USAA MUTUAL FUND INC
485APOS, 1997-05-16
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     As filed with the Securities and Exchange Commission on May 16, 1997.
    

                                                    1933 Act File No. 2-49560
                                                    1940 Act File No. 811-2429

                       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. 45
    

                                       and

        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 X

   
                                Amendment No. 33
    

                             USAA MUTUAL FUND, INC.
                -------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

                 9800 Fredericksburg Rd., San Antonio, TX 78288
             ------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)

        Registrant's Telephone Number, including Area Code (210) 498-0600

                          Michael D. Wagner, Secretary
                             USAA MUTUAL FUND, INC.
                             9800 Fredericksburg Rd.
                           San Antonio, TX 78288-0227
                     ---------------------------------------
                     (Name and Address of Agent for Service)

Approximate Date of Proposed Public Offering:  As soon as practicable after
the effective date of this Registration Statement.

It is proposed that this filing will become effective under Rule 485

   
___ immediately upon filing pursuant to paragraph (b)
___ on (date) pursuant to paragraph (b)
___ 60 days after filing pursuant to paragraph (a)(1)
___ on (date) pursuant to paragraph (a)(1) 
___ 75 days after filing  pursuant to paragraph (a)(2)
_X_ on (August 1, 1997) pursuant to paragraph (a)(2)
    

If appropriate, check the following box:
___  This  post-effective  amendment  designates a new  effective  date for a
     previously filed post-effective amendment.

                       DECLARATION PURSUANT TO RULE 24f-2

   
The Registrant has heretofore  registered an indefinite  number of shares of the
Aggressive  Growth Fund,  Growth Fund,  Growth & Income Fund, Income Stock Fund,
Income Fund, Short-Term Bond Fund, and Money Market Fund pursuant to Rule 24f- 2
under the Investment  Company Act of 1940 (the 1940 Act).  With respect to these
Funds, the Registrant filed its Rule 24f-2 notice for the fiscal year ended July
31, 1996 on September 26, 1996.  The  Registrant  has  heretofore  registered an
indefinite  number of shares of the S&P 500 Index  Fund  pursuant  to Rule 24f-2
under the 1940 Act. With respect to the S&P 500 Index Fund, the Registrant filed
its Rule 24f-2  notice for the fiscal year ended  December  31, 1996 on February
20,  1997.  The S&P 500 Index Fund is a "feeder  fund"  within a  "master-feeder
structure."  The Registrant now declares its intention to register an indefinite
number of shares of the  Science &  Technology  Fund and  Young Investors Growth
Fund  pursuant to Rule 24f-2 under the Act.

                                            Exhibit Index on Pages 67

                                                                 Page 1 of 100
    


<PAGE>



                             USAA MUTUAL FUND, INC.


                              CROSS REFERENCE SHEET

                                     Part A


FORM N-1A ITEM NO.                         SECTION IN PROSPECTUS

1.  Cover Page..........................   Same

2.  Synopsis............................   Fees and Expenses

   
3.  Condensed Financial
       Information......................   Performance Information
    

4.  General Description
       of Registrant....................   Investment Objective and Policies
                                           Description of Shares

   
5.  Management of the Fund..............   Management of the Company
                                           Service Providers
    

6.  Capital Stock and Other
       Securities.......................   Dividends, Distributions and Taxes
                                           Description of Shares

7.  Purchase of Securities
       Being Offered...................... Purchase of Shares
                                           Conditions of Purchase and Redemption
                                           Exchanges
                                           Other Services
                                           Share Price Calculation

8.  Redemption or Repurchase............   Redemption of Shares
                                           Conditions of Purchase and Redemption
                                           Exchanges
                                           Other Services

9.  Legal Proceedings...................   Not Applicable



<PAGE>



                             USAA MUTUAL FUND, INC.


                              CROSS REFERENCE SHEET

                                     Part B


FORM N-1A ITEM NO.                         SECTION IN STATEMENT OF ADDITIONAL
                                           INFORMATION

10.  Cover Page.........................   Same

11.  Table of Contents..................   Same

12.  General Information and
        History.........................   Not Applicable

13.  Investment Objectives
        and Policies....................   Investment Policies
                                           Investment Restrictions
                                           Portfolio Transactions and
                                             Brokerage Commissions

   
14.  Management of the
        Registrant.....................   Directors and Officers of the Company

15.  Control Persons and
        Principal Holders
        of Securities..................   Directors and Officers of the Company

16.  Investment Advisory and
        Other Services.................   Directors and Officers of the Company
                                          The Company's Manager
                                          General Information
    

17.  Brokerage Allocation and
        Other Practices................   Portfolio Transactions and
                                            Brokerage Commissions

18.  Capital Stock and Other
        Securities.....................   Further Description of Shares

19.  Purchase, Redemption and
        Pricing of Securities
        Being Offered..................   Valuation of Securities
                                          Additional Information Regarding
                                             Redemption of Shares
                                          Investment Plans

20.  Tax Status........................   Tax Considerations

21.  Underwriters......................   General Information

22.  Calculation of Performance
        Data...........................   Calculation of Performance Data

   
23.  Financial Statements..............   Not Applicable
    



<PAGE>



                                     Part A




   
                              Prospectuses for the

            Science & Technology Fund and Young Investors Growth Fund

                               are included herein

                  Not included in this Post-Effective Amendment
              are the Prospectuses for the Aggressive Growth Fund,
              Growth Fund, Growth & Income Fund, Income Stock Fund,
                Income Fund, Short-Term Bond, S&P 500 Index Fund,
                              and Money Market Fund
    


<PAGE>


                                     Part A




                               Prospectus for the

   
                            Science & Technology Fund
    

                               is included herein



                                     <PAGE>


                                                                  Prospectus
                                                              August 1, 1997

[USAA EAGLE LOGO]   USAA
                    SCIENCE &
                    TECHNOLOGY FUND



Shares of this fund are not deposits or other  obligations of, or guaranteed by,
the  USAA  Federal  Savings  Bank,  are not  insured  by the  FDIC or any  other
Government  Agency,  and are subject to investment risks. The net asset value of
funds of this type will fluctuate from time to time.

As with  other  mutual  funds,  these  securities  have  not  been  approved  or
disapproved  by the  Securities  and Exchange  Commission  (SEC) nor has the SEC
passed upon the accuracy or adequacy of this Prospectus.  Any  representation to
the contrary is a criminal offense.

The  Fund is a  diversified  no-load  mutual  fund  offered  by USAA  Investment
Management  Company.  USAA will seek capital  appreciation by investing at least
80% of the Fund's total  assets in equity  securities  of companies  expected to
benefit from the  development and use of scientific and  technological  advances
and improvements.






                                TABLE OF CONTENTS
Who Manages the Fund?............................................   2
What is the Investment Objective?................................   2
Will the Value of Your Investment Fluctuate?.....................   2
Is This Fund for You?............................................   2
How Do You Buy?..................................................   2
Fees and Expenses................................................   3
Performance Information..........................................   4
A Word About Risk................................................   4
Fund Investments.................................................   4
Fund Management..................................................   6
Using Mutual Funds in an Investment Program......................   7
How to Invest with Us............................................   8
Important Information About Purchases and Redemptions............   9
Exchanges........................................................  10
Shareholder Information..........................................  11
Description of Shares............................................  12
Appendix A.......................................................  13
USAA Family of No-Load Mutual Funds..............................  14

                                                                              1

<PAGE>

This Prospectus  provides you with information you should know before you invest
in the Fund. Please read it and keep it for future reference.

WHO MANAGES THE FUND?

     USAA  Investment  Management  Company manages the Fund. For easier reading,
     USAA Investment  Management  Company will be referred to as "we" throughout
     the rest of the Prospectus.

WHAT IS THE INVESTMENT OBJECTIVE?

     The  Fund's  investment  objective  is  capital   appreciation.   See  Fund
     Investments on page 4 for more information.

WILL THE VALUE OF YOUR INVESTMENT FLUCTUATE?

     Yes, it will. The value of your investment  will increase or decrease.  The
     Fund's  portfolio  consists of companies whose value is highly dependent on
     scientific and technological  developments which are speculative in nature.
     Many of the products and services of these  companies  are subject to short
     life cycles and intense pricing pressures.  Therefore,  the market value of
     the Fund's portfolio and the Fund's price per share are likely to fluctuate
     significantly.

IS THIS FUND FOR YOU?

     This fund might be appropriate as part of your investment portfolio 
if . . .

      * You are looking for significant growth
      * You are willing to accept very high risk 
      * You are looking for a long-term investment

     This fund may not be appropriate as part of your investment portfolio
if . . .

      * You need a steady income
      * You are  unwilling to take a greater risk for  long-term  goals
      * You may need your money  back  within  seven  years
      * You need an  investment  that provides tax-free income

     If you  feel  this  fund is not the one  for  you,  refer  to page 14 for a
     complete list of the USAA Family of No-Load Mutual Funds.

HOW DO YOU BUY?

     You may make your initial investment directly by mail, in person or, in
     certain instances, by telephone. The minimum initial investment is $3,000
     [$500 for Uniform Gifts/Transfers to Minors Act (UGMA/UTMA) accounts and 
     $250 for IRAs] and can be made by check or by wire. There is more 
     information about how to purchase Fund shares on page 8.
2

<PAGE>

FEES AND EXPENSES

     This  summary  provides  information  to assist  you in  understanding  the
     expenses  you will  bear  directly  or  indirectly  in  connection  with an
     investment in the Fund.

     Shareholder Transaction Expenses

     There are no fees charged to your account when you buy,  sell, or hold Fund
     shares. However, should you request delivery of redemption proceeds by wire
     transfer,  you will be charged a $10 fee.  (Your bank may also charge a fee
     for receiving wires.)

     Annual Fund Operating Expenses

     The Fund pays certain expenses. Unlike shareholder transaction charges, the
     Fund's expenses are not charged  directly to your account,  but instead are
     reflected in the Fund's share price and  dividends.  The figures below have
     been estimated for the Fund's first year of operation and are calculated as
     a percentage of estimated average net assets (ANA).

             Management Fees                         .75%
             12b-1 Fees                              None
             Other Expenses                          .75%
                                                     ---
             Total Fund Operating Expenses          1.50%
                                                    ====
                                                    
   * 12b-1 fees -- Some mutual funds charge these fees to pay for the costs of
     selling Fund shares.

     Example of Effect of Fund Operating Expenses

     You would pay the  following  expenses on a $1,000  investment in the Fund,
     assuming (1) 5% annual return and (2)  redemption at the end of the periods
     shown.

             1 year............................................     $ 15
             3 years...........................................       47


     This example is not a representation  of past or future expenses and actual
     expenses may be greater or less than those shown.

                                                                              3

<PAGE>

PERFORMANCE INFORMATION

                                (Telelphone logo)
                                  TouchLine(R)
                                 1-800-531-8777
                                      press
                                       (1)
                                      then
                                       (1)
                                      then
                                    (3)(1)(#)

Please  consider  information  in light of the Fund's  investment  objective and
policies and market  conditions  during the  reported  time  periods.  Remember,
historical  performance is not  representative of the future  performance of the
Fund. The value of your shares may go up or down. For the most current price and
return  information for this Fund, you may call TouchLine(R) at 1-800- 531-8777.
Press 1 for the Mutual Fund Menu,  press 1 again for prices and  returns.  Then,
press 31 followed by the pound sign when asked for a Fund Code.

You may see the  Fund's  total  return  quoted in  advertisements  and  reports.
Standardized  formulas that apply to all mutual funds determine the quotation of
total  return.  Total return is the share price  change  adjusted to account for
reinvested  distributions  of  income  and  capital  gains.  You may  also see a
comparison of the Fund's  performance to that of other mutual funds with similar
investment objectives and to stock or relevant indexes.

A WORD ABOUT RISK

     Portions of this Prospectus describe the risks you will face as an investor
     in the Fund. It is important to keep in mind that  generally the higher the
     risk of losing money, the higher the potential reward.  The reverse,  also,
     is generally  true:  the lower the risk,  the lower the  potential  reward.
     However,  as you consider an investment  in the Fund,  you should also take
     into account your tolerance for the daily fluctuations of the stock market.

[CAUTION LIGHT]

   Look for this symbol  throughout the Prospectus.  It is used to mark detailed
   information about the main risks that you, as a shareholder of the Fund, will
   face.

FUND INVESTMENTS

   Investment Policies and Risks

      Q     What is the Fund's investment policy?

      A     Under  normal  conditions,  the Fund will invest at least 80% of its
            assets in equity  securities  that we expect will  benefit  from the
            development  and use of scientific  and  technological  advances and
            improvements.  Most  of  these  assets  will  be  invested  in  U.S.
            securities;  however, the Fund may also invest in foreign securities
            when such  securities  are  considered to be in line with the Fund's
            investment  objective.  For convenience,  this Prospectus  refers to
            common stocks, preferred stocks, securities which carry the right to
            buy  common  stocks,  and  convertible  securities  collectively  as
            "equity securities."


4

<PAGE>

            As a temporary defensive measure,  the Fund may invest up to 100% of
            its assets in high-quality, short-term debt instruments.

      Q     In what industries will the Fund likely invest?

      A     The Fund will  invest in  industries  such as, but not  limited  to,
            biotechnology,    computer   hardware,    software   and   services,
            communication   and   telecommunication   equipment   and  services,
            electronics,  health care,  drugs,  medical  products and  supplies,
            specialized  health care  services,  and aerospace and defense.  The
            Fund may also invest in other industries that we believe may benefit
            indirectly   from  research  and  development  in  the  science  and
            technology fields.

      Q     What are the Fund's potential risks?

      A     Some of the potential risks involved in investing in this Fund 
            include:

[CAUTION LIGHT]

    Sector Risk. Because of the competitiveness and rapid changes in the science
    and technology sector,  many of the companies whose equity securities are in
    the Fund's  portfolio  are subject to  distinctive  risks.  The products and
    services  of  these  companies  may not be  economically  successful  or may
    quickly become outdated. In addition, many of these companies are subject to
    significant  governmental  regulation and may require governmental  approval
    for their  products and services.  For these  reasons,  a portfolio of these
    assets is likely to be more  volatile  than a portfolio  that is more widely
    diversified in other economic sectors.

[CAUTION LIGHT]

    Market Risk. As a mutual fund  investing in equity  securities,  the Fund is
    subject to the risk that stock  prices in general will decline over short or
    even extended periods. The stock market tends to run in cycles, with periods
    when stock prices generally go up and periods when stock prices generally go
    down. Equity securities tend to go up and down more than bonds.

[CAUTION LIGHT]

    Foreign Investing.  There are certain risks involved in investing in foreign
    securities  that are not in U.S.  securities.  Some of these  risks  include
    currency exchange rate fluctuations,  foreign market illiquidity,  increased
    price volatility,  exchange control  regulations,  foreign ownership limits,
    different   accounting,   reporting   and   disclosure   requirements,   and
    difficulties  in  obtaining   judgments.   In  the  past,  equity  and  debt
    instruments of foreign  markets have been more volatile than equity and debt
    instruments of U.S. securities markets.

     The Fund will not generally  trade in securities  for  short-term  profits;
     however,  if  circumstances  warrant,  it may purchase and sell  securities
     without regard to the length of time held.  The Fund's  portfolio rate will
     vary from year to year  depending on market  conditions,  and it may exceed
     100%.  Because a high turnover  rate  increases  transaction  costs and may
     increase  taxable  capital gains,  we will carefully  weigh the anticipated
     benefits of trading.

     For additional  information  about other  investments in which the Fund may
     invest, see Appendix A on page 13.


                                                                              5

<PAGE>

     Investment Restrictions

     The following restrictions may only be changed with shareholder approval:

     *   The  Fund  may not  invest  more  than  25% of its  total  assets  in
         one industry.

     *   The Fund may not  invest  more than 5% of its  total  assets in any one
         issuer or own more than 10% of the outstanding voting securities of any
         one  issuer.   This  limitation  does  not  apply  to  U.S.  Government
         securities, and only applies to 75% of the Fund's total assets.

     *   The Fund may borrow  only for  temporary  or  emergency  purposes in an
         amount not exceeding 33 1/3% of its total assets.

     You will find a complete listing of the precise investment  restrictions in
     the Fund's Statement of Additional Information (SAI).

FUND MANAGEMENT

     The Board of Directors of USAA Mutual Fund,  Inc.  (Company),  of which the
     Fund is a series,  supervises  the  business  affairs of the  Company.  The
     Company has  retained us to serve as the  manager  and  distributor  of the
     Company.

     We are an affiliate of United Services  Automobile  Association  (USAA),  a
     large,  diversified financial services institution.  As of the date of this
     Prospectus,  we had  approximately  $___  billion  in  total  assets  under
     management. Our mailing address is 9800 Fredericksburg Rd., San Antonio, TX
     78288.

     We provide management services to the Fund. We are responsible for managing
     the Fund's  portfolio  (including  placement of  brokerage  orders) and its
     business affairs,  subject to the authority of and supervision by the Board
     of Directors.  For our  services,  the Fund pays us an annual fee. The fee,
     which is  three-fourths  of one percent (.75%) of ANA, accrues daily and is
     paid  monthly.  This fee is higher than that  charged to most other  mutual
     funds,  but in our opinion,  is  comparable to fees charged to other mutual
     funds with similar investment objectives and policies.

     In addition to the fees paid pursuant to the Advisory Agreement, the Fund's
     operating  expenses generally consist of expenses for issuing and redeeming
     Fund  shares,  transfer  agent and  custodian  charges,  auditing and legal
     expenses,  certain expenses of registering and qualifying  shares for sale,
     fees of Directors who are not interested  (not  affiliated)  persons of us,
     and costs of typesetting,  printing,  and mailing the Prospectus,  SAI, and
     periodic reports to existing shareholders.

     We  also  provide  distribution   services  to  the  Fund  and  receive  no
     compensation for those services.

     Our officers and employees,  as well as those of the Company, may engage in
     personal securities transactions subject to restrictions and procedures set
     forth in the Joint Code of Ethics adopted by the Company and us.


6

<PAGE>

     Portfolio Transactions

     USAA  Brokerage  Services,  our  discount  brokerage  service,  may execute
     purchases  and sales of equity  securities  for the Fund's  portfolio.  The
     Board of Directors has adopted  procedures  to ensure that any  commissions
     paid to USAA Brokerage Services are reasonable and fair.

     Portfolio Manager

     The following individual is primarily responsible for managing the Fund.

     Curt  Rohrman,   Assistant  Vice  President  of  Equity  Investments  since
     September  1996,  is the  portfolio  manager.  He has ten years  investment
     management experience and has worked for us for two years. Prior to joining
     us, Mr.  Rohrman worked for CS First Boston  Corporation  from June 1988 to
     March 1995. He earned the Chartered  Financial Analyst (CFA) designation in
     1991 and is a member  of the  Association  for  Investment  Management  and
     Research  (AIMR)  and the San  Antonio  Financial  Analysts  Society,  Inc.
     (SAFAS).  He holds an MBA from the  University of Texas at Austin and a BBA
     from Texas Christian University.

[PHOTOGRAPH OF PORTFOLIO MANANGER]
     Curt Rohrman

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

     I. The Idea Behind Mutual Funds

     Mutual funds were  conceived  as a vehicle that could give small  investors
     some of the advantages  enjoyed by wealthy  investors.  A relatively  small
     investment buys part of a diversified portfolio.  That portfolio is managed
     by investment  professionals,  relieving you of the need to make individual
     stock  or bond  selections.  You  also  enjoy  conveniences,  such as daily
     pricing,  liquidity,  and in the case of the USAA Family of Funds, no sales
     charge. The portfolio,  because of its size, has lower transaction costs on
     its  trades  than most  individuals  would  have.  As a result,  you own an
     investment  that in earlier  times would have been  available  only to very
     wealthy people.

     II.  Using Funds in an Investment Program

     In choosing a mutual fund as an investment vehicle,  you are giving up some
     investment  decisions,  but must still make others. The decisions you don't
     have to make are those  involved with choosing  individual  securities.  We
     will  perform  that  function.   In  addition,  we  will  arrange  for  the
     safekeeping of securities,  auditing the annual financial  statements,  and
     daily valuation of the Fund, as well as other functions.

     You,  however,  retain at least part of the  responsibility  for an equally
     important  decision.  This  decision  includes  determining  a portfolio of
     mutual funds that balances your  investment  goals with your  tolerance for
     risk.  It is likely that this decision may involve the use of more than one
     fund of the USAA Family of Funds.


                                                                              7

<PAGE>

     For example,  assume you wished to invest in a  widely-diversified,  common
     stock portfolio. You could include the Aggressive Growth Fund, Growth Fund,
     Growth & Income Fund,  Income  Stock  Fund, and  Science  & Technology Fund
     in such a portfolio. This portfolio would include stocks of large and small
     companies,  high-dividend stocks, and  growth stocks.  This is just one way
     you  could  combine  funds  that fit your own risk and  reward goals.

     III.  USAA's Family of Funds

     We offer you another  alternative in our asset strategy  funds,  the Income
     Strategy, Growth and Tax Strategy, Balanced Strategy, Cornerstone Strategy,
     and  Growth   Strategy   Funds.   These  unique   mutual  funds  provide  a
     professionally  managed  diversified  investment  portfolio within a mutual
     fund.  They are  designed  for the  individual  who prefers to delegate the
     asset  allocation  process to an investment  manager and are  structured to
     achieve diversification across a number of investment categories.

     Whether  you  prefer to create  your own mix of mutual  funds or use a USAA
     Asset  Strategy  Fund,  the USAA Family of Funds  provides a broad range of
     choices covering just about any investor's investment objectives. Our sales
     representatives  stand ready to inform you of your  choices and to help you
     craft a portfolio which meets your needs.

HOW TO INVEST WITH US

     Purchase of Shares

     Opening an Account

     You may  open an  account  and  make an  investment  by  mail,  bank  wire,
     electronic funds transfer (EFT),  phone, or in person.  A complete,  signed
     application is required for each new account.  See your Investor's Guide to
     USAA Mutual Fund Services for additional purchase information.

     Tax ID Number

     Each shareholder named on the account must provide a social security number
     or tax identification number to avoid possible withholding requirements.

     Effective Date

     When you make a purchase,  your purchase  price will be the net asset value
     (NAV) per share next  determined  after we receive  your  request in proper
     form.  The Fund's NAV is  determined  at the close of the  regular  trading
     session  (generally 4:00 p.m.  Eastern Time) of the New York Stock Exchange
     (NYSE) each day on which the  Exchange is open.  If we receive your request
     prior  to that  time,  your  purchase  price  will  be the  NAV  per  share
     determined for that day. If we receive your request after the time at which
     the NAV per share is calculated, the purchase will be effective on the next
     business day. If you plan to purchase Fund shares with a foreign check,  we
     suggest you convert your foreign check to U.S.  dollars prior to investment
     in the  Fund to  avoid  a  potential  delay  in the  effectiveness  of your
     purchase  of up to four to six  weeks.  Furthermore,  a bank  charge may be
     assessed in the clearing process, which will be deducted from the amount of
     the purchase.

8

<PAGE>

     Minimum Investments

     Initial Purchase:         $3,000 [$500 Uniform Gifts/Transfers to Minors
                               Act (UGMA/UTMA) accounts and $250 for IRAs] or if
                               you elect to have monthly electronic investments
                               of at least $50 each, only $100 minimum is
                               required to open an account.

     Additional Purchases:     $50

     Redemption of Shares

     You may redeem Fund shares by written, fax, telegraph, or telephone request
     on any day the NAV per share is calculated.  Redemptions  will be effective
     on the day on which  instructions  are received and accepted.  However,  if
     instructions  are received after the NAV per share  calculation  (generally
     4:00 p.m. Eastern Time),  redemption will be effective on the next business
     day.

     Telephone  redemption is  automatically  established when you complete your
     application.  The Fund will employ  reasonable  procedures  to confirm that
     instructions  communicated by telephone are genuine, and if it does not, it
     may  be  liable  for  any  losses  due  to   unauthorized   or   fraudulent
     instructions.  Before any discussion  regarding your account, we obtain the
     following  information:  (1) USAA number or account number, (2) the name(s)
     on  the  account  registration,  and  (3)  social  security  number  or tax
     identification number for the account registration.  In addition, we record
     all telephone  communications  with you and send  confirmations  of account
     transactions to the address of record.

     Within seven days after the  effective  date of  redemption,  we distribute
     proceeds. Payment  for  redemption of shares purchased by check or EFT will
     not be disbursed until the purchase check or EFT has  cleared, which  could
     take  up  to 15  days from  the  purchase  date. If  you  are  considering 
     redeeming  shares soon  after purchase, you should purchase by bank wire or
     certified check to avoid delay.

     In addition,  the Company may elect to suspend the  redemption of shares or
     postpone the date of payment in limited circumstances.

     See your  Investor's  Guide to USAA Mutual  Fund  Services  for  additional
     information on redemption of shares and methods of payment.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

     Account Balance

     The Board of  Directors  may cause the  redemption  of an account with less
     than 10 shares, subject to certain limitations.

