to sell shares. A
certificate will be issued and sent to you on your written request to SDC,
usually within two business days of the receipt of your request. You should
consider the time it takes for a letter to arrive at SDC and for a certificate
to be delivered to you by mail before you choose to use this service.

TAX-DEFERRED RETIREMENT PLANS

   Shares of the Corporation may be purchased for:

   --Individual Retirement Accounts (IRAs) (available to current stockholders
   only);

   --Savings Incentive Match Plans for Employees (SIMPLE IRAs);

   --Simplified Employee Pension Plans (SEPs);

   --Section 401(k) Plans for corporations and their employees; and

   --Money Purchase Pension and Profit Sharing Plans for sole proprietorships,
   partnerships and corporations.

   These types of plans may be established only upon receipt of a written
application form. The Corporation may register an IRA investment for which an
account application has not been received as an ordinary taxable account.

   For more information, write Retirement Plan Services, Seligman Data Corp.,
100 Park Avenue, New York, NY 10017. You may telephone toll-free by dialing
(800) 445-1777 from all United States.

   State Street Bank and Trust Company acts as trustee and custodian and
performs other related services with respect to the Plans.

J. & W. SELIGMAN & CO. INCORPORATED MATCHED ACCUMULATION PLAN

   The Manager has a Matched Accumulation Plan ("Profit-Sharing Plan") which
provides that, through payroll deductions which may be combined with matching
contributions and through any profit sharing distribution made by the Manager
to the Profit-Sharing Plan, eligible employees of the Manager, Seligman
Advisors, Inc. and Seligman Services, Inc. may designate that the payroll
deductions and contributions made by the Manager and invested by the Plan
trustee, be invested in certain investment companies for which the Manager
serves as investment adviser. One such fund consists of Common Stock of the
Corporation purchased by the trustee as described under "Method of Purchase."

                                      23



SELIGMAN DATA CORP. EMPLOYEES' THRIFT PLAN

   SDC has an Employees' Thrift Plan ("Thrift Plan") which provides a
systematic means by which savings, through payroll deductions, of eligible
employees of SDC may be combined with matching contributions made by the
company and invested by the Plan trustee, in certain investment companies for
which the Manager serves as investment adviser, as designated by the employee.
One such fund consists of Common Stock of the Corporation purchased by the
trustee as described under "Method of Purchase."

METHOD OF PURCHASE

   Purchases will be made by the Corporation from time to time on the New York
Stock Exchange or elsewhere to satisfy dividend and cash purchase investments
under the Automatic Dividend Investment and Cash Purchase Plan, tax-deferred
retirement plans, and the investment plans noted above. Purchases will be
suspended on any day when the closing price (or closing bid price if there were
no sales) of the Common Stock on the New York Stock Exchange on the preceding
trading day was higher than the net asset value per share (without adjustment
for the exercise of Warrants remaining outstanding). If on the dividend payable
date or the date shares are issuable to stockholders making Cash Purchase
investments under the Plan (the "Issuance Date"), shares previously purchased
by the Corporation are insufficient to satisfy dividend or Cash Purchase
investments and on the last trading day immediately preceding the dividend
payable date or the Issuance Date the closing sale or bid price of the Common
Stock is lower than or the same as the net asset value per share, the
Corporation will continue to purchase shares until a number of shares
sufficient to cover all investments by stockholders has been purchased or the
closing sale or bid price of the Common Stock becomes higher than the net asset
value, in which case the Corporation will issue the necessary additional
shares. If on the last trading date immediately preceding the dividend payable
date or Issuance Date, the closing sale or bid price of the Common Stock was
higher than the net asset value per share, and if shares of the Common Stock
previously purchased on the New York Stock Exchange or elsewhere are
insufficient to satisfy dividend or Cash Purchase investments, the Corporation
will issue the necessary additional shares from authorized but unissued shares
of the Common Stock.

   Shares will be issued on the dividend payable date or the Issuance Date at a
price equal to the lower of (1) the closing sale or bid price, plus commission,
of the Common Stock on the New York Stock Exchange on the ex-dividend date or
Issuance Date or (2) the greater of the net asset value per share of the Common
Stock on such trading day (without adjustment for the exercise of Warrants
remaining outstanding) and 95% of the closing sale or bid price of the Common
Stock on the New York Stock Exchange on such trading day. In the past, the
Common Stock ordinarily has been priced in the market at less than net asset
value per share.

   The net proceeds to the Corporation from the sale of any shares of Common
Stock to the Plans will be added to its general funds and will be available for
additional investments and general corporate purposes. The Manager anticipates
that investment of any proceeds, in accordance with the Corporation's
investment objective and policies, will take up to thirty days from their
receipt by the Corporation, depending on market conditions and the availability
of appropriate securities, but in no event will such investment take longer
than six months. Pending such investment in accordance with the Corporation's
objective and policies, the proceeds will be held in U.S. Government Securities
(which term includes obligations of the United States Government, its agencies
or instrumentalities) and other short-term money market instruments.

   If you are participating in the Automatic Dividend Investment and Cash
Purchase Plan and your shares are held under the Plan in book credit form, you
may terminate your participation in the Plan and receive a certificate

                                      24



for all or a part of your shares or have all or a part of your shares sold for
you by the Corporation and retain unsold shares in book credit form or receive
a certificate for any shares not sold. Instructions must be signed by all
registered stockholders and should be sent to Seligman Data Corp., 101 Sabin
Street, Pawtucket, RI 02860-1427. If you elect to have shares sold, you will
receive the proceeds from the sale, less any brokerage commissions. Only
participants whose shares are held in book credit form may elect upon
termination of their participation in the Plan to have shares sold in the above
manner. All other stockholders of the Corporation must sell shares through a
registered broker/dealer. As an additional measure to protect you and the
Corporation, SDC may confirm written instructions by telephone before sending
your money when the value of the shares being sold is $25,000 or more, or when
proceeds are directed to be paid to an address or payee different from that on
our records. This will not affect the date on which your instruction to sell
shares is actually processed. Whenever the value of the shares being sold is
$50,000 or more, or the proceeds are to be paid or mailed to an address or
payee different from that on our records, the signature of all stockholders
must be guaranteed by an eligible financial institution including, but not
limited to, the following: banks, trust companies, credit unions, securities
brokers and dealers, savings and loan associations and participants in the
Securities Transfer Association Medallion Program, the Stock Exchanges
Medallion Program and the New York Stock Exchange Medallion Signature Program.
Notarization by a notary public is not an acceptable signature guarantee. The
Corporation reserves the right to reject a signature guarantee where it is
believed that the Corporation will be placed at risk by accepting such
guarantee.

SYSTEMATIC WITHDRAWAL PLAN

   This Plan is available if you wish to receive fixed payments from your
investment in the Common Stock in any amount at specified regular intervals.
You may start a Systematic Withdrawal Plan if your shares of the Corporation's
Common Stock have a market value of $5,000 or more. Shares must be held in your
account as book credits. SDC will act for you, make payments to you in
specified amounts on either the 1st or 15th day of each month, as designated by
you, and maintain your account. There is a charge by the agent of $1.00 per
withdrawal payment for this service. This charge may be changed from time to
time.

   Payments under the Systematic Withdrawal Plan will be made by selling
exactly enough full and fractional shares of Common Stock to cover the amount
of the designated withdrawal. Sales may be made on the New York Stock Exchange,
to the agent or a trustee for one of the other Plans, or elsewhere. Payments
from sales of shares will reduce the amount of capital at work and dividend
earning ability, and ultimately may liquidate the investment. Sales of shares
may result in gain or loss for income tax purposes. Withdrawals under this Plan
or any similar withdrawal plan of any other investment company, concurrent with
purchases of shares of the Common Stock or of shares of any other investment
company, will ordinarily be disadvantageous to the Planholder because of the
payment of duplicative commission or sales loads.

STOCKHOLDER INFORMATION

   SDC maintains books and records for all of the Plans, and confirms
transactions to stockholders. To insure prompt delivery of checks, account
statements and other information, you should notify SDC immediately, in
writing, of any address changes. If you close your account during any year it
is important that you notify SDC of any subsequent address changes to ensure
that you receive a year-end statement and tax information for that year. You
will be sent reports quarterly regarding the Corporation. General information
about the Corporation may be requested by writing the Corporate
Communications/Investor Relations Department, J. & W. Seligman & Co.

                                      25



Incorporated, 100 Park Avenue, New York, NY 10017 or by telephoning the
Corporate Communications/Investor Relations Department toll-free at (800)
221-7844 in the U.S. You may call (212) 850-1864 outside the U.S. Information
about your account (other than a retirement plan account), may be requested by
writing Stockholder Services, Seligman Data Corp., at the same address or by
telephone by dialing toll-free (800) 874-1092 in the U.S. or 212-682-7600
outside the U.S. For information about a retirement account, call Retirement
Plan Services toll-free at (800) 445-1777 or write Retirement Plan Services,
Seligman Data Corp. at the above address. SDC may be telephoned Monday through
Friday (except holidays) between the hours of 8:30 a.m. and 6:00 p.m. Eastern
time. Your call will be answered by a service representative.

   24-HOUR AUTOMATED TELEPHONE ACCESS IS AVAILABLE BY DIALING (800) 622-4597
(WITHIN THE UNITED STATES) ON A TOUCHTONE TELEPHONE, WHICH PROVIDES INSTANT
ACCESS TO PRICE, ACCOUNT BALANCE, MOST RECENT TRANSACTION AND OTHER
INFORMATION. IN ADDITION, YOU MAY REQUEST ACCOUNT STATEMENTS AND FORM 1099-DIV.

              ISSUANCE OF SHARES IN CONNECTION WITH ACQUISITIONS

   The Corporation may issue shares of its Common Stock in exchange for the
assets of another investment company in transactions in which the number of
shares of Common Stock of the Corporation to be delivered will be generally
determined by dividing the current value of the seller's assets by the current
per share net asset value or market price on the New York Stock Exchange of the
Common Stock of the Corporation, or by an intermediate amount. In such
acquisitions, the number of shares of the Corporation's Common Stock to be
issued will not be determined on the basis of the market price of such Common
Stock if such price is lower than its net asset value per share, except
pursuant to an appropriate order of the Securities and Exchange Commission or
approval by stockholders of the Corporation, as required by law. The
Corporation is not presently seeking to acquire the assets of any investment
company, but it may acquire the assets of companies from time to time in the
future.

