CASH TRUST SERIES INC
485APOS, 1998-07-28
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                                                      1933 Act File No. 33-29838
                                                      1940 Act File No. 811-5843

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933           ___X__
                                                                     -

    Pre-Effective Amendment No.        .....................

    Post-Effective Amendment No. __17__.....................      ___X__

                                                                 and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940   ___X__

    Amendment No.  ___15___.................................      ___X__

                             CASH TRUST SERIES, INC.

               (Exact Name of Registrant as Specified in Charter)

                            Federated Investors Funds
                              5800 Corporate Drive
                       Pittsburgh, Pennsylvania 15237-7000
                    (Address of Principal Executive Offices)

                                 (412) 288-1900
                         (Registrant's Telephone Number)

                           John W. McGonigle, Esquire,
                           Federated Investors Tower,
                       Pittsburgh, Pennsylvania 15222-3779
                     (Name and Address of Agent for Service)

It is proposed that this filing will become effective:

    immediately upon filing pursuant to paragraph (b).
    on _________________ pursuant to paragraph (b).
    60 days after filing pursuant to paragraph (a)(i).
 X  on September 30, 1998 pursuant to paragraph (a)(i).
    75 days after filing pursuant to paragraph (a)(ii).
    on _________________ pursuant to paragraph (a)(ii) of Rule 485.

If appropriate, check the following box:

    This post-effective amendment designates a new effective date for a
previously filed post-effective amendment.

                                                               Copies to:

Matthew G. Maloney, Esquire
Dickstein Shapiro Morin & Oshinsky, LLP
2101 L Street, N.W.
Washington, D.C. 20037


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                              CROSS-REFERENCE SHEET

      This Amendment to the Registration Statement of CASH TRUST SERIES, INC.,
which is comprised of four portfolios: (1) Government Cash Series; (2) Municipal
Cash Series: (3) Prime Cash Series; and (4) Treasury Cash Series, relates only
to Municipal Cash Series, and Prime Cash Series, and is comprised of the
following:

PART A.    INFORMATION REQUIRED IN A PROSPECTUS.

                                          Prospectus Heading
                                          (Rule 404(c) Cross Reference)

Item 1.     Cover Page....................(1-4) Cover Page.

Item 2.     Synopsis                      (1-4) Summary of Fund Expenses.
Item 3.     Condensed Financial
            Information...................(1-4) Performance Information; (1-4) 
                                          Financial Highlights.

Item 4.     General Description of
            Registrant....................(1-4) General Information; (1-4) 
                                          Investment Information; (1-4) 
                                          Investment Objective; (1-4)
                                          Investment Policies; (1-4) Investment 
                                          Limitations; (2) Municipal Securities;
                                          (2,3) Investment  Risks.

Item 5.     Management of the Fund........(1-4) Fund Information; (1-4) 
                                          Management of the Fund; (1-4) 
                                          Distribution of Shares; (1-4)
                                          Administration of the Fund.

Item 6.     Capital Stock and Other
            Securities....................(1-4) Account and Share Information;
                                          (1-4) Dividends; (1-4) Capital Gains; 
                                          (1-4) Confirmations and
                                          Account Statements; (1-4) Accounts 
                                          with Low Balances; (1-4) Voting 
                                          Rights; (1-4) Tax Information;
                                          (1-4) Federal Income Tax; (1-4) State 
                                          and Local Taxes.

Item 7.     Purchase of Securities Being
            Offered.......................(1-4) Net Asset Value; (1-4) How to 
                                          Purchase Shares; (1-4) Purchasing 
                                          Shares Through a Financial
                                          Institution; (1-4) Purchasing Shares 
                                          by Wire; (1-4) Purchasing Shares by 
                                          Check; (1-4) Special
                                          Purchase Features.

Item                                      8. Redemption or Repurchase......(1-4)
                                          How to Redeem Shares; (1-4) Redeeming
                                          Shares Through a Financial
                                          Institution; (1-4) Redeeming Shares by
                                          Telephone; (1-4) Redeeming Shares by
                                          Mail; (1-4) Special Redemption
                                          Features.

Item 9.     Pending Legal Proceedings     None.


<PAGE>


PART B.    INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION:

Item 10.    Cover Page....................(1-4) Cover Page.

Item 11.    Table of Contents             (1-4) Table of Contents.

Item 12.    General Information and
            History                       (1-4) About Federated Investors.

Item 13.    Investment Objectives and
            Policies......................(1-4) Investment Policies; (1-4) 
                                          Investment Limitations.

Item 14.    Management of the Fund........(1-4) Cash Trust Series, Inc. 
                                          Management.

Item 15.    Control Persons and Principal
            Holders of Securities         Not Applicable.

Item 16.    Investment Advisory and Other
            Services......................(1-4) Investment Advisory Services; 
                                          (1-4) Other Services.

Item 17.    Brokerage Allocation.         (1-4) Brokerage Transactions.

Item 18.    Capital Stock and Other
            Securities                    Not Applicable.

Item 19.    Purchase, Redemption and
            Pricing of Securities
            Being Offered.................(1-4) Determining Net Asset Value; 
                                          (1-4) Redemption in Kind.

Item 20.    Tax Status                    (1-4) The Fund's Tax Status.

Item 21.    Underwriters..................(1-4) Distribution Plan and
                                          Shareholder Services.

Item 22.    Calculation of Performance
            Data                          (1-4) Performance Information.

Item 23.    Financial Statements..........Incorporated  by reference  to the 
                                          Annual  Reports to  Shareholders  of
                                          the Funds dated May 31, 1998
                                          (File Nos. 33-29838 and 811-5843).


Municipal Cash Series

(A Portfolio of Cash Trust Series, Inc.)



Prospectus





The shares of Municipal Cash Series (the "Fund") offered by this prospectus
represent interests in a portfolio of Cash Trust Series, Inc. (the "Company"),
an open-end management investment company (a mutual fund). The Fund invests in
short-term municipal securities to achieve current income exempt from federal
regular income tax consistent with stability of principal.

The shares offered by this prospectus are not deposits or obligations of any
bank, are not endorsed or guaranteed by any bank and are not insured or
guaranteed by the U.S. government, the Federal Deposit Insurance Corporation,
the Federal Reserve Board, or any other government agency. Investment in these
shares involves investment risks, including possible loss of principal. The Fund
attempts to maintain a stable net asset value of $1.00 per share; there can be
no assurance that the Fund will be able to do so.

This prospectus contains the information you should read and know before you
invest in the Fund. Keep this prospectus for future reference.

   The Fund has also filed a Statement of Additional Information dated September
30, 1998, with the Securities and Exchange Commission ("SEC"). The information
contained in the Statement of Additional Information is incorporated by
reference into this prospectus. You may request a copy of the Statement of
Additional Information or a paper copy of this prospectus, if you have received
your prospectus electronically, free of charge by calling 1-800-341-7400. To
obtain other information, or make inquiries about the Fund, contact your
financial institution. The Statement of Additional Information, material
incorporated by reference into this document, and other information regarding
the Fund is maintained electronically with the SEC at Internet Web site
(http://www.sec.gov).    

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

   Prospectus dated September 30, 1998    



<PAGE>



                                                                   



<PAGE>







                                                                      



<PAGE>



                                                                         



<PAGE>



                                                                         

The Company was established as a Maryland corporation under Articles of
Incorporation dated February 1, 1993. The Articles of Incorporation permit the
Company to offer separate series of shares representing interests in separate
portfolios of securities. The Fund is designed for customers of financial
institutions such as banks, fiduciaries, custodians of public funds, investment
advisers, and broker/dealers as a convenient means of accumulating an interest
in a professionally managed portfolio investing in short-term municipal
securities. The Fund may not be a suitable investment for retirement plans
because it invests in municipal securities. A minimum initial investment of
$10,000 is required.

The Fund attempts to stabilize the value of a share at $1.00. Shares are
currently sold and redeemed at that price.


                                                                          

Investment Objective

The investment objective of the Fund is current income exempt from federal
regular income tax consistent with stability of principal. This investment
objective cannot be changed without shareholder approval. While there is no
assurance that the Fund will achieve its investment objective, it endeavors to
do so by complying with the diversification and other requirements of Rule 2a-7
under the Investment Company Act of 1940 which regulates money market mutual
funds and by following the investment policies described in this prospectus.

Investment Policies

The Fund pursues its investment objective by investing in a portfolio of
municipal securities maturing in 13 months or less. The average maturity of the
securities in the Fund's portfolio, computed on a dollar-weighted basis, will be
90 days or less. As a matter of investment policy, which cannot be changed
without shareholder approval, at least 80% of the Fund's annual interest income
will be exempt from federal regular income tax. (Federal regular income tax does
not include the federal individual alternative minimum tax or the federal
alternative minimum tax for corporations.) Unless indicated otherwise, the
investment policies may be changed by the Board of Directors (the "Directors")
without shareholder approval. Shareholders will be notified before any material
change in these policies becomes effective.

Acceptable Investments

The Fund invests primarily in debt obligations issued by or on behalf of states,
territories, and possessions of the United States, including the District of
Columbia, and any political subdivision or financing authority of any of these,
the income from which is, in the opinion of qualified legal counsel, exempt from
federal regular income tax ("Municipal Securities"). Examples of Municipal
Securities include, but are not limited to:

n tax and revenue anticipation notes issued to finance working capital needs in
anticipation of receiving taxes or other revenues;

n bond anticipation notes that are intended to be refinanced through a later
issuance of longer-term bonds;

n  municipal commercial paper and other short-term notes;

n  variable rate demand notes;

n municipal bonds (including bonds having serial maturities and pre-refunded
bonds) and leases; and

n participation, trust, and partnership interests in any of the foregoing
obligations.

   Variable Rate Demand Notes

   Variable rate demand notes are long-term debt instruments that have variable
   or floating interest rates and provide the Fund with the right to tender the
   security for repurchase at its stated principal amount plus accrued interest.
   Such securities typically bear interest at a rate that is intended to cause
   the securities to trade at par. The interest rate may float or be adjusted at
   regular intervals (ranging from daily to annually), and is normally based on
   a published interest rate or interest rate index. Most variable rate demand
   notes allow the Fund to demand the repurchase of the security on not more
   than seven days prior notice. Other notes only permit the Fund to tender the
   security at the time of each interest rate adjustment or at other fixed
   intervals. See "Demand Features." The Fund treats variable rate demand notes
   as maturing on the later of the date of the next interest rate adjustment or
   the date on which the Fund may next tender the security for repurchase.

   Participation Interests

   The Fund may purchase interests in Municipal Securities from financial
   institutions such as commercial and investment banks, savings associations,
   and insurance companies. These interests may take the form of participations,
   beneficial interests in a trust, partnership interests or any other form of
   indirect ownership that allows the Fund to treat the income from the
   investment as exempt from federal income tax. The Fund invests in these
   participation interests in order to obtain credit enhancement or demand
   features that would not be available through direct ownership of the
   underlying Municipal Securities.

   Municipal Leases

   Municipal leases are obligations issued by state and local governments or
   authorities to finance the acquisition of equipment and facilities. They may
   take the form of a lease, an installment purchase contract, a conditional
   sales contract, or a participation interest in any of the above. Lease
   obligations may be subject to periodic appropriation. Municipal leases are
   subject to certain specific risks in the event of default or failure of
   appropriation.

Credit Enhancement

Certain of the Fund's acceptable investments may be credit-enhanced by a
guaranty, letter of credit, or insurance. Any bankruptcy, receivership, default,
or change in the credit quality of the party providing the credit enhancement
will adversely affect the quality and marketability of the underlying security
and could cause losses to the Fund and affect its share price. The Fund may have
more than 25% of its total assets invested in securities credit-enhanced by
banks.

Demand Features

The Fund may acquire securities that are subject to puts and standby commitments
("demand features") to purchase the securities at their principal amount
(usually with accrued interest) within a fixed period (usually seven days)
following a demand by the Fund. The demand feature may be issued by the issuer
of the underlying securities, a dealer in the securities, or by another third
party, and may not be transferred separately from the underlying security. The
Fund uses these arrangements to provide the Fund with liquidity and not to
protect against changes in the market value of the underlying securities. The
bankruptcy, receivership, or default by the issuer of the demand feature, or a
default on the underlying security or other event that terminates the demand
feature before its exercise, will adversely affect the liquidity of the
underlying security. Demand features that are exercisable even after a payment
default on the underlying security may be treated as a form of credit
enhancement.

When-Issued And Delayed Delivery Transactions

The Fund may purchase securities on a when-issued or delayed delivery basis.
These transactions are arrangements in which the Fund purchases securities with
payment and delivery scheduled for a future time. The seller's failure to
complete these transactions may cause the Fund to miss a price or yield
considered to be advantageous. Settlement dates may be a month or more after
entering into these transactions, and the market values of the securities
purchased may vary from the purchase prices.

The Fund may dispose of a commitment prior to settlement if the adviser deems it
appropriate to do so. In addition, the Fund may enter into transactions to sell
its purchase commitments to third parties at current market values and
simultaneously acquire other commitments to purchase similar securities at later
dates. The Fund may realize short-term profits or losses upon the sale of such
commitments.

Restricted And Illiquid Securities

   The Fund may invest in restricted securities. Restricted securities are any
securities in which the Fund may invest pursuant to its investment objective and
policies but which are subject to restrictions on resale under federal
securities law. Under criteria established by the Directors, certain restricted
securities are determined to be liquid. To the extent that restricted securities
are not determined to be liquid,the Fund will limit their purchase, together
with other illiquid securities, to 10% of its net assets.

Investing in Securities of Other Investment Companies

The Fund may invest its assets in securities of other invesment companies as an
efficient means of carrying out its investment policies. It should be noted that
investment companies incur certain expenses, such as management fees, and,
therefore, any investment by the Fund in shares of other investment companies
may be subject to such duplicate expenses.    

Temporary Investments

From time to time, when the investment adviser determines that market conditions
call for a temporary defensive posture, the Fund may invest in tax-exempt or
taxable securities, all of comparable quality to other securities in which the
Fund invests, such as: obligations issued by or on behalf of municipal or
corporate issuers; obligations issued or guaranteed by the U.S. government, its
agencies, or instrumentalities; instruments issued by a U.S. branch of a
domestic bank or other deposit institutions having capital, surplus, and
undivided profits in excess of $100,000,000 at the time of investment; and
repurchase agreements (arrangements in which the organization selling the Fund a
temporary investment agrees at the time of sale to repurchase it at a mutually
agreed upon time and price).

Although the Fund is permitted to make taxable, temporary investments, there is
no current intention to do so. However, the interest from certain Municipal
Securities is subject to the federal alternative minimum tax.

Municipal Securities

Municipal Securities are generally issued to finance public works, such as
airports, bridges, highways, housing, hospitals, mass transportation projects,
schools, streets, and water and sewer works. They are also issued to repay
outstanding obligations, to raise funds for general operating expenses, and to
make loans to other public institutions and facilities.

Municipal Securities include industrial development bonds issued by or on behalf
of public authorities to provide financing aid to acquire sites or construct and
equip facilities for privately or publicly owned corporations. The availability
of this financing encourages these corporations to locate within the sponsoring
communities and thereby increases local employment.

The two principal classifications of Municipal Securities are "general
obligation" and "revenue" bonds. General obligation bonds are secured by the
issuer's pledge of its full faith and credit and taxing power for the payment of
principal and interest. Interest on and principal of revenue bonds, however, are
payable only from the revenue generated by the facility financed by the bond or
other specified sources of revenue. Revenue bonds do not represent a pledge of
credit or create any debt of or charge against the general revenues of a
municipality or public authority.
Industrial development bonds are typically classified as revenue bonds.

Investment Risks

Yields on Municipal Securities depend on a variety of factors, including: the
general conditions of the short-term municipal note market and of the municipal
bond market; the size of the particular offering; the maturity of the
obligations; and the rating of the issue. The ability of the Fund to achieve its
investment objective also depends on the continuing ability of the issuers of
Municipal Securities and participation interests, or the credit enhancers of
either, to meet their obligations for the payment of interest and principal when
due. In addition, from time to time, the supply of Municipal Securities
acceptable for purchase by the Fund could become limited.

The Fund may invest in Municipal Securities which are repayable out of revenue
streams generated from economically related projects or facilities and/or whose
issuers are located in the same state. Sizable investments in these Municipal
Securities could involve an increased risk to the Fund should any of these
related projects or facilities experience financial difficulties.

Obligations of issuers of Municipal Securities are subject to the provisions of
bankruptcy, insolvency, and other laws affecting the rights and remedies of
creditors. In addition, the obligations of such issuers may become subject to
laws enacted in the future by Congress, state legislators, or referenda
extending the time for payment of principal and/or interest, or imposing other
constraints upon enforcement of such obligations or upon the ability of states
or municipalities to levy taxes. There is also the possibility that, as a result
of litigation or other conditions, the power or ability of any issuer to pay,
when due, the principal of and interest on its municipal securities may be
materially affected. The Fund's concentration in Municipal Securities may entail
a greater level of risk than other types of money market funds.

Investment Limitations

The Fund will not borrow money directly or through reverse repurchase agreements
(arrangements in which the Fund sells a money market instrument for a percentage
of its cash value with an agreement to buy it back on a set date) or pledge
securities except, under certain circumstances, the Fund may borrow up to
one-third of the value of its total assets and pledge up to 10% of its total
assets to secure such borrowings.

The above investment limitations cannot be changed without shareholder approval.


                                                                            

Management Of The Fund

Board Of Directors

The Fund is managed by a Board of Directors. The Directors are responsible for
managing the Fund's business affairs and for exercising all the Company's powers
except those reserved for the shareholders. An Executive Committee of the Board
of Directors handles the Board's responsibilities between meetings of the Board.

Investment Adviser

Investment decisions for the Fund are made by Federated Advisers, the Fund's
investment adviser, subject to direction by the Directors. The adviser
continually conducts investment research and supervision for the Fund and is
responsible for the purchase and sale of portfolio instruments.

   Advisory Fees

   The adviser receives an annual investment advisory fee equal to 0.50% of the
   Fund's average daily net assets. The adviser may voluntarily choose to waive
   a portion of its fee or reimburse other expenses of the Fund, but reserves
   the right to terminate such waiver or reimbursement at any time at its sole
   discretion.

   Adviser's Background

   Federated Advisers, a Delaware business trust, organized on April 11, 1989,
   is a registered investment adviser under the Investment Advisers Act of 1940.
   It is a subsidiary of Federated Investors. All of the Class A (voting) shares
   of Federated Investors are owned by a trust, the trustees of which are John
   F. Donahue, Chairman and Trustee of Federated Investors, Mr. Donahue's wife,
   and Mr. Donahue's son, J. Christopher Donahue, who is President and Trustee
   of Federated Investors.

   Federated Advisers and other subsidiaries of Federated Investors serve as
   investment advisers to a number of investment companies and private accounts.
   Certain other subsidiaries also provide administrative services to a number
   of investment companies. With over $110 billion invested across over 300
   funds under management and/or administration by its subsidiaries, as of
   December 31, 1996, Federated Investors is one of the largest mutual fund
   investment managers in the United States. With more than 2,000 employees,
   Federated continues to be led by the management who founded the company in
   1955. Federated funds are presently at work in and through 4,500 financial
   institutions nationwide.

Both the Company and the adviser have adopted strict codes of ethics governing
the conduct of all employees who manage the Fund and its portfolio securities.
These codes recognize that such persons owe a fiduciary duty to the Fund's
shareholders and must place the interests of shareholders ahead of the
employees' own interests. Among other things, the codes: require preclearance
and periodic reporting of personal securities transactions; prohibit personal
transactions in securities being purchased or sold, or being considered for
purchase or sale, by the Fund; prohibit purchasing securities in initial public
offerings; and prohibit taking profits on securities held for less than sixty
days. Violations of the codes are subject to review by the Directors, and could
result in severe penalties.

Distribution Of Shares

Federated Securities Corp. is the principal  distributor for shares of the Fund.
It is a  Pennsylvania  corporation  organized on November  14, 1969,  and is the
principal distributor for a number of investment companies. Federated Securities
Corp. is a subsidiary of Federated Investors.

Distribution Plan And Shareholder Services

Under a distribution plan adopted in accordance with Rule 12b-1 under the
Investment Company Act of 1940 (the "Plan"), the distributor may select
financial institutions such as banks, fiduciaries, custodians for public funds,
investment advisers and broker/dealers to provide distribution and/or
administrative services as agents for their clients or customers. These services
may include, but are not limited to the following functions: providing office
space, equipment, telephone facilities, and various personnel including
clerical, supervisory, and computer as necessary or beneficial to establish and
maintain shareholder accounts and records; processing purchase and redemption
transactions and automatic investments of client account cash balances;
answering routine client inquiries regarding the Fund; assisting clients in
changing dividend options, account designations, and addresses; and providing
such other services as the Fund reasonably requests.

The distributor will pay financial institutions a fee based upon shares subject
to the Plan and owned by their clients or customers. The schedules of such fees
and the basis upon such fees will be paid will be determined from time to time
by the Directors of the Fund provided that for any period the total amount of
these fees shall not exceed an annual rate of 0.35% of the average net asset
value of shares subject to the Plan held during the period by clients or
customers of financial institutions. The current annual rate of such fees is
0.35%. Any fees paid by the distributor under the Plan will be reimbursed from
the assets of the Fund.

