UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 14A

           Proxy Statement Pursuant to Section 14(a) of the Securities
                      Exchange Act of 1934 (Amendment No. )

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                           TRI-CONTINENTAL CORPORATION
                (Name of Registrant as Specified in Its Charter)

    (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

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                           Tri-Continental Corporation

                         an investment you can live with


                                                                 August 26, 2008

Dear Tri-Continental Stockholder:

Enclosed  is a proxy  statement  seeking  your vote to approve a new  Investment
Management Services Agreement  ("Advisory  Agreement")  between  Tri-Continental
Corporation and RiverSource  Investments,  LLC  ("RiverSource") and to elect ten
new directors.  The proxy statement contains important information,  and we urge
you to read it carefully.

This proxy  statement is being sent,  and your vote  requested,  because J. & W.
Seligman & Co. Incorporated ("Seligman"),  Tri-Continental's manager, has agreed
to be acquired by  RiverSource  in a transaction  that is likely to close in the
fourth quarter of 2008.  Consummation of the acquisition of Seligman will result
in  an  assignment  and  automatic  termination  of  Tri-Continental's   current
management  agreement  with  Seligman.   Tri-Continental's  Board  of  Directors
approved   the   Advisory   Agreement   as  being  in  the  best   interests  of
Tri-Continental,  and recommended it to stockholders  for their approval,  after
careful consideration.

A certain  group of  stockholders  (the "Group")  declared  their intent to vote
against the approval of the Advisory Agreement and to solicit other stockholders
to vote  against  approval.  Given the  holdings of these  stockholders  and the
voting patterns in previous proxy contests,  the Board believed that it would be
very difficult, if not impossible, for Tri-Continental to obtain approval of the
Advisory Agreement absent the agreement of these stockholders.

Tri-Continental and the Group entered into a settlement  agreement on August 19,
2008  under  which the  Group  agreed to vote in  accordance  with your  Board's
recommendations  to  approve  the  Advisory  Agreement  and  to  elect  ten  new
directors.  Tri-Continental agreed that following the acquisition of Seligman by
RiverSource,  and  subject to certain  conditions,  it would  conduct two tender
offers  provided that the Advisory  Agreement is approved by stockholders at the
upcoming special meeting. The terms of the agreement, including the terms of the
proposed tender offers,  are summarized in the enclosed proxy statement on pages
10 and 11.

This agreement meets a number of important  goals:  First, in recognition of the
strong preference of many long-term stockholders, Tri-Continental would continue
to operate as a closed-end fund, as it has since 1929; Second, Tri Continental's
investment  objective  would remain  unchanged;  and Third,  the Group and other
stockholders  would be provided with an opportunity to reduce or eliminate their
holdings at a small discount to net asset value, although the first tender offer
will not be attractive to most individual stockholders for the reasons discussed
in the proxy statement.

There will be no obligation to participate in either tender offer.  If no action
is taken on your  part,  the number of shares  you own of  Tri-Continental  will
remain  unchanged.  The  terms  and  conditions  of the  tender  offers  will be
described in the tender offer documents.

Stockholders  have  repeatedly  indicated  their  support for  Tri-Continental's
closed-end  structure.  The Board  believes  that the  closed-end  structure  of
Tri-Continental  will be maintained as a result of the measures  described above
and in the enclosed proxy statement.

Sincerely,



William C. Morris                                             Brian T. Zino

Chairman                                                      President


The tender offers  referred to herein,  if made, will be made only by the Offers
to Repurchase and related Letters of Transmittal. Stockholders should read these
documents  carefully when they become available,  free of charge, at the website
of  the  Securities  and  Exchange  Commission  (www.sec.gov).   The  Offers  to
Repurchase  will not be made to, nor will tenders be accepted  from or on behalf
of,  holders of shares in any  jurisdiction  in which  making or  accepting  the
Offers to Repurchase would violate that jurisdiction's laws.