   Some or all of the stock so issued may be sold from time to time by the
recipients or their stockholders through brokers in ordinary transactions on
stock exchanges at current market prices. The Corporation has been advised that
such sellers may be deemed to be underwriters as that term is defined in the
1933 Act.

                                      26



                           TABLE OF CONTENTS OF THE
                      STATEMENT OF ADDITIONAL INFORMATION


                                                                                                  
Additional Investment Policies......................................................................  2
Directors and Officers..............................................................................  4
Management of the Corporation....................................................................... 11
Portfolio Managers.................................................................................. 12
Holdings of Preferred Stock, Common Stock and Warrants.............................................. 14
Brokerage Allocation and Other Practices............................................................ 15
Financial Statements................................................................................ 16
Custodian, Stockholder Service Agent and Dividend Paying Agent and Experts.......................... 16
Report of Independent Registered Public Accounting Firm on Financial Highlights--Senior Securities--
  $2.50 Cumulative Preferred Stock.................................................................. 17


                                      27



[LOGO] Tri-Continental
Corporation                                    AUTHORIZATION
                                                FORM
To: Seligman Data Corp.                         FOR
  P.O. Box 9759
  Providence, Rhode                            AUTOMATIC
  Island 02940-9759                            DIVIDEND

                                               INVESTMENT
                                                AND
                                                CASH
                                               PURCHASE
                                                PLAN
                                               .
                                                AUTOMATIC
                                                DIVIDEND
                                                INVESTMENT
                                               .
                                                AUTOMATIC
                                                INVESTMENT
                                                OF
                                                OTHER
                                                CORPORATIONS'
                                                DIVIDENDS
                                               .CASH
                                                PURCHASE
                                                PLAN
                                               .
                                                AUTOMATIC
                                                CHECK
                                                SERVICE

                                                       Date.....................
Gentlemen:

   I own shares of Tri-Continental Corporation Common Stock registered as shown
below:

ACCOUNT REGISTRATION

            -------------------------------------------------------
            Stockholder's Name (print    Stockholder's Signature*
             or type)

            -------------------------------------------------------
            Co-Holder's Name             Co-Holder's Signature*
            -------------------------------------------------------
            Address (street and          Taxpayer Identification
             number)                      Number
            -------------------------------------------------------
            City    State     Zip Code.. Stockholder Account
                                         Number, if known

* If shares are held or to be held in more than one name, all must sign, and
  plural pronouns will be implied in the text. In the case of co-holders, a
  joint tenancy with right of survivorship will be presumed unless otherwise
  specified.

   Under penalties of perjury I certify that the number shown on this form is
my correct Taxpayer Identification Number (Social Security Number) and that I
am not subject to backup withholding either because I have not been notified
that I am subject to backup withholding as a result of failure to report all
interest or dividends, or the Internal Revenue Service has notified me that I
am no longer subject to backup withholding. I certify to my legal capacity to
purchase or sell shares of the Corporation for my own Account, or for the
Account of the organization named above. I have received a current Prospectus
of the Corporation and appoint Seligman Data Corp. as my agent to act in
accordance with my instructions herein.


                             
                         -----  -----------------------
                         Date   Stockholder's Signature

   I have read the Terms and Conditions of the Automatic Dividend Investment
and Cash Purchase Plan and the current Prospectus, a copy of which I have
received, and I wish to establish a Plan to use the Services checked below:

SERVICE(S) DESIRED

   [_] AUTOMATIC INVESTMENT OF TRI-CONTINENTAL DIVIDENDS
    I wish to have my quarterly dividends invested in additional shares, and
    distributions from gains paid as follows:
    [_] Credited to my account in additional full and fractional shares.
    [_] Credited 75% to my account in shares and 25% paid to me in cash.

   [_] AUTOMATIC INVESTMENT OF OTHER CORPORATION'S DIVIDENDS
    I intend to give orders for the payment of cash dividends from other
    corporations to be invested in shares of Tri-Continental Common Stock for
    my account.
    Note: Checks in payment of dividends from other corporations should
    indicate your name and Tri-Continental account number. The checks should be
    made payable to the order of Tri-Continental Corporation and be mailed to
    Seligman Data Corp., P.O. Box 9766, Providence, Rhode Island 02940-9766.

   [_] CASH PURCHASES
    I intend to send funds from time to time to be invested in shares of
    Tri-Continental Common Stock for my account.
    Note: Your checks should indicate your name and Tri-Continental account
    number. Make all checks payable to Tri-Continental Corporation and mail to
    Seligman Data Corp., P.O. Box 9766, Providence, Rhode Island 02940-9766.

   [_] AUTOMATIC CHECK SERVICE
    I have completed the Authorization Form to have pre-authorized checks drawn
    on my regular checking account at regular intervals for investment in
    shares of Tri-Continental Common Stock.
                                                                           5/05

                                      28




                                                   
   [LOGO] Tri-Continental
   Corporation                                                         AUTHORIZATION
                                                                         FORM
                                                                         FOR
                                                             AUTOMATIC CHECK SERVICE
   To start your Automatic Check Service, fill out this
   form and forward it with an unsigned bank check from
   your regular checking account (marked "void") to:
                 Seligman Data Corp.
                 P.O. Box 9759
                 Providence, Rhode Island 02940-9759


                                                     Date.................
   Gentlemen:

      I own shares of Tri-Continental Corporation
   Common Stock, registered as shown below, which are
   entered in the Automatic Dividend Investment and
   Cash Purchase Plan.

   1. Stockholder Account Number (if known) ____________

   2. AUTOMATIC CHECK SERVICE
     Please arrange with my bank to draw pre-authorized
     checks on my regular checking account and invest
     $__________________ in shares of Tri-Continental
     Common Stock every:

                            [_] month
                                                  [_] 3
                                                  months

     I have completed the "Bank Authorization to Honor
     Pre-Authorized Checks" which appears below and
     have enclosed one of my bank checks marked "void."
     I understand that my checks will be invested on
     the fifth day of the month and that I must
     remember to deduct the amount of my investment as
     it is made from my checking account balance.

   BANK AUTHORIZATION TO HONOR PRE-AUTHORIZED CHECKS

   To: _________________________________________________
     (Name of Bank)

     ___________________________________________________
     (Address of Bank or Branch, Street, City, State
     and Zip)

   Please honor pre-authorized checks drawn on my
   account by Seligman Data Corp., 100 Park Avenue, New
   York, NY 10017, to the order of Tri-Continental
   Corporation, and charge them to my checking account.
   Your authority to do so shall continue until you
   receive written notice from me revoking it. You may
   terminate your participation in this arrangement at
   any time by written notice to me. I agree that your
   rights with respect to each pre-authorized check
   shall be the same as if it were a check drawn and
   signed by me. I further agree that should any such
   check be dishonored, with or without cause,
   intentionally or inadvertently, you shall be held
   under no liability whatsoever.
   -------------------------------------------------------------------------------------------------------------------------
   Checking Account No.
   -------------------------------------------------------------------------------------------------------------------------
   Name(s) of                                         Signature(s) of
   Depositor(s)--Please Print                         Depositor(s)--As carried
                                                      by Bank
   -------------------------------------------------------------------------------------------------------------------------
   Address (Street)
                                                City

                                                               State
                                                Zip Code


                                                                           5/05

                                      29



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                                      30



                             TERMS AND CONDITIONS

   The Automatic Dividend Investment and Cash Purchase Plan provides
Tri-Continental Common stockholders with four ways to add to their investments:
1) with Tri-Continental dividends and distributions, 2) with cash dividends
from other corporations, 3) with cash payments, in any amount at any time, and
4) with cash provided by pre-authorized checks through the Automatic Check
Service. A Planholder may use any or all of these Services, subject to the
following terms and conditions:

   1. Seligman Data Corp. ("SDC"), as Plan service agent, will maintain
accounts and confirm to Planholders, as soon as practicable after each
investment, the number of shares of Common Stock acquired and credited to the
accounts and the cost. Tri-Continental Corporation (the "Corporation"), as
purchase agent, will purchase shares for Planholders. All checks for dividends
payable by other corporations or for cash purchase payments sent by Planholders
for investment in additional shares of Tri-Continental Common Stock should be
drawn to the order of Tri-Continental Corporation and mailed to Seligman Data
Corp., P.O. Box 9766, Providence, Rhode Island 02940-9766.

   2. Funds received by the Corporation for a Planholder will be combined with
funds of other Planholders and those funds may be combined with funds available
under the other Plans for the purchase of Tri-Continental Common Stock in order
to minimize brokerage commissions on shares purchased. Shares will be purchased
in accordance with the current Prospectus. Dividends from other corporations
and purchase cash received from Planholders or through the Automatic Check
Service will be invested at least once each 30 days.

   3.  Shares will be issued under the Plan in accordance with the current
Prospectus.

   4. No stock certificates will be delivered for shares acquired unless the
Plan account is terminated or the Planholder requests their delivery by writing
to SDC. The shares acquired will be held in each Planholder's account as book
credits.

   5. Certificates held by a Planholder, or subsequently received, may be sent
to SDC for credit to a Plan account. A certificate for any full shares held in
a Plan account will be issued at a Planholder's request. The time required to
obtain a certificate to sell through a broker, or for other purposes, will be
that needed to send a written request to SDC to withdraw the certificate
(normally two business days) and to mail the certificate to the Planholder
through the U.S. Postal Service.

   6. A maximum service charge of $2.00 will be deducted before each investment
is made for a Plan account. There is no charge for Automatic Dividend
Investment.

   7. Applications for the Automatic Check Service are subject to acceptance by
the Planholder's bank and SDC. SDC will prepare Automatic Check Service checks
with the same magnetic ink numbers that are on a Planholder's check and will
arrange with the Planholder's bank to start the Service in accordance with the
Planholder's instructions. A minimum of 30 days from the date of receipt of an
application by SDC is required to contact the bank and initiate the Service. If
for any reason the bank is unable to honor a pre-authorized check request, the
Planholder will be notified promptly.

