DREYFUS MASSACHUSETTS MUNICIPAL MONEY MARKET FUND
497, 1995-12-06
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PROSPECTUS                                                      MAY 31, 1995

              DREYFUS MASSACHUSETTS MUNICIPAL MONEY MARKET FUND
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          DREYFUS MASSACHUSETTS MUNICIPAL MONEY MARKET FUND (THE "FUND") IS
AN OPEN-END, NON-DIVERSIFIED, MANAGEMENT INVESTMENT COMPANY, KNOWN AS A MONEY

MARKET MUTUAL FUND. ITS GOAL IS TO PROVIDE YOU WITH AS HIGH A LEVEL OF
CURRENT INCOME EXEMPT FROM FEDERAL AND MASSACHUSETTS INCOME TAXES AS IS
CONSISTENT WITH THE PRESERVATION OF CAPITAL AND THE MAINTENANCE OF LIQUIDITY.
          YOU CAN INVEST, REINVEST OR REDEEM SHARES AT ANY TIME WITHOUT
CHARGE OR PENALTY. THE FUND PROVIDES FREE REDEMPTION CHECKS, WHICH YOU CAN
USE IN AMOUNTS OF $500 OR MORE FOR CASH OR TO PAY BILLS. YOU CONTINUE TO EARN

INCOME ON THE AMOUNT OF THE CHECK UNTIL IT CLEARS. YOU CAN PURCHASE OR REDEEM

SHARES BY TELEPHONE USING DREYFUS TELETRANSFER.
          THE DREYFUS CORPORATION PROFESSIONALLY MANAGES THE FUND'S
PORTFOLIO.
          AN INVESTMENT IN THE FUND IS NEITHER INSURED NOR GUARANTEED BY THE
U.S. GOVERNMENT. THERE CAN BE NO ASSURANCE THAT THE FUND WILL BE ABLE TO
MAINTAIN A STABLE NET ASSET VALUE OF $1.00 PER SHARE.
          THIS PROSPECTUS SETS FORTH CONCISELY INFORMATION ABOUT THE FUND
THAT YOU SHOULD KNOW BEFORE INVESTING. IT SHOULD BE READ AND RETAINED FOR
FUTURE REFERENCE.

          THE STATEMENT OF ADDITIONAL INFORMATION, DATED MAY 31, 1995, WHICH
MAY BE REVISED FROM TIME TO TIME, PROVIDES A FURTHER DISCUSSION OF CERTAIN
AREAS IN THIS PROSPECTUS AND OTHER MATTERS WHICH MAY BE OF INTEREST TO SOME
INVESTORS. IT HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE COMMISSION AND
IS INCORPORATED HEREIN BY REFERENCE. FOR A FREE COPY, WRITE TO THE FUND AT
144 GLENN CURTISS BOULEVARD, UNIONDALE, NEW YORK 11556-0144, OR CALL
1-800-645-6561. WHEN TELEPHONING, ASK FOR OPERATOR 666.

          MUTUAL FUND SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR
GUARANTEED OR ENDORSED BY, ANY BANK, AND ARE NOT FEDERALLY INSURED BY THE
FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY
OTHER AGENCY.

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                                 TABLE OF CONTENTS
                                                                       PAGE

           ANNUAL FUND OPERATING EXPENSES....................             3
           CONDENSED FINANCIAL INFORMATION...................             3
           YIELD INFORMATION.................................             4
           DESCRIPTION OF THE FUND...........................             4
           MANAGEMENT OF THE FUND............................             9
           HOW TO BUY FUND SHARES............................            10
           SHAREHOLDER SERVICES..............................            12
           HOW TO REDEEM FUND SHARES.........................            14
           SHAREHOLDER SERVICES PLAN.........................            17
           DIVIDENDS, DISTRIBUTIONS AND TAXES ...............            17
           GENERAL INFORMATION ..............................            19

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THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
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This Page Intentionally Left Blank
         Page 2
                           ANNUAL FUND OPERATING EXPENSES
                       (as a percentage of average daily net assets)

<TABLE>
<S>                                                                                  <C>   <C>
Management Fees....................................................................  .50%

Other Expenses ....................................................................  .24%

Total Fund Operating Expenses......................................................  .74%

</TABLE>
<TABLE>
         EXAMPLE:                                       1 YEAR    3 YEARS    5 YEARS        10 YEARS
<S>                                                     <C>           <C>     <C>            <C>

           You would pay the following expenses on
           a $1,000 investment, assuming (1) 5%
           annual return and (2) redemption at the
           end of each time period:                     $8            $24     $41            $92

</TABLE>

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          THE AMOUNTS LISTED IN THE EXAMPLE SHOULD NOT BE CONSIDERED AS
REPRESENTATIVE OF PAST OR FUTURE EXPENSES AND ACTUAL EXPENSES MAY BE GREATER
OR LESS THAN THOSE INDICATED. MOREOVER, WHILE THE EXAMPLE ASSUMES A 5% ANNUAL
RETURN, THE FUND'S ACTUAL PERFORMANCE WILL VARY AND MAY RESULT IN AN ACTUAL
RETURN GREATER OR LESS THAN 5%.
- -----------------------------------------------------------------------------

          The purpose of the foregoing table is to assist you in
understanding the various costs and expenses borne by the Fund, and therefore
indirectly by investors, the payment of which will reduce investors' return
on an annual basis. The information in the foregoing table does not reflect
any fee waivers or expense reimbursement arrangements that may be in effect.
You can purchase Fund shares without charge directly from the Fund's
distributor; you may be charged a nominal fee if you effect transactions in
Fund shares through a securities dealer, bank or other financial institution.
See "Management of the Fund" and "Shareholder Services Plan."

                        CONDENSED FINANCIAL INFORMATION

          The information in the following table has been audited by Ernst &
Young LLP, the Fund's independent auditors, whose report thereon appears in
the Statement of Additional Information. Further financial data and related
notes are included in the Statement of Additional Information, available upon
request.

                       FINANCIAL HIGHLIGHTS

          Contained below is per share operating performance data for a share
of beneficial interest outstanding, total investment return, ratios to
average net assets and other supplemental data for each year indicated. This
information has been derived from the Fund's financial statements.


<TABLE>
<CAPTION>

                                                                             YEAR ENDED JANUARY 31,

                                                                        -----------------------------------

PER SHARE DATA:
                                                                   1992(1)      1993       1994        1995

                                                                    -------    -------     -------     -------
<S>                                                                <C>         <C>         <C>         <C>


    Net asset value, beginning of year.........................    $1.0000     $1.0002     $1.0000     $1.0000
                                                                   -------     -------     -------     -------

    INVESTMENT OPERATIONS:
    Investment income-net.....................................       .0399       .0275       .0209       .0266

    Net realized gain (loss) on investments....................      .0002         --          --       (.0002)
                                                                     ------      -------     -------    -------

      TOTAL FROM INVESTMENT OPERATIONS.........................      .0401       .0275       .0209       .0264
                                                                    -------     -------      -------    -------


    DISTRIBUTIONS:
    Dividends from investment income-net......................      (.0399)     (.0275)     (.0209)     (.0266)

    Dividends from net realized gain on investments............       --        (.0002)        --           --
                                                                     -------    -------     -------      -------

      TOTAL DISTRIBUTIONS......................................     (.0399)     (.0277)     (.0209)     (.0266)
                                                                    --------    -------     -------     -------

    Net asset value, end of year...............................    $1.0002     $1.0000     $1.0000     $ .9998
                                                                  ========    ========    =======      =======
TOTAL INVESTMENT RETURN                                               4.41%(2)    2.81%       2.12%       2.70%

RATIOS/SUPPLEMENTAL DATA:
    Ratio of expenses to average net assets....................        --          .19%        .28%        .28%

    Ratio of net investment income to average net assets.......       4.20%(2)    2.74%       2.09%       2.73%

    Decrease reflected in above expense ratios due to undertakings
      by The Dreyfus Corporation...............................       1.04%(2)     .66%        .53%        .46%

    Net Assets, end of year (000's Omitted)....................     $57,520     $72,383     $87,864    $150,811

- ---------------------------------
(1)  From March 1, 1991 (commencement of operations) to January 31, 1992.
(2)  Annualized.
</TABLE>

