Supplement, dated February 28, 2008,
                      to the Prospectus, dated May 1, 2007,
                                       for
                 Tri-Continental Corporation (the "Corporation")


Capitalized terms without definitions have the same meaning as in the
Corporation's Prospectus. These changes are effective March 3, 2008.

The following hereby supersedes and replaces sixth and seventh paragraphs under
the section entitled "MANAGEMENT OF THE CORPORATION -- The Manager":

The Corporation's portfolio is managed by the Manager's Core/Growth Investment
Team, of which John B. Cunningham is co-head. Mr. Cunningham, a Managing
Director and Chief Investment Officer of Seligman, is Vice President and
Portfolio Manager of the Corporation. He is also Vice President and Portfolio
Manager of Seligman Common Stock Fund, Inc. and Seligman Income and Growth Fund,
Inc., Vice President and Co-Portfolio Manager of Seligman TargetHorizon ETF
Portfolios, Inc., and Vice President of Seligman Portfolios, Inc. ("SPI") and
Portfolio Manager of its Seligman Common Stock Portfolio. Prior to joining the
Manager in 2004, 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.

Erik J. Voss, a Managing Director of the Manager and co-head of Seligman's
Core/Growth Team, is Co-Portfolio Manager of the Corporation. In addition to his
responsibilities in respect of the Corporation, Mr. Voss is Vice President and
Portfolio Manager of Seligman Capital Fund, Inc. and Seligman Growth Fund, Inc.,
Vice President of SPI and Portfolio Manager of its Seligman Capital Portfolio
and Co-Portfolio Manager of Seligman Common Stock Portfolio, Co-Portfolio
Manager of Seligman Common Stock Fund, Inc. and Seligman Income and Growth Fund,
Inc., and portfolio manager of one other registered investment company. Prior to
joining the Manager in 2006, Mr. Voss was a portfolio manager at Wells Capital
Management Incorporated from January 2005 through March 2006, and prior thereto,
Strong Capital Management, Inc. from October 2000 through January 2005.

Mr. Cunningham is the lead Portfolio Manager of the Corporation and primarily
responsible for the composition of the Corporation's portfolio. Mr. Voss
provides advice, analysis and recommendations to Mr. Cunningham and may also
make investment decisions for the Corporation.

The Corporation's SAI provides additional information about the compensation of
the individuals named above (the "Portfolio Managers"), other accounts managed
by the Portfolio Managers and the Portfolio Managers' ownership of the
securities of the Corporation.



                      Supplement, dated February 28, 2008,
         to the Statement of Additional Information, dated May 1, 2007,
                                       for
                 Tri-Continental Corporation (the "Corporation")


Capitalized terms without definitions have the same meaning as in the
Corporation's Statement of Additional Information. These changes are effective
March 3, 2008.

The following is hereby added to the table under the section entitled "Portfolio
Manager -- Other Accounts Managed by Portfolio Managers" (table headings have
been restated for your convenience):



-----------------------------------------------------------------------------------------------------------
                               Other Registered             Other Pooled
  Portfolio Manager          Investment Companies        Investment Vehicles          Other Accounts
-----------------------------------------------------------------------------------------------------------
                                                                         
 Erik J. Voss                7 Other Registered        0 Other Pooled             20 Other Accounts with
                             Investment Companies      Investment Vehicles as     approximately $245.8
                             with approximately $1.3   of December 31, 2007.      million in total assets
                             billion in net assets                                under management as of
                             under management as of                               December 31, 2007.
                             December 31, 2007.
-----------------------------------------------------------------------------------------------------------


The following is hereby added to the section entitled "Portfolio Manager --
Compensation":

For the year ended December 31, 2007, as compensation for his responsibilities,
Mr. Voss received (i) a fixed base salary; (ii) a fixed minimum bonus; and (iii)
a bonus based on the investment performance of two other Seligman investment
companies for which Mr. Voss serves as Portfolio Manager (the "Voss Funds") as
compared to the funds constituting the Lipper averages that include the Voss
Funds.

The following is hereby added to the section entitled "Portfolio Manager --
Securities Ownership":

As of December 31, 2007, Mr. Voss did not own any shares of the Corporation.