SELIGMAN HENDERSON CO
13F-NT, 2000-02-08
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 13F-NT
     INFORMATION REQUIRED OF INSTITUTIONAL INVESTMENT MANAGERS PURSUANT TO
   SECTION 13(f) OF THE SECURITIES EXCHANGE ACT OF 1934 AND RULES THEREUNDER

                   Report for the Quarter Ended December 31, 2000.
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If Amended report check here:

Seligman Henderson Co.
Name of Institutional Investment Manager

100 Park Avenue                     New York         New York          10017
Business Address (Street)          (City)           (State)            (Zip)

Lawrence P. Vogel, Treasurer                                    (212) 850-1864
Name, Title, and Phone No. of Person Duly Authorized to Submit This Report.
- -----------------------------------ATTENTION----------------------------------
           Intentional    misstatements or omissions of facts constitute Federal
                          Criminal Violations.
                    See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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       The  institutional  investment  manager  submitting  this  Form  and  its
attachments  and the  person  by whom it is  signed  represent  hereby  that all
information  contained therein is true,  correct and complete.  It is understood
that all required items,  statements and schedules are considered integral parts
of this  Form and that  the  submission  of any  amendment  represents  that all
unamended items,  statements and schedules remain true,  correct and complete as
previously submitted.
       Pursuant to the  requirements  of  Securities  Exchange Act of 1934,  the
undersigned institutional investment manager has caused this report to be signed
on its  behalf  in the City of New York and State of New York on the 8th day of
February, 2000.

                                      Seligman Henderson Co.
                                     (Name of Institutional Investment Manager)

                                      /s/ Lawrence P. Vogel
                                     ------------------------------------
             (Manual Signature of Person Duly Authorized to submit This Report)


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                             Seligman Henderson Co.
                                    Form 13F-NT


Form 13F for the Quarter ended December 31, 2000, has been filed by J. & W
Seligman & Co. Incorporated on behalf of the above corporation.


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