             Page 3
                             YIELD INFORMATION
          From time to time, the Fund advertises its yield and effective
yield. Both yield figures are based on historical earnings and are not
intended to indicate future performance. It can be expected that these yields
will fluctuate substantially. The yield of the Fund refers to the income
generated by an investment in the Fund over a seven-day period (which period
will be stated in the advertisement). This income is then annualized. That
is, the amount of income generated by the investment during that week is
assumed to be generated each week over a 52-week period and is shown as a
percentage of the investment. The effective yield is calculated similarly,
but, when annualized, the income earned by an investment in the Fund is
assumed to be reinvested. The effective yield will be slightly higher than
the yield because of the compounding effect of this assumed reinvestment. The
Fund's yield and effective yield may reflect absorbed expenses pursuant to
any undertaking that may be in effect. See "Management of the Fund."
          Tax equivalent yield is calculated by determining the pre-tax yield
which, after being taxed at a stated rate, would be equivalent to a stated
yield or effective yield calculated as described above.
          Yield information is useful in reviewing the Fund's performance,
but because yields will fluctuate, such information under certain conditions
may not provide a basis for comparison with domestic bank deposits, other
investments which pay a fixed yield for a stated period of time, or other
investment companies which may use a different method of computing yield.
          Comparative performance information may be used from time to time
in advertising or marketing the Fund's shares, including data from Lipper
Analytical Services, Inc., Bank Rate Monitortrademark, N. Palm Beach, Fla.
33408, IBC/Donoghue's Money Fund Report, Morningstar, Inc. and other industry
publications.
                           DESCRIPTION OF THE FUND
INVESTMENT OBJECTIVE - The Fund's goal is to provide you with as high a
level of current income exempt from Federal and Massachusetts income taxes as
is consistent with the preservation of capital and the maintenance of
liquidity. To accomplish this goal, the Fund invests primarily in the debt
securities of the Commonwealth of Massachusetts, its political subdivisions,
authorities and corporations, the interest from which is, in the opinion of
bond counsel to the issuer, exempt from Federal and Massachusetts income
taxes (collectively, "Massachusetts Municipal Obligations"). To the extent
acceptable Massachusetts Municipal Obligations are at any time unavailable
for investment by the Fund, the Fund will invest temporarily in other debt
securities the interest from which is, in the opinion of bond counsel to the
issuer, exempt from Federal, but not Commonwealth of Massachusetts, income
tax. The Fund's investment objective cannot be changed without approval by
the holders of a majority (as defined in the Investment Company Act of 1940)
of the Fund's outstanding voting shares. There can be no assurance that the
Fund's investment objective will be achieved. Securities in which the Fund
invests may not earn as high a level of current income as long-term or lower
quality securities which generally have less liquidity, greater market risk
and more fluctuation in market value.
MUNICIPAL OBLIGATIONS - Debt securities the interest from which is, in the
opinion of bond counsel to the issuer, exempt from Federal income tax
("Municipal Obligations") generally include debt obligations issued to obtain
funds for various public purposes as well as certain industrial development
bonds issued by or on behalf of public authorities. Municipal Obligations are
classified as general obligation bonds, revenue bonds and notes. General
obligation bonds are secured by the issuer's pledge of its faith, credit and
taxing power for the payment of principal and interest. Revenue bonds are
payable from the revenue derived from a particular facility or class of
facilities or, in some cases, from the proceeds of a special excise or other
specific revenue source, but not from the general taxing power. Tax exempt
industrial development bonds, in most cases, are revenue bonds that do not
carry the pledge of the credit of the issuing municipality, but generally are
guaranteed by the corporate entity on whose behalf they
              Page 4
are issued. Notes are short-term instruments which are obligations of the
issuing municipalities or agencies and are sold in anticipation of a bond
sale, collection of taxes or receipt of other revenues. Municipal Obligations
include municipal lease/purchase agreements which are similar to installment
purchase contracts for property or equipment issued by municipalities.
Municipal Obligations bear fixed, floating or variable rates of interest.
MANAGEMENT POLICIES - It is a fundamental policy of the Fund that it will
invest at least 80% of the value of its net assets (except when maintaining a
temporary defensive position) in Municipal Obligations. Under normal
circumstances, at least 65% of the value of the Fund's net assets will be
invested in Massachusetts Municipal Obligations and the remainder may be
invested in securities that are not Massachusetts Municipal Obligations and
therefore may be subject to Massachusetts income taxes. See "Risk
Factors-Investing in Massachusetts Municipal Obligations" below, and
"Dividends, Distributions and Taxes."
          The Fund seeks to maintain a net asset value of $1.00 per share for
purchases and redemptions. To do so, the Fund uses the amortized cost method
of valuing its securities pursuant to Rule 2a-7 under the Investment Company
Act of l940, certain requirements of which are summarized as follows. In
accordance with Rule 2a-7, the Fund will maintain a dollar-weighted average
portfolio maturity of 90 days or less, purchase only instruments having
remaining maturities of 13 months or less and invest only in U.S. dollar
denominated securities determined in accordance with procedures established
by the Board of Trustees to present minimal credit risks and which are rated
in one of the two highest rating categories for debt obligations by at least
two nationally recognized statistical rating organizations (or one rating
organization if the instrument was rated only by one such organization) or,
if unrated, are of comparable quality as determined in accordance with
procedures established by the Board of Trustees. The nationally recognized
statistical rating organizations currently rating instruments of the type the
Fund may purchase are Moody's Investors Service, Inc. ("Moody's"), Standard &
Poor's Corporation ("S&P") and Fitch Investors Service, Inc. ("Fitch") and
their rating criteria are described in Appendix B to the Fund's Statement of
Additional Information. For further information regarding the amortized cost
method of valuing securities, see "Determination of Net Asset Value" in the
Fund's Statement of Additional Information. There can be no assurance that
the Fund will be able to maintain a stable net asset value of $1.00 per
share.
          The Fund may invest more than 25% of the value of its total assets
in Municipal Obligations which are related in such a way that an economic,
business or political development or change affecting one such security also
would affect the other securities; for example, securities the interest upon
which is paid from revenues of similar types of projects. As a result, the
Fund may be subject to greater risk as compared to a fund that does not
follow this practice.
          From time to time, the Fund may invest more than 25% of the value
of its total assets in industrial development bonds which, although issued by
industrial development authorities, may be backed only by the assets and
revenues of the non-governmental users. Interest on Municipal Obligations
(including certain industrial development bonds) which are specified private
activity bonds, as defined in the Internal Revenue Code of 1986, as amended
(the "Code"), issued after August 7, 1986, while exempt from Federal income
tax, is a preference item for the purpose of the alternative minimum tax.
Where a regulated investment company receives such interest, a proportionate
share of any exempt-interest dividend paid by the investment company may be
treated as such a preference item to shareholders. The Fund may invest
without limitation in such Municipal Obligations if The Dreyfus Corporation
determines that their purchase is consistent with the Fund's investment
objective. See "Other Investment Considerations" below.

          The Fund also may purchase floating and variable rate demand notes
and bonds, which are tax exempt obligations ordinarily having stated
maturities in excess of 13 months, but which permit the holder to demand
payment of principal at any time, or at specified intervals not exceeding l3
months, in each
              Page 5
case upon not more than 30 days' notice.Variable rate demand notes include
master demand notes which are obligations that permit the Fund
to invest fluctuating amounts, at varying rates of interest, pursuant to
direct arrangements between the Fund, as lender, and the borrower. These
obligations permit daily changes in the amount borrowed. Frequently, such
obligations are secured by letters of credit or other credit support
arrangements provided by banks. Use of letters of credit or other credit
support arrangements will not adversely affect the tax exempt status of these
obligations. Because these obligations are direct lending arrangements
between the lender and borrower, it is not contemplated that such instruments
generally will be traded, and there generally is no established secondary
market for these obligations, although they are redeemable at face value,
plus accrued interest. Accordingly, where these obligations are not secured
by letters of credit or other credit support arrangements, the Fund's right
to redeem is dependent on the ability of the borrower to pay principal and
interest on demand. Each obligation purchased by the Fund will meet the
quality criteria established for the purchase of Municipal Obligations. The
Dreyfus Corporation, on behalf of the Fund, will consider on an ongoing basis
the creditworthiness of the issuers of the floating and variable rate demand
obligations in the Fund's portfolio.