   Shares with a market value of at least two times the amount of the
authorized checks must be held as book credits for the Planholder's account by
SDC. If any check is dishonored or if the value of shares held by SDC in an
account falls below the required minimum, the Service may be suspended. The
Service may be reinstated upon written request by the Planholder including an
indication that the cause of the interruption has been corrected.

   If a Planholder's check is not honored by the Planholder's bank at any time,
SDC is authorized to sell exactly enough full and fractional shares from the
Planholder's account to equal the amount of the dishonored check.

   8. A Planholder or SDC may terminate a Plan account at any time upon notice
in writing before the record date of a dividend or distribution by
Tri-Continental. A Plan account will terminate automatically if the Planholder
sells or transfers all of the shares in the Plan account. If a Plan account is
terminated, a certificate for the full shares held may be issued and sent to
the Planholder, and any fractional shares may be liquidated at the Planholder's
request. Terminating Planholders may elect to have all or part of their shares
sold by the Corporation, if their shares are held in book credit form. If a
Plan account is terminated between the record and payment dates of a dividend,
the dividend payment will be made in cash.

   9. In acting under this Plan, the Corporation and SDC will be liable only
for willful misfeasance or gross negligence.

   10. A Planholder may adopt or suspend one or more of the Plan Services by
sending a revised Authorization Form or notice in writing to SDC.

   11. All additional shares registered in a Planholder's name which are
acquired under one or more of the Plan Services or by other means will
participate automatically in each of the Plan services elected.

                                      31





[LOGO] Tri-Continental Corporation
                        an investment you can live with

                              INVESTMENT MANAGER
                            J. & W. Seligman & Co.
                                 Incorporated

                                  STOCKHOLDER
                                 SERVICE AGENT
                              Seligman Data Corp.

                             PORTFOLIO SECURITIES
                                   CUSTODIAN
                             State Street Bank and
                                 Trust Company

                                GENERAL COUNSEL
                            Sullivan & Cromwell LLP
                                   ---------

                                 Listed on the
                            New York Stock Exchange
                                      TY




                           TRI-CONTINENTAL CORPORATION


                       Statement of Additional Information
                                   May 2, 2005

                                 100 Park Avenue
                            New York, New York 10017

                     New York City Telephone: (212) 682-7600
              Toll-Free Telephone: (800) 874-1092 all United States
      For Retirement Plan Information - Toll-Free Telephone: (800) 445-1777

This Statement of Additional Information ("SAI") is not a prospectus. This SAI
relates to the current Prospectus of Tri-Continental Corporation (the
"Corporation"), dated May 2, 2005 (the "Prospectus"), and should be read in
conjunction therewith. A copy of the Prospectus may be obtained by writing or
calling the Corporation at the above address or telephone numbers. The SAI, as
well as the Corporation's most recent Annual and Semi-Annual Reports are also
available at the Corporation's website, www.tricontinental.com. The reference to
the Corporation's website is an inactive textual reference and information
contained in or otherwise accessible through the Corporation's website does not
form a part of this SAI.

A registration statement relating to these securities has been filed with the
Securities and Exchange Commission ("SEC").



                                Table of Contents
                                -----------------

     Additional Investment Policies (See "Investment Objective and
       Other Policies and Related Risks" in the Prospectus) .............  2
     Directors and Officers .............................................  4
     Management of the Corporation (See "Management of the
       Corporation" in the Prospectus) .................................. 11
     Portfolio Managers ................................................. 12
     Holdings of Preferred Stock, Common Stock and Warrants ............. 14
     Brokerage Allocation and Other Practices ........................... 15
     Financial Statements ............................................... 16
     Custodian, Stockholder Service Agent and
       Dividend Paying Agent and Experts ................................ 16
     Report of Independent Registered Public Accounting Firm
       on Financial Highlights -- Senior Securities -- $2.50 Cumulative
       Preferred Stock .................................................. 17





                         ADDITIONAL INVESTMENT POLICIES

The investment objectives and policies of the Corporation are set forth in the
Prospectus. Certain additional investment information is set forth below.
Defined terms used herein and not otherwise defined shall have the meanings
ascribed to them in the Prospectus.


Fundamental Policies

The Corporation's stated fundamental policies, which may not be changed without
a vote of stockholders are listed below; within the limits of these fundamental
policies, the management has reserved freedom of action. The Corporation:

(1)  may issue senior securities such as bonds, notes or other evidences of
     indebtedness if immediately after issuance the net assets of the
     Corporation provide 300% coverage of the aggregate principal amount of all
     bonds, notes or other evidences of indebtedness and that amount does not
     exceed 150% of the capital and surplus of the Corporation;

(2)  may issue senior equity securities on a parity with, but not having
     preference or priority over, the Preferred Stock if immediately after
     issuance its net assets are equal to at least 200% of the aggregate amount
     (exclusive of any dividends accrued or in arrears) to which all shares of
     the Preferred Stock, then outstanding, shall be entitled as a preference
     over the Common Stock in the event of voluntary or involuntary liquidation,
     dissolution or winding up of the Corporation;

(3)  may borrow money for substantially the same purposes as it may issue senior
     debt securities, subject to the same restrictions and to any applicable
     limitations prescribed by law;

(4)  may engage in the business of underwriting securities either directly or
     through majority-owned subsidiaries subject to any applicable restrictions
     and limitations prescribed by law;

(5)  does not intend to concentrate its assets in any one industry although it
     may from time to time invest up to 25% of the value of its assets, taken at
     market value, in a single industry;

(6)  may not, with limited exceptions, purchase and sell real estate directly
     but may do so through majority-owned subsidiaries, so long as its real
     estate investments do not exceed 10% of the value of the Corporation's
     total assets;

(7)  may not purchase or sell commodities or commodity contracts; and

(8)  may make money loans (subject to restrictions imposed by law and by
     charter) (a) only to its subsidiaries, (b) as incidents to its business
     transactions or (c) for other purposes. It may lend its portfolio
     securities to brokers or dealers in corporate or government securities,
     banks or other recognized institutional borrowers of securities subject to
     any applicable requirements of a national securities exchange or of a
     governmental regulatory body against collateral consisting of cash or
     direct obligations of the United States, maintained on a current basis, so
     long as all such loans do not exceed 10% of the value of total assets, and
     it may make loans represented by repurchase agreements, as described in the
     Prospectus, so long as such loans do not exceed 10% of the value of total
     assets.

During its last three fiscal years, the Corporation did not: (a) issue senior
securities; (b) borrow any money; (c) underwrite securities; (d) concentrate
investments in particular industries or groups of industries; (e) purchase or
sell real estate, commodities, or commodity contracts; or (f) make money loans
or lend portfolio securities.


Other Policies

Leverage. When securities are loaned, the Corporation receives from the borrower
the equivalent of dividends or interest paid by the issuer of securities on loan
and, at the same time, makes short-term investments with the cash collateral and
retains the interest earned, after payment to the borrower or placing broker of
a negotiated portion of such interest, or receives from the borrower an agreed
upon rate of interest in the case of loans collateralized by direct obligations
of the United States. The Corporation does not have the right to vote securities
on loan, but would expect to terminate the loan and regain the right to vote if
that were considered important with respect to the investment.


                                       2



Foreign Securities. In order to take advantage of opportunities that may be
provided by debt instruments of foreign issuers, the Corporation may from time
to time invest up to 3% of its assets in debt securities issued or guaranteed by
a foreign government or any of its political subdivisions, authorities, agencies
or instrumentalities and in related forward contracts. The Manager will
determine the percentage of assets invested in securities of a particular
country or denominated in a particular currency in accordance with its
assessment of the relative yield and appreciation potential of such securities
and the relationship of a country's currency to the US dollar. Currently, the
Corporation will invest in securities denominated in foreign currencies or US
dollars of issuers located in the following countries: Australia, Austria,
Belgium, Canada, Denmark, France, Germany, Hong Kong, Italy, Japan, Malaysia,
Mexico, the Netherlands, New Zealand, Norway, Singapore, Spain, Sweden,
Switzerland, Thailand and the United Kingdom. An issuer of debt securities
purchased by the Corporation may be domiciled in a country other than the
country in whose currency the instrument is denominated.

The Corporation's returns on foreign currency denominated debt instruments can
be adversely affected by changes in the relationship between the US dollar and
foreign currencies. The Corporation may engage in currency exchange transactions
to protect against uncertainty in the level of future exchange rates in
connection with hedging and other non-speculative strategies involving specific
settlement transactions or portfolio positions. The Corporation will conduct its
currency exchange transactions either on a spot (i.e., cash) basis at the rate
prevailing in the currency market or through forward contracts.

Rights and Warrants. The Corporation may not invest in rights and warrants if,
at the time of acquisition, the investment in rights and warrants would exceed
5% of the Corporation's net assets, valued at the lower of cost or market. In
addition, no more than 2% of net assets may be invested in warrants not listed
on the New York or American Stock Exchanges. For purposes of this restriction,
warrants acquired by the Corporation in units or attached to securities may be
deemed to have been purchased without cost.

Forward Foreign Currency Exchange Contracts. A forward foreign currency exchange
contract is an agreement to purchase or sell a specific currency at a future
date and at a price set at the time the contract is entered into. The
Corporation will generally enter into forward foreign currency exchange
contracts to fix the US dollar value of a security it has agreed to buy or sell
for the period between the date the trade was entered into and the date the
security is delivered and paid for, or, to hedge the US dollar value of
securities it owns.

The Corporation may enter into a forward contract to sell or buy the amount of a
foreign currency it believes may experience a substantial movement against the
US dollar. In this case the contract would approximate the value of some or all
of the Corporation's portfolio securities denominated in such foreign currency.
Under normal circumstances, the portfolio manager will limit forward currency
contracts to not greater than 75% of the Corporation's portfolio position in any
one country as of the date the contract is entered into. This limitation will be
measured at the point the hedging transaction is entered into by the
Corporation. Under extraordinary circumstances, the Manager may enter into
forward currency contracts in excess of 75% of the Corporation's portfolio
position in any one country as of the date the contract is entered into. The
precise matching of the forward contract amounts and the value of securities
involved will not generally be possible since the future value of such
securities in foreign currencies will change as a consequence of market
involvement in the value of those securities between the date the forward
contract is entered into and the date it matures. The projection of short-term
currency market movement is extremely difficult, and the successful execution of
a short-term hedging strategy is highly uncertain. Under certain circumstances,
the Corporation may commit up to the entire value of its assets which are
denominated in foreign currencies to the consummation of these contracts. The
Manager will consider the effect a substantial commitment of its assets to
forward contracts would have on the investment program of the Corporation and
its ability to purchase additional securities.