     Beginning in September 1998, and occurring each September thereafter,  USAA
     Shareholder  Account Services (SAS), the Fund's transfer agent, will assess
     a small  balance  account  fee of $12 to each  shareholder  account  with a
     balance,  at the time of  assessment,  of less  than  $2,000.  The fee will
     reduce total transfer agency fees paid by the Fund to SAS.  Accounts exempt
     from the fee  include:  (1) any  account  regularly  purchasing  additional
     shares each month through an

                                                                              9

<PAGE>

     automatic  investment  plan; (2) any account  registered  under the Uniform
     Gifts/Transfers  to Minors Act (UGMA/UTMA);  (3) all (non IRA) money market
     fund  accounts;  (4) any account  whose  registered  owner has an aggregate
     balance of $50,000 or more invested in USAA mutual  funds;  and (5) all IRA
     accounts (for the first year the account is open).

     Company Rights

     The Company reserves the right to:

     *   reject purchase or exchange orders when in the best interest of the 
         Company;

     *   limit or discontinue the offering of shares of any portfolio of the 
         Company without notice to the shareholders;

     *   impose a redemption charge of up to 1% of the net asset value of shares
         redeemed  if  circumstances  indicate  a charge  is  necessary  for the
         protection  of  remaining   investors   (for   example,   if  excessive
         market-timing  share activity  unfairly burdens  long-term  investors);
         provided, however, this 1% charge will not be imposed upon shareholders
         unless authorized by the Board of Directors and the required notice has
         been given to shareholders;

     *   require a signature guarantee for purchases, redemptions, or changes in
         account  information in those instances where the  appropriateness of a
         signature authorization is in question. The SAI contains information on
         acceptable guarantors.

     Other Information

     For  information  on  automatic  investment  plans  as well as  shareholder
     statements  and  reports,  please  refer to your  Investor's  Guide to USAA
     Mutual Fund Services.

EXCHANGES

     Exchange Privilege

     The exchange privilege is automatic when you complete your application. You
     may exchange  shares among Funds in the USAA Family of Funds,  provided you
     do not hold these shares in stock  certificate  form and that the shares to
     be acquired are offered in your state of residence. SAS will simultaneously
     process  exchange  redemptions  and  purchases  at the  share  prices  next
     determined  after the exchange  order is received.  For federal  income tax
     purposes,  an exchange  between Funds is a taxable event,  and as such, you
     may realize a capital gain or loss.

     The Fund has undertaken certain procedures regarding telephone 
     transactions.  See Redemption of Shares.

     Exchange Limitations, Excessive Trading

     To minimize Fund costs and to protect the Funds and their shareholders from
     unfair expense burdens, the Funds restrict excessive  exchanges.  The limit
     on  exchanges  out of any Fund in the USAA Family of Funds for each account
     is six per calendar  year (except that there is no  limitation on exchanges
     out of the Tax Exempt Short-Term Fund,  Short-Term Bond Fund, or any of the
     money market funds in the USAA Family of Funds).

10

<PAGE>

SHAREHOLDER INFORMATION

     Share Price Calculation

     The price at which shareholders purchase and redeem fund shares is equal to
     the NAV per share  determined  on the  effective  date of the  purchase  or
     redemption.

     When

     The Fund's NAV per share is calculated at the close of the regular  trading
     session of the NYSE,  which is usually 4:00 p.m.  Eastern Time. You may buy
     and sell Fund shares at the NAV per share without a sales charge.

     How

     The NAV per share is calculated by adding the value of all  securities  and
     other assets in the Fund, deducting liabilities, and dividing by the number
     of shares outstanding.

     Dividends and Distributions

     Net investment  income  distributions  occur yearly.  Any net capital gains
     distribution  usually  occurs within 45 days of the July 31 fiscal year end
     which would be somewhere around the middle of September. The Fund will make
     additional  distributions,  if  necessary,  to avoid the  imposition of any
     federal income or excise tax.

     All income  dividends  and capital  gain  distributions  are  automatically
     reinvested,  unless we receive  different  instructions from you. The share
     price will be the NAV of the Fund shares computed on the ex-dividend  date.
     Any income  dividend or capital  gain  distributions  paid by the Fund will
     reduce the NAV per share by the  amount of the  dividend  or  distribution.
     These distributions are subject to taxes.

     We will invest any dividend or distribution payment  returned to us in your
     account at the then-current NAV per share. Dividend and distribution checks
     become void six months from the date on the check. The amount of the voided
     check will be invested in your account at the then-current NAV per share.

     Federal Taxes

     This tax  information is quite general and refers to the federal income tax
     provisions  in  effect  as of the date of this  Prospectus.  We urge you to
     consult  your own tax adviser  about the status of  distributions  from the
     Fund in your own state and locality.

     Fund - The Fund intends to qualify as a regulated  investment company under
     Subchapter M of the Internal Revenue Code of 1986, as amended,  referred to
     as the Code. In compliance  with the Code,  the Fund will not be subject to
     federal  income  tax on its net  investment  income and net  capital  gains
     distributed to shareholders. Net capital gains are those gains in excess of
     capital losses.

     Shareholder   -  Dividends   from   taxable  net   investment   income  and
     distributions  of net short-term  capital gains are taxable to shareholders
     as ordinary income, whether received in cash or

                                                                            11

<PAGE>

     reinvested in additional  shares.  A portion of these dividends may qualify
     for the 70% dividends received deduction available to corporations.

     Regardless   of  the  length  of  time  you  have  held  the  Fund  shares,
     distributions  of net  long-term  capital  gains are  taxable as  long-term
     capital gains whether received in cash or reinvested in additional shares.

     Redemptions,  including exchanges,  are subject to income tax, based on the
     difference between the cost of shares when purchased and the price received
     upon redemption or exchange.

     Withholding  - Federal law  requires  the Fund to withhold and remit to the
     U.S.   Treasury  a  portion  of  the  income  dividends  and  capital  gain
     distributions  and  proceeds  of  redemptions  paid  to  any  non-corporate
     shareholder who:

     * fails to furnish the Fund with a correct  tax  identification  number,
     * underreports dividend or interest income, 
     * fails to certify that he is not subject to withholding.

     To  avoid  this   withholding   requirement,   you  must  certify  on  your
     application,  or on a  separate  Form W-9  supplied  by SAS,  that your tax
     identification  number is correct and that you are not currently subject to
     backup withholding.

     Reporting - The Fund will report annually to you information concerning the
     tax status of dividends and distributions for federal income tax purposes.

DESCRIPTION OF SHARES

     The Fund is a series of USAA Mutual Fund, Inc. (Company).  The Company is a
     diversified,  open-end management investment company incorporated under the
     laws of the State of Maryland. The Company is authorized to issue shares of
     common stock of separate series, each of which is commonly referred to as a
     mutual fund. There are ten mutual funds in the Company, including the Fund.
     The  Directors  do not need  shareholder  approval to create an  additional
     mutual fund in the Company.

     The Company does not hold annual or regular  meetings of  shareholders  and
     holds special  meetings only as required by the  Investment  Company Act of
     1940.  The  Directors  may  fill  vacancies  on the  Board or  appoint  new
     Directors if the result is that at least  two-thirds of the Directors  have
     still been elected by  shareholders.  Shareholders  have one vote per share
     (with  proportionate  voting  for  fractional  shares)  regardless  of  the
     relative net asset value of the shares.  If a matter  affects an individual
     fund in the Company,  there will be a separate vote of the  shareholders of
     that specific fund.  Shareholders  collectively holding at least 10% of the
     outstanding shares of the Company may request a shareholder  meeting at any
     time for the purpose of voting to remove one or more of the Directors.  The
     Company will assist communicating to other shareholders about the meeting.


12

<PAGE>

                                   APPENDIX A

                The following is a description of certain types
                      of securities the Fund may purchase:

Convertible Securities
The Fund may invest in convertible securities which are bonds, preferred stocks,
and other  securities  that pay  interest or  dividends  and offer the buyer the
option of converting  the security into common stock.  The value of  convertible
securities  depends partially on interest rate changes and the credit quality of
the issuer.  Because a convertible security affords an investor the opportunity,
through its conversion  feature,  to participate in the capital  appreciation of
the underlying common stock, the value of convertible securities may also change
based on the price of the common stock.

Money Market Instruments
The Fund  will hold a  certain  portion  of its  assets  in  high-quality,  U.S.
dollar-denominated debt securities that have remaining maturities of one year or
less. Such securities may include U.S. Government obligations,  commercial paper
and other short-term corporate obligations, repurchase agreements collateralized
with  U.S.  Government  securities,   and  certificates  of  deposit,   bankers'
acceptances,  bank deposits, and other financial institution obligations.  These
securities may carry fixed or variable interest rates.

Illiquid Securities
The Fund may not invest  more than 15% of the market  value of its net assets in
securities  which are illiquid.  Illiquid  securities are those  securities that
cannot be disposed of in the ordinary course of business in seven days or less.

Forward Currency Contracts
The Fund may hold securities denominated in foreign currencies. As a result, the
value of the securities will be affected by changes in the exchange rate between
the dollar and foreign currencies.  In managing currency exposure,  the Fund may
enter into forward currency  contracts.  A forward currency contract involves an
agreement to purchase or sell a specified currency at a specified future date or
over a specified time period at a price set at the time of the contract.


                                                                            13

<PAGE>

USAA FAMILY OF NO-LOAD MUTUAL FUNDS

     The USAA Family of No-Load Mutual Funds  includes a variety of Funds,  each
     with different  objectives and policies.  In  combination,  these Funds are
     designed  to  provide  you  with  the  opportunity  to  formulate  your own
     investment  program.  You may  exchange any shares you hold in any one USAA
     Fund for shares in any other USAA Fund. For more complete information about
     other Funds in the USAA Family of Funds,  including  charges and  expenses,
     call us for a  Prospectus.  Read it  carefully  before  you  invest or send
     money.

       FUND
    TYPE/NAME                            VOLATILITY

CAPITAL APPRECIATION
Aggressive Growth                        Very high
Emerging Markets(5)                      Very high
Gold(5)                                  Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International(5)                         Moderate to high
S&P 500 Index(1)                         Moderate
Science & Technology                     Very high
World Growth(5)                          Moderate to high
Young Investors Growth                   Moderate to high

ASSET ALLOCATION
Balanced Strategy                        Moderate
Cornerstone Strategy(5)                  Moderate
Growth and Tax Strategy(2)               Moderate
Growth Strategy(5)                       Moderate to high
Income Strategy                          Low to moderate

INCOME -- TAXABLE
GNMA                                     Low to moderate
Income                                   Moderate
Income Stock                             Moderate
Short-Term Bond                          Low

INCOME -- TAX EXEMPT
Long-Term(2)                             Moderate
Intermediate-Term(2)                     Low to moderate
Short-Term2                              Low
State Bond/Income(2), (3)                Moderate

MONEY MARKET
Money Market(4)                          Very low
Tax Exempt Money Market(2), (4)          Very low
Treasury Money Market Trust(4)           Very low
State Money Market(2), (3), (4)          Very low

1 S&P(R)is a trademark of The McGraw-Hill Companies, Inc., and has been licensed
  for use.  The Product is not sponsored, sold or promoted by Standard & Poor's,
  and Standard & Poor's makes no representation regarding the advisability of 
  investing in the Product.

2 Some income may be subject to state or local taxes or the federal alternative
  minimum tax.

3 California, Florida, New York, Texas, and Virginia funds are offered only to
  residents of those states.

4 An investment in a money market fund is neither insured nor guaranteed by the
  U.S. Government and there is no assurance that any of the funds will be able
  to maintain a stable net asset value of $1 per share.

5 Foreign investing is subject to additional risks, such as currency 
  fluctuations, market illiquidity, and political instability.


14

<PAGE>

         If you would like more information about the Fund, you may call
    1-800-531-8181 to request a free copy of the most recent financial report
                           and/or the Fund's Statement
  of Additional Information (SAI), dated August 1, 1997. The SAI has been filed
 with the SEC and is incorporated by reference into this Prospectus (meaning it
                      is legally a part of the Prospectus).

                 Investment Adviser, Underwriter and Distributor
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                          -----------------------------

                                 Transfer Agent
                        USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                          -----------------------------

                                    Custodian
                       State Street Bank and Trust Company
                                  P.O. Box 1713
                           Boston, Massachusetts 02105
                           --------------------------

                              Telephone Assistance
                          Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.

                   For Additional Information on Mutual Funds
                    1-800-531-8181, (in San Antonio) 456-7211
                 For account servicing, exchanges or redemptions
                    1-800-531-8448, (in San Antonio) 456-7202

                        Recorded Mutual Fund Price Quotes
                        24-Hour Service (from any phone)
                    1-800-531-8066, (in San Antonio) 498-8066

                            Mutual Fund TouchLine(R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices:
                    1-800-531-8777, (in San Antonio) 498-8777

                                [USAA EAGLE LOGO]


                       USAA INVESTMENT MANAGEMENT COMPANY
                            9800 FREDERICKSBURG ROAD
                               SAN ANTONIO, TEXAS
                                      78288


30227-0897 USAA with the eagle is registered in U.S. Patent & Trademark Office.

(C) 1997, USAA.  All rights reserved.  RECYCLED PAPER


<PAGE>

                                     Part A



                               Prospectus for the

   
                           Young Investors Growth Fund
    

                               is included herein


<PAGE>


                                                                  Prospectus
                                                              August 1, 1997

[USAA EAGLE LOGO]   USAA
                    YOUNG INVESTORS
                    GROWTH FUND


Shares of this fund are not deposits or other  obligations of, or guaranteed by,
the  USAA  Federal  Savings  Bank,  are not  insured  by the  FDIC or any  other
government  agency,  and are subject to investment risks. The net asset value of
funds of this type will fluctuate from time to time.

As with  other  mutual  funds,  these  securities  have  not  been  approved  or
disapproved  by the  Securities  and Exchange  Commission  (SEC) nor has the SEC
passed upon the accuracy or adequacy of this Prospectus.  Any  representation to
the contrary is a criminal offense.

The  Fund is a  diversified  no-load  mutual  fund  offered  by USAA  Investment
Management Company.  USAA will seek capital appreciation by investing the Fund's
assets in the stocks of  companies  that  provide  goods or services  with which
young people are apt to be familiar. USAA designed the Fund as part of a program
to stimulate interest in long-term investing by young people.

The  USAA  Young Investors Growth Fund  is part of the  USAA  Power  Portfolio,
a  savings  and investment program for young people.




                                TABLE OF CONTENTS
Who Manages the Fund?............................................   2
What is the Investment Objective?................................   2
Will the Value of Your Investment Fluctuate?.....................   2
Is This Fund for You?............................................   2
How Do You Buy?..................................................   2
Fees and Expenses................................................   3
Performance Information..........................................   4
A Word About Risk................................................   4
Fund Investments.................................................   4
Fund Management..................................................   6
Using Mutual Funds in an Investment Program......................   7
How to Invest with Us............................................   8
Important Information About Purchases and Redemptions............   9
Exchanges........................................................  10
Shareholder Information..........................................  11
Description of Shares............................................  12
Appendix A.......................................................  13
USAA Family of No-Load Mutual Funds..............................  14

                                                                              1

<PAGE>

This Prospectus  provides you with information you should know before you invest
in the Fund. Please read it and keep it for future reference.

WHO MANAGES THE FUND?

     USAA  Investment  Management  Company manages the Fund. For easier reading,
     USAA Investment  Management  Company will be referred to as "we" throughout
     the rest of the Prospectus.

WHAT IS THE INVESTMENT OBJECTIVE?

     The Fund's investment objective is long-term capital appreciation. See Fund
     Investments on page 4 for more information.

WILL THE VALUE OF YOUR INVESTMENT FLUCTUATE?

     Yes, it will. The value of your investment will fluctuate with the changing
     market value of the Fund's portfolio.  You may have a gain or loss when you
     sell your shares.

IS THIS FUND FOR YOU?

     This fund might be appropriate as part of your investment portfolio 
if . . .

      * You are interested in learning about investments
      * You are willing to accept moderate to high risk 
      * You are looking for a long-term investment

     This fund may not be appropriate as part of your investment portfolio
 if . . .

      * You need steady income
      * You are unwilling to take greater risk for long-term goals 
      * You may need your money back within five years 
      * You need an investment that provides tax-free income

     If you  feel  this  fund is not the one  for  you,  refer  to page 14 for a
     complete list of the USAA Family of No-Load Mutual Funds.

HOW DO YOU BUY?

     You may make your  initial  investment  directly by mail,  in person or, in
     certain instances,  by telephone.  The minimum initial investment is $3,000
     [$250 for  IRAs] and can be made by check or by wire.  To suit the needs of
     young  people, Uniform  Gifts/Transfers  to Minors Act (UGMA/UTMA) accounts
     may be  opened for  as little as $250,  or if  you  elect  to have  monthly
     electronic investments of at least $25 each, there is no  minimum required 
     to open an account.  There is more information  about how  to purchase Fund
     shares on page 8.

2

<PAGE>

FEES AND EXPENSES

     This  summary  provides  information  to assist  you in  understanding  the
     expenses  you will  bear  directly  or  indirectly  in  connection  with an
     investment in the Fund.

     Shareholder Transaction Expenses

     There are no fees charged to your account when you buy,  sell, or hold Fund
     shares. However, should you request delivery of redemption proceeds by wire
     transfer,  you will be charged a $10 fee.  (Your bank may also charge a fee
     for receiving wires.)

     Annual Fund Operating Expenses

     The Fund pays certain expenses. Unlike shareholder transaction charges, the
     Fund's expenses are not charged  directly to your account,  but instead are
     reflected in the Fund's share price and  dividends.  The figures below have
     been estimated for the Fund's first year of operation and are calculated as
     a percentage of estimated average net assets (ANA).

           Management Fees                           .75%
           12b-1 Fees                               None
           Other Expenses                           1.12%
                                                    ----
           Total Fund Operating Expenses            1.87%
                                                    ====

   * 12b-1 Fees -- Some mutual funds charge these fees to pay for the costs of
     selling Fund shares.

     Example of Effect of Fund Operating Expenses

     You would pay the  following  expenses on a $1,000  investment in the Fund,
     assuming (1) 5% annual return and (2)  redemption at the end of the periods
     shown.


           1 year............................................     $ 19
           3 years...........................................       59

     This example is not a representation  of past or future expenses and actual
     expenses may be greater or less than those shown.



                                                                              3

<PAGE>

PERFORMANCE INFORMATION

                                   (Telephone)
                                  TouchLine(R)
                                 1-800-531-8777
                                      PRESS
                                       (1)
                                      THEN
                                       (1)
                                      THEN
                                    (3)(2)(#)

Please  consider  information  in light of the Fund's  investment  objective and
policies and market  conditions  during the  reported  time  periods.  Remember,
historical  performance is not  representative of the future  performance of the
Fund. The value of your shares may go up or down. For the most current price and
return  information for this Fund, you may call TouchLine(R) at 1-800- 531-8777.
Press 1 for the Mutual Fund Menu,  press 1 again for prices and  returns.  Then,
press 32 followed by the pound sign when asked for a Fund Code.

You may see the  Fund's  total  return  quoted in  advertisements  and  reports.
Standardized  formulas that apply to all mutual funds determine the quotation of
total  return.  Total return is the share price  change  adjusted to account for
reinvested  distributions  of  income  and  capital  gains.  You may  also see a
comparison of the Fund's  performance to that of other mutual funds with similar
investment objectives and to stock or relevant indexes.

A WORD ABOUT RISK

     Portions of this Prospectus describe the risks you will face as an investor
     in the Fund. It is important to keep in mind that  generally the higher the
     risk of losing money, the higher the potential reward.  The reverse,  also,
     is generally  true:  the lower the risk,  the lower the  potential  reward.
     However,  as you consider an investment  in the Fund,  you should also take
     into account your tolerance for the daily fluctuations of the stock market.

[CAUTION LIGHT]

   Look for this symbol  throughout the Prospectus.  It is used to mark detailed
   information about the main risks that you, as a shareholder of the Fund, will
   face.

FUND INVESTMENTS

     Investment Policies and Risks

     Q   What is the Fund's investment policy?

     A   The Fund's investment objective is long-term capital appreciation.

         We will invest the Fund's assets in equity securities of companies
         that provide goods or services with which young people are apt to be
         familiar. For convenience, this Prospectus refers to common stocks,
         preferred stocks, securities which carry the right to buy common
         stocks, and convertible securities as "equity securities." Most of the
         Fund's assets will be invested in U.S. securities; however, the Fund
         may also invest in foreign securities when we consider them to be in
         line with the Fund's investment objective.
4

<PAGE>

         We designed  the Fund as part of a program to  stimulate  interest in
         long-term investing by young people. We encourage  shareholders of the
         Fund to give us their  suggestions  about the types of companies  that
         they would like us to consider for  investment  by the Fund. We invite
         shareholders  to tell us the investment  topics or the names of stocks
         that they would like us to  feature  in the Fund's  communications  to
         shareholders.

         As a temporary  defensive  measure,  the Fund may invest up to 100% of
         its assets in high-quality, short-term debt instruments.

     Q   In what industries will the Fund likely invest?

     A   The Fund will invest in many different industries.  The Fund is not a
         "sector" fund that focuses its investments in a specific industry or
         sector of the economy. We believe that goods or services that are 
         likely to be familiar to young investors are provided by companies
         engaged in many different types of industries. Such companies may 
         include computer hardware and software manufacturers, Internet service
         providers, and companies in the apparel, automobile, communications,
         entertainment, financial services, health services, and travel
         industries, among others. We believe that the flexibility to select
         equity securities of companies across a broad universe of industries
         maximizes our opportunity to find attractive investments as we pursue
         the Fund's objective of long-term capital appreciation.

     Q   What special services are provided to shareholders in this Fund?

     A   In addition to  providing  an  investment  opportunity  for  long-term
         capital   appreciation,    shareholders   will   receive   educational
         information  targeted  to young  people  about the basic  concepts  of
         saving and investing.

     Q   What are the Fund's potential risks?

     A   Two potential risks involved in investing in this Fund include:

[CAUTION LIGHT]

    Market Risk. As a mutual fund  investing in equity  securities,  the Fund is
    subject to the risk that stock  prices in general will decline over short or
    even extended periods. The stock market tends to run in cycles, with periods
    when stock prices generally go up and periods when stock prices generally go
    down. Equity securities tend to go up and down more than bonds.

[CAUTION LIGHT]

    Foreign Investing.  There are certain risks involved in investing in foreign
    securities that are not in U.S. securities.  Some of these risks may include
    currency exchange rate fluctuations,  foreign market illiquidity,  increased
    price volatility,  exchange control  regulations,  foreign ownership limits,
    different   accounting,   reporting   and   disclosure   requirements,   and
    difficulties  in  obtaining   judgments.   In  the  past,  equity  and  debt
    instruments of foreign  markets have been more volatile than equity and debt
    instruments of U.S. securities markets.

    For  additional  information  about other  investments in which the Fund may
    invest, see Appendix A on page 13.



                                                                              5

<PAGE>

    Investment Restrictions

    The following restrictions may only be changed with shareholder approval:

     *   The Fund may not invest more than 25% of its total assets in one
         industry.

     *   The Fund may not  invest  more than 5% of its  total  assets in any one
         issuer or own more than 10% of the outstanding voting securities of any
         one  issuer.   This  limitation  does  not  apply  to  U.S.  Government
         securities, and only applies to 75% of the Fund's total assets.

     *   The Fund may borrow  only for  temporary  or  emergency  purposes in an
         amount not exceeding 33 1/3% of its total assets.

     You will find a complete listing of the precise investment  restrictions in
     the Fund's Statement of Additional Information (SAI).

FUND MANAGEMENT

     The Board of Directors of USAA Mutual Fund,  Inc.  (Company),  of which the
     Fund is a series,  supervises  the  business  affairs of the  Company.  The
     Company has  retained us to serve as the  manager  and  distributor  of the
     Company.

     We are an affiliate of United Services  Automobile  Association  (USAA),  a
     large,  diversified financial services institution.  As of the date of this
     Prospectus,  we had  approximately  $___  billion  in  total  assets  under
     management. Our mailing address is 9800 Fredericksburg Rd., San Antonio, TX
     78288.

     We provide management services to the Fund. We are responsible for managing
     the Fund's  portfolio  (including  placement of  brokerage  orders) and its
     business affairs,  subject to the authority of and supervision by the Board
     of Directors.  For our  services,  the Fund pays us an annual fee. The fee,
     which is  three-fourths  of one percent (.75%) of ANA, accrues daily and is
     paid  monthly.  This fee is higher than that  charged to most other  mutual
     funds,  but in our opinion,  is  comparable to fees charged to other mutual
     funds with similar investment objectives and policies.

     In addition to the fees paid pursuant to the Advisory Agreement, the Fund's
     operating  expenses  generally  consist of  expenses  for the  issuing  and
     redeeming of Fund shares,  transfer agent and custodian  charges,  auditing
     and legal expenses,  certain expenses of registering and qualifying  shares
     for sale, fees of Directors who are not interested (not affiliated) persons
     of us, and costs of typesetting, printing, and mailing the Prospectus, SAI,
     and periodic reports to existing shareholders.

     We  also  provide  distribution   services  to  the  Fund  and  receive  no
     compensation for those services.

     Our officers and employees,  as well as those of the Company, may engage in
     personal securities transactions subject to restrictions and procedures set
     forth in the Joint Code of Ethics adopted by the Company and us.