          The Fund may purchase from financial institutions participation
interests in Municipal Obligations (such as industrial development bonds and
municipal lease/purchase agreements). A participation interest gives the Fund
an undivided interest in the Municipal Obligation in the proportion that the
Fund's participation interest bears to the total principal amount of the
Municipal Obligation. These instruments may have fixed, floating or variable
rates of interest, with remaining maturities of 13 months or less. If the
participation interest is unrated, or has been given a rating below that
which otherwise is permissible for purchase by the Fund, the participation
interest will be backed by an irrevocable letter of creditor guarantee of a
bank that the Board of Trustees has determined meets the prescribed quality
standards for banks set forth below, or the payment obligation otherwise will
be collateralized by U.S. Government securities. For certain participation
interests, the Fund will have the right to demand payment, on not more than
seven days' notice, for all or any part of the Fund's participation interest
in the Municipal Obligation, plus accrued interest. As to these instruments,
the Fund intends to exercise its right to demand payment only upon a default
under the terms of the Municipal Obligation, as needed to provide liquidity
to meet redemptions, or to maintain or improve the quality of its investment
portfolio.

          The Fund may purchase tender option bonds. A tender option bond is
a Municipal Obligation (generally held pursuant to a custodial arrangement)
having a relatively long maturity and bearing interest at a fixed rate
substantially higher than prevailing short-term tax exempt rates, that has
been coupled with the agreement of a third party, such as a bank,
broker-dealer or other financial institution, pursuant to which such
institution grants the security holders the option, at periodic intervals, to
tender their securities to the institution and receive the face value
thereof. As consideration for providing the option, the financial institution
receives periodic fees equal to the difference between the Municipal
Obligation's fixed coupon rate and the rate, as determined by a remarketing
or similar agent at or near the commencement of such period, that would cause
the security, coupled with the tender option, to trade at par on the date of
such determination. Thus, after payment of this fee, the security holder
effectively holds a demand obligation that bears interest at the prevailing
short-term tax exempt rate. The Dreyfus Corporation, on behalf of the Fund,
will consider on an ongoing basis the creditworthiness of the issuers of the
underlying Municipal Obligations, of any custodian and of the third party
provider of the tender option. In certain instances and for certain tender
option bonds, the option may be terminable in the event of a default in
payment of principal or interest on the underlying Municipal Obligations and
for other reasons. The Fund will not invest more than 10% of the value of its
net assets in securities that are illiquid, which could include tender option
bonds as to which it cannot exercise the tender feature on not more than
seven days' notice if there is no secondary market available for these
obligations.
              Page 6
          The Fund may acquire "stand-by commitments" with respect to
Municipal Obligations held in its portfolio. Under a stand-by commitment, the
Fund obligates a broker, dealer or bank to repurchase, at the Fund's option,
specified securities at a specified price and, in this respect, stand-by
commitments are comparable to put options. The exercise of a stand-by
commitment therefore is subject to the ability of the seller to make payment
on demand. The Fund will acquire stand-by commitments solely to facilitate
portfolio liquidity and does not intend to exercise its rights thereunder for
trading purposes. The Fund may pay for stand-by commitments if such action is
deemed necessary, thus increasing to a degree the cost of the underlying
Municipal Obligation and similarly decreasing such security's yield to
investors.

          The Fund may invest up to 10% of the value of its net assets in
securities as to which a liquid trading market does not exist, provided such
investments are consistent with the Fund's investment objective. Such
securities may include securities that are not readily marketable, such as
certain securities that are subject to legal or contractual restrictions on
resale, and repurchase agreements providing for settlement in more than seven
days after notice. As to these securities, the Fund is subject to a risk that
should the Fund desire to sell them when a ready buyer is not available at a
price the Fund deems representative of their value, the value of the Fund's
net assets could be adversely affected.

          From time to time, on a temporary basis other than for temporary
defensive purposes (but not to exceed 20% of the value of the Fund's net
assets) or for temporary defensive purposes, the Fund may invest in taxable
short-term investments ("Taxable Investments") consisting of: notes of
issuers having, at the time of purchase, a quality rating within the two
highest grades of Moody's, S&P or Fitch; obligations of the U.S. Government,
its agencies or instrumentalities; commercial paper rated not lower than P-2
by Moody's, A-2 by S&P or F-2 by Fitch; certificates of deposit of U.S.
domestic banks, including foreign branches of domestic banks, with assets of
one billion dollars or more; time deposits; bankers' acceptances and other
short-term bank obligations; and repurchase agreements in respect of any of
the foregoing. Dividends paid by the Fund that are attributable to income
earned by the Fund from Taxable Investments will be taxable to investors. See
"Dividends, Distributions and Taxes." Except for temporary defensive
purposes, at no time will more than 20% of the value of the Fund's net assets
be invested in Taxable Investments. If the Fund purchases Taxable
Investments, it will value them using the amortized cost method and comply
with the provisions of Rule 2a-7 relating to purchases of taxable
instruments. When the Fund has adopted a temporary defensive position
including when acceptable Massachusetts Municipal Obligations are unavailable
for investment by the Fund, in excess of 35% of the Fund's net assets may be
invested in securities that are not exempt from Massachusetts income taxes.
Under normal market conditions, the Fund anticipates that not more than 5% of
the value of its total assets will be invested in any one category of Taxable
Investments. Taxable Investments are more fully described in the Statement of
Additional Information to which reference hereby is made.
CERTAIN FUNDAMENTAL POLICIES - The Fund may (i) borrow money from banks, but
only for temporary or emergency (not leveraging) purposes, in an amount up to
15% of the value of the Fund's total assets (including the amount borrowed)
valued at the lesser of cost or market, less liabilities (not including the
amount borrowed) at the time the borrowing is made. While borrowings exceed
5% of the Fund's total assets, the Fund will not make any additional
investments; (ii) pledge, hypothecate, mortgage or otherwise encumber its
assets, but only to secure borrowings for temporary or emergency purposes;
and (iii) invest up to 25% of its total assets in the securities of issuers
in any industry, provided that there is no such limitation on investments in
Municipal Obligations and, for temporary defensive purposes, obligations
issued or guaranteed by the U.S. Government, its agencies or
instrumentalities. This paragraph describes fundamental policies that cannot
be changed without approval by the holders of a majority (as defined in the
Investment Company Act of 1940) of the Fund's outstanding voting shares. See
"Investment Objective and Management Policies-Investment Restrictions" in the
Statement of Additional Information.


               Page 7

RISK FACTORS-INVESTING IN MASSACHUSETTS MUNICIPAL OBLIGATIONS - You should
consider carefully the special risks inherent in the Fund's investment in
Massachusetts Municipal Obligations. Massachusetts' economic difficulties and
fiscal problems in the late 1980s and early 1990s caused several rating
agencies to lower their ratings of Massachusetts Municipal Obligations. A
return of persistent serious financial difficulties could adversely affect
the market values and marketability of, or result in default in payment on,
outstanding Massachusetts Municipal Obligations. Massachusetts' expenditures
for State programs and services in each of the fiscal years 1987 through 1991
exceeded such year's current revenues. For the budgeted funds, operating
losses in fiscal 1987 and 1988 were covered largely by drawing on fund
balances from prior fiscal years. Massachusetts' operating losses in fiscal
1989 and 1990, which totalled $672 million and $1.25 billion, respectively,
were covered primarily through deficit borrowings, and the fiscal 1991
operating loss of $21 million was covered by drawing on the adjusted 1990
fund balance of $258 million. The budgeted operating funds of Massachusetts
ended fiscal years 1992 through 1994, however, with an excess of revenues and
other sources over expenditures and other uses of $312.3 million, $13.1
million and $26.8 million, respectively. Fiscal 1994 ended with positive
budgeted operating fund balances of $589.3 million. You should obtain and
review a copy of the Statement of Additional Information which more fully
sets forth these and other risk factors.