In addition, the Fund has entered into a Shareholder Services Agreement with
Federated Shareholder Services, a subsidiary of Federated Investors, under which
the Fund may make payments up to 0.25% of the average daily net asset value of
its shares to obtain certain personal services for shareholders and to maintain
shareholder accounts. Under the Shareholder Services Agreement, Federated
Shareholder Services will either perform shareholder services directly or will
select financial institutions to perform shareholder services. Financial
institutions will receive fees based upon shares owned by their clients or
customers. The schedules of such fees and the basis upon which such fees will be
paid will be determined from time to time by the Fund and Federated Shareholder
Services.

Supplemental Payments To Financial Institutions

In addition to payments made pursuant to the Distribution Plan and Shareholder
Services Agreement, Federated Securities Corp. and Federated Shareholder
Services, from their own assets, may pay financial institutions supplemental
fees for the performance of substantial sales services, distribution-related
support services, or shareholder services. The support may include sponsoring
sales, educational and training seminars for their employees, providing sales
literature, and engineering computer software programs that emphasize the
attributes of the Fund. Such assistance will be predicated upon the amount of
shares the financial institution sells or may sell and/or the type and nature of
sales or marketing support furnished by the financial institution. Any payments
made by the distributor may be reimbursed by the Fund's investment adviser or
its affiliates.

Administration Of The Fund

Administrative Services

Federated Services Company, a subsidiary of Federated Investors, provides
administrative personnel and services (including certain legal and financial
reporting services) necessary to operate the Fund at an annual rate which
relates to the average aggregate daily net assets of all funds advised by
affiliates of Federated Investors specified below:

Maximum    Average Aggregate
Fee Daily Net Assets 0.150%on the first $250 million 0.125%on the next $250
 million 0.100%on the next $250 million 0.075%on assets in excess of $750
 million

The administrative fee received during any fiscal year shall be at least
$125,000 per portfolio and $30,000 per each additional class of shares.
Federated Services Company may choose voluntarily to waive a portion of its fee.


                                                                           

The Fund attempts to stabilize the net asset value of its shares at $1.00 by
valuing the portfolio securities using the amortized cost method. The net asset
value per share is determined by subtracting total liabilities from total assets
and dividing the remainder by the number of shares outstanding. The Fund cannot
guarantee that its net asset value will always remain at $1.00 per share.

The net asset value is determined at 12:00 noon, 3:00 p.m. (Eastern time), and
as of the close of trading (normally 4:00 p.m., Eastern time) on the New York
Stock Exchange, Monday through Friday, except on New Year's Day, Martin Luther
King Day, Presidents' Day, Good Friday, Memorial Day, Independence Day, Labor
Day, Thanksgiving Day, and Christmas Day.


                                                                           

Shares are sold at their net asset value, without a sales charge, next
determined after an order is received, on days which the New York Stock Exchange
is open for business. Shares may be purchased as described below, either through
a financial institution (such as a bank or broker/dealer) or by wire or by check
directly from the Fund, with a minimum initial investment of $10,000 or more or
additional investments of as little as $500. Financial institutions may impose
different minimum investment requirements on their customers.

In connection with any sale, Federated Securities Corp. may from time to time
offer certain items of nominal value to any shareholder or investor. The Fund
reserves the right to reject any purchase request. An account must be
established at a financial institution or by completing, signing, and returning
the new account form available from the Fund before shares can be purchased.

Purchasing Shares Through a
Financial Institution

Investors may purchase shares through a financial institution which has a sales
agreement with the distributor. Orders are considered received when the Fund
receives payment by wire or converts payment by check from the financial
institution into federal funds. It is the financial institution's responsibility
to transmit orders promptly. Financial institutions may charge additional fees
for their services.

Purchasing Shares by Wire

Shares may be purchased by wire by calling the Fund before 3:00 p.m. (Eastern
time) to place an order. The order is considered received immediately. Payment
by federal funds must be received before 3:00 p.m. (Eastern time) in order to
begin earning dividends that same day. Federal funds should be wired as follows:
Federated Shareholder Services Company, c/o State Street Bank and Trust Company,
Boston, MA; Attention: EDGEWIRE; For Credit to: Municipal Cash Series; Fund
Number (this number can be found on the account statement or by contacting the
Fund); Group Number or Order Number; Nominee or Institution Name; and ABA Number
011000028. Shares cannot be purchased by wire on holidays when wire transfers
are restricted. Questions on wire purchases should be directed to your
shareholder services representative at the telephone number listed on your
account statement.

Purchasing Shares by Check

Shares may be purchased by sending a check to Federated Shareholder Services
Company, P.O. Box 8600, Boston, MA 02266-8600. The check should be made payable
to Municipal Cash Series. Please include an account number on the check. Orders
by mail are considered received when payment by check is converted into federal
funds (normally the business day after the check is received), and shares begin
earning dividends the next day.

Special Purchase Features

Systematic Investment Program

A minimum of $500 can be automatically withdrawn periodically from the
shareholder's checking account at an Automated Clearing House ("ACH") member and
invested in Fund shares. Shareholders should contact their financial institution
or the Fund to participate in this program.


                                                                              

Shares are redeemed at their net asset value next determined after Federated
Shareholder Services Company receives the redemption request. Redemptions will
be made on days on which the Fund computes its net asset value. Redemption
requests must be received in proper form and can be made as described below.

Redeeming Shares Through a
Financial Institution

Shares may be redeemed by contacting the shareholder's financial institution.
Shares will be redeemed at the net asset value next determined after Federated
Shareholder Services Company receives the redemption request. According to the
shareholder's instructions, redemption proceeds can be sent to the financial
institution or to the shareholder by check or by wire. The financial institution
is responsible for promptly submitting redemption requests and providing proper
written redemption instructions. Customary fees and commissions may be charged
by the financial institution for this service.

Redeeming Shares by Telephone

Redemptions in any amount may be made by calling the Fund provided the Fund has
a properly completed authorization form. These forms can be obtained from
Federated Securities Corp. Proceeds from redemption requests before 12:00 noon
(Eastern time) will be wired the same day to the shareholder's account at a
domestic commercial bank which is a member of the Federal Reserve System, but
will not include that day's dividend. Proceeds from redemption requests received
after that time include that day's dividend but will be wired the following
business day. Under limited circumstances, arrangements may be made with the
distributor for same-day payment of proceeds, without that day's dividend, for
redemption requests received before 2:00 p.m. (Eastern time). Proceeds from
redeemed shares purchased by check or through ACH will not be wired until that
method of payment has cleared. Proceeds from redemption requests on holidays
when wire transfers are restricted will be wired the following business day.
Questions about telephone redemptions on days when wire transfers are restricted
should be directed to your shareholder services representative at the telephone
number listed on your account statement.

Telephone instructions may be recorded and if reasonable procedures are not
followed by the Fund, it may be liable for losses due to unauthorized or
fraudulent telephone instructions.

In the event of drastic economic or market changes, a shareholder may experience
difficulty in redeeming by telephone. If this occurs, "Redeeming Shares by Mail"
should be considered. If at any time the Fund shall determine it necessary to
terminate or modify the telephone redemption privilege, shareholders would be
promptly notified.

Redeeming Shares by Mail

Shares may be redeemed in any amount by mailing a written request to: Federated
Shareholder Services Company, P.O. Box 8600, Boston, MA 02266-8600. If share
certificates have been issued, they should be sent unendorsed with the written
request by registered or certified mail to the address noted above.

The written request should state: the Fund name; the account name as registered
with the Fund; the account number; and the number of shares to be redeemed or
the dollar amount requested. All owners of the account must sign the request
exactly as the shares are registered. Normally, a check for the proceeds is
mailed within one business day, but in no event more than seven days, after the
receipt of a proper written redemption request. Dividends are paid up to and
including the day that a redemption request is processed.

Shareholders requesting a redemption of any amount to be sent to an address
other than that on record with the Fund or a redemption payable other than to
the shareholder of record must have their signatures guaranteed by a commercial
or savings bank, trust company or savings association whose deposits are insured
by an organization which is administered by the Federal Deposit Insurance
Corporation; a member firm of a domestic stock exchange; or any other "eligible
guarantor institution," as defined in the Securities Exchange Act of 1934. The
Fund does not accept signatures guaranteed by a notary public.

Special Redemption Features

Check Writing

Upon request, a checking account will be established to allow shareholders to
redeem their Fund shares. Shareholder accounts will continue to receive the
daily dividend declared on the shares to be redeemed until the check is
presented to UMB Bank, N.A., the bank responsible for administering the check
writing program, for payment. However, checks should never be made payable or
sent to UMB Bank, N.A. or the Fund to redeem shares, and a check may not be
written to close an account.

Debit Card

Upon request, a debit account will be established. This account allows
shareholders to redeem shares by using a debit card. A fee will be charged to
the account for this service.

Systematic Withdrawal Program

If a shareholder's account has a value of at least $10,000, other than
retirement accounts subject to required minimum distributions, a systematic
withdrawal program may be established whereby automatic redemptions are made
from the account and transferred electronically to any commercial bank, savings
bank, or credit union that is an ACH member. Shareholders may apply for
participation in this program through their financial institutions or the Fund.


                                                                         

Dividends

Dividends are declared daily and paid monthly. Dividends are automatically
reinvested on payment dates in additional shares of the Fund unless cash
payments are requested by writing to the Fund. Shares purchased by wire before
3:00 p.m. (Eastern time) begin earning dividends that day. Shares purchased by
check begin earning dividends the day after the check is converted into federal
funds.

Capital Gains

The Fund does not expect to realize any capital gains or losses. If capital
gains or losses were to occur, they could result in an increase or decrease in
dividends. The Fund will distribute in cash or additional shares any realized
net long-term capital gains at least once every 12 months.

Confirmations and Account Statements

Shareholders will receive detailed confirmations of transactions (except for
systematic program transactions). In addition, shareholders will receive
periodic statements reporting all account activity, including dividends paid.
The Fund will not issue share certificates.

Accounts with Low Balances

Due to the high cost of maintaining accounts with low balances, the Fund may
redeem shares in any account and pay the proceeds to the shareholder if the
account balance falls below a required minimum value of $10,000 due to
shareholder redemptions. Before shares are redeemed to close an account, the
shareholder is notified in writing and allowed 30 days to purchase additional
shares to meet the minimum requirement.

Voting Rights

Each share of the Company owned by a shareholder gives that shareholder one vote
in Director elections and other matters submitted to shareholders for vote. All
shares of each portfolio in the Company have equal voting rights, except that in
matters affecting only a particular portfolio, only shareholders of that
portfolio are entitled to vote. The Company is not required to hold annual
shareholder meetings. Shareholder approval will be sought only for certain
changes in the Company's or the Fund's operation and for election of Directors
under certain circumstances.

Directors may be removed by the Directors or by shareholders at a special
meeting. A special meeting shall be called by the Directors upon the written
request of shareholders owning at least 10% of the outstanding shares of the
Company.

As of September 5, 1997, McDonald & Co. Securities, Inc., Cincinnati, Ohio,
owned 32.59% of the voting securities of the Fund, and, therefore, may, for
certain purposes, be deemed to control the Fund and be able to affect the
outcome of certain matters presented for a vote of shareholders.


                                                                         

Federal Income Tax

The Fund will pay no federal income tax because it expects to meet requirements
of the Internal Revenue Code applicable to regulated investment companies and to
receive the special tax treatment afforded to such companies. The Fund will be
treated as a single, separate entity for federal income tax purposes so that
income (including capital gains) and losses realized by the Company's other
portfolios will not be combined for tax purposes with those realized by the
Fund.

Shareholders are not required to pay the federal regular income tax on any
dividends received from the Fund that represent net interest on tax-exempt
municipal bonds. However, under the Tax Reform Act of 1986, dividends
representing net interest earned on certain "private activity" bonds issued
after August 7, 1986, may be included in calculating the federal individual
alternative minimum tax or the federal alternative minimum tax for corporations.
The Fund may purchase, within the limits of its investment policies, all types
of municipal bonds, including private activity bonds.

The alternative minimum tax applies when it exceeds the regular tax for the
taxable year. Alternative minimum taxable income is equal to the regular taxable
income of the taxpayer increased by certain "tax preference" items not included
in regular taxable income and reduced by only a portion of the deductions
allowed in the calculation of the regular tax.

Dividends of the Fund representing net interest income earned on some temporary
investments and any realized net short-term gains are taxed as ordinary income.

These tax consequences apply whether dividends are received in cash or as
additional shares.

State And Local Taxes

Company shares are exempt from personal property taxes imposed by counties,
municipalities, and school districts in Pennsylvania.

Because interest received by the Fund may not be exempt from all state and local
income taxes, shareholders may be required to pay state and local taxes on
dividends received from the Fund. Shareholders are urged to consult their own
tax advisers regarding the status of their accounts under state and local tax
laws.


                                                                             

From time to time, the Fund advertises its yield, effective yield,
tax-equivalent yield, and total return.

Yield represents the annualized rate of income earned on an investment over a
seven-day period. It is the annualized dividends earned during the period on an
investment shown as a percentage of the investment. The effective yield is
calculated similarly to the yield, but when annualized, the income earned by an
investment is assumed to be reinvested daily. The effective yield will be
slightly higher than the yield because of the compounding effect of this assumed
reinvestment. The tax-equivalent yield is calculated similarly to the yield, but
is adjusted to reflect the taxable yield that would have to be earned to equal
the Fund's tax-exempt yield, assuming a specific tax rate.

Total return represents the change, over a specified period of time, in the
value of an investment in the Fund after reinvesting all income distributions.
It is calculated by dividing that change by the initial investment and is
expressed as a percentage.

From time to time, advertisements for the Fund may refer to ratings, rankings,
and other information in certain financial publications and/or compare the
Fund's performance to certain indices.



<PAGE>






                                                                            





<PAGE>


[Graphic]


Municipal Cash Series
(A Portfolio of Cash Trust Series, Inc.)
Prospectus
   September 30, 1998    

An Open-End Management Investment Company


Municipal Cash Series
Federated Investors Tower
Pittsburgh, PA 15222-3779

Distributor
Federated Securities Corp.
Federated Investors Tower
Pittsburgh, PA 15222-3779

Investment Adviser
Federated Advisers
Federated Investors Tower
Pittsburgh, PA 15222-3779

Custodian
State Street Bank and Trust Company
P.O. Box 8600
Boston, MA 02266-8600

Transfer Agent and Dividend Disbursing Agent
Federated Shareholder Services Company
P.O. Box 8600
Boston, MA 02266-8600

Independent Public Accountants
Deloitte & Touche LLP
2500 One PPG Place
Pittsburgh, PA 15222
Federated Securities Corp., Distributor

Cusip 147551303
   9080102A (9/98)    
[Graphic]




Municipal Cash Series

(A Portfolio of Cash Trust Series, Inc.)



                       Statement of Additional Information











   This Statement of Additional Information should be read with the prospectus
of Municipal Cash Series (the "Fund"), a portfolio of Cash Trust Series, Inc.
(the "Company") dated September 30, 1998. This Statement is not a prospectus.
You may request a copy of a prospectus or a paper copy of this Statement, if you
have received it electronically, free of charge by calling 1-800-341-7400.    

Federated Investors Tower
Pittsburgh, PA 15222-3779
                       Statement dated September 30, 1998    

Cusip 147551303
   9080102B (9/98)    



<PAGE>



                                                                             




<PAGE>



                                                                              

Unless indicated otherwise, the policies described below may be changed by the
Board of Directors (the "Directors") without shareholder approval. Shareholders
will be notified before any material change in these policies becomes effective.

Acceptable Investments

When determining whether a security presents minimal credit risks, the
investment adviser will consider the creditworthiness of: the issuer of the
security; the issuer of any demand feature applicable to the security; or any
guarantor of either the security or any demand feature.

Participation Interests

The financial institutions from which the Fund purchases participation interests
frequently provide or secure from another financial institution irrevocable
letters of credit or guarantees and give the Fund the right to demand payment of
the principal amounts of the participation interests plus accrued interest on
short notice (usually within seven days). The municipal securities subject to
the participation interests are not limited to the Fund's maximum maturity
requirements so long as the participation interests include the right to demand
payment from the issuers of those interests. By purchasing these participation
interests, the Fund is buying a security meeting the maturity and quality
requirements of the Fund and also is receiving the tax-free benefits of the
underlying securities.

Municipal Leases

The Fund may purchase municipal securities in the form of participation
interests that represent an undivided proportional interest in lease payments by
a governmental or nonprofit entity. The lease payments and other rights under
the lease provide for and secure payments on the certificates. Lease obligations
may be limited by municipal charter or the nature of the appropriation for the
lease. Furthermore, a lease may provide that the participants cannot accelerate
lease obligations upon default. The participants would only be able to enforce
lease payments as they became due. In the event of a default or failure of
appropriation, unless the participation interests are credit enhanced, it is
unlikely that the participants would be able to obtain an acceptable substitute
source of payment.

In determining the liquidity of municipal lease securities, the investment
adviser, under the authority delegated by the Directors, will base its
determination on the following factors: whether the lease can be terminated by
the lessee; the potential recovery, if any, from a sale of the leased property
upon termination of the lease; the lessee's general credit strength (e.g., its
debt, administrative, economic and financial characteristics and prospects); the
likelihood that the lessee will discontinue appropriating funding for the leased
property because the property is no longer deemed essential to its operations
(e.g., the potential for an "event of non-appropriation"); and any credit
enhancement or legal recourse provided upon an event of non-appropriation or
other termination of the lease.

Ratings

The securities in which the Fund invests must be rated in one of the two highest
short-term rating categories by one or more nationally recognized statistical
rating organizations ("NRSROs") or be of comparable quality to securities having
such ratings. An NRSRO's two highest rating categories are determined without
regard for sub-categories and gradations. For example, securities rated SP-1+,
SP-1, or SP-2 by Standard & Poor's Ratings Group ("S&P"), MIG-1 or MIG-2 by
Moody's Investors Service, Inc. ("Moody's"), or F-1+, F-1, or F-2 by Fitch
Investors Service, Inc. ("Fitch") are all considered rated in one of the two
highest short-term rating categories. The Fund will follow applicable
regulations in determining whether a security rated by more than one NRSRO can
be treated as being in one of the two highest short-term rating categories;
currently, such securities must be rated by two NRSROs in one of their two
highest rating categories. See "Regulatory Compliance."

When-Issued and Delayed Delivery Transactions

These transactions are made to secure what is considered to be an advantageous
price or yield for the Fund. No fees or other expenses, other than normal
transaction costs, are incurred. However, liquid assets of the Fund in a dollar
amount sufficient to make payment for the securities to be purchased are:
segregated on the Fund's records at the trade date; marked to market daily; and
maintained until the transaction is settled. The Fund does not intend to engage
in when-issued and delayed delivery transactions to an extent that would cause
the segregation of more than 20% of the total value of its assets.

Repurchase Agreements

Certain securities in which the Fund invests may be purchased pursuant to
repurchase agreements. Repurchase agreements are arrangements in which banks,
broker/dealers, and other recognized financial institutions sell securities to
the Fund and agree at the time of sale to repurchase them at a mutually agreed
upon time and price. To the extent that the seller does not repurchase the
securities from the Fund, the Fund could receive less than the repurchase price
on any sale of such securities. The Fund or its custodian will take possession
of the securities subject to repurchase agreements, and these securities will be
marked to market daily. In the event that a defaulting seller filed for
bankruptcy or became insolvent, disposition of such securities by the Fund might
be delayed pending court action. The Fund believes that under the regular
procedures normally in effect for custody of the Fund's portfolio securities
subject to repurchase agreements, a court of competent jurisdiction would rule
in favor of the Fund and allow retention or disposition of such securities. The
Fund will only enter into repurchase agreements with banks and other recognized
financial institutions, such as broker/dealers, which are deemed by the Fund's
adviser to be creditworthy pursuant to guidelines established by the Directors.

Reverse Repurchase Agreements

The Fund may also enter into reverse repurchase agreements. These transactions
are similar to borrowing cash. In a reverse repurchase agreement, the Fund
transfers possession of a portfolio instrument in return for a percentage of the
instrument's market value in cash and agrees that on a stipulated date in the
future the Fund will repurchase the portfolio instrument by remitting the
original consideration plus interest at an agreed upon rate. The use of reverse
repurchase agreements may enable the Fund to avoid selling portfolio instruments
at a time when a sale may be deemed to be disadvantageous, but does not ensure
this result. However, liquid assets of the Fund, in a dollar amount sufficient
to make payment for the securities to be purchased, are: segregated on the
Fund's records at the trade date; marked to market daily; and maintained until
the transaction is settled.

Credit Enhancement

The Fund typically evaluates the credit quality and ratings of credit-enhanced
securities based upon the financial condition and ratings of the party providing
the credit enhancement (the "credit enhancer"), rather than the issuer.

The Fund may have more than 25% of its total assets invested in securities
credit enhanced by banks.

   Restricted and Illiquid Securities

The Fund may invest in commercial paper issued in reliance on the exemption from
registration afforded by Section 4(2) of the Securities Act of 1933. Section
4(2) commercial paper is restricted as to disposition under federal securities
law, and is generally sold to institutional investors, such as the Fund, who
agree that they are purchasing the paper for investment purposes and not with a
view to public distribution. Any resale by the purchaser must be in an exempt
transaction. Section 4(2) commercial paper is normally resold to other
institutional investors like the Fund through or with the assistance of the
issuer or investment dealers who make a market in Section 4(2) commercial paper,
thus providing liquidity. The Fund believes that Section 4(2) commercial paper
and possibly certain other restricted securities which meet the criteria for
liquidity established by the Directors of the Fund are quite liquid. The Fund
intends, therefore, to treat the restricted securities which meet the criteria
for liquidity established by the Directors, including Section 4(2) commercial
paper, as determined by the Fund's investment adviser, as liquid and not subject
to the investment limitation applicable to illiquid securities.

