CALVERT CASH RESERVES
497, 1996-06-12
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PROSPECTUS --
January 31, 1996, As Revised June 1, 1996


                          Calvert Cash Reserves
                         Institutional Prime Fund
             4550 Montgomery Avenue, Bethesda, Maryland 20814
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INVESTMENT OBJECTIVE AND POLICIES

CALVERT CASH RESERVES Institutional Prime Fund (the "Fund") is a money
market fund which seeks to obtain the highest level of current income,
consistent with preservation of capital and liquidity, that is available
through investments in specified money market instruments. The Fund's
assets are invested in certificates of deposit of major banks, prime
commercial paper and high-grade short-term corporate obligations, and
short-term U.S. Government and agency securities. The investments mature
in 13 months year or less, with an average weighted maturity of 90 days
or less. The Fund seeks to maintain a constant net asset value of $1.00
per share for the Fund. It is an operating policy of the Fund that it
will not invest in A2/P2 commercial paper. 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 successful in maintaining a constant net
asset value of $1.00 per share.

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TO OPEN AN ACCOUNT
- --------------------------------------------------------------------------

Complete and return the enclosed Account Application. Minimum initial
investment is $1,000,000.

ABOUT THIS PROSPECTUS

Please read this Prospectus before investing. It is designed to provide
you with information you ought to know before investing and to help you
decide if the Fund's goals match your own. Keep this document for future
reference.

A Statement of Additional Information (dated January 31, 1996, as
revised June 1, 1996) for the Fund has been filed with the Securities
and Exchange Commission and is incorporated by reference. This free
Statement is available upon request from the Fund: 800-317-2274.

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
FEDERAL OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

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

- -------------------------------------------------------------------------------
FUND EXPENSES

A.  Shareholder Transaction Expenses         Institutional Prime Fund
    Sales Load on Purchases                  None
    Sales Load on Reinvested Dividends       None
    Deferred Sales Load                      None
    Redemption Fees                          None
    Exchange Fee                             None

B.  Annual Fund Operating Expenses (as a
    percentage of average net assets)
    Management Fees                          0.30%
    Rule 12b-1 Fees                          None
    Other Expenses                           0.06%
    Total Fund Operating Expenses            0.36%


C. Example:       You would pay the following expenses on a $1,000
investment, assuming (1) 5% annual return; and (2) redemption at the end
of each period:

               1 Year         3 Years      5 Years        10 Years
               $ 4            $ 12         $ 20            $ 46

The example, which is hypothetical, should not be considered a
representation of past or future expenses. Actual expenses may be higher
or lower than those shown.

Explanation of Table: The purpose of the table is to assist you in
understanding the various costs and expenses that an investor in the
Fund may bear directly (shareholder transaction costs) or indirectly
(annual fund operating expenses).

      A.  Shareholder Transaction Expenses are charges you pay when you
buy or sell shares of the Funds. If you request a wire redemption of
less than $50,000, you may be charged a $5 wire fee.

      B.  Annual Fund Operating Expenses have been restated to reflect
expenses anticipated in the current fiscal year. Management Fees are
paid by the Fund to Calvert Asset Management Company, Inc. ("Advisor")
for managing its investments and business affairs. The Fund incurs Other
Expenses for maintaining shareholder records, furnishing shareholder
statements and reports, and other services. Management Fees and Other
Expenses have already been reflected in the Fund's yield and are not
charged directly to individual shareholder accounts. Please refer to the
section "Management of the Fund" for further information.

FINANCIAL HIGHLIGHTS

The following table provides information about the Fund's financial
history. It expresses the information in terms of a single share
outstanding throughout each period. The table has been audited by those
independent accountants whose reports are included in the respective
Annual Reports to Shareholders. The table should be read in conjunction
with the financial statements and their related notes. The current
Annual Report to Shareholders is incorporated by reference into the
Statement of Additional Information.

<TABLE>
<CAPTION>

Year Ended September 30,                         1995                1994
Net asset value, beginning of year               $1.00               $1.00

<S>                                               <C>                 <C>

Income from investment operations
     Net investment income                       .045                .028

Distributions from
     Net investment income                       (.045)             (.028)

Net asset value, end of year                    $1.00              $1.00

Total return<F1>                                 4.55%              2.78%

Ratio to average net assets
     Net investment income                       4.53%              2.75%
     Total expenses<F2>                          1.41%                --
     Net expenses                                1.39%              1.23%
     Expenses reimbursed and/or waived             --                 --

Net assets, end of year (in thousands)           $26,775            $99,973


Number of shares outstanding at
end of year (in thousands)                       26,821             100,024


<FN>
<F1> Total return prior to 1994 is not audited.
<F2> Effective September 30, 1995, this ratio reflects total expenses
before reduction for fees paid indirectly; such reductions are included
in the ratio of net expenses.
</FN>
</TABLE>


<TABLE>
<CAPTION>

Year Ended September 30,                         1993                1992
Net asset value, beginning of year               $1.00               $1.00
<S>                                               <C>                <C>

Income from investment operations
     Net investment income                       .025                .037

Distributions from
     Net investment income                       (.025)             (.037)

Net asset value, end of year                     $1.00               $1.00

Total return<F3>                                  2.59%               3.72%

Ratio to average net assets
     Net investment income                       2.48%               3.69%
     Total expenses<F4>                            --                  --
     Net expenses                                 .92%                .87%
     Expenses reimbursed and/or waived             --                  --

Net assets, end of year (in thousands)           $102,235           $106,851

Number of shares outstanding at
end of year (in thousands)                        102,370            106,897  

<FN>
<F3> Total return prior to 1994 is not audited.
<F4> Effective September 30, 1995, this ratio reflects total expenses
before reduction for fees paid indirectly; such reductions are included
in the ratio of net expenses.
</FN>
</TABLE>


<TABLE>
<CAPTION>
 ..........................................................................
Year Ended September 30,                         1991                1990
Net asset value, beginning of year               $1.00               $1.00
<S>                                               <C>                 <C>   

Income from investment operations
     Net investment income                         .061               .074

Distributions from
     Net investment income                        (.061)             (.074)

Net asset value, end of year                     $1.00              $1.00

Total return<F1>                                  6.27%              7.71%

Ratio to average net assets
     Net investment income                        6.09%              7.45%
     Total expenses<F2>                            --                  --
     Net expenses                                  .93%                .96%
     Expenses reimbursed and/or waived              --                 .13%

Net assets, end of year (in thousands)           $119,316           $117,684

Number of shares outstanding at
end of year (in thousands)                       119,362             117,699
<FN>
<F1> Total return prior to 1994 is not audited.
<F2> Effective September 30, 1995, this ratio reflects total expenses
before reduction for fees paid indirectly; such reductions are included
in the ratio of net expenses.
</FN>
</TABLE>


<TABLE>
<CAPTION>

Year Ended September 30,                         1989                1988
Net asset value, beginning of year               $1.00               $1.00
<S>                                              <C>                  <C>    

Income from investment operations
     Net investment income                        .083                .067
 
Distributions from
     Net investment income                       (.083)              (.067)


Net asset value, end of year                     $1.00               $1.00

Total return<F5>                                  8.69%               6.99%

Ratio to average net assets
     Net investment income                        8.27%               6.44%
     Total expenses<F6>                             --                  --
     Net expenses                                  .91%                .87%
     Expenses reimbursed and/or waived             .12%                .25%
  
Net assets, end of year (in thousands)           $156,777             $91,640


Number of shares outstanding at
end of year (in thousands)                        156,797              91,660
<FN>
<F5> Total return prior to 1994 is not audited.
<F6> Effective September 30, 1995, this ratio reflects total expenses
before reduction for fees paid indirectly; such reductions are included
in the ratio of net expenses.
</FN>
</TABLE>



<TABLE>
<CAPTION>
 .........................................................................
Year Ended September 30,                         1987                1986
Net asset value, beginning of year               $1.00               $1.00
<S>                                              <C>                 <C>

Income from investment operations
     Net investment income                       .057                .067

Distributions from
     Net investment income                       (.057)             (.067)

Net asset value, end of year                     $1.00               $1.00

Total return<F1>                                  6.07%               6.16%

Ratio to average net assets
     Net investment income                        5.56%               6.47%
     Total expenses<F2>                             --                  --
     Net expenses                                  .85%                .85%
     Expenses reimbursed and/or waived             .26%                .51%

Net assets, end of year (in thousands)           $63,134            $52,807


Number of shares outstanding at
end of year (in thousands)                       63,138              52,807
<FN>
<F1> Total return prior to 1994 is not audited.
<F2> Effective September 30, 1995, this ratio reflects total expenses
before reduction for fees paid indirectly; such reductions are included
in the ratio of net expenses.
</FN>
</TABLE>



INVESTMENT OBJECTIVE AND POLICIES

Investment Objective: The Fund seeks to earn the highest level of
current income, consistent with preservation of capital and liquidity.

Calvert Cash Reserves Institutional Prime Fund is a diversified money
market fund. Its objective is to earn the highest level of current
income, consistent with preservation of capital and liquidity, that is
available through investment in specified money market instruments. The
Fund's assets are invested in securities maturing in 13 months or less,
and it maintains an average weighted maturity of 90 days or less. It is
the operating policy of the Fund to invest in first-tier securities,
according to Rule 2a-7 of the Investment Company Act of 1940.

Institutional Prime Fund invests primarily in CDs, prime commercial
paper, and U.S. Government Obligations.

Institutional Prime Fund invests in certificates of deposit and other
obligations of banks having total assets of at least $1 billion, prime
commercial paper and high grade (Aaa or Aa rated or equivalent quality)
short-term corporate obligations, including participation interests in
loans extended to issuers of such obligations, and obligations of the
U.S. Government, its agencies and instrumentalities. Such securities may
be purchased subject to repurchase agreements with recognized securities
dealers and banks. The Fund may invest more than 25% of its assets in
obligations of banks. See the Statement of Additional Information,
"Appendix, Commercial Paper and Bond Ratings." Also, the Fund may invest
in high-quality, U.S. dollar-denominated international money market
instruments, and up to 5% of its assets in reverse repurchase agreements.

U.S. Government Obligations

Obligations issued by the U.S. Treasury, such as U.S. Treasury bills,
notes and bonds, are supported by the full faith and credit of the U.S.
Government.

Certain obligations issued or guaranteed by a U.S. Government agency or
instrumentality are supported by the full faith and credit of the U.S.
Government. These include obligations issued by the Export-Import Bank,
Farmers Home Administration, Government National Mortgage Association,
Postal Service, Merchant Marine, and Washington Metropolitan Area
Transit Authority.

The Fund may also invest in other U.S. Government agency or
instrumentality obligations which are supported only by the credit of
the agency or instrumentality and may be further supported by the right
of the issuer to borrow from the U.S. Treasury.

