USAA MUTUAL FUND INC
485APOS, 1998-09-30
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  As filed with the Securities and Exchange Commission on September 30, 1998.
    
                                                     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. 49
    
                                      and

       REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 X
   
                                Amendment No. 37
    
                             USAA MUTUAL FUND, INC.
               -------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)
   
                 9800 Fredericksburg Road, 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 Road
    
                           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)
   
_X_ on December 1, 1998, pursuant to paragraph (a)(1)
    
___ 75 days after filing pursuant to paragraph (a)(2)
___ on (date) 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.
   
                       Exhibit Index on Pages 247 - 250
                                                                 Page 1 of 272
    

<PAGE>

                             USAA MUTUAL FUND, INC.

                             CROSS REFERENCE SHEET

                                     PART A
                                     ------

FORM N-1A ITEM NO.                        SECTION IN PROSPECTUS
   
1. Front and Back Cover Pages..........   Same

2. Risk/Return Summary: Investments,
    Risks, and Performance.............   What is the Fund's Investment
                                           Objective and Main Strategy?
                                          Main Risks of Investing in This Fund
                                          Could the Value of Your Investment
                                           in This Fund Fluctuate?

3. Risk/Return Summary: Fee Table.....    Fees and Expenses

4. Investment Objectives, Principal
    Investment Strategies, and
    Related Risks.....................    What is the Fund's Investment
                                          Objective and Main Strategy?
                                          Fund Investments

5. Management's Discussion
    of Fund Performance...............    Not Applicable

6. Management, Organization, and
    Capital Structure.................    Fund Management

7. Shareholder Information............    How to Invest
                                          Important Information About Purchases
                                           and Redemptions
                                          Exchanges
                                          Shareholder Information

8. Distribution Arrangements..........    Not Applicable

9. Financial Highlights Information...    Financial Highlights
    
<PAGE>

                             USAA MUTUAL FUND, INC.

                             CROSS REFERENCE SHEET

                                     PART B
                                     ------

FORM N-1A ITEM NO.                        SECTION IN STATEMENT OF ADDITIONAL
                                          INFORMATION
   
10. Cover Page and Table of Contents....  Same

11. Fund History........................  Description of Shares

12. Description of the Fund and
     Its Investments and Risks..........  Investment Policies
                                          Investment Restrictions
                                          Portfolio Transactions

13. Management of the Fund..............  Directors and Officers of the Company

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

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

16. Brokerage Allocation and
     Other Practices....................  Portfolio Transactions

17. Capital Stock and
     Other Securities...................  Description of Shares

18. Purchase, Redemption, and
     Pricing of Shares..................  Valuation of Securities
                                          Conditions of Purchase and Redemption
                                          Additional Information Regarding
                                           Redemption of Shares
                                          Investment Plans

19. Taxation of the Fund................  Tax Considerations

20. Underwriters........................  The Company's Manager

21. Calculation of Performance Data.....  Calculation of Performance Data

22. Financial Statements................  Cover Page
    
<PAGE>

                                     Part A
   
                              Prospectuses for the

           Aggressive Growth Fund, Growth Fund, Growth & Income Fund,
             Income Stock Fund, Income Fund, Short-Term Bond Fund,
               Money Market Fund, Science & Technology Fund, and
                            First Start Growth Fund

                              are included herein

                 Not included in this Post-Effective Amendment
                           is the Prospectus for the

                               S&P 500 Index Fund

<PAGE>

                                     Part A

                               Prospectus for the

                             Aggressive Growth Fund

                               is included herein
    
<PAGE>
                                USAA AGGRESSIVE
                                  GROWTH FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    

                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy?.............  2
Main Risks of Investing in This Fund...................................  2
Is This Fund for You?..................................................  3
Could the Value of Your Investment in This Fund Fluctuate?.............  3
Fees and Expenses......................................................  4
Fund Investments.......................................................  5
Fund Management........................................................  7
Using Mutual Funds in an Investment Program............................  9
How to Invest.......................................................... 10
Important Information About Purchases and Redemptions.................. 13
Exchanges.............................................................. 14
Shareholder Information................................................ 14
Financial Highlights................................................... 18
Appendix A ............................................................ 19
Appendix B ............................................................ 20
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's  investment  objective is capital  appreciation.  We will attempt to
achieve  this  objective  by investing  the Fund's  assets  primarily in equity
securities of companies with the prospect of rapidly growing earnings.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing  in this Fund are market risk and the risks of
investing in small capitalization companies.

*   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities will decline because of falls in the stock market,  reducing the
    value of individual  company's stocks  regardless of the success or failure
    of an individual company's operations.

*   SMALL CAPITALIZATION COMPANY RISK involves the greater risk of investing in
    smaller  less  well-known  companies,  especially  those that have a narrow
    product line or are traded  infrequently,  than  investing  in  established
    companies with proven track records.