Investing in Securities of Other Investment Companies

The Fund may invest in the securities of affiliated money market funds as an
efficient means of managing the Fund's uninvested cash.    


                                                                     

Selling Short and Buying on Margin

The Fund will not sell any securities short or purchase any securities on margin
but may obtain such short-term credits as are necessary for clearance of
transactions.

Issuing Senior Securities and Borrowing Money

The Fund will not issue senior securities except that the Fund may borrow money
directly or through reverse repurchase agreements in amounts up to one-third of
the value of its total assets, including the amounts borrowed.

The Fund will not borrow money or engage in reverse repurchase agreements for
investment leverage, but rather as a temporary, extraordinary, or emergency
measure or to facilitate management of the portfolio by enabling the Fund to
meet redemption requests when the liquidation of portfolio securities is deemed
to be inconvenient or disadvantageous. The Fund will not purchase any securities
while borrowings in excess of 5% of the value of its total assets are
outstanding. During the period any reverse repurchase agreements are
outstanding, the Fund will restrict the purchase of portfolio securities to
money market instruments maturing on or before the expiration date of the
reverse repurchase agreements, but only to the extent necessary to assure
completion of the reverse repurchase agreements.

Pledging Assets

The Fund will not mortgage, pledge, or hypothecate any assets except as
necessary to secure permitted borrowings. In those cases, it may pledge assets
having a market value not exceeding the lesser of the dollar amounts borrowed or
10% of the value of total assets at the time of the borrowing.

Lending Cash or Securities

The Fund will not lend any of its assets, except that it may acquire publicly or
non-publicly issued municipal securities or temporary investments or enter into
repurchase agreements, in accordance with its investment objective, policies,
limitations or Articles of Incorporation.

Investing in Commodities

The Fund will not purchase or sell commodities, commodity contracts, or
commodity futures contracts.

Investing in Real Estate

The Fund will not purchase or sell real estate, although it may invest in
municipal securities of issuers whose business involves the purchase or sale of
real estate or in securities which are secured by real estate or interests in
real estate.

Underwriting

The Fund will not underwrite any issue of securities, except as it may be deemed
to be an underwriter under the Securities Act of 1933 in connection with the
sale of securities in accordance with its investment objective, policies, and
limitations.

Concentration of Investments

The Fund will not purchase securities if, as a result of such purchase, 25% or
more of the value of its total assets would be invested in any one industry or
in industrial development bonds or other securities, the interest upon which is
paid from revenues of similar types of projects. However, the Fund may invest as
temporary investments 25% or more of the value of its assets in cash or cash
items, securities issued or guaranteed by the U.S. government, its agencies, or
instrumentalities, or instruments secured by these money market instruments,
such as repurchase agreements.

   The above limitations cannot be changed without shareholder approval. The
following limitations, however, may be changed by the Directors without
shareholder approval. Shareholders will be notified before any material change
in these limitations becomes effective.

Investing in Restricted and Illiquid Securities

The Fund will not invest more than 10% of the value of its net assets in
illiquid securities.

    Investing for Control

The Fund will not invest in securities of a company for the purpose of
exercising control or management.

Investing in Options

The Fund will not invest in puts, calls, straddles, spreads, or any combination
of them.

For purposes of the above limitations, the Fund considers certificates of
deposit and demand and time deposits issued by a U.S. branch of a domestic bank
or savings association having capital, surplus, and undivided profits in excess
of $100,000,000 at the time of investment to be "cash items." Except with
respect to borrowing money, if a percentage limitation is adhered to at the time
of investment, a later increase or decrease in percentage resulting from any
change in value or net assets will not result in a violation of such limitation.

The Fund did not borrow money or pledge  securities in excess of 5% of the value
of its net assets during the last fiscal year and has no present intent to do so
during the coming fiscal year.

Regulatory Compliance

   The Fund may follow non-fundamental operational policies that are more
restrictive than its fundamental investment limitations, as set forth in the
prospectus and this Statement of Additional Information, in order to comply with
applicable laws and regulations, including the provisions of and regulations
under the Investment Company Act of 1940. In particular, the Fund will comply
with the various requirements of Rule 2a-7, which regulates money market mutual
funds. For example, with limited exceptions, Rule 2a-7 prohibits the investment
of more than 5% of the Fund's total assets in the securities of any one issuer,
although the Fund's investment limitation only requires such 5% diversification
ith respect to 75% of its assets. The Fund will invest more than 5% of its
assets in any one issuer only under the circumstances permitted by Rule 2a-7.
The Fund will determine the effective maturity of its investments, as well as
its ability to consider a security as having received the requisite short-term
ratings by NRSROs, according to Rule 2a-7. The Fund may change these operational
policies to reflect changes in the laws and regulations without the approval of
its shareholders.    




<PAGE>



                                                                                

Officers and Directors are listed with their addresses, birthdates, present
positions with Cash Trust Series, Inc., and principal occupations.


John F. Donahue@*
Federated Investors Tower
Pittsburgh, PA

Birthdate: July 28, 1924

Chairman and Director

Chairman  and  Trustee,  Federated  Investors,   Federated  Advisers,  Federated
Management,  and Federated Research;  Chairman and Director,  Federated Research
Corp. and Federated Global Research Corp.;  Chairman,  Passport Research,  Ltd.;
Chief Executive Officer and Director or Trustee of the Funds. Mr. Donahue is the
father of J. Christopher  Donahue,  Executive Vice President and Director of the
Company.


Thomas G. Bigley
15 Old Timber Trail
Pittsburgh, PA

Birthdate: February 3, 1934

Director

Chairman of the Board, Children's Hospital of Pittsburgh; formerly, Senior
Partner, Ernst & Young LLP; Director, MED 3000 Group, Inc.; Director, Member of
Executive Committee, University of Pittsburgh; Director or Trustee of the Funds.


John T. Conroy, Jr.
Wood/IPC Commercial Department
John R. Wood and Associates, Inc., Realtors
3255 Tamiami Trail North
Naples, FL

Birthdate: June 23, 1937

Director

President,  Investment Properties  Corporation;  Senior Vice-President,  John R.
Wood and Associates,  Inc., Realtors;  Partner or Trustee in private real estate
ventures in Southwest Florida; formerly,  President, Naples Property Management,
Inc. and Northgate Village Development  Corporation;  Director or Trustee of the
Funds.


William J. Copeland
One PNC Plaza--23rd Floor
Pittsburgh, PA

Birthdate: July 4, 1918

Director

Director and Member of the Executive Committee, Michael Baker, Inc.; formerly,
Vice Chairman and Director, PNC Bank, N.A., and PNC Bank Corp.; Director, Ryan
Homes, Inc.; Director or Trustee of the Funds.



<PAGE>




J. Christopher Donahue*
Federated Investors Tower
Pittsburgh, PA

Birthdate: April 11, 1949

Executive Vice President and Director

President and Trustee, Federated Investors, Federated Advisers, Federated
Management, and Federated Research; President and Director, Federated Research
Corp. and Federated Global Research Corp.; President, Passport Research, Ltd.;
Trustee, Federated Shareholder Services Company, and Federated Shareholder
Services; Director, Federated Services Company; President or Executive Vice
President of the Funds; Director or Trustee of some of the Funds. Mr. Donahue is
the son of John F. Donahue, Chairman and Director of the Company.


James E. Dowd
571 Hayward Mill Road
Concord, MA

Birthdate: May 18, 1922

Director

Attorney-at-law;  Director, The Emerging Germany Fund, Inc.; Director or Trustee
of the Funds.


Lawrence D. Ellis, M.D.*
3471 Fifth Avenue, Suite 1111
Pittsburgh, PA

Birthdate: October 11, 1932

Director

Professor of Medicine, University of Pittsburgh; Medical Director, University of
Pittsburgh Medical Center--Downtown; Member, Board of Directors, University of
Pittsburgh Medical Center; formerly, Hematologist, Oncologist, and Internist,
Presbyterian and Montefiore Hospitals; Director or Trustee of the Funds.


Edward L. Flaherty, Jr.@
Miller, Ament, Henny & Kochuba
205 Ross Street
Pittsburgh, PA

Birthdate: June 18, 1924

Director

Attorney of Counsel, Miller, Ament, Henny & Kochuba; Director, Eat'N Park
Restaurants, Inc.; formerly, Counsel, Horizon Financial, F.A., Western Region;
Director or Trustee of the Funds.



<PAGE>




Peter E. Madden
One Royal Palm Way
100 Royal Palm Way
Palm Beach, FL

Birthdate: March 16, 1942

Director

Consultant; Former State Representative, Commonwealth of Massachusetts;
formerly, President, State Street Bank and Trust Company and State Street Boston
Corporation; Director or Trustee of the Funds.


Gregor F. Meyer
203 Kensington Ct.
Pittsburgh, PA

Birthdate: October 6, 1926

Director

Chairman, Meritcare, Inc.; Director, Eat'N Park Restaurants, Inc.; Retired from
the law firm of Miller, Ament, Henny & Kochuba; Director or Trustee of the
Funds.


John E. Murray, Jr., J.D., S.J.D.
President, Duquesne University
Pittsburgh, PA

Birthdate: December 20, 1932

Director

President, Law Professor, Duquesne University; Consulting Partner, Mollica &
Murray; Director or Trustee of the Funds.


Wesley W. Posvar
1202 Cathedral of Learning
University of Pittsburgh
Pittsburgh, PA

Birthdate: September 14, 1925

Director

Professor, International Politics; Management Consultant; Trustee, Carnegie
Endowment for International Peace, RAND Corporation, Online Computer Library
Center, Inc., National Defense University and U.S. Space Foundation; President
Emeritus, University of Pittsburgh; Founding Chairman, National Advisory Council
for Environmental Policy and Technology, Federal Emergency Management Advisory
Board and Czech Management Center, Prague; Director or Trustee of the Funds.



<PAGE>




Marjorie P. Smuts
4905 Bayard Street
Pittsburgh, PA

Birthdate: June 21, 1935

Director

Public  Relations/Marketing/Conference  Planning;  Director  or  Trustee  of the
Funds.


Richard B. Fisher
Federated Investors Tower
Pittsburgh, PA

Birthdate: May 17, 1923

President

Executive Vice President and Trustee, Federated Investors; Chairman and
Director, Federated Securities Corp.; President or Vice President of some of the
Funds; Director or Trustee of some of the Funds.


Edward C. Gonzales
Federated Investors Tower
Pittsburgh, PA

Birthdate: October 22, 1930

Executive Vice President

Vice Chairman, Treasurer, and Trustee, Federated Investors; Vice President,
Federated Advisers, Federated Management, Federated Research, Federated Research
Corp., Federated Global Research Corp. and Passport Research, Ltd.; Executive
Vice President and Director, Federated Securities Corp.; Trustee, Federated
Shareholder Services Company; Trustee or Director of some of the Funds;
President, Executive Vice President and Treasurer of some of the Funds.


John W. McGonigle
Federated Investors Tower
Pittsburgh, PA

Birthdate: October 26, 1938

Executive Vice President, Secretary, and Treasurer

Executive Vice President, Secretary, and Trustee, Federated Investors; Trustee,
Federated Advisers, Federated Management, and Federated Research; Director,
Federated Research Corp. and Federated Global Research Corp.; Trustee, Federated
Shareholder Services Company; Director, Federated Services Company; President
and Trustee, Federated Shareholder Services; Director, Federated Securities
Corp.; Executive Vice President and Secretary of the Funds; Treasurer of some of
the Funds.


* This Director is deemed to be an "interested person" as defined in the
Investment Company Act of 1940.

@  Member of the Executive Committee. The Executive Committee of the Board of
   Directors handles the responsibilities of the Board between meetings of the
   Board.

As referred to in the list of Directors and Officers, "Funds" includes the
following investment companies: 111 Corcoran Funds; Arrow Funds; Automated
Government Money Trust; Blanchard Funds; Blanchard Precious Metals Fund, Inc.;
Cash Trust Series II; Cash Trust Series, Inc.; DG Investor Series; Edward D.
Jones & Co. Daily Passport Cash Trust; Federated Adjustable Rate U.S. Government
Fund, Inc.; Federated American Leaders Fund, Inc.; Federated ARMs Fund;
Federated Equity Funds; Federated Equity Income Fund, Inc.; Federated Fund for
U.S. Government Securities, Inc.; Federated GNMA Trust; Federated Government
Income Securities, Inc.; Federated Government Trust; Federated High Income Bond
Fund, Inc.; Federated High Yield Trust; Federated Income Securities Trust;
Federated Income Trust; Federated Index Trust; Federated Institutional Trust;
Federated Insurance Series; Federated Investment Portfolios; Federated
Investment Trust; Federated Master Trust; Federated Municipal Opportunities
Fund, Inc.; Federated Municipal Securities Fund, Inc.; Federated Municipal
Trust; Federated Short-Term Municipal Trust; Federated Short-Term U.S.
Government Trust; Federated Stock and Bond Fund, Inc.; Federated Stock Trust;
Federated Tax-Free Trust; Federated Total Return Series, Inc.; Federated U.S.
Government Bond Fund; Federated U.S. Government Securities Fund: 1-3 Years;
Federated U.S. Government Securities Fund: 2-5 Years; Federated U.S. Government
Securities Fund: 5-10 Years; Federated Utility Fund, Inc.; First Priority Funds;
Fixed Income Securities, Inc.; High Yield Cash Trust; Intermediate Municipal
Trust; International Series, Inc.; Investment Series Funds, Inc.; Investment
Series Trust; Liberty Term Trust, Inc.--1999; Liberty U.S. Government Money
Market Trust; Liquid Cash Trust; Managed Series Trust; Money Market Management,
Inc.; Money Market Obligations Trust; Money Market Obligations Trust II; Money
Market Trust; Municipal Securities Income Trust; Newpoint Funds; RIMCO Monument
Funds; Targeted Duration Trust; Tax-Free Instruments Trust; The Planters Funds;
The Virtus Funds; Trust for Financial Institutions; Trust for Government Cash
Reserves; Trust for Short-Term U.S. Government Securities; Trust for U.S.
Treasury Obligations; WesMark Funds; and World Investment Series, Inc.

Share Ownership

Officers and Directors as a group own less than 1% of the Fund.

As of September 5, 1997, the following shareholders of record owned 5% or more
of the outstanding shares of the Fund: BHC Securities, Inc., Philadelphia, PA,
owned approximately 35,212,819 shares (6.55%) and McDonald & Co. Securities,
Inc., Cincinnati, OH, owned approximately 175,230,603 shares (32.59%).



<PAGE>


Director Compensation

<TABLE>
<CAPTION>

<S>                            <C>             <C>   

                            AGGREGATE
NAME,                     COMPENSATION
POSITION WITH                 FROM                TOTAL COMPENSATION PAID
COMPANY                     COMPANY*#               FROM FUND COMPLEX

John F. Donahue,            $0          $0 for the Fund and
Chairman and Director                   56 other investment companies in the Fund Complex
Thomas G. Bigley,       $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
John T. Conroy, Jr.,    $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
William J. Copeland,    $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
J. Christopher Donahue,     $0          $0 for the Fund and
Director                                18 other investment companies in the Fund Complex
James E. Dowd,          $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
Lawrence D. Ellis, M.D.,$4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Edward L. Flaherty, Jr.,$4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
Peter E. Madden,        $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Gregor F. Meyer,        $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
John E. Murray, Jr.,    $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Wesley W. Posvar,       $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Marjorie P. Smuts,      $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex

</TABLE>

* Information is furnished for the fiscal year ended May 31, 1997.
# The aggregate compensation is provided for the Company which is comprised of 
  four portfolios.  The information is provided for the last calendar year.

Director Liability

The Articles of Incorporation provide that the Directors will not be liable for
errors of judgment or mistakes of fact or law. However, they are not protected
against any liability to which they would otherwise be subject by reason of
willful misfeasance, bad faith, gross negligence, or reckless disregard of the
duties involved in the conduct of their office.


                                                                        

Investment Adviser

The Fund's investment adviser is Federated Advisers. It is a subsidiary of
Federated Investors. All the voting securities of Federated Investors are owned
by a trust, the trustees of which are John F. Donahue, his wife and his son, J.
Christopher Donahue.

The adviser shall not be liable to the Company, the Fund, or any shareholder of
the Fund for any losses that may be sustained in the purchase, holding, or sale
of any security or for anything done or omitted by it, except acts or omissions
involving willful misfeasance, bad faith, gross negligence, or reckless
disregard of the duties imposed upon it by its contract with the Company.

Advisory Fees

For its advisory services, Federated Advisers receives an annual investment
advisory fee as described in the prospectus. For the fiscal years ended May 31,
1997, 1996, and 1995, the adviser earned $2,782,055, $2,478,141, and $2,619,462,
respectively, of which $497,998, $390,103, and $264,144, respectively, were
waived.


                                                                           

When selecting brokers and dealers to handle the purchase and sale of portfolio
instruments, the adviser looks for prompt execution of the order at a favorable
price. In working with dealers, the adviser will generally use those who are
recognized dealers in specific portfolio instruments, except when a better price
and execution of the order can be obtained elsewhere. The adviser makes
decisions on portfolio transactions and selects brokers and dealers subject to
guidelines established by the Directors. The adviser may select brokers and
dealers who offer brokerage and research services. These services may be
furnished directly to the Fund or to the adviser and may include: advice as to
the advisability of investing in securities; security analysis and reports;
economic studies; industry studies; receipt of quotations for portfolio
evaluations; and similar services. Research services provided by brokers and
dealers may be used by the adviser or its affiliates in advising the Fund and
other accounts. To the extent that receipt of these services may supplant
services for which the adviser or its affiliates might otherwise have paid, it
would tend to reduce their expenses. The adviser and its affiliates exercise
reasonable business judgment in selecting brokers who offer brokerage and
research services to execute securities transactions. They determine in good
faith that commissions charged by such persons are reasonable in relationship to
the value of the brokerage and research services provided. During the fiscal
years ended May 31, 1997, 1996, and 1995, the Fund paid no brokerage
commissions.

Although investment decisions for the Fund are made independently from those of
the other accounts managed by the adviser, investments of the type the Fund may
make may also be made by those other accounts. When the Fund and one or more
other accounts managed by the adviser are prepared to invest in, or desire to
dispose of, the same security, available investments or opportunities for sales
will be allocated in a manner believed by the adviser to be equitable to each.
In some cases, this procedure may adversely affect the price paid or received by
the Fund or the size of the position obtained or disposed of by the Fund. In
other cases, however, it is believed that coordination and the ability to
participate in volume transactions will be to the benefit of the Fund.


                                                                                

Fund Administration

Federated Services Company, a subsidiary of Federated Investors, provides
administrative personnel and services to the Fund for a fee as described in the
prospectus. From March 1, 1994 to March 1, 1996, Federated Administrative
Services, a subsidiary of Federated Investors, served as the Fund's
Administrator. For purposes of this Statement of Additional Information,
Federated Services Company and Federated Administrative Services may hereinafter
collectively be referred to as the "Administrators." For the fiscal years ended
May 31, 1997, 1996, and 1995, the Administrators earned $420,342, $374,937, and
$396,587, respectively.

Custodian and Portfolio Accountant

State Street Bank and Trust Company, Boston, Massachusetts, is custodian for the
securities and cash of the Fund. Federated Services Company, Pittsburgh,
Pennsylvania, provides certain accounting and recordkeeping services with
respect to the Fund's portfolio investments. The fee paid for this service is
based upon the level of the Fund's average net assets for the period plus
out-of-pocket expenses.

Transfer Agent

Federated Services Company, through its registered transfer agent, Federated
Shareholder Services Company, maintains all necessary shareholder records. For
its services, the transfer agent receives a fee based on the size, type, and
number of accounts and transactions made by shareholders.

Independent Public Accountants

The independent public accountants for the Fund are Deloitte & Touche LLP,
Pittsburgh, Pennsylvania.


                                                                         

These arrangements permit the payment of fees to financial institutions, the
distributor, and Federated Shareholder Services, to stimulate distribution
activities and to cause services to be provided to shareholders by a
representative who has knowledge of the shareholder's particular circumstances
and goals. These activities and services may include but are not limited to
marketing efforts; providing office space, equipment, telephone facilities, and
various clerical, supervisory, computer, and other personnel as necessary or
beneficial to establish and maintain shareholder accounts and records;
processing purchase and redemption transactions and automatic investments of
client account cash balances; answering routine client inquiries; and assisting
clients in changing dividend options, account designations, and addresses.

By adopting the Plan, the Directors expect that the Fund will be able to achieve
a more predictable flow of cash for investment purposes and to meet redemptions.
This will facilitate more efficient portfolio management and assist the Fund in
seeking to achieve its investment objectives. By identifying potential investors
whose needs are served by the Fund's objectives, and properly servicing these
accounts, the Fund may be able to curb sharp fluctuations in rates of
redemptions and sales.

