Supplement, dated July 28, 1998, to the prospectus, dated May 1, 1998,
of
Seligman Common Stock Fund, Inc. (the "Fund")
Effective immediately, the following supersedes and replaces the
information contained in the second paragraph set forth in the Fund's prospectus
under "Management Services--Portfolio Management."
Rodney D. Collins, Vice President, Investment Officer of the Manager,
is Co-Portfolio Manager of the Fund. Mr. Collins is also Co-Portfolio
Manager of Seligman Income Fund, Inc., the Seligman Common Stock Portfolio
and Seligman Income Portfolio of Seligman Portfolios, Inc. and
Tri-Continental Corporation. Mr. Collins joined the Manager in 1992 as an
investment associate.
EQCSS1-7/98
