SCHEDULE 14A

                                 (RULE 14a-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION

           Proxy Statement Pursuant to Section 14(a) of the Securities
                              Exchange Act of 1934

Filed by the Registrant |X|

Filed by a party other than the Registrant |_|


Check the appropriate box:

|_|   Preliminary proxy statement.
|_|   Definitive proxy statement.
|X|   Definitive additional materials.
|_|   Soliciting material under Rule 14a-12.
|_|   Confidential, for use of the Commission only (as permitted by Rule
      14a-6(e)(2)).

                           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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      paid previously. Identify the previous filing by registration statement
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(1)   Amount Previously Paid:

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                           Tri-Continental Corporation
                         an investment you can live with

                                                              September 18, 2006

Dear Valued Stockholder:

We have not yet received your vote for Tri-Continental Corporation's September
28th Special Meeting. Time is running out. Every vote counts. Please vote today.

We urge you to send a clear message to the hedge funds that you do not want them
to radically alter your investment. We believe their ultimate intention is to
open-end or liquidate Tri-Continental, despite their recent claims to the
contrary.

Tri-Continental's strong investment results continue. Total return, based on
market price, over the past three years exceeds 40%. Equally impressive,
Tri-Continental's year-to-date, one-, and three-year investment results on both
NAV and market price surpass the S&P 500.

                        Return       Average Annual Returns   Cumulative Return
                     Year-to-Date     1 Year        3 Years       3 Years
       ------------------------------------------------------------------------
       Market Price      12.6%         14.7%          12.4%         41.8%
       NAV                8.3          10.7           11.4          38.3
       S&P 500            7.2           9.6           11.1          37.3

       Based on total return as of Friday, September 15, 2006

Please take a minute to sign and date the enclosed WHITE proxy card and return
it in the postage paid envelope provided. If you would prefer to cast your vote
with a live person, please contact Georgeson, our proxy firm, at 888-219-8293.

Your vote is critical. We need your help, regardless of the number of shares
owned, to defeat these hedge funds and protect your investment. Please act
today.

Sincerely,


/s/ William C. Morris                               /s/ Brian T. Zino

William C. Morris                                   Brian T. Zino
Chairman                                            President

P.S. We anticipate capital gain payments will resume no later than next year.
With favorable market conditions, the remaining tax-loss carry-forward of only
$0.65 should be eliminated shortly.




                           Tri-Continental Corporation
                         an investment you can live with

                                                              September 18, 2006

Dear Valued Stockholder:

Have you voted Tri-Continental's WHITE proxy card? If you have, thank you. If
not, there is not much time left before Tri-Continental's September 28th Special
Meeting. Every vote counts. Please vote today.

We urge you to send a clear message to the hedge funds that you do not want them
to radically alter your investment. We believe their ultimate intention is to
open-end or liquidate Tri-Continental, despite their recent claims to the
contrary.

Tri-Continental's strong investment results continue. Total return, based on
market price, over the past three years exceeds 40%. Equally impressive,
Tri-Continental's year-to-date, one-, and three-year investment results on both
NAV and market price surpass the S&P 500.

                        Return       Average Annual Returns   Cumulative Return
                     Year-to-Date     1 Year        3 Years       3 Years
       ------------------------------------------------------------------------
       Market Price      12.6%         14.7%          12.4%         41.8%
       NAV                8.3          10.7           11.4          38.3
       S&P 500            7.2           9.6           11.1          37.3

       Based on total return as of Friday, September 15, 2006

Please take a minute to sign and date the enclosed WHITE proxy card and return
it in the postage paid envelope provided. If you would prefer to cast your vote
with a live person, please contact Georgeson, our proxy firm, at 888-219-8293.

Your vote is critical. We need your help, regardless of the number of shares
owned, to defeat these hedge funds and protect your investment. Please act
today.

Sincerely,


/s/ William C. Morris                                /s/ Brian T. Zino

William C. Morris                                    Brian T. Zino
Chairman                                             President

P.S. We anticipate capital gain payments will resume no later than next year.
With favorable market conditions, the remaining tax-loss carry-forward of only
$0.65 should be eliminated shortly.