Other benefits, which may be realized under either arrangement, may include: (1)
providing personal services to shareholders; (2) investing shareholder assets
with a minimum of delay and administrative detail; (3) enhancing shareholder
recordkeeping systems; and (4) responding promptly to shareholders' requests and
inquiries concerning their accounts.

For the fiscal year ended May 31, 1997, payments in the amount of $556,411 were
made pursuant to the Plan, all of which was paid to financial institutions. In
addition, for the fiscal year, the Fund paid shareholder service fees in the
amount of $1,391,027.


                                                                              

The Directors have decided that the best method for determining the value of
portfolio instruments is amortized cost. Under this method, portfolio
instruments are valued at the acquisition cost as adjusted for amortization of
premium or accumulation of discount rather than at current market value.
Accordingly, neither the amount of daily income nor the net asset value is
affected by any unrealized appreciation or depreciation of the portfolio. In
periods of declining interest rates, the indicated daily yield on shares of the
Fund computed by dividing the annualized daily income on the Fund's portfolio by
the net asset value computed as above may tend to be higher than a similar
computation made by using a method of valuation based upon market prices and
estimates. In periods of rising interest rates, the opposite may be true.

The Fund's use of the amortized cost method of valuing portfolio instruments
depends on its compliance with certain conditions in Rule 2a-7 (the "Rule")
promulgated by the Securities and Exchange Commission under the Investment
Company Act of 1940. Under the Rule, the Directors must establish procedures
reasonably designed to stabilize the net asset value per share, as computed for
purposes of distribution and redemption, at $1.00 per share, taking into account
current market conditions and the Fund's investment objective. The procedures
include monitoring the relationship between the amortized cost value per share
and the net asset value per share based upon available indications of market
value. The Directors will decide what, if any, steps should be taken if there is
a difference of more than 0.5% between the two values. The Directors will take
any steps they consider appropriate (such as redemption in kind or shortening
the average portfolio maturity) to minimize any material dilution or other
unfair results arising from differences between the two methods of determining
net asset value.


                                                                              

The Fund is obligated to redeem shares solely in cash up to $250,000 or 1% of
the Fund's net asset value, whichever is less, for any one shareholder within a
90-day period. Any redemption beyond this amount will also be in cash unless the
Directors determine that further payments should be in kind. In such cases, the
Fund will pay all or a portion of the remainder of the redemption in portfolio
instruments valued in the same way as the Fund determines net asset value. The
portfolio instruments will be selected in a manner that the Directors deem fair
and equitable. Redemption in kind is not as liquid as a cash redemption. If
redemption is made in kind, shareholders who sell these securities could receive
less than the redemption value and could incur certain transaction costs.


                                                                               

To qualify for the special tax treatment afforded to regulated investment
companies, the Fund must, among other requirements: derive at least 90% of its
gross income from dividends, interest, and gains from the sale of securities;
derive less than 30% of its gross income from the sale of securities held less
than three months; invest in securities within certain statutory limits; and
distribute to its shareholders at least 90% of its net income earned during the
year.


                                                                  

Performance depends upon such variables as: portfolio quality; average portfolio
maturity; type of instruments in which the portfolio is invested; changes in
interest rates; changes in expenses; and the relative amount of cash flow. To
the extent that financial institutions and broker/dealers charge fees in
connection with services provided in conjunction with an investment in shares of
the Fund, the performance will be reduced for those shareholders paying those
fees.

Yield

The yield is calculated based upon the seven days ending on the day of the
calculation, called the "base period." This yield is computed by: determining
the net change in the value of a hypothetical account with a balance of one
share at the beginning of the base period, with the net change excluding capital
changes but including the value of any additional shares purchased with
dividends earned from the original one share and all dividends declared on the
original and any purchased shares; dividing the net change in the account's
value by the value of the account at the beginning of the base period to
determine the base period return; and multiplying the base period return by
365/7.

The Fund's yield for the seven-day period ended May 31, 1997, was 3.06%.

Effective Yield

The effective  yield is calculated by compounding the  unannualized  base period
return by:  adding 1 to the base period  return;  raising the sum to the 365/7th
power; and subtracting 1 from the result.

The Fund's effective yield for the seven-day period ended May 31, 1997, was
3.10%.

Tax-Equivalent Yield

The tax-equivalent yield of the Fund is calculated similarly to the yield but is
adjusted to reflect the taxable yield that the Fund would have had to earn to
equal its actual yield, assuming 39.60% tax rate (the maximum effective federal
rate for individuals) and assuming that the income is 100% tax exempt.

The Fund's tax-equivalent yield for the seven-day period ended May 31, 1997, was
5.13%.

Tax-Equivalency Table

A tax-equivalency table may be used in advertising and sales literature. The
interest earned by the municipal securities in the Fund's portfolio generally
remains free from federal regular income tax,* and is often free from state and
local taxes as well. As the table below indicates, a "tax-free" investment can
be an attractive choice for investors, particularly in times of narrow spreads
between tax-free and taxable yields.


             TAXABLE YIELD EQUIVALENT FOR 1997
                MULTISTATE MUNICIPAL FUNDS

FEDERAL INCOME TAX BRACKET:
             15.00%   28.00%    31.00%     36.00%    39.60%
JOINT         $1-    $41,201-  $99,601-   $151,751-   OVER
RETURN      41,200    99,600    151,750    271,050  $271,050
SINGLE        $1-    $24,651-  $59,751-   $124,651-   OVER
RETURN      24,650    59,750    124,650    271,050  $271,050

Tax-Exempt
Yield                  Taxable Yield Equivalent
1.00%         1.18%     1.39%     1.45%      1.56%     1.66%
1.50%         1.76%     2.08%     2.17%      2.34%     2.48%
2.00%         2.35%     2.78%     2.90%      3.13%     3.31%
2.50%         2.94%     3.47%     3.62%      3.91%     4.14%
3.00%         3.53%     4.17%     4.35%      4.69%     4.97%
3.50%         4.12%     4.86%     5.07%      5.47%     5.79%
4.00%         4.71%     5.56%     5.80%      6.25%     6.62%
4.50%         5.29%     6.25%     6.52%      7.03%     7.45%
5.00%         5.88%     6.94%     7.25%      7.81%     8.28%
5.50%         6.47%     7.64%     7.97%      8.59%     9.11%
6.00%         7.06%     8.33%     8.70%      9.38%     9.93%
6.50%         7.65%     9.03%     9.42%     10.16%    10.76%
7.00%         8.24%     9.72%    10.14%     10.94%    11.59%
7.50%         8.82%    10.42%    10.87%     11.72%    12.42%
8.00%         9.41%    11.11%    11.59%     12.50%    13.25%

Note: The maximum marginal tax rate for each bracket was used in calculating the
taxable yield equivalent. Furthermore, additional state and local taxes paid on
comparable taxable investments were not used to increase federal deductions.

The chart above is for illustrative purposes only. It is not an indicator of
past or future performance of the Fund.

* Some portion of the Fund's income may be subject to the federal alternative
minimum tax and state and local taxes.

Total Return

Average annual total return is the average compounded rate of return for a given
period that would equate a $1,000 initial investment to the ending redeemable
value of that investment. The ending redeemable value is computed by multiplying
the number of shares owned at the end of the period by the net asset value per
share at the end of the period. The number of shares owned at the end of the
period is based on the number of shares purchased at the beginning of the period
with $1,000, adjusted over the period by any additional shares, assuming the
monthly reinvestment of all dividends and distributions.

The Fund's average annual total returns for the one-year period and five-year
period ended May 31, 1997, and for the period from August 25, 1989 (date of
initial public investment) through May 31, 1997, were 2.80%, 2.52% and 3.34%,
respectively.

Performance Comparisons

Investors may use financial publications and/or indices to obtain a more
complete view of the Fund's performance. When comparing performance, investors
should consider all relevant factors such as the composition of any index used,
prevailing market conditions, portfolio compositions of other funds, and methods
used to value portfolio securities and compute offering price. The financial
publications and/or indices which the Fund uses in advertising may include:

  o Lipper Analytical Services, Inc., ranks funds in various fund categories
    based on total return, which assumes the reinvestment of all income
    dividends and capital gains distributions, if any.

  o IBC/Donoghue's Money Fund Report publishes annualized yields of money market
    funds weekly. Donoghue's Money Market Insight publication reports monthly
    and 12-month-to-date investment results for the same money funds.

  o Money, a monthly magazine, regularly ranks money market funds in various
categories based on the latest available seven-day effective yield.

Advertising and other promotional literature may include charts, graphs and
other illustrations using the Fund's returns, or returns in general, that
demonstrate basic investment concepts such as tax-deferred compounding,
dollar-cost averaging and systematic investment. In addition, the Fund can
compare its performance, or performance for the types of securities in which it
invests, to a variety of other investments, such as bank savings accounts,
certificates of deposit, and Treasury bills.

Economic and Market Information

Advertising and sales literature for the Fund may include discussions of
economic, financial and political developments and their effect on the
securities market. Such discussions may take the form of commentary on these
developments by portfolio managers and their views and analysis on how such
developments could affect the funds. In addition, advertising and sales
literature may quote statistics and give general information about the mutual
fund industry, including the growth of the industry, from sources such as the
Investment Company Institute.


                                                                             

Federated Investors is dedicated to meeting investor needs which is reflected in
its investment decision making--structured, straightforward, and consistent.
This has resulted in a history of competitive performance with a range of
competitive investment products that have gained the confidence of thousands of
clients and their customers.

The company's disciplined security selection process is firmly rooted in sound
methodologies backed by fundamental and technical research. Investment decisions
are made and executed by teams of portfolio managers, analysts, and traders
dedicated to specific market sectors. These traders handle trillions of dollars
in annual trading volume.

In the money market sector, Federated Investors gained prominence in the mutual
fund industry in 1974 with the creation of the first institutional money market
fund. Simultaneously, the company pioneered the use of the amortized cost method
of accounting for valuing shares of money market funds, a principal means used
by money managers today to value money market fund shares. Other innovations
include the first institutional tax-free money market fund. As of December 31,
1996, Federated Investors managed more than $50.3 billion in assets across 50
money market funds, including 18 government, 11 prime and 21 municipal with
assets approximating $28.0 billion, $12.8 billion and $9.5 billion,
respectively.

J. Thomas Madden, Executive Vice President, oversees Federated Investors' equity
and high-yield corporate bond management while William D. Dawson, Executive Vice
President, oversees Federated Investors' domestic fixed income management. Henry
A. Frantzen, Executive Vice President, oversees the management of Federated
Investors' international and global portfolios.

Mutual Fund Market

Thirty-seven percent of American households are pursuing their financial goals
through mutual funds. These investors, as well as businesses and institutions,
have entrusted over $3.5 trillion to the more than 6,000 funds available.*

Federated Investors, through its subsidiaries, distributes mutual funds for a
variety of investment applications. Specific markets include:

Institutional Clients

Federated Investors meets the needs of more than 4,000 institutional clients
nationwide by managing and servicing separate accounts and mutual funds for a
variety of applications, including defined benefit and defined contribution
programs, cash management, and asset/liability management. Institutional clients
include corporations, pension funds, tax-exempt entities,
foundations/endowments, insurance companies, and investment and financial
advisors. The marketing effort to these institutional clients is headed by John
B. Fisher, President, Institutional Sales Division.

Bank Marketing

Other institutional clients include close relationships with more than 1,600
banks and trust organizations. Virtually all of the trust divisions of the top
100 bank holding companies use Federated funds in their clients' portfolios. The
marketing effort to trust clients is headed by Timothy C. Pillion, Senior Vice
President, Bank Marketing & Sales.

Broker/Dealers and Bank Broker/Dealer Subsidiaries

Federated funds are available to consumers through major brokerage firms
nationwide--we have over 2,200 broker/dealer and bank broker/dealer
relationships across the country--supported by more wholesalers than any other
mutual fund distributor. Federated's service to financial professionals and
institutions has earned it high ratings in several surveys performed by DALBAR,
Inc. DALBAR is recognized as the industry benchmark for service quality
measurement. The marketing effort to these firms is headed by James F. Getz,
President, Federated Securities Corp.


                                                                            

The financial statements for Municipal Cash Series for the fiscal year ended May
31, 1997, are incorporated herein by reference to the Annual Report to
Shareholders of Municipal Cash Series dated May 31, 1997.







* Source: Investment Company Institute




<PAGE>


                                                                             

Standard & Poor's Ratings Group

Short-Term Municipal Obligations Ratings

A Standard & Poor's Ratings Group (S&P) note rating reflects the liquidity
concerns and market access risks unique to notes.

SP-1--Very strong or strong capacity to pay principal and interest. Those issues
determined to possess overwhelming safety characteristics will be given a plus
sign (+) designation.

SP-2--Satisfactory capacity to pay principal and interest.

Variable Rate Demand Notes (VRDNs) and Tender Option Bonds (TOBs) Ratings
S&P assigns dual ratings to all long-term debt issues that have as part of their
provisions a variable rate demand feature. The first rating (long-term rating)
addresses the likelihood of repayment of principal and interest when due, and
the second rating (short-term rating) describes the demand characteristics.
Several examples are AAA/A-l+, AA/A-I+, A/A-1. (The definitions for the
long-term and the short-term ratings are provided below.)

Commercial Paper (CP) Ratings
An S&P commercial paper rating is a current  assessment of the likelihood of 
timely payment of debt having an original maturity of no more than 365
days.

A-1--This highest category indicates that the degree of safety regarding timely
payment is strong. Those issues determined to possess extremely strong safety
characteristics are denoted with a plus sign (+) designation.

A-2--Capacity for timely payment on issues with this designation is
satisfactory. However, the relative degree of safety is not as high as for
issues designated A-1.

Long-Term Debt Ratings
AAA--Debt rated "AAA" has the highest rating assigned by S&P. Capacity to pay
interest and repay principal is extremely strong.

AA--Debt rate "AA" has a very strong capacity to pay interest and repay
principal and differs from the highest rated issues only in small degree.

A--Debt rated "A" has a strong capacity to pay interest and repay principal
although it is somewhat more susceptible to the adverse effects of changes in
circumstances and economic conditions than debt in higher rated categories.

Moody's Investors Service, Inc.

Short-Term Municipal Obligation Ratings
Moody's Investor Service, Inc. (Moody's) short-term ratings are designated
Moody's Investment Grade (MIG or VMIG) (see below). The purpose of the MIG or
VMIG ratings is to provide investors with a simple system by which the relative
investment qualities of short-term obligations may be evaluated.

MIG1--This designation denotes best quality. There is present strong protection
by established cash flows, superior liquidity support or demonstrated broad
based access to the market for refinancing.

MIG2--This designation denotes high quality. Margins of protection are ample
although not so large as in the preceding group.

Variable Rate Demand Notes (VRDNs) and Tender Option Bonds (TOBs) Ratings
Short-term ratings on issues with demand features are differentiated by the use
of the VMIG symbol to reflect such characteristics as payment upon periodic
demand rather than fixed maturity dates and payment relying on external
liquidity. In this case, two ratings are usually assigned, (for example,
Aaa/VMIG-1); the first representing an evaluation of the degree of risk
associated with scheduled principal and interest payments, and the second
representing an evaluation of the degree of risk associated with the demand
feature. The VMIG rating can be assigned a 1 or 2 designation using the same
definitions described above for the MIG rating.

Commercial Paper (CP) Ratings
P-1--Issuers rated Prime-1 (or related supporting institutions) have a superior
capacity for repayment of short-term promissory obligations. Prime-1 repayment
capacity will normally be evidenced by the following characteristics: leading
market positions in well established industries, high rates of return on funds
employed, conservative capitalization structure with moderate reliance on debt
and ample asset protection, broad margins in earning coverage of fixed financial
charges and high internal cash generation, well-established access to a range of
financial markets and assured sources of alternate liquidity.

P-2--Issuers rated Prime-2 (or related supporting institutions) have a strong
capacity for repayment of short-term promissory obligations. This will normally
be evidenced by many of the characteristics cited above, but to a lesser degree.
Earnings trends and coverage ratios, while sound, will be more subject to
variation. Capitalization characteristics, while still appropriate, may be more
affected by external conditions. Ample alternate liquidity is maintained.

Long-Term Debt Ratings
Aaa--Bonds which are rated Aaa are judged to be of the best quality. They carry
the smallest degree of investment risk and are generally referred to as "gilt
edged." Interest payments are protected by a large or by an exceptionally stable
margin and principal is secure. While the various protective elements are likely
to change, such changes as can be visualized are most unlikely to impair the
fundamentally strong position of such issues.

Aa--Bonds which are rated Aa are judged to be of high quality by all standards.
Together with the Aaa group, they comprise what are generally known as high
grade bonds. They are rated lower than the best bonds because margins of
protection may not be as large as in Aaa securities or fluctuation of protective
elements may be of greater amplitude or there may be other elements present
which make the long-term risks appear somewhat larger than in Aaa securities.

A--Bonds which are rated A possess many favorable investment attributes and are
to be considered as upper medium grade obligations. Factors giving security to
principal and interest are considered adequate but elements may be present which
suggest a susceptibility to impairment sometime in the future.

NR--Indicates that both the bonds and the obligor or credit enhancer are not
currently rated by S&P or Moody's with respect to short-term indebtedness.
However, management considers them to be of comparable quality to securities
rated A-1 or P-1.

NR(1)--The underlying issuer/obligor/guarantor has other outstanding debt rated
"AAA" by S&P or "Aaa" by Moody's.

NR(2)--The underlying issuer/obligor/guarantor has other outstanding debt rated
"AA" by S&P or "Aa" by Moody's.

NR(3)--The underlying issuer/obligor/guarantor has other outstanding debt rated
"A" by S&P or Moody's.

Fitch Investors Service, Inc.

Short-Term Debt Ratings Definitions
F-1+--Exceptionally Strong Credit Quality. Issues assigned this rating are
regarded as having the strongest degree of assurance for timely payment.

F-1--Very Strong Credit Quality. Issues assigned this rating reflect an
assurance for timely payment, only slightly less in degree than issues rated
F-1+.

F-2--Good Credit Quality. Issues carrying this rating have a satisfactory degree
of assurance for timely payment, but the margin of safety is not as great as for
issues assigned F-1+ and F-1 ratings.




Prime Cash Series

(A Portfolio of Cash Trust Series, Inc.)




                                                                    Prospectus











The shares of Prime Cash Series (the "Fund") offered by this prospectus
represent interests in a portfolio of Cash Trust Series, Inc. (the "Company"),
an open-end management investment company (a mutual fund). The Fund invests in
short-term money market securities to achieve current income consistent with
stability of principal and liquidity.

The shares offered by this prospectus are not deposits or obligations of any
bank, are not endorsed or guaranteed by any bank and are not insured or
guaranteed by the U.S. government, the Federal Deposit Insurance Corporation,
the Federal Reserve Board, or any other government agency. Investment in these
shares involves investment risks, including possible loss of principal. The Fund
attempts to maintain a stable net asset value of $1.00 per share; there can be
no assurance that the Fund will be able to do so. This prospectus contains the
information you should read and know before you invest in the Fund. Keep this
prospectus for future reference.

   The Fund has also filed a Statement of Additional Information dated September
30, 1998, with the Securities and Exchange Commission ("SEC"). The information
contained in the Statement of Additional Information is incorporated by
reference into this prospectus. You may request a copy of the Statement of
Additional Information or a paper copy of this prospectus, if you have received
your prospectus electronically, free of charge by calling 1-800-341-7400. To
obtain other information, or make inquiries about the Fund, contact your
financial institution. The Statement of Additional Information, material
incorporated by reference into this document, and other information regarding
the Fund is maintained electronically with the SEC at Internet Web site
(http://www.sec.gov).    

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
   Prospectus dated September 30, 1998    






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The Company was established as a Maryland corporation under Articles of
Incorporation dated February 1, 1993. The Articles of Incorporation permit the
Company to offer separate series of shares representing interests in separate
portfolios of securities. The Fund is designed for customers of financial
institutions such as banks, fiduciaries, custodians of public funds, investment
advisers and broker/dealers as a convenient means of accumulating an interest in
a professionally managed portfolio investing in short-term money market
securities. A minimum initial investment of $10,000 is required, except for
retirement plans.

The Fund attempts to stabilize the value of a share at $1.00. Shares are
currently sold and redeemed at that price.


                                                                   

Investment Objective

The investment objective of the Fund is current income consistent with stability
of principal and liquidity. This investment objective cannot be changed without
shareholder approval. While there is no assurance that the Fund will achieve its
investment objective, it endeavors to do so by complying with the
diversification and other requirements of Rule 2a-7 under the Investment Company
Act of 1940 which regulates money market mutual funds and by following the
investment policies described in this prospectus.

Investment Policies

The Fund pursues its investment objective by investing in a portfolio of money
market securities maturing in 13 months or less. The average maturity of the
securities in the Fund's portfolio, computed on a dollar-weighted basis, will be
90 days or less. Unless indicated otherwise, the investment policies may be
changed by the Board of Directors (the "Directors") without shareholder
approval. Shareholders will be notified before any material change in these
policies becomes effective.

   Acceptable Investments

The Fund invests in high quality money market instruments that are either rated
in one of the two highest short-term rating categories by one or more nationally
recognized statistical rating organizations or are of comparable quality to
securities having such ratings. Examples of these instruments include, but are
not limited to:

      n domestic issues of corporate debt obligations, including variable rate
demand notes;

      n commercial paper (including Canadian Commercial Paper and Europaper);

      n certificates of deposit, demand and time deposits, bankers' acceptances
        and other instruments of domestic and foreign banks and other deposit
        institutions ("Bank Instruments");

      n short-term credit facilities;

      n asset-backed securities;

      n obligations issued or guaranteed as to payment of principal and interest
        by the U.S. government or one of its agencies or
        instrumentalities; and

      n other money market instruments.