Except as set forth above and immediately below, the Corporation will also not
enter into such forward contracts or maintain a net exposure to such contracts
where the consummation of the contracts would oblige the Corporation to deliver
an amount of foreign currency in excess of the value of the Corporation's
portfolio securities or other assets denominated in that currency. The
Corporation, in order to avoid excess transactions and transaction costs, may
nonetheless maintain a net exposure to forward contracts in excess of the value
of the Corporation's portfolio securities or other assets denominated in that
currency provided the excess amount is "covered" by cash or liquid, high-grade
debt securities, denominated in any currency, at least equal at all times to the
amount of such excess. Under normal circumstances, consideration of the prospect
for currency parties will be incorporated into the longer-term investment
decisions made with regard to overall diversification strategies. However, the
Manager believes that it is important to have the flexibility to enter into such
forward contracts when it determines that the best interests of the Corporation
will be served.


                                       3



At the maturity of a forward contract, the Corporation may either sell the
portfolio security and make delivery of the foreign currency, or it may retain
the security and terminate its contractual obligation to deliver the foreign
currency by purchasing an "offsetting" contract obligating it to purchase, on
the same maturity date, the same amount of the foreign currency.

As indicated above, it is impossible to forecast with absolute precision the
market value of portfolio securities at the expiration of the forward contract.
Accordingly, it may be necessary for the Corporation to purchase additional
foreign currency on the spot market (and bear the expense of such purchase) if
the market value of the security is less than the amount of foreign currency the
Corporation is obligated to deliver and if a decision is made to sell the
security and make delivery of the foreign currency. Conversely, it may be
necessary to sell on the spot market some of the foreign currency received upon
the sale of the portfolio security if its market value exceeds the amount of
foreign currency the Corporation is obligated to deliver. However, the
Corporation may use liquid, high-grade debt securities, denominated in any
currency, to cover the amount by which the value of a forward contract exceeds
the value of the securities to which it relates.

If the Corporation retains the portfolio security and engages in offsetting
transactions, the Corporation will incur a gain or a loss (as described below)
to the extent that there has been movement in forward contract prices. If the
Corporation engages in an offsetting transaction, it may subsequently enter into
a new forward contract to sell the foreign currency. Should forward prices
decline during the period between the Corporation's entering into a forward
contract for the sale of a foreign currency and the date it enters into an
offsetting contract for the purchase of the foreign currency, the Corporation
will realize a gain to the extent the price of the currency it has agreed to
sell exceeds the price of the currency it has agreed to purchase. Should forward
prices increase, the Corporation will suffer a loss to the extent the price of
the currency it has agreed to purchase exceeds the price of the currency it has
agreed to sell.

The Corporation's dealing in forward foreign currency exchange contracts will be
limited to the transactions described above. Of course, the Corporation is not
required to enter into forward contracts with regard to its foreign
currency-denominated securities and will not do so unless deemed appropriate by
the Manager. It also should be realized that this method of hedging against a
decline in the value of a currency does not eliminate fluctuations in the
underlying prices of the securities. It simply establishes a rate of exchange at
a future date. Additionally, although such contracts tend to minimize the risk
of loss due to a decline in the value of a hedged currency, at the same time,
they tend to limit any potential gain which might result from an increase in the
value of that currency.

Stockholders should be aware of the costs of currency conversion. Although
foreign exchange dealers do not charge a fee for conversion, they do realize a
profit based on the difference (the "spread") between the prices at which they
are buying and selling various currencies. Thus, a dealer may offer to sell a
foreign currency to the Corporation at one rate, while offering a lesser rate of
exchange should the Corporation desire to resell that currency to the dealer.

Investment income received by the Corporation from sources within foreign
countries may be subject to foreign income taxes withheld at the source. The
United States has entered into tax treaties with many foreign countries which
entitle the Corporation to a reduced rate of such taxes or exemption from taxes
on such income. It is impossible to determine the effective rate of foreign tax
in advance since the amounts of the Corporation's assets to be invested within
various countries is not known.


Portfolio Turnover

The Corporation's portfolio turnover rate for the years ended December 31, 2004
and 2003 were 47.36% and 138.65%, respectively. The higher turnover rate in 2003
was due to portfolio repositioning in connection with a change in portfolio
management.


                             DIRECTORS AND OFFICERS


Board of Directors

The Board of Directors provides broad supervision over the affairs of the
Corporation.


Management Information

Information with respect to Directors and officers of the Corporation and their
business experience for the past five years is shown below. Unless otherwise
noted, their addresses are 100 Park Avenue, New York, NY 10017.

                                       4






                             Term of                                                                                  Number of
                           Office and                                                                               Portfolios in
                            Length of                                                                               Fund Complex
Name, (Age), Position(s)      Time         Principal Occupation(s) During Past 5 Years, Directorships                Overseen by
    With Corporation         Served*                         and Other Information                                     Director
-----------------------------------------------------------------------------------------------------------------------------------
                                                   INDEPENDENT DIRECTORS
-----------------------------------------------------------------------------------------------------------------------------------
                                                                                                             
Robert B. Catell (68)      2003-2006;      Chairman, Chief Executive Officer and Director, KeySpan Corporation,           60
Director                  2003 to Date     diversified energy, gas and electric company; Director or Trustee
                                           of each of the investment companies of the Seligman Group of Funds**
                                           (with the exception of Seligman Cash Management Fund, Inc.);
                                           Director, Keyera Facilities Income Fund, natural gas gathering and
                                           processing company; Director or Trustee, Alberta Northeast Gas, Ltd.,
                                           Boundary Gas Inc. The Houston Exploration Company, oil and gas
                                           exploration, development and production companies; Edison Electric
                                           Institute, New York State Energy Research and Development Authority,
                                           Independence Community Bank, Business Council of New York State, Inc.,
                                           New York City Partnership and the Long Island Association, business
                                           and civic organizations.

John R. Galvin (75)         2003-2006;     Dean Emeritus, Fletcher School of Law and Diplomacy at Tufts                   61
Director                   1995 to Date    University; Director or Trustee of each of the investment companies
                                           of the Seligman Group of Funds**; and Chairman Emeritus, American
                                           Council on Germany.  Formerly, Director, Raytheon Co., defense and
                                           commercial electronics; and Governor of the Center for Creative
                                           Leadership.  From February 1995 until June 1997, he was a Director,
                                           USLIFE Corporation, life insurance.  From June 1987 to June 1992,
                                           he was the Supreme Allied Commander, NATO and the
                                           Commander-in-Chief, United States European Command.

Alice S. Ilchman (70)       2004-2007;     President Emerita, Sarah Lawrence College; Director or Trustee of             61
Director                   1990 to Date    each of the investment companies of the Seligman Group of Funds**;
                                           Director, Jeannette K. Watson Summer Fellowship, summer internships for
                                           college students; Trustee, the Committee for Economic Development;
                                           Governor, Court of Governors, London School of Economics; and Director,
                                           Public Broadcasting Service (PBS). Formerly, Trustee, Save the Children,
                                           non-profit child-assistance organization, Chairman, The Rockefeller
                                           Foundation, charitable foundation; and Director (from September 1987
                                           until September 1997), New York Telephone Company.

Frank A. McPherson (72)     2004-2007;     Retired Chairman of the Board and Chief Executive Officer of                  61
Director                   1995 to Date    Kerr-McGee Corporation, diversified energy and chemical company;
                                           Director or Trustee of each of the investment companies of the Seligman
                                           Group of Funds**; Director, ConocoPhillips, integrated international
                                           oil corporation, Integris Health, owner of various hospitals,
                                           Oklahoma Chapter of the Nature Conservancy, Oklahoma Medical
                                           Research Foundation, Boys and Girls Clubs of Oklahoma, Oklahoma City
                                           Public Schools Foundation and Oklahoma Foundation for Excellence in
                                           Education. Formerly, Director, BOK Financial, bank holding company,
                                           Kimberly-Clark Corporation, consumer products and Director (from 1990
                                           until 1994), the Federal Reserve System's Kansas City Reserve Bank.

John E. Merow (75)          2002-2005;     Retired Chairman and Senior Partner, Sullivan & Cromwell LLP, law             61
Director                   1991 to Date    firm; Director or Trustee of each of the investment companies of the
                                           Seligman Group of Funds**; Director, Aleris International, Inc.,
                                           aluminum and zinc recycler and aluminum rolled products, Director
                                           Emeritus, the Municipal Art Society of New York, Executive Committee
                                           Member and Secretary, the U.S. Council for International Business and
                                           Trustee, the New York-Presbyterian Hospital; Trustee and Vice
                                           Chairman, New York-Presbyterian Healthcare System, Inc.; and Member
                                           of the American Law Institute and the Council on Foreign Relations.

Betsy S. Michel (62)        2005-2008;     Attorney; Director or Trustee of each of the investment companies of          61
Director                   1985 to Date    the Seligman Group of Funds**; Trustee, The Geraldine R. Dodge
                                           Foundation, charitable foundation.  Formerly, Chairman of the Board
                                           of Trustees of St. George's School (Newport, RI) and Trustee, World
                                           Learning, Inc., international educational training.