Repurchase Agreements

The Fund may enter into repurchase agreements. In a repurchase
agreement, the Fund buys a security subject to the right and obligation
to sell it back at a higher price. These transactions must be fully
secured at all times, but they involve some credit risk to the Fund if
the other party defaults on its obligation and the Fund is delayed or
prevented from liquidating the collateral.

Reverse Repurchase Agreements

The Fund may engage in reverse repurchase agreements. In a reverse
repurchase agreement, the Fund sells a security subject to the right and
obligation to buy it back at a higher price. The Fund then invests the
proceeds from the transaction in another obligation in which it is
authorized to invest. In order to minimize any risk involved, the Fund
maintains in a segregated account liquid assets equal in value to the
repurchase price, and currently intends to limit its borrowing due to
reverse repurchase agreements to only 5% of total assets.

Bank CDs

The Fund may also invest in certificates of deposit and other debt
obligations of commercial banks, savings banks, and savings and loan
associations having assets of less than $1 billion, provided that the
principal amount of such certificate is insured in full by the Federal
Deposit Insurance Corporation ("FDIC"). The FDIC presently insures
accounts up to $100,000; interest earned above $100,000 is not insured
by the FDIC.

When-Issued Purchases

Purchasing obligations for future delivery or on a "when-issued" basis
may increase the Fund's overall investment exposure and involves a risk
of loss if the value of the securities declines prior to the settlement
date. The transactions are fully secured at all times.

Variable Rate Obligations

The Fund may invest in variable and floating rate obligations. Variable
rate obligations have a yield which is adjusted periodically based upon
changes in the level of prevailing interest rates. Floating rate
obligations have an interest rate fixed to a known lending rate, such as
the prime rate, and are automatically adjusted when that rate changes.
Variable and floating rate obligations lessen the capital fluctuations
usually inherent in fixed income investments, to diminish the risk of
capital depreciation of Fund investments and Fund shares; but this also
means that should interest rates decline, the yield of the Fund will
decline and the Fund would not have as many opportunities for capital
appreciation of Fund investments.

Demand Notes and Temporary Investments

The Fund may invest in floating rate and variable rate demand notes.
Demand notes provide that the holder may demand payment of the note at
its par value plus accrued interest by giving notice to the issuer. To
ensure the ability of the issuer to make payment upon such demand, the
note may be supported by an unconditional bank letter of credit.

The Fund may invest in structured money market instruments. It invests
only in high-quality instruments (rated in one of the two highest rating
categories, or if unrated, of comparable credit quality) that meet the
requirements of SEC Rule 2a-7 regarding credit quality and maturity,
except that, as an operating policy, the Fund will only purchase A1/P1
commercial paper (first tier), rather than A1/P1 and A2/P2 commercial
paper as allowed by SEC Rule 2a-7. See the Statement of Additional
Information.

Other Policies

The Fund has adopted certain fundamental investment restrictions which
are discussed in detail in the Statement of Additional Information.
Unless specifically noted otherwise, the investment objective, policies
and restrictions of the Fund are fundamental and may not be changed
without shareholder approval. There can be no assurance that the Fund
will be successful in meeting its investment objective.

YIELD

Yield refers to income generated by an investment over a period of time.

From time to time, the Fund may advertise "yield" and "effective yield."
Yield figures are based on historical earnings and are not intended to
indicate future performance. The "yield" refers to the actual income
generated by an investment in the Fund over a particular base period,
stated in the advertisement. If the base period is less than one year,
the yield will be "annualized." That is, the amount of income generated
by the investment during the base period is assumed to be generated over
a one-year 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.

MANAGEMENT OF THE FUND

The Board of Trustees supervises the activities and reviews its
contracts with companies that provide the Fund with services.

The Fund is the only series of Calvert Cash Reserves, a Massachusetts
business trust organized on March 16, 1982., Prior to June 30 1996,
Calvert Cash Reserves was doing business as Money Management Plus. In
October, 1992, Prime Portfolio began offering a second class of shares,
the CCR Prime Shares, which was discontinued during 1994.

The Fund is an open-end diversified management investment company. The
Fund is not required to hold annual shareholder meetings, but special
meetings may be called for certain purposes such as electing Trustees,
changing fundamental policies, or approving a management contract. As a
shareholder, you receive one vote for each share you own.

Calvert Group is one of the largest investment management firms in the
Washington, D.C. area.

Calvert Group, Ltd., parent of the Funds' investment advisor, transfer
agent, and distributor, is a subsidiary of Acacia Mutual Life Insurance
Company of Washington, D.C. Calvert Group is one of the largest
investment management firms in the Washington, D.C. area. Calvert Group,
Ltd. and its subsidiaries are located at 4550 Montgomery Avenue, Suite
1000N, Bethesda, Maryland 20814. As of September 30, 1995, Calvert Group
managed and administered assets in excess of $4.8 billion and more than
200,000 shareholder and depositor accounts.

Calvert Asset Management serves as Advisor to the Funds.

Calvert Asset Management Company, Inc. (the "Advisor") is the Fund's
investment advisor. The Advisor provides the Fund with investment
supervision and management; administrative services and office space;
furnishes executive and other personnel to the Fund; and pays the
salaries and fees of all Trustees who are affiliated persons of the
Advisor. The Advisor may also assume and pay certain advertising and
promotional expenses of the Fund and reserves the right to compensate
broker-dealers in return for their promotional or administrative
services. The Advisor has agreed to limit the Fund's expenses to the
most restrictive state limitation in effect.

The Advisor receives a fee based on a percentage of the Fund's assets.

Pursuant to the Investment Advisory Agreement, the Advisor is entitled
to, and did receive for fiscal 1995, an annual advisory fee of 0.50% of
the Fund's respective average daily net assets. Beginning July 1, 1996,
however, the Advisor will voluntarily waive a portion of its advisory
fee.

Calvert Administrative Services Company provides administrative services
for the Fund.

Calvert  Administrative  Services  Company  ("CASC"),  an affiliate of the
Advisor,  has been  retained by Calvert Cash  Reserves to provide  certain
administrative   services   necessary  to  the  conduct  of  its  affairs,
including the preparation of regulatory  filings and shareholder  reports,
the daily  determination  of its net asset value per share and  dividends,
and the maintenance of its portfolio and general accounting  records.  For
providing  such  services,  CASC is  entitled to an annual fee of 0.05% of
the Fund's average daily net assets.

Calvert Distributors, Inc. serves as underwriter to market the Fund's
shares.

Calvert Distributors, Inc. ("CDI") is the Fund's principal underwriter
and distributor. Under the terms of its underwriting agreement with the
Fund, CDI markets and distributes the Fund's shares and is responsible
for preparing advertising and sales literature, and printing and mailing
of prospectuses to prospective investors. CDI does not receive any
compensation from the Fund's Class A Shares.

The transfer agent keeps your account records.

Calvert Shareholder Services, Inc. is the Fund's transfer, dividend
disbursing and shareholder servicing agent.

SHAREHOLDER GUIDE

Opening An Account

You can buy shares of the Fund in several ways which are described here
and in the chart below.

An account application accompanies this prospectus. A completed and
signed application is required for each new account you open. Additional
forms may be required from corporations, associations, and certain
fiduciaries. If you have any questions or need extra applications, call
Calvert Group at 800-317-2274.

Share Price

The Fund's shares are sold without a sales charge.

The price of one share is its "net asset value," or NAV. NAV is computed
by adding the value of a Fund's investments plus cash and other assets,
deducting liabilities and then dividing the result by the number of
shares outstanding. The NAV is calculated at the close of the Fund's
business day, which coincides with the closing of the regular session of
the New York Stock Exchange (normally 4:00 p.m. Eastern time). The Fund
is open for business each day the New York Stock Exchange is open. The
Fund's securities are valued according to the "amortized cost" method,
which is intended to stabilize the NAV at $1.00 per share.

All purchases of Fund shares will be confirmed and credited to your
account in full and fractional shares (rounded to the nearest 1/100 of a
share). The Fund may send monthly statements in lieu of immediate
confirmations of purchases and redemptions.

HOW TO BUY SHARES

Method                      New Accounts              Additional Investments

By Wire                     $1,000,000 minimum        No minimum

By Exchange                 $1,000,000 minimum        No minimum
(From your account in another Calvert Group Fund)

When opening an account by exchange, your new account must be
established with the same name(s), address and taxpayer identification
number as your existing Calvert account.

WHEN YOUR ACCOUNT WILL BE CREDITED

Before you buy shares, please read the following information to make
sure your investment is accepted and credited properly.

Your purchase will be processed at the net asset value calculated after
your order is received and accepted. A telephone order placed to Calvert
Institutional Marketing Group by 1:00 p.m. Eastern time will receive the
dividend on Fund shares declared that day if federal funds are received
by the custodian by 5 p.m. Eastern time. If no telephone order is
placed, a wire must be received by 12:30 p.m. Eastern time to earn that
business day's dividend. Exchanges begin earning dividends the next
business day after the exchange request is received by mail or telephone.

All of your purchases must be made by wire. No cash or checks will be
accepted. The Fund reserves the right to suspend the offering of shares
for a period of time or to reject any specific purchase order.

EXCHANGES

You may exchange shares of the Fund for shares of other Calvert Group
Funds.

If your investment goals change, the Calvert Group Family of Funds has a
variety of investment alternatives that includes common stock funds,
tax-exempt and corporate bond funds, and money market funds. The
exchange privilege is a convenient way to buy shares in other Calvert
Group Funds in order to respond to changes in your goals or in market
conditions. Before you make an exchange from a Fund or Portfolio, please
note the following:

Each exchange represents the sale of shares of one Fund and the purchase
of shares of another.

      Call the Calvert Institutional Marketing Group for information and
     a prospectus for any of Calvert's other Funds registered in your
     state. Read the prospectus of the Fund or Portfolio into which you
     want to exchange for relevant information.

      Complete and sign an application for an account in that Fund or
     Portfolio , taking care to register your new account in the same
     name and taxpayer identification number as your existing Calvert
     account(s). Exchange instructions may then be given by telephone if
     telephone redemptions have been authorized and the shares are not in
     certificate form.

      Shares on which you have already paid a sales charge at Calvert
     Group may be exchanged into another Fund at no additional charge.
     Shares acquired by reinvestment of dividends or distributions may be
     exchanged into another Fund at no additional charge. Except for
     money market funds, if you make a purchase at NAV, you may exchange
     that amount to another fund at no additional sales charge.

The Fund reserves the right to terminate or modify the exchange
privilege with 60 days written notice.

OTHER CALVERT GROUP SERVICES

Calvert Information Network

24 hour performance and prices

Calvert Group has a round-the-clock telephone service that lets existing
customers use a push button phone to obtain prices, performance
information, and account balances. Complete instructions for this
service may be found on the back of each statement.

Telephone Transactions

Calvert may record all telephone calls.