The Fund invests only in instruments denominated and payable in U.S. dollars.

  Variable Rate Demand Notes
      Variable rate demand notes are long-term debt instruments that have
      variable or floating interest rates and provide the Fund with the right to
      tender the security for repurchase at its stated principal amount plus
      accrued interest. Such securities typically bear interest at a rate that
      is intended to cause the securities to trade at par. The interest rate may
      float or be adjusted at regular intervals (ranging from daily to
      annually), and is normally based on a published interest rate or interest
      rate index. Most variable rate demand notes allow the Fund to demand the
      repurchase of the security on not more than seven days prior notice. Other
      notes only permit the Fund to tender the security at the time of each
      interest rate adjustment or at other fixed intervals. See "Demand
      Features." The Fund treats variable rate demand notes as maturing on the
      later of the date of the next interest rate adjustment or the date on
      which the Fund may next tender the security for repurchase.

  Bank Instruments
      The Fund only invests in Bank Instruments either issued by an institution
      having capital, surplus and undivided profits over $100 million, or
      insured by the Bank Insurance Fund or the Savings Association Insurance
      Fund. Bank Instruments may include Eurodollar Certificates of Deposit
      ("ECDs"), Yankee Certificates of Deposit ("Yankee CDs") and Eurodollar
      Time Deposits ("ETDs"). The Fund will treat securities credit enhanced
      with a bank's letter of credit as Bank Instruments.

  Asset-Backed Securities
      Asset-backed securities are securities issued by special purpose entities
      whose primary assets consist of a pool of loans or accounts receivable.
      The securities may take the form of beneficial interests in special
      purpose trusts, limited partnership interests, or commercial paper or
      other debt securities issued by a special purpose corporation. Although
      the securities often have some form of credit or liquidity enhancement,
      payments on the securities depend predominantly upon collections of the
      loans and receivables held by the issuer.

  Short-Term Credit Facilities
      The Fund may enter into, or acquire participations in, short-term
      borrowing arrangements with corporations, consisting of either a
      short-term revolving credit facility or a master note agreement payable
      upon demand. Under these arrangements, the borrower may reborrow funds
      during the term of the facility. The Fund treats any commitments to
      provide such advances as a standby commitment to purchase the borrower's
      notes.

   Repurchase Agreements

Certain securities in which the Fund invests may be purchased pursuant to
repurchase agreements. Repurchase agreements are arrangements in which banks,
broker/dealers, and other recognized financial institutions sell securities to
the Fund and agree at the time of sale to repurchase them at a mutually agreed
upon time and price. To the extent that the seller does not repurchase the
securities from the Fund, the Fund could receive less than the repurchase price
on any sale of such securities.

   Credit Enhancement

Certain of the Fund's acceptable investments may be credit-enhanced by a
guaranty, letter of credit, or insurance. Any bankruptcy, receivership, default,
or change in the credit quality of the party providing the credit enhancement
will adversely affect the quality and marketability of the underlying security
and could cause losses to the Fund and affect its share price.

   Demand Features

The Fund may acquire securities that are subject to puts and standby commitments
("demand features") to purchase the securities at their principal amount
(usually with accrued interest) within a fixed period (usually seven days)
following a demand by the Fund. The demand feature may be issued by the issuer
of the underlying securities, a dealer in the securities, or by another third
party, and may not be transferred separately from the underlying security. The
Fund uses these arrangements to provide the Fund with liquidity and not to
protect against changes in the market value of the underlying securities. The
bankruptcy, receivership, or default by the issuer of the demand feature, or a
default on the underlying security or other event that terminates the demand
feature before its exercise, will adversely affect the liquidity of the
underlying security. Demand features that are exercisable even after a payment
default on the underlying security may be treated as a form of credit
enhancement.

   When-Issued and Delayed Delivery Transactions

The Fund may purchase securities on a when-issued or delayed delivery basis.
These transactions are arrangements in which the Fund purchases securities with
payment and delivery scheduled for a future time. The seller's failure to
complete these transactions may cause the Fund to miss a price or yield
considered to be advantageous. Settlement dates may be a month or more after
entering into these transactions, and the market values of the securities
purchased may vary from the purchase prices.

The Fund may dispose of a commitment prior to settlement if the adviser deems it
appropriate to do so. In addition, the Fund may enter into transactions to sell
its purchase commitments to third parties at current market values and
simultaneously acquire other commitments to purchase similar securities at later
dates. The Fund may realize short-term profits or losses upon the sale of such
commitments.

   Lending of Portfolio Securities

In order to generate additional income, the Fund may lend its portfolio
securities on a short-term or long-term basis, or both, to broker/dealers,
banks, or other institutional borrowers of securities. The Fund will only enter
into loan arrangements with broker/dealers, banks, or other institutions which
the adviser has determined are creditworthy under guidelines established by the
Fund's Directors and will receive collateral at all times equal to at least 100%
of the value of the securities loaned. There is the risk that when lending
portfolio securities, the securities may not be available to the Fund on a
timely basis and the Fund may, therefore, lose the opportunity to sell the
securities at a desirable price. In addition, in the event that a borrower of
securities would file for bankruptcy or become insolvent, disposition of the
securities may be delayed pending court action.

   Restricted and Illiquid Securities

   The Fund may invest in restricted securities. Restricted securities are any
securities in which the Fund may invest pursuant to its investment objective and
policies but which are subject to restrictions on resale under federal
securities law. Under criteria established by the Directors, certain restricted
securities are determined to be liquid. To the extent that restricted securities
are not determined to be liquid,the Fund will limit their purchase, together
with other illiquid securities, to 10% of its net assets.

Investing in Securities of Other Investment Companies

The Fund may invest its assets in securities of other invesment companies as an
efficient means of carrying out its investment policies. It should be noted that
investment companies incur certain expenses, such as management fees, and,
therefore, any investment by the Fund in shares of other investment companies
may be subject to such duplicate expenses.    

   Concentration of Investments

   As a matter of policy which cannot be changed without shareholder approval,
the Fund will not invest 25% or more of its total assets in any one industry.
However, investing in U.S. government securities and domestic bank instruments
shall not be considered investments in any one industry.    

Investment Risks

ECDs, ETDs, Yankee CDs, Canadian Commercial Paper, and Europaper are subject to
different risks than domestic obligations of domestic banks or corporations.
Examples of these risks include international economic and political
developments, foreign governmental restrictions that may adversely affect the
payment of principal or interest, foreign withholding or other taxes on interest
income, difficulties in obtaining or enforcing a judgment against the issuing
entity, and the possible impact of interruptions in the flow of international
currency transactions. Risks may also exist for ECDs, ETDs, and Yankee CDs
because the banks issuing these instruments, or their domestic or foreign
branches, are not necessarily subject to the same regulatory requirements that
apply to domestic banks, such as reserve requirements, loan limitations,
examinations, accounting, auditing, recordkeeping, and the public availability
of information. These factors will be carefully considered by the Fund's adviser
in selecting investments for the Fund.

Investment Limitations

The Fund will not borrow money directly or through reverse repurchase agreements
(arrangements in which the Fund sells a money market instrument for a percentage
of its cash value with an agreement to buy it back on a set date) or pledge
securities except, under certain circumstances, the Fund may borrow up to
one-third of the value of its total assets and pledge up to 10% of its total
assets to secure such borrowings.

The above investment limitations cannot be changed without shareholder approval.


                                                                    

Management of the Fund

   Board of Directors

The Fund is managed by a Board of Directors. The Directors are responsible for
managing the Fund's business affairs and for exercising all the Company's powers
except those reserved for the shareholders. An Executive Committee of the Board
of Directors handles the Board's responsibilities between meetings of the Board.

   Investment Adviser

Investment decisions for the Fund are made by Federated Advisers, the Fund's
investment adviser, subject to direction by the Directors. The adviser
continually conducts investment research and supervision for the Fund and is
responsible for the purchase and sale of portfolio instruments.

  Advisory Fees
      The adviser receives an annual investment advisory fee equal to 0.50% of
      the Fund's average daily net assets. The adviser may voluntarily choose to
      waive a portion of its fee or reimburse other expenses of the Fund, but
      reserves the right to terminate such waiver or reimbursement at any time
      at its sole discretion.

  Adviser's Background
      Federated Advisers, a Delaware business trust, organized on April 11,
      1989, is a registered investment adviser under the Investment Advisers Act
      of 1940. It is a subsidiary of Federated Investors. All of the Class A
      (voting) shares of Federated Investors are owned by a trust, the trustees
      of which are John F. Donahue, Chairman and Trustee of Federated Investors,
      Mr. Donahue's wife, and Mr. Donahue's son, J.
      Christopher Donahue, who is President and Trustee of Federated Investors.

      Federated Advisers and other subsidiaries of Federated Investors serve as
      investment advisers to a number of investment companies and private
      accounts. Certain other subsidiaries also provide administrative services
      to a number of investment companies. With over $110 billion invested
      across over 300 funds under management and/or administration by its
      subsidiaries, as of December 31, 1996, Federated Investors is one of the
      largest mutual fund investment managers in the United States. With more
      than 2,000 employees, Federated continues to be led by the management who
      founded the company in 1955. Federated funds are presently at work in and
      through 4,500 financial institutions nationwide.

Both the Company and the adviser have adopted strict codes of ethics governing
the conduct of all employees who manage the Fund and its portfolio securities.
These codes recognize that such persons owe a fiduciary duty to the Fund's
shareholders and must place the interests of shareholders ahead of the
employees' own interests. Among other things, the codes: require preclearance
and periodic reporting of personal securities transactions; prohibit personal
transactions in securities being purchased or sold, or being considered for
purchase or sale, by the Fund; prohibit purchasing securities in initial public
offerings; and prohibit taking profits on securities held for less than sixty
days. Violations of the codes are subject to review by the Directors, and could
result in severe penalties.

Distribution of Shares

Federated Securities Corp. is the principal  distributor for shares of the Fund.
It is a  Pennsylvania  corporation  organized on November  14, 1969,  and is the
principal distributor for a number of investment companies. Federated Securities
Corp. is a subsidiary of Federated Investors.

   Distribution Plan and Shareholder Services

Under a distribution plan adopted in accordance with Rule 12b-1 under the
Investment Company Act of 1940 (the "Plan"), the distributor may select
financial institutions such as banks, fiduciaries, custodians for public funds,
investment advisers and broker/dealers to provide distribution and/or
administrative services as agents for their clients or customers. These services
may include, but are not limited to the following functions: providing office
space, equipment, telephone facilities, and various personnel including
clerical, supervisory, and computer as necessary or beneficial to establish and
maintain shareholder accounts and records; processing purchase and redemption
transactions and automatic investments of client account cash balances;
answering routine client inquiries regarding the Fund; assisting clients in
changing dividend options, account designations, and addresses; and providing
such other services as the Fund reasonably requests.

The distributor will pay financial institutions a fee based upon shares subject
to the Plan and owned by their clients or customers. The schedules of such fees
and the basis upon which such fees will be paid will be determined from time to
time by the Directors of the Fund provided that for any period the total amount
of these fees shall not exceed an annual rate of 0.35% of the average net asset
value of shares subject to the Plan held during the period by clients or
customers of financial institutions. The current annual rate of such fees is
0.35%. Any fees paid by the distributor under the Plan, will be reimbursed from
the assets of the Fund.

In addition, the Fund has entered into a Shareholder Services Agreement with
Federated Shareholder Services, a subsidiary of Federated Investors, under which
the Fund may make payments up to 0.25% of the average daily net asset value of
its shares to obtain certain personal services for shareholders and to maintain
shareholder accounts. Under the Shareholder Services Agreement, Federated
Shareholder Services will either perform shareholder services directly or will
select financial institutions to perform shareholder services. Financial
institutions will receive fees based upon shares owned by their clients or
customers. The schedules of such fees and the basis upon which such fees will be
paid will be determined from time to time by the Fund and Federated Shareholder
Services.

   Supplemental Payments to Financial Institutions

In addition to payments made pursuant to the Distribution Plan and Shareholder
Services Agreement, Federated Securities Corp. and Federated Shareholder
Services, from their own assets, may pay financial institutions supplemental
fees for the performance of substantial sales services, distribution-related
support services, or shareholder services. The support may include sponsoring
sales, educational and training seminars for their employees, providing sales
literature, and engineering computer software programs that emphasize the
attributes of the Fund. Such assistance will be predicated upon the amount of
shares the financial institution sells or may sell, and/or upon the type and
nature of sales or marketing support furnished by the financial institution. Any
payments made by the distributor may be reimbursed by the Fund's investment
adviser or its affiliates.

Administration of the Fund

   Administrative Services

Federated Services Company, a subsidiary of Federated Investors, provides
administrative personnel and services (including certain legal and financial
reporting services) necessary to operate the Fund at an annual rate which
relates to the average aggregate daily net assets of all funds advised by
affiliates of Federated Investors specified below:


MAXIMUM  AVERAGE AGGREGATE
  FEE     DAILY NET ASSETS

 0.150%on the first $250 million 0.125%on the next $250 million 0.100%on the
 next $250 million
 0.075%on assets in excess of $750 million

The administrative fee received during any fiscal year shall be at least
$125,000 per portfolio and $30,000 per each additional class of shares.
Federated Services Company may choose voluntarily to waive a portion of its fee.


                                                                           

The Fund attempts to stabilize the net asset value of its shares at $1.00 by
valuing the portfolio securities using the amortized cost method. The net asset
value per share is determined by subtracting total liabilities from total assets
and dividing the remainder by the number of shares outstanding. The Fund cannot
guarantee that its net asset value will always remain at $1.00 per share.

The net asset value is determined at 12:00 noon, 3:00 p.m. (Eastern time), and
as of the close of trading (normally 4:00 p.m., Eastern time) on the New York
Stock Exchange, Monday through Friday, except on New Year's Day, Martin Luther
King Day, Presidents' Day, Good Friday, Memorial Day, Independence Day, Labor
Day, Thanksgiving Day, and Christmas Day.


                                                                     

Shares are sold at their net asset value, without a sales charge, next
determined after an order is received, on days which the New York Stock Exchange
is open for business. Shares may be purchased as described below, either through
a financial institution (such as a bank or broker/dealer) or by wire or by check
directly from the Fund, with a minimum initial investment of $10,000 or more or
additional investments of as little as $500. The minimum initial investment and
subsequent investment for retirement plans are only $1,000 and $500,
respectively. Financial institutions may impose different minimum investment
requirements on their customers.

In connection with any sale, Federated Securities Corp. may from time to time
offer certain items of nominal value to any shareholder or investor. The Fund
reserves the right to reject any purchase request. An account must be
established at a financial institution or by completing, signing, and returning
the new account form available from the Fund before shares can be purchased.

Purchasing Shares Through a
Financial Institution

Investors may purchase shares through a financial institution which has a sales
agreement with the distributor. Orders are considered received when the Fund
receives payment by wire or converts payment by check from the financial
institution into federal funds. It is the financial institution's responsibility
to transmit orders promptly. Financial institutions may charge additional fees
for their services.

Purchasing Shares by Wire

Shares may be purchased by wire by calling the Fund before 3:00 p.m. (Eastern
time) to place an order. The order is considered received immediately. Payment
by federal funds must be received before 3:00 p.m. (Eastern time) in order to
begin earning dividends that same day. Federal funds should be wired as follows:
Federated Shareholder Services Company, c/o State Street Bank and Trust Company,
Boston, MA; Attention: EDGEWIRE; For Credit to: Prime Cash Series; Fund Number
(this number can be found on the account statement or by contacting the Fund);
Group Number or Order Number; Nominee or Institution Name; and ABA Number
011000028. Shares cannot be purchased by wire on holidays when wire transfers
are restricted. Questions on wire purchases should be directed to your
shareholder services representative at the telephone number listed on your
account statement.

Purchasing Shares by Check

Shares may be purchased by sending a check to Federated Shareholder Services
Company, P.O. Box 8600, Boston, MA 02266-8600. The check should be made payable
to Prime Cash Series. Please include an account number on the check. Orders by
mail are considered received when payment by check is converted into federal
funds (normally the business day after the check is received), and shares begin
earning dividends the next day.

Special Purchase Features

   Systematic Investment Program

A minimum of $500 can be automatically withdrawn periodically from the
shareholder's checking account at an Automated Clearing House ("ACH") member and
invested in Fund shares. Shareholders should contact their financial institution
or the Fund to participate in this program.


                                                                             

Shares are redeemed at their net asset value next determined after Federated
Shareholder Services Company receives the redemption request. Redemptions will
be made on days on which the Fund computes its net asset value. Redemption
requests must be received in proper form and can be made as described below.





Redeeming Shares Through a
Financial Institution

Shares may be redeemed by contacting the shareholder's financial institution.
Shares will be redeemed at the net asset value next determined after Federated
Shareholder Services Company receives the redemption request. According to the
shareholder's instructions, redemption proceeds can be sent to the financial
institution or to the shareholder by check or by wire. The financial institution
is responsible for promptly submitting redemption requests and providing proper
written redemption instructions. Customary fees and commissions may be charged
by the financial institution for this service.

Redeeming Shares by Telephone

Redemptions in any amount may be made by calling the Fund provided the Fund has
a properly completed authorization form. These forms can be obtained from
Federated Securities Corp. Proceeds from redemption requests before 3:00 p.m.
(Eastern time) will be wired the same day to the shareholder's account at a
domestic commercial bank which is a member of the Federal Reserve System, but
will not include that day's dividend. Proceeds from redemption requests received
after that time include that day's dividend but will be wired the following
business day. Under limited circumstances, arrangements may be made with the
distributor for same-day payment of proceeds, without that day's dividend, for
redemption requests received before 2:00 p.m. (Eastern time). Proceeds from
redeemed shares purchased by check or through ACH will not be wired until that
method of payment has cleared. Proceeds from redemption requests on holidays
when wire transfers are restricted will be wired the following business day.
Questions about telephone redemptions on days when wire transfers are restricted
should be directed to your shareholder services representative at the telephone
number listed on your account statement.

Telephone instructions may be recorded and if reasonable procedures are not
followed by the Fund, it may be liable for losses due to unauthorized or
fraudulent telephone instructions.

In the event of drastic economic or market changes, a shareholder may experience
difficulty in redeeming by telephone. If this occurs, "Redeeming Shares by Mail"
should be considered. If at any time the Fund shall determine it necessary to
terminate or modify the telephone redemption privilege, shareholders would be
promptly notified.

Redeeming Shares by Mail

Shares may be redeemed in any amount by mailing a written request to: Federated
Shareholder Services Company, P.O. Box 8600, Boston, MA 02266-8600. If share
certificates have been issued, they should be sent unendorsed with the written
request by registered or certified mail to the address noted above.

The written request should state: the Fund name; the account name as registered
with the Fund; the account number; and the number of shares to be redeemed or
the dollar amount requested. All owners of the account must sign the request
exactly as the shares are registered. Normally, a check for the proceeds is
mailed within one business day, but in no event more than seven days, after the
receipt of a proper written redemption request. Dividends are paid up to and
including the day that a redemption request is processed.

Shareholders requesting a redemption of any amount to be sent to an address
other than that on record with the Fund or a redemption payable other than to
the shareholder of record must have their signatures guaranteed by a commercial
or savings bank, trust company or savings association whose deposits are insured
by an organization which is administered by the Federal Deposit Insurance
Corporation; a member firm of a domestic stock exchange; or any other "eligible
guarantor institution," as defined in the Securities Exchange Act of 1934. The
Fund does not accept signatures guaranteed by a notary public.

Special Redemption Features

   Check Writing

Upon request, a checking account will be established to allow shareholders to
redeem their Fund shares. Shareholder accounts will continue to receive the
daily dividend declared on the shares to be redeemed until the check is
presented to UMB Bank, N.A., the bank responsible for administering the check
writing program, for payment. However, checks should never be made payable or
sent to UMB Bank, N.A. or the Fund to redeem shares, and a check may not be
written to close an account.

   Debit Card

Upon request, a debit account will be established. This account allows
shareholders to redeem shares by using a debit card. A fee will be charged to
the account for this service.

   Systematic Withdrawal Program

If a shareholder's account has a value of at least $10,000, other than
retirement accounts subject to required minimum distributions, a systematic
withdrawal program may be established whereby automatic redemptions are made
from the account and transferred electronically to any commercial bank, savings
bank, or credit union that is an ACH member. Shareholders may apply for
participation in this program through their financial institutions or the Fund.


                                                                 

Dividends

Dividends are declared daily and paid monthly. Dividends are automatically
reinvested on payment dates in additional shares of the Fund unless cash
payments are requested by writing to the Fund. Shares purchased by wire before
3:00 p.m. (Eastern time) begin earning dividends that day. Shares purchased by
check begin earning dividends the day after the check is converted into federal
funds.

Capital Gains

The Fund does not expect to realize any capital gains or losses. If capital
gains or losses were to occur, they could result in an increase or decrease in
dividends. The Fund will distribute in cash or additional shares any realized
net long-term capital gains at least once every 12 months.