OTHER INVESTMENT CONSIDERATIONS - Even though interest-bearing securities
are investments which promise a stable stream of income, the prices of such
securities are inversely affected by changes in interest rates and,
therefore, are subject to the risk of market price fluctuations. The values
of fixed-income securities also may be affected by changes in the credit
rating or financial condition of the issuing entities.
          New issues of Municipal Obligations usually are offered on a
when-issued basis, which means that delivery and payment for such Municipal
Obligations ordinarily take place within 45 days after the date of the
commitment to purchase. The payment obligation and the interest rate that
will be received on the Municipal Obligations are fixed at the time the Fund
enters into the commitment. The Fund will make commitments to purchase such
Municipal Obligations only with the intention of actually acquiring the
securities, but the Fund may sell these securities before the settlement date
if it is deemed advisable, although any gain realized on such sale would be
taxable. The Fund will not accrue income in respect of a when-issued security
prior to its stated delivery date. No additional when-issued commitments will
be made if more than 20% of the value of the Fund's net assets would be so
committed.
          Municipal Obligations purchased on a when-issued basis and the
securities held in the Fund's portfolio are subject to changes in value (both
generally changing in the same way, i.e., appreciating when interest rates
decline and depreciating when interest rates rise) based upon the public's
perception of the creditworthiness of the issuer and changes, real or
anticipated, in the level of interest rates. Municipal Obligations purchased
on a when-issued basis may expose the Fund to risk because they may
experience such fluctuations prior to their actual delivery. Purchasing
Municipal Obligations on a when-issued basis can involve the additional risk
that the yield available in the market when the delivery takes place actually
may be higher than that obtained in the transaction itself. A segregated
account of the Fund consisting of cash, cash equivalents or U.S. Government
securities or other high quality liquid debt securities at least equal at all
times to the amount of the when-issued commitments will be established and
maintained at the Fund's custodian bank. Purchasing Municipal Obligations on a
when-issued basis when the Fund is fully or almost fully invested may result
in greater potential fluctuation in the value of the Fund's net assets and
its net asset value per share.
          Certain municipal lease/purchase obligations in which the Fund may
invest may contain "non-appropriation" clauses which provide that the
municipality has no obligation to make lease payments in future years unless
money is appropriated for such purpose on a yearly basis. Although
"non-appropriation" lease/purchase obligations are secured by the leased
property, disposition of the leased property in the event of foreclosure
might prove difficult. In evaluating the credit quality of a municipal
lease/purchase obligation that is
              Page 8
unrated, The Dreyfus Corporation will consider, on an ongoing basis, a number
of factors including the likelihood that the issuing municipality will
discontinue appropriating funding for the leased property.
          Certain provisions in the Code relating to the issuance of
Municipal Obligations may reduce the volume of Municipal Obligations
qualifying for Federal tax exemption. One effect of these provisions could be
to increase the cost of the Municipal Obligations available for purchase by
the Fund and thus reduce the available yield. Shareholders should consult
their tax advisers concerning the effect of these provisions on an investment
in the Fund. Proposals that may restrict or eliminate the income tax
exemption for interest on Municipal Obligations may be introduced in the
future. If any such proposal were enacted that would reduce the availability
of Municipal Obligations for investment by the Fund so as to adversely affect
Fund shareholders, the Fund would reevaluate its investment objective and
policies and submit possible changes in the Fund's structure to shareholders
for their consideration. If legislation were enacted that would treat a type
of Municipal Obligation as taxable, the Fund would treat such security as a
permissible Taxable Investment within the applicable limits set forth herein.
          The Fund's classification as a "non-diversified'' investment
company means that the proportion of the Fund's assets that may be invested
in the securities of a single issuer is not limited by the Investment Company
Act of 1940. A "diversified" investment company is required by the Investment
Company Act of 1940 generally to invest, with respect to 75% of its total
assets, not more than 5% of such assets in the securities of a single issuer.
However, the Fund intends to conduct its operations so as to qualify as a
"regulated investment company" for purposes of the Code, which requires that,
at the end of each quarter of its taxable year, (i) at least 50% of the
market value of the Fund's total assets be invested in cash, U.S. Government
securities, the securities of other regulated investment companies and other
securities, with such other securities of any one issuer limited for the
purposes of this calculation to an amount not greater than 5% of the value of
the Fund's total assets, and (ii) not more than 25% of the value of its total
assets be invested in the securities of any one issuer (other than U.S.
Government securities or the securities of other regulated investment
companies). Since a relatively high percentage of the Fund's assets may be
invested in the obligations of a limited number of issuers, the Fund's
portfolio securities may be more susceptible to any single economic, political
or regulatory occurrence than the portfolio securities of a diversified
investment company.
          Investment decisions for the Fund are made independently from those
of other investment companies advised by The Dreyfus Corporation. However, if
such other investment companies are prepared to invest in, or desire to
dispose of, Municipal Obligations or Taxable Investments at the same time as
the Fund, available investments or opportunities for sales will be allocated
equitably to each investment company. In some cases, this procedure may
adversely affect the size of the position obtained for or disposed of by the
Fund or the price paid or received by the Fund.
                          MANAGEMENT OF THE FUND

          The Dreyfus Corporation, located at 200 Park Avenue, New York, New
York 10166, was formed in 1947 and serves as the Fund's investment adviser.
The Dreyfus Corporation is a wholly-owned subsidiary of Mellon Bank, N.A.,
which is a wholly-owned subsidiary of Mellon Bank Corporation ("Mellon"). As
of February 28, 1995, The Dreyfus Corporation managed or administered
approximately $72 billion in assets for more than 1.9 million investor
accounts nationwide.

          The Dreyfus Corporation supervises and assists in the overall
management of the Fund's affairs under a Management Agreement with the Fund,
subject to the overall authority of the Fund's Board of Trustees in
accordance with Massachusetts law.

        Mellon is a publicly owned multibank holding company incorporated
under Pennsylvania law in 1971 and registered under the Federal Bank Holding
Company Act of 1956, as amended. Mellon provides a comprehensive range of
financial products and services in domestic and selected international
                  Page 9
markets. Mellon is among the twenty-five largest bank holding companies in
the United States based on total assets. Mellon's principal wholly-owned
subsidiaries are Mellon Bank, N.A., Mellon Bank (DE) National Association,
Mellon Bank (MD), The Boston Company, Inc., AFCO Credit Corporation and a
number of companies known as Mellon Financial Services Corporations. Through
its subsidiaries, including The Dreyfus Corporation, Mellon managed
approximately $193 billion in assets as of December 31, 1994, including
approximately $70 billion in mutual fund assets. As of December 31, 1994,
Mellon, through various subsidiaries, provided non-investment services, such
as custodial and administration services, for approximately $654 billion in
assets, including approximately $74 billion in mutual fund assets.

          Under the terms of the Management Agreement, the Fund has agreed to
pay The Dreyfus Corporation a monthly fee at the annual rate of .50 of 1% of
the value of the Fund's average daily net assets. From time to time, The
Dreyfus Corporation may waive receipt of its fees and/or voluntarily assume
certain expenses of the Fund, which would have the effect of lowering the
overall expense ratio of the Fund and increasing yield to investors at the
time such amounts are waived or assumed, as the case may be. The Fund will
not pay The Dreyfus Corporation at a later time for any amounts it may waive,
nor will the Fund reimburse The Dreyfus Corporation for any amounts it may
assume. For the fiscal year ended January 31, 1995, the Fund paid a
management fee at the effective annual rate of .04 of 1% of the value of the
Fund's average daily net assets pursuant to undertakings by The Dreyfus
Corporation.

          The Dreyfus Corporation may pay the Fund's distributor for
shareholder services from The Dreyfus Corporation's own assets, including
past profits but not including the management fee paid by the Fund. The
Fund's distributor may use part or all of such payments to pay securities
dealers or others in respect of these services.
        The Fund's distributor is Premier Mutual Fund Services, Inc. (the
"Distributor"), located at One Exchange Place, Boston, Massachusetts 02109.
The Distributor is a wholly-owned subsidiary of FDI Distribution Services,
Inc., a provider of mutual fund administration services, which in turn is a
wholly-owned subsidiary of FDI Holdings, Inc., the parent company of which is
Boston Institutional Group, Inc.

          The Shareholder Services Group, Inc., a subsidiary of First Data
Corporation, P.O. Box 9671, Providence, Rhode Island 02940-9671, is the
Fund's Transfer and Dividend Disbursing Agent (the "Transfer Agent"). The
Bank of New York, 90 Washington Street, New York, New York 10286, is the
Fund's Custodian.