If you have telephone transaction privileges, you may purchase, redeem,
or exchange shares, and wire funds by telephone. You automatically have
telephone privileges unless you elect otherwise. The Fund, the transfer
agent and their affiliates are not liable for acting in good faith on
telephone instructions relating to your account, so long as they follow
reasonable procedures to determine that the telephone instructions are
genuine. Such procedures may include recording the telephone calls and
requiring some form of personal identification. You should verify the
accuracy of telephone transactions immediately upon receipt of your
confirmation statement.

Complete the account application for the easiest way to establish
services.

The easiest way to establish optional services on your Calvert Group
account is to select the options you desire when you complete your
account application. If you wish to add other options later, you may
have to provide us with additional information and a signature
guarantee. Please call the Calvert Institutional Marketing Group at
800-317-2274 for further assistance. For our mutual protection, we may
require a signature guarantee on certain written transaction requests. A
signature guarantee verifies the authenticity of your signature, and may
be obtained from any bank, savings and loan association, credit union,
trust company, broker-dealer firm or member of a domestic stock
exchange. A signature guarantee cannot be provided by a notary public.

Special Services and Charges

The Fund pays for shareholder services but not for special services that
are required by a few shareholders, such as a request for a historical
transcript of an account. You may be required to pay a research fee for
these special services.

HOW TO SELL YOUR SHARES

You may redeem all or a portion of your shares on any business day. Your
shares will be redeemed at the next net asset value calculated after
your redemption request is received and accepted.

Redemption Requirements To Remember

To ensure acceptance of your redemption request, please follow the
procedures described here and below.

Once your shares are redeemed, the proceeds will normally be sent to you
on the next business day, but if making immediate payment could
adversely affect the Fund, it may take up to seven (7) days. When the
New York Stock Exchange is closed (or when trading is restricted) for
any reason other than its customary weekend or holiday closings, or
under any emergency circumstances as determined by the Securities and
Exchange Commission, redemptions may be suspended or payment dates
postponed.

If you sell shares by telephone or written request, you will receive
dividends through the date the request is received and processed.
Calvert encourages you to notify the Institutional Marketing Group for
any redemption over $10 million per day.

Minimum account balance

Please maintain a balance in your account of at least $1,000,000. If,
due to redemptions, the account falls below $1,000,000, or you fail to
invest at least $1,000,000, it may be closed and the proceeds mailed to
you at the address of record. You will be given notice that your account
will be closed after 30 days unless you make an additional investment to
increase your account balance to the $1,000,000 minimum. The Board of
Trustees approved a $1,000,000 minimum balance per account, effective
May 15, 1996.

HOW TO SELL YOUR SHARES BY . . .

Telephone

Please call the Institutional Marketing Group at 800-317-2274. You may
redeem shares from your account by telephone and have your money mailed
to your address of record or wired to a bank you have previously
authorized. Same-day wire redemptions may be ordered by calling the
Institutional Marketing Group by noon Eastern time. All other wires will
be transmitted the next business day. A charge of $5 may be imposed on
wire transfers of less than $50,000. See "Telephone Transactions."

Exchange to Another Calvert Group Fund

You must meet the minimum investment requirement of the other Calvert
Group Fund or Fund. You can only exchange between accounts with
identical names, addresses and taxpayer identification number, unless
previously authorized with a signature-guaranteed letter.

Mail To:  Calvert Group Institutional Marketing Group, 4550 Montgomery
Avenue, Bethesda, Maryland 20814

You may redeem available shares from your account at any time by sending
a letter of instruction, including your name, account and Fund number,
the number of shares or dollar amount, and where you want the money to
be sent. Additional requirements, below, may apply to your account. The
letter of instruction must be signed by all required authorized signers.
If you want the money to be wired to a bank not previously authorized,
then a voided bank check must be enclosed with your letter. If you do
not have a voided check, you must enclose a letter on corporate
letterhead, signed by one or more authorized signers.

DIVIDENDS AND TAXES

Each year, the Fund distributes substantially all of its net investment
income to shareholders.

Dividends from the Fund's net investment income are declared daily and
paid monthly. Net investment income consists of interest income, net
short-term capital gains, if any, and dividends declared and paid on
investments, less expenses.

Dividend payment options

Dividends and any distributions are automatically reinvested in
additional shares of the same Fund, unless you elect to have the
dividends of $10 or more paid in cash (by check). Dividends and
distributions from the Fund may be invested in shares of any other
Calvert Group Fund or Portfolio  with no additional sales charge. You
must notify the Fund in writing to change your payment options. If you
elect to have dividends and/or distributions paid in cash, and the U.S.
Postal Service cannot deliver the check, or if it remains uncashed for
six months, it, as well as future dividends and distributions, will be
reinvested in additional shares.

Federal Taxes

In January, the Fund will mail you Form 1099-DIV indicating the federal
tax status of dividends and any capital gain distributions paid to you
by the Fund during the past year. Dividends and distributions are
taxable to you regardless of whether they are taken in cash or
reinvested. Dividends, including short-term capital gains, are taxable
as ordinary income. Distributions from long-term capital gains are
taxable as long-term capital gains, regardless of how long you have
owned Fund shares. A portion of the Fund's dividends may qualify for the
dividends received deduction for corporations.

Other Tax Information

In addition to federal taxes, you may be subject to state or local taxes
on your investment, depending on the laws in your area. You will be
notified to the extent, if any, that dividends reflect interest received
from U.S. government securities. Such dividends may be exempt from
certain state income taxes.

Taxpayer Identification Number

If we do not have your correct Social Security or Taxpayer
Identification Number ("TIN") and a signed certified application or Form
W-9, Federal law requires the Fund to withhold 31% of your dividends. In
addition, you may be subject to a fine. You will also be prohibited from
opening another account by exchange. If this TIN information is not
received within 60 days after your account is established, your account
may be redeemed at the current NAV on the date of redemption. The Fund
reserves the right to reject any new account or any purchase order for
failure to supply a certified TIN.



To Open an Account:                                    Prospectus
     800-317-2274                                      January 31, 1996
                                                       As revised June
1, 1996

Performance and Prices:                                Calvert CashReserves
Calvert Information Network                            Institutional Prime Fund
24 hours, 7 days a week
     800-317-2274

Service for Existing Account:
     Shareholders              800-317-2274
     Brokers                   800-368-2746

TDD for Hearing Impaired:
     800-541-1524

Calvert Group Web-Site
Address: http://www.calvertgroup.com

PRINCIPAL UNDERWRITER
Calvert Distributors, Inc.
4550 Montgomery Avenue
Suite 1000N
Bethesda, Maryland 20814


Table of Contents

Fund Expenses
Financial Highlights
Investment Objective and Policies
Yield
Management of the Fund
SHAREHOLDER GUIDE:
How to Buy Shares
When Your Account Will Be Credited
Exchanges
Other Calvert Group Services
How to Sell Your Shares
Selling Your Shares
Dividends and Taxes



<PAGE>



                                                              

                         Calvert Cash Reserves 
                         Institutional Prime Fund 

                   Statement of Additional Information 
                             January 31, 1996
                             As Revised June 1, 1996 


INVESTMENT ADVISOR                                           TRANSFER AGENT 
Calvert Asset Management Company, Inc.   Calvert Shareholder Services, Inc. 
4550 Montgomery Avenue                               4550 Montgomery Avenue 
Suite 1000N                                                     Suite 1000N 
Bethesda, Maryland 20814                           Bethesda, Maryland 20814 

INDEPENDENT ACCOUNTANTS                               PRINCIPAL UNDERWRITER 
Coopers & Lybrand, L.L.P.                        Calvert Distributors, Inc. 
217 Redwood Street                                   4550 Montgomery Avenue 
Baltimore, Maryland 21202-3316                                  Suite 1000N 
                                                   Bethesda, Maryland 20814 


                        TABLE OF CONTENTS 
                  Investment Objective and Policies            1     
                  Investment Restrictions                      4     
                  Purchase and Redemption of Shares            5     
                  Dividends and Taxes                          6    
                  Valuation of Shares                          6     
                  Calculation of Yield                         7     
                  Advertising                                  7 
                  Trustees and Officers                        8     
                  Investment Advisor                           9     
                  Transfer and Shareholder                      
                  Servicing Agent                             10    
                  Independent Accountants and 
                  Custodians                                  10      
                  Method of Distribution                      10    
                  Portfolio Transactions                      11    
                  General Information                         11     
                  Financial Statements                        11     
                  Appendix                                    12     

<PAGE>

                                                               

STATEMENT OF ADDITIONAL INFORMATION-January 31, 1996, As Revised June 1, 1996 

                          Calvert Cash Reserves 
                          Institutional Prime Fund 
             4550 Montgomery Avenue, Bethesda, Maryland 20814 

========================================================================== 
              New Account      (800) 368-2748     Shareholder   (800) 368-2745 
              Information:(301) 951-4820          Services:     (301) 951-4810 
========================================================================== 
              Broker           (800) 368-2746     TDD for  the Hearing- 
========================================================================== 
========================================================================== 
              Services:        (301) 951-4850     Impaired:     (800) 541-1524 
========================================================================== 

         This  Statement of  Additional  Information  is not a prospectus. 
Investors   should  read  the  Statement  of  Additional   Information  in 
conjunction with the Fund's  Prospectus  dated January 31,1996, as revised 
June 1, 1996, which may be obtained free of charge by writing or calling the 
Fund. 

========================================================================== 
                    INVESTMENT OBJECTIVE AND POLICIES 
========================================================================== 

         Calvert Cash Reserves Institutional Prime Fund (the "Fund") is a money 
market  fund which seeks to obtain the  highest  level of current  income, 
consistent  with safety,  preservation  of capital and liquidity,  that is 
available  through  investment  in  specified  money  market  instruments. 
Currently,  the Fund's  assets are invested in  securities  maturing in 13 
months or less and the Fund maintains an average  weighted  maturity of 90 
days or less.  Fund  investments  are valued at amortized  cost.  The Fund 
intends to  maintain a constant  net asset  value of $1.00 per share.  The 
Fund invests exclusively in short-term money market instruments. 