Confirmations and Account Statements

Shareholders will receive detailed confirmations of transactions (except for
systematic program transactions). In addition, shareholders will receive
periodic statements reporting all account activity, including dividends paid.
The Fund will not issue share certificates.

Accounts with Low Balances

Due to the high cost of maintaining accounts with low balances, the Fund may
redeem shares in any account, except accounts maintained by retirement plans,
and pay the proceeds to the shareholder if the account balance falls below a
required minimum value of $10,000 due to shareholder redemptions. Before shares
are redeemed to close an account, the shareholder is notified in writing and
allowed 30 days to purchase additional shares to meet the minimum requirement.

Voting Rights

Each share of the Company owned by a shareholder gives that shareholder one vote
in Director elections and other matters submitted to shareholders for vote. All
shares of each portfolio in the Company have equal voting rights, except that in
matters affecting only a particular portfolio, only shareholders of that
portfolio are entitled to vote. The Company is not required to hold annual
shareholder meetings. Shareholder approval will be sought only for certain
changes in the Company's or the Fund's operation and for election of Directors
under certain circumstances.

Directors may be removed by the Directors or by shareholders at a special
meeting. A special meeting shall be called by the Directors upon the written
request of shareholders owning at least 10% of the outstanding shares of the
Company.


                                                                        

Federal Income Tax

The Fund will pay no federal income tax because it expects to meet requirements
of the Internal Revenue Code applicable to regulated investment companies and to
receive the special tax treatment afforded to such companies. The Fund will be
treated as a single, separate entity for federal income tax purposes so that
income (including capital gains) and losses realized by the Company's other
portfolios will not be combined for tax purposes with those realized by the
Fund.

Unless otherwise exempt, shareholders are required to pay federal income tax on
any dividends and other distributions received. This applies whether dividends
and distributions are received in cash or as additional shares.

State and Local Taxes

Company shares are exempt from personal property taxes imposed by counties,
municipalities, and school districts in Pennsylvania.

Shareholders are urged to consult their own tax advisers regarding the status of
their accounts under state and local tax laws.


                                                                              

From time to time, the Fund advertises its yield, effective yield and total
return.

Yield represents the annualized rate of income earned on an investment over a
seven-day period. It is the annualized dividends earned during the period on an
investment shown as a percentage of the investment. The effective yield is
calculated similarly to the yield, but when annualized, the income earned by an
investment is assumed to be reinvested daily. The effective yield will be
slightly higher than the yield because of the compounding effect of this assumed
reinvestment.

Total return represents the change, over a specified period of time, in the
value of an investment in the Fund after reinvesting all income distributions.
It is calculated by dividing that change by the initial investment and is
expressed as a percentage.

From time to time, advertisements for the Fund may refer to ratings, rankings,
and other information in certain financial publications and/or compare the
Fund's performance to certain indices.



<PAGE>


Prime Cash Series

(A Portfolio of Cash Trust Series,Inc.)
Prospectus
   September 30, 1998    

An Open-End Management Investment Company


Prime Cash Series
Federated Investors Tower
Pittsburgh, PA 15222-3779

Distributor
Federated Securities Corp.
Federated Investors Tower
Pittsburgh, PA 15222-3779

Investment Adviser
Federated Advisers
Federated Investors Tower
Pittsburgh, PA 15222-3779

Custodian
State Street Bank
and Trust Company
P.O. Box 8600
Boston, MA 02266-8600

Transfer Agent
and Dividend
Disbursing Agent
Federated Shareholder
Services Company
P.O. Box 8600
Boston, MA 02266-8600

Independent Public Accountants
Deloitte & Touche LLP
2500 One PPG Place
Pittsburgh, PA 15222
Federated Securities Corp., Distributor

Cusip 147551105
   9080101A (9/98)    



Prime Cash Series

(A Portfolio of Cash Trust Series, Inc.)



                       Statement of Additional Information











   This Statement of Additional Information should be read with the prospectus
of Prime Cash Series (the "Fund"), a portfolio of Cash Trust Series, Inc. (the
"Company") dated September 30, 1998. This Statement is not a prospectus. You may
request a copy of a prospectus or a paper copy of this Statement, if you have
received it electronically, free of charge by calling 1-800-341-7400.    

Federated Investors Tower
Pittsburgh, PA 15222-3779
                       Statement dated September 30, 1998    

Cusip 147551105
   9080101B (9/98)    



<PAGE>






                                                                          




<PAGE>



                                                                           

Unless indicated otherwise, the policies described below may be changed by the
Board of Directors (the "Directors") without shareholder approval. Shareholders
will be notified before any material change in these policies becomes effective.

Acceptable Investments

When determining whether a security presents minimal credit risks, the
investment adviser will consider the creditworthiness of: the issuer of the
security; the issuer of any demand feature applicable to the security; or any
guarantor of either the security or any demand feature.

U.S. Government Securities

The types of U.S.  government  securities in which the Fund may invest generally
include direct  obligations of the U.S.  Treasury (such as U.S.  Treasury bills,
notes,  and bonds)  and  obligations  issued or  guaranteed  by U.S.  government
agencies or instrumentalities. These securities are backed by:

o  the full faith and credit of the U.S. Treasury;

o  the issuer's right to borrow from the U.S. Treasury;

o  the discretionary authority of the U.S. government to purchase certain 
   obligations of agencies or instrumentalities; or

o  the credit of the agency or instrumentality issuing the obligations.

Bank Instruments

The instruments of banks and savings associations whose deposits are insured by
the Bank Insurance Fund or the Savings Association Insurance Fund, such as
certificates of deposit, demand and time deposits, savings shares, and bankers'
acceptances, are not necessarily guaranteed by those organizations. In addition
to domestic bank instruments, the Fund may invest in: Eurodollar Certificates of
Deposit issued by foreign branches of U.S. or foreign banks; Eurodollar Time
Deposits, which are U.S. dollar-denominated deposits in foreign branches of U.S.
or foreign banks; Canadian Time Deposits, which are U.S. dollar-denominated
deposits issued by branches of major Canadian banks located in the United
States; and Yankee Certificates of Deposit, which are U.S. dollar-denominated
certificates of deposit issued by U.S. branches of foreign banks and held in the
United States.

Ratings

A nationally recognized statistical rating organization's ("NRSRO") two highest
rating categories are determined without regard for sub-categories and
gradations. For example, securities rated A-1+, A-1, or A-2 by Standard & Poor's
Ratings Group ("S&P"), Prime-1 or Prime-2 by Moody's Investors Service, Inc.
("Moody's"), or F-1 (+ or -) or F-2 (+ or -) by Fitch Investors Service, Inc.
("Fitch") are all considered rated in one of the two highest short-term rating
categories. The Fund will limit its investments in securities rated in the
second highest short-term rating category e.g., A-2 by S&P, Prime-2 by Moody's,
or F-2 (+ or -) by Fitch, to not more than 5% of its total assets, with not more
than 1% invested in the securities of any one issuer. The Fund will follow
applicable regulations in determining whether a security rated by more than one
NRSRO can be treated as being in one of the two highest short-term rating
categories; currently, such securities must be rated by two NRSROs in one of
their two highest rating categories. See "Regulatory Compliance." An NRSRO's
highest rating category is determined without regard for sub-categories and
gradations. For example, securities rated A-1 or A-1+ by Standard & Poor's
Ratings Group ("S&P"), Prime-1 by Moody's Investors Service, Inc. ("Moody's"),
or F-1 (+ or -) by Fitch Investors Service, Inc. ("Fitch") are all considered
rated in the highest short-term rating category. The Fund will follow applicable
regulations in determining whether a security rated by more than one NRSRO can
be treated as being in the highest short-term rating category; currently, such
securities must be rated by two NRSROs in their highest rating category. See
"Regulatory Compliance."

When-Issued and Delayed Delivery Transactions

These transactions are made to secure what is considered to be an advantageous
price or yield for the Fund. No fees or other expenses, other than normal
transaction costs, are incurred. However, liquid assets of the Fund in a dollar
amount sufficient to make payment for the securities to be purchased are:
segregated on the Fund's records at the trade date; marked to market daily; and
maintained until the transaction is settled. The Fund does not intend to engage
in when-issued and delayed delivery transactions to an extent that would cause
the segregation of more than 20% of the total value of its assets.

Repurchase Agreements

The Fund believes that under the regular procedures normally in effect for
custody of the Fund's portfolio securities subject to repurchase agreements, a
court of competent jurisdiction would rule in favor of the Fund and allow
retention or disposition of such securities. The Fund will only enter into
repurchase agreements with banks and other recognized financial institutions,
such as broker/dealers, which are deemed by the Fund's adviser to be
creditworthy pursuant to guidelines established by the Directors.

Restricted and Illiquid Securities

The Fund may invest in commercial paper issued in reliance on the exemption from
registration afforded by Section 4(2) of the Securities Act of 1933. Section
4(2) commercial paper is restricted as to disposition under federal securities
law, and is generally sold to institutional investors, such as the Fund, who
agree that they are purchasing the paper for investment purposes and not with a
view to public distribution. Any resale by the purchaser must be in an exempt
transaction. Section 4(2) commercial paper is normally resold to other
institutional investors like the Fund through or with the assistance of the
issuer or investment dealers who make a market in Section 4(2) commercial paper,
thus providing liquidity. The Fund believes that Section 4(2) commercial paper
and possibly certain other restricted securities which meet the criteria for
liquidity established by the Directors of the Fund are quite liquid. The Fund
intends, therefore, to treat the restricted securities which meet the criteria
for liquidity established by the Directors, including Section 4(2) commercial
paper, as determined by the Fund's investment adviser, as liquid and not subject
to the investment limitation applicable to illiquid securities.

   Investing in Securities of Other Investment Companies

The Fund may invest in the securities of affiliated money market funds as an
efficient means of managing the Fund's uninvested cash.    

Reverse Repurchase Agreements

The Fund may also enter into reverse repurchase agreements. These transactions
are similar to borrowing cash. In a reverse repurchase agreement, the Fund
transfers possession of a portfolio instrument in return for a percentage of the
instrument's market value in cash and agrees that on a stipulated date in the
future the Fund will repurchase the portfolio instrument by remitting the
original consideration plus interest at an agreed upon rate. The use of reverse
repurchase agreements may enable the Fund to avoid selling portfolio instruments
at a time when a sale may be deemed to be disadvantageous, but does not ensure
this result. However, liquid assets of the Fund, in a dollar amount sufficient
to make payment for the securities to be purchased, are: segregated on the
Fund's records at the trade date; marked to market daily; and maintained until
the transaction is settled.

Credit Enhancement

The Fund typically evaluates the credit quality and ratings of credit-enhanced
securities based upon the financial condition and ratings of the party providing
the credit enhancement (the "credit enhancer"), rather than the issuer.

Lending of Portfolio Securities

The collateral received when the Fund lends portfolio securities must be valued
daily and, should the market value of the loaned securities increase, the
borrower must furnish additional collateral to the Fund. During the time
portfolio securities are on loan, the borrower pays the Fund any dividends or
interest paid on such securities. Loans are subject to termination at the option
of the Fund or the borrower. The Fund may pay reasonable administrative and
custodial fees in connection with a loan and may pay a negotiated portion of the
interest earned on the cash or equivalent collateral to the borrower or placing
broker.


                                                                             

Selling Short and Buying on Margin

The Fund will not sell any securities short or purchase any securities on margin
but may obtain such short-term credits as are necessary for clearance of
transactions.

Issuing Senior Securities and Borrowing Money

The Fund will not issue senior securities except that the Fund may borrow money
directly or through reverse repurchase agreements in amounts up to one-third of
the value of its total assets, including the amounts borrowed.

The Fund will not borrow money or engage in reverse repurchase agreements for
investment leverage, but rather as a temporary, extraordinary, or emergency
measure or to facilitate management of the portfolio by enabling the Fund to
meet redemption requests when the liquidation of portfolio securities is deemed
to be inconvenient or disadvantageous. The Fund will not purchase any securities
while borrowings in excess of 5% of the value of its total assets are
outstanding. During the period any reverse repurchase agreements are
outstanding, the Fund will restrict the purchase of the portfolio securities to
money market instruments maturing on or before the expiration date of the
reverse repurchase agreements, but only to the extent necessary to assure
completion of the reverse repurchase agreements.

Pledging Assets

The Fund will not mortgage, pledge, or hypothecate any assets except as
necessary to secure permitted borrowings. In these cases, it may pledge assets
having market value not exceeding the lesser of the dollar or 10% of the value
of total assets at the time of the pledge.

Lending Cash or Securities

The Fund will not lend any assets, except portfolio securities. This shall not
prevent the Fund from purchasing or holding money market instruments, including
reverse repurchase agreements and variable amount demand notes, permitted by its
investment objective, policies, limitations, or Articles of Incorporation.

Investing in Commodities

The Fund will not purchase or sell commodities, commodity contracts, or
commodity futures contracts.

Investing in Real Estate

The Fund will not purchase or sell real estate, although it may invest in
securities of issuers whose business involves the purchase or sale of real
estate or in securities which are secured by real estate or interests in real
estate.

Underwriting

The Fund will not underwrite any issue of securities, except as it may be deemed
to be an underwriter under the Securities Act of 1933 in connection with the
sale of securities in accordance with its investment objective, policies, and
limitations.

Concentration of Investments

   The Fund will not invest 25% or more of its total assets in any one industry.
However,  investing in U.S. government  securities and domestic bank instruments
shall not be considered investments in any one industry.     

The above limitations cannot be changed without shareholder approval. The
following limitations, however, may be changed by the Directors without
shareholder approval. Shareholders will be notified before any material change
in these limitations becomes effective.

   Investing in Restricted and Illiquid Securities    

The Fund will not invest more than 10% of the value of its net assets in
illiquid securities.

Investing for Control

The Fund will not invest in securities of a company for the purpose of
exercising control or management.

Investing in Options

The Fund will not invest in puts, calls, straddles, spreads, or any combination
of them.

For purposes of the above limitations, the Fund considers certificates of
deposit and demand and time deposits issued by a U.S. branch of a domestic bank
or savings association having capital, surplus, and undivided profits in excess
of $100,000,000 at the time of investment to be "cash items." Except with
respect to borrowing money, if a percentage limitation is adhered to at the time
of investment, a later increase or decrease in percentage resulting from any
change in value or net assets will not result in a violation of such limitation.

The Fund did not borrow money or pledge  securities in excess of 5% of the value
of its net assets during the last fiscal year and has no present intent to do so
during the coming fiscal year.

Regulatory Compliance

The Fund may follow non-fundamental operational policies that are more
restrictive than its fundamental investment limitations, as set forth in the
prospectus and this Statement of Additional Information, in order to comply with
applicable laws and regulations, including the provisions of and regulations
under the Investment Company Act of 1940. In particular, the Fund will comply
with the various requirements of Rule 2a-7, which regulates money market mutual
funds. For example, with limited exceptions, Rule 2a-7 prohibits the investment
of more than 5% of the Fund's total assets in the securities of any one issuer,
although the Fund's investment limitation only requires such 5% diversification
with respect to 75% of its assets. The Fund will invest more than 5% of its
assets in any one issuer only under the circumstances permitted by Rule 2a-7.
The Fund will also determine the effective maturity of its investments, as well
as its ability to consider a security as having received the requisite
short-term ratings by NRSROs, according to Rule 2a-7. The Fund may change these
operational policies to reflect changes in the laws and regulations without the
approval of its shareholders.


                                                                         

Officers and Directors are listed with their addresses, birthdates, present
positions with Cash Trust Series, Inc., and principal occupations.


John F. Donahue@*
Federated Investors Tower
Pittsburgh, PA

Birthdate: July 28, 1924

Chairman and Director

Chairman  and  Trustee,  Federated  Investors,   Federated  Advisers,  Federated
Management,  and Federated Research;  Chairman and Director,  Federated Research
Corp. and Federated Global Research Corp.;  Chairman,  Passport Research,  Ltd.;
Chief Executive Officer and Director or Trustee of the Funds. Mr. Donahue is the
father of J. Christopher  Donahue,  Executive Vice President and Director of the
Company.



Thomas G. Bigley
15 Old Timber Trail
Pittsburgh, PA

Birthdate: February 3, 1934

Director

Chairman of the Board, Children's Hospital of Pittsburgh; formerly, Senior
Partner, Ernst & Young LLP; Director, MED 3000 Group, Inc.; Director, Member of
Executive Committee, University of Pittsburgh; Director or Trustee of the Funds.



John T. Conroy, Jr.
Wood/IPC Commercial Department
John R. Wood and Associates, Inc., Realtors
3255 Tamiami Trail North
Naples, FL

Birthdate: June 23, 1937

Director

President,  Investment Properties  Corporation;  Senior Vice-President,  John R.
Wood and Associates,  Inc., Realtors;  Partner or Trustee in private real estate
ventures in Southwest Florida; formerly,  President, Naples Property Management,
Inc. and Northgate Village Development  Corporation;  Director or Trustee of the
Funds.




<PAGE>




William J. Copeland
One PNC Plaza--23rd Floor
Pittsburgh, PA

Birthdate: July 4, 1918

Director

Director and Member of the Executive Committee, Michael Baker, Inc.; formerly,
Vice Chairman and Director, PNC Bank, N.A., and PNC Bank Corp.; Director, Ryan
Homes, Inc.; Director or Trustee of the Funds.



J. Christopher Donahue*
Federated Investors Tower
Pittsburgh, PA

Birthdate: April 11, 1949

Executive Vice President and Director

President and Trustee, Federated Investors, Federated Advisers, Federated
Management, and Federated Research; President and Director, Federated Research
Corp. and Federated Global Research Corp.; President, Passport Research, Ltd.;
Trustee, Federated Shareholder Services Company, and Federated Shareholder
Services; Director, Federated Services Company; President or Executive Vice
President of the Funds; Director or Trustee of some of the Funds. Mr. Donahue is
the son of John F. Donahue, Chairman and Director of the Company.



James E. Dowd
571 Hayward Mill Road
Concord, MA

Birthdate: May 18, 1922

Director

Attorney-at-law;  Director, The Emerging Germany Fund, Inc.; Director or Trustee
of the Funds.




<PAGE>




Lawrence D. Ellis, M.D.*
3471 Fifth Avenue, Suite 1111
Pittsburgh, PA

Birthdate: October 11, 1932

Director

Professor of Medicine, University of Pittsburgh; Medical Director, University of
Pittsburgh Medical Center--Downtown; Member, Board of Directors, University of
Pittsburgh Medical Center; formerly, Hematologist, Oncologist, and Internist,
Presbyterian and Montefiore Hospitals; Director or Trustee of the Funds.



Edward L. Flaherty, Jr.@
Miller, Ament, Henny & Kochuba
205 Ross Street
Pittsburgh, PA

Birthdate: June 18, 1924

Director

Attorney of Counsel, Miller, Ament, Henny & Kochuba; Director, Eat'N Park
Restaurants, Inc.; formerly, Counsel, Horizon Financial, F.A., Western Region;
Director or Trustee of the Funds.



Peter E. Madden
One Royal Palm Way
100 Royal Palm Way
Palm Beach, FL

Birthdate: March 16, 1942

Director

Consultant; Former State Representative, Commonwealth of Massachusetts;
formerly, President, State Street Bank and Trust Company and State Street Boston
Corporation; Director or Trustee of the Funds.



Gregor F. Meyer
203 Kensington Ct.
Pittsburgh, PA

Birthdate: October 6, 1926

Director

Chairman, Meritcare, Inc.; Director, Eat'N Park Restaurants, Inc.; Retired from
the law firm of Miller, Ament, Henny & Kochuba; Director or Trustee of the
Funds.




<PAGE>




John E. Murray, Jr., J.D., S.J.D.
President, Duquesne University
Pittsburgh, PA

Birthdate: December 20, 1932

Director

President, Law Professor, Duquesne University; Consulting Partner, Mollica &
Murray; Director or Trustee of the Funds.



Wesley W. Posvar
1202 Cathedral of Learning
University of Pittsburgh
Pittsburgh, PA

Birthdate: September 14, 1925

Director

Professor, International Politics; Management Consultant; Trustee, Carnegie
Endowment for International Peace, RAND Corporation, Online Computer Library
Center, Inc., National Defense University and U.S. Space Foundation; President
Emeritus, University of Pittsburgh; Founding Chairman, National Advisory Council
for Environmental Policy and Technology, Federal Emergency Management Advisory
Board and Czech Management Center, Prague; Director or Trustee of the Funds.



Marjorie P. Smuts
4905 Bayard Street
Pittsburgh, PA

Birthdate: June 21, 1935

Director

Public  Relations/Marketing/Conference  Planning;  Director  or  Trustee  of the
Funds.



Richard B. Fisher
Federated Investors Tower
Pittsburgh, PA

Birthdate: May 17, 1923

President

Executive Vice President and Trustee, Federated Investors; Chairman and
Director, Federated Securities Corp.; President or Vice President of some of the
Funds; Director or Trustee of some of the Funds.




<PAGE>




Edward C. Gonzales
Federated Investors Tower
Pittsburgh, PA

Birthdate: October 22, 1930

Executive Vice President

Vice Chairman, Treasurer, and Trustee, Federated Investors; Vice President,
Federated Advisers, Federated Management, Federated Research, Federated Research
Corp., Federated Global Research Corp. and Passport Research, Ltd.; Executive
Vice President and Director, Federated Securities Corp.; Trustee, Federated
Shareholder Services Company; Trustee or Director of some of the Funds;
President, Executive Vice President and Treasurer of some of the Funds.