                                       5







                             Term of                                                                                  Number of
                           Office and                                                                               Portfolios in
                            Length of                                                                               Fund Complex
Name, (Age), Position(s)      Time         Principal Occupation(s) During Past 5 Years, Directorships                Overseen by
    With Corporation         Served*                         and Other Information                                     Director
-----------------------------------------------------------------------------------------------------------------------------------
                                                   INDEPENDENT DIRECTORS
-----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Leroy C. Richie (63)        2004-2007;     Chairman and Chief Executive Officer, Q Standards Worldwide, Inc.,            60
Director                   2000 to Date    library of technical standards; Director or Trustee of each of the
                                           investment companies of the Seligman Group of Funds** (with the
                                           exception of Seligman Cash Management Fund, Inc.); Director, Kerr-McGee
                                           Corporation, diversified energy and chemical company, and Infinity, Inc.,
                                           oil and gas services and exploration; Director and Chairman, Highland Park
                                           Michigan Economic Development Corp.Formerly, Trustee, New York
                                           University Law Center Foundation; Vice Chairman, Detroit Medical
                                           Center; Chairman and Chief Executive Officer, Capital Coating
                                           Technologies, Inc., applied coating technologies; and Vice President and
                                           General Counsel (from 1990 until 1997), Automotive Legal Affairs,
                                           Chrysler Corporation.

Robert L. Shafer (72)       2003-2006;     Ambassador and Permanent Observer of the Sovereign and Military               61
Director                   1991 to Date    Order of Malta to the United Nations and Director or Trustee of
                                           each of the investment companies of the Seligman Group of Funds**.
                                           Formerly, Director (from May 1987 until June 1997), USLIFE Corporation,
                                           life insurance; and Vice President (from December 1973 until January
                                           1996), Pfizer Inc., pharmaceuticals.

James N. Whitson (70)       2005-2008;     Retired Executive Vice President and Chief Operating Officer,                 61
Director                   1993 to Date    Sammons Enterprises, Inc., diversified holding company; Director or
                                           Trustee of each of the investment companies of the Seligman Group
                                           of Funds**; Director, CommScope, Inc., manufacturer of coaxial
                                           cable.  Formerly, Director and Consultant, Sammons Enterprises,
                                           Inc. and Director, C-SPAN, cable television networks.


----------------------------------------------------------------------------------------------------------------------------
                                         INTERESTED DIRECTORS AND PRINCIPAL OFFICERS
----------------------------------------------------------------------------------------------------------------------------
William C. Morris*** (67)   2003-2006;     Chairman, J. & W. Seligman & Co. Incorporated; Chairman of the Board          61
Director and Chairman of   1988 to Date    and Director or Trustee of each of the investment companies of the
the Board                                  Seligman Group of Funds**; Chairman, Seligman Advisors, Inc.,
                                           Seligman Services, Inc. and Carbo Ceramics Inc., manufacturer of
                                           ceramic proppants for oil and gas industry; Director, Seligman Data
                                           Corp.; and President and Chief Executive Officer, The Metropolitan
                                           Opera Association.  Formerly, Director, Kerr-McGee Corporation,
                                           diversified energy and chemical company and Chief Executive Officer
                                           of each of the investment companies of the Seligman Group of Funds.

Brian T. Zino*** (52)       2005-2008;     Director and President, J. & W. Seligman & Co. Incorporated; Chief            61
Director, President and     Dir.: 1993     Executive Officer, President and Director or Trustee of each of the
Chief Executive Officer      to Date       investment companies of the Seligman Group of Funds**; Director,
                           Pres.: 1995     Seligman Advisors, Inc. and Seligman Services, Inc.; Chairman,
                             to Date       Seligman Data Corp.; Member of the Board of Governors of the
                          CEO.: 2002 to    Investment Company Institute; and Director (formerly Vice
                               Date        Chairman), ICI Mutual Insurance Company.

Charles W. Kadlec (59)     1996 to Date    Managing Director, J. & W. Seligman & Co. Incorporated and                    N/A
Vice President                             President, Seligman Advisors, Inc. and Seligman Services, Inc.  He
                                           is also Vice President and Portfolio Manager of Seligman Time
                                           Horizon Harvester Series, Inc.



                                       6





                             Term of                                                                                  Number of
                           Office and                                                                               Portfolios in
                            Length of                                                                               Fund Complex
Name, (Age), Position(s)      Time         Principal Occupation(s) During Past 5 Years, Directorships                Overseen by
    With Corporation         Served*                         and Other Information                                     Director
-----------------------------------------------------------------------------------------------------------------------------------
                                         INTERESTED DIRECTORS AND PRINCIPAL OFFICERS
-----------------------------------------------------------------------------------------------------------------------------------
                                                                                                              
John B. Cunningham (40)    2004 to Date    In addition to his responsibilities with the Corporation, he is              N/A
Vice President and                         Managing Director and Chief Investment Officer, J. & W. Seligman &
Portfolio Manager                          Co. Incorporated; Vice President and Portfolio Manager of Seligman
                                           Common Stock Fund, Inc., Vice President and Co-Portfolio Manager of
                                           Seligman Income and Growth Fund, Inc. and Vice President of Seligman
                                           Portfolios, Inc. and Portfolio Manager of Seligman Common Stock
                                           Portfolio and Co-Portfolio Manager of Seligman Income and Growth
                                           Portfolio.  Formerly, beginning in 2001, Managing Director, Senior
                                           Portfolio Manager, Salomon Brothers Asset Management ("SBAM") and
                                           Group Head, SBAM's Equity Team.  Prior to 2001, Director, Portfolio
                                           Manager of SBAM.

Michael F. McGarry (41)    2004 to Date    In addition to his responsibilities with the Corporation, he is              N/A
Vice President and                         Managing Director, J. & W. Seligman & Co. Incorporated; Vice
Co-Portfolio Manager                       President and Co-Portfolio Manager of Seligman Common Stock Fund,
                                           Inc. and Vice President of Seligman Portfolios, Inc. and Co-Portfolio
                                           Manager of Seligman Common Stock Portfolio. He joined Seligman in
                                           August 1990 as an Institutional Portfolio Administrator and has been
                                           a member of the team managing the Funds since October 2001.

Eleanor T.M. Hoagland (54) July 2004 to    Managing Director, J. & W Seligman & Co. Incorporated; Vice President        N/A
Vice President and Chief       Date        and Chief Compliance Officer of each of the investment companies of
Compliance Officer                         the Seligman Group of Funds**.  Formerly, Managing Director, Partner
                                           and Chief Portfolio Strategist, AMT Capital Management from 1994 to
                                           2000.

Thomas G. Rose (47)        2000 to Date    Chief Financial Officer, Senior Vice President, Finance, and                 N/A
Vice President                             Treasurer, J. & W. Seligman & Co. Incorporated, Senior Vice
                                           President, Finance, Seligman Advisors, Inc. and Seligman Data Corp.;
                                           Vice President of each of the investment companies of the
                                           Seligman Group of Funds** and of Seligman Services, Inc. and Seligman
                                           International, Inc. Formerly, Treasurer of each of the investment
                                           companies of the Seligman Group of Funds and of Seligman Data Corp.

Lawrence P. Vogel (48)    V.P.: 1992 to    Senior Vice President and Treasurer, Investment Companies, J. & W.           N/A
Vice President                 Date        Seligman & Co. Incorporated; Vice President and Treasurer of each of
and Treasurer              Treas.: 2000    the investment companies of the Seligman Group of Funds** and
                             to Date       Treasurer, Seligman Data Corp.  Formerly, Senior Vice President,
                                           Finance, J. & W. Seligman & Co. Incorporated, Seligman Advisors,
                                           Inc., Seligman International, Inc. and Seligman Data Corp.; Vice
                                           President, Seligman Services, Inc.; and Treasurer, Seligman
                                           International, Inc.

Frank J. Nasta (40)        1994 to Date    Director, Managing Director, General Counsel and Corporate                   N/A
Secretary                                  Secretary, J. & W. Seligman & Co. Incorporated; Secretary,
                                           of each of the investment companies of the Seligman Group of
                                           Funds**; and Corporate Secretary, Seligman Advisors, Inc., Seligman
                                           Services, Inc., Seligman International, Inc. and Seligman Data Corp.

---------------------
*    All officers are elected annually by the Board and serve until their
     successors are elected and qualified or their earlier resignation.
**   The Seligman Group of Funds currently consists of twenty-three registered
     investment companies.
***  Mr. Morris and Mr. Zino are considered "interested persons" of the
     Corporation, as defined in the 1940 Act, by virtue of their positions with
     J. & W. Seligman & Co. Incorporated and its affiliates.

The standing committees of the Board include the Board Operations Committee,
Audit Committee and Director Nominating Committee. These Committees are
comprised solely of Directors who are not "interested" persons of the
Corporation as that term is defined in the Investment Company Act of 1940, as
amended ("1940 Act"). The duties of these Committees are described below.


                                       7



Board Operations Committee. This Committee has authority generally to direct the
operations of the Board, including the nomination of members of other Board
Committees and the selection of legal counsel for the Corporation. The Committee
met nine times during the year ended December 31, 2004. Members of the Committee
are Messrs. McPherson (Chairman), Catell, Galvin, Merow, Richie, Shafer and
Whitson, and Dr. Ilchman and Ms. Michel.

Audit Committee. This Committee recommends the independent public accountants
for selection as auditors by the Board annually. In addition, the Committee
assists the Board in its oversight of the Fund's financial reporting process and
operates pursuant to a written charter, which is periodically included as an
annex to the Corporation's annual proxy statement. The Committee met three times
during the year ended December 31, 2004. Members of the Committee are Messrs.
Whitson (Chairman), Galvin, Merow and Richie, and Ms. Michel.

Director Nominating Committee. This Committee selects and nominates persons for
election as Directors by the Board. In addition, if a stockholder meeting is
held where Directors are to be elected, the Committee will select and nominate
persons for election as Directors at such stockholder meeting. The Committee
will consider and evaluate nominee candidates properly submitted by stockholders
in accordance with the Corporation's Nominating Committee Charter, which is
periodically included as an annex to the Corporation's annual proxy statement.
The Committee met twice during the year ended December 31, 2004. Members of the
Committee are Messrs. Shafer (Chairman), Catell and McPherson, and Dr. Ilchman.