The Fund will be invested exclusively in: 
         (1) U.S.  dollar-denominated  certificates  of deposit,  bankers' 
acceptances  and other debt  obligations  of U.S. banks and their branches 
located  outside  of the  U.S.  and of U.S.  branches  of  foreign  banks, 
provided  that the bank has total  assets of at least $1  billion  (or the 
equivalent in other  currencies)  or, if its total assets are less than $1 
billion,  the  principal  amount of such  obligation is insured in full by 
the Federal Deposit Insurance Corporation; 
         (2) commercial  paper of both domestic and foreign  issuers which 
at the date of  investment  is rated A-1 by Standard & Poor's  Corporation 
or Prime-1 by Moody's  Investors  Service,  Inc.,  or, if  unrated,  is of 
comparable  quality as determined by the Advisor under the  supervision of 
the Board of Trustees; 
         (3) short-term (one year or less)  corporate  obligations of both 
domestic and foreign  issuers  which at the date of  investment  are rated 
AAA or AA by  Standard  & Poor's or Aaa or Aa by Moody's  or, if  unrated, 
are  of  comparable  quality  as  determined  by  the  Advisor  under  the 
supervision of the Board of Trustees; 
         (4)  obligations   issued  or  guaranteed  as  to  principal  and 
interest by the U.S. Government,  its agencies and  instrumentalities,  or 
by  foreign  governments,  their  agencies  and  instrumentalities,  or by 
international agencies and instrumentalities; and 
         (5)  such  obligations  subject  to  repurchase  agreements  with 
recognized securities dealers and banks. 

         While  the Fund  invests  only in  high-grade,  short-term  money 
market  instruments,  there can be, of course,  no assurance that the Fund 
will be successful in meeting its  investment  objective or in maintaining 
a constant net asset value of $1.00 per share  because  there are inherent 
risks in the ownership of any  investment.  An increase in interest  rates 
will  generally  reduce  the value of Fund  investments,  and a decline in 
interest  rates will  generally  increase  the value of Fund  investments. 
Investments  in  obligations  not  guaranteed by the full faith and credit 
of the U.S.  Government  are  subject to the ability of the issuer to make 
payment  at  maturity.  Dividends  paid  by the  Fund  will  fluctuate  as 
interest  rates  and  net  investment  income  fluctuate.  The  Fund  will 
attempt,  through careful management and diversification,  to reduce these 
risks and enhance the  opportunities  for higher  income and greater price 
stability. 

Repurchase Agreements 
         The Fund  engages  in  repurchase  agreements  in order to earn a 
higher  rate of  return  than it could  earn  simply by  investing  in the 
obligation  which is the subject of the repurchase  agreement.  Repurchase 
agreements are not, however, without risk. 
         In the event of the  bankruptcy  of a seller during the term of a 
repurchase  agreement,  a legal  question  exists as to  whether  the Fund 
would be deemed the owner of the  underlying  security  or would be deemed 
only to have a  security  interest  in and lien  upon such  security.  The 
Fund  will  only  engage  in   repurchase   agreements   with   recognized 
securities  dealers and banks  determined to present  minimal  credit risk 
by the Advisor  under the direction  and  supervision  of the Fund's Board 
of  Trustees.  Repurchase  agreements  are always for periods of less than 
one  year  and no more  than 10% of a Fund's  assets  may be  invested  in 
repurchase agreements not terminable within seven days. 
         In addition,  the Fund will only engage in repurchase  agreements 
reasonably  designed to secure fully during the term of the  agreement the 
seller's  obligation  to  repurchase  the  underlying  security  and  will 
monitor the market  value of the  underlying  security  during the term of 
the  agreement.  If the value of the underlying  security  declines and is 
not at least equal to the  repurchase  price due the Fund  pursuant to the 
agreement,   the  Fund  will  require  the  seller  to  pledge  additional 
securities  or cash to secure the  seller's  obligations  pursuant  to the 
agreement.  If the seller  defaults on its  obligation to  repurchase  and 
the value of the underlying  security declines,  the Fund may incur a loss 
and may incur expenses in selling the underlying security. 

Reverse Repurchase Agreements 
         The  Fund may  also  engage  in  reverse  repurchase  agreements. 
Under a reverse repurchase  agreement,  the Fund sells its securities to a 
bank or securities  dealer and agrees to repurchase  those securities from 
such party at an agreed  upon date and price  reflecting  a market rate of 
interest.  The Fund  invests the  proceeds  from each  reverse  repurchase 
agreement in  obligations  in which it is authorized  to invest.  The Fund 
intends  to  enter  into a  reverse  repurchase  agreement  only  when the 
interest  income  provided for in the obligation in which the Fund invests 
the  proceeds  is  expected  to  exceed  the  amount  the Fund will pay in 
interest to the other party to the  agreement,  plus all costs  associated 
with the  transactions.  The Fund does not intend to borrow  for  leverage 
purposes.  The Fund will only be permitted to pledge  assets to the extent 
necessary to secure borrowings and reverse repurchase agreements. 
         During the time a reverse  repurchase  agreement is  outstanding, 
the Fund will  maintain  in a  segregated  custodial  account an amount of 
cash,  U.S.  Government  securities  or other  liquid,  high-quality  debt 
securities  equal in value to the repurchase  price. The Fund will mark to 
market  the  value of  assets  held in the  segregated  account,  and will 
place  additional  assets in the account  whenever  the total value of the 
account falls below the amount required under applicable regulations. 
         The Fund's  use of reverse  repurchase  agreements  involves  the 
risk  that the other  party to the  agreements  could  become  subject  to 
bankruptcy or  liquidation  proceedings  during the period the  agreements 
are  outstanding.  In such event,  the Fund may not be able to  repurchase 
the   securities   it  has  sold  to  that  other   party.   Under   those 
circumstances,  if at the expiration of the agreement such  securities are 
of  greater  value  than  the  proceeds  obtained  by the Fund  under  the 
agreements,  the Fund may have been  better  off had it not  entered  into 
the  agreement.  However,  the Fund will  enter  into  reverse  repurchase 
agreements  only  with  banks  and  dealers  which  the  Advisor  believes 
present  minimal  credit  risks  under  guidelines  adopted  by the Fund's 
Board of Trustees.  In  addition,  the Fund bears the risk that the market 
value  of  the  securities   sold  by  the  Fund  may  decline  below  the 
agreed-upon  repurchase  price,  in which case the dealer may  request the 
Fund to post additional collateral. 

International Money Market Instruments 
         The Fund may  invest in U.S.  dollar-denominated  obligations  of 
foreign  branches of U.S. banks and U.S.  branches of foreign banks ("bank 
obligations.").  Such  bank  obligations  may  be  subject  to  risks  not 
associated  with  domestically  insured  bank  obligations.  For  example, 
foreign and domestic bank reserve requirements may differ. 
         The  Fund  may  also  invest  in  commercial  paper,   short-term 
corporate  obligations,  and  obligations  issued or guaranteed by foreign 
governments,  their agencies and  instrumentalities,  or by  international 
agencies  and  instrumentalities,  so long as such  instruments  are  U.S. 
dollar-denominated   and   meet   the   same   credit,    liquidity,   and 
concentration requirements as domestic obligations. 
         The bank  obligations  and  other  money  market  instruments  of 
foreign issuers  described above are subject to certain  additional risks. 
Payment  of  interest  and  principal  upon  these   obligations  and  the 
marketability  and liquidity of such  obligations in the secondary  market 
may also be adversely  affected by  governmental  action in the country of 
domicile  of the  branch  (generally  referred  to as  "sovereign  risk"). 
Examples of  governmental  actions would be the  imposition of exchange or 
currency controls,  interest  limitations or withholding taxes on interest 
income,  seizure of assets,  or the  declaration  of a  moratorium  on the 
payment of principal or interest.  In addition,  evidences of ownership of 
Fund  securities  may be held  outside  of the  U.S.,  and the Fund may be 
subject  to the  risks  associated  with  the  holding  of  such  property 
overseas. 
         These  instruments  are not  subject  to  currency  fluctuations, 
since they are  denominated  in U.S.  dollars.  The Advisor will  consider 
the  political  and  economic  conditions  in a country,  the  location of 
custody,  and the liquidity in selecting  such  instruments  for the Fund. 
Also, as an operating  policy,  it will only invest in bank obligations of 
foreign  branches  of  U.S.  banks  if the  parent  banks  guarantees  the 
obligation,  and where the  parent  bank  either has assets of at least $1 
billion  (or  equivalent  in other  currencies),  or is insured in full by 
the Federal Deposit Insurance Corporation. 

Obligations with Puts Attached 
         The Fund has  authority to purchase  securities  at a price which 
would result in a yield to maturity lower than that  generally  offered by 
the seller at the time of  purchase  when it can  acquire at the same time 
the right to sell the  securities  back to the  seller  at an agreed  upon 
price at any time  during a stated  period  or on a certain  date.  Such a 
right is generally denoted as a "put." 
         A  Fund  may  not   acquire   obligations   subject  to  puts  if 
immediately  thereafter,  with respect to 75% of the total  amortized cost 
value of its  assets,  that Fund  would  have  more than 5% of its  assets 
invested in securities  underlying puts from the same institution.  A Fund 
may,  however,  invest up to 10% of its  assets in  securities  underlying 
unconditional  puts  from the  same  institution.  Unconditional  puts are 
readily  exercisable  in the event of a default in payment of principal or 
interest  on the  underlying  securities.  The Fund  must  limit  its Fund 
investments,   including   puts,  to   instruments   of  high  quality  as 
determined by a nationally recognized statistical rating organization. 


When-Issued Purchases 
         Securities  purchased on a when-issued  basis and the  securities 
held in the Fund are  subject to changes  in market  value  based upon the 
public's  perception of the  creditworthiness of the issuer and changes in 
the  level  of  interest  rates  (which  will  generally  result  in  both 
changing in value in the same way, i.e.,  both  experiencing  appreciation 
when interest  rates decline and  depreciation  when interest rates rise). 
Therefore,  if in  order  to  achieve  higher  interest  income,  the Fund 
remains  substantially  fully  invested  at  the  same  time  that  it has 
purchased  securities  on a  when-issued  basis,  there  will be a greater 
possibility  that the market value of the Fund's  assets may vary.  No new 
when-issued  commitments  will be made by a Fund if more  than 50% of that 
Fund's net assets would become so committed. 
         When the time comes to pay for when-issued  securities,  the Fund 
will  meet  its  obligations  from  then  available  cash  flow,  sale  of 
securities or,  although it would not normally  expect to do so, from sale 
of the when-issued  securities  themselves  (which may have a market value 
greater or less than the Fund's  payment  obligation).  Sale of securities 
to meet  such  obligations  carries  with it a greater  potential  for the 
realization  of capital  losses  and  capital  gains  which are not exempt 
from federal income tax. 