6

<PAGE>

     Portfolio Transactions

     USAA  Brokerage  Services,  our  discount  brokerage  service,  may execute
     purchases  and sales of equity  securities  for the Fund's  portfolio.  The
     Board of Directors has adopted  procedures  to ensure that any  commissions
     paid to USAA Brokerage Services are reasonable and fair.

     Portfolio Manager

     The following individual is primarily responsible for managing the Fund.

     Curt  Rohrman,   Assistant  Vice  President  of  Equity  Investments  since
     September  1996,  is the  portfolio  manager.  He has ten years  investment
     management experience and has worked for us for two years. Prior to joining
     us, Mr.  Rohrman worked for CS First Boston  Corporation  from June 1988 to
     March 1995. He earned the Chartered  Financial Analyst (CFA) designation in
     1991 and is a member  of the  Association  for  Investment  Management  and
     Research  (AIMR)  and the San  Antonio  Financial  Analysts  Society,  Inc.
     (SAFAS).  He holds an MBA from the  University of Texas at Austin and a BBA
     from Texas Christian University.


[PHOTOGRAPH OF PORTFOLIO MANAGER]
     Curt Rohrman

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

     I. The Idea Behind Mutual Funds

     Mutual funds were  conceived  as a vehicle that could give small  investors
     some of the advantages  enjoyed by wealthy  investors.  A relatively  small
     investment buys part of a diversified portfolio.  That portfolio is managed
     by investment  professionals,  relieving you of the need to make individual
     stock  or bond  selections.  You  also  enjoy  conveniences,  such as daily
     pricing,  liquidity,  and in the case of the USAA Family of Funds, no sales
     charge. The portfolio,  because of its size, has lower transaction costs on
     its  trades  than most  individuals  would  have.  As a result,  you own an
     investment  that in earlier  times would have been  available  only to very
     wealthy people.

     II.  Using Funds in an Investment Program

     In choosing a mutual fund as an investment vehicle,  you are giving up some
     investment  decisions,  but must still make others. The decisions you don't
     have to make are those  involved with choosing  individual  securities.  We
     will  perform  that  function.   In  addition,  we  will  arrange  for  the
     safekeeping of securities,  auditing the annual financial  statements,  and
     daily valuation of the Fund, as well as other functions.

     You,  however,  retain at least part of the  responsibility  for an equally
     important  decision.  This  decision  includes  determining  a portfolio of
     mutual funds that balances your  investment  goals with your  tolerance for
     risk.  It is likely that this decision may involve the use of more than one
     fund of the USAA Family of Funds.


                                                                              7

<PAGE>

     For example,  assume you wished to invest in a  widely-diversified,  common
     stock portfolio. You could include the Aggressive Growth Fund, Growth Fund,
     Growth & Income  Fund,  Income  Stock  Fund, and  Science & Technology Fund
     in such a portfolio. This portfolio would include stocks of large and small
     companies,  high-dividend stocks, and  growth stocks. This is  just one way
     you could combine funds that fit your own risk and reward goals.

     III.  USAA's Family of Funds

     We offer you another  alternative in our asset strategy  funds,  the Income
     Strategy, Growth and Tax Strategy, Balanced Strategy, Cornerstone Strategy,
     and  Growth   Strategy   Funds.   These  unique   mutual  funds  provide  a
     professionally  managed  diversified  investment  portfolio within a mutual
     fund.  They are  designed  for the  individual  who prefers to delegate the
     asset  allocation  process to an investment  manager and are  structured to
     achieve diversification across a number of investment categories.

     Whether  you  prefer to create  your own mix of mutual  funds or use a USAA
     Asset  Strategy  Fund,  the USAA Family of Funds  provides a broad range of
     choices covering just about any investor's investment objectives. Our sales
     representatives  stand ready to inform you of your  choices and to help you
     craft a portfolio which meets your needs.

HOW TO INVEST WITH US

     Purchase of Shares

     Opening an Account

     You may  open an  account  and  make an  investment  by  mail,  bank  wire,
     electronic funds transfer (EFT),  phone, or in person.  A complete,  signed
     application is required for each new account.  See your Investor's Guide to
     USAA Mutual Fund Services for additional purchase information.

     Tax ID Number

     Each shareholder named on the account must provide a social security number
     or tax identification number to avoid possible withholding requirements.

     Effective Date

     When you make a purchase,  your purchase  price will be the net asset value
     (NAV) per share next  determined  after we receive  your  request in proper
     form.  The Fund's NAV is  determined  at the close of the  regular  trading
     session  (generally 4:00 p.m.  Eastern Time) of the New York Stock Exchange
     (NYSE) each day on which the  Exchange is open.  If we receive your request
     prior  to that  time,  your  purchase  price  will  be the  NAV  per  share
     determined for that day. If we receive your request after the time at which
     the NAV per share is calculated, the purchase will be effective on the next
     business day. If you plan to purchase Fund shares with a foreign check,  we
     suggest you convert your foreign check to U.S.  dollars prior to investment
     in the  Fund to  avoid  a  potential  delay  in the  effectiveness  of your
     purchase  of up to four to six  weeks.  Furthermore,  a bank  charge may be
     assessed in the clearing process, which will be deducted from the amount of
     the purchase.


8

<PAGE>

     MINIMUM INVESTMENTS

     Initial Purchase:         $3,000 [$250 Uniform Gifts/Transfers to Minors
                               Act (UGMA/UTMA) accounts and $250 for IRAs] or if
                               you elect to have monthly electronic investments
                               of at least $25 each, there is no minimum
                               required to open an account.

     Additional Purchases:     $25

     Redemption of Shares

     You may redeem Fund shares by written, fax, telegraph, or telephone request
     on any day the NAV per share is calculated.  Redemptions  will be effective
     on the day on which  instructions  are received and accepted.  However,  if
     instructions  are received after the NAV per share  calculation  (generally
     4:00 p.m. Eastern Time),  redemption will be effective on the next business
     day.

     Telephone  redemption is  automatically  established when you complete your
     application.  The Fund will employ  reasonable  procedures  to confirm that
     instructions  communicated by telephone are genuine, and if it does not, it
     may  be  liable  for  any  losses  due  to   unauthorized   or   fraudulent
     instructions.  Before any discussion  regarding your account, we obtain the
     following  information:  (1) USAA number or account number, (2) the name(s)
     on  the  account  registration,  and  (3)  social  security  number  or tax
     identification number for the account registration.  In addition, we record
     all telephone  communications  with you and send  confirmations  of account
     transactions to the address of record.

     Within seven days after the  effective  date of  redemption,  we distribute
     proceeds.  Payment for  redemption of shares purchased by check or EFT will
     not  be disbursed until  the purchase check or EFT has cleared, which could
     take  up  to  15 days  from  the  purchase  date. If  you  are  considering
     redeeming shares  soon after purchase, you should purchase by  bank wire or
     certified check to avoid delay.

     In addition,  the Company may elect to suspend the  redemption of shares or
     postpone the date of payment in limited circumstances.

     See your  Investor's  Guide to USAA Mutual  Fund  Services  for  additional
     information on redemption of shares and methods of payment.

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

     Account Balance

     The Board of  Directors  may cause the  redemption  of an account with less
     than 10 shares, subject to certain limitations.

     Beginning in September 1998, and occurring each September thereafter,  USAA
     Shareholder  Account Services (SAS), the Fund's transfer agent, will assess
     a small  balance  account  fee of $12 to each  shareholder  account  with a
     balance,  at the time of  assessment,  of less  than  $2,000.  The fee will
     reduce total transfer agency fees paid by the Fund to SAS.  Accounts exempt
     from the

                                                                              9

<PAGE>

     fee include:  (1) any account regularly  purchasing  additional shares each
     month  through an automatic  investment  plan;  (2) any account  registered
     under the Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA);  (3) all (non
     IRA) money market fund accounts; (4) any account whose registered owner has
     an aggregate  balance of $50,000 or more invested in USAA mutual funds; and
     (5) all IRA accounts (for the first year the account is open).

     Company Rights

     The Company reserves the right to:

     *   reject purchase or exchange orders when in the best interest of the
         Company;

     *   limit or discontinue the offering of shares of any portfolio of the
         Company without notice to the shareholders;

     *   impose a redemption charge of up to 1% of the net asset value of shares
         redeemed  if  circumstances  indicate  a charge  is  necessary  for the
         protection  of  remaining   investors   (for   example,   if  excessive
         market-timing  share activity  unfairly burdens  long-term  investors);
         provided, however, this 1% charge will not be imposed upon shareholders
         unless authorized by the Board of Directors and the required notice has
         been given to shareholders;

     *   require a signature guarantee for purchases, redemptions, or changes in
         account  information in those instances where the  appropriateness of a
         signature authorization is in question. The SAI contains information on
         acceptable guarantors.

     Other Information

     For  information  on  automatic  investment  plans  as well as  shareholder
     statements  and  reports,  please  refer to your  Investor's  Guide to USAA
     Mutual Fund Services.

EXCHANGES

     Exchange Privilege

     The exchange privilege is automatic when you complete your application. You
     may exchange  shares among Funds in the USAA Family of Funds,  provided you
     do not hold these shares in stock  certificate  form and that the shares to
     be acquired are offered in your state of residence. SAS will simultaneously
     process  exchange  redemptions  and  purchases  at the  share  prices  next
     determined  after the exchange  order is received.  For federal  income tax
     purposes,  an exchange  between Funds is a taxable event,  and as such, you
     may realize a capital gain or loss.

     The Fund has undertaken certain procedures regarding telephone
     transactions.  See Redemption of Shares.

     Exchange Limitations, Excessive Trading

     To minimize Fund costs and to protect the Funds and their shareholders from
     unfair expense burdens, the Funds restrict excessive  exchanges.  The limit
     on  exchanges  out of any Fund in the USAA Family of Funds for each account
     is six per calendar year (except that there is no

10

<PAGE>

     limitation on exchanges out of the Tax Exempt  Short-Term Fund,  Short-Term
     Bond Fund, or any of the money market funds in the USAA Family of Funds).

SHAREHOLDER INFORMATION

     Share Price Calculation

     The price at which shareholders purchase and redeem fund shares is equal to
     the NAV per share  determined  on the  effective  date of the  purchase  or
     redemption.

     When

     The Fund's NAV per share is calculated at the close of the regular  trading
     session of the NYSE,  which is usually 4:00 p.m.  Eastern Time. You may buy
     and sell Fund shares at the NAV per share without a sales charge.

     How

     The NAV per share is calculated by adding the value of all  securities  and
     other assets in the Fund, deducting liabilities, and dividing by the number
     of shares outstanding.

     Dividends and Distributions

     Net investment  income  distributions  occur yearly.  Any net capital gains
     distribution  usually  occurs within 45 days of the July 31 fiscal year end
     which would be somewhere around the middle of September. The Fund will make
     additional  distributions,  if  necessary,  to avoid the  imposition of any
     federal income or excise tax.

     All income  dividends  and capital  gain  distributions  are  automatically
     reinvested,  unless we receive  different  instructions from you. The share
     price will be the NAV of the Fund shares computed on the ex-dividend  date.
     Any income  dividend or capital  gain  distributions  paid by the Fund will
     reduce the NAV per share by the  amount of the  dividend  or  distribution.
     These distributions are subject to taxes.

     We will invest any dividend or distribution  payment returned to us in your
     account at the then-current NAV per share. Dividend and distribution checks
     become void six months from the date on the check. The amount of the voided
     check will be  invested  in the your  account at the  then-current  NAV per
     share.

     Federal Taxes

     This tax  information is quite general and refers to the federal income tax
     provisions  in  effect  as of the date of this  Prospectus.  We urge you to
     consult  your own tax adviser  about the status of  distributions  from the
     Fund in your own state and locality.

     Fund - The Fund intends to qualify as a regulated  investment company under
     Subchapter M of the Internal Revenue Code of 1986, as amended,  referred to
     as the Code. In compliance  with the Code,  the Fund will not be subject to
     federal  income  tax on its net  investment  income and net  capital  gains
     distributed to shareholders. Net capital gains are those gains in excess of
     capital losses.

                                                                             11

<PAGE>

     Shareholder   -  Dividends   from   taxable  net   investment   income  and
     distributions  of net short-term  capital gains are taxable to shareholders
     as ordinary  income,  whether  received in cash or reinvested in additional
     shares.  A portion of these  dividends  may qualify  for the 70%  dividends
     received deduction available to corporations.

     Regardless   of  the  length  of  time  you  have  held  the  Fund  shares,
     distributions  of net  long-term  capital  gains are  taxable as  long-term
     capital gains whether received in cash or reinvested in additional shares.

     Redemptions,  including exchanges,  are subject to income tax, based on the
     difference between the cost of shares when purchased and the price received
     upon redemption or exchange.

     Withholding  - Federal law  requires  the Fund to withhold and remit to the
     U.S.   Treasury  a  portion  of  the  income  dividends  and  capital  gain
     distributions  and  proceeds  of  redemptions  paid  to  any  non-corporate
     shareholder who:

     * fails to furnish the Fund with a correct  tax  identification  number,
     * underreports dividend or interest income, 
     * fails to certify that he is not subject to withholding.

     To  avoid  this   withholding   requirement,   you  must  certify  on  your
     application,  or on a  separate  Form W-9  supplied  by SAS,  that your tax
     identification  number is correct and that you are not currently subject to
     backup withholding.

     Reporting - The Fund will report annually to you information concerning the
     tax status of dividends and distributions for federal income tax purposes.

DESCRIPTION OF SHARES

     The Fund is a series of USAA Mutual Fund, Inc. (Company).  The Company is a
     diversified,  open-end management investment company incorporated under the
     laws of the State of Maryland. The Company is authorized to issue shares of
     common stock of separate series, each of which is commonly referred to as a
     mutual fund. There are ten mutual funds in the Company, including the Fund.
     The  Directors  do not need  shareholder  approval to create an  additional
     mutual fund in the Company.

     The Company does not hold annual or regular  meetings of  shareholders  and
     holds special  meetings only as required by the  Investment  Company Act of
     1940.  The  Directors  may  fill  vacancies  on the  Board or  appoint  new
     Directors if the result is that at least  two-thirds of the Directors  have
     still been elected by  shareholders.  Shareholders  have one vote per share
     (with  proportionate  voting  for  fractional  shares)  regardless  of  the
     relative net asset value of the shares.  If a matter  affects an individual
     fund in the Company,  there will be a separate vote of the  shareholders of
     that specific fund.  Shareholders  collectively holding at least 10% of the
     outstanding shares of the Company may request a shareholder  meeting at any
     time for the purpose of voting to remove one or more of the Directors.  The
     Company will assist communicating to other shareholders about the meeting.


12

<PAGE>

                                   APPENDIX A

                    The following is a description of certain
                   types of securities the Fund may purchase:


Convertible Securities
The Fund may invest in convertible securities which are bonds, preferred stocks,
and other  securities  that pay  interest or  dividends  and offer the buyer the
option of converting  the security into common stock.  The value of  convertible
securities  depends partially on interest rate changes and the credit quality of
the issuer.  Because a convertible security affords an investor the opportunity,
through its conversion  feature,  to participate in the capital  appreciation of
the underlying common stock, the value of convertible securities may also change
based on the price of the common stock.

Money Market Instruments
The Fund  will hold a  certain  portion  of its  assets  in  high-quality,  U.S.
dollar-denominated debt securities that have remaining maturities of one year or
less. Such securities may include U.S. Government obligations,  commercial paper
and other short-term corporate obligations, repurchase agreements collateralized
with  U.S.  Government  securities,   and  certificates  of  deposit,   bankers'
acceptances,  bank deposits, and other financial institution obligations.  These
securities may carry fixed or variable interest rates.

Illiquid Securities
The Fund may not invest  more than 15% of the market  value of its net assets in
securities  which are illiquid.  Illiquid  securities are those  securities that
cannot be disposed of in the ordinary course of business in seven days or less.

Forward Currency Contracts
The Fund may hold securities denominated in foreign currencies. As a result, the
value of the securities will be affected by changes in the exchange rate between
the dollar and foreign currencies.  In managing currency exposure,  the Fund may
enter into forward currency  contracts.  A forward currency contract involves an
agreement to purchase or sell a specified currency at a specified future date or
over a specified time period at a price set at the time of the contract.





                                                                             13

<PAGE>

USAA FAMILY OF NO-LOAD MUTUAL FUNDS

     The USAA Family of No-Load Mutual Funds  includes a variety of Funds,  each
     with different  objectives and policies.  In  combination,  these Funds are
     designed  to  provide  you  with  the  opportunity  to  formulate  your own
     investment  program.  You may  exchange any shares you hold in any one USAA
     Fund for shares in any other USAA Fund. For more complete information about
     other Funds in the USAA Family of Funds,  including  charges and  expenses,
     call us for a  Prospectus.  Read it  carefully  before  you  invest or send
     money.

       FUND
    TYPE/NAME                            VOLATILITY

CAPITAL APPRECIATION
Aggressive Growth                        Very high
Emerging Markets(5)                      Very high
Gold(5)                                  Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International(5)                         Moderate to high
S&P 500 Index(1)                         Moderate
Science & Technology                     Very high
World Growth(5)                          Moderate to high
Young Investors Growth Fund              Moderate to high

ASSET ALLOCATION
Balanced Strategy                        Moderate
Cornerstone Strategy(5)                  Moderate
Growth and Tax Strategy(2)               Moderate
Growth Strategy(5)                       Moderate to high
Income Strategy                          Low to moderate

INCOME -- TAXABLE
GNMA                                     Low to moderate
Income                                   Moderate
Income Stock                             Moderate
Short-Term Bond                          Low

INCOME - TAX EXEMPT
Long-Term(2)                             Moderate
Intermediate-Term(2)                     Low to moderate
Short-Term2                              Low
State Bond/Income(2), (3)                Moderate

MONEY MARKET
Money Market(4)                          Very low
Tax Exempt Money Market(2), (4)          Very low
Treasury Money Market Trust(4)           Very low
State Money Market(2), (3), (4)          Very low

1 S&P(R)is a trademark of The McGraw-Hill Companies, Inc., and has been licensed
  for use.  The Product is not sponsored, sold or promoted by Standard & Poor's,
  and Standard & Poor's makes no representation regarding the advisability of 
  investing in the Product.

2 Some income may be subject to state or local taxes or the federal alternative
  minimum tax.

3 California, Florida, New York, Texas, and Virginia funds are offered only to
  residents of those states.

4 An investment in a money market fund is neither insured nor guaranteed by the
  U.S. Government and there is no assurance that any of the funds will be able
  to maintain a stable net asset value of $1 per share.

5 Foreign investing is subject to additional risks, such as currency 
  fluctuations, market illiquidity, and political instability.


14

<PAGE>

         If you would like more information about the Fund, you may call
    1-800-531-8181 to request a free copy of the most recent financial report
                           and/or the Fund's Statement
  of Additional Information (SAI), dated August 1, 1997. The SAI has been filed
 with the SEC and is incorporated by reference into this Prospectus (meaning it
                      is legally a part of the Prospectus).

                 Investment Adviser, Underwriter and Distributor
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                          -----------------------------

                                 Transfer Agent
                        USAA Shareholder Account Services
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                          -----------------------------

                                    Custodian
                       State Street Bank and Trust Company
                                  P.O. Box 1713
                           Boston, Massachusetts 02105
                           --------------------------

                              Telephone Assistance
                          Call toll free - Central Time
                     Monday - Friday 8:00 a.m. to 8:00 p.m.
                        Saturdays 8:30 a.m. to 5:00 p.m.

                   For Additional Information on Mutual Funds
                    1-800-531-8181, (in San Antonio) 456-7211
                 For account servicing, exchanges or redemptions
                    1-800-531-8448, (in San Antonio) 456-7202

                        Recorded Mutual Fund Price Quotes
                        24-Hour Service (from any phone)
                    1-800-531-8066, (in San Antonio) 498-8066

                            Mutual Fund TouchLine(R)
                          (from Touchtone phones only)
              For account balance, last transaction or fund prices:
                    1-800-531-8777, (in San Antonio) 498-8777

                                [USAA EAGLE LOGO]


                       USAA INVESTMENT MANAGEMENT COMPANY
                            9800 FREDERICKSBURG ROAD
                               SAN ANTONIO, TEXAS
                                      78288


30228-0897 USAA with the eagle is registered in U.S. Patent & Trademark Office.

(C) 1997, USAA.  All rights reserved.  RECYCLED PAPER

<PAGE>

                                     Part B




                   Statement of Additional Information for the


   
            Science & Technology Fund and Young Investors Growth Fund


                               is included herein

                  Not included in this Post-Effective Amendment
               is the Statement of Additional Information for the
           Aggressive Growth Fund, Growth Fund, Growth & Income Fund,
                Income Stock Fund, Income Fund, Short-Term Bond,
                    S&P 500 Index Fund, and Money Market Fund
    


<PAGE>

[USAA EAGLE LOGO]   USAA                               STATEMENT OF
                    MUTUAL                             ADDITIONAL INFORMATION
                    FUND, INC.                         August 1, 1997

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



                             USAA MUTUAL FUND, INC.


USAA MUTUAL FUND, INC. (the Company) is a registered investment company offering
shares of ten no-load mutual funds, two of which are described in this Statement
of Additional  Information  (SAI):  the Science & Technology  Fund and the Young
Investors  Growth Fund  (collectively,  the  Funds).  Each  Fund  is  classified
as a  diversified  investment  company  and has  its  own  investment  objective
designed  to meet different investment goals.

You may obtain a free copy of a Prospectus for either Fund dated August 1, 1997,
by writing to USAA Mutual Fund, Inc., 9800  Fredericksburg  Rd., San Antonio, TX
78288, or by calling toll free 1-800-531-8181. The Prospectus provides the basic
information  you should know before  investing  in each Fund.  This SAI is not a
Prospectus  and contains  information in addition to and more detailed than that
set  forth  in each  Fund's  Prospectus.  It is  intended  to  provide  you with
additional  information  regarding the  activities and operations of the Company
and the Funds and should be read in conjunction with each Fund's Prospectus.


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



                                TABLE OF CONTENTS



       Page
           2   Valuation of Securities
           2   Additional Information Regarding Redemption of Shares
           3   Investment Plans
           4   Investment Policies
           6   Investment Restrictions
           7   Portfolio Transactions
           8   Further Description of Shares
           8   Tax Considerations
           9   Directors and Officers of the Company
          12   The Company's Manager
          13   General Information
          13   Calculation of Performance Data
          14   Appendix A - Long-Term and Short-Term Debt Ratings
          18   Appendix B - Comparison of Portfolio Performance
          20   Appendix C - Dollar-Cost Averaging


<PAGE>

                             VALUATION OF SECURITIES

Shares of each Fund are offered on a continuing  best efforts basis through USAA
Investment  Management  Company  (IMCO or the Manager).  The offering  price for
shares of each Fund is equal to the current net asset value (NAV) per share. The
NAV per  share  of each  Fund is  calculated  by  adding  the  value  of all its
portfolio securities and other assets,  deducting its liabilities,  and dividing
by the number of shares outstanding.

      Each Fund's NAV per share is calculated  each day,  Monday through Friday,
except days on which the New York Stock Exchange  (NYSE) is closed.  The NYSE is
currently  scheduled  to be closed on New  Year's  Day,  Presidents'  Day,  Good
Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving,  and Christmas,
and on the  preceding  Friday or  subsequent  Monday when one of these  holidays
falls on a Saturday or Sunday, respectively.

      The value of the  securities  of each Fund is determined by one or more of
the following methods:

 (1)  Portfolio  securities,  except as otherwise  noted,  traded primarily on a
      domestic  securities  exchange  are valued at the last sales price on that
      exchange.  Portfolio  securities  traded  primarily on foreign  securities
      exchanges are generally valued at the closing values of such securities on
      the exchange where primarily  traded.  If no sale is reported,  the latest
      bid price is generally used depending upon local custom or regulation.

 (2)  Over-the-counter  securities are priced at the last sales price or, if not
      available,  at the average of the bid and asked prices at the time trading
      closes on the NYSE.

 (3)  Debt securities purchased with maturities of 60 days or less are stated at
      amortized cost which approximates market value.  Repurchase agreements are
      valued at cost.

 (4)  Other debt securities may be valued each business day by a pricing service
      (the  Service)  approved by the Board of  Directors.  The Service uses the
      mean between  quoted bid and asked prices or the last sales price to price
      securities  when,  in the  Service's  judgment,  these  prices are readily
      available and are  representative  of the securities'  market values.  For
      many  securities,  such  prices are not  readily  available.  The  Service
      generally   prices  those   securities  based  on  methods  which  include
      consideration  of yields or prices of securities  of  comparable  quality,
      coupon,  maturity  and type,  indications  as to values  from  dealers  in
      securities, and general market conditions.

 (5)  Securities  which cannot be valued by the methods set forth above, and all
      other  assets,  are  valued  in good  faith at fair  value  using  methods
      determined  by the Manager under the general  supervision  of the Board of
      Directors.