Beneficial Ownership of Shares

As of December 31, 2004, the Directors beneficially owned shares in the
Corporation and the Seligman Group of Funds as follows:



                                                                           Aggregate Dollar Range of Shares
                                      Dollar Range of Fund Shares Owned   Owned by Director in the Seligman
               Name                              By Director                       Group of Funds
-------------------------------------------------------------------------------------------------------------
                                           INDEPENDENT DIRECTORS
-------------------------------------------------------------------------------------------------------------
                                                                     
Robert B. Catell                              $50,001 - $100,000                  $50,001 - $100,000
John R. Galvin                                 $10,001-$50,000                    $50,001 - $100,000
Alice S. Ilchman                                Over-$100,000                       Over $100,000
Frank A. McPherson                              Over $100,000                       Over $100,000
John E. Merow                                   Over $100,000                       Over $100,000
Betsy S. Michel                                $10,001-$50,000                      Over $100,000
Leroy C. Richie                                $10,001-$50,000                     $10,001-$50,000
Robert L. Shafer                               $50,001-$100,000                     Over $100,000
James N. Whitson                                Over $100,000                       Over $100,000
-------------------------------------------------------------------------------------------------------------
                                            INTERESTED DIRECTORS
-------------------------------------------------------------------------------------------------------------
William C. Morris                               Over $100,000                       Over $100,000
Brian T. Zino                                   Over $100,000                       Over $100,000


Compensation Table

                                                                      Pension or          Total Compensation
                                               Aggregate         Retirement Benefits     from Corporation and
                                             Compensation         Accrued as part of       Fund Complex Paid
 Name and Position with Corporation      from Corporation (1)   Corporation Expenses      to Directors (1)(2)
 -----------------------------------     --------------------   ---------------------     -------------------
Robert B. Catell, Director                      $28,457                  N/A                    $85,500
John R. Galvin, Director                         32,172                  N/A                     94,500
Alice S. Ilchman, Director                       32,172                  N/A                     94,500
Frank A. McPherson, Director                     29,698                  N/A                     88,500
John E. Merow, Director                          32,202                  N/A                     94,500
Betsy S. Michel, Director                        32,808                  N/A                     96,000
Leroy C. Richie, Director                        32,202                  N/A                     94,500
Robert L. Shafer, Director                       30,934                  N/A                     93,000
James N. Whitson, Director                       30,945                  N/A                     91,500


----------------------
(1)  Based on remuneration received by the Directors of the Corporation for the
     year ended December 31, 2004.
(2)  At December 31, 2004, the Seligman Group of Funds consisted of twenty-three
     investment companies.

No compensation is paid by the Corporation to Directors or officers of the
Corporation who are employees of the Manager.


                                       8



The Corporation has adopted a deferred compensation plan under which independent
directors may elect to defer receiving their fees. A director who has elected
deferral of his or her fees may choose a rate of return equal to either (1) the
interest rate on short-term Treasury Bills, or (2) the rate of return on the
shares of certain of the investment companies advised by the Manager, as
designated by the director. The annual cost of such fees and interest is
included in the director's fees and expenses and the accumulated balance thereof
is included in "Liabilities" in the Corporation's financial statements.

Messrs. Merow and Whitson no longer defer their current compensation; however,
they have accrued deferred compensation (including earnings/losses) in respect
of the Corporation in the amounts of $22,873 and $242,697, respectively, as of
December 31, 2004.

Directors and officers of the Corporation are also directors, trustees and
officers of some or all of the other investment companies in the Seligman Group
of Funds.


Code of Ethics

The Manager, Seligman Advisors, Inc. ("Seligman Advisors"), their subsidiaries
and affiliates, and the Seligman Group of Funds have adopted a Code of Ethics
that sets forth the circumstances under which officers, directors and employees
(collectively, "Employees") are permitted to engage in personal securities
transactions. The Code of Ethics proscribes certain practices with regard to
personal securities transactions and personal dealings, provides a framework for
the reporting and monitoring of personal securities transactions by the
Manager's Director of Compliance, and sets forth a procedure of identifying, for
disciplinary action, those individuals who violate the Code of Ethics. The Code
of Ethics prohibits Employees (including all investment team members) from
purchasing or selling any security or an equivalent security that is being
purchased or sold by any client, or where the Employee intends, or knows of
another's intention, to purchase or sell a security on behalf of a client. The
Code also prohibits all Employees from acquiring securities in a private
placement or in an initial or secondary public offering unless an exemption has
been obtained from the Manager's Chief Compliance Officer.

The Code of Ethics prohibits (1) each portfolio manager or member of an
investment team from purchasing or selling any security within seven calendar
days either before or after the purchase or sale of the security by a client's
account (including investment company accounts) that the portfolio manager or
investment team manages; (2) each Employee from profiting from short-term
trading (a profitable purchase and sale or vice-versa within 60 days); and (3)
each member of an investment team from profiting from short sales of a security
if, at that time, any client managed by that team has a long position in that
security. Any profit realized pursuant to any of these prohibitions must be
disgorged to charitable organizations.

Employees are required, except under very limited circumstances, to engage in
personal securities transactions through a broker-dealer designated by the
Manager. All Employee personal securities transactions must be pre-cleared
through the Manager's compliance system. This system is designed to prevent
purchases of securities that would conflict with the interests of clients. All
Employees are also required to disclose all securities beneficially owned by
them upon commencement of employment and at the end of each calendar year.

A copy of the Code of Ethics is on public file with the SEC and can be reviewed
and copied at the SEC's Public Reference Room in Washington, DC, and that
information on the operation of the SEC's Public Reference Room may be obtained
by calling the SEC at 1-202-942-8090. A copy of the Code of Ethics is also
available on the EDGAR Database on the SEC's Internet site at www.sec.gov.
Copies of the Code of Ethics may also be obtained, after paying a duplicating
fee, by electronic request at the following E-mail address: publicinfo@sec.gov,
or by writing the SEC's Public Reference Section, Washington, DC 20549-0102.


Proxy Voting Policies

J. & W. Seligman & Co. Incorporated (the "Manager"), as the Corporation's
investment manager, will vote the proxies relating to the Corporation's
portfolio holdings.

Introduction. On behalf of the Corporation, the Manager votes the proxies of the
------------
securities held in the Corporation's portfolios in accordance with the Manager's
determination of what is in the best interests of the Corporation's
stockholders.

The financial interest of the stockholders of the Corporation is the primary
consideration in determining how proxies should be voted. The Manager has a
responsibility to analyze proxy issues and vote in a way consistent with those


                                       9



financial interests. In the case of social and political responsibility issues
which do not involve financial considerations, it is not possible to fairly
represent the diverse views of the Corporation's stockholders. As a result, the
Manager abstains from voting on these issues. Notwithstanding the above,
proposals seeking disclosure of certain matters relating to social and political
issues may be supported if such disclosure is not deemed to be unduly
burdensome.

The Proxy Voting Process. Proxies for securities held in the portfolios of the
------------------------
Corporation will be received, processed and voted by the Manager pursuant to the
guidelines (the "Guidelines") established by the Manager's Proxy Voting
Committee (the "Committee"). A description of the Guidelines can be found below.

The Committee has been established to set the Manager's policy and Guidelines,
to consider new corporate governance issues as they arise, to assist in
determining how the Manager will respond to such issues and to provide oversight
of the proxy voting process. The Committee currently consists of four members
including: the Manager's Chief Investment Officer (Chair), the Manager's Chief
Financial Officer and the Manager's General Counsel.

The Manager subscribes to a service offered by an independent third party that
provides research on the proposals to be acted upon at shareholder meetings and
to assist in the tracking, voting and recordkeeping of proxies. This service
does not offer voting recommendations.

Conflicts of Interests. The Manager's Chief Compliance Officer maintains a Proxy
----------------------
Watch List, which contains the names of those companies that may present the
potential for conflict in the voting process with the Manager, Seligman Advisors
or any Seligman affiliate thereof. For example, the Proxy Watch List will
include those portfolio companies for which the Manager separately manages
assets in private accounts or which are significant distributors of the Manager'
s products and services. As described below, proxy voting for these companies
will be subject to a higher level of consideration.

Deviations from Guidelines and Special Situations. The Manager recognizes that
-------------------------------------------------
it may not always be in the best interest of the stockholders of the Corporation
to vote in accordance with the Guidelines on a particular issue and in such
circumstances the Manager may deviate from the Guidelines. A member of the
Committee must approve any deviation from the Guidelines. Furthermore, a
majority of the Committee's members must approve any deviation of the Guidelines
for issuers included on the Proxy Watch List.

Similarly, one member of the Committee must approve the voting decision for
proposals of a unique nature requiring a case-by-case analysis. A majority of
the Committee's members must approve the voting decision for such proposals if
the issuer is included on the Proxy Watch List. The Manager may consider the
views of the management of a portfolio company, as well as the view of the
Manager's investment professionals when analyzing potential deviations from the
Guidelines and for those proposals requiring a case-by-case evaluation.

Guidelines Summary.  The Guidelines are briefly described as follows:
------------------

1.   The Manager votes with the recommendations of a company's board of
     directors on general corporate governance issues such as changing the
     company's name, ratifying the appointment of auditors and procedural
     matters relating to shareholder meetings.

2.   The Manager opposes, and supports the elimination of, anti-takeover
     proposals, including those relating to classified Boards, supermajority
     votes, poison pills, issuance of blank check preferred and establishment of
     classes with disparate voting rights.

3.   The Manager abstains from voting on issues relating to social and/or
     political responsibility, except for matters relating to disclosure issues
     if not deemed unduly burdensome for the company (e.g., political
     contributions).

4.   The Manager votes for stock option plans to increase the number of shares
     under existing stock option plans and other amendments to the terms of such
     plans; provided, that the overall dilution of all active stock option plans
     and stock purchase plans does not exceed 10% on a fully diluted basis and
     are otherwise considered to align the interest of the company with those of
     shareholders, e.g., all such plans must specifically prohibit repricing.

5.   The Manager generally votes with the recommendations of a company's board
     of directors on other matters relating to executive compensation, unless
     considered excessive.

6.   The Manager will withhold voting for the entire board of directors (or
     individual directors as the case may be) if: (a) less than 75% of the board
     is independent; (b) the board has a nominating or compensation committee of


                                       10



     which less than 75% of its members are independent; (c) the board has
     recommended shareholders vote for an anti-takeover device which the Manager
     votes against; or (d) the board has recommended a matter relating to a
     stock option plan or stock purchase plan which the Manager votes against.