========================================================================== 
                         INVESTMENT RESTRICTIONS 
========================================================================== 

Fundamental 
         The   foregoing   investment   objective  and  policies  and  the 
following  investment  restrictions  and  fundamental  policies may not be 
changed  without  the  consent of the  holders of a majority of the Fund's 
outstanding  shares,  including  a  majority  of the  shares  of the Fund. 
Shares have equal  rights as to voting,  except that only shares of a Fund 
are  entitled  to vote on  matters  affecting  only  that  Fund  (such  as 
changes in investment  objective,  policies or  restrictions).  A majority 
of the shares means the lesser of (i) 67% of the shares  represented  at a 
meeting at which more than 50% of the  outstanding  shares are represented 
or (ii) more than 50% of the outstanding shares. No Fund of the Fund may: 
                  (1) Purchase common stocks,  preferred  stocks, 
         warrants, or other equity securities; 
                  (2) Sell securities short,  purchase securities 
         on  margin,  or  write  put or call  options.  The  Fund 
         reserves the right,  without percentage  limitation,  to 
         purchase    securities    with   puts   attached.    See 
         "Obligations with Puts Attached"; 
                  (3)  Issue  senior  securities,  borrow  money, 
         except from banks for  temporary or  emergency  purposes 
         and then  only in an  amount  up to 10% of the  value of 
         that  Fund's  total  assets,  and,  for The  Fund  only, 
         except by  engaging  in reverse  repurchase  agreements; 
         provided,  however,  that The Fund may engage in reverse 
         repurchase  agreements so long as, at the time it enters 
         into  a  reverse  repurchase  agreement,  the  aggregate 
         proceeds    from    outstanding    reverse    repurchase 
         agreements,  when added to other outstanding  borrowings 
         permitted by this section,  do not exceed 33 1/3% of the 
         Fund's total  assets.  In order to secure any  permitted 
         borrowings  and, for The Fund only,  reverse  repurchase 
         agreements  under  this  section,  the Fund may  pledge, 
         mortgage or hypothecate its assets.  
                  (4)   Underwrite   the   securities   of  other 
         issuers,  except to the extent  that  either the sale of 
         restricted  securities  or  the  purchase  of  municipal 
         obligations  in  accordance  with the Fund's  investment 
         objective  and  policies,   either   directly  from  the 
         issuer,  or from an  underwriter  for an issuer,  may be 
         deemed an underwriting; 
                  (5) Purchase or sell real  estate,  real estate 
         investment  trust  securities,  commodities or commodity 
         contracts, or oil and gas interests,  but this shall not 
         prevent the  Tax-Free  Fund from  investing in municipal 
         obligations  secured by real estate or interests therein 
         or prevent  The Fund from  investing  (a) in  securities 
         which  are   secured  by  real  estate  or  real  estate 
         mortgages,  or (b) in the  securities  of issuers  which 
         invest or deal in commodities,  commodity futures,  oil, 
         gas,  or  other  mineral   exploration   or  development 
         programs, real estate, or real estate mortgages; 
                  (6) Purchase or retain  securities of an issuer 
         if those  trustees  of the Fund,  each of whom owns more 
         than  1/2 of 1% of the  outstanding  securities  of such 
         issuer,  together  own more than 5% of such  outstanding 
         securities; 
                  (7) Make loans to others,  except in accordance 
         with the Fund's investment objective and policies,  such 
         as the purchase of an issue of debt  securities in which 
         the  Fund  is  authorized  to  invest,  or  pursuant  to 
         contracts  providing  for the  compensation  of  service 
         providers by compensating balances; 
                  (8)  Invest in  companies  for the  purpose  of 
         exercising  control;  or invest in  securities  of other 
         investment companies,  except as they may be acquired as 
         part  of  a  merger,  consolidation  or  acquisition  of 
         assets,  or in  connection  with a  director's/trustee's 
         deferred  compensation  plan,  as  long as  there  is no 
         duplicaton of advisory fees; 
                  (9)  Invest  more than 25% of its assets in any 
         particular industry or industries,  except that the Fund 
         may invest  more than 25% of its  assets in  obligations 
         issued  or  guaranteed  by  the  U.S.  Government,   its 
         agencies or  instrumentalities.  Industrial  development 
         bonds,  where the payment of  principal  and interest is 
         the   responsibility   of  companies   within  the  same 
         industry, are grouped together as an "industry"; 
                  (10)  Invest  more  than 5% of the value of its 
         total  assets  in   securities   where  the  payment  of 
         principal  and  interest  is  the  responsibility  of  a 
         company  or  companies   with  less  than  three  years' 
         operating history. 
                  (11)  Purchase  securities of any issuer (other 
         than  obligations  of,  or  guaranteed  by,  the  United 
         States Government, its agencies or instrumentalities,  a 
         State, its political  subdivisions or  municipalities or 
         agencies  thereof) if, as a result,  (a) more than 5% of 
         the value of its total  assets  would be invested in the 
         securities  of that issuer,  or (b) more than 25% of the 
         value  of its  total  assets  would be  invested  in the 
         securities  of  issuers  in  the  same   industry.   For 
         purposes of this  restriction  regarding  The Fund only, 
         an investment in U.S. banks or U.S.  branches of foreign 
         banks is not considered an industry; 


Non-Fundamental 
                  (12)     No more  than  10% of the  Fund's  net 
         assets may be invested in illiquid securities; 
                  (13)     For     purposes     of     investment 
         restriction  number  3 above,  the  Fund has no  current 
         intention  to  allow  its   borrowings  due  to  reverse 
         repurchase agreements to exceed 5% of total assets. 

========================================================================== 
                    PURCHASE AND REDEMPTION OF SHARES 
========================================================================== 

         The Fund requires a minimum  initial  investment of $1,000,000. 
  Shares  will be held in book entry form at the Fund's transfer agent. 
No share certificates will be issued. 
         
         Amounts  redeemed  by  check  redemption  may  be  mailed  to the 
investor  without charge.  Amounts of $50,000 or more will be  transmitted  
by wire without charge by the Fund to the investor's  account at a domestic  
commercial bank that is a member of the Federal Reserve System or to a  
correspondent  bank. A charge of $5 is imposed on wire transfers of less than
$50,000.  If the investor's  bank is  not  a  Federal   Reserve   System  
member, failure of immediate notification to that bank by the correspondent 
bank could result in a delay in crediting the funds to the investor's bank 
account. 
         Existing   shareholders   who  at  any  time   desire  to  change 
instructions  already  given  must  send a  notice  either  to the  broker 
through  which  shares were  purchased  or to the Fund with a voided check 
from the bank  account  to receive  the  redemption  proceeds.  New wiring 
instructions  may be  accompanied by a voided check in lieu of a signature 
guarantee.  If a voided check does not  accompany  the  request,  then the 
request must be signature  guaranteed  by a commercial  bank,  savings and 
loan association,  trust company,  member firm of any national  securities 
exchange,  or credit  union.  Further  documentation, such as a corporate
resolution is required from corporations, fiduciaries, pension plans, and 
institutional investors. 
         The  Fund's  redemption  check  normally  will be  mailed  to the 
investor on the next  business  day  following  the date of receipt by the 
Fund of the written or telephone  redemption  request.  If the investor so 
instructs  in the  redemption  request,  the  check  will be mailed or the 
redemption  proceeds  wired to a  predesignated  account at the investor's 
bank.  Redemption  proceeds are  normally  paid in cash.  However,  at the 
sole  discretion  of the Fund,  the Fund has the right to redeem shares in 
assets other than cash for  redemption  amounts  exceeding,  in any 90-day 
period,  $250,000 or 1% of the net asset value of the Fund,  whichever  is 
less, or as allowed by law. 
         The right of  redemption  may be suspended or the date of payment 
postponed  for any  period  during  which the New York Stock  Exchange  is 
closed (other than customary weekend and holiday  closings),  when trading 
on the New York Stock Exchange is restricted,  or an emergency  exists, as 
determined  by  the  SEC,  or  if  the   Commission  has  ordered  such  a 
suspension for the  protection of  shareholders.  Redemption  proceeds are 
normally  mailed or wired the next business day after a proper  redemption 
request has been  received,  unless  redemptions  have been  suspended  or 
postponed as described above. 

========================================================================== 
                           DIVIDENDS AND TAXES 
========================================================================== 

         The Fund declares  dividends  daily and pays them monthly,  based 
on its net  investment  income.  Net  investment  income  consists  of the 
interest  income  earned on  investments  (adjusted  for  amortization  of 
original issue or market  discount or premium),  less  expenses.  Realized 
and  unrealized  gains  and  losses  are not  included  in net  investment 
income.  Net short-term  capital gains will be distributed once each year, 
although  the Fund may  distribute  them more  frequently  if necessary in 
order to  maintain  net asset value at $1.00 per share.  Distributions  of 
net capital  gains,  if any,  are  normally  declared and paid by the Fund 
once a  year;  however,  the  Fund  does  not  intend  to  make  any  such 
distributions  from securities  profits unless  available loss carryovers, 
if any, have been used or have expired. 
         In 1995 the  Fund did  qualify  and in 1996 the Fund  intends  to 
qualify as a  "regulated  investment  company"  under  Subchapter M of the 
Internal Revenue Code as amended.  By so qualifying,  the Fund will not be 
subject to federal  income  taxes,  nor to the federal  excise tax imposed 
by the Tax Reform Act of 1986, to the extent that it  distributes  its net 
investment income and realized capital gains. 
         Dividends and distributions  are automatically  reinvested at net 
asset value in  additional  shares.  Shareholders  may elect to have their 
dividends and distributions paid out monthly or quarterly in cash. The  Fund's 
dividends of net investment income  and  dividends  of  net  short-term 
capital gains,  whether taken in cash or reinvested in additional  shares, 
are  taxable to  shareholders  as  ordinary  income and do not qualify for 
the dividends received  deduction for corporations.  Net long-term capital 
gain  distributions,  if any,  will  generally be  includable as long-term 
capital  gain in the gross  income of  shareholders  who are  citizens  or 
residents of the United  States.  Whether such realized  securities  gains 
and losses are long- or  short-term  depends on the period the  securities 
are held by the Fund,  not the  period  for which  the  shareholder  holds 
shares of the Fund. 
         A  shareholder  may also be subject  to state and local  taxes on 
dividends  and   distributions   from  the  Fund.  The  Fund  will  notify 
shareholders  annually about the tax status of dividend and  distributions 
paid by the Fund and the  amount of  dividends  withheld,  if any,  during 
the  previous  year.  Many  states  do not tax  the  portion  of a  Fund's 
dividends which is derived from interest on U.S.  Government  obligations. 
State law  varies  considerably  concerning  the tax  status of  dividends 
derived  from  U.S.  Government  obligations.   Accordingly,  shareholders 
should  consult  their tax advisors  about the tax status of dividends and 
distributions from the Fund in their respective jurisdictions. 
         The   Internal   Revenue   Code   provides   that   interest   on 
indebtedness  incurred or  continued  in order to purchase or carry shares 
of  a  regulated  investment  company  which  distributes  exempt-interest 
dividends during the year is not deductible. 
         The Fund is  required to withhold  31% of any  dividends  and any 
long-term  capital gain  dividends, paid if:  (a) the  shareholder's  social  
security  number  or  other  taxpayer identification  number ("TIN") is not 
provided or an obviously  incorrect TIN is provided:  (b) the shareholder  
does not certify under penalties of perjury  that the TIN provided is the  
shareholder's  correct TIN and that the  shareholder  is not  subject  to 
backup  withholding  under  section 3406(a)(1)(C) of the Internal Revenue Code
because of  underreporting; or (c) the Fund is notified by the Internal  
Revenue Service that the TIN provided by the shareholder is incorrect or that  
there has been underreporting of interest or dividends by the shareholder.  
Affected shareholders will receive statements at least annually specifying the 
amount of dividends withheld.  Shareholders exempt from backup 
withholding include:  corporations;  financial  institutions;  tax exempt 
organizations;  individual  retirement  plans;  the  U.S.,  a  state,  the 
District  of  Columbia,  a  U.S.  possession,  a  foreign  government,  an 
international  organization,  or  any  political  subdivision,  agency  or 
instrumentality of any of the foregoing;  U.S.  registered  commodities or 
securities dealers;  real estate investment trusts;  registered investment 
companies;  bank  common  trust  funds;  certain  charitable  trusts;  and 
foreign  central  banks of issue.  Non-resident  aliens also are generally 
not  subject  to  backup  withholding  but,  along  with  certain  foreign 
partnerships  and  foreign   corporations,   may  instead  be  subject  to 
withholding   under   section   1441  of  the   Internal   Revenue   Code. 
Shareholders  claiming  exemption from backup  withholding  should call or 
write the Fund for further information. 