Securities  trading in foreign  markets  may not take place on all days on which
the NYSE is open.  Further,  trading takes place in various  foreign  markets on
days on which the NYSE is not open. The calculation of each Fund's NAV therefore
may not take place  contemporaneously  with the  determination  of the prices of
securities  held  by  each  Fund.  Events  affecting  the  values  of  portfolio
securities that occur between the time their prices are determined and the close
of normal trading on the NYSE on a day the Fund's NAV is calculated  will not be
reflected in the Fund's NAV,  unless the Manager  determines that the particular
event would materially affect NAV. In such a case, the Fund's Manager, under the
supervision  of  the  Board  of  Directors,  will  use  all  relevant  available
information to determine a fair value for the affected portfolio securities.

              ADDITIONAL INFORMATION REGARDING REDEMPTION OF SHARES

The value of a shareholder's investment at the time of redemption may be more or
less than the cost at purchase, depending on the value of the securities held in
each Fund's portfolio.  Requests for redemption which are subject to any special
conditions,  or which specify an effective  date other than as provided  herein,
cannot be accepted.  A gain or loss for tax purposes may be realized on the sale
of shares, depending upon the price when redeemed.

      The Board of  Directors  may cause the  redemption  of an  account  with a
balance  of less  than 10  shares  of each  Fund  provided  (1) the value of the
account has been  reduced,  for  reasons  other than  market  action,  below the
minimum initial  investment in the Fund at the time of the  establishment of the
account,  (2) the account has remained  below the minimum  level for six months,
and (3) 60 days' prior written  notice of the proposed  redemption has been sent
to the shareholder. Shares will be redeemed at the NAV on the date fixed for

                                        2

<PAGE>

redemption by the Board of Directors.  Prompt payment will be made by mail to
the last known address of the shareholder.

      The  Company  reserves  the right to suspend  the right of  redemption  or
postpone  the date of  payment  (1) for any  periods  during  which  the NYSE is
closed,  (2) when  trading in the  markets  the  Company  normally  utilizes  is
restricted,  or an emergency exists as determined by the SEC so that disposal of
the  Company's  investments  or  determination  of its net  asset  value  is not
reasonably  practicable,  or (3) for such other  periods as the SEC by order may
permit for protection of the Company's shareholders.

      For the mutual  protection  of the investor and the Funds,  a guarantee of
signature  may be required by the Company.  If required,  each  signature on the
account  registration  must be guaranteed.  Signature  guarantees are acceptable
from  FDIC  member  banks,  brokers,  dealers,   municipal  securities  dealers,
municipal  securities  brokers,   government   securities  dealers,   government
securities brokers,  credit unions,  national securities  exchanges,  registered
securities associations, clearing agencies and savings associations. A signature
guarantee for active duty military personnel stationed abroad may be provided by
an officer of the United  States  Embassy or  Consulate,  a staff officer of the
Judge Advocate General, or an individual's commanding officer.

                                INVESTMENT PLANS

The following investment plans are made available by the Company to shareholders
of each Fund. At the time you sign up for any of the following  investment plans
that utilize the electronic funds transfer  service,  you will choose the day of
the month (the  effective  date) on which you would like to  regularly  purchase
shares.  When this day falls on a weekend or holiday,  the  electronic  transfer
will take place on the last  business  day before the  effective  date.  You may
terminate your  participation in a plan at any time. Please call the Manager for
details and necessary forms or applications.

Automatic Purchase of Shares

InveStart(R)  - A low  initial  investment  purchase  plan.  With  this plan the
regular  minimum  initial  investment  amount is  waived if you make an  initial
investment as low as $100 in the Science & Technology  Fund and $25 in the Young
Investors  Growth  Fund  with  subsequent  monthly  additions  of at  least  $50
in the  Science  &  Technology Fund and $25 in  the Young  Investors Growth Fund
through electronic funds transfer from a checking or savings account.

InvesTronic(R)  - The regular purchase of additional  shares through  electronic
funds transfer from a checking or savings  account.  You may invest as little as
$50 per month.

Direct  Purchase  Service - The periodic  purchase of shares through  electronic
funds  transfer  from  an  employer  (including   government   allotments),   an
income-producing  investment,  or an  account  with  a  participating  financial
institution.

Automatic  Purchase  Plan - The  periodic  transfer  of funds  from a USAA money
market fund to purchase  shares in another  non-money  market USAA mutual  fund.
There is a minimum  investment  required for this program of $5,000 in the money
market fund, with a monthly transaction minimum of $50.

Buy/Sell  Service - The  intermittent  purchase or redemption of shares  through
electronic funds transfer to or from a checking or savings account.

      Participation in these automatic  purchase plans will permit a shareholder
to engage in dollar-cost  averaging.  For additional  information concerning the
benefits of dollar-cost averaging, see Appendix C.

Systematic Withdrawal Plan

If a shareholder in a single  investment  account  (accounts in different  Funds
cannot be  aggregated  for this  purpose)  owns shares having a NAV of $5,000 or
more, the  shareholder  may request that enough shares to produce a fixed amount
of money be liquidated from the account monthly or quarterly. The amount of each
withdrawal  must be at least $50. Using the electronic  funds transfer  service,
shareholders  may choose to have withdrawals  electronically  deposited at their
bank or other financial  institution.  They may also elect to have checks mailed
to a designated address.

      Such a plan may be  initiated by  depositing  shares worth at least $5,000
with  the  Transfer  Agent  and  by  completing  a  Systematic  Withdrawal  Plan
application,  which may be  requested  from the  Manager.  The  shareholder  may
terminate  participation  in the plan at any  time.  There is no  charge  to the
shareholder for

                                        3

<PAGE>

withdrawals under the Systematic  Withdrawal Plan. The Company will not bear any
expenses  in  administering  the plan  beyond  the  regular  transfer  agent and
custodian  costs of issuing and redeeming  shares.  Any  additional  expenses of
administering the plan will be borne by the Manager.

      Withdrawals  will be made by redeeming full and  fractional  shares on the
date selected by the shareholder at the time the plan is established. Withdrawal
payments  made under this plan may exceed  dividends and  distributions  and, to
this extent, will involve the use of principal and could reduce the dollar value
of a shareholder's  investment and eventually  exhaust the account.  Reinvesting
dividends and  distributions  helps replenish the account.  Because share values
and  net  investment  income  can  fluctuate,  shareholders  should  not  expect
withdrawals to be offset by rising income or share value gains.

      Each  redemption  of shares  may  result in a gain or loss,  which must be
reported on the shareholder's income tax return. Therefore, a shareholder should
keep an accurate record of any gain or loss on each withdrawal.

Tax-Deferred Retirement Plans

Federal  taxes on current  income may be deferred if an investor  qualifies  for
certain types of retirement programs.  For the convenience of the investor,  the
following plans are made available by the Manager:  IRA (including  SEP/IRA) and
403(b)(7)  accounts.  The minimum  initial  investment in each of these plans is
$250  or  minimum  $100  with  a  minimum  $50  monthly  electronic  investment.
Subsequent  investments  of $50 or more  per  account  may be made at any  time.
Investments may be made in one or any combination of the portfolios described in
the Prospectus of each Fund of USAA Mutual Fund, Inc. and USAA Investment  Trust
(not available in the Growth and Tax Strategy Fund).

      Retirement plan applications for the IRA and 403(b)(7)  programs should be
sent directly to USAA Shareholder Account Services, 9800 Fredericksburg Rd., San
Antonio,  TX 78288.  USAA Federal  Savings  Bank serves as  Custodian  for these
tax-deferred  retirement plans under the programs made available by the Manager.
Applications  for  these  retirement  plans  received  by the  Manager  will  be
forwarded to the Custodian for acceptance.

      An  administrative  fee  of  $20  is  deducted  from  the  proceeds  of  a
distribution   closing  an  account.   Exceptions   to  the  fee  are:   partial
distributions,  total transfer within USAA, and  distributions due to disability
or  death.  This  charge  is  subject  to  change  as  provided  in the  various
agreements. There may be additional charges, as mutually agreed upon between the
investor and the Custodian, for further services requested of the Custodian.

      Each employer or individual establishing a tax-deferred retirement plan is
advised to consult with a tax adviser  before  establishing  the plan.  Detailed
information about the plans may be obtained from the Manager.

                               INVESTMENT POLICIES

The section captioned Fund Investments in each Fund's  Prospectus  describes the
fundamental  investment objective and the investment policies applicable to each
Fund and the following is provided as additional information.

Section 4(2) Commercial Paper and Rule 144A Securities

Each Fund may invest in  commercial  paper  issued in reliance  on the  "private
placement"  exemption  from  registration   afforded  by  Section  4(2)  of  the
Securities Act of 1933 (Section 4(2) Commercial Paper).  Section 4(2) Commercial
Paper is  restricted  as to  disposition  under  the  federal  securities  laws;
therefore,  any resale of Section  4(2)  Commercial  Paper must be effected in a
transaction  exempt from  registration  under the  Securities  Act of 1933 (1933
Act).  Section  4(2)  Commercial  Paper is  normally  resold to other  investors
through or with the  assistance of the issuer or  investment  dealers who make a
market in Section 4(2) Commercial Paper, thus providing liquidity.

      Each Fund may also purchase  restricted  securities eligible for resale to
"qualified  institutional buyers" pursuant to Rule 144A under the 1933 Act (Rule
144A  Securities).  Rule 144A  provides a  non-exclusive  safe  harbor  from the
registration  requirements of the 1933 Act for resales of certain  securities to
institutional investors.


                                        4

<PAGE>

Liquidity Determinations

The Board of Directors has established guidelines pursuant to which Section 4(2)
Commercial Paper, Rule 144A Securities,  and certain  restricted debt securities
that are subject to  unconditional  put or demand  features  exercisable  within
seven days (Restricted Put Bonds) may be determined to be liquid for purposes of
complying with the Funds' investment  restrictions  applicable to investments in
illiquid  securities.  In determining  the liquidity of Section 4(2)  Commercial
Paper and Rule 144A Securities, the Manager will consider the following factors,
among others, established by the Board of Directors: (1) the frequency of trades
and quotes for the  security,  (2) the number of dealers  willing to purchase or
sell the  security  and the  number of other  potential  purchasers,  (3) dealer
undertakings  to make a  market  in the  security,  and (4)  the  nature  of the
security and the nature of the marketplace trades,  including the time needed to
dispose of the security,  the method of soliciting  offers, and the mechanics of
transfer. In determining the liquidity of Restricted Put Bonds, the Manager will
evaluate  the  credit  quality  of the  party  (the Put  Provider)  issuing  (or
unconditionally  guaranteeing  performance on) the  unconditional  put or demand
feature of the  Restricted Put Bond. In evaluating the credit quality of the Put
Provider,  the Manager will consider all factors that it deems indicative of the
capacity of the Put Provider to meet its  obligations  under the  Restricted Put
Bond based upon a review of the Put  Provider's  outstanding  debt and financial
statements and general economic conditions.

      Certain  foreign  securities  (including  Eurodollar  obligations)  may be
eligible  for resale  pursuant  to Rule 144A in the  United  States and may also
trade without restriction in one or more foreign markets. Such securities may be
determined to be liquid based upon these foreign markets without regard to their
eligibility  for resale pursuant to Rule 144A. In such cases,  these  securities
will not be  treated  as Rule 144A  securities  for  purposes  of the  liquidity
guidelines established by the Board of Directors.

Forward Currency Contracts

Each Fund may enter into forward currency  contracts in order to protect against
uncertainty in the level of future foreign exchange rates.

      A forward  contract  involves an  agreement to purchase or sell a specific
currency at a specified  future date or over a specified  time period at a price
set at the time of the contract.  These  contracts are usually  traded  directly
between currency traders (usually large commercial banks) and their customers. A
forward contract generally has no deposit  requirements,  and no commissions are
charged.

      Each  Fund  may  enter  into   forward   currency   contracts   under  two
circumstances.  First,  when the Fund enters into a contract for the purchase or
sale of a security denominated in a foreign currency, it may desire to "lock in"
the U.S.  dollar price of the security.  By entering  into such a contract,  the
Fund will be able to protect  itself  against a possible loss  resulting from an
adverse  change in the  relationship  between  the U.S.  dollar and the  foreign
currency  from the date the  security is  purchased or sold to the date on which
payment is made or received.  Second,  when management of the Fund believes that
the currency of a specific country may deteriorate  relative to the U.S. dollar,
it may enter into a forward  contract  to sell that  currency.  The Fund may not
hedge with  respect to a  particular  currency  for an amount  greater  than the
aggregate  market  value  (determined  at the time of making any sale of forward
currency) of the securities  held in its portfolio  denominated or quoted in, or
bearing a substantial correlation to, such currency.

      The use of forward contracts  involves certain risks. The precise matching
of contract amounts and the value of securities  involved  generally will not be
possible  since the future  value of such  securities  in  currencies  more than
likely will change between the date the contract is entered into and the date it
matures.  The projection of short-term  currency  market  movements is extremely
difficult  and  successful   execution  of  a  short-term  hedging  strategy  is
uncertain.  Under  normal  circumstances,  consideration  of  the  prospect  for
currency   parities  will  be  incorporated  into  the  longer  term  investment
strategies.  The  Manager  believes  it  is  important,  however,  to  have  the
flexibility  to enter into such  contracts  when it determines it is in the best
interest of a Fund to do so. It is  impossible to forecast what the market value
of portfolio securities will be at the expiration of a contract. Accordingly, it
may be  necessary  for the Fund to purchase  additional  currency  (and bear the
expense of such  purchase)  if the market value of the security is less than the
amount of currency a Fund is obligated to deliver,  and if a decision is made to
sell the  security  and make  delivery of the  currency.  Conversely,  it may be
necessary  to sell  some of the  foreign  currency  received  on the sale of the
portfolio  security if its market value  exceeds the amount of currency the Fund
is obligated to deliver.

      Each Fund is not required to enter into such  transactions and will not do
so unless deemed appropriate by the Manager.


                                        5

<PAGE>

      Although  each Fund values its assets each  business  day in terms of U.S.
dollars,  it does not intend to convert its foreign currencies into U.S. dollars
on a daily basis.  It will do so from time to time, and  shareholders  should be
aware of currency  conversion  costs.  Although  foreign exchange dealers do not
charge a fee for  conversion,  they do realize a profit based on the  difference
(spread)  between  the  prices at which  they are  buying  and  selling  various
currencies.  Thus, a dealer may offer to sell a foreign  currency to the Fund at
one rate,  while  offering a lesser rate of  exchange  should the Fund desire to
resell that currency to the dealer.

Convertible Securities

Convertible  securities are bonds,  preferred stocks,  and other securities that
pay  interest  or  dividends  and offer the buyer the option of  converting  the
security  into  common  stock.  The  value  of  convertible  securities  depends
partially on interest rate changes and the credit quality of the issuer. Because
a  convertible  security  affords  an  investor  the  opportunity,  through  its
conversion feature, to participate in the capital appreciation of the underlying
common stock,  the value of convertible  securities may also change based on the
price of the common stock.

      The  convertible  securities  in which each Fund will  invest may be rated
below  investment  grade  as  determined  by  Moody's  Investors  Service,  Inc.
(Moody's) or Standard & Poor's Ratings Group (S&P), or unrated but judged by the
Manager to be of comparable  quality  (commonly  called junk bonds).  For a more
complete description of debt ratings, see Appendix A. Such securities are deemed
to be speculative and involve greater risk of default due to changes in interest
rates,  economic  conditions,  and the issuer's  creditworthiness.  As a result,
their  market  prices tend to  fluctuate  more than  higher-quality  securities.
During periods of general economic  downturns or rising interest rates,  issuers
of such  securities may  experience  financial  difficulties  which could affect
their  ability to make  timely  interest  and  principal  payments.  Each Fund's
ability to timely and accurately  value and dispose of lower quality  securities
may also be affected by the absence or periodic discontinuance of liquid trading
markets.

                             INVESTMENT RESTRICTIONS

The following  investment  restrictions have been adopted by the Company for and
are applicable to each Fund. These restrictions may not be changed for any given
Fund without approval by the lesser of (1) 67% or more of the voting  securities
present  at a  meeting  of the Fund if more than 50% of the  outstanding  voting
securities of the Fund are present or  represented by proxy or (2) more than 50%
of the Fund's outstanding voting securities.

Each Fund may not:

 (1)  With respect to 75% of its total  assets,  purchase the  securities of any
      issuer (except U.S. Government Securities,  as such term is defined in the
      1940 Act) if, as a result,  it would own more than 10% of the  outstanding
      voting  securities  of such  issuer  or it would  have more than 5% of the
      value of its total assets invested in the securities of such issuer.

 (2)  Borrow money,  except for temporary or emergency purposes in an amount not
      exceeding 33 1/3% of its total assets (including the amount borrowed) less
      liabilities (other than borrowings).

 (3)  Concentrate its investments in any one industry  although it may invest up
      to 25% of the value of its total  assets  in any one  industry;  provided,
      this limitation  does not apply to securities  issued or guaranteed by the
      U.S. Government and its agencies or instrumentalities.

 (4)  Issue senior securities, except as permitted under the 1940 Act.

 (5)  Underwrite  securities of other issuers,  except to the extent that it may
      be deemed to act as a statutory  underwriter  in the  distribution  of any
      restricted securities or not readily marketable securities.

 (6)  Lend any securities or make any loan if, as a result, more than 33 1/3% of
      its  total  assets  would  be lent to  other  parties,  except  that  this
      limitation does not apply to purchases of debt securities or to repurchase
      agreements.

      With respect to each Fund's concentration policy as described above and in
its Prospectus,  the Manager uses industry  classifications for industries based
on categories  established by Standard & Poor's Corporation  (Standard & Poor's)
for the  Standard & Poor's 500  Composite  Index,  with  certain  modifications.
Because  the  Manager has  determined  that  certain  categories  within,  or in
addition  to,  those set  forth by  Standard  & Poor's  have  unique  investment
characteristics, additional industries are included as industry classifications.


                                        6

<PAGE>

Additional Restriction

The following  restriction is not considered to be a fundamental  policy of each
Fund.  This  additional  restriction may be changed by the Board of Directors of
the Company without notice to or approval by the shareholders.

Each Fund may not:

 (1)  Purchase any security while borrowings representing more than 5% of the
      Fund's total assets are outstanding.

                             PORTFOLIO TRANSACTIONS

The Manager,  pursuant to the Advisory  Agreement  dated September 21, 1990, and
subject to the general control of the Company's  Board of Directors,  places all
orders for the purchase  and sale of Fund  securities.  In  executing  portfolio
transactions  and selecting  brokers and dealers,  it is the Company's policy to
seek the best overall terms  available.  The Manager shall consider such factors
as it deems relevant,  including the breadth of the market in the security,  the
financial  condition and execution  capability of the broker or dealer,  and the
reasonableness of the commission,  if any, for the specific  transaction or on a
continuing basis.  Securities purchased or sold in the  over-the-counter  market
will be executed through principal market makers, except when, in the opinion of
the Manager, better prices and execution are available elsewhere.

      In the allocation of brokerage business,  preference may be given to those
broker-dealers  who provide  research or other  services  to the  Manager.  Such
research and other  services may include,  for example:  advice  concerning  the
value of securities,  the advisability of investing in,  purchasing,  or selling
securities,  and the  availability of securities or the purchasers or sellers of
securities;  analyses and reports concerning  issuers,  industries,  securities,
economic factors and trends,  portfolio  strategy,  and performance of accounts;
and various functions incidental to effecting securities  transactions,  such as
clearance and settlement.  In return for such services,  a Fund may pay to those
brokers a higher commission than may be charged by other brokers,  provided that
the Manager determines in good faith that such commission is reasonable in terms
of either that particular  transaction or of the overall  responsibility  of the
Manager  to the  Funds and its other  clients.  The  receipt  of  research  from
broker-dealers that execute  transactions on behalf of the Company may be useful
to the Manager in  rendering  investment  management  services to other  clients
(including affiliates of the Manager), and conversely, such research provided by
broker-dealers  who have executed  transaction orders on behalf of other clients
may be useful to the Manager in carrying  out its  obligations  to the  Company.
While such  research is available to and may be used by the Manager in providing
investment advice to all its clients (including affiliates of the Manager),  not
all of such  research may be used by the Manager for the benefit of the Company.
Such  research and  services  will be in addition to and not in lieu of research
and services  provided by the Manager,  and the expenses of the Manager will not
necessarily  be reduced by the receipt of such  supplemental  research.  See The
Company's Manager.

      Securities of the same issuer may be purchased,  held, or sold at the same
time by the Company for any or all of its Funds,  or other accounts or companies
for which the Manager acts as the investment  adviser  (including  affiliates of
the  Manager).  On  occasions  when the Manager  deems the purchase or sale of a
security to be in the best  interest of the  Company,  as well as the  Manager's
other  clients,  the Manager,  to the extent  permitted by  applicable  laws and
regulations,  may  aggregate  such  securities  to be sold or purchased  for the
Company  with  those to be sold or  purchased  for other  customers  in order to
obtain best execution and lower  brokerage  commissions,  if any. In such event,
allocation  of the  securities  so  purchased  or sold,  as well as the expenses
incurred  in the  transaction,  will be made by the  Manager  in the  manner  it
considers to be most equitable and consistent with its fiduciary  obligations to
all such customers, including the Company. In some instances, this procedure may
impact the price and size of the position obtainable for the Company.

Portfolio Turnover Rates

The rate of portfolio  turnover  will not be a limiting  factor when the Manager
deems  changes  in each  Fund's  portfolio  appropriate  in view of each  Fund's
investment  objective.  Although  neither Fund will purchase or sell  securities
solely to  achieve  short-term  trading  profits,  each Fund may sell  portfolio
securities  without  regard to the length of time held if  consistent  with each
Fund's investment objective. A higher degree of portfolio activity will increase
brokerage costs to a Fund.

      The  portfolio  turnover rate is computed by dividing the dollar amount of
securities  purchased  or sold  (whichever  is smaller) by the average  value of
securities  owned during the year.  Short-term  investments  such as  commercial
paper  and  short-term  U.S.  Government  securities  are  not  considered  when
computing the turnover rate.


                                        7

<PAGE>

                          FURTHER DESCRIPTION OF SHARES

The Company is authorized to issue shares in separate series or Funds. Ten Funds
have  been  established,  two of which  are  described  in this  SAI.  Under the
Articles of  Incorporation,  the Board of Directors is  authorized to create new
Funds in addition to those already existing without shareholder approval.

      The assets of each Fund and all income,  earnings,  profits,  and proceeds
thereof,  subject only to the rights of creditors, are specifically allocated to
such Fund. They  constitute the underlying  assets of each Fund, are required to
be segregated  on the books of account,  and are to be charged with the expenses
of such Fund. Any general  expenses of the Company not readily  identifiable  as
belonging  to a  particular  Fund are  allocated  on the  basis  of each  Fund's
relative net assets  during the fiscal year or in such other manner as the Board
determines to be fair and equitable. Each share of each Fund represents an equal
proportionate  interest  in that Fund with every  other share and is entitled to
such  dividends  and  distributions  out of the net  income  and  capital  gains
belonging to that Fund when declared by the Board.

      Under the  provisions of the Bylaws of the Company,  no annual  meeting of
shareholders is required.  Thus, there will ordinarily be no shareholder meeting
unless  required  by  the  1940  Act.  Under  certain  circumstances,   however,
shareholders may apply for shareholder information in order to obtain signatures
to request a special shareholder  meeting.  Moreover,  pursuant to the Bylaws of
the Company,  any Director may be removed by the affirmative  vote of a majority
of the outstanding Company shares; and holders of 25% or more of the outstanding
shares of the Company can require  Directors  to call a meeting of  shareholders
for the purpose of voting on the removal of one or more Directors. On any matter
submitted to the shareholders,  the holder of each Fund share is entitled to one
vote per share (with  proportionate  voting for fractional shares) regardless of
the  relative  net asset  values  of the  Fund's  shares.  However,  on  matters
affecting an individual  Fund, a separate vote of the  shareholders of that Fund
is required. Shareholders of a Fund are not entitled to vote on any matter which
does not affect that Fund but which  requires a separate  vote of another  Fund.
Shares do not have  cumulative  voting rights,  which means that holders of more
than 50% of the shares  voting for the election of  Directors  can elect 100% of
the Company's Board of Directors, and the holders of less than 50% of the shares
voting for the election of  Directors  will not be able to elect any person as a
Director.

      Shareholders of a particular Fund might have the power to elect all of the
Directors  of the  Company  because  that  Fund  has a  majority  of  the  total
outstanding  shares of the Company.  When issued,  each Fund's  shares are fully
paid and  nonassessable,  have no pre-emptive or  subscription  rights,  and are
fully transferable.
There are no conversion rights.

                               TAX CONSIDERATIONS

Each Fund intends to qualify as a regulated  investment company under Subchapter
M of the Internal Revenue Code of 1986, as amended (the Code). Accordingly, each
Fund will not be liable for federal  income taxes on its taxable net  investment
income and net capital gains  (capital  gains in excess of capital  losses) that
are distributed to  shareholders,  provided that each Fund  distributes at least
90% of its net investment income and net short-term capital gain for the taxable
year.