7.   The Manager will vote for proposals relating to the authorization of
     additional common stock up to 5 times that currently outstanding.

8.   The Manager will vote for proposals to effect stock splits.

9.   The Manager will vote for proposals authorizing share repurchase programs.

10.  The Manager will vote against authorization to transact unidentified
     business at the meeting.

11.  Acquisitions, mergers, reorganizations, reincorporations and other similar
     transactions will be voted on a case-by-case basis.

12.  Proposals to amend a company's charter or by-laws (other than as identified
     above) will be voted on a case-by-case basis.

13.  The Manager will vote against all proposals where the company did not
     provide adequate information to make a decision.

14.  The Manager abstains from voting shares which have recently been sold or
     for which information was not received on a timely basis.

Information regarding how the Corporation voted proxies relating to portfolio
securities during the most recent 12-month period ended June 30 is available (i)
without charge upon request by calling toll free (800) 221-2450 in the US or
collect (212) 682-7600 outside the US and (ii) on the SEC's website at
www.sec.gov.


                          MANAGEMENT OF THE CORPORATION


The Manager

The Manager, subject to the control of the Corporation's Board of Directors,
manages the investments of the assets of the Corporation and administers its
business and other affairs pursuant to a management agreement (the "Management
Agreement"). The Manager also serves as investment manager to twenty-two other
US registered investment companies which, together with the Corporation, make up
the "Seligman Group of Funds." There are no other management-related service
contracts under which services are provided to the Corporation. No person or
persons, other than the Directors, officers or employees of the Manager and the
Corporation regularly advise the Corporation with respect to its investments.

The Manager is a successor firm to an investment banking business founded in
1864 which has provided investment services to individuals, families,
institutions and corporations. Mr. William C. Morris, Chairman of the Manager
and Chairman of the Board of Directors, owns a majority of the outstanding
voting securities of the Manager and is a controlling person of the Manager.

The Corporation pays the Manager a management fee for its services, calculated
daily and payable monthly, equal to a percentage of the daily net assets of the
Corporation. The method for determining this percentage, referred to as the
management fee rate, is set forth in the Prospectus. For the years ended
December 31, 2004, 2003 and 2002, the management fee amounted to $9,733,362,
$8,651,000 and $9,895,235, respectively, which was equivalent to an annual rate
of 0.41%, 0.41% and 0.41%, respectively, of the average daily net assets of the
Corporation.

As part of its services to the Corporation, the Manager provides the Corporation
with such office space, administrative and other services and executive and
other personnel as are necessary for the operations of the Corporation. The
Manager also provides senior management for Seligman Data Corp., a wholly-owned
subsidiary of the Corporation and certain of the other investment companies in
the Seligman Group of Funds. The Manager pays all of the compensation of the
Directors of the Corporation who are employees or consultants of the Manager and
its affiliates, of the officers and employees of the Corporation and of certain
executive officers of Seligman Data Corp.


                                       11



At the November 17 and 18, 2004 Board of Directors meeting, the Board
unanimously approved the continuance of the Management Agreement. In preparation
for the meeting, the Board requested and reviewed a wide variety of materials
from the Manager, including extensive performance and expense information for
other investment companies compiled by third parties, and the Independent
Directors conferred with their counsel at the meeting prior to voting. In their
determinations with respect to continuance of the Management Agreement, the
Board considered many factors, including, but not limited to: (1) comparative
performance information versus other similar investment companies and indices;
(2) the nature and quality of investment services and administrative services
rendered by the Manager; (3) payments received by the Manager from all sources
involving both the Corporation and all other Seligman investment companies; (4)
the costs borne by, and profitability of, the Manager and its affiliates in
providing services of all types to the Corporation and to all other Seligman
investment companies; (5) comparative fee and expense data versus other similar
investment companies; (6) the Manager's policies and practices regarding
allocation of portfolio transactions and soft dollars; (7) portfolio turnover of
the Corporation compared to other similar investment companies; (8) the
Manager's willingness to consider and, when desirable, implement organizational
and operational changes designed to improve investment results; and (9) fall-out
benefits which the Manager and its affiliates receive from managing the
Corporation. In its deliberations, the Board did not identify any particular
information that was all-important or controlling. Rather, the Board evaluated
all information available to it and determined that the overall arrangements
between the Corporation and the Manager, as reflected under the Management
Agreement, were fair and reasonable in light of the services performed, expenses
incurred and such other matters as the Board (and each Director) considered
relevant in the exercise of its (or such Director's) reasonable judgment.

Certain of the factors addressed by the Board in reaching its determination are
discussed in more detail below.

Portfolio Performance. The Board of Directors considered the performance of the
Corporation as compared to the performance of other comparable closed-end funds
and as compared to appropriate securities indices. Directors also considered the
nature and quality of the investment advice rendered by the Manager. In addition
to the information received by the Directors in connection with the November 17
and 18, 2004 Board of Directors meeting, the Board receives detailed information
related to performance of the Corporation at each Board meeting during the year.

Expenses of the Corporation. The Board also considered the management fee rate
paid by the Corporation to the Manager and the other expenses of the
Corporation, in comparison to both the quality of services provided and the fees
and expenses of funds with similar characteristics.

Costs of Providing Service and Profitability. The Directors reviewed information
concerning profitability of the Manager's investment advisory and investment
company activities and its financial condition based on results for 2003 and
2004 (through September 30) and estimates for full-year 2004. The information
considered by the Board of Directors included operating profit margin
information for the Manager's investment company business alone (i.e., excluding
results of its affiliates) and on a consolidated basis. The Board of Directors
also reviewed profitability data and estimated profitability data for each of
the Seligman investment companies. The Board of Directors reviewed certain
assumptions and methods of allocation used by the Manager in preparing
fund-specific profitability data. While the Manager believes that the methods of
allocation used were reasonable, there are limitations inherent in allocating
costs to multiple individual advisory products served by an organization such as
the Manager's where each of the advisory products draws on, and benefits from,
the pooled research of the organization.


                               Portfolio Managers

For purposes of this discussion, each of the Portfolio Manager and Co-Portfolio
Manager are referred to herein as a "Portfolio Manager" and collectively as the
"Portfolio Managers." The following table sets forth certain additional
information with respect to the Portfolio Managers of the Corporation. Unless
noted otherwise, all information is provided as of December 30, 2004.

Other Accounts Managed by Portfolio Managers. The table below identifies, for
each Portfolio Manager , the number of accounts managed (other than the
Corporation) and the total assets in such accounts, within each of the following
categories: registered investment companies, other pooled investment vehicles,
and other accounts. None of the accounts noted below has an advisory fee based
on performance of the account.


                                       12




---------------------------------------------------------------------------------------------------------
                           Registered Investment      Other Pooled Investment
    Portfolio Manager            Companies                   Vehicles                Other Accounts
---------------------------------------------------------------------------------------------------------
                                                                         
John B. Cunningham         4 Registered Investment     0 Pooled Investment        7 Other Accounts with
                           Companies with              Vehicles with $0 in        $1.375 in total assets
                           approximately $430          assets under management.   under management.
                           million in total assets
                           under management.
---------------------------------------------------------------------------------------------------------
Michael F. McGarry         2 Registered Investment     0 Pooled Investment        3 Other Accounts with
                           Companies with              Vehicles with $0 in        $270,000 in total assets
                           approximately $315          assets under management.   under management.
                           million in total assets
                           under management.
---------------------------------------------------------------------------------------------------------


Compensation/Material Conflicts of Interest. Set forth below is an explanation
of the structure of, and method(s) used to determine, portfolio manager
compensation. Also set forth below is an explanation of material conflicts of
interest that may arise between a portfolio manager's management of the
Corporation's investments and investments in other accounts.


Compensation:

As compensation for his responsibilities, including those relating to his
responsibilities as Chief Investment Officer of the Manager, Mr. Cunningham
received a base salary and fixed bonus for the year ended December 31, 2004.

For 2005, in addition to a base salary and minimum bonus, Mr. Cunningham is
entitled to (i) a performance bonus based on the weighted average pre-tax
investment performance of the Corporation and two other investment companies for
which Mr. Cunningham serves as portfolio manager as compared to the funds
constituting the Lipper Large-Cap Core Index (or otherwise agreed upon
appropriate group of funds) for 2005 and (ii) a potential discretionary bonus.

Mr. McGarry received a base salary and discretionary bonus for the year ended
December 31, 2004.

Discretionary bonuses for investment professionals are subjective and based on
numerous qualitative and quantitative factors. The factors, which have no
particular weightings and may apply differently from person to person may
include, among other things, the portfolio manager's relative investment
performance versus one or more competitive universes or benchmarks; the
Manager's overall profitability and profitability attributable to the assets
under management for the portfolio manager's investment team; and the portfolio
manager's support of marketing efforts.

The structure of a portfolio manager's compensation may be modified from time to
time reflect, among other things, changes in responsibilities or the competitive
environment.


Conflicts of Interest:

Actual or potential conflicts of interest may arise from the fact that the
Manager, and the Portfolio Manager and the Co-Portfolio Manager (collectively,
the "Portfolio Managers") of the Corporation have day-to-day management
responsibilities with respect to accounts of clients of the Manager other than
the Corporation ("Other Accounts"). The Manager has policies and procedures
intended to maintain or manage the conflicts of interest described below. There
is no guarantee that any such policies or procedures will detect each and every
situation in which a conflict of interest arises.