========================================================================== 
                           VALUATION OF SHARES 
========================================================================== 

         The net asset  value per  share,  the price at which  shares  are 
continuously  issued and  redeemed,  is computed by dividing  the value of 
the Fund's  total  assets,  less its  liabilities,  by the total number of 
shares  outstanding.  The  Fund's  net  asset  value is  determined  every 
business  day at the  close of the New  York  Stock  Exchange  (generally, 
4:00 p.m.,  Eastern  time),  and at such other times as may be appropriate 
or  necessary.  The  Funds do not  determine  net asset  value on  certain 
national  holidays  or other days on which the New York Stock  Exchange is 
closed:  New Year's Day,  Presidents'  Day,  Good  Friday,  Memorial  Day, 
Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. 
         The Fund's assets,  including  commitments to purchase securities 
on a  when-issued  basis,  are valued at their  amortized  cost which does 
not take into account  unrealized  capital gains or losses.  This involves 
valuing  an  instrument  at its cost and  thereafter  assuming  a constant 
amortization  to maturity of any  discount or premium,  regardless  of the 
impact  of  fluctuating   interest  rates  on  the  market  value  of  the 
instrument.  While this method  provides  certainty in  valuation,  it may 
result in periods  during which value,  as determined  by amortized  cost, 
is higher or lower  than the price  that  would be  received  upon sale of 
the  instrument.  During periods of declining  interest  rates,  the daily 
yield on shares of a Fund may tend to be  higher  than a like  computation 
made  by  a  fund  with  identical   investments  utilizing  a  method  of 
valuation  based upon market  prices and  estimates  of market  prices for 
all of its  Fund  instruments.  Thus,  if the use of  amortized  cost by a 
Fund  resulted  in a lower  aggregate  Fund value on a  particular  day, a 
prospective  investor  in the  Fund  would be able to  obtain  a  somewhat 
higher  yield  than  would  result  from  investment  in a fund  utilizing 
solely  market  values,  and existing  investors in the Fund would receive 
less  investment  income.  The converse  would apply in a period of rising 
interest rates. 
         Rule 2a-7 under the  Investment  Company Act of 1940  permits the 
Fund to  value  its  assets  at  amortized  cost if the Fund  maintains  a 
dollar-weighted  average  maturity  of 90 days or less and only  purchases 
obligations  having  remaining  maturities of 13 months or less. Rule 2a-7 
requires,  as a  condition  of its  use,  that  the  Fund  invest  only in 
obligations  determined  by  the  Trustees  to be  of  high  quality  with 
minimal  credit  risks and further  requires  the  Trustees  to  establish 
procedures designed to stabilize,  to the extent reasonably possible,  the 
Fund's  price  per  share  as  computed  for  the  purpose  of  sales  and 
redemptions  at  $1.00.  Such  procedures  include  review  of the  Fund's 
investment  holdings by the Trustees,  at such  intervals as they may deem 
appropriate,  to determine  whether the Fund's net asset value  calculated 
by using available  market  quotations or equivalents  deviates from $1.00 
per  share.  If  such  deviation  exceeds  1/2 of 1%,  the  Trustees  will 
promptly  consider what action,  if any,  will be initiated.  In the event 
the  Trustees  determine  that a  deviation  exists  which  may  result in 
material  dilution  or other  unfair  results  to  investors  or  existing 
shareholders,  the  Trustees  will  take  such  corrective  action as they 
regard  as  necessary  and  appropriate,   including:  the  sale  of  Fund 
instruments  prior to  maturity to realize  capital  gains or losses or to 
shorten  average Fund  maturity;  the  withholding of dividends or payment 
of distributions  from capital or capital gains;  redemptions of shares in 
kind;  or the  establishment  of a net asset  value per share  based  upon 
available market quotations. 

========================================================================== 
                           CALCULATION OF YIELD 
========================================================================== 

         From time to time,  the Fund  advertises  "yield" and  "effective 
yield." Both yield  figures are based on  historical  earnings and are not 
intended  to  indicate  future  performance.  The  "yield"  refers  to the 
actual  income  generated by an  investment  in the Fund over a particular 
base  period of time.  The length  and  closing  date of the base  periods 
will be stated in the  advertisement.  If the base period is less than one 
year, the yield is then "annualized."  That is, the net change,  exclusive 
of capital  changes,  in the value of a share  during  the base  period is 
divided by the net asset value per share at the  beginning  of the period, 
and the result is  multiplied  by 365 and divided by the number of days in 
the base period.  Capital  changes  excluded from the calculation of yield 
are: (1) realized  gains and losses from the sale of  securities,  and (2) 
unrealized  appreciation and depreciation.  A Fund's "effective yield" for 
a seven-day period is its annualized  compounded  average yield during the 
period, calculated according to the following formula: 

          Effective yield = [(base period return) + 1]365/7 - 1 

         From  time to time,  the Fund may  provide,  for a given  period, 
quotations of dividend yield to  shareholders  or  prospective  investors. 
For  the  seven-day  period  ended  September  30,  1995,  the  yield  and 
effective yield were:
3.78% and 3.85%, respectively. 
                                                             
========================================================================== 
                               ADVERTISING 
========================================================================== 

         The Fund or its affiliates may provide  information  such as, but 
not limited to, the economy,  investment climate,  investment  principles, 
sociological  conditions  and political  ambiance.  Discussion may include 
hypothetical  scenarios or lists of relevant  factors  designed to aid the 
investor  in  determining   whether  the  Fund  is  compatible   with  the 
investor's  goals.  The Fund may list Fund  holdings  or give  examples or 
securities  that may have  been  considered  for  inclusion  in the  Fund, 
whether held or not. 
         The Fund or its  affiliates  may supply  comparative  performance 
data and rankings from  independent  sources such as Donoghue's Money Fund 
Report,  Bank Rate Monitor,  Money,  Forbes,  Lipper Analytical  Services, 
Inc.,  CDA  Investment   Technologies,   Inc.,   Wiesenberger   Investment 
Companies  Service,  Mutual Fund Values Morningstar  Ratings,  Mutual Fund 
Forecaster,  Barron's,  and The  Wall  Street  Journal.  The Fund may also 
cite to any source,  whether in print or on-line,  such as  Bloomberg,  in 
order to acknowledge  origin of  information.  The Fund may compare itself 
or its Fund  holdings  to other  investments,  whether  or not  issued  or 
regulated  by the  securities  industry,  including,  but not  limited to, 
certificates  of deposit and Treasury  notes.  The Fund, its Advisor,  and 
its  affiliates  reserve the right to update  performance  rankings as new 
rankings become available. 

========================================================================== 
                          TRUSTEES AND OFFICERS 
========================================================================== 