      To qualify as a regulated investment company,  each Fund must, among other
things,  (1) derive in each  taxable  year at least 90% of its gross income from
dividends,  interest,  payments with respect to securities loans, gains from the
sale or other disposition of stock,  securities or foreign currencies,  or other
income  derived  with  respect  to its  business  of  investing  in such  stock,
securities,  or currencies (the 90% test),  (2) derive in each taxable year less
than 30% of its  gross  income  from the sale or other  disposition  of stock or
securities  held less than three months (the 30% test),  and (3) satisfy certain
diversification  requirements at the close of each quarter of the Fund's taxable
year.

      The Code imposes a nondeductible  4% excise tax on a regulated  investment
company that fails to  distribute  during each  calendar year an amount at least
equal  to the  sum of (1)  98% of its  taxable  net  investment  income  for the
calendar  year,  (2) 98% of its  capital  gain net income  for the  twelve-month
period  ending on October 31, and (3) any prior  amounts not  distributed.  Each
Fund intends to make such  distributions as are necessary to avoid imposition of
the excise tax.

      Taxable  distributions  are generally  included in a  shareholder's  gross
income for the taxable year in which they are  received.  Dividends  declared in
October,  November,  or December and made payable to  shareholders  of record in
such a month will be deemed to have been  received on  December  31, if the Fund
pays the dividend  during the  following  January.  If a  shareholder  of a Fund
receives a distribution taxable as long-term capital gain with respect to shares
of a Fund and redeems or exchanges the shares before he has held them for more

                                        8

<PAGE>

than six months,  any loss on the  redemption or exchanges  that is less than or
equal to the amount of the  distribution  will be treated as  long-term  capital
loss.

                      DIRECTORS AND OFFICERS OF THE COMPANY

The Board of Directors  of the Company  consists of seven  Directors.  Set forth
below are the Directors and officers of the Company,  their  respective  offices
and  principal   occupations  during  the  last  five  years.  Unless  otherwise
indicated, the business address of each is 9800 Fredericksburg Rd., San Antonio,
TX 78288.

Robert G. Davis 1, 2
Director and Chairman of the Board of Directors
Age: 50

President,  Chief Executive Officer,  Director and Vice Chairman of the Board of
Directors  of USAA  Capital  Corporation  and  several of its  subsidiaries  and
affiliates (12/96-present);  Director, Vice Chairman,  Executive Vice President,
and  Chief   Operating   Officer,   USAA  Financial   Planning   Network,   Inc.
(9/96-present);  Special  Assistant  to  Chairman,  United  Services  Automobile
Association (USAA) (6/96-12/96); President and Chief Executive Officer, Banc One
Credit Corporation (12/95-6/96); and President and Chief Executive Officer, Banc
One Columbus,  (8/91-12/95).  Mr. Davis also serves as a Trustee and Chairman of
the Board of Trustees of USAA Investment Trust and USAA State Tax-Free Trust and
as a  Director  and  Chairman  of the  Boards of  Directors  of USAA  Investment
Management Company (IMCO),  USAA Tax Exempt Fund, Inc., USAA Shareholder Account
Services, USAA Federal Savings Bank and USAA Real Estate Company.

Michael J.C. Roth 1, 2
Director, President and Vice Chairman of the Board of Directors
Age: 55

Chief Executive  Officer,  IMCO  (10/93-present);  President,  Director and Vice
Chairman  of the Board of  Directors,  IMCO  (1/90-present).  Mr. Roth serves as
President,  Trustee  and  Vice  Chairman  of the  Boards  of  Trustees  of  USAA
Investment Trust and USAA State Tax-Free Trust, as President,  Director and Vice
Chairman  of the Boards of  Directors  of USAA Tax Exempt  Fund,  Inc.  and USAA
Shareholder Account Services,  as Director of USAA Life Insurance Company and as
Trustee and Vice Chairman of USAA Life Investment Trust.

John W. Saunders, Jr. 1, 2, 4
Director and Vice President
Age: 62

Senior Vice President, Investments, IMCO (10/85-present); Director, BHC
Financial, Inc. and BHC Securities, Inc. (1/87-present). Mr. Saunders serves as
Trustee and Vice President of USAA Investment Trust and USAA State Tax-Free
Trust, Director and Vice President of USAA Tax Exempt Fund, Inc., Director of
IMCO, as Senior Vice President of USAA Shareholder Account Services, and as Vice
President of USAA Life Investment Trust.

Barbara B. Dreeben 3, 4, 5
200 Patterson #1008
San Antonio, TX  78209
Director
Age: 52

President, Postal Addvantage (7/92-present); Consultant, Nancy Harkins Stationer
(8/91-12/95). Mrs. Dreeben serves as a Trustee of USAA Investment Trust and USAA
State Tax-Free Trust and as a Director of USAA Tax Exempt Fund, Inc.

Howard L. Freeman, Jr. 2, 3, 4, 5
2710 Hopeton
San Antonio, TX  78230
Director
Age: 62

Retired. Assistant General Manager for Finance, San Antonio City Public Service
Board (1976-1996). Mr. Freeman serves as a Trustee of USAA Investment Trust and
USAA State Tax-Free Trust and as a Director of USAA Tax Exempt Fund, Inc.

                                        9

<PAGE>

Robert L. Mason, Ph.D. 3, 4, 5
12823 Queens Forest
San Antonio, TX  78230
Director
Age: 51

Manager, Statistical Analysis Section, Southwest Research Institute (8/75 -
present). Dr. Mason serves as a Trustee of USAA Investment Trust and USAA State
Tax-Free Trust and as a Director of USAA Tax Exempt Fund, Inc.

Richard A. Zucker 3, 4, 5
407 Arch Bluff
San Antonio, TX  78216
Director
Age: 54

Vice President, Beldon Roofing and Remodeling (1985-present). Mr. Zucker serves
as a Trustee of USAA Investment Trust and USAA State Tax-Free Trust and as a
Director of USAA Tax Exempt Fund, Inc.

Michael D. Wagner 1
Secretary
Age: 49

Vice President,  Corporate  Counsel,  USAA  (1982-present).  Mr. Wagner has held
various  positions in the legal department of USAA since 1970 and serves as Vice
President,  Secretary and Counsel,  IMCO and USAA Shareholder  Account Services,
Secretary, USAA Investment Trust, USAA State Tax-Free Trust, and USAA Tax Exempt
Fund,  Inc.  and as Vice  President,  Corporate  Counsel for various  other USAA
subsidiaries and affiliates.

Alex M. Ciccone 1
Assistant Secretary
Age: 47

Vice  President,  Compliance,  IMCO  (12/94-present);  Vice  President and Chief
Operating Officer,  Commonwealth  Shareholder  Services  (6/94-11/94);  and Vice
President,  Compliance,  IMCO  (12/91-5/94).  Mr.  Ciccone  serves as  Assistant
Secretary of USAA  Investment  Trust,  USAA State Tax-Free  Trust,  and USAA Tax
Exempt Fund, Inc.

Sherron A. Kirk 1
Treasurer
Age: 52

Vice President,  Controller,  IMCO  (10/92-present);  Vice President,  Corporate
Financial  Analysis,  USAA (9/92- 10/92);  Assistant Vice  President,  Financial
Plans and  Support,  USAA  (8/91-9/92).  Mrs.  Kirk serves as  Treasurer of USAA
Investment Trust, USAA State Tax-Free Trust, and USAA Tax Exempt Fund, Inc., and
as Vice President, Controller of USAA Shareholder Account Services.

Dean R. Pantzar 1
Assistant Treasurer
Age: 38

Executive  Director,  Mutual Fund Accounting,  IMCO  (10/95-present);  Director,
Mutual Fund Accounting,  IMCO (12/94-10/95);  Senior Manager,  KPMG Peat Marwick
LLP (7/88-12/94).  Mr. Pantzar serves as Assistant  Treasurer of USAA Investment
Trust, USAA State Tax-Free Trust, and USAA Tax Exempt Fund, Inc.

- -----------------
 1 Indicates  those  Directors  and officers who are employees of the Manager or
   affiliated  companies and are considered  "interested persons" under the 1940
   Act.
 2 Member of Executive Committee
 3 Member of Audit Committee
 4 Member of Pricing and Investment Committee
 5 Member of Corporate Governance Committee


                                       10

<PAGE>

      Between the meetings of the Board of Directors  and while the Board is not
in session, the Executive Committee of the Board of Directors has all the powers
and may exercise all the duties of the Board of Directors in the  management  of
the  business  of the Company  which may be  delegated  to it by the Board.  The
Pricing and  Investment  Committee of the Board of  Directors  acts upon various
investment-related  issues and other matters which have been  delegated to it by
the Board.  The Audit Committee of the Board of Directors  reviews the financial
statements and the auditors' reports and undertakes certain studies and analyses
as directed by the Board.  The  Corporate  Governance  Committee of the Board of
Directors   maintains   oversight   of  the   organization,   performance,   and
effectiveness of the Board and independent Directors.

      In addition to the  previously  listed  Directors  and/or  officers of the
Company  who  also  serve as  Directors  and/or  officers  of the  Manager,  the
following  individuals are Directors and/or  executive  officers of the Manager:
Harry W. Miller, Senior Vice President,  Investments (Equity);  Carl W. Shirley,
Senior Vice  President,  Insurance  Company  Portfolios;  and John J.  Dallahan,
Senior Vice President,  Investment  Services.  There are no family relationships
among the Directors,  officers, and managerial level employees of the Company or
its Manager.

      The following table sets forth information  describing the compensation of
the current  Directors of the Company for their  services as  Directors  for the
fiscal year ended July 31, 1996.

 Name                                  Aggregate             Total Compensation
   of                                 Compensation              from the USAA
Director                            from the Company         Family of Funds (c)
- --------                            ------------------       ------------------
C. Dale Briscoe*                       $2,389                     $   9,700
George E. Brown *(a)                    7,885                        28,900
Barbara B. Dreeben                      6,885                        27,900
Howard L. Freeman, Jr.                  7,885                        28,900
M. Staser Holcomb**                      None (b)                      None (b)
Michael J.C. Roth                        None (b)                      None (b)
John W. Saunders, Jr.                    None (b)                      None (b)
Richard A. Zucker                       7,885                        28,900

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

  *   Effective  January  1, 1996,  C. Dale  Briscoe  retired  from the Board of
      Directors  and effective  December 31, 1996,  George E. Brown retired from
      the Board of Directors.

 **   Effective December 1, 1996, Robert G. Davis replaced M. Staser Holcomb as
      Director and Chairman of the Board of Directors.

(a)   The USAA Family of Funds has accrued  deferred  compensation for Mr. Brown
      in an amount (plus  earnings  thereon) of $21,525.  The  compensation  was
      deferred by Mr. Brown pursuant to a  non-qualified  Deferred  Compensation
      Plan, under which deferred amounts accumulate  interest quarterly based on
      the  annualized  U.S.  Treasury Bill rate in effect on the last day of the
      quarter.  Amounts deferred and accumulated earnings thereon are not funded
      and are general  unsecured  liabilities  of the USAA Funds until paid. The
      Deferred  Compensation Plan was terminated in 1988 and no compensation has
      been  deferred by any  Director/Trustee  of the USAA Family of Funds since
      the Plan was terminated.

(b)   M. Staser Holcomb, Michael J.C. Roth, and John W. Saunders, Jr. are 
      affiliated with the Company's investment adviser, IMCO, and, accordingly,
      receive no remuneration from the Company or any other Fund of the USAA 
      Family of Funds.

(c)   At July 31, 1996,  the USAA Family of Funds  consisted of four  registered
      investment companies offering 33 individual funds. Each Director presently
      serves as a Director  or Trustee  of each  investment  company in the USAA
      Family of Funds.  In addition,  Michael J.C.  Roth  presently  serves as a
      Trustee of USAA Life  Investment  Trust, a registered  investment  company
      advised by IMCO,  consisting of five funds offered to investors in a fixed
      and variable annuity contract with USAA Life Insurance  Company.  Mr. Roth
      receives no compensation as Trustee of USAA Life Investment Trust.

      All of the above Directors are also  Directors/Trustees of the other funds
for which IMCO serves as investment adviser. No compensation is paid by any fund
to any Director/Trustee  who is a director,  officer, or employee of IMCO or its
affiliates.  No  pension  or  retirement  benefits  are  accrued as part of fund
expenses.  The Company  reimburses certain expenses of the Directors who are not
affiliated with the investment adviser.


                                       11

<PAGE>

                              THE COMPANY'S MANAGER

As described in each Fund's  Prospectus,  USAA Investment  Management Company is
the  Manager and  investment  adviser,  providing  services  under the  Advisory
Agreement.  The Manager was  organized in May 1970 and has served as  investment
adviser and underwriter for USAA Mutual Fund, Inc. from its inception.

      In addition to managing  the  Company's  assets,  the Manager  advises and
manages the investments  for USAA and its affiliated  companies as well as those
of USAA Tax Exempt Fund,  Inc., USAA Investment  Trust,  and USAA State Tax-Free
Trust, and USAA Life Investment  Trust. As of the date of this SAI, total assets
under  management by the Manager were  approximately  $_____  billion,  of which
approximately $_____ billion were in mutual fund portfolios.

Advisory Agreement

Under the  Advisory  Agreement,  the  Manager  provides an  investment  program,
carries out the  investment  policy,  and manages the portfolio  assets for each
Fund.  The  Manager  is  authorized,  subject  to the  control  of the  Board of
Directors of the Company, to determine the selection, amount, and time to buy or
sell securities for each Fund. In addition to providing investment services, the
Manager pays for office space,  facilities,  business equipment,  and accounting
services (in addition to those provided by the  Custodian) for the Company.  The
Manager  compensates  all personnel,  officers,  and Directors of the Company if
such  persons are also  employees  of the Manager or its  affiliates.  For these
services under the Advisory Agreement, the Company has agreed to pay the Manager
a fee computed as described  under Fund  Management  in each Fund's  Prospectus.
Management fees are computed and accrued daily and are payable monthly.

      Except for the services and facilities provided by the Manager,  each Fund
pays all other expenses incurred in its operation.  Expenses for which each Fund
is  responsible  includes  taxes (if any),  brokerage  commissions  on portfolio
transactions (if any), expenses of issuance and redemption of shares, charges of
transfer agents,  custodians and dividend disbursing agents,  costs of preparing
and  distributing  proxy  material,   costs  of  printing  and  engraving  stock
certificates,  auditing and legal expenses,  certain expenses of registering and
qualifying  shares for sale,  fees of Directors who are not  interested  persons
(not affiliated) of the Manager, costs of typesetting,  printing and mailing the
Prospectus,  SAI and periodic  reports to existing  shareholders,  and any other
charges  or fees  not  specifically  enumerated.  The  Manager  pays the cost of
printing  and  mailing  copies  of the  Prospectus,  the  SAI,  and  reports  to
prospective shareholders.

      The Advisory Agreement will remain in effect until June 30, 1998, for each
Fund and will continue in effect from year to year thereafter for each such Fund
as long as it is approved at least annually by a vote of the outstanding  voting
securities  of such  Fund  (as  defined  by the  1940  Act) or by the  Board  of
Directors (on behalf of such Fund) including a majority of the Directors who are
not  interested  persons of the Manager or (otherwise  than as Directors) of the
Company,  at a meeting  called for the purpose of voting on such  approval.  The
Advisory  Agreement  may be  terminated at any time by either the Company or the
Manager on 60 days' written notice. It will automatically terminate in the event
of its assignment (as defined in the 1940 Act).

Underwriter

The Company has an agreement  with the Manager for  exclusive  underwriting  and
distribution  of each Fund's  shares on a continuing  best efforts  basis.  This
agreement  provides  that the Manager will receive no fee or other  compensation
for such distribution services.

Transfer Agent

The Transfer  Agent  performs  transfer  agent  services for the Company under a
Transfer Agency Agreement.  Services include  maintenance of shareholder account
records,  handling of  communications  with  shareholders,  distribution of Fund
dividends,  and  production  of reports  with  respect to account  activity  for
shareholders  and the  Company.  For its  services  under  the  Transfer  Agency
Agreement,  USAA  Shareholder  Account  Services is paid an annual fixed fee per
account of $23.50 by each Fund. This fee is subject to change at any time.

      The fee to the Transfer Agent includes  processing of all transactions and
correspondence. Fees are billed on a monthly basis at the rate of one-twelfth of
the annual fee. In addition,  each Fund pays all  out-of-pocket  expenses of the
Transfer Agent and other  expenses which are incurred at the specific  direction
of the Company.


                                       12

<PAGE>

                               GENERAL INFORMATION

Custodian

State Street Bank and Trust Company,  P.O. Box 1713,  Boston,  MA 02105,  is the
Company's  Custodian.  The  Custodian is  responsible  for,  among other things,
safeguarding  and controlling  the Company's cash and  securities,  handling the
receipt and delivery of  securities,  and  collecting  interest on the Company's
investments.

Counsel

Goodwin,  Procter & Hoar LLP,  Exchange  Place,  Boston,  MA 02109,  will review
certain legal matters for the Company in connection  with the shares  offered by
the Prospectus.

Independent Auditors

KPMG Peat Marwick LLP, 112 East Pecan, Suite 2400, San Antonio, TX 78205, is the
Company's  independent  auditor.  In this capacity,  the firm is responsible for
auditing the annual financial statements of each Fund and reporting thereon.

                         CALCULATION OF PERFORMANCE DATA

Information  regarding  total return of each Fund is provided under  Performance
Information  in  its  Prospectus.  See  Valuation  of  Securities  herein  for a
discussion of the manner in which the Funds' price per share is calculated.

Total Return

Each Fund may advertise  performance in terms of average annual total return for
1-, 5-, and 10-year  periods, or for such lesser periods as the Fund has been in
existence. Average annual total return is computed by finding the average annual
compounded rates of return over the periods that would equate the initial amount
invested to the ending redeemable value, according to the following formula:

                                 P(1 + T)n = ERV

     Where:     P  =  a hypothetical initial payment of $1,000
                T  =  average annual total return
                n  =  number of years
             ERV   =  ending redeemable value of a hypothetical $1,000 payment
                      made at the beginning of the 1-, 5-, or 10-year periods at
                      the end of the year or period

      The  calculation  assumes any charges are deducted from the initial $1,000
payment and assumes all dividends and  distributions  by the Fund are reinvested
at the price  stated in the  Prospectus  on the  reinvestment  dates  during the
period,  and includes  all  recurring  fees that are charged to all  shareholder
accounts.

                                       13

<PAGE>

               APPENDIX A - LONG-TERM AND SHORT-TERM DEBT RATINGS

1.   Long-Term Debt Ratings:

Moody's Investors Service, Inc. (Moody's)

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.

Baa      Bonds which are rated Baa are  considered as  medium-grade  obligations
         (i.e., they are neither highly protected nor poorly secured).  Interest
         payments and  principal  security  appear  adequate for the present but
         certain  protective  elements may be lacking or may be adequate for the
         present  but  certain  protective  elements  may be  lacking  or may be
         characteristically unreliable over any great length of time. Such bonds
         lack   outstanding   investment   characteristics   and  in  fact  have
         speculative characteristics as well.

Ba       Bonds which are rated Ba are judged to have speculative elements; their
         future cannot be considered  as well assured.  Often the  protection of
         interest and principal  payments may be very moderate,  and thereby not
         well  safeguarded  during  both  good and bad  times  over the  future.
         Uncertainty of position characterizes bonds in this class.

B        Bonds which are rated B generally lack characteristics of the desirable
         investment.   Assurance  of  interest  and  principal  payments  or  of
         maintenance of other terms of the contract over any long period of time
         may be small.

Caa      Bonds which are rated Caa are of poor  standing.  Such issues may be in
         default  or there may be present  elements  of danger  with  respect to
         principal or interest.

Ca       Bonds which are rated Ca represent obligations which are speculative in
         a high  degree.  Such issues are often in default or have other  marked
         shortcomings.

C        Bonds which are rated C are the lowest rated class of bonds, and issues
         so rated can be regarded as having  extremely  poor  prospects  of ever
         attaining any real investment standing.

Standard & Poor's Ratings Group (S&P)

AAA      Debt rated AAA has the  highest  rating  assigned by Standard & Poor's.
         Capacity to pay interest and repay principal is extremely strong.

AA       Debt rated 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.

BBB      Debt  rated  BBB is  regarded  as having an  adequate  capacity  to pay
         interest and repay  principal.  Whereas it normally  exhibits  adequate
         protection   parameters,   adverse  economic   conditions  or  changing
         circumstances  are more  likely to lead to a weakened  capacity  to pay
         interest and repay  principal  for debt in this category than in higher
         rated categories.

BB       Debt rated BB has less  near-term  vulnerability  to default than other
         speculative issues.  However,  it faces major ongoing  uncertainties or
         exposure to adverse business,  financial,  or economic conditions which
         could lead to inadequate capacity to meet timely interest and principal
         payments.  The BB rating category is also used for debt subordinated to
         senior debt that is assigned an actual or implied BBB- rating.


                                       14

<PAGE>

B        Debt rated B has a greater  vulnerability  to default but currently has
         the  capacity  to meet  interest  payments  and  principal  repayments.
         Adverse business,  financial, or economic conditions will likely impair
         capacity or  willingness  to pay  interest and repay  principal.  The B
         rating category is also used for debt  subordinated to senior debt that
         is assigned an actual or implied BB or BB- rating.

CCC      Debt rated CCC has a currently  identifiable  vulnerability to default,
         and is  dependent  upon  favorable  business,  financial,  and economic
         conditions  to  meet  timely  payment  of  interest  and  repayment  of
         principal.  In the event of adverse  business,  financial,  or economic
         conditions,  it is not likely to have the  capacity to pay interest and
         repay  principal.  The CCC  rating  category  is  also  used  for  debt
         subordinated  to senior debt that is assigned an actual or implied B or
         B- rating.

CC       The rating CC typically is applied to debt  subordinated to senior debt
         that is assigned an actual or implied CCC rating.

C        The rating C typically is applied to debt  subordinated  to senior debt
         which is assigned an actual or implied CCC- debt  rating.  The C rating
         may be used to cover a situation  where a bankruptcy  petition has been
         filed, but debt service payments are continued.

CI       The rating CI is reserved for income bonds on which no interest is 
         being paid.

D        Debt rated D is in payment default.  The D rating category is used when
         interest  payments or  principal  payments are not made on the date due
         even if the  applicable  grace  period  has  not  expired,  unless  S&P
         believes that such payments will be made during such grace period.  The
         D rating also will be used upon the filing of a bankruptcy  petition if
         debt service payments are jeopardized.

Plus  (+) or  Minus  (-):  The  ratings  from AA to CCC may be  modified  by the
addition  of a plus or minus  sign to show  relative  standing  within the major
rating categories.

Fitch Investors Service, Inc. (Fitch)

AAA      Bonds  considered  to be  investment  grade and of the  highest  credit
         quality.  The  obligor  has  an  exceptionally  strong  ability  to pay
         interest  and repay  principal,  which is  unlikely  to be  affected by
         reasonably foreseeable events.

AA       Bonds  considered  to be  investment  grade  and of  very  high  credit
         quality.  The obligor's  ability to pay interest and repay principal is
         very strong,  although not quite as strong as bonds rated AAA.  Because
         bonds  rated  in  the  AAA  and AA  categories  are  not  significantly
         vulnerable to foreseeable future developments, short-term debt of these
         issuers is generally rated F-1+.

A        Bonds considered to be investment grade and of high credit quality. The
         obligor's  ability to pay interest and repay principal is considered to
         be strong,  but may be more  vulnerable to adverse  changes in economic
         conditions and circumstances than bonds with higher ratings.

BBB      Bonds  considered to be  investment  grade and of  satisfactory  credit
         quality.  The obligor's  ability to pay interest and repay principal is
         considered to be adequate.  Adverse changes in economic  conditions and
         circumstances, however, are more likely to have adverse impact on these
         bonds,  and therefore,  impair timely payment.  The likelihood that the
         ratings of these bonds will fall below  investment grade is higher than
         for bonds with higher ratings.

Plus (+) Minus(-) Plus and minus signs are used with a rating symbol to indicate
the relative  position of a credit  within the rating  category.  Plus and minus
signs, however, are not used in the AAA category.

Duff & Phelps (D&P)

AAA      Highest credit  quality.  The risk factors are  negligible,  being only
         slightly more than for risk-free U.S. Treasury debt.

AA       High credit quality.  Protection factors are strong. Risk is modest but
         may vary slightly from time to time because of economic conditions.

A        Protection factors are average but adequate.  However, risk factors are
         more variable and greater in periods of economic stress.

BBB      Below-average  protection  factors but still considered  sufficient for
         prudent  investment.  Considerable  variability in risk during economic
         cycles.


                                       15

<PAGE>

2.   Short-Term Debt Ratings:

Moody's Taxable Debt

Prime-1     Issuers rated Prime-1 (or supporting  institutions)  have a superior
            ability for repayment of senior short-term debt obligations. Prime-1
            repayment  ability will often be evidenced by many of the  following
            characteristics:

  o    Leading market positions in well-established industries.
  o    High rates of return on funds employed.
  o    Conservative capitalization structure with moderate reliance on debt and
       ample asset protection.
  o    Broad margins in earnings coverage of fixed financial charges and high
       internal cash generation. 
  o    Well-established access to a range of financial markets and assured 
       sources of alternate liquidity.