The Manager may receive higher compensation with respect to Other Accounts
(including accounts which are private investment funds or have performance or
higher fees paid to the Manager, or in which one or more portfolio managers have
direct or indirect personal interest in the receipt of such fees) than that
received with respect to the Corporation. This may create a potential conflict
of interest for the Manager or its Portfolio Managers by providing an incentive
to favor these Other Accounts when, for example, placing securities
transactions. In addition, the Manager could be viewed as having a conflict of
interest to the extent that the Manager or an affiliate has a


                                       13



proprietary investment in one or more Other Accounts, the Portfolio Managers
have personal investments, directly or indirectly, in one or more Other Accounts
or the Other Accounts are investment options in the Manager's employee benefit
plans. Potential conflicts of interest may arise with both the aggregation and
allocation of securities transactions and allocation of limited investment
opportunities. Allocations of aggregated trades, particularly trade orders that
were only partially completed due to limited availability, and allocation of
investment opportunities generally, could raise a potential conflict of
interest, as the Manager may have an incentive to allocate securities that are
expected to increase in value to favored accounts. Initial public offerings, in
particular, are frequently of very limited availability. The Manager may be
perceived as causing accounts it manages to participate in an offering to
increase the Manager's overall allocation of securities in that offering. A
potential conflict of interest also may be perceived to arise if transactions in
one account closely follow related transactions in a different account, such as
when a purchase increases the value of securities previously purchased by
another account or when a sale in one account lowers the sale price received in
a sale by a second account. Because the Manager manages accounts that engage in
short sales of securities of the type in which many clients may invest, the
Manager could be seen as harming the performance of certain client accounts
(i.e., those not engaging in short sale transactions) for the benefit of the
accounts engaging in short sales if the short sales cause the market value of
the securities to fall. Conversely, the Manager could be seen as benefiting
those accounts that may engage in short sales through the sale of securities
held by other clients to the extent the such sales reduce the cost to cover the
short positions.

The Manager and its affiliates may at times give advice or take action with
respect to accounts that differs from the advice given other accounts. A
particular security may be bought or sold only for certain clients even though
it could have been bought or sold for other clients at the same time. Likewise,
a particular security may be bought for one or more clients when one or more
other clients are selling the security. Simultaneous portfolio transactions in
the same security by multiple clients may tend to decrease the prices received
by clients for sales of such securities and increase the prices paid by clients
for purchases of such securities.

Employees of the Manager, including portfolio managers, may engage in personal
trading, subject to the Manager's Code of Ethics. In addition to the general
conflicts noted above, personal trading by employees may create apparent or
actual conflicts to the extent that one or more employees personally benefit or
appear to benefit from subsequent trading by clients in similar securities.

Because portfolio managers of the Manager manage multiple client accounts,
portfolio mangers may devote unequal time and attention to the portfolio
management of client accounts.

Securities Ownership. As of December 31, 2004, each of Messrs. Cunningham and
McGarry owned between $10,001 and $50,000 of the shares of the Corporation.


             Holdings of Preferred Stock, Common Stock and Warrants


As of February 28, 2005, holders of record of Preferred Stock totaled 416;
holders of record of Common Stock totaled 37,276; and holders of record of
Warrants totaled 106.


Control Persons

As of February 28, 2005, there was no person or persons who controlled the
Corporation, either through a significant ownership of shares or any other means
of control.


Principal Holders

As of February 28, 2005, the principal holders owned of record 5% or more of the
outstanding equity securities of the Corporation as follows:




                                                                                              Percentage
                                                                                                  of
                                 Name and Address                            Security        Shares Held
                                 ----------------                            --------        -----------
                                                                                      
          Cede & Co., Depository Trust/Central Delivery, 55 Water          Common Stock         42.81%
          Street, New York, NY 10041

          Cede & Co., Depository Trust/Central Delivery, 55 Water         Preferred Stock       83.73%
          Street, New York, NY 10041



                                       14





                                                                                              Percentage
                                                                                                  of
                                 Name and Address                            Security        Shares Held
                                 ----------------                            --------        -----------
                                                                                      
          Cede & Co., Depository Trust/Central Delivery, 55 Water            Warrants           56.53%
          Street, New York, NY 10041

          Dwight Goldthrope, PO Box 2778, Palm Beach, FL 33480               Warrants           11.74%

          Gerald William Ashfield, Wilmhurst Fletching, Fletching NR         Warrants           5.87%
          Uckfiled, East Sussex TN22 3YB United Kingdom



Management Ownership

As of February 28, 2005, the Directors and officers of the Corporation, as a
group, owned less than 1% of the Corporation's Common Stock. As of the same
date, the Directors or officers of the Corporation did not own any of the
Corporation's Preferred Stock or Warrants.


                    BROKERAGE ALLOCATION AND OTHER PRACTICES


Brokerage Selection and Brokerage Transactions

The Manager selects broker-dealers with the goal of obtaining "best execution".
The Manager will consider a full range and quality of a broker-dealer's
services, such as price, market familiarity, reliability, integrity, commission
rates, execution and settlement capabilities, ability to handle large orders,
financial condition, technological infrastructure and operational capabilities,
willingness to commit capital and the brokerage and research services provided
or made available by the broker-dealer. These brokerage and research services,
including supplemental investment research, analysis, and reports concerning
issuers, industries, and securities, may be useful to the Manager in connection
with its services to clients other than the Corporation. The relative weighting
given to any of the criteria mentioned above depends on a variety of factors
including the nature of the transaction, the market on which a particular trade
is being executed and the number of broker-dealers making a market in the
security to be traded.

Although sales of investment company shares will not be considered in selecting
broker-dealers to effect securities transactions, the Manager offers its
services primarily through the broker-dealer selling networks and expects that
nearly all broker-dealers that effect securities transactions for the Seligman
Funds will have a relationship with the Manager or its affiliates to distribute
shares of the investment companies or other investment products offered by the
Manager. The Manager ranks broker-dealers through an internal voting process
which considers the services provided by broker-dealers excluding investment
company or product sales by that broker-dealer.

In connection with any agency trades, the Manager determines the reasonableness
of the commissions to be paid to a broker-dealer based upon the quality of the
brokerage and research services provided, or arranged for, and as a result, may
select a broker-dealer whose commission costs may be higher than another would
have charged.

The Manager monitors and evaluates the performance and execution capabilities of
broker-dealers through which it places orders and periodically reviews its
policy with regard to negotiating commissions or mark-ups for the Seligman Funds
in light of current market conditions, statistical studies and other available
information.

In over-the-counter markets, the Corporation deals with primary market makers
unless a more favorable execution or price is believed to be obtainable. The
Corporation may buy securities from or sell securities to dealers acting as
principal, except dealers with which its directors and/or officers are
affiliated.

When two or more of the investment companies of the Seligman Group of Funds or
other investment advisory clients of the Manager desire to buy or sell the same
security at the same time, the securities purchased or sold are allocated by the
Manager in a manner believed to be equitable. There may be possible advantages
or disadvantages of such transactions with respect to price or the size of
positions readily obtainable or saleable.


Commissions

Total brokerage commissions (not including any spreads on principal transactions
on a net basis) paid by the Corporation during the years ended December 31,
2004, 2003 and 2002, were $3,163,744, $8,763,817 and $8,675,607, respectively.
Commissions declined in 2004 as a result of, among other factors, the reduction
in portfolio turnover noted above.


                                       15



Regular Broker-Dealers

During the year ended December 31, 2004, the Corporation acquired securities of
its regular brokers or dealers (as defined in Rule 10b-1 under the 1940 Act) or
of their parents. At December 31, 2004, the Corporation held securities of
Citigroup, Inc., the parent company of Salomon Smith Barney, with an aggregate
value of $69,544,457; held securities of Morgan Stanley Dean Witter, with an
aggregate value of $13,733,982; held securities of Merrill Lynch & Co.
Incorporated, the parent company of Merrill Lynch, Pierce Fenner & Smith,
Incorporated, with an aggregate value of $18,731,918; and held securities of
Goldman Sachs Group, with an aggregate value of $20,703,960.


                              FINANCIAL STATEMENTS

The Corporation's financial statements for the year ended December 31, 2004 are
incorporated into this SAI by reference to the 2004 Annual Report to
Stockholders of the Corporation, filed with the SEC pursuant to Section 30(b) of
the 1940 Act and the rules and regulations thereunder. The 2004 Annual Report
contains schedules of the Corporation's portfolio investments as of December 31,
2004 and certain other financial information as of this date. The Corporation
will furnish, without charge, a copy of such Annual Report, which includes the
Report of Independent Registered Public Accounting Firm, to any person who
requests a copy of the SAI.

The financial information of the Corporation included in the Prospectus under
the caption "Financial Highlights" and the financial statements that are
incorporated by reference in this SAI have been so included or incorporated by
reference in reliance on the reports of Deloitte & Touche LLP given upon their
authority as experts in auditing and accounting.


   CUSTODIAN, STOCKHOLDER SERVICE AGENT AND DIVIDEND PAYING AGENT AND EXPERTS

Custodian. State Street Bank and Trust Company, 801 Pennsylvania Avenue, Kansas
City, Missouri 64105, serves as custodian for the Corporation. It also
maintains, under the general supervision of the Manager, the accounting records
and determines the net asset value for the Corporation.

Stockholder Service Agent and Dividend Paying Agent. Seligman Data Corp., a
wholly-owned subsidiary of the Corporation, and certain other investment
companies of the Seligman Group of Funds, acts as the stockholder service agent
and dividend paying agent and performs, at cost, certain recordkeeping functions
for the Corporation, maintains the records of stockholder accounts and furnishes
dividend paying, redemption and related services.

Independent Registered Public Accounting Firm. Deloitte & Touche LLP, Two World
Financial Center, New York, New York 10281, serves as the Independent Registered
Public Accounting Firm for the Corporation and in such capacity audits the
Corporation's annual financial statements and financial highlights.


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      REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON FINANCIAL
                                  HIGHLIGHTS -
              SENIOR SECURITIES - $2.50 CUMULATIVE PREFERRED STOCK


To the Board of Directors and Security Holders of
         Tri-Continental Corporation:

We have previously audited, in accordance with the standards of the Public
Company Accounting Oversight Board (United States), the statements of assets and
liabilities and the statements of capital stock and surplus of Tri-Continental
Corporation, including the portfolios of investments, as of December 31 for each
of the ten years in the period ended December 31, 2004, and the related
statements of operations, the statements of changes in net investment assets,
and the financial highlights for each of the years then ended (none of which are
presented herein); and we expressed unqualified opinions on those financial
statements.

In our opinion, the information appearing on page 8 of the Prospectus, under the
caption "Financial Highlights - Senior Securities - $2.50 Cumulative Preferred
Stock", for each of the ten years in the period ended December 31, 2004 is
fairly stated in all material respects in relation to the financial statements
from which it has been derived.


DELOITTE & TOUCHE LLP

New York, New York
February 23, 2005


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