U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 24F-2
Annual Notice of Securities Sold
Pursuant to Rule 24f-2
1. Name and address of issuer:
Calvert Cash Reserves
4550 Montgomery Ave., Ste. 1000N
Bethesda, MD 20814
2. Name of each series or class of funds for
which this notice is filed:
Institutional Prime Fund
3. Investment Company Act File Number:
811-3418
Securities Act File Number:
2-76527
4(a). Last day of fiscal year for which this
notice is filed:
September 30, 1999
4(b). Check box if this notice is being filed late
(i.e., more
than 90 days after the end of the issuer's
fiscal year).
[ ]
Note: if the Form is being filed more than 90
days after the end of the issuer's fiscal
year, interest must be paid on the
registration fee due.
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4(c). Check box if this is the last time the issuer will
be filing this Form.
[]
5. Calculation of registration fee:
(i). Aggregate sale price of secur-
ities sold during the fiscal year
pursuant to section 24(f):
$6,210,134,817.00
(ii). Aggregate price of securities
redeemed or repurchased
during the fiscal year:
$6,052,001,761.00
(iii). Aggregate price of securities
redeemed or repurchased during any prior fiscal
year ending no earlier than October 11, 1995 that
were not previously used to reduce registration
fees payable to the Commission: $0
(iv). Total available redemption credits
[add Items 5(ii) and 5(iii)]:
-$6,052,001,761.00
(v). Net sales -- if Item 5(i) is
greater than Item 5(iv)
[subtract Item 5(iv) from Item 5(i)]:
$158,133,056.00
(vi). Redemption credits available for
use in future years if Item 5(i) is
less than Item 5(iv) [subtract Item
5(iv) from Item 5(i)]:
$0
(vii). Multiplier for determining registration
fee (See Instruction C.8):
x .000264
(viii). Registration fee due [multiply Item
5(v) by Item 5(vii)] (enter "0" if
no fee is due): = $41,747.13
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6. Prepaid Shares
If the response to item 5(i) was determined by
deducting an amount of securities that were registered
under the Securities Act of 1933 pursuant to rule 24e-2
as in effect before [effective date of rescission of
rule 243-2], then report the amount of securities
(number of shares or other units) deducted here:
_______. If there is a number of shares or other units
that were registered pursuant to rule 24e-2 remaining
unsold at the end of the fiscal year for which this form
is filed that are available for use by the issuer in
future fiscal years, then state that number
here:________.
7. Interest due - if this Form is being filed more
than 90 days after the end of the issuer's fiscal year
+$
8. Total of the amount of the registration fee due
plus any interest due [line 5(viii) plus line 7]:
=$
9. Date of registration fee and any interest payment was
sent to the Commission's lockbox depository: N/A
Method of Delivery:
[ X ] Wire Transfer
[ ] Mail or other means
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SIGNATURES
This report has been signed below by the following person
on behalf of the issuer and in the capacity and on
the date indicated.
By (signature and Title)* William M. Tartikoff
/s/ William M. Tartikoff
General Counsel
Date: December 21, 1999
*Please print the name and title of the signing
officer below the signature.