                           HOW TO BUY FUND SHARES
          Fund shares are sold without a sales charge. You may be charged a
nominal fee if you effect transactions in Fund shares through a securities
dealer, bank or other financial institution. Share certificates are issued
only upon your written request. No certificates are issued for fractional
shares. It is not recommended that the Fund be used as a vehicle for Keogh,
IRA or other qualified plans. The Fund reserves the right to reject any
purchase order.
          The minimum initial investment is $2,500, or $1,000 if you are a
client of a securities dealer, bank or other financial institution which has
made an aggregate minimum initial purchase for its customers of $2,500.
Subsequent investments must be at least $100. The initial investment must be
accompanied by  the Fund's Account Application. For full-time or part-time
employees of The Dreyfus Corporation or any of its affiliates or
subsidiaries, directors of The Dreyfus Corporation, Board members of a fund
advised by The Dreyfus Corporation, including members of the Fund's Board, or
the spouse or minor child of any of the foregoing, the minimum initial
investment is $1,000. For full-time or part-time employees of The Dreyfus
Corporation or any of its affiliates or subsidiaries who elect to have a
portion of their pay directly deposited into their Fund account, the minimum
initial investment is $50. The Fund reserves the right to vary further the
initial and subsequent investment minimum requirements at any time.
                Page 10
          You may purchase Fund shares by check or wire, or through the
Dreyfus TELETRANSFER Privilege described below. Checks should be made payable
to "The Dreyfus Family of Funds." Payments to open new accounts which are
mailed should be sent to The Dreyfus Family of Funds, P.O. Box 9387,
Providence, Rhode Island 02940-9387, together with your Account Application.
For subsequent investments, your Fund account number should appear on the
check and an investment slip should be enclosed and sent to The Dreyfus
Family of Funds, P.O. Box 105, Newark, New Jersey 07101-0105. Neither initial
nor subsequent investments should be made by third party check. Purchase
orders may be delivered in person only to a Dreyfus Financial Center. These
orders will be forwarded to the Fund and will be processed only upon receipt
thereby. For the location of the nearest Dreyfus Financial Center, please
call the telephone number listed under "General Information."
          Wire payments may be made if your bank account is in a commercial
bank that is a member of the Federal Reserve System or any other bank having
a correspondent bank in New York City. Immediately available funds may be
transmitted by wire to The Bank of New York, DDA#8900119209/Dreyfus
Massachusetts Municipal Money Market Fund, for purchase of Fund shares in
your name. The wire must include your Fund account number (for new accounts,
your Taxpayer Identification Number ("TIN") should be included instead),
account registration and dealer number, if applicable. If your initial
purchase of Fund shares is by wire, please call 1-800-645-6561 after
completing your wire payment to obtain your Fund account number. Please
include your Fund account number on the Fund's Account Application and
promptly mail the Account Application to the Fund, as no redemptions will be
permitted until the Account Application is received. You may obtain further
information about remitting funds in this manner from your bank. All payments
should be made in U.S. dollars and, to avoid fees and delays, should be drawn
only on U.S. banks. A charge will be imposed if any check used for investment
in your account does not clear. The Fund makes available to certain large
institutions the ability to issue purchase instructions through compatible
computer facilities.
          Subsequent investments also may be made by electronic transfer of
funds from an account maintained in a bank or other domestic financial
institution that is an Automated Clearing House member. You must direct the
institution to transmit immediately available funds through the Automated
Clearing House to The Bank of New York with instructions to credit your Fund
account. The instructions must specify your Fund account registration and
your Fund account number preceded by the digits "1111"
          Fund shares are sold on a continuous basis at the net asset value
per share next determined after an order in proper form and Federal Funds
(monies of member banks within the Federal Reserve System which are held on
deposit at a Federal Reserve Bank) are received by the Transfer Agent. If you
do not remit Federal Funds, your payment must be converted into Federal
Funds. This usually occurs within one business day of receipt of a bank wire
or within two business days of receipt of a check drawn on a member bank of
the Federal Reserve System. Checks drawn on banks which are not members of
the Federal Reserve System may take considerably longer to convert into
Federal Funds. Prior to receipt of Federal Funds, your money will not be
invested.
          The Fund's net asset value per share is determined as of 12:00
Noon, New York time, on each day that the New York Stock Exchange is open for
business. Net asset value per share is computed by dividing the value of the
Fund's net assets (i.e., the value of its assets less liabilities) by the
total number of shares outstanding. See "Determination of Net Asset Value" in
the Fund's Statement of Additional Information.
          If your payments are received in or converted into Federal Funds by
12:00 Noon, New York time, by the Transfer Agent, you will receive the
dividend declared that day. If your payments are received in or converted
into Federal Funds after 12:00 Noon, New York time, by the Transfer Agent,
you will begin to accrue dividends on the following business day.
          Qualified institutions may telephone orders for purchase of the
Fund's shares. These orders will become effective at the price determined at
12:00 Noon, New York time, and the shares purchased will
                Page 11
receive the dividend on Fund shares declared on that day if the telephone
order is placed by 12:00 Noon, New York time, and Federal Funds are received
by 4:00 p.m., New York time, on that day.
          Federal regulations require that you provide a certified TIN upon
opening or reopening an account. See "Dividends, Distributions and Taxes" and
the Fund's Account Application for further information concerning this
requirement. Failure to furnish a certified TIN to the Fund could subject you
to a $50 penalty imposed by the Internal Revenue Service (the "IRS").
DREYFUS TELETRANSFER PRIVILEGE - You may purchase Fund shares (minimum $500,
maximum $150,000 per day) by telephone if you have checked the appropriate
box and supplied the necessary information on the Fund's Account Application
or have filed a Shareholder Services Form with the Transfer Agent. The
proceeds will be transferred between the bank account designated in one of
these documents and your Fund account. Only a bank account maintained in a
domestic financial institution which is an Automated Clearing House member
may be so designated. The Fund may modify or terminate this Privilege at any
time or charge a service fee upon notice to shareholders. No such fee
currently is contemplated.
          If you have selected the Dreyfus TELETRANSFER Privilege, you may
request a Dreyfus TELETRANSFER purchase of Fund shares by telephoning
1-800-221-4060 or, if you are calling from overseas, call 1-401-455-3306.
                              SHAREHOLDER SERVICES

Fund Exchanges - You may purchase, in exchange for shares of the Fund, shares
of certain other funds managed or administered by The Dreyfus Corporation, to
the extent such shares are offered for sale in your state of residence. These
funds have different investment objectives which may be of interest to you.
If you desire to use this service, please call 1-800-645-6561 to determine if
it is available and whether any conditions are imposed on its use.
          To request an exchange, you must give exchange instructions to the
Transfer Agent in writing or by telephone. Before any exchange, you must
obtain and should review a copy of the current prospectus of the fund into
which the exchange is being made. Prospectuses may be obtained by calling
1-800-645-6561. Except in the case of Personal Retirement Plans, the shares
being exchanged must have a current value of at least $500; furthermore, when
establishing a new account by exchange, the shares being exchanged must have
a value of at least the minimum initial investment required for the fund into
which the exchange is being made. The ability to issue exchange instructions
by telephone is given to all Fund shareholders automatically, unless you
check the applicable "NO" box on the Account Application, indicating that you
specifically refuse this Privilege. The Telephone Exchange Privilege may be
established for an existing account by written request, signed by all
shareholders on the account, or by a separate signed Shareholder Services
Form, also available by calling 1-800-645-6561. If you have established the
Telephone Exchange Privilege, you may telephone exchange instructions by
calling 1-800-221-4060 or, if you are calling from overseas, call
1-401-455-3306. See "How to Redeem Fund Shares-Procedures." Upon an exchange
into a new account, the following shareholder services and privileges, as
applicable and where available, will be automatically carried over to the
fund into which the exchange is made: Telephone Exchange Privilege, Check
Redemption Privilege, Wire Redemption Privilege, Telephone Redemption
Privilege, Dreyfus TELETRANSFER Privilege and the dividend/capital gain
distribution option (except for Dreyfus Dividend Sweep) selected by the
investor.

          Shares will be exchanged at the next determined net asset value;
however, a sales load may be charged with respect to exchanges into funds
sold with a sales load. If you are exchanging into a fund that charges a
sales load, you may qualify for share prices which do not include the sales
load or which reflect a reduced sales load, if the shares of the fund from
which you are exchanging were: (a) purchased with a sales load, (b) acquired
by a previous exchange from shares purchased with a sales load, or (c)
acquired through reinvestment of dividends or distributions paid with respect
to the foregoing categories of shares. To qualify, at
                Page 12
the time of your exchange you must notify the Transfer Agent. Any such
qualification is subject to confirmation of your holdings through a check of
appropriate records. See "Shareholder Services" in the Statement of
Additional Information. No fees currently are charged shareholders directly in
connection with exchanges, although the Fund reserves the right, upon not
less than 60 days' written notice, to charge shareholders a nominal fee in
accordance with rules promulgated by the Securities and Exchange Commission.
The Fund reserves the right to reject any exchange request in whole or in
part. The availability of Fund Exchanges may be modified or terminated at any
time upon notice to shareholders.