Prime-2     Issuers rated  Prime-2 (or  supporting  institutions)  have a strong
            ability for repayment of senior  short-term debt  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,  may be  more  subject  to  variation.  Capitalization
            characteristics,  while still  appropriate,  may be more affected by
            external conditions. Ample alternate liquidity is maintained.

Prime-3     Issuers  rated  Prime-3  (or   supporting   institutions)   have  an
            acceptable  ability for repayment of senior short-term  obligations.
            The effect of industry  characteristics  and market compositions may
            be more pronounced.  Variability in earnings and  profitability  may
            result in changes in the level of debt protection  measurements  and
            may require relatively high financial  leverage.  Adequate alternate
            liquidity is maintained.

Moody's Municipal

MIG 1/VMIG 1           This designation denotes best quality.  There is present 
                       strong protection by established cash flows, superior 
                       liquidity support or demonstrated broadbased access to 
                       the market for refinancing.

MIG 2/VMIG 2           This designation denotes high quality.  Margins of 
                       protection are ample although not so large as in the
                       preceding group.

MIG 3/VMIG 3           This designation denotes favorable quality.  All security
                       elements are accounted for but there is lacking the
                       undeniable strength of the preceding grades.  Liquidity
                       and cash flow protection may be narrow and market access
                       for refinancing is likely to be less well established.

MIG 4/VMIG 4           This designation denotes adequate quality.  Protection
                       commonly regarded as required of an investment security 
                       is present and although not distinctly or predominantly
                       speculative, there is specific risk.

S&P Commercial Paper

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.

A-3       Issues  carrying this  designation  have adequate  capacity for timely
          payment.  They are, however, more vulnerable to the adverse effects of
          changes  in  circumstances   than  obligations   carrying  the  higher
          designations.

S&P Notes

SP-1      Strong  capacity to pay principal and interest.  Issues  determined to
          possess very strong characteristics are given a plus (+) designation.

SP-2      Satisfactory  capacity  to  pay  principal  and  interest,  with  some
          vulnerability to adverse  financial and economic changes over the term
          of the notes.


                                       16

<PAGE>

Fitch

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 assigned 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.

F-3       Fair credit quality.  Issues assigned this rating have characteristics
          suggesting  that  the  degree  of  assurance  for  timely  payment  is
          adequate;   however,  near-term  adverse  changes  could  cause  these
          securities to be rated below investment grade.

Duff & Phelps Inc.

D-1+      Highest certainty of timely payment.  Short-term liquidity,  including
          internal operating factors and/or ready access to alternative  sources
          of funds,  is  outstanding,  and safety is just below  risk-free  U.S.
          Treasury short-term obligations.

D-1       Very high certainty of timely payment. Liquidity factors are excellent
          and supported by good fundamental protection factors. Risk factors are
          minor.

D-1-      High  certainty of timely  payment.  Liquidity  factors are strong and
          supported by good  fundamental  protection  factors.  Risk factors are
          very small.

D-2       Good  certainty  of timely  payment.  Liquidity  factors  and  company
          fundamentals  are sound.  Although  ongoing  funding needs may enlarge
          total financing requirements,  access to capital markets is good. Risk
          factors are small.

D-3       Satisfactory  liquidity and other protection factors qualify issues as
          to  investment  grade.  Risk  factors  are larger and  subject to more
          variation. Nevertheless, timely payment is expected.

Thompson BankWatch, Inc.

TBW-1     The highest category;  indicates a very high likelihood that principal
          and interest will be paid on a timely basis.

TBW-2     The second  highest  category;  while the  degree of safety  regarding
          timely  repayment  of principal  and interest is strong,  the relative
          degree of safety is not as high as for issues rated TBW-1.

TBW-3     The  lowest  investment  grade  category;  indicates  that  while  the
          obligation is more susceptible to adverse  developments (both internal
          and external) than those with higher ratings,  the capacity to service
          principal and interest in a timely fashion is considered adequate.

IBCA Inc.

A1        Obligations  supported by the highest  capacity for timely  repayment.
          Where issues possess a particularly strong credit feature, a rating of
          A1+ is assigned.

A2        Obligations  supported by a satisfactory capacity for timely repayment
          although  such  capacity  may be  susceptible  to  adverse  changes in
          business, economic or financial conditions.

A3        Obligations  supported by an adequate  capacity for timely  repayment.
          Such  capacity is more  susceptible  to adverse  changes in  business,
          economic  or  financial  conditions  than for  obligations  in  higher
          categories.

B         Obligations for which the capacity for timely repayment is susceptible
          to adverse changes in business, economic, or financial conditions.

C         Obligations  for which there is a high risk of default or which are 
          currently in default.



                                       17

<PAGE>



                APPENDIX B - COMPARISON OF PORTFOLIO PERFORMANCE

Occasionally,  we may make  comparisons  in  advertising  and  sales  literature
between  each Fund  contained  in this SAI and other Funds in the USAA Family of
Funds. These comparisons may include such topics as risk and reward,  investment
objectives, investment strategies, and performance.

      Fund  performance  also may be compared to the performance of broad groups
of mutual funds with similar investment goals or unmanaged indexes of comparable
securities. Evaluations of Fund performance made by independent sources may also
be used in  advertisements  concerning  the  Fund,  including  reprints  of,  or
selections  from,  editorials  or  articles  about  the  Fund.  Each Fund or its
performance  may also be compared  to products  and  services  not  constituting
securities  subject to registration  under the 1933 Act such as, but not limited
to,  certificates of deposit and money market accounts.  Sources for performance
information and articles about each Fund may include the following:

AAII  Journal,  a monthly  association  magazine  for  members  of the  American
Association of Individual Investors.

Arizona Republic, a newspaper which may cover financial and investment news.

Austin American-Statesman, a newspaper which may cover financial news.

Bank Rate Monitor, a service which publishes rates on various bank products such
as CDS, MMDAs and credit cards.

Barron's, a Dow Jones and Company, Inc. business and financial weekly that 
periodically reviews mutual fund performance data.

Business  Week,  a  national  business  weekly  that  periodically  reports  the
performance rankings and ratings of a variety of mutual funds.

Chicago Tribune, a newspaper which may cover financial news.

Consumer  Reports,  a  monthly  magazine  which  from  time to time  reports  on
companies in the mutual fund industry.

Dallas Morning News, a newspaper which may cover financial news.

Denver Post, a newspaper which may quote financial news.

Financial Planning, a monthly magazine which may periodically review mutual fund
companies.

Financial Services Week, a weekly newspaper which covers financial news.

Financial World, a monthly magazine that periodically  features companies in the
mutual fund industry.

Forbes,  a  national  business   publication  that   periodically   reports  the
performance of companies in the mutual fund industry.

Fortune, a national business publication that periodically rates the performance
of a variety of mutual funds.

Fund Action, a mutual fund news report.

Houston Chronicle, a newspaper which may cover financial news.

Houston Post, a newspaper which may cover financial news.

IBC/Donoghue's  Moneyletter,  a biweekly  newsletter which covers financial news
and from time to time rates specific mutual funds.

IBC's Money Market Insight, a monthly money market industry analysis prepared by
IBC USA, Inc.

Income and Safety, a monthly newsletter that rates mutual funds.

InvesTech, a bimonthly investment newsletter.

Investment  Advisor,  a monthly  publication  directed  primarily to the advisor
community; includes ranking of mutual funds using a proprietary methodology.

Investment  Company  Institute,   the  national   association  of  the  American
investment company industry.

Investor's Business Daily, a newspaper which covers financial news.

Kiplinger's Personal Finance Magazine, a monthly investment advisory publication
that periodically features the performance of a variety of securities.

Lipper Analytical  Services,  Inc.'s Fixed Income Fund Performance  Analysis,  a
monthly publication of industry-wide mutual fund performance averages by type of
fund.

                                       18

<PAGE>

Lipper Analytical Services,  Inc.'s Mutual Fund Performance  Analysis, a monthly
publication of industry-wide mutual fund averages by type of fund.

Los Angeles Times, a newspaper which may cover financial news.

Louis Rukeyser's Wall Street, a publication for investors.

Medical  Economics,  a monthly  magazine  providing  information  to the medical
profession.

Money, a monthly  magazine that features the  performance of both specific funds
and the mutual fund industry as a whole.

Money Fund Report,  a weekly  publication  of the Donoghue  Organization,  Inc.,
reporting on the  performance  of the nation's  money market funds,  summarizing
money  market fund  activity,  and  including  certain  averages as  performance
benchmarks, specifically "Donoghue's Taxable First Tier Fund Average."

Morningstar 5 Star Investor,  a monthly  newsletter  which covers financial news
and rates  mutual  funds by  Morningstar,  Inc.  (a data  service  which  tracks
open-end mutual funds).

Mutual Fund Forecaster, a monthly newsletter that ranks mutual funds.

Mutual Fund Investing, a newsletter covering mutual funds.

Mutual Fund Performance Report, a monthly publication of mutual fund performance
and rankings, produced by Morningstar, Inc.

Mutual Funds Magazine, a monthly publication reporting on mutual fund investing.

Mutual Fund Source Book, an annual publication produced by Morningstar, Inc. 
which describes and rates mutual funds.

Mutual  Fund  Values,   a  biweekly   guidebook  to  mutual  funds  produced  by
Morningstar, Inc.

Newsweek, a national business weekly.

New York Times, a newspaper which may cover financial news.

No Load Fund  Investor,  a  newsletter  covering  companies  in the mutual  fund
industry.

Personal  Investor,  a monthly  magazine which from time to time features mutual
fund companies and the mutual fund industry.

San Antonio Business Journal, a weekly newspaper that periodically covers mutual
fund companies as well as financial news.

San Antonio Express-News, a newspaper which may cover financial news.

San Francisco Chronicle, a newspaper which may cover financial news.

Smart Money,  a monthly  magazine  featuring  news and articles on investing and
mutual funds.

USA Today, a newspaper which may cover financial news.

U.S. News and World Report, a national business weekly that periodically reports
mutual fund performance data.

Wall Street Journal, a Dow Jones and Company, Inc. newspaper which covers
financial news.

Washington Post, a newspaper which may cover financial news.

Weisenberger  Mutual Funds Investment  Report, a monthly newsletter that reports
on both specific mutual fund companies and the mutual fund industry as a whole.

Worth,  a magazine  which covers  financial and  investment  subjects  including
mutual funds.

Your Money, a monthly magazine directed toward the novice investor.

      Among the organizations  cited above, Lipper Analytical  Services,  Inc.'s
tracking  results may be used.  A Fund will be compared to Lipper's  appropriate
fund category according to fund objective and portfolio holdings.  The Science &
Technology  Fund will be compared to funds in  Lipper's  science and  technology
funds  category.  The Young Investors Growth Fund will be compared  to funds in
Lipper's  growth funds category.  Footnotes in advertisements and other
marketing literature will include the time period applicable for any ranking
used.

      For comparative  purposes,  unmanaged indexes of comparable  securities or
economic data may be cited.



                                       19

<PAGE>

Examples include the following:

 - Ibbotson Associates, Inc., Stocks, Bonds, Bills, and Inflation Yearbook.

 - Lehman Brothers 1-3 year Government/Corporate  Index is an unmanaged index of
all the  government,  agency,  and corporate bonds longer than one year and less
than three years.

 -  Lehman  Brothers   Aggregate  Bond  Index  is  an  unmanaged  index  of  the
Government/Corporate  Index,  the  Mortgage  Backed  Securities  Index,  and the
Asset-Backed Securities Index.

 - NASDAQ  Industrials,  a  composite  index  of  approximately  3000  unmanaged
securities of industrial corporations traded over the counter.

 - Russell  2000(R)  Index is an index  which  consists  of the  2,000  smallest
companies in the Russell 3000(R) Index, a widely regarded small cap index.

 - S&P 500 Index, a broadbased  composite  unmanaged  index that  represents the
average performance of a group of 500 widely held, publicly traded stocks.

      Other  sources for total  return and other  performance  data which may be
used by a Fund or by those publications listed previously are Morningstar, Inc.,
Schabaker  Investment  Management,  and Investment  Company Data, Inc. These are
services that collect and compile data on mutual fund companies.

                       APPENDIX C - DOLLAR-COST AVERAGING

Dollar-cost  averaging  is a  systematic  investing  method which can be used by
investors as a disciplined  technique for investing.  A fixed amount of money is
invested in a security  (such as a stock or mutual fund) on a regular basis over
a period of time,  regardless  of whether  securities  markets  are moving up or
down.

      This  practice  reduces  average  share costs to the investor who acquires
more shares in periods of lower securities prices and fewer shares in periods of
higher prices.

      While  dollar-cost  averaging does not assure a profit or protect  against
loss in declining markets,  this investment strategy is an effective way to help
calm the effect of fluctuations in the financial markets.  Systematic  investing
involves  continuous  investment in securities  regardless of fluctuating  price
levels of such securities.  Investors should consider their financial ability to
continue purchases through periods of low and high price levels.

      As the following chart  illustrates,  dollar-cost  averaging tends to keep
the overall cost of shares lower.  This example is for  illustration  only,  and
different trends would result in different average costs.


                         HOW DOLLAR-COST AVERAGING WORKS

                      $100 Invested Regularly for 5 Periods

                                  Market Trend
 -------------------------------------------------------------------------------

                            Down                    Up              Mixed
               -----------------------------------------------------------------
               Share     Shares       Share       Shares      Share    Shares
Investment     Price     Purchased    Price       Purchased   Price    Purchased
               -------------------    ---------------------   ------------------
   $100           10       10           6          16.67        10      10
    100            9       11.1         7          14.29         9      11.1
    100            8       12.5         7          14.29         8      12.5
    100            8       12.5         9          11.1          9      11.1
    100            6       16.67       10          10           10      10
   ----           --       ----        --          ----        ---      ---
   $500        ***41       62.77    ***39          66.35     ***46      54.7
              *Avg. Cost:  $7.97       *Avg. Cost: $7.54   *Avg. Cost:  $9.14
                           -----                   -----                -----
          **Avg. Price:    $8.20      **Avg. Price:$7.80  **Avg Price:  $9.20
                           -----                   -----                -----

                *  Average Cost is the total amount invested divided by number
                   of shares purchased.
               **  Average Price is the sum of the prices paid divided by number
                   of purchases.
              ***  Cumulative total of share prices used to compute average 
                   prices.


30229-08297

                                       20

<PAGE>


                             USAA MUTUAL FUND, INC.


PART C.       OTHER INFORMATION
              -----------------

Item 24.      Financial Statements and Exhibits
              ---------------------------------

        (a)   Financial Statements:

              Financial  Statements  included in Parts A and B (Prospectuses and
              Statement  of  Additional   Information)   of  this   Registration
              Statement:

   
              With respect to the Science & Technology  Fund and the Young 
              Investors Growth Fund, the Unaudited  Financial  Statements to be
              included in Part B will be filed by amendment.
    

        (b)   Exhibits:

Exhibit No.      Description of Exhibits
- -----------      -----------------------

   
     1  (a)      Articles of Incorporation dated October 10, 1980 (1)
        (b)      Articles of Amendment dated January 14, 1981 (1)
        (c)      Articles Supplementary dated July 28, 1981 (1)
        (d)      Articles Supplementary dated November 3, 1982 (1)
        (e)      Articles of Amendment dated May 18, 1983 (1)
        (f)      Articles Supplementary dated August 8, 1983 (1)
        (g)      Articles Supplementary dated July 27, 1984 (1)
        (h)      Articles Supplementary dated November 5, 1985 (1)
        (i)      Articles Supplementary dated January 23, 1987 (1)
        (j)      Articles Supplementary dated May 13, 1987 (1)
        (k)      Articles Supplementary dated January 25, 1989 (1)
        (l)      Articles Supplementary dated May 2, 1991 (1)
        (m)      Articles Supplementary dated November 14, 1991 (1)
        (n)      Articles Supplementary dated April 14, 1992 (1)
        (o)      Articles Supplementary dated November 4, 1992 (1)
        (p)      Articles Supplementary dated March 23, 1993 (1)
        (q)      Articles Supplementary dated May 5, 1993 (1)
        (r)      Articles Supplementary dated November 8, 1993 (1)
        (s)      Articles Supplementary dated January 18, 1994 (1)
        (t)      Articles Supplementary dated November 9, 1994 (1)
        (u)      Articles Supplementary dated November 8, 1995 (2)
        (v)      Articles Supplementary dated February 6, 1996 (3)
        (w)      Articles Supplementary dated March 12, 1996 (4)
        (x)      Articles Supplementary dated November 13, 1996 (7)
        (y)      Articles Supplementary dated May 9, 1997 (filed herewith)
    

     2           Bylaws, as amended March 12, 1996 (4)

     3           Voting trust agreement - Not Applicable
   
     4           Specimen certificates for shares of
        (a)      Growth Fund (1)
        (b)      Income Fund (1)
        (c)      Money Market Fund (1)
        (d)      Aggressive Growth Fund (1)

                                       C-1

<PAGE>

Exhibit No.      Description of Exhibits
- -----------      -----------------------

        (e)      Income Stock Fund (1)
        (f)      Growth & Income Fund (1)
        (g)      Short-Term Bond Fund (1)
        (h)      S&P 500 Index Fund (4)
        (i)      Form of Science & Technology Fund (filed herewith)
        (j)      Form of Young Investors Growth Fund (filed herewith)

     5  (a)      Advisory Agreement dated September 21, 1990 (1)
        (b)      Letter Agreement dated June 1, 1993 adding Growth & Income
                  Fund and Short-Term Bond Fund (1)
        (c)      Management Agreement dated May 1, 1996 with respect to the
                  S&P 500 Index Fund (5)
        (d)      Administration Agreement dated May 1, 1996 with respect to
                  the S&P 500 Index Fund (5)
        (e)      Letter Agreement to the Management Agreement dated May 1,
                  1996 with respect to the S&P 500 Index Fund (5)
      (f)        Amendment to Administration Agreement dated May 1, 1997 with
                 respect to the S&P 500 Index Fund (7)
      (g)        Form of Letter Agreement adding the Science & Technology Fund
                  and Young Investors Growth Fund (filed herewith)

     6  (a)      Underwriting Agreement dated July 25, 1990 (1)
        (b)      Letter Agreement dated June 1, 1993 adding Growth & Income
                  Fund and Short-Term Bond Fund (1)
        (c)      Letter Agreement dated May 1, 1996 adding S&P 500 Index Fund(5)
        (d)      Form of Letter Agreement adding Science & Technology Fund and
                  Young Investors Growth Fund (filed herewith)
    
     7           Not Applicable

   
     8  (a)      Custodian Agreement dated November 3, 1982 (1)
        (b)      Letter Agreement dated April 20, 1987 adding Income Stock Fund
                  (1)
        (c)      Amendment No. 1 to the Custodian Contract dated October 30,
                  1987 (1)
        (d)      Amendment to the Custodian Contract dated November 3, 1988 (1)
        (e)      Amendment to the Custodian Contract dated February 6, 1989 (1)
        (f)      Amendment to the Custodian Contract dated November 8, 1993 (1)
        (g)      Letter Agreement dated June 1, 1993 adding Growth & Income
                  Fund and Short-Term Bond Fund (1)
        (h)      Subcustodian Agreement dated March 24, 1994 (3)
        (i)      Custodian Agreement dated May 1, 1996 with respect to the
                  S&P 500 Index Fund (5)
        (j)      Subcustodian Agreement dated May 1, 1996 with respect to
                  the S&P 500 Index Fund (5)
        (k)      Letter Agreement to the Custodian Agreement dated May 1, 1996
                  with respect to the S&P 500 Index Fund (5)
        (l)      Amendment to Custodian Contract dated May 13, 1996 (5)
        (m)      Form of Letter Agreement to the Custodian Agreement with 
                  respect to the Science & Technology Fund and Young Investors
                  Growth Fund (filed herewith)

     9  (a)      Articles of Merger dated January 30, 1981 (1)
        (b)      Transfer Agency Agreement dated January 23, 1992 (1)
        (c)      Letter Agreement dated June 1, 1993 to Transfer Agency 
                  Agreement adding Growth & Income Fund and Short-Term Bond 
                  Fund (1)


                                       C-2

<PAGE>

Exhibit No.      Description of Exhibits
- -----------      -----------------------

        (d)      Amendments dated May 3, 1995 to the Transfer Agency Agreement
                  Fee Schedules for Growth Fund, Aggressive Growth Fund, Income
                  Fund, Growth & Income Fund, Income Stock Fund, Money Market
                  Fund, and Short-Term Bond Fund (1)
        (e)      Amendment No. 1 to Transfer Agency Agreement dated November 14,
                  1995 (2)
        (f)      Third Party Feeder Fund Agreement dated May 1, 1996 with
                  respect to the S&P 500 Index Fund (5)
        (g)      Letter Agreement to Transfer Agency Agreement dated May 1, 1996
                  adding S&P 500 Index Fund (5)
        (h)      Transfer Agency Agreement Fee Schedule dated May 1, 1996
                  for S&P 500 Index Fund (5)
        (i)      Master Revolving Credit Facility Agreement with USAA Capital
                  Corporation dated January 14, 1997 (7)
        (j)      Master Revolving Credit Facility Agreement with NationsBank
                  of Texas dated January 15, 1997 (7)
        (k)      Form of Letter  Agreement to Transfer Agency Agreement adding
                  Science & Technology  Fund and Young Investors Growth Fund
                  (filed herewith)
        (l)      Form of Transfer Agency Agreement Fee Schedule for Science &
                  Technology Fund (filed herewith)
        (m)      Form of Transfer Agency Agreement Fee Schedule for Young 
                  Investors Growth Fund (filed herewith)

   10   (a)      Opinion of Counsel with respect to the Growth Fund, Income
                  Fund, Money Market Fund, Income Stock Fund, Growth &
                  Income Fund, and Short-Term Bond Fund (2)
        (b)      Opinion of Counsel with respect to the S&P 500 Index Fund (3)
        (c)      Consent of Counsel with respect to the S&P 500 Index Fund (7)
        (d)      Opinion and Consent of Counsel with respect to the Aggressive
                   Growth Fund (6)
        (e)      Consent of Counsel with respect Growth Fund, Income Fund,
                  Money Market Fund, Income Stock Fund, Growth & Income Fund,
                  and Short-Term Bond Fund (6)
        (f)      Opinion and Consent of Counsel with respect to the Science &
                  Technology Fund and Young Investors Growth Fund
                  (filed herewith)

   11            Not Applicable
    

   12            Financial Statements omitted from prospectus - Not Applicable

   
   13   (a)      Subscription and Investment Letter for Growth & Income Fund
                  and Short-Term Bond Fund (1)
        (b)      Subscription and Investment Letter for S&P 500 Index Fund (5)
        (c)      Form of Subscription and Investment Letter for Science & 
                  Technology Fund and Young Investors Growth Fund
                  (filed herewith)
    

   14            Prototype Plans
        (a)      USAA INVESTMENT MANAGEMENT COMPANY IRA Handbook (1)
        (b)      USAA INVESTMENT MANAGEMENT COMPANY SEP-IRA Handbook (1)
        (c)      USAA INVESTMENT MANAGEMENT COMPANY 403(b)(7) Handbook (1)

   15            12b-1 Plans - Not Applicable

   16            Schedule for Computation of Performance Quotation (1)

   
   17            Financial Data Schedule - Not Applicable
    

                                       C-3

<PAGE>

Exhibit No.      Description of Exhibits
- -----------      -----------------------

   18            Plan Adopting Multiple Classes of Shares - Not Applicable

   
   19            Powers of Attorney
        (a)      Powers of Attorney for Michael J.C. Roth, Sherron A. Kirk, John
                  W. Saunders, Jr., George E. Brown, Howard L. Freeman, Jr., and
                  Richard A. Zucker dated November 8, 1993 (1)
        (b)      Power of Attorney for Barbara B. Dreeben dated September 12, 
                  1995 (1)
        (c)      With respect to the S&P 500 Index Fund, Powers of Attorney for
                  Ronald M. Petnuch, Philip W. Coolidge, Charles P. Biggar,
                  S. Leland Dill, and Philip Saunders, Jr., Trustees of the
                  Equity 500 Index Portfolio, dated September 30, 1996 (7)
        (d)      Power of Attorney for Robert G. Davis (7)
        (e)      Power of Attorney for Robert L. Mason (7)
    


(1) Previously filed with Post-Effective Amendment No. 38 of the Registrant 
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    September 29, 1995.

(2) Previously filed with Post-Effective Amendment No. 39 of the Registrant 
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    November 21, 1995.

(3) Previously filed with Post-Effective Amendment No. 40 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    February 15, 1996.

(4) Previously filed with Post-Effective Amendment No. 41 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    April 26, 1996.

(5) Previously filed with Post-Effective Amendment No. 42 of the Registrant 
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    September 11, 1996.

(6) Previously filed with Post-Effective Amendment No. 43 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    October 1, 1996.

   
(7) Previously filed with Post-Effective Amendment No. 44 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on
    April 21, 1997.
    



                                       C-4

<PAGE>

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

              Information  pertaining  to persons  controlled by or under common
              control with Registrant is hereby incorporated by reference to the
              section  captioned  "Management  of the Company" in the Prospectus
              and the section captioned  "Directors and Officers of the Company"
              in the Statement of Additional Information.

