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SUPPLEMENT TO THE PROSPECTUS OF
DEAN WITTER SELECT DIMENSIONS INVESTMENT SERIES
DATED FEBRUARY 28, 1995
The last sentence of the section of the Prospectus entitled "The Fund and
its Management" appearing at page ten of the Prospectus is amended to read as
follows:
The Investment Manager has undertaken to assume all operating
expenses of each Portfolio (except for any brokerage fees and a portion
of organizational expenses) and to waive the compensation provided for
each Portfolio in its Investment Management Agreement with the Fund to
the extent that such expenses and compensation exceed 0.50% of the daily
net assets of the Portfolio for the period from January 1, 1996 through
December 31, 1996 or such time as the pertinent Portfolio has $50
million of net assets, whichever occurs first. As of December 29, 1995,
the net assets of the Dividend Growth Portfolio exceeded $50 million.
December 29, 1995