          The exchange of shares of one fund for shares of another is treated
for Federal income tax purposes as a sale of the shares given in exchange by
the shareholder and, therefore, an exchanging shareholder may realize a
taxable gain or loss.
DREYFUS AUTO-EXCHANGE PRIVILEGE - Dreyfus Auto-Exchange Privilege enables
you to invest regularly (on a semi-monthly, monthly, quarterly or annual
basis), in exchange for shares of the Fund, in shares of other funds in the
Dreyfus Family of Funds of which you are currently an investor. The amount
you designate, which can be expressed either in terms of a specific dollar or
share amount ($100 minimum), will be exchanged automatically on the first
and/or fifteenth of the month according to the schedule you selected. Shares
will be exchanged at the then-current net asset value; however, a sales load
may be charged with respect to exchanges into funds sold with a sales load.
See "Shareholder Services" in the Statement of Additional Information. The
right to exercise this Privilege may be modified or cancelled by the Fund or
the Transfer Agent. You may modify or cancel your exercise of this Privilege
at any time by writing to The Dreyfus Family of Funds, P.O. Box 9671,
Providence, Rhode Island 02940-9671. The Fund may charge a service fee for
the use of this Privilege. No such fee currently is contemplated. The
exchange of shares of one fund for shares of another is treated for Federal
income tax purposes as a sale of the shares given in exchange by the
shareholder and, therefore, an exchanging investor may realize a taxable gain
or loss. For more information concerning this Privilege and the funds in the
Dreyfus Family of Funds eligible to participate in this Privilege, or to
obtain a Dreyfus Auto-Exchange Authorization Form, please call toll free
1-800-645-6561.

DREYFUS-AUTOMATIC ASSET BUILDER Registration Mark - Dreyfus-Automatic Asset
Builder permits you to purchase Fund shares (minimum of $100 and maximum of
$150,000 per transaction) at regular intervals selected by you. Fund shares
are purchased by transferring funds from the bank account designated by you.
At your option, the bank account designated by you will be debited in the
specified amount, and Fund shares will be purchased, once a month, on either
the first or fifteenth day, or twice a month, on both days. Only an account
maintained at a domestic financial institution which is an Automated Clearing
House member may be so designated. To establish a Dreyfus-Automatic Asset
Builder account, you must file an authorization form with the Transfer Agent.
You may obtain the necessary authorization form by calling 1-800-645-6561.
You may cancel your participation in this Privilege or change the amount of
purchase at any time by mailing written notification to The Dreyfus Family of
Funds, P.O. Box 9671, Providence, Rhode Island 02940-9671, and the
notification will be effective three business days following receipt. The
Fund may modify or terminate this Privilege at any time or charge a service
fee. No such fee currently is contemplated.

DREYFUS GOVERNMENT DIRECT DEPOSIT PRIVILEGE - Dreyfus Government Direct
Deposit Privilege enables you to purchase Fund shares (minimum of $100 and
maximum of $50,000 per transaction) by having Federal salary, Social
Security, or certain veterans', military or other payments from the Federal
government automatically deposited into your Fund account. You may deposit as
much of such payments as you elect. To enroll in Dreyfus Government Direct
Deposit, you must file with the Transfer Agent a completed Direct Deposit
Sign-Up Form for each type of payment that you desire to include in the
Privilege. The appropriate form may be obtained by calling 1-800-645-6561.
Death or legal incapacity will terminate your participation in this
Privilege. You may elect at any time to terminate your
                Page 13
participation by notifying in writing the appropriate Federal agency.
Further, the Fund may terminate your participation upon 30 days' notice to
you.
DREYFUS DIVIDEND OPTIONS - Dreyfus Dividend Sweep enables you to invest
automatically dividends or dividends and capital gain distributions, if any,
paid by the Fund in shares of another fund in the Dreyfus Family of Funds of
which you are a shareholder. Shares of the other fund will be purchased at
the then-current net asset value; however, a sales load may be charged with
respect to investments in shares of a fund sold with a sales load. If you are
investing in a fund that charges a sales load, you may qualify for share
prices which do not include the sales load or which reflect a reduced sales
load. If you are investing in a fund that charges a contingent deferred sales
charge, the shares purchased will be subject on redemption to the contingent
deferred sales charge, if any, applicable to the purchased shares. See
"Shareholder Services" in the Statement of Additional Information. Dreyfus
Dividend ACH permits you to transfer electronically on the payment date
dividends or dividends and capital gain distributions, if any, from the Fund
to a designated bank account. Only an account maintained at a domestic
financial institution which is an Automated Clearing House member may be so
designated. Banks may charge a fee for this service.
          For more information concerning these privileges, or to request a
Dividend Options Form, please call toll free 1-800-645-6561. You may cancel
these privileges by mailing written notification to The Dreyfus Family of
Funds, P.O. Box 9671, Providence, Rhode Island 02940-9671. To select a new
fund after cancellation, you must submit a new Dividend Options Form.
Enrollment in or cancellation of these privileges is effective three business
days following receipt. These privileges are available only for existing
accounts and may not be used to open new accounts. Minimum subsequent
investments do not apply for Dreyfus Dividend Sweep. The Fund may modify or
terminate these privileges at any time or charge a service fee. No such fee
currently is contemplated.
DREYFUS PAYROLL SAVINGS PLAN - Dreyfus Payroll Savings Plan permits you to
purchase Fund shares (minimum of $100 per transaction) automatically on a
regular basis. Depending upon your employer's direct deposit program, you may
have part or all of your paycheck transferred to your existing Dreyfus
account electronically through the Automated Clearing House system at each
pay period. To establish a Dreyfus Payroll Savings Plan account, you must
file an authorization form with your employer's payroll department. Your
employer must complete the reverse side of the form and return it to The
Dreyfus Family of Funds, P.O. Box 9671, Providence, Rhode Island 02940-9671.
You may obtain the necessary authorization form by calling 1-800-645-6561.
You may change the amount of purchase or cancel the authorization only by
written notification to your employer. It is the sole responsibility of your
employer, not the Distributor, The Dreyfus Corporation, the Fund, the
Transfer Agent or any other person, to arrange for transactions under the
Dreyfus Payroll Savings Plan. The Fund may modify or terminate this Privilege
at any time or charge a service fee. No such fee currently is contemplated.
AUTOMATIC WITHDRAWAL PLAN - The Automatic Withdrawal Plan permits you to
request withdrawal of a specified dollar amount (minimum of $50) on either a
monthly or quarterly basis if you have a $5,000 minimum account. An
application for the Automatic Withdrawal Plan can be obtained by calling
1-800-645-6561. There is a service charge of 50cents for each withdrawal
check. The Automatic Withdrawal Plan may be ended at any time by you, the
Fund or the Transfer Agent. Shares for which certificates have been issued
may not be redeemed through the Automatic Withdrawal Plan.

                           HOW TO REDEEM FUND SHARES
GENERAL - You may request redemption of your shares at any time. Redemption
requests should be transmitted to the Transfer Agent as described below. When
a request is received in proper form, the Fund will redeem the shares at the
next determined net asset value.

          The Fund imposes no charges when shares are redeemed. Securities
dealers, banks and other financial institutions may charge a nominal fee for
effecting redemptions of Fund shares. Any certificates rep-
            Page 14
resenting Fund shares being redeemed must be submitted with the redemption
request. The value of the shares redeemed may be more or less than their
original cost, depending upon the Fund's then-current net asset value.