         RICHARD  L.  BAIRD,  JR.,  Trustee.  Mr.  Baird  is  Director  of 
Finance for the Family Health Council,  Inc. in Pittsburgh,  Pennsylvania, 
a  non-profit   corporation  which  provides  family  planning   services, 
nutrition,  maternal/child  health  care,  and  various  health  screening 
services.  Mr.  Baird  is a  trustee/director  of each  of the  investment 
companies  in the  Calvert  Group of  Funds,  except  for  Acacia  Capital 
Corporation,  Calvert  New  World  Fund and  Calvert  World  Values  Fund. 
Address: 211 Overlook Drive, Pittsburgh, Pennsylvania 15216. 
         FRANK H. BLATZ,  JR.,  Esq.,  Trustee.  Mr. Blatz is a partner in 
the law firm of Abrams,  Blatz,  Gran,  Hendricks & Reina,  P.A.  Address: 
900 Oak Tree Road, South Plainfield, New Jersey 07080. 
         FREDERICK T. BORTS,  M.D.,  Trustee.  Dr. Borts is a  radiologist 
with Kaiser  Permanente.  Prior to that, he was a radiologist at Bethlehem 
Medical Imaging in Allentown,  Pennsylvania.  Address:  2040 Nuuanu Avenue 
#1805, Honolulu, Hawaii, 96817. 
         <F1> CHARLES E. DIEHL,  Trustee.  Mr.  Diehl is Vice  President  and 
Treasurer  Emeritus of the George Washington  University,  and has retired 
from University Support Services,  Inc. of Herndon,  Virginia.  He is also 
a Director of Acacia Mutual Life Insurance  Company.  Address:  1658 Quail 
Hollow Court, McLean, Virginia 22101. 
         DOUGLAS E. FELDMAN,  M.D.,  Trustee.  Dr. Feldman  practices head 
and neck  reconstructive  surgery in the  Washington,  D.C.,  metropolitan 
area. Address: 7536 Pepperell Drive, Bethesda, Maryland 20817. 
         PETER W.  GAVIAN,  CFA,  Trustee.  Mr.  Gavian is a principal  of 
Gavian De Vaux  Associates,  an  investment  banking firm. He was formerly 
President of Corporate Finance of Washington,  Inc. Address:  1953 Gallows 
Road, Suite 130, Vienna, Virginia 22201. 
         JOHN G.  GUFFEY,  JR.,  Trustee.  Mr.  Guffey is  chairman of the 
Calvert  Social  Investment   Foundation,   organizing   director  of  the 
Community Capital Bank in Brooklyn,  New York, and a financial  consultant 
to various  organizations.  In addition, he is a Director of the Community 
Bankers  Mutual Fund of Denver,  Colorado,  and the Treasurer and Director 
of Silby,  Guffey,  and Co., Inc., a venture capital firm. Mr. Guffey is a 
trustee/director  of  each  of  the  other  investment  companies  in  the 
Calvert  Group  of  Funds,  except  for  Acacia  Capital  Corporation  and 
Calvert  New  World  Fund.  Address:  7205  Pomander  Lane,  Chevy  Chase, 
Maryland 20815.  
         ARTHUR  J.  PUGH,  Trustee.  Mr.  Pugh  serves as a  Director  of 
Acacia  Federal  Savings Bank.  Address:  4823 Prestwick  Drive,  Fairfax, 
Virginia 22030. 
         <F1> DAVID  R.  ROCHAT,  Senior  Vice  President  and  Trustee.  Mr. 
Rochat is Executive  Vice President of Calvert Asset  Management  Company, 
Inc.,  Director  and  Secretary  of  Grady,  Berwald  and Co.,  Inc.,  and 
Director  and  President  of Chelsea  Securities,  Inc.  Address:  Box 93, 
Chelsea, Vermont 05038. 
         <F1>   D.   WAYNE   SILBY,   Esq.,   Trustee.   Mr.   Silby   is   a 
trustee/director  of  each  of the  investment  companies  in the  Calvert 
Group of Funds,  except for Acacia  Capital  Corporation  and  Calvert New 
World Fund.  Mr. Silby is an officer,  director and  shareholder of Silby, 
Guffey &  Company,  Inc.,  which  serves as  general  partner  of  Calvert 
Social  Venture  Partners  ("CSVP").   CSVP  is  a  venture  capital  firm 
investing in socially  responsible small companies.  He is also a Director 
of Acacia  Mutual  Life  Insurance  Company.  Address:  1715 18th  Street, 
N.W., Washington, D.C. 20009. 
         <F1> CLIFTON S. SORRELL,  JR.,  President and Trustee.  Mr.  Sorrell 
serves  as  President,  Chief  Executive  Officer  and  Vice  Chairman  of 
Calvert  Group,  Ltd.  and as an  officer  and  director  of  each  of its 
affiliated  companies.   He  is  a  director  of  Calvert-Sloan  Advisers, 
L.L.C.,  and a  trustee/director  of each of the  investment  companies in 
the Calvert Group of Funds. 
         <F1> RENO J. MARTINI,  Senior Vice President.  Mr. Martini is Senior 
Vice  President of Calvert  Group,  Ltd.,  and Senior Vice  President  and 
Chief  Investment  Officer of Calvert Asset Management  Company,  Inc. Mr. 
Martini  is also a  director  and  President  of  Calvert-Sloan  Advisers, 
L.L.C., and a director and officer of Calvert New World Fund.  
         <F1> RONALD M.  WOLFSHEIMER,  CPA,  Treasurer.  Mr.  Wolfsheimer  is 
Senior Vice  President  and  Controller  of Calvert  Group,  Ltd.  and its 
subsidiaries and an officer of each of the other  investment  companies in 
the  Calvert  Group  of  Funds.  Mr.  Wolfsheimer  is Vice  President  and 
Treasurer of  Calvert-Sloan  Advisers,  L.L.C.,  and a director of Calvert 
Distributors, Inc. 
         <F1> WILLIAM M. TARTIKOFF,  Esq., Vice President and Secretary.  Mr. 
Tartikoff  is an  officer  of  each  of the  investment  companies  in the 
Calvert  Group of Funds,  and is Senior  Vice  President,  Secretary,  and 
General  Counsel of Calvert  Group,  Ltd.,  and each of its  subsidiaries. 
Mr. Tartikoff is Vice President and Secretary of  Calvert-Sloan  Advisers, 
L.L.C., and is an officer of Acacia National Life Insurance Company. 
         <F1>EVELYNE  S.  STEWARD,  Vice  President.  Ms.  Steward is Senior 
Vice  President of Calvert Group,  Ltd.,  and a director of  Calvert-Sloan 
Advisers, L.L.C. 
         <F1> DANIEL K. HAYES,  Vice  President.  Mr. Hayes is Vice President 
of Calvert Asset  Management  Company,  Inc., and is an officer of each of 
the other investment  companies in the Calvert Group of Funds,  except for 
Calvert New World Fund. 
         <F1> SUSAN WALKER BENDER, Esq.,  Assistant Secretary.  Ms. Bender is 
Associate  General  Counsel of Calvert Group,  Ltd. and an officer of each 
of its  subsidiaries  and  Calvert-Sloan  Advisers,  L.L.C. She is also an 
officer of each of the other  investment  companies  in the Calvert  Group 
of Funds.    
        <F1>Officers and trustees deemed to be "interested persons" of the Fund
under the Investment Company Act of 1940, by virtue of of their  
affiliation with the Fund's Advisor.  

         Each  of  the  above   directors/trustees   and   officers  is  a 
director/trustee  or officer of each of the  investment  companies  in the 
Calvert  Group of Funds with the  exception of Calvert  Social  Investment 
Fund,  of which only Messrs.  Baird,  Guffey,  Silby and Sorrell are among 
the trustees,  Acacia Capital  Corporation,  of which only Messrs.  Blatz, 
Diehl,  Pugh and Sorrell are among the  directors,  Calvert  World  Values 
Fund,  Inc.,  of which only  Messrs.  Guffey,  Silby and Sorrell are among 
the  directors,  and Calvert New World Fund,  Inc.,  of which only Messrs. 
Sorrell  and  Martini are among the  directors.  The address of  directors 
and officers,  unless  otherwise noted, is 4550 Montgomery  Avenue,  Suite 
1000N,  Bethesda,  Maryland 20814.  Trustees and officers of the Fund as a 
group own less than 1% of the Fund's outstanding shares. 
         The Audit  Committee  of the Board is composed of Messrs.  Baird, 
Blatz,  Feldman,  Guffey and Pugh. The Board's Investment Policy Committee 
is composed of Messrs. Borts, Diehl, Gavian, Rochat, Silby and Sorrell. 
         During  fiscal  1995,  trustees of the Fund not  affiliated  with 
the Fund's  Advisor were paid $8,619.  Trustees of the Fund not affiliated 
with the  Advisor  presently  receive an annual fee of $20,250 for service 
as a member of the Board of Trustees of the  Calvert  Group of Funds,  and 
a fee of $750 to  $1200  for  each  regular  Board  or  Committee  meeting 
attended;  such  fees are  allocated  among  the  respective  Funds on the 
basis of net assets. 
         Trustees of the Fund not  affiliated  with the Fund's Advisor may 
elect to defer  receipt  of all or a  percentage  of their fees and invest 
them in any fund in the  Calvert  Family  of Funds  through  the  Trustees 
Deferred  Compensation  Plan  (shown as "Pension  or  Retirement  Benefits 
Accrued  as  part of  Fund  Expenses,"  below).  Deferral  of the  fees is 
designed  to  maintain  the  parties in the same  position  as if the fees 
were  paid on a  current  basis.  Management  believes  this  will  have a 
negligible effect on the Fund's assets,  liabilities,  net assets, and net 
income  per  share,  and  will  ensure  that  there is no  duplication  of 
advisory fees. 

                        Trustee Compensation Table 

Fiscal Year 1995       Aggregate         Pension or        Total Compensation   
(unaudited             Compensation      Retirement        from Registrant and 
numbers)               from Registrant   Benefits Accrued  Fund Complex paid to
                       for service as    as part of        Trustees<F3>
                       Trustee           Registrant
Name of Trustee                          Expenses<F2>
 .......................................................................... 
Richard L. Baird, Jr.  $885              $0                 $33,450 
Frank H. Blatz, Jr.    $913              $913               $36,801 
Frederick T. Borts     $671              $0                 $25,050 
Charles E. Diehl       $903              $903               $35,101 
Douglas E. Feldman     $855              $0                 $30,600 
Peter W. Gavian        $601              $258               $31,051 
John G. Guffey, Jr.    $859              $0                 $40,450 
Arthur J. Pugh         $912              $0                 $36,801 
D. Wayne Silby         $849              $0                 $47,965 

<F2> Messrs. Blatz, Diehl, Gavian, and Pugh have chosen to defer a portion  
of their compensation. As of September 30, 1995, total deferred  
compensation, including dividends and capital appreciation, was  
$389,972, $320,855, $85,937, and $145,282, for each trustee,  
respectively. 
<F3> As of December 31, 1995. The Fund Complex consists of eight (8)  
 registered investment companies.

========================================================================== 
                            INVESTMENT ADVISOR 
========================================================================== 

         The  Fund's  Investment   Advisor  is  Calvert  Asset  Management 
Company,  Inc., 4550 Montgomery Avenue,  Suite 1000N,  Bethesda,  Maryland 
20814,  a subsidiary  of Calvert  Group,  Ltd.,  which is a subsidiary  of 
Acacia  Mutual  Life  Insurance  Company  of  Washington,   D.C.  ("Acacia 
Mutual"). 
         The  Advisory  Contract  between  the Fund and the  Advisor  will 
remain  in  effect  until   January  3,  1997,   and  from  year  to  year 
thereafter,  provided  continuance  is approved  at least  annually by the 
vote of the holders of a majority of the  outstanding  shares of the Fund, 
or  by  the  Trustees  of  the  Fund;  and  further   provided  that  such 
continuance  is also  approved  annually  by the vote of a majority of the 
Trustees  of the Fund who are not parties to the  Contract  or  interested 
persons  of such  parties,  cast in  person at a  meeting  called  for the 
purpose  of  voting  on such  approval.  The  Contract  may be  terminated 
without  penalty by either  party on 60 days'  prior  written  notice;  it 
automatically terminates in the event of its assignment. 
         Under the  Contract,  the  Advisor  manages  the  investment  and 
reinvestment  of the Fund's  assets,  subject to the direction and control 
of the Fund's Board of Trustees.  For its services,  the Advisor  receives 
an annual  fee,  payable  monthly,  of 0.50% of the first $500  million of 
the Fund's  average  daily net assets,  0.475% of the next $500 million of 
such  assets,  0.45% of the next $500  million of such  assets,  0.425% of 
the next $500  million of such  assets,  and 0.40% of all such assets over 
$2 billion.  Until  September  30, 1993,  the Advisor  voluntarily  waived 
half of its  advisory  fee for the Fund,  and  charged  only  0.25% of the 
Fund's average daily net assets. 
         The Advisor  provides the Fund with  investment  supervision  and 
management,  administrative  services,  office space,  furnishes executive 
and other  personnel  to the Fund,  and pays the  salaries and fees of all 
Trustees  who are  affiliated  persons of the  Advisor.  The  Advisor  may 
assume and pay certain  Fund  advertising  and  promotional  expenses  and 
reserves  the  right to  compensate  broker-dealers  in  consideration  of 
their promotional or administrative services. 
         The Fund  pays all  other  expenses  including:  custodial  fees; 
shareholder  servicing,  dividend  disbursing  and  transfer  agency fees; 
federal  and  state  securities   registration  fees;   Distribution  Plan 
expenses;  insurance  premiums;  trade association dues;  interest,  taxes 
and other business fees;  legal and audit fees; and brokerage  commissions 
and other costs associated with the purchase and sale of Fund securities. 
         The  Advisor  has  agreed to  reimburse  the Fund for the  Fund's 
operating expenses (excluding  brokerage,  taxes,  interest,  Distribution 
Plan expenses and  extraordinary  items)  exceeding,  on a pro rata basis, 
the most  restrictive  state expense  limitation in those states where the 
Funds' shares are registered. 
         The advisory  fees paid for the 1993,  1994,and 1995 fiscal years 
were $296,175, $516,334, and $378,388,  respectively.  The advisor did not 
reimburse  the Fund during the 1993 or 1994  fiscal  years.  During  1995, 
the Advisor  voluntarily  waived fees or assumed expenses of $71,798 which 
were not charged to the Fund. 