Other risks of the Fund described later in the Prospectus  include the risks of
foreign investing and investing in real estate  investment  trusts (REITs).  As
with other mutual funds,  losing money is an additional  risk  associated  with
investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An  investment  in this Fund is not a deposit of USAA Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.
    
                                       2
<PAGE>

IS THIS FUND FOR YOU?

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

   * You are willing to accept very high risk.
   * You are looking for a long-term investment.
   * You are willing to give up current income for long-term growth.

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

   * You are unwilling to take greater risk for long-term goals.
   * You are unable or reluctant to invest for a period of seven years or more.
   * You need an investment that provides steady income.
   * You need an investment that provides tax-free income.

   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or  decrease.  While the  portfolio  will be broadly  diversified,  we
expect the Fund to be  significantly  more  volatile  than the  average  equity
mutual fund due to the Fund's investments in smaller less well-known companies.
The bar chart shown below  illustrates  the Fund's  volatility and  performance
from year to year over the past ten years.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                DISTRIBUTIONS.

[BAR CHART]
                   CALENDAR           TOTAL 
                     YEAR            RETURN

                     1988            14.25%
                     1989            16.59%
                     1990           -11.92%
                     1991            71.69%
                     1992            -8.51%
                     1993             8.14%
                     1994             -.81%
                     1995            50.42%
                     1996            16.47%
                     1997             7.56%

         THE FUND'S TOTAL RETURN FOR THE NINE-MONTH  PERIOD ENDED SEPTEMBER 30,
         1998, WAS _____%.

                                       3
<PAGE>

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 28.32%  (quarter ending March 31, 1991) and the lowest total return
for a quarter was -27.50% (quarter ending September 30, 1990).

The table  below  shows how the Fund's  average  annual  returns  for the one-,
five-,  and ten-year  periods as well as the life of the Fund compared to those
of broad-based securities market index.  Remember,  historical performance does
not necessarily indicate what will happen in the future.

===============================================================================
Average  Annual Total Returns 
(for the periods ending           Past        Past          Past        Life of
December 31, 1997)               1 Year      5 Years      10 Years     the Fund
===============================================================================
Aggressive Growth Fund           7.56%       15.11%        14.05%        12.12%
- -------------------------------------------------------------------------------
Russell 2000 Index*             22.36%       16.40%        15.77%        14.40%
===============================================================================
* THE  RUSSELL  2000 INDEX IS AN INDEX WHICH  CONSISTS OF  THE 2,000  SMALLEST
  COMPANIES IN THE RUSSELL 3000(R)INDEX, A WIDELY RECOGNIZED SMALL CAP INDEX.
    
                              [TELEPHONE GRAPHIC]
                                 TouchLINE (R)
                                1-800-531-8777
                                     PRESS
                                       1
                                     THEN
                                       1
                                     THEN
                                     3 8 #
   
Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  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 38# when asked for the Fund Code.
    
                                NEWSPAPER SYMBOL
                                     AgvGt
   
                                 TICKER SYMBOL
                                     USAUX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "AgvGt." If you prefer to obtain this  information  from an on-line
computer service, you can do so by using the ticker symbol "USAUX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as 

                                       4
<PAGE>

custodian  and  transfer  agent fees.  The figures on the next page show actual
expenses during the past fiscal year ended July 31, 1998, and are calculated as
a percentage of average net assets.

                                 12B-1 FEES -
                               SOME MUTUAL FUNDS
                               CHARGE THESE FEES
                                  TO PAY FOR
                                ADVERTISING AND
                                OTHER COSTS OF
                              SELLING FUND SHARES.

           Management Fees                       .38%
           Distribution (12b-1) Fees             None
           Other Expenses                        .33%
                                                 ----
           Total Annual Fund Operating Expenses  .71%
                                                 ====

Example of Effect of Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                     1  year.......... $   73
                     3  years.........    227
                     5  years.........    395
                    10  years.........    883
    
FUND INVESTMENTS
   
Principal Investment Strategies and Risks
    
   Q   What is the Fund's principal investment strategy?
   
   A   The Fund's principal  investment strategy is to invest the Fund's assets
       primarily in equity securities of companies with the prospect of rapidly
       growing  earnings.  These  investments  will tend to be made in smaller,
       less  recognized   companies,   but  may  include  larger,  more  widely
       recognized  companies as well.  We use the term "equity  securities"  to
       include common stocks,  preferred  stocks,  securities  convertible into
       common  stocks,  and  securities  which  carry the  right to buy  common
       stocks.  We may also invest up to 10% of the Fund's  assets in shares of
       real estate investment trusts (REITs).