          The Fund ordinarily will make payment for all shares redeemed
within seven days after receipt by the Transfer Agent of a redemption request
in proper form, except as provided by the rules of the Securities and
Exchange Commission. HOWEVER, IF YOU HAVE PURCHASED FUND SHARES BY CHECK, BY
DREYFUS TELETRANSFER PRIVILEGE OR THROUGH DREYFUS-AUTOMATIC ASSET BUILDER AND
SUBSEQUENTLY SUBMIT A WRITTEN REDEMPTION REQUEST TO THE TRANSFER AGENT, YOUR
REDEMPTION WILL BE EFFECTIVE AND THE REDEMPTION PROCEEDS WILL BE TRANSMITTED
TO YOU PROMPTLY UPON BANK CLEARANCE OF YOUR PURCHASE CHECK, DREYFUS
TELETRANSFER PURCHASE OR DREYFUS-AUTOMATIC ASSET BUILDER ORDER, WHICH MAY
TAKE UP TO EIGHT BUSINESS DAYS OR MORE. IN ADDITION, THE FUND WILL NOT HONOR
REDEMPTION CHECKS UNDER THE CHECK REDEMPTION PRIVILEGE, AND WILL REJECT
REQUESTS TO REDEEM SHARES BY WIRE OR TELEPHONE OR PURSUANT TO THE DREYFUS
TELETRANSFER PRIVILEGE, FOR A PERIOD OF EIGHT BUSINESS DAYS AFTER RECEIPT BY
THE TRANSFER AGENT OF THE PURCHASE CHECK, THE DREYFUS TELETRANSFER PURCHASE
OR THE DREYFUS-AUTOMATIC ASSET BUILDER ORDER AGAINST WHICH SUCH REDEMPTION IS
REQUESTED. THESE PROCEDURES WILL NOT APPLY IF YOUR SHARES WERE PURCHASED BY
WIRE PAYMENT, OR IF YOU OTHERWISE HAVE A SUFFICIENT COLLECTED BALANCE IN YOUR
ACCOUNT TO COVER THE REDEMPTION REQUEST. PRIOR TO THE TIME ANY REDEMPTION IS
EFFECTIVE, DIVIDENDS ON SUCH SHARES WILL ACCRUE AND BE PAYABLE, AND YOU WILL
BE ENTITLED TO EXERCISE ALL OTHER RIGHTS OF BENEFICIAL OWNERSHIP. Fund shares
will not be redeemed until the Transfer Agent has received your Account
Application.
          The Fund reserves the right to redeem your account at its option
upon not less than 30 days' written notice if your account's net asset value
is $500 or less and remains so during the notice period.
PROCEDURES - You may redeem shares by using the regular redemption procedure
through the Transfer Agent, the Check Redemption Privilege, the Wire
Redemption Privilege, the Telephone Redemption Privilege, or the Dreyfus
TELETRANSFER Privilege. The Fund makes available to certain large
institutions the ability to issue redemption instructions through compatible
computer facilities.

          You may redeem Fund shares by telephone if you have checked the
appropriate box on the Fund's Account Application or have filed a Shareholder
Services Form with the Transfer Agent. If you select a telephone redemption
privilege or telephone exchange privilege, (which is granted automatically
unless you refuse it), you authorize the Transfer Agent to act on telephone
instructions from any persons representing himself or herself to be you and
reasonably believed by the Transfer Agent to be genuine. The Fund will
require the Transfer Agent to employ reasonable procedures such as requiring
a form of personal identification, to confirm that instructions are genuine
and, if it does not follow such procedures, the Fund or the Transfer Agent
may be liable for any losses due to unauthorized or fraudulent instructions.
Neither the Fund nor the Transfer Agent will be liable for following
telephone instructions reasonably believed to be genuine.

          During times of drastic economic or market conditions, you may
experience difficulty in contacting the Transfer Agent by telephone to
request a redemption or exchange of Fund shares. In such cases, you should
consider using the other redemption procedures described herein. Use of these
other redemption procedures may result in your redemption request being
processed at a later time than it would have been if telephone redemption had
been used.
REGULAR REDEMPTION - Under the regular redemption procedure, you may redeem
your shares by written request mailed to The Dreyfus Family of Funds, P.O.
Box 9671, Providence, Rhode Island 02940-9671. Redemption requests may be
delivered in person only to a Dreyfus Financial Center. THESE REQUESTS WILL
BE FORWARDED TO THE FUND AND WILL BE PROCESSED ONLY UPON RECEIPT THEREBY. For
the location of the nearest  Dreyfus Financial Center, please call the
telephone number listed
             Page 15
under "General Information." Redemption requests must be signed by each
shareholder, including each owner of a joint account, and each signature must
be guaranteed. The Transfer Agent has adopted standards and procedures
pursuant to which signature-guarantees in proper form generally will be
accepted from domestic banks, brokers, dealers, credit unions, national
securities exchanges, registered securities associations, clearing agencies
and savings associations, as well as from participants in the New York Stock
Exchange Medallion Signature Program, the Securities
Transfer Agents Medallion Program ("STAMP"), and the Stock Exchanges
Medallion Program. If you have any questions with respect to
signature-guarantees, please call the telephone number listed under "General
Information."
          Redemption proceeds of at least $1,000 will be wired to any member
bank of the Federal Reserve System in accordance with a written
signature-guaranteed request.
CHECK REDEMPTION PRIVILEGE - You may request on the Account Application,
Shareholder Services Form or by later written request that the Fund provide
Redemption Checks drawn on the Fund's account. Redemption Checks may be made
payable to the order of any person in the amount of $500 or more. Redemption
Checks should not be used to close your account. Redemption Checks are free,
but the Transfer Agent will impose a fee for stopping payment of a Redemption
Check upon your request or if the Transfer Agent cannot honor the Redemption
Check due to insufficient funds or other valid reason. You should date your
Redemption Checks with the current date when you write them. Please do not
postdate your Redemption Checks. If you do, the Transfer Agent will honor,
upon presentment, even if presented before the date of the check, all
postdated Redemption Checks which are dated within six months of presentment
for payment, if they are otherwise in good order. Shares for which
certificates have been issued may not be redeemed by Redemption Check. This
Privilege may be modified or terminated at any time by the Fund or the
Transfer Agent upon notice to shareholders.
WIRE REDEMPTION PRIVILEGE - You may request by wire or telephone that
redemption proceeds (minimum $1,000) be wired to your account at a bank which
is a member of the Federal Reserve System, or a correspondent bank if your
bank is not a member. To establish the Wire Redemption Privilege, you must
check the appropriate box and supply the necessary information on the Fund's
Account Application or file a Shareholder Services Form with the Transfer
Agent. You may direct that redemption proceeds be paid by check (maximum
$150,000 per day) made out to the owners of record and mailed to your
address. Redemption proceeds of less than $1,000 will be paid automatically
by check. Holders of jointly registered Fund or bank accounts may have
redemption proceeds of only up to $250,000 wired within any 30-day period.
You may telephone redemption requests by calling 1-800-221-4060 or, if you
are calling from overseas, call 1-401-455-3306. The Fund reserves the right
to refuse any redemption request, including requests made shortly after a
change of address, and may limit the amount involved or the number of such
requests. This Privilege may be modified or terminated at any time by the
Transfer Agent or the Fund. The Fund's Statement of Additional Information
sets forth instructions for transmitting redemption requests by wire. Shares
for which certificates have been issued are not eligible for this Privilege.
TELEPHONE REDEMPTION PRIVILEGE - You may redeem Fund shares (maximum
$150,000 per day) by telephone if you have checked the appropriate box on the
Fund's Account Application or have filed a Shareholder Services Form with the
Transfer Agent. The redemption proceeds will be paid by check and mailed to
your address. You may telephone redemption instructions by calling
1-800-221-4060 or, if you are calling from overseas, call 1-401-455-3306. The
Fund reserves the right to refuse any request made by telephone, including
requests made shortly after a change of address, and may limit the amount
involved or the number of telephone redemption requests. This Privilege may
be modified or terminated at any time by the Transfer Agent or the Fund.
Shares for which certificates have been issued are not eligible for this
Privilege.
              Page 16
DREYFUS TELETRANSFER PRIVILEGE - You may redeem Fund shares (minimum $500
per day) by telephone if you have checked the appropriate box and supplied
the necessary information on the Fund's Account Application or have filed a
Shareholder Services Form with the Transfer Agent. The proceeds will be
transferred between your Fund account and the bank account designated in one
of these documents. Only such an account maintained in a domestic financial
institution which is an Automated Clearing House member may be so designated.
Redemption proceeds will be on deposit in your account at an Automated
Clearing House member bank ordinarily two days after receipt of the
redemption request or, at your request, paid by check (maximum $150,000 per
day) and mailed to your address. Holders of jointly registered Fund or bank
accounts may redeem through the Dreyfus TELETRANSFER Privilege for transfer
to their bank account only up to $250,000 within any 30-day period. The Fund
reserves the right to refuse any request made by telephone, including
requests made shortly after a change of address, and may limit the amount
involved or the number of such requests. The Fund may modify or terminate
this Privilege at any time or charge a service fee upon notice to
shareholders. No such fee currently is contemplated.
          If you have selected the Dreyfus TELETRANSFER Privilege, you may
request a Dreyfus TELETRANSFER redemption of Fund shares by telephoning
1-800-221-4060 or, if you are calling from overseas, call 1-401-455-3306.
Shares issued in certificate form are not eligible for this Privilege.
                            SHAREHOLDER SERVICES PLAN

          The Fund has adopted a Shareholder Services Plan pursuant to which
the Fund reimburses Dreyfus Service Corporation, a wholly-owned subsidiary of
The Dreyfus Corporation, an amount not to exceed an annual rate of .25 of 1%
of the value of the Fund's average daily net assets for certain allocated
expenses of providing personal services and/or maintaining shareholder
accounts. The services provided may include personal services relating to
shareholder accounts, such as answering shareholder inquiries regarding the
Fund and providing reports and other information, and services related to the
maintenance of shareholder accounts.