John W. McGonigle
Federated Investors Tower
Pittsburgh, PA

Birthdate: October 26, 1938

Executive Vice President, Secretary, and Treasurer

Executive Vice President, Secretary, and Trustee, Federated Investors; Trustee,
Federated Advisers, Federated Management, and Federated Research; Director,
Federated Research Corp. and Federated Global Research Corp.; Trustee, Federated
Shareholder Services Company; Director, Federated Services Company; President
and Trustee, Federated Shareholder Services; Director, Federated Securities
Corp.; Executive Vice President and Secretary of the Funds; Treasurer of some of
the Funds.



* This Director is deemed to be an "interested person" as defined in the
Investment Company Act of 1940.

@  Member of the Executive Committee. The Executive Committee of the Board of
   Directors handles the responsibilities of the Board between meetings of the
   Board.

As referred to in the list of Directors and Officers, "Funds" includes the
following investment companies: 111 Corcoran Funds; Arrow Funds; Automated
Government Money Trust; Blanchard Funds; Blanchard Precious Metals Fund, Inc.;
Cash Trust Series II; Cash Trust Series, Inc.; DG Investor Series; Edward D.
Jones & Co. Daily Passport Cash Trust; Federated Adjustable Rate U.S. Government
Fund, Inc.; Federated American Leaders Fund, Inc.; Federated ARMs Fund;
Federated Equity Funds; Federated Equity Income Fund, Inc.; Federated Fund for
U.S. Government Securities, Inc.; Federated GNMA Trust; Federated Government
Income Securities, Inc.; Federated Government Trust; Federated High Income Bond
Fund, Inc.; Federated High Yield Trust; Federated Income Securities Trust;
Federated Income Trust; Federated Index Trust; Federated Institutional Trust;
Federated Insurance Series; Federated Investment Portfolios; Federated
Investment Trust; Federated Master Trust; Federated Municipal Opportunities
Fund, Inc.; Federated Municipal Securities Fund, Inc.; Federated Municipal
Trust; Federated Short-Term Municipal Trust; Federated Short-Term U.S.
Government Trust; Federated Stock and Bond Fund, Inc.; Federated Stock Trust;
Federated Tax-Free Trust; Federated Total Return Series, Inc.; Federated U.S.
Government Bond Fund; Federated U.S. Government Securities Fund: 1-3 Years;
Federated U.S. Government Securities Fund: 2-5 Years; Federated U.S. Government
Securities Fund: 5-10 Years; Federated Utility Fund, Inc.; First Priority Funds;
Fixed Income Securities, Inc.; High Yield Cash Trust; Intermediate Municipal
Trust; International Series, Inc.; Investment Series Funds, Inc.; Investment
Series Trust; Liberty Term Trust, Inc.--1999; Liberty U.S. Government Money
Market Trust; Liquid Cash Trust; Managed Series Trust; Money Market Management,
Inc.; Money Market Obligations Trust; Money Market Obligations Trust II; Money
Market Trust; Municipal Securities Income Trust; Newpoint Funds; RIMCO Monument
Funds; Targeted Duration Trust; Tax-Free Instruments Trust; The Planters Funds;
The Virtus Funds; Trust for Financial Institutions; Trust for Government Cash
Reserves; Trust for Short-Term U.S. Government Securities; Trust for U.S.
Treasury Obligations; Wesmark Funds; and World Investment Series, Inc.

Share Ownership

Officers and Directors as a group own less than 1% of the Fund.

As of September 5, 1997, the following shareholder(s) of record owned 5% or more
of the outstanding shares of the Fund: Primevest Financial Services, St. Cloud,
MN, owned approximately 271,158,333 shares (8.97%) and BHC Securities, Inc.,
Philadelphia, PA, owned approximately 285,625,632 shares (9.45%).



<PAGE>


Director Compensation

<TABLE>
<CAPTION>

<S>                             <C>                  <C>    

                            AGGREGATE
NAME,                     COMPENSATION
POSITION WITH                 FROM                TOTAL COMPENSATION PAID
FUND                         FUND*#                 FROM FUND COMPLEX

John F. Donahue             $0          $0 for the Fund and
Chairman and Director                   56 other investment companies in the Fund Complex
Thomas G. Bigley        $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
John T. Conroy, Jr.     $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
William J. Copeland     $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
J. Christopher Donahue      $0          $0 for the Fund and
Director                                18 other investment companies in the Fund Complex
James E. Dowd           $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
Lawrence D. Ellis       $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Edward L. Flaherty, Jr. $4,476.02       $119,615 for the Fund and
Director                                56 other investment companies in the Fund Complex
Peter E. Madden         $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Gregor F. Meyer         $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
John E. Murray, Jr.     $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Wesley W. Posvar        $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
Marjorie P. Smuts       $4,068.51       $108,725 for the Fund and
Director                                56 other investment companies in the Fund Complex
</TABLE>


* Information is furnished for the fiscal year ended May 31, 1997.

# The aggregate compensation is provided for the Company which is comprised of
four portfolios.

  The information is provided for the last calendar year.

Director Liability

The Articles of Incorporation provide that the Directors will not be liable for
errors of judgment or mistakes of fact or law. However, they are not protected
against any liability to which they would otherwise be subject by reason of
willful misfeasance, bad faith, gross negligence, or reckless disregard of the
duties involved in the conduct of their office.


                                                                              

Investment Adviser

The Fund's investment adviser is Federated Advisers. It is a subsidiary of
Federated Investors. All the voting securities of Federated Investors are owned
by a trust, the trustees of which are John F. Donahue, his wife and his son, J.
Christopher Donahue.

The adviser shall not be liable to the Company, the Fund, or any shareholder of
the Fund for any losses that may be sustained in the purchase, holding, or sale
of any security or for anything done or omitted by it, except acts or omissions
involving willful misfeasance, bad faith, gross negligence, or reckless
disregard of the duties imposed upon it by its contract with the Company.

Advisory Fees

For its advisory services, Federated Advisers receives an annual investment
advisory fee as described in the prospectus. For the fiscal years ended May 31,
1997, 1996, and 1995, the adviser earned $10,596,936, $6,691,023, and
$4,431,610, respectively, of which $4,185,437, $1,766,935, and $1,803,372,
respectively, were waived.


                                                                           

When selecting brokers and dealers to handle the purchase and sale of portfolio
instruments, the adviser looks for prompt execution of the order at a favorable
price. In working with dealers, the adviser will generally use those who are
recognized dealers in specific portfolio instruments, except when a better price
and execution of the order can be obtained elsewhere. The adviser makes
decisions on portfolio transactions and selects brokers and dealers subject to
guidelines established by the Directors. The adviser may select brokers and
dealers who offer brokerage and research services. These services may be
furnished directly to the Fund or to the adviser and may include: advice as to
the advisability of investing in securities; security analysis and reports;
economic studies; industry studies; receipt of quotations for portfolio
evaluations; and similar services. Research services provided by brokers and
dealers may be used by the adviser or its affiliates in advising the Fund and
other accounts. To the extent that receipt of these services may supplant
services for which the adviser or its affiliates might otherwise have paid, it
would tend to reduce their expenses. The adviser and its affiliates exercise
reasonable business judgment in selecting brokers who offer brokerage and
research services to execute securities transactions. They determine in good
faith that commissions charged by such persons are reasonable in relationship to
the value of the brokerage and research services provided. During the fiscal
years ended May 31, 1997, 1996, and 1995, the Fund paid no brokerage
commissions.

Although investment decisions for the Fund are made independently from those of
the other accounts managed by the adviser, investments of the type the Fund may
make may also be made by those other accounts. When the Fund and one or more
other accounts managed by the adviser are prepared to invest in, or desire to
dispose of, the same security, available investments or opportunities for sales
will be allocated in a manner believed by the adviser to be equitable to each.
In some cases, this procedure may adversely affect the price paid or received by
the Fund or the size of the position obtained or disposed of by the Fund. In
other cases, however, it is believed that coordination and the ability to
participate in volume transactions will be to the benefit of the Fund.


                                                                                

Fund Administration

Federated Services Company, a subsidiary of Federated Investors, provides
administrative personnel and services to the Fund for a fee as described in the
prospectus. From March 1, 1994, to March 1, 1996, Federated Administrative
Services, a subsidiary of Federated Investors, served as the Fund's
Administrator. For purposes of this Statement of Additional Information,
Federated Services Company and Federated Administrative Services may hereinafter
collectively be referred to as the "Administrators." For the fiscal years ended
May 31, 1997, 1996, and 1995, the Administrators earned $1,601,019, $1,012,314,
and $607,946, respectively.

Custodian and Portfolio Accountant

State Street Bank and Trust Company, Boston, Massachusetts, is custodian for the
securities and cash of the Fund. Federated Services Company, Pittsburgh,
Pennsylvania, provides certain accounting and recordkeeping services with
respect to the Fund's portfolio investments. The fee paid for this service is
based upon the level of the Fund's average net assets for the period plus
out-of-pocket expenses.

Transfer Agent

Federated Services Company, through its registered transfer agent, Federated
Shareholder Services Company, maintains all necessary shareholder records. For
its services, the transfer agent receives a fee based on the size, type and
number of accounts and transactions made by shareholders.

Independent Public Accountants

The independent public accountants for the Fund are Deloitte & Touche LLP,
Pittsburgh, Pennsylvania.

Distribution Plan and Shareholder Services

These arrangements permit the payment of fees to financial institutions, the
distributor, and Federated Shareholder Services, to stimulate distribution
activities and to cause services to be provided to shareholders by a
representative who has knowledge of the shareholder's particular circumstances
and goals. These activities and services may include but are not limited to
marketing efforts; providing office space, equipment, telephone facilities, and
various clerical, supervisory, computer, and other personnel as necessary or
beneficial to establish and maintain shareholder accounts and records;
processing purchase and redemption transactions and automatic investments of
client account cash balances; answering routine client inquiries; and assisting
clients in changing dividend options, account designations, and addresses.

By adopting the Plan, the Directors expect that the Fund will be able to achieve
a more predictable flow of cash for investment purposes and to meet redemptions.
This will facilitate more efficient portfolio management and assist the Fund in
seeking to achieve its investment objectives. By identifying potential investors
whose needs are served by the Fund's objectives, and properly servicing these
accounts, the Fund may be able to curb sharp fluctuations in rates of
redemptions and sales.

Other benefits, which may be realized under either arrangement, may include: (1)
providing personal services to shareholders; (2) investing shareholder assets
with a minimum of delay and administrative detail; (3) enhancing shareholder
recordkeeping systems; and (4) responding promptly to shareholders' requests and
inquiries concerning their accounts.

For the fiscal year ended May 31, 1997, payments in the amount of $2,119,387
were made pursuant to the Plan, all of which was paid to financial institutions.
In addition, for the fiscal year, the Fund paid shareholder service fees in the
amount of $5,298,468.


                                                                             

The Directors have decided that the best method for determining the value of
portfolio instruments is amortized cost. Under this method, portfolio
instruments are valued at the acquisition cost as adjusted for amortization of
premium or accumulation of discount rather than at current market value.
Accordingly, neither the amount of daily income nor the net asset value is
affected by any unrealized appreciation or depreciation of the portfolio. In
periods of declining interest rates, the indicated daily yield on shares of the
Fund computed by dividing the annualized daily income on the Fund's portfolio by
the net asset value computed as above may tend to be higher than a similar
computation made by using a method of valuation based upon market prices and
estimates. In periods of rising interest rates, the opposite may be true.

The Fund's use of the amortized cost method of valuing portfolio instruments
depends on its compliance with certain conditions in Rule 2a-7 (the "Rule")
promulgated by the Securities and Exchange Commission under the Investment
Company Act of 1940. Under the Rule, the Directors must establish procedures
reasonably designed to stabilize the net asset value per share, as computed for
purposes of distribution and redemption, at $1.00 per share, taking into account
current market conditions and the Fund's investment objective. The procedures
include monitoring the relationship between the amortized cost value per share
and the net asset value per share based upon available indications of market
value. The Directors will decide what, if any, steps should be taken if there is
a difference of more than 0.5 between the two values. The Directors will take
any steps they consider appropriate (such as redemption in kind or shortening
the average portfolio maturity) to minimize any material dilution or other
unfair results arising from differences between the two methods of determining
net asset value.


                                                                            

The Fund is obligated to redeem shares solely in cash up to $250,000 or 1% of
the Fund's net asset value, whichever is less, for any one shareholder within a
90-day period. Any redemption beyond this amount will also be in cash unless the
Directors determine that further payments should be in kind. In such cases, the
Fund will pay all or a portion of the remainder of the redemption in portfolio
instruments valued in the same way as the Fund determines net asset value. The
portfolio instruments will be selected in a manner that the Directors deem fair
and equitable. Redemption in kind is not as liquid as a cash redemption. If
redemption is made in kind, shareholders who sell these securities could receive
less than the redemption value and could incur certain transaction costs.


                                                                             

To qualify for the special tax treatment afforded to regulated investment
companies, the Fund must, among other requirements: derive at least 90% of its
gross income from dividends, interest, and gains from the sale of securities;
derive less than 30% of its gross income from the sale of securities held less
than three months; invest in securities within certain statutory limits; and
distribute to its shareholders at least 90% of its net income earned during the
year.


                                                                      

Performance depends upon such variables as: portfolio quality; average portfolio
maturity; type of instruments in which the portfolio is invested; changes in
interest rates; changes in expenses; and the relative amount of cash flow. To
the extent that financial institutions and broker/dealers charge fees in
connection with services provided in conjunction with an investment in shares of
the Fund, the performance will be reduced for those shareholders paying those
fees.

Yield

The yield is calculated based upon the seven days ending on the day of the
calculation, called the "base period." This yield is computed by: determining
the net change in the value of a hypothetical account with a balance of one
share at the beginning of the base period, with the net change excluding capital
changes but including the value of any additional shares purchased with
dividends earned from the original one share and all dividends declared on the
original and any purchased shares; dividing the net change in the account's
value by the value of the account at the beginning of the base period to
determine the base period return; and multiplying the base period return by
365/7.

The Fund's yield for the seven-day period ended May 31, 1997, was 4.70%.

Effective Yield

The effective  yield is calculated by compounding the  unannualized  base period
return by:  adding 1 to the base period  return;  raising the sum to the 365/7th
power; and subtracting 1 from the result.

The Fund's effective yield for the seven-day period ended May 31, 1997, was
4.81%.

Total Return

Average annual total return is the average compounded rate of return for a given
period that would equate a $1,000 initial investment to the ending redeemable
value of that investment. The ending redeemable value is computed by multiplying
the number of shares owned at the end of the period by the net asset value per
share at the end of the period. The number of shares owned at the end of the
period is based on the number of shares purchased at the beginning of the period
with $1,000, adjusted over the period by any additional shares, assuming the
monthly reinvestment of all dividends and distributions.

The Fund's average annual total returns for the one-year period and five- year
period ended May 31, 1997, and for the period from August 18, 1989 (date of
initial public investment) through May 31, 1997, were 4.64%, 3.84% and 4.76%,
respectively.

Performance Comparisons

Investors may use financial publications and/or indices to obtain a more
complete view of the Fund's performance. When comparing performance, investors
should consider all relevant factors such as the composition of any index used,
prevailing market conditions, portfolio compositions of other funds, and methods
used to value portfolio securities and compute offering price. The financial
publications and/or indices which the Fund uses in advertising may include:

  o Lipper Analytical Services, Inc., ranks funds in various fund categories
    based on total return, which assumes the reinvestment of all income
    dividends and capital gains distributions, if any.

  o IBC/Donoghue's Money Fund Report publishes annualized yields of money market
    funds weekly. Donoghue's Money Market Insight publication reports monthly
    and 12-month-to-date investment results for the same money funds.

  o Money, a monthly magazine, regularly ranks money market funds in various
categories based on the latest available seven-day effective yield.

Advertising and other promotional literature may include charts, graphs and
other illustrations using the Fund's returns, or returns in general, that
demonstrate basic investment concepts such as tax-deferred compounding,
dollar-cost averaging and systematic investment. In addition, the Fund can
compare its performance, or performance for the types of securities in which it
invests, to a variety of other investments, such as bank savings accounts,
certificates of deposit, and Treasury bills.

Economic and Market Information

Advertising and sales literature for the Fund may include discussions of
economic, financial and political developments and their effect on the
securities market. Such discussions may take the form of commentary on these
developments by portfolio managers and their views and analysis on how such
developments could affect the funds. In addition, advertising and sales
literature may quote statistics and give general information about the mutual
fund industry, including the growth of the industry, from sources such as the
Investment Company Institute.


                                                                             

Federated Investors is dedicated to meeting investor needs which is reflected in
its investment decision making--structured, straightforward, and consistent.
This has resulted in a history of competitive performance with a range of
competitive investment products that have gained the confidence of thousands of
clients and their customers.

The company's disciplined security selection process is firmly rooted in sound
methodologies backed by fundamental and technical research. Investment decisions
are made and executed by teams of portfolio managers, analysts, and traders
dedicated to specific market sectors. These traders handle trillions of dollars
in annual trading volume.

In the money market sector, Federated Investors gained prominence in the mutual
fund industry in 1974 with the creation of the first institutional money market
fund. Simultaneously, the company pioneered the use of the amortized cost method
of accounting for valuing shares of money market funds, a principal means used
by money managers today to value money market fund shares. Other innovations
include the first institutional tax-free money market fund. As of December 31,
1996, Federated Investors managed more than $50.3 billion in assets across 50
money market funds, including 18 government, 11 prime and 21 municipal with
assets approximating $28.0 billion, $12.8 billion and $9.5 billion,
respectively.

J. Thomas Madden, Executive Vice President, oversees Federated Investors' equity
and high-yield corporate bond management while William D. Dawson, Executive Vice
President, oversees Federated Investors' domestic fixed income management. Henry
A. Frantzen, Executive Vice President, oversees the management of Federated
Investors' international and global portfolios.

Mutual Fund Market

Thirty-seven percent of American households are pursuing their financial goals
through mutual funds. These investors, as well as businesses and institutions,
have entrusted over $3.5 trillion to the more than 6,000 funds available.*

Federated Investors, through its subsidiaries, distributes mutual funds for a
variety of investment applications. Specific markets include:

Institutional Clients

Federated Investors meets the needs of more than 4,000 institutional clients
nationwide by managing and servicing separate accounts and mutual funds for a
variety of applications, including defined benefit and defined contribution
programs, cash management, and asset/liability management. Institutional clients
include corporations, pension funds, tax-exempt entities,
foundations/endowments, insurance companies, and investment and financial
advisors. The marketing effort to these institutional clients is headed by John
B. Fisher, President, Institutional Sales Division.

Bank Marketing

Other institutional clients include close relationships with more than 1,600
banks and trust organizations. Virtually all of the trust divisions of the top
100 bank holding companies use Federated funds in their clients' portfolios. The
marketing effort to trust clients is headed by Timothy C. Pillion, Senior Vice
President, Bank Marketing & Sales.

Broker/Dealers and Bank Broker/Dealer Subsidiaries

Federated funds are available to consumers through major brokerage firms
nationwide--we have over 2,200 broker/dealer and bank broker/dealer
relationships across the country--supported by more wholesalers than any other
mutual fund distributor. Federated's service to financial professionals and
institutions has earned it high ratings in several surveys performed by DALBAR,
Inc. DALBAR is recognized as the industry benchmark for service quality
measurement. The marketing effort to these firms is headed by James F. Getz,
President, Federated Securities Corp.


                                                                              

The financial statements for Prime Cash Series for the fiscal year ended May 31,
1997, are incorporated herein by reference to the Annual Report to shareholders
of Prime Cash Series dated May 31, 1997.

* Source: Investment Company Institute





PART C.    OTHER INFORMATION.


Item 24.    Financial Statements and Exhibits:
            (a)   Financial Statements: Incorporated by reference to the Annual 
                  Reports to Shareholders of the Funds dated May 31, 1998 
                 (File Nos. 33-29838 and 811-5843).
            (b)   Exhibits:
                  (1) Conformed copy of Articles of Incorporation of the
                  Registrant (7); (2) Copy of By-Laws of the Registrant as a
                  Maryland corporation (9); (3) Not applicable; (4) Copy of
                  Specimen Certificate for Shares of Beneficial Interest of the
                  Registrant (2); (5) Conformed copy of Investment Advisory
                  Contract of the Registrant (7); (6) Conformed copy of
                  Administrative Support and Distributor's Contract of the
                  Registrant (3);
                        (i)    The Registrant hereby incorporates the conformed
                               copy of the specimen Mutual Funds Sales and
                               Service Agreement; Mutual Funds Service Agreement
                               and Plan Trustee/Mutual Funds Service Agreement
                               from Item 24(b)6 of the Cash Trust Series II
                               Registration Statement on Form N-1A, filed with
                               the Commission on July 24, 1995. (File Nos.
                               33-38550 and 811-6269);
                  (7)   Not applicable;
                  (8) Conformed copy of Custodian Contract of the Registrant
(9);
                  (9)   (i)    Conformed copy of Agreement for Fund Accounting 
                               Services, Administrative Services, Shareholder 
                               Recordkeeping Services, and Custody Services
                               Procurement (10);
                        (ii) The responses described in Item 24(b)6(i) are
                  hereby incorporated by reference; (10) Conformed copy of
                  Opinion and Consent of Counsel as to legality of shares being
                  registered (3);



2.   Response  is  incorporated  by  reference  to  Registrant's   Pre-Effective
     Amendment No. 1 on Form N-1A filed August 14, 1989 (File Nos.  33-29838 and
     811-5843).