       As a temporary defensive measure because of market, economic, political,
       or other  conditions,  we may invest up to 100% of the Fund's  assets in
       investment-grade,  short-term  debt instruments, which may result in the
       Fund  not achieving  its  investment objective during  the time it is in
       this temporary defensive posture.
    
                                       5
<PAGE>

       We will  not  generally  trade  the  Fund's  securities  for  short-term
       profits;  however,  if circumstances  warrant,  we may purchase and sell
       Fund  securities  without  regard to the length of time held. The Fund's
       portfolio  turnover 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.

   
[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

[CAUTION LIGHT]
SMALL CAPITALIZATION  COMPANY RISKS. Small cap companies may be more vulnerable
than larger companies to adverse business or economic  developments.  Small cap
companies may also have limited product lines, markets, or financial resources.
Securities  of such  companies  may be  less  liquid  and  more  volatile  than
securities of larger  companies or the market averages in general and therefore
may involve greater risk than investing in larger companies. In addition, small
cap  companies may not be  well-known  to the  investing  public,  may not have
institutional ownership, and may have only cyclical, static, or moderate growth
prospects.

[CAUTION LIGHT]
REITs.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated with the direct  ownership of real estate.  Additionally,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification, and could be significantly impacted by changes in tax laws.
    

   Q   May the Fund's assets be invested in foreign securities?

   
   A   Yes.  While  most  of  the  Fund's  assets  will  be  invested  in  U.S.
       securities,  we may also invest up to 30% of the Fund's  total assets in
       foreign  securities  purchased in either  foreign or U.S. markets. These
       foreign  holdings may include  securities  issued in emerging markets as
       well as securities issued in established markets.

[CAUTION LIGHT]
FOREIGN  INVESTING.   Investing  in  foreign  securities,   including  American
Depositary Receipts (ADRs) and Global Depositary Receipts (GDRs),  poses unique
risks:  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  legal  judgments.  In the  past,  equity  and debt

                                       6
<PAGE>

instruments  of foreign  markets have been more  volatile  than equity and debt
instruments of U.S. securities markets.

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A U.S. OR
                                  FOREIGN BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.
    

*   EMERGING  MARKETS  RISK.  A country  that is in the  initial  stages of its
    industrial   cycle  is  considered  to  be  an  emerging  markets  country.
    Investments in developing countries involve exposure to economic structures
    that are generally less diverse and mature than in the United States and to
    political  systems  which  may be less  stable.  In the  past,  markets  of
    developing  countries have been more volatile than the markets of developed
    countries.

*   POLITICAL  RISK.  Political  risk  includes a greater  potential  for coups
    d'etat,  revolts,  and  expropriation  by governmental  organizations.  For
    example,  we may  invest the  Fund's  assets in  Eastern  Europe and former
    states of the Soviet Union (also known as the  Commonwealth  of Independent
    States or CIS).  These  countries  were under  communist  systems which had
    nationalized  private industry.  There is no guarantee that nationalization
    may not occur  again in this  region or others in which we may  invest  the
    Fund's  assets,  in  which  case,  we may  lose  all or part of the  Fund's
    investment in that country's issuers.

   
   Q   How are the decisions to buy and sell securities made?

   A   We tend to  invest in small  capitalization  companies  that have  rapid
       sales and earnings  growth  potential.  We seek  companies that are well
       positioned to take advantage of emerging  long-term  social and economic
       trends and have ample  financial  resources to sustain their growth.  We
       may reduce or sell the Fund's  investments  in  companies if their stock
       prices appreciate excessively in relation to fundamental  prospects.  We
       will  sell  or  reduce  large  capitalization  equity  holdings  in  the
       portfolio if those  holdings  comprise an  excessive  weighting of total
       assets. Companies will also be sold if they fail to realize their growth
       potential or if there are more attractive opportunities elsewhere.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.
    
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

                                       7
<PAGE>

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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. This fee, which is accrued daily and paid monthly, is computed as a
percentage  of average  net  assets.  The fee is  computed  at  one-half of one
percent  (.50%) of the first $200 million of average net assets,  two-fifths of
one  percent  (.40%) for that  portion of average  net assets in excess of $200
million but not over $300 million, and one-third of one percent (.33%) for that
portion of average net assets in excess of $300  million.  The fees we received
for the  fiscal  year ended July 31,  1998,  were equal to .38% of average  net
assets.  We also  provide  services  related to selling  the Fund's  shares and
receive no compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

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 Managers
   
The following individuals are primarily responsible for managing the Fund. John
K.  Cabell,  Jr.  and  Eric M.  Efron,  Assistant  Vice  Presidents  of  Equity
Investments, have managed the Fund since March 1995.

From Left to Right:    [PHOTOGRAPH OF PORTFOLIO MANAGERS]
                     ERIC M. EFRON AND JOHN K. CABELL, JR.

                                       8
<PAGE>

Mr. Cabell has 20 years investment  management experience and has