Item 26.      Number of Holders of Securities
              -------------------------------

              Set forth below are the number of record  holders,  as of February
              28, 1997, of each class of securities of the Registrant.

                    Title of Class                   Number of Record Holders
                    --------------                   ------------------------

                  Aggressive Growth Fund                      70,777
                  Growth Fund                                 93,409
                  Income Stock Fund                          106,619
                  Income Fund                                 66,943
                  Money Market Fund                          125,704
                  Growth & Income Fund                        45,689
                  Short-Term Bond Fund                         8,029
                  S&P 500 Index Fund                          12,921

Item 27.      Indemnification
              ---------------

              Protection  for the liability of the adviser and  underwriter  and
              for the officers and  directors of the  Registrant  is provided by
              two methods:

        (a)   The Director and Officer Liability Policy.  This policy covers all
              losses incurred by the Registrant, its adviser and its underwriter
              from any claim made against those  entities or persons  during the
              policy period by any shareholder or former shareholder of the Fund
              by  reason  of  any  alleged  negligent  act,  error  or  omission
              committed in connection with the administration of the investments
              of said Registrant or in connection with the sale or redemption of
              shares issued by said Registrant.

        (b)   Statutory Indemnification Provisions.  Under Section 2-418 of the
              Maryland General Corporation Law, the Registrant is authorized to
              indemnify any past or present director, officer, agent or employee
              against judgments, penalties, fines, settlements and reasonable
              expenses actually incurred by him in connection with any 
              proceeding in which he is a party by reason of having served as a 
              director, officer, agent or employee, if he acted in good faith 
              and reasonably believed that, (i) in the case of conduct in his 
              official capacity with the Registrant, that his conduct was in the
              best interests of the Registrant, or (ii) in all other cases, that
              his conduct was at least not opposed to the best interests of the
              Registrant.  In the case of any criminal proceeding, said
              director, officer, agent or employee must in addition have had no
              reasonable cause to believe that his conduct was unlawful.  In the
              case of a proceeding by or in the right of the Registrant,
              indemnification may only be made against reasonable expenses and
              may not be made in respect of any proceeding in which the 
              director, officer, agent or employee shall have been adjudged to
              be liable to the Registrant.  The termination of any proceeding by
              judgment, order, settlement, conviction, or upon a plea of nolo
              contendere or its equivalent creates a rebuttable presumption
              that the director, officer, agent or employee did not meet the
              requisite

                                       C-5

<PAGE>

              standard of conduct for indemnification. No indemnification may be
              made in  respect  of any  proceeding  charging  improper  personal
              benefit to the director, officer, agent or employee whether or not
              involving  action  in such  person's  official  capacity,  if such
              person  was  adjudged  to be  liable on the  basis  that  improper
              personal benefit was received. If such director, officer, agent or
              employee is successful,  on the merits or otherwise, in defense of
              any such proceeding  against him, he shall be indemnified  against
              the   reasonable   expenses   incurred   by   him   (unless   such
              indemnification is limited by the Registrant's  charter,  which it
              is not).  Additionally,  a court of appropriate  jurisdiction  may
              order   indemnification  in  certain  circumstances  even  if  the
              appropriate standard of conduct set forth above was not met.

              Indemnification  may not be made unless authorized in the specific
              case after  determination that the applicable  standard of conduct
              has been met. Such determination  shall be made by either: (i) the
              board of  directors  by  either  (x) a  majority  vote of a quorum
              consisting  of directors  not parties to the  proceeding or (y) if
              such a quorum  cannot be  obtained,  then by a majority  vote of a
              committee of the board consisting  solely of two or more directors
              not  at  the  time  parties  to  such  proceeding  who  were  duly
              designated  to act in the  matter by a  majority  vote of the full
              board  in which  the  designated  directors  who are  parties  may
              participate;  (ii) special legal counsel  selected by the board of
              directors  or a committee of the board by vote as set forth in (i)
              above, or, if the requisite quorum of the board cannot be obtained
              therefore and the committee  cannot be established,  by a majority
              vote of the full  board in which  directors  who are  parties  may
              participate; or (iii) the stockholders.

              Reasonable expenses may be reimbursed or paid by the Registrant in
              advance   of   final   disposition   of  a   proceeding   after  a
              determination, made in accordance with the procedures set forth in
              the preceding paragraph, that the facts then known to those making
              the  determination  would not preclude  indemnification  under the
              applicable  standards  provided  the  Registrant  receives  (i)  a
              written affirmation of the good faith belief of the person seeking
              indemnification  that the applicable standard of conduct necessary
              for  indemnification  has been met, and (ii) a written undertaking
              to repay the advanced sums if it is ultimately determined that the
              applicable standard of conduct has not been met.

              Insofar  as  indemnification  for  liabilities  arising  under the
              Securities Act of 1933 may be permitted to directors, officers and
              controlling persons of the Registrant pursuant to the Registrant's
              Articles of  Incorporation  or otherwise,  the Registrant has been
              advised  that,  in the  opinion  of the  Securities  and  Exchange
              Commission,  such  indemnification  is  against  public  policy as
              expressed  in the  Act and is,  therefore,  unenforceable.  In the
              event that a claim for  indemnification  against such  liabilities
              (other than the payment by the Registrant of expenses  incurred or
              paid  by  a  director,   officer  or  controlling  person  of  the
              Registrant  in the  successful  defense  of any  action,  suit  or
              proceeding) is asserted by such  director,  officer or controlling
              person in connection with the securities  being  registered,  then
              the  Registrant  will,  unless in the  opinion of its  counsel the
              matter has been settled by a  controlling  precedent,  submit to a
              court  of  appropriate   jurisdiction   the  question  of  whether
              indemnification by it is against public policy as expressed in the
              Act and will be governed by the final adjudication of such issue.



                                       C-6

<PAGE>

Item 28.      Business and Other Connections of Investment Adviser
              ----------------------------------------------------

              Information  pertaining to business and other  connections  of the
              Registrant's   investment   adviser  is  hereby   incorporated  by
              reference  to  the  section  of  the  Prospectus  captioned  "Fund
              Management"  and to the  section of the  Statement  of  Additional
              Information captioned "Directors and Officers of the Company."

Item 29.      Principal Underwriters
              ----------------------

        (a)   USAA  Investment   Management  Company  (the  "Adviser")  acts  as
              principal  underwriter and distributor of the Registrant's  shares
              on a best-efforts  basis and receives no fee or commission for its
              underwriting  services.   The  Adviser,   wholly-owned  by  United
              Services   Automobile   Association,   also  serves  as  principal
              underwriter for USAA Tax Exempt Fund, Inc., USAA Investment Trust,
              and USAA State Tax-Free Trust.

        (b)   Set  forth  below is  information  concerning  each  director  and
              executive officer of USAA Investment Management Company.

Name and Principal           Position and Offices         Position and Offices
 Business Address              with Underwriter              with Registrant
- ------------------           --------------------         --------------------

Robert G. Davis             Director and Chairman         Director and
9800 Fredericksburg Rd.     of the Board of               Chairman of the
San Antonio, TX  78288      Directors                     Board of Directors

Michael J.C. Roth           Chief Executive Officer,      President, Director
9800 Fredericksburg Rd.     President, Director, and      and Vice Chairman of
San Antonio, TX  78288      Vice Chairman of the          the Board of Directors
                            Board of Directors

John W. Saunders, Jr.       Senior Vice President,        Vice President and
9800 Fredericksburg Rd.     Fixed Income Investments,     Director
San Antonio, TX  78288      and Director

Harry W. Miller             Senior Vice President,        None
9800 Fredericksburg Rd.     Equity Investments,
San Antonio, TX  78288      and Director

John J. Dallahan            Senior Vice President,        None
9800 Fredericksburg Rd.     Investment Services
San Antonio, TX  78288

Carl W. Shirley             Senior Vice President,        None
9800 Fredericksburg Rd.     Insurance Company Portfolios
San Antonio, TX  78288

Michael D. Wagner           Vice President, Secretary     Secretary
9800 Fredericksburg Rd.     and Counsel
San Antonio, TX  78288

Sherron A. Kirk             Vice President and            Treasurer
9800 Fredericksburg Rd.     Controller
San Antonio, TX  78288


                                       C-7

<PAGE>

Alex M. Ciccone             Vice President,               Assistant
9800 Fredericksburg Rd.     Compliance                    Secretary
San Antonio, TX 78288

        (c)   Not Applicable

Item 30.      Location of Accounts and Records
              --------------------------------

              The following entities prepare,  maintain and preserve the records
              required by Section  31(a) of the  Investment  Company Act of 1940
              (the "1940 Act") for the  Registrant.  These services are provided
              to the Registrant  through written  agreements between the parties
              to  the  effect  that  such  services  will  be  provided  to  the
              Registrant   for  such  periods   prescribed   by  the  Rules  and
              Regulations of the Securities  and Exchange  Commission  under the
              1940 Act and such records are the property of the entity  required
              to maintain  and  preserve  such  records and will be  surrendered
              promptly on request:

                    USAA Investment Management Company
                    9800 Fredericksburg Rd.
                    San Antonio, Texas 78288

                    USAA Shareholder Account Services
                    10750 Robert F. McDermott Freeway
                    San Antonio, Texas 78288

                    State Street Bank and Trust Company
                    1776 Heritage Drive
                    North Quincy, Massachusetts 02171

Item 31.      Management Services
              -------------------

              Not Applicable

Item 32.      Undertakings
              ------------

              The Registrant  hereby undertakes to provide each person to whom a
              prospectus is delivered a copy of the  Registrant's  latest annual
              report(s) to shareholders upon request and without charge.

   
              The  Registrant  hereby  undertakes  with respect to the Science &
              Technology  Fund and the Young Investors Growth Fund to file  
              financial  statements which need not be certified within four to
              six months from the date of the Registrant's 1933 Act Registration
              Statement.
    

                                       C-8

<PAGE>

                                   SIGNATURES


   
      Pursuant  to the  requirements  of the  Securities  Act of  1933  and  the
Investment Company Act of 1940, the Registrant certifies that it has duly caused
this amendment to its  Registration  Statement to be signed on its behalf by the
undersigned,  thereunto duly authorized, in the City of San Antonio and State of
Texas on the 9th day of May, 1997.
    

                                              USAA MUTUAL FUND, INC.

                                               /s/ MICHAEL J.C. ROTH
                                              -------------------------------
                                              Michael J.C. Roth
                                              President

         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
amendment to its  Registration  Statement has been signed below by the following
persons in the capacities and on the date indicated.

   (Signature)                   (Title)                          (Date)


                               Chairman of the                  May 9, 1997
/S/ ROBERT G. DAVIS            Board of Directors
- -----------------------------
Robert G. Davis

                               Vice Chairman of the Board       May 9, 1997
/S/ MICHAEL J.C. ROTH          of Directors and President
- -----------------------------  (Principal Executive Officer)
Michael J.C. Roth

                               Treasurer (Principal             May 9, 1997
/S/ SHERRON A. KIRK            Financial and
- -----------------------------  Accounting Officer)
Sherron A. Kirk

/s/ JOHN W. SAUNDERS, JR.      Director                         May 9, 1997
- -----------------------------
John W. Saunders, Jr.

/S/ ROBERT L. MASON            Director                         May 9, 1997
- -----------------------------
Robert L. Mason

/S/ HOWARD L. FREEMAN, JR.     Director                         May 9, 1997
- -----------------------------
Howard L. Freeman, Jr.

/S/ RICHARD A. ZUCKER          Director                         May 9, 1997
- -----------------------------
Richard A. Zucker

/S/ BARBARA B. DREEBEN         Director                         May 9, 1997
- -----------------------------
Barbara B. Dreeben

                                       C-9

<PAGE>



                                  Exhibit Index

Exhibit              Item                                            Page No. *
- -------              ----                                            ----------

   
  1   (a)   Articles of Incorporation dated October 10, 1980 (1)
      (b)   Articles of Amendment dated January 14, 1981 (1)
      (c)   Articles Supplementary dated July 28, 1981 (1)
      (d)   Articles Supplementary dated November 3, 1982 (1)
      (e)   Articles of Amendment dated May 18, 1983 (1)
      (f)   Articles Supplementary dated August 8, 1983 (1)
      (g)   Articles Supplementary dated July 27, 1984 (1)
      (h)   Articles Supplementary dated November 5, 1985 (1)
      (i)   Articles Supplementary dated January 23, 1987 (1)
      (j)   Articles Supplementary dated May 13, 1987 (1)
      (k)   Articles Supplementary dated January 25, 1989 (1)
      (l)   Articles Supplementary dated May 2, 1991 (1)
      (m)   Articles Supplementary dated November 14, 1991 (1)
      (n)   Articles Supplementary dated April 14, 1992 (1)
      (o)   Articles Supplementary dated November 4, 1992 (1)
      (p)   Articles Supplementary dated March 23, 1993 (1)
      (q)   Articles Supplementary dated May 5, 1993 (1)
      (r)   Articles Supplementary dated November 8, 1993 (1)
      (s)   Articles Supplementary dated January 18, 1994 (1)
      (t)   Articles Supplementary dated November 9, 1994 (1)
      (u)   Articles Supplementary dated November 8, 1995 (2)
      (v)   Articles Supplementary dated February 6, 1996 (3)
      (w)   Articles Supplementary dated March 12, 1996 (4)
      (x)   Articles Supplementary dated November 13, 1996 (7)
      (y)   Articles supplementary dated May 9, 1997 (filed herewith)        71
    

  2         Bylaws, as amended March 12, 1996 (4)

  3         Voting trust agreement - Not Applicable

   
  4         Specimen certificates for shares of
      (a)   Growth Fund (1)
      (b)   Income Fund (1)
      (c)   Money Market Fund (1)
      (d)   Aggressive Growth Fund (1)
      (e)   Income Stock Fund (1)
      (f)   Growth & Income Fund (1)
      (g)   Short-Term Bond Fund (1)
      (h)   S&P 500 Index Fund (4)
      (i)   Form of Science & Technology Fund (filed herewith)               74
      (j)   Form of Young Investors Growth  Fund (filed herewith)            77

  5   (a)   Advisory  Agreement dated September 21, 1990 (1)
      (b)   Letter  Agreement dated June 1, 1993 adding Growth & 
             Income Fund and Short-Term Bond Fund (1)
      (c)   Management Agreement dated May 1, 1996 with respect to
             the S&P 500 Index Fund (5)
      (d)   Administration Agreement dated May 1, 1996 with respect to
             the S&P 500 Index Fund (5)
      (e)    Letter Agreement to the Management Agreement dated May 1,
              1996 with respect to the S&P 500 Index Fund (5)
      (f)   Amendment to Administration Agreement dated May 1, 1997
             with respect to the S&P 500 Index Fund (7)

                                      C-10

<PAGE>



Exhibit              Item                                            Page No. *
- -------              ----                                            ----------


      (g)   Form of Letter Agreement adding Science & Technology
             and Young Investors Growth Fund (filed herewith)                80

  6   (a)   Underwriting  Agreement dated July 25, 1990 (1)
      (b)   Letter Agreement dated June 1, 1993 adding Growth & Income
             Fund and Short-Term Bond Fund (1)
      (c)   Letter Agreement  dated May 1, 1996 adding S&P 500 Index Fund (5)
      (d)   Form of Letter Agreement adding Science & Technology Fund
             and Young Investors Growth Fund (filed herewith)                82
    

  7         Not Applicable

   
  8   (a)   Custodian Agreement dated November 3, 1982 (1)
      (b)   Letter Agreement dated April 20, 1987 adding 
             Income Stock Fund (1)
      (c)   Amendment No. 1 to the Custodian Contract dated 
             October 30, 1987 (1)
      (d)   Amendment to the Custodian Contract dated 
             November 3, 1988 (1)
      (e)   Amendment to the Custodian Contract dated
             February 6, 1989 (1)
      (f)   Amendment to the Custodian Contract dated 
             November 8, 1993 (1)
      (g)   Letter Agreement dated June 1, 1993 adding Growth
             & Income Fund and Short-Term  Bond Fund (1)
      (h)   Subcustodian Agreement dated March 24, 1994 (3)
      (i)   Custodian Agreement dated May 1, 1996 with respect
             to the S&P 500 Index Fund (5)
      (j)   Subcustodian Agreement dated May 1, 1996 with respect
             to the S&P 500 Index Fund (5)
      (k)   Letter Agreement to the Custodian Agreement dated
             May 1, 1996 with respect to the S&P 500 Index Fund (5)
      (l)   Amendment to Custodian Contract dated May 13, 1996 (5)
      (m)   Form of Letter Agreement to the Custodian Agreement 
             with respect to the Science & Technology Fund and
             Young Investors Growth Fund (filed herewith)                    84

  9   (a)   Articles of Merger dated January 30, 1981 (1) 
      (b)   Transfer Agency Agreement  dated January 23, 1992 (1)
      (c)   Letter Agreement  dated June 1, 1993 to Transfer
             Agency Agreement adding Growth & Income Fund and 
             Short-Term Bond Fund (1)
      (d)   Amendments dated May 3, 1995 to the Transfer Agency 
             Agreement Fee Schedules for Growth Fund, Aggressive
             Growth Fund, Income Fund, Growth & Income Fund, Income
             Stock Fund, Money Market Fund, and Short-Term Bond Fund (1)
      (e)   Amendment No. 1 to Transfer Agency Agreement dated 
             November 14, 1995 (2)
      (f)   Third Party Feeder Fund Agreement dated May 1, 1996 with
             respect to the S&P 500 Index Fund (5)
      (g)   Letter Agreement to Transfer Agency Agreement dated
              May 1, 1996 adding S&P 500 Index Fund (5)
      (h)   Transfer  Agency  Agreement Fee Schedule dated
              May 1, 1996 for S&P 500 Index Fund (5)
      (i)   Master Revolving Credit Facility Agreement with USAA 
             Capital Corporation dated January 14, 1997 (7)
      (j)   Master Revolving Credit Facility Agreement with 
             NationsBank of Texas dated January 15, 1997 (7)
      (k)   Form of Letter Agreement to Transfer Agency Agreement
             adding Science & Technology Fund and Young Investors
             Growth Fund (filed herewith)                                    90


                                      C-11

<PAGE>

Exhibit              Item                                            Page No. *
- -------              ----                                            ----------

      (l)   Form of Transfer Agency Agreement Fee Schedule
             for Science & Technology Fund (filed herewith)                  92
      (m)   Form of Transfer Agency Agreement Fee Schedule
             for Young Investors Growth Fund (filed herewith)                94

 10   (a)   Opinion of Counsel with respect to the Growth Fund, Income
             Fund, Money Market Fund, Income Stock Fund, Growth &
             Income Fund, and Short-Term Bond Fund (2)
      (b)   Opinion of Counsel with respect to the S&P 500 Index Fund (3)
      (c)   Consent of Counsel with respect to the S&P 500 Index Fund (7
      (d)   Opinion and Consent of Counsel with respect to the Aggressive
             Growth Fund (6)
      (e)   Consent of Counsel with respect Growth Fund, Income Fund,
             Money Market Fund, Income Stock Fund, Growth & Income Fund,
             and Short-Term Bond Fund (6)
      (f)   Opinion and Consent of Counsel with respect to the Science &
             Technology Fund and Young Investors Growth
             Fund (filed herewith)                                           96

 11         Not Applicable
    

 12         Financial Statements omitted from prospectus - Not Applicable

   
 13   (a)   Subscription and Investment Letter for Growth & Income Fund
             and Short-Term Bond Fund (1)
      (b)   Subscription and Investment Letter for S&P 500 Index Fund (5)
      (c)   Form of Subscription and Investment Letter for Science &
             Technology Fund and Young Investors Growth Fund
             (filed herewith)                                                98
    

 14         Prototype Plans
      (a)   USAA INVESTMENT MANAGEMENT COMPANY IRA Handbook (1)
      (b)   USAA INVESTMENT MANAGEMENT COMPANY SEP-IRA Handbook (1)
      (c)   USAA INVESTMENT MANAGEMENT COMPANY 403(b)(7) Handbook (1)

 15         12b-1 Plans - Not Applicable

 16         Schedule for Computation of Performance Quotation (1)

   
 17         Financial Data Schedule - Not Applicable
    

 18         Plan Adopting Multiple Classes of Shares - Not Applicable

   
 19         Powers of Attorney
      (a)   Powers of Attorney for Michael J.C. Roth, Sherron A. Kirk,
             John W. Saunders, Jr., George E. Brown, Howard L. Freeman,
             Jr., and Richard A. Zucker dated November 8, 1993 (1)
      (b)   Power of Attorney for Barbara B. Dreeben dated September 12, 1995(1)
      (c)   With respect to the S&P 500 Index Fund, Powers of Attorney for
             Ronald M. Petnuch, Philip W. Coolidge, Charles P. Biggar,
             S. Leland Dill, and Philip Saunders, Jr., Trustees of the Equity
             500 Index Portfolio, dated September 30, 1996 (7)
      (d)   Power of Attorney for Robert G. Davis (7)
      (e)   Power of Attorney for Robert L. Mason (7)
    


                                      C-12

<PAGE>



(1) Previously filed with Post-Effective Amendment No. 38 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    September 29, 1995.

(2) Previously filed with Post-Effective Amendment No. 39 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    November 21, 1995.

(3) Previously filed with Post-Effective Amendment No. 40 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    February 15, 1996.

(4) Previously filed with Post-Effective Amendment No. 41 of the Registran
    (No. 2-49560) filed with the Securities and Exchange Commission on 
     April 26, 1996.

(5) Previously filed with Post-Effective Amendment No. 42 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    September 11, 1996.

(6) Previously filed with Post-Effective Amendment No. 43 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on
    October 1, 1996.

   
(7) Previously filed with Post-Effective Amendment No. 44 of the Registrant
    (No. 2-49560) filed with the Securities and Exchange Commission on 
    April 21, 1997.
    

- -------------------
   * Refers to sequentially numbered pages

                                      C-13

<PAGE>

                                  EXHIBIT 1(y)



                             ARTICLES SUPPLEMENTARY
                                     TO THE
                       ARTICLES OF INCORPORATION (CHARTER)
                                       OF
                             USAA MUTUAL FUND, INC.


         Articles Supplementary dated May 9, 1997,  supplementing the Charter of
USAA MUTUAL FUND, INC., a Maryland Corporation, as heretofore amended.

                                    ARTICLE I

         USAA MUTUAL FUND,  INC.,  pursuant to the provisions of its Charter and
Section 2-208  of the Maryland  General  Corporation  Law, hereby files Articles
Supplementary for record  evidencing the  classification of 25,000,000 shares of
unissued stock into a new class  designated as the SCIENCE & TECHNOLOGY FUND and
25,000,000  shares of unissued stock into an additional new class  designated as
the YOUNG INVESTORS GROWTH FUND.

                                   ARTICLE II

         Section 2.1 Description of Stock. Without limiting the authority of the
Board of  Directors,  as set forth in the Charter to which  these  supplementary
articles apply,  to establish and designate any further classes of stock,  there
is hereby  established  and  designated a tenth and  eleventh  class of stock in
addition to the nine classes  already  established and designated as the S&P 500
INDEX FUND, the INCOME STOCK FUND, the SHORT-TERM BOND FUND, the GROWTH & INCOME
FUND, the AGGRESSIVE  GROWTH FUND, the INCOME FUND, the GROWTH FUND, the FEDERAL
SECURITIES  MONEY  MARKET FUND and the MONEY  MARKET  FUND.  Such tenth class of
stock shall be designated  the SCIENCE & TECHNOLOGY  FUND and eleventh  class of
stock shall be  designated   the  YOUNG INVESTORS GROWTH  FUND  and  shall  have
the  relative preferences,  rights, voting powers, restrictions,  limitations as
to dividends, qualifications  and terms and  conditions  of  redemption  as are
described  in Article VI of the Articles of Incorporation of the USAA MUTUAL 
FUND, INC.

         Section 2.2 Statement of Authority.  The stock comprising the tenth and
eleventh class of stock of the USAA MUTUAL FUND,  INC.,  has been  classified by
the Board of Directors of USAA MUTUAL FUND, INC., under the authority  contained
in Article V of the Charter of the USAA MUTUAL FUND,  INC., by vote duly adopted
at a meeting of the Board of Directors on May 9, 1997.

         IN WITNESS WHEREOF, USAA MUTUAL FUND, INC. has caused these Articles
Supplementary to be executed by its President and attested by its Secretary 
thereunto duly authorized as of the day and year first above written.


ATTEST:                                             USAA MUTUAL FUND, INC.


By: /S/ ALEX M. CICCONE                             By: /S/ MICHAEL J.C. ROTH
    -------------------------                           -----------------------
     ALEX M. CICCONE                                    MICHAEL J. C. ROTH
     Assistant Secretary                                President


<PAGE>


                                   CERTIFICATE


         The  undersigned  MICHAEL J. C. ROTH,  President  of USAA MUTUAL  FUND,
INC.,  who executed this on behalf of said  corporation  the foregoing  Articles
Supplementary, of which this Certificate is made a part, hereby acknowledges, in
the name of said  corporation,  the foregoing  Articles  Supplementary to be the
corporate  act of  said  corporation  and  certifies  that,  to the  best of his
knowledge, information and belief, that matters and facts set below therein with
respect  to the  approval  thereof  are  true in all  material  respects,  under
penalties of perjury.