3.   Response  is  incorporated  by  reference  to  Registrant's  Post-Effective
     Amendment No. 1 on Form N-1A filed December 6, 1989 (File Nos. 33-29838 and
     811-5843).

7.   Response  is  incorporated  by  reference  to  Registrant's  Post-Effective
     Amendment No. 9 on Form N-1A filed  September 23, 1993 (File Nos.  33-29838
     and 811-5843).

9.   Response  is  incorporated  by  reference  to  Registrant's  Post-Effective
     Amendment  No.  13  filed  September  27,  1995  (File  Nos.  33-29838  and
     811-5843).

10.  Response  is  incorporated  by  reference  to  Registrant's  Post-Effective
     Amendment  No.  14  filed  September  25,  1996  (File  Nos.  33-29838  and
     811-5843).


<PAGE>


          (11)  Conformed copy of Consent of the Independent Auditors; (11)
          (12)  Not applicable;
          (13)  Conformed copy of Initial Capital Understanding (2);
          (14)  Not applicable;
          (15)  The responses described in Item 24(b) are hereby
                incorporated by reference;
          (16)  Copy of Schedule for Computation of Fund Performance Data (4);
          (17)  Copy of Financial Data Schedules; +
          (18)  Not applicable;
          (19) Conformed copy of Power of Attorney; (11)


Item 25.    Persons Controlled by or Under Common Control with Registrant:

            None


Item 26.    Number of Holders of Securities:

                                                Number of Record Holders
            Title of Class                      _as of_September 5, 1997__
            Shares of Capital Stock

            Municipal Cash Series                          11,515
            Prime Cash Series                             340,870
            Treasury Cash Series                           10,864
            Government Cash Series                         17,980


Item 27.    Indemnification:  (1)



+ Exhibits have been filed electronically.

1.   Response is incorporated by reference to Registrant's  Initial Registration
     Statement  on Form  N-1A  filed  July 13,  1989  (File  Nos.  33-29838  and
     811-5843).

2.   Response  is  incorporated  by  reference  to  Registrant's   Pre-Effective
     Amendment No. 1 on Form N-1A filed August 14, 1989 (File Nos.  33-29838 and
     811-5843).

4.   Response  is  incorporated  by  reference  to  Registrant's  Post-Effective
     Amendment  No. 3 on Form N-1A filed July 23, 1990 (File Nos.  33-29838  and
     811-5843).

11.  Response  is  incorporated  by  reference  to  Registrant's  Post-Effective
     Amendment No. 16 on Form N-1A filed September 24, 1997 (File Nos.  33-29838
     and 811-5843).


<PAGE>


Item 28. Business and Other Connections of Investment Adviser:

(a)      For a description of the other business of the investment adviser, see
         the section entitled "Fund Information -- Management of the Fund" in
         Part A. The affiliations with the Registrant of four of the Trustees
         and one of the Officers of the investment adviser are included in Part
         B of this Registration Statement under "Cash Trust Series, Inc.
         Management." The remaining Trustee of the investment adviser, his
         position with the investment adviser, and, in parentheses, his
         principal occupation is: Mark D. Olson (Partner, Wilson, Halbrook &
         Bayard), 107 W. Market Street, Georgetown, Delaware 19947.

         The remaining Officers of the investment adviser are:

         Executive Vice Presidents:          William D. Dawson, III
                                             Henry A. Frantzen
                                             J. Thomas Madden

         Senior Vice Presidents:             Joseph M. Balestrino
                                             Drew J. Collins
                                             Jonathan C. Conley
                                             Deborah A. Cunningham
                                             Mark E. Durbiano
                                             Sandra L. McInerney
                                             J. Alan Minteer
                                             Susan M. Nason
                                             Mary Jo Ochson
                                             Robert J. Ostrowski

         Vice Presidents:                    Todd A. Abraham
                                             J. Scott Albrecht
                                             Arthur J. Barry
                                             Randall S. Bauer
                                             David A. Briggs
                                             Micheal W. Casey
                                             Kenneth J. Cody
                                             Alexandre de Bethmann
                                             Michael P. Donnelly
                                             Linda A. Duessel
                                             Donald T. Ellenberger
                                             Kathleen M. Foody-Malus
                                             Thomas M. Franks
                                             Edward C. Gonzales
                                             James E. Grefenstette
                                             Susan R. Hill
                                             Stephen A. Keen
                                             Robert K. Kinsey
                                             Robert M. Kowit
                                             Jeff A. Kozemchak
                                             Richard J. Lazarchic
                                             Steven Lehman
                                             Marian R. Marinack
                                             Charles A. Ritter
                                             Keith J. Sabol
                                             Scott B. Schermerhorn
                                             Frank Semack
                                             Aash M. Shah
                                             Christopher Smith
                                             Tracy P. Stouffer
                                             Gregg S. Tenser
                                             Edward J. Tiedge
                                             Paige M. Wilhelm
                                             Jolanta M. Wysocka


<PAGE>


         Assistant Vice Presidents:          Nancy J. Belz
                                             Robert E. Cauley
                                             Lee R. Cunningham, II
                                             B. Anthony Delserone, Jr.
                                             Paul S. Drotch
                                             Salvatore A. Esposito
                                             Donna M. Fabiano
                                             John T. Gentry
                                             William R. Jamison
                                             Constantine Kartsonsas
                                             John C. Kerber
                                             Grant K. McKay
                                             Natalie F. Metz
                                             Joseph M. Natoli
                                             John Sheehy
                                             Michael W. Sirianni
                                             Leonardo A. Vila
                                             Lori A. Wolff

         Secretary:                          Stephen A. Keen

         Treasurer:                          Thomas R. Donahue

         Assistant Secretaries:              Thomas R. Donahue
                                             Richard B. Fisher
                                             Christine I. McGonigle

         Assistant Treasurer:                Richard B. Fisher

         The business address of each of the Officers of the investment adviser
         is Federated Investors Tower, Pittsburgh, Pennsylvania 15222-3779.
         These individuals are also officers of a majority of the investment
         advisers to the Funds listed in Part B of this Registration Statement.




<PAGE>


Item 29.    Principal Underwriters:

(a) Federated  Securities  Corp. the  Distributor  for shares of the Registrant,
acts as principal  underwriter for the following open-end investment  companies,
including the Registrant:

111 Corcoran Funds; Automated Government Money Trust; Blanchard Funds; Blanchard
Precious Metals Fund, Inc.; Cash Trust Series II; Cash Trust Series, Inc.; DG
Investor Series; Edward D. Jones & Co. Daily Passport Cash Trust; Federated
Adjustable Rate U.S. Government Fund, Inc.; Federated American Leaders Fund,
Inc.; Federated ARMs Fund; Federated Core Trust; Federated Equity Funds;
Federated Equity Income Fund, Inc.; Federated Fund for U.S. Government
Securities, Inc.; Federated GNMA Trust; Federated Government Income Securities,
Inc.; Federated Government Trust; Federated High Income Bond Fund, Inc.;
Federated High Yield Trust; Federated Income Securities Trust; Federated Income
Trust; Federated Index Trust; Federated Institutional Trust; Federated Insurance
Series; Federated Master Trust; Federated Municipal Opportunities Fund, Inc.;
Federated Municipal Securities Fund, Inc.; Federated Municipal Trust; Federated
Short-Term Municipal Trust; Federated Short-Term U.S. Government Trust;
Federated Stock and Bond Fund, Inc.; Federated Stock Trust; Federated Tax-Free
Trust; Federated Total Return Series, Inc.; Federated U.S. Government Bond Fund;
Federated U.S. Government Securities Fund: 1-3 Years; Federated U.S. Government
Securities Fund: 2-5 Years; Federated U.S. Government Securities Fund: 5-10
Years; Federated Utility Fund, Inc.; Fixed Income Securities, Inc.; High Yield
Cash Trust; Independence One Mutual Funds; Intermediate Municipal Trust;
International Series, Inc.; Investment Series Funds, Inc.; Investment Series
Trust; Liberty U.S. Government Money Market Trust; Liquid Cash Trust; Managed
Series Trust; Marshall Funds, Inc.; Money Market Management, Inc.; Money Market
Obligations Trust; Money Market Obligations Trust II; Money Market Trust;
Municipal Securities Income Trust; Newpoint Funds; Peachtree Funds; Regions
Funds; RIGGS Funds; SouthTrust Funds; Star Funds; Targeted Duration Trust;
Tax-Free Instruments Trust; The Planters Funds; The Virtus Funds; The Wachovia
Funds; The Wachovia Municipal Funds; Tower Mutual Funds; Trust for Financial
Institutions; Trust for Government Cash Reserves; Trust for Short-Term U.S.
Government Securities; Trust for U.S. Treasury Obligations; Vision Group of
Funds, Inc.; and World Investment Series, Inc.

Federated Securities Corp. also acts as principal  underwriter for the following
closed-end investment company: Liberty Term Trust, Inc.- 1999.



<PAGE>


(b)

         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant


Richard B. Fisher             Director, Chairman, Chief        President
Federated Investors Tower     Executive Officer, Chief
Pittsburgh, PA 15222-3779     Operating Officer, Asst.
                              Secretary and Asst.
                              Treasurer, Federated
                              Securities Corp.

Edward C. Gonzales            Director, Executive Vice         Executive Vice
Federated Investors Tower     President, Federated,              President
Pittsburgh, PA 15222-3779     Securities Corp.

Thomas R. Donahue             Director, Assistant Secretary        --
Federated Investors Tower     and Assistant Treasurer
Pittsburgh, PA 15222-3779     Federated Securities Corp.

James F. Getz                 President-Broker/Dealer,             --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John B. Fisher                President-Institutional Sales,       --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David M. Taylor               Executive Vice President             --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mark W. Bloss                 Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard W. Boyd               Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Laura M. Deger                Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Theodore Fadool, Jr.          Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Bryant R. Fisher              Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Christopher T. Fives          Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

James S. Hamilton             Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

James M. Heaton               Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779


<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

Keith Nixon                   Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Solon A. Person, IV           Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Timothy C. Pillion            Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Thomas E. Territ              Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Ernest G. Anderson            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Teresa M. Antoszyk            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John B. Bohnet                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Byron F. Bowman               Vice President, Secretary,           --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Jane E. Broeren-Lambesis      Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David J. Callahan             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mary J. Combs                 Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

R. Edmond Connell, Jr.        Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

R. Leonard Corton, Jr.        Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Kevin J. Crenny               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Daniel T. Culbertson          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

G. Michael Cullen             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Marc C. Danile                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

William C. Doyle              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Jill Ehrenfeld                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mark D. Fisher                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Joseph D. Gibbons             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John K. Goettlicher           Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Craig S. Gonzales             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Raymond Hanley                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Bruce E. Hastings             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Beth A. Hetzel                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

James E. Hickey               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Charlene H. Jennings          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

H. Joseph Kennedy             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Michael W. Koenig             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

Michael R. Manning            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mark J. Miehl                 Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard C. Mihm               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

J. Michael Miller             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Alec H. Neilly                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Thomas A. Peters III          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Robert F. Phillips            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard A. Recker             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Eugene B. Reed                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Paul V. Riordan               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John Rogers                   Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Brian S. Ronayne              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Thomas S. Schinabeck          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Edward L. Smith               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David W. Spears               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

John A. Staley                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Colin B. Starks               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Jeffrey A. Stewart            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

William C. Tustin             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Paul A. Uhlman                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Miles J. Wallace              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John F. Wallin                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard B. Watts              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Edward J. Wojnarowski         Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Michael P. Wolff              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Edward R. Bozek               Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Terri E. Bush                 Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Beth C. Dell                  Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David L. Immonen              Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Renee L. Martin               Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

Robert M. Rossi               Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Denis McAuley                 Treasurer,                           --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Leslie K. Platt               Assistant Secretary,                 --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779


            (c) Not applicable.


Item 30.    Location of Accounts and Records:

            All accounts and records required to be maintained by Section 31(a)
            of the Investment Company Act of 1940 and Rules 31a-1 through 31a-3
            promulgated thereunder are maintained at one of the following
            locations:

            Registrant                     Federated Investors Tower
                                           Pittsburgh, PA 15222-3779

            Federated Shareholder          Federated Investors Tower
            Services Company               Pittsburgh, PA 15222-3779
            Transfer Agent and Dividend
            Disbursing Agent

            Federated Services             Federated Investors Tower
            Company                        Pittsburgh, PA 15222-3779
            Administrator

            Federated Advisers             Federated Investors Tower
            Investment Adviser             Pittsburgh, PA 15222-3779

            State Street Bank and          P.O. Box 8600
            ---------------------
            Trust Company                  Boston, MA 02266-8600
            Custodian


Item 31.    Management Services:  Not applicable.


Item 32.    Undertakings:

     Registrant hereby undertakes to comply with the provisions of Section 16(c)
     of the 1940 Act with respect to the removal of Directors and the calling of
     special shareholder meetings by shareholders.


<PAGE>


                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant, CASH TRUST SERIES, INC., has
duly caused this Amendment to its Registration Statement to be signed on its
behalf by the undersigned, thereto duly authorized, in the City of Pittsburgh
and Commonwealth of Pennsylvania, on the 28th day of July, 1998.
                             CASH TRUST SERIES, INC.

                  BY: /s/ Nicholas J. Seitanakis
                  Nicholas J. Seitanakis, Assistant Secretary
                  Attorney in Fact for John F. Donahue
                  July 28, 1998

    Pursuant to the requirements of the Securities Act of 1933, this Amendment
to its Registration Statement has been signed below by the following person in
the capacity and on the date indicated:

    NAME                            TITLE                         DATE

By: /s/ J. Crilley Kelly
    J. Crilley Kelly              Attorney In Fact           July 28, 1998
    ASSISTANT SECRETARY           For the Persons
                                  Listed Below

    NAME                            TITLE

John F. Donahue*                  Chairman and Director
                                  (Chief Executive Officer)

Richard B. Fisher*                President

John W. McGonigle*                Executive Vice President,
                                  Treasurer and Secretary
                                  (Principal Financial and
                                  Accounting Officer)

Thomas G. Bigley*                 Director

John T. Conroy, Jr.*              Director

William J. Copeland*              Director

J. Christopher Donahue*           Executive Vice President
                                  and Director

James E. Dowd*                    Director

Lawrence D. Ellis, M.D.*          Director

Edward L. Flaherty, Jr.*          Director

Peter E. Madden*                  Director

Gregor F. Meyer*                  Director

John E. Murray, Jr.*              Director

Wesley W. Posvar*                 Director

Marjorie P. Smuts*                Director

* By Power of Attorney




<TABLE> <S> <C>


       
<S>                                 <C>

<ARTICLE>                           6
<SERIES>
     <NUMBER>                       02
     <NAME>                         Cash Trust Series, Inc.
                                    Municipal Cash Series

<PERIOD-TYPE>                       6-mos
<FISCAL-YEAR-END>                   May-31-1998
<PERIOD-END>                        Nov-30-1997
<INVESTMENTS-AT-COST>               535,322,343
<INVESTMENTS-AT-VALUE>              535,322,343
<RECEIVABLES>                       3,842,826
<ASSETS-OTHER>                      4,154,409
<OTHER-ITEMS-ASSETS>                0
<TOTAL-ASSETS>                      543,319,578
<PAYABLE-FOR-SECURITIES>            7,210,198
<SENIOR-LONG-TERM-DEBT>             0
<OTHER-ITEMS-LIABILITIES>           1,102,594
<TOTAL-LIABILITIES>                 8,312,792
<SENIOR-EQUITY>                     0
<PAID-IN-CAPITAL-COMMON>            535,006,786
<SHARES-COMMON-STOCK>               505,006,786
<SHARES-COMMON-PRIOR>               515,059,673
<ACCUMULATED-NII-CURRENT>           0
<OVERDISTRIBUTION-NII>              0
<ACCUMULATED-NET-GAINS>             0
<OVERDISTRIBUTION-GAINS>            0
<ACCUM-APPREC-OR-DEPREC>            0
<NET-ASSETS>                        535,006,786
<DIVIDEND-INCOME>                   0
<INTEREST-INCOME>                   10,568,567
<OTHER-INCOME>                      0
<EXPENSES-NET>                      2,734,756
<NET-INVESTMENT-INCOME>             7,833,811
<REALIZED-GAINS-CURRENT>            0
<APPREC-INCREASE-CURRENT>           0
<NET-CHANGE-FROM-OPS>               7,833,811
<EQUALIZATION>                      0
<DISTRIBUTIONS-OF-INCOME>           7,833,811
<DISTRIBUTIONS-OF-GAINS>            0
<DISTRIBUTIONS-OTHER>               0
<NUMBER-OF-SHARES-SOLD>             996,419,320
<NUMBER-OF-SHARES-REDEEMED>         983,422,603
<SHARES-REINVESTED>                 6,950,396
<NET-CHANGE-IN-ASSETS>              19,947,113
<ACCUMULATED-NII-PRIOR>             0
<ACCUMULATED-GAINS-PRIOR>           0
<OVERDISTRIB-NII-PRIOR>             0
<OVERDIST-NET-GAINS-PRIOR>          0
<GROSS-ADVISORY-FEES>               1,351,590
<INTEREST-EXPENSE>                  0
<GROSS-EXPENSE>                     2,969,068
<AVERAGE-NET-ASSETS>                539,158,894
<PER-SHARE-NAV-BEGIN>               1.000
<PER-SHARE-NII>                     0.010
<PER-SHARE-GAIN-APPREC>             0.000
<PER-SHARE-DIVIDEND>                0.010
<PER-SHARE-DISTRIBUTIONS>           0.000
<RETURNS-OF-CAPITAL>                0.000
<PER-SHARE-NAV-END>                 1.000
<EXPENSE-RATIO>                     1.00
<AVG-DEBT-OUTSTANDING>              0
<AVG-DEBT-PER-SHARE>                0.000
        



</TABLE>

<TABLE> <S> <C>


       
<S>                           <C>

<ARTICLE>                     6
<SERIES>
     <NUMBER>                 03
     <NAME>                   Cash Trust Series, Inc.
                              Prime Cash Series

<PERIOD-TYPE>                 6-mos
<FISCAL-YEAR-END>             May-31-1998
<PERIOD-END>                  Nov-30-1997
<INVESTMENTS-AT-COST>         3,246,141,231
<INVESTMENTS-AT-VALUE>        3,246,141,231
<RECEIVABLES>                 9,129,585
<ASSETS-OTHER>                31,458,249
<OTHER-ITEMS-ASSETS>          0
<TOTAL-ASSETS>                3,286,729,065
<PAYABLE-FOR-SECURITIES>      131,488,700
<SENIOR-LONG-TERM-DEBT>       0
<OTHER-ITEMS-LIABILITIES>     6,746,677
<TOTAL-LIABILITIES>           138,235,377
<SENIOR-EQUITY>               0
<PAID-IN-CAPITAL-COMMON>      3,148,493,688
<SHARES-COMMON-STOCK>         3,148,493,688
<SHARES-COMMON-PRIOR>         2,363,381,880
<ACCUMULATED-NII-CURRENT>     0
<OVERDISTRIBUTION-NII>        0
<ACCUMULATED-NET-GAINS>       0
<OVERDISTRIBUTION-GAINS>      0
<ACCUM-APPREC-OR-DEPREC>      0
<NET-ASSETS>                  3,148,493,688
<DIVIDEND-INCOME>             0
<INTEREST-INCOME>             79,877,018
<OTHER-INCOME>                0
<EXPENSES-NET>                13,995,841
<NET-INVESTMENT-INCOME>       65,881,177
<REALIZED-GAINS-CURRENT>      0
<APPREC-INCREASE-CURRENT>     0
<NET-CHANGE-FROM-OPS>         65,881,177
<EQUALIZATION>                0
<DISTRIBUTIONS-OF-INCOME>     65,881,177
<DISTRIBUTIONS-OF-GAINS>      0
<DISTRIBUTIONS-OTHER>         0
<NUMBER-OF-SHARES-SOLD>       5,630,204,312
<NUMBER-OF-SHARES-REDEEMED>   4,906,849,884
<SHARES-REINVESTED>           61,757,380
<NET-CHANGE-IN-ASSETS>        785,111,808
<ACCUMULATED-NII-PRIOR>       0
<ACCUMULATED-GAINS-PRIOR>     0
<OVERDISTRIB-NII-PRIOR>       0
<OVERDIST-NET-GAINS-PRIOR>    0
<GROSS-ADVISORY-FEES>         6,973,393
<INTEREST-EXPENSE>            0
<GROSS-EXPENSE>               16,655,708
<AVERAGE-NET-ASSETS>          2,781,735,992
<PER-SHARE-NAV-BEGIN>         1.000
<PER-SHARE-NII>               0.020
<PER-SHARE-GAIN-APPREC>       0.000
<PER-SHARE-DIVIDEND>          0.020
<PER-SHARE-DISTRIBUTIONS>     0.000
<RETURNS-OF-CAPITAL>          0.000
<PER-SHARE-NAV-END>           1.000
<EXPENSE-RATIO>               1.00
<AVG-DEBT-OUTSTANDING>        0
<AVG-DEBT-PER-SHARE>          0.000
        





</TABLE>


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