                    DIVIDENDS, DISTRIBUTIONS AND TAXES
          The Fund ordinarily declares dividends from net investment income
on each day the New York Stock Exchange is open for business. Dividends
usually are paid on the last day of each month, and are automatically
reinvested in additional Fund shares at net asset value or, at your option,
paid in cash. The Fund's earnings for Saturdays, Sundays and holidays are
declared as dividends on the preceding business day. If you redeem all shares
in your account at any time during the month, all dividends to which you are
entitled will be paid to you along with the proceeds of the redemption.
Distributions from net realized securities gains, if any, generally are
declared and paid once a year, but the Fund may make distributions on a more
frequent basis to comply with the distribution requirements of the Code, in
all events in a manner consistent with the provisions of the Investment
Company Act of 1940. The Fund will not make distributions from net realized
securities gains unless capital loss carryovers, if any, have been utilized
or have expired. You may choose whether to receive distributions in cash or
to reinvest in additional Fund shares at net asset value. All expenses are
accrued daily and deducted before declaration of dividends to investors.
          Dividends paid by the Fund to a Massachusetts resident are not
subject to Massachusetts personal income tax to the extent that the dividends
are attributable to interest income received by the Fund as interest from
Massachusetts Municipal Obligations as well as direct obligations of the
United States. The Fund believes that distributions by it to a Massachusetts
resident are not subject to the Massachusetts personal income tax to the
extent that distributions are attributable to gain from the sale of certain
Massachusetts Municipal Obligations, the gain from which is exempt from
Massachusetts personal
                        Page 17
income tax. Dividends and distributions by the Fund to a Massachusetts
resident that are attributable to most other sources are subject to
Massachusetts personal income tax. The Fund believes that distributions from
net realized long-term securities gains that are taxable by Massachusetts are
reportable as long-term capital gains, irrespective of how long the resident
has held shares in the Fund. Fund shares are not
subject to property taxation by Massachusetts or its political subdivisions.
          The foregoing discussion of Massachusetts personal income tax
consequences applies only to investors who are individuals residing in
Massachusetts. To the extent that investors are obligated to pay state or
local taxes outside of Massachusetts, dividends and distributions paid by the
Fund may represent taxable income.
          Except for dividends from Taxable Investments, the Fund anticipates
that substantially all dividends paid by the Fund will not be subject to
Federal income tax. Dividends derived from Taxable Investments, together with
distributions from any net realized short-term securities gains and all or a
portion of any gain realized  from the sale or other disposition of certain
market discount bonds, paid by the Fund are subject to Federal income tax as
ordinary income whether or not reinvested in additional Fund shares. No
dividend paid by the Fund will qualify for the dividends received deduction
allowable to certain U.S. corporations. Distributions from net realized
long-term securities gains of the Fund generally are taxable as long-term
capital gains for Federal income tax purposes if you are a citizen or
resident of the United States. The Code provides that the net capital gain of
an individual generally will not be subject to Federal income tax at a rate
in excess of 28%. Under the Code, interest on indebtedness incurred or
continued to purchase or carry Fund shares which is deemed to relate to
exempt-interest dividends is not deductible.
          Although all or a substantial portion of the dividends paid by the
Fund may be excluded by shareholders of the Fund from their gross income for
Federal income tax purposes, the Fund may purchase specified private activity
bonds, the interest from which may be (i) a preference item for purposes of
the alternative minimum tax, (ii) a component of the "adjusted current
earnings" preference item for purposes of the corporate alternative minimum
tax as well as a component in computing the corporate environmental tax or
(iii) a factor in determining the extent to which a shareholder's Social
Security benefits are taxable. If the Fund purchases such securities, the
portion of the Fund's dividends related thereto will not necessarily be tax
exempt to an investor who is subject to the alternative minimum tax and/or
tax on Social Security benefits and may cause an investor to be subject to
such taxes.
          Notice as to the tax status of your dividends and distributions
will be mailed to you annually. You also will receive periodic summaries of
your account which will include information as to dividends and distributions
from securities gains, if any, paid during the year. These statements set
forth the dollar amount of income exempt from Federal tax and the dollar
amount, if any, subject to Federal tax. These dollar amounts will vary
depending on the size and length of time of your investment in the Fund. If
the Fund pays dividends derived from taxable income, it intends to designate
as taxable the same percentage of the day's dividend as the actual taxable
income earned on that day bears to total income earned on that day. Thus, the
percentage of the dividend designated as taxable, if any, may vary from day
to day.
          Federal regulations generally require the Fund to withhold ("backup
withholding") and remit to the U.S. Treasury 31% of taxable dividends and
distributions from net realized securities gains of the Fund paid to a
shareholder if such shareholder failed to certify either that the TIN
furnished in connection with opening an account is correct, or that such
shareholder has not received notice from the IRS of being subject to backup
withholding as a result of a failure to properly report taxable dividend or
interest income on a Federal income tax return. Furthermore, the IRS may
notify the Fund to institute backup withholding if the IRS determines a
shareholder's TIN is incorrect or if a shareholder has not properly reported
taxable dividend and interest income on a Federal income tax return.
           page 18
          A TIN is either the Social Security number or employer
identification number of the record owner of the account. Any tax withheld as
a result of backup withholding does not constitute an additional tax imposed
on the record owner of the account, and may be claimed as a credit on the
record owner's Federal income tax return.

          Management of the Fund believes that the Fund has qualified for the
fiscal year ended January 31, 1995 as a "regulated investment company" under
the Code. The Fund intends to continue to so qualify if such qualification is
in the best interests of its shareholders. Such qualification relieves the
Fund of any liability for Federal income tax to the extent its earnings are
distributed in accordance with applicable provisions of the Code. The Fund is
subject to a non-deductible 4% excise tax, measured with respect to certain
undistributed amounts of taxable investment income and capital gains.

          You should consult your tax adviser regarding specific questions as
to Federal, state or local taxes.
                       GENERAL INFORMATION
          The Fund was organized as an unincorporated business trust under
the laws of the Commonwealth of Massachusetts pursuant to an Agreement and
Declaration of Trust (the "Trust Agreement") dated September 12, 1990, and
commenced operations on March 1, 1991. The Trustees have authorized an
unlimited number of shares of beneficial interest, par value $.001 per share.
Each share has one vote.
          Under Massachusetts law, shareholders could, under certain
circumstances, be held personally liable for the obligations of the Fund.
However, the Trust Agreement disclaims shareholder liability for acts or
obligations of the Fund and requires that notice of such disclaimer be given
in each agreement, obligation or instrument entered into or executed by the
Fund or a Trustee. The Trust Agreement provides for indemnification from the
Fund's property for all losses and expenses of any shareholder held
personally liable for the obligations of the Fund. Thus, the risk of a
shareholder's incurring financial loss on account of shareholder liability is
limited to circumstances in which the Fund itself would be unable to meet its
obligations, a possibility which management believes is remote. Upon payment
of any liability incurred by the Fund, the shareholder paying such liability
will be entitled to reimbursement from the general assets of the Fund. The
Trustees intend to conduct the operations of the Fund in such a way so as to
avoid, as far as possible, ultimate liability of the shareholders for
liabilities of the Fund. As discussed under "Management of the Fund" in the
Statement of Additional Information, the Fund ordinarily will not hold
shareholder meetings; however, shareholders under certain circumstances may
have the right to call a meeting of shareholders for the purpose of voting to
remove Trustees.
          The Transfer Agent maintains a record of your ownership and sends
confirmations and statements of account. Shareholder inquiries may be made by
writing to the Fund at 144 Glenn Curtiss Boulevard, Uniondale, New York
11556-0144, or by calling toll free 1-800-645-6561.
          NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE
ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS AND IN THE
FUND'S OFFICIAL SALES LITERATURE IN CONNECTION WITH THE OFFER OF THE FUND'S
SHARES, AND, IF GIVEN OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS MUST
NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE FUND. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFER IN ANY STATE IN WHICH, OR TO ANY PERSON TO WHOM,
SUCH OFFERING MAY NOT LAWFULLY BE MADE.
              Page 19
DREYFUS
Massachusetts
Municipal
Money Market
Fund
Prospectus
(LIONLOGO)

   

First Albany
Corporation
(LOGO)
Broker-Dealer

    

Copy Rights 1995 Dreyfus Service Corporation
                                         639P8053195



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