PUTNAM MONEY MARKET FUND

               Prospectus Supplement dated July 17, 1995 to 
       Defined Contribution Plans Prospectus dated December 1, 1994 

The shareholders of the Fund have approved changes to the Fund's
fundamental investment restriction with respect to investments in
restricted securities.  As a result, the first paragraph of the
section of the Prospectus entitled "How objective is pursued -
Limiting investment risk" is replaced by the following:

LIMITING INVESTMENT RISK

SPECIFIC INVESTMENT RESTRICTIONS HELP THE FUND LIMIT INVESTMENT
RISKS FOR ITS SHAREHOLDERS.  THESE RESTRICTIONS PROHIBIT THE FUND
FROM INVESTING MORE THAN:  (a) 5% of its total assets in the
securities of any one issuer (other than obligations issued or
guaranteed by the U.S. government or its agencies or
instrumentalities);* (b) 5% of its total assets in companies
that, together with any predecessors, have been in operation less
than three years;* (c) 10% of its current net assets in
securities restricted as to resale, excluding restricted
securities that have been determined by the Fund's Trustees (or
the person designated by them to make such determinations) to be
readily marketable;* or (d) 15% of its net assets in any
combination of securities that are not readily marketable, in
securities restricted as to resale (excluding securities
determined by the Fund's Trustees (or the person designated by
the Fund's Trustees to make such determinations) to be readily
marketable), and in repurchase agreements maturing in more than
seven days.  The Fund has not invested more than 10% of its net
assets in the types of securities listed in item (d) and has no
current intention of doing so.



                                                       19588 7/95