========================================================================== 
                 TRANSFER AND SHAREHOLDER SERVICING AGENT 
========================================================================== 

         Calvert  Shareholder  Services,  Inc., a wholly owned  subsidiary 
of Calvert  Group,  Ltd., and Acacia Mutual Life  Insurance  Company,  has 
been retained by the Fund to act as transfer  agent,  dividend  disbursing 
agent and shareholder  servicing agent.  These  responsibilities  include: 
responding to  shareholder  inquiries and  instructions  concerning  their 
accounts;  crediting and debiting  shareholder  accounts for purchases and 
redemptions  of  Fund  shares  and  confirming  such  transactions;  daily 
updating of  shareholder  accounts to reflect  declaration  and payment of 
dividends;   and  preparing  and  distributing   quarterly  statements  to 
shareholders  regarding  their  accounts.   For  such  services,   Calvert 
Shareholder  Services,  Inc. receives  compensation based on the number of 
shareholder  accounts  and the number of  transactions.  The service  fees 
paid to Calvert Shareholder  Services,  Inc., for the 1993, 1994, and 1995 
fiscal years were $177,074, $140,423, and $144,412, respectively. 

========================================================================== 
                  INDEPENDENT ACCOUNTANTS AND CUSTODIANS 
========================================================================== 

         Coopers  &  Lybrand,  L.L.P.  has been  selected  by the Board of 
Trustees to serve as  independent  auditors  for fiscal  year 1996.  State 
Street  Bank & Trust  Company,  N.A.,  225  Franklin  Street,  Boston,  MA 
02110,  serves as  custodian  of the Fund's  investments.  First  National 
Bank of Maryland,  25 South  Charles  Street,  Baltimore,  Maryland  21203 
also  serves as  custodian  of  certain  of the Fund's  cash  assets.  The 
custodian  has no part in deciding the Fund's  investment  policies or the 
choice  of  securities  that are to be  purchased  or sold for the  Fund's 
Funds. 

========================================================================== 
                          METHOD OF DISTRIBUTION 
========================================================================== 

         The  Fund   has   entered   into  an   agreement   with   Calvert 
Distributors,  Inc.  ("CDI") whereby CDI, acting as principal  underwriter 
for the Fund,  makes a continuous  offering of the Fund's  securities on a 
"best efforts" basis.  Under the terms of the agreements,  CDI is entitled 
to  receive,  pursuant to the Fund's  Distribution  Plan,  a  distribution 
service  fee  from the Fund of 0.35%  of its  average  daily  net  assets. 
This Distribution Plan will be terminated, effective June 30, 1996. 
 Through June 30, 1996: Pursuant  to Rule  12b-1  under  the  Investment  
Company  Act of 1940,  the Fund  has  adopted  a  Distribution  Plan  
(the "Plan") which permits it to pay certain expenses associated with the  
distribution of shares. Such expenses may not exceed, on an annual basis, 0.35%
of the Fund's average daily net assets.  The Distribution Plan was approved by 
shareholders  of the Fund  and by the  Board of  Trustees,  including  the 
Trustees  who are not  "interested  persons"  of the Fund (as that term is 
defined in the  Investment  Company Act of 1940) and who have no direct or 
indirect  financial  interest  in  the  operation  of the  Plan  or in any 
agreements  related  to the Plan.  The  selection  and  nomination  of the 
Trustees  who are not  interested  persons of the Fund is committed to the 
discretion of such disinterested  Trustees.  In establishing the Plan, the 
Trustees   considered   various  factors   including  the  amount  of  the 
distribution  fee (a maximum of 0.35%  annually of the Fund's  average net 
assets).  The Trustees  determined  that there is a reasonable  likelihood 
that the Plan will benefit the Fund and its shareholders. 
         The  Plan  may  be  terminated  by  vote  of a  majority  of  the 
non-interested  Trustees who have no direct or indirect financial interest 
in the Plan,  or by vote of a majority  of the  outstanding  shares of the 
Fund.  Any  change  in  the  Plan  that  would  materially   increase  the 
distribution cost to the Fund requires  shareholder  approval;  otherwise, 
the Plan may be  amended by the  Trustees,  including  a  majority  of the 
non-interested Trustees as described above. 
         The Plan has been terminated effective June 30, 1996, in accordance 
with its terms.
         For the  1993,  1994,  and  1995  fiscal  years,  the  Fund  paid 
Distribution   Plan   expenses  of  $236,748,   $351,119,   and  $315,130, 
respectively.  Fiscal  year  1995  Distribution  Plan  expenses  were used 
entirely to compensate dealers  distributing  shares. Apart from the Plan, 
the Advisor  and the  principal  underwriter,  at their own  expense,  may 
incur costs and pay expenses  associated  with the  distribution of shares 
of the Fund. 

========================================================================== 
                          PORTFOLIO TRANSACTIONS 
========================================================================== 

         Transactions   are   allocated   to  various   underwriters   and 
broker-dealers  by  the  Fund's  Advisor.   Newly  issued  securities  are 
purchased from  underwriters  acting as principals at prices which include 
underwriting  fees.  Purchases of securities  in the secondary  market and 
all sales are placed  with  broker-dealers  who may be acting as agents or 
principals.  Broker-dealers  who execute  Fund  transactions  on behalf of 
the  Fund  are  selected   primarily  on  the  basis  of  their  execution 
capability  and  secondarily  on the value and quality of their  services. 
The Advisor may place orders for the  purchase or sale of Fund  securities 
with qualified  broker-dealers who provide it with statistical,  research, 
or  other  information  and  services.  Such  broker-dealers  may  receive 
compensation  for  executing  Fund  transactions  that is in excess of the 
compensation  another  broker-dealer  would have  received  for  executing 
such  transactions  if the  Advisor  determines  in good  faith  that such 
compensation  is  reasonable  in relation to the value of the  information 
or services that have been provided.  No brokerage  commissions  were paid 
by the Fund in the past three fiscal years. 
         The Advisor may also  execute Fund  transactions  with or through 
broker-dealers  who have  sold  shares of the Fund.  However,  such  sales 
will not be a  qualifying  or  disqualifying  factor in a  broker-dealer's 
selection  nor will the  selection  of any  broker-dealer  be based on the 
volume of Fund shares sold. 

========================================================================== 
                           GENERAL INFORMATION 
========================================================================== 

         The Fund is the only  series of a  Massachusetts  business  trust 
organized on March 16, 1982,  under the name  Calvert Cash  Reserves,   
doing business as Money Management  Plus. The Fund is no longer doing business
as Money Management Plus, effective June 30, 1996. The Fund's Declaration of 
Trust contains an express disclaimer of shareholder liability for acts or 
obligations  of the Fund. The  shareholders  of a  Massachusetts  business 
trust might,  however,  under certain  circumstances,  be held  personally 
liable  as  partners  for  its  obligations.   The  Declaration  of  Trust 
provides for  indemnification  and  reimbursement  of expenses out of Fund 
assets for any shareholder  held personally  liable for obligations of the 
Fund.  The  Declaration  of  Trust  provides  that the  Fund  shall,  upon 
request,  assume the  defense of any claim made  against  any  shareholder 
for any act or  obligation  of the Fund and satisfy any judgment  thereon. 
The  Declaration  of Trust  further  provides  that the Fund may  maintain 
appropriate  insurance  (for  example,  fidelity  bonding  and  errors and 
omissions  insurance) for the  protection of the Fund,  its  shareholders, 
Trustees,  officers,  employees,  and  agents to cover  possible  tort and 
other  liabilities.  Thus, the risk of a shareholder  incurring  financial 
loss on account of shareholder  liability is limited to  circumstances  in 
which both  inadequate  insurance  exists and the Fund itself is unable to 
meet its obligations. 
         The Fund will send its  shareholders  unaudited  semi-annual  and 
audited  annual  reports  that will include the Fund's net asset value per 
share,  Fund  securities,   income  and  expenses,   and  other  financial 
information. 
         This  Statement of  Additional  Information  does not contain all 
the information in the Fund's  registration  statement.  The  registration 
statement is on file with the  Securities  and Exchange  Commission and is 
available to the public. 

========================================================================== 
                           FINANCIAL STATEMENTS 
========================================================================== 

         The audited  financial  statements  included in the Annual Report 
to Shareholders  dated  September 30, 1995, are expressly  incorporated by 
reference  and made a part of this  Statement of  Additional  Information. 
Copies  of this  Report  may be  obtained  free of charge  by  writing  or 
calling the Fund. 

========================================================================== 
                                 APPENDIX 
========================================================================== 

Commercial Paper Ratings 
         Commercial  paper rated A-1 by Standard & Poor's  Corporation has 
the  following  characteristics:  liquidity  ratios are  adequate  to meet 
cash  requirements;  long-term  senior  debt is rated "A" or  better;  the 
issuer  has  access  to at least two  additional  channels  of  borrowing; 
basic  earnings  and cash flow have an upward  trend with  allowance  made 
for  unusual  circumstances;  typically,  the  issuer's  industry  is well 
established  and the issuer  has a strong  position  within the  industry; 
and the  reliability  and  quality of  management  are  unquestioned.  The 
relative strength or weakness of the above factors  determines  whether an 
issuer's commercial paper is rated Al, A2, or A3. 
         The  rating  Prime-1  is  the  highest  commercial  paper  rating 
assigned by Moody's Investors  Service,  Inc. Among the factors considered 
by  Moody's  in  assigning  rating are the  following:  evaluation  of the 
management of the issuer;  economic  evaluation  of the issuer's  industry 
or  industries  and an  appraisal of  speculative-type  risks which may be 
inherent  in  certain  areas;  evaluation  of  the  issuer's  products  in 
relation to competition  and customer  acceptance;  liquidity;  amount and 
quality of long-term  debt;  trend of earnings over a period of ten years; 
financial  strength of a parent company and the relationships  which exist 
with the issuer;  and  recognition by the management of obligations  which 
may be present or may arise as a result of public  interest  question  and 
preparations to meet such obligations. 





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