                                                    USAA MUTUAL FUND, INC.



                                                    /S/ MICHAEL J.C. ROTH
                                                    ---------------------------
                                                    MICHAEL J. C. ROTH
                                                    President

contract\mf\articles\05-9-97.mf
<PAGE>

                                  EXHIBIT 4(i)



   Number                     USAA MUTUAL FUND, INC.                    Shares

                           SCIENCE AND TECHNOLOGY FUND
              Incorporated Under the Laws of the State of Maryland




Account No.         Alpha Code                             CUSIP
                                                           See Reverse Side for
                                                           Certain Definitions




THIS CERTIFIES that






is the owner of


fully paid and nonassessable  shares of the common stock of the par value of one
cent per  share of USAA  MUTUAL  FUND,  INC.,  transferable  on the books of the
Corporation by the holder thereof in person or by duly authorized  attorney upon
surrender of this certificate  properly endorsed.  This certificate is not valid
unless  countersigned  by the Transfer Agent.  Witness the facsimile seal of the
Corporation and the facsimile signatures of its duly authorized officers.




Dated:



 /s/ Sherron Kirk               PICTURE of               /s/ Michael J.C. Roth
      TREASURER            USAA MUTUAL FUND, INC.              PRESIDENT
                                  SEAL




                                       Countersigned:
                                         USAA SHAREHOLDER ACCOUNT SERVICES
                                          (San Antonio)         TRANSFER AGENT

                                       By
                                                       AUTHORIZED SIGNATURE


<PAGE>


         The following  abbreviations,  when used in the inscription on the face
of this certificate,  shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common           UNIF GIFT MIN ACT -. . .Custodian. . .
TEN ENT - as tenants by the entireties                (Cust)             (Minor)
JT TEN  - as joint tenants with the               under Uniform Gifts to Minors
          right of survivorship and               Act . . . . . .  . . . . . .
          not as tenants in common                           (State)

      Additional abbreviations may also be used though not in the above list.

      FOR VALUE RECEIVED, I/We hereby sell, assign and transfer unto


Please Insert Social Security or Other
Taxpayer Identification Number of Assignee

__________________________________________


_______________________________________________________________________________
             Please Print or Typewrite Name and Address of Assignee

_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
                                                          (                  )
_______________________________________________________________________________
shares of the Capital Stock represented by the within Certificate, and do hereby
irrevocably  constitute  and appoint ________________________________  attorney
to transfer the said stock on the books of the within named  Corporation  with
full power of substitution in the premises.


Dated ______________   Signature(s)____________________________________________


Signature Guaranteed By _______________________________________________________

                                (The  signature(s)  to this  assignment  must
                                correspond  with the name as written upon the
                                face   of   this   certificate,    in   every
                                particular,     without     alteration     or
                                enlargement, or any change whatsoever.)

                                This    certificate   is    transferable   or
                                redeemable  at the  offices  of the  Transfer
                                Agent,  USAA  Shareholder  Account  Services,
                                9800 Fredericksburg Rd., San Antonio, TX 78288.

         The Signature Guarantee must be by an authorized person of a commercial
bank or trust  company  which is a member of the FDIC, a savings bank or savings
and loan  association  which is a member of the FSLIC, a credit union which is a
member  of the  NCUA,  or by a  member  firm of a  domestic  stock  exchange.  A
NOTARIZATION BY A NOTARY PUBLIC IS NOT ACCEPTABLE.


<PAGE>

                                  EXHIBIT 4(j)



   Number                     USAA MUTUAL FUND, INC.                    Shares

                           YOUNG INVESTORS GROWTH FUND
              Incorporated Under the Laws of the State of Maryland




Account No.         Alpha Code                             CUSIP
                                                           See Reverse Side for
                                                           Certain Definitions




THIS CERTIFIES that






is the owner of


fully paid and nonassessable  shares of the common stock of the par value of one
cent per  share of USAA  MUTUAL  FUND,  INC.,  transferable  on the books of the
Corporation by the holder thereof in person or by duly authorized  attorney upon
surrender of this certificate  properly endorsed.  This certificate is not valid
unless  countersigned  by the Transfer Agent.  Witness the facsimile seal of the
Corporation and the facsimile signatures of its duly authorized officers.




Dated:



 /s/ Sherron Kirk               PICTURE of               /s/ Michael J.C. Roth
      TREASURER            USAA MUTUAL FUND, INC.              PRESIDENT
                                  SEAL




                                       Countersigned:
                                         USAA SHAREHOLDER ACCOUNT SERVICES
                                          (San Antonio)         TRANSFER AGENT

                                       By
                                                       AUTHORIZED SIGNATURE


<PAGE>


         The following  abbreviations,  when used in the inscription on the face
of this certificate,  shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common           UNIF GIFT MIN ACT -. . .Custodian. . .
TEN ENT - as tenants by the entireties                (Cust)             (Minor)
JT TEN  - as joint tenants with the               under Uniform Gifts to Minors
          right of survivorship and               Act . . . . . .  . . . . . .
          not as tenants in common                           (State)

      Additional abbreviations may also be used though not in the above list.

      FOR VALUE RECEIVED, I/We hereby sell, assign and transfer unto


Please Insert Social Security or Other
Taxpayer Identification Number of Assignee

____________________________________________


_______________________________________________________________________________
             Please Print or Typewrite Name and Address of Assignee

_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
                                                          (                  )
_______________________________________________________________________________
shares of the Capital Stock represented by the within Certificate, and do hereby
irrevocably  constitute  and appoint ________________________________  attorney
to transfer the said stock on the books of the within named  Corporation  with
full power of substitution in the premises.


Dated ______________   Signature(s)____________________________________________


Signature Guaranteed By _______________________________________________________

                                (The  signature(s)  to this  assignment  must
                                correspond  with the name as written upon the
                                face   of   this   certificate,    in   every
                                particular,     without     alteration     or
                                enlargement, or any change whatsoever.)

                                This    certificate   is    transferable   or
                                redeemable  at the  offices  of the  Transfer
                                Agent,  USAA  Shareholder  Account  Services,
                                9800 Fredericksburg Rd., San Antonio, TX 78288.

         The Signature Guarantee must be by an authorized person of a commercial
bank or trust  company  which is a member of the FDIC, a savings bank or savings
and loan  association  which is a member of the FSLIC, a credit union which is a
member  of the  NCUA,  or by a  member  firm of a  domestic  stock  exchange.  A
NOTARIZATION BY A NOTARY PUBLIC IS NOT ACCEPTABLE.

<PAGE>

                                  EXHIBIT 5(g)


USAA Investment Management Company
10750 Robert F. McDermott Freeway
San Antonio, TX  78288

Gentlemen:

       Pursuant to Section 1(b) of the Advisory  Agreement dated as of September
21, 1990 between USAA Mutual Fund,  Inc.  (the  "Company")  and USAA  Investment
Management  Company  (the  "Manager"),  please be advised  that the  Company has
established two new series of its shares,  namely, the Science & Technology Fund
and the Young Investors Growth Fund (the "Funds"), and please be further advised
that the Company desires  to retain the  Manager to render  management  and  
investment advisory services under the Advisory Agreement to the Funds at the 
fee stated below:

                              Advisory Fee Schedule

                       Three-fourths of one percent (.75%)
                   of the aggregate average net assets of the
                           Science & Technology Fund.

                       Three-fourths of one percent (.75%)
                   of the aggregate average net assets of the
                          Young Investors Growth Fund.

       Please state below whether you are willing to render such services at the
fee stated above.

                                                    USAA MUTUAL FUND, INC.


Attest:                                             By: 
        ------------------------                        -----------------------
        Secretary                                       President


Dated:______________________


       We as the sole  shareholder  of the above named Funds,  do hereby approve
the  Advisory  Agreement  and are willing to render  management  and  investment
advisory  services to the Science &  Techonology  Fund and the Young Investors
Growth Fund at the fee stated above.

                                                    USAA INVESTMENT MANAGEMENT
                                                     COMPANY


Attest:                                             By:  
        -------------------------                        ----------------------
        Assistant Secretary                              Senior Vice President


Dated:______________________

contract\mf\advisory\advmfsci.pwr
<PAGE>

                                  EXHIBIT 6(d)



USAA Investment Management Company
10750 Robert F. McDermott Freeway
San Antonio, TX  78288


Gentlemen:

         Pursuant to paragraph 12 of the Underwriting Agreement dated as of July
25, 1990 between USAA Mutual Fund,  Inc.  (the  "Company")  and USAA  Investment
Management Company (the  "Underwriter"),  please be advised that the Company has
established two new series of its shares,  namely, the Science & Technology Fund
and the Young Investors Growth Fund ("the Funds"), and please be further advised
that the Company desires to retain the Underwriter to sell and distribute shares
of the Funds and to render other services to the Funds as provided in the 
Underwriting Agreement.

         Please state below  whether you are willing to render such  services as
provided in the Underwriting Agreement.

                                                    USAA MUTUAL FUND, INC.



Attest:                                              By: 
        -------------------------                        ----------------------
        Secretary                                        President


Dated: _______________________


         We are willing to render  services to the Science & Technology Fund and
the Young Investors Growth Fund as set forth in the Underwriting Agreement.

                                              USAA INVESTMENT MANAGEMENT COMPANY



Attest:                                        By: 
        ---------------------------                ----------------------------
        Assistant Secretary                        Senior Vice President


Dated: ___________________

contract\mf\underwri.tng\sci-tech.pwr
<PAGE>

                                  EXHIBIT 8(m)



State Street Bank and Trust Company
1776 Heritage Drive
North Quincy, MA  02171


Gentlemen:

         Pursuant to Section 12 of the Custodian  Agreement dated as of November
3, 1982 between USAA Mutual Fund, Inc. (the "Company") and State Street Bank and
Trust  Company  (the  "Custodian"),  please  be  advised  that the  Company  has
established two new series of its shares,  namely, the Science & Technology Fund
and the Young Investors Growth Fund (the "Funds"), and please be further advised
that the Company desires to retain the Custodian to render  custody  services
under the Custodian Agreement to the Funds in accordance  with the fee schedule
attached  hereto as Exhibit A.

         Please state below  whether you are willing to render such  services in
accordance with the fee schedule attached hereto as Exhibit A.

                                                    USAA MUTUAL FUND, INC.



Attest:                                             By: 
        ---------------------                           -----------------------
        Secretary                                       President


Dated:


         We are willing to render  custody  services to the Science & Technology
Fund and the Young Investors Growth Fund in accordance with the fee schedules
attached hereto as Exhibit A.

                                            STATE STREET BANK AND TRUST COMPANY



Attest:                                     By: 
        --------------------                    -------------------------------


Dated: ____________________



contract\mf\custodia.n\cusmfsci.pwr

<PAGE>

                      STATE STREET BANK AND TRUST COMPANY
                             CUSTODIAN FEE SCHEDULE

                          USAA TAX - EXEMPT FUND, INC.
                             USAA INVESTMENT TRUST
                             USAA MUTUAL FUND, INC.
                           USAA STATE TAX FREE TRUST

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

I.   Custody, Portfolio and Fund Accounting Services - Mantain investment 
     ledgers, provide selected portfolio transactions, position and income 
     reports.  Maintain general ledger, and capital stock accounts.  Prepare
     daily trial balance.  Calculate net asset value daily.  Provide selected
     general ledger reports.  Securities yield or market value quotations will
     be provided to State Street by the fund or via State Streets Automated
     Pricing service.

     The administration fee shown below is an annual charge, in basis points,
     billed and payable monthly, based on average monthly net assets.

                           ANNUAL FEES PER PORTFOLIO
                           -------------------------

                            Annual Full Service Fees
                            ------------------------

     First 50 Million                             3.50 Basis Points
     Next 50 Million                              2.50 Basis Points
     Next 100 Million                             1.50 Basis Points
     Excess                                        .85 Basis Points

     Minimum Monthly Charge                    $2,000.00

II.  Portfolio Trades - For Each Line Item Processed
     -----------------------------------------------

     State Street Bank Repos                                $ 7.00
     DTC or Fed Book Entry                                  $12.00
     Boston/New York Physical                               $25.00
     PTC Buy/Sell                                           $20.00
     All Other Trades                                       $16.00
     Maturity Collections (NY Physical)                     $ 8.00
     Option Charge for each option written or
     closing contract, per issue, per broker                $25.00
     Option expiration/Option exercised                     $15.00
     Interest Rate Futures -- no security movement          $ 8.00
     Monitoring for calls and processing coupons --
     for each coupon issue held -- monthly charge           $ 5.00
     Principal Reduction Payments Per Paydown               $10.00
     Interest/Dividend Claim Charges
     (For items held at the Request of Traders
     over record date in street form)                       $50.00

III. Holdings Charge
     ---------------

     Per Security per Month (Domestic Securities Only)      $ 5.00

<PAGE>    

                      STATE STREET BANK AND TRUST COMPANY
                             CUSTODIAN FEE SCHEDULE

                          USAA TAX - EXEMPT FUND, INC.
                             USAA INVESTMENT TRUST
                             USAA MUTUAL FUND, INC.
                           USAA STATE TAX FREE TRUST

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

IV.    Affirmation Charge
       ------------------

       Per Affirmation per Month                              $ 1.00

V.     Global Custody
       --------------

       U.S. Equivalent Market Value                     13.75 Basis Points
       Euroclear                                         5.00 Basis Points

VI.    Automated Pricing Via NAVigator
       -------------------------------

       Monthly Base Fee:
       Funds with International Holdings                      $375.00
       All other Funds                                        $300.00

       Monthly Quote Charge:

       - Municipal Bonds via Muller Data                      $ 10.00
       - Municipal Bonds via Kenny Information Systems        $ 16.00
       - Government, Corporate and Convertible Bonds
         via Merrill Lynch                                    $ 11.00
       - Corporate and Government Bonds via Muller Data       $ 11.00
       - Options, Futures and Private Placements              $  6.00
       - Foreign Equities and Bonds via Extel Ltd.            $  6.00
       - Listed Equities, OTC Equities, and Bonds             $  6.00
       - Corporate, Municipal, Convertible and
         Government Bonds, Adjustable Rate Preferred
         Stocks via IDSI                                      $ 12.00

VII.   Shareholder Check-Writing Service
       ---------------------------------

       Per check presented for payment
       (excluding postage)                                    $   .65

VIII.  Advertised Yield Service
       ------------------------

       Annual Maintenance Fee:

       For each portfolio maintained, monthly charge is based on the number of
       holding as followed:

<PAGE>


                      STATE STREET BANK AND TRUST COMPANY
                             CUSTODIAN FEE SCHEDULE

                          USAA TAX - EXEMPT FUND, INC.
                             USAA INVESTMENT TRUST
                             USAA MUTUAL FUND, INC.
                           USAA STATE TAX FREE TRUST

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

          Holding per Portfolio                            Monthly Charge
          ---------------------                            --------------

               0 to 50                                           $250.00
              50 to 100                                          $300.00
               Over 100                                          $350.00

IX.    Special Services
       ----------------

     Fees for activities of a non-recurring nature such as fund consolidations
     or reorganizations, extraordinary security shipments and the preparation 
     of special reports will be subject to negotiation.  Fees for yield
     calculation, securities lending, and other special items will be negotiated
     separately.

X.     Out-of-Pocket Expenses
       ----------------------

     A billing for the recovery of applicable out-of-pocket expenses will be 
     made as of the end of each month.  Out-of-pocket expenses include, but
     are not limited to the following:

          Telephone/Telex
          Wire Charges ($5.25 per wire and $5.00 out)
          Postage and Insurance (includes check writing postage)
          Courier Service
          Duplicating
          Legal Fees
          Supplies Related to Fund Records
          Rush Transfer - $8.00 Each
          Transfer Fees
          Sub-Custodian Charges
          Price Waterhouse Audit Letter
          Federal Reserve Fee for Return Check items over $2,500 - $4.25
          (Bill directly to USAA Transfer Agency Company)
          GNMA Transfer - $15 each
          PTC Deposit/Withdrawal for same day turnarounds - $50.00
<PAGE>


                      STATE STREET BANK AND TRUST COMPANY
                             CUSTODIAN FEE SCHEDULE

                          USAA TAX - EXEMPT FUND, INC.
                             USAA INVESTMENT TRUST
                             USAA MUTUAL FUND, INC.
                           USAA STATE TAX FREE TRUST



USAA TAX EXEMPT FUND, INC.
USAA INVESTMENT TRUST
USAA MUTUAL FUND, INC.
USAA STATE TAX FREE TRUST                    STATE STREET BANK & TRUST CO.



BY:  /s/ SHERRON KIRK                        BY: /s/ MARGUERITE SUMMERS
    -----------------------                      ----------------------------
    Sherron Kirk                                 Marguerite Summers

TITLE:  TREASURER                            TITLE:  VICE PRESIDENT

DATE:  10-4-94                               DATE:  9/28/94
<PAGE>

                                  EXHIBIT 9(k)


USAA Transfer Agency Company
10750 Robert F. McDermott Freeway
San Antonio, TX  78288


Gentlemen:

         Pursuant to Section 27 of the  Transfer  Agency  Agreement  dated as of
January 23, 1992  between  USAA  Mutual  Fund,  Inc.  (the  "Company")  and USAA
Transfer  Agency  Company,  (the  "Transfer  Agent")  please be advised that the
Company  has  established  two new series of its shares,  namely,  the Science &
Technology Fund and the Young Investors Growth Fund (the "Funds"), and please be
further advised that the Company  desires to retain the Transfer Agent to render
transfer agency services under the Transfer Agency Agreement to the Funds in 
accordance with the fee schedules attached hereto as Exhibit A.

         Please state below  whether you are willing to render such  services in
accordance with the fee schedules attached hereto as Exhibit A.

                                                    USAA MUTUAL FUND, INC.



Attest:                                              By: 
        ---------------------                            ----------------------
        Secretary                                        President


Dated: ____________________


         We are willing to render  services to the Science & Technology Fund and
the Young Investors Growth Fund in accordance  with the fee schedules  attached
hereto as Exhibit A.

                                                   USAA TRANSFER AGENCY COMPANY



Attest:                                             By: 
        ----------------------                          -----------------------
        Assistant Secretary                             Vice President


Dated: ____________________



<PAGE>


                                  EXHIBIT 9(l)
          
                                                                      Exhibit A



                          USAA TRANSFER AGENCY COMPANY

                         Fee Information for Services as
                  Plan, Transfer and Dividend Disbursing Agent

                             USAA MUTUAL FUND, INC.
                            Science & Technology Fund



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

General - Fees are based on an annual per shareholder account charge for account
maintenance plus out-of-pocket expenses. There is a minimum charge of $2,000 per
month applicable to the entire fund complex.

Annual  Maintenance  Charges  -  The  annual  maintenance  charge  includes  the
processing  of all  transactions  and  correspondence.  The fee is billable on a
monthly  basis at the  rate of 1/12 of the  annual  fee.  USAA  Transfer  Agency
Company  will charge for each open  account from the month the account is opened
through  January of the year  following the year all funds are redeemed from the
account.


     Science & Technology Fund - charge per account                   $23.50


USAA MUTUAL FUND, INC.                            USAA TRANSFER AGENCY COMPANY
Science & Technology Fund




By:                                               By: 
    -------------------------                         -------------------------
    Michael J. C. Roth                                Joseph H. L. Jimenez
    President                                         Vice President




Date: ______________________                        Date: ____________________









contract\mf\transfer\ta-mfsci.pwr


<PAGE>
                                  EXHIBIT 9(m)



                          USAA TRANSFER AGENCY COMPANY

                         Fee Information for Services as
                  Plan, Transfer and Dividend Disbursing Agent

                             USAA MUTUAL FUND, INC.
                           Young Investors Growth Fund



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

General - Fees are based on an annual per shareholder account charge for account
maintenance plus out-of-pocket expenses. There is a minimum charge of $2,000 per
month applicable to the entire fund complex.

Annual  Maintenance  Charges  -  The  annual  maintenance  charge  includes  the
processing  of all  transactions  and  correspondence.  The fee is billable on a
monthly  basis at the  rate of 1/12 of the  annual  fee.  USAA  Transfer  Agency
Company  will charge for each open  account from the month the account is opened
through  January of the year  following the year all funds are redeemed from the
account.


     Young Investors Growth Fund - charge per account            $23.50


USAA MUTUAL FUND, INC.                            USAA TRANSFER AGENCY COMPANY
Young Investors Growth Fund




By:                                               By:
    -------------------------                        -------------------------
    Michael J. C. Roth                                Joseph H. L. Jimenez
    President                                         Vice President




Date: _____________________                       Date: ______________________


Contract\mf\transfer\ta-mfsci.pwr
<PAGE>


                          GOODWIN, PROCTER & HOAR LLP
                               COUNSELLORS AT LAW
                                 EXCHANGE PLACE
                        BOSTON MASSSACHUSETTS 02109-2881

                                                       TELEPHONE (617) 570-1000
                                                      TELECOPIER (617) 523-1231

                                  May 15, 1997

USAA Mutual Fund, Inc.
USSA Building
9800 Fredericksburg Road
San Antonio, Texas  78288

Ladies and Gentlemen:

     As counsel to USAA Mutual Fund, Inc. (the "Company"), a Maryland 
corporation, we have been asked to render our opinion with respect to the
issuance of shares of capital stock, $.01 par value per share, of the Science
& Technology Fund and the Young Investors Growth Fund (the "Shares"), classes of
capital stock of the Company that have been established and designated in the
Company's Articles of Incorporation and Articles Supplementary to the Articles
of Incorporation, as amended (collectively, the "Articles"), all as more fully
described in the Prospectus and the Statement of Additional Information 
contained in Post-Effective Amendment No. 45 (the "Amendment") to the 
Registration Statement (No. 2-49560) on Form N-1A (the "Registration Statement")
to be filed by the Company with the Securities and Exchange Commission.

     We have examined the Articles, the By-Laws of the Company, as amended, the
minutes of certain meetings of and resolutions adopted by the Board of Directors
of the Company, the Prospectuses and Statement of Additional Information 
contained in the Amendment and such other documents, records and certificates as
we deemed necessary for the purposes of this opinion.

     Based upon the foregoing, and assuming that not more than (i) 25,000,000 
Shares of the Science & Technology Fund or (ii) 25,000,000 Shares of the Young
Investors Growth Fund will be issued and outstanding at any time, we are of the
opinion that the Shares will, when sold in accordance with the terms of the
Prospectuses and Statement of Additional Information in effect at the time of 
the sale, be legally issued, fully paid and non-assessable.

     We hereby consent to being named in the Prospectuses and the Statement of
Additional Information contained in the Amendment and to a copy of this 
opinion being filed as an exhibit to the Amendment.

                                        Very truly yours,


                                        /s/ GOODWIN, PROCTER & HOAR LLP
                                        ------------------------------------
                                        GOODWIN, PROCTER & HOAR LLP
DOCSC\515957.1
<PAGE>

                                 EXHIBIT 13(c)


                                  SUBSCRIPTION





                                                     ___________________, 1997




TO:     Board of Directors
        USAA Mutual Fund, Inc.
        10750 Robert F. McDermott Freeway
        San Antonio, TX  78288


Dear Sirs:

        The  undersigned  hereby  subscribes  to 10  shares  of  the  Science  &
Technology Fund and 10 shares of the Young Investors Growth Fund series, on
______________,  with one cent par value, of USAA Mutual Fund, Inc. at a price 
of $10.00 per share for each Fund and agrees to pay therefore upon demand, cash
in the amount of $100 to each of the named Funds.

                                         Very truly yours,

                                         USAA INVESTMENT MANAGEMENT COMPANY



                                                                    
                                              --------------------------------
                                         By:  MICHAEL J. C. ROTH
                                              President

contract\mf\subsci.pwr
<PAGE>







                                                ____________________, 1997



USAA Mutual Fund, Inc.
10750 Robert F. McDermott Freeway
San Antonio, TX  78288


Gentlemen:

        In  connection  with  your  sale to us on  ________________  of ten (10)
shares of capital stock representing  interests in the Science & Technology Fund
and ten (10) shares of capital stock  representing  interests in the Young
Investors Growth Fund, we  understand  that:  (i) your sale of the Shares to us
is made in  reliance on such sale being exempt under  Section 4(2) of the 1933
Act as not  involving any public offering; and (ii) in part, your reliance on 
such exemption is predicated on our representation, which we hereby confirm, 
that we are acquiring the Shares for investment for our own account as the sole
beneficial owner thereof, and not with a view to or in connection with any
resale or distribution of the shares or of any  interest  therein.  We hereby
agree  that we will not  sell,  assign or transfer  the  Shares  or  any  
interest therein, except  upon repurchase or redemption  by the Company,  unless
and until the Shares  have been  registered under the 1933 Act or you have 
received an opinion of your counsel indicating to your  satisfaction  that said
sale,  assignment or transfer will not violate the provisions of the 1933 Act or
any rules or regulations promulgated thereunder.

                                          Very truly yours,

                                          USAA INVESTMENT MANAGEMENT COMPANY



                                          By: 
                                              ------------------------------
                                              MICHAEL J. C. ROTH
                                              President

contract\mf\subsci.pwr
<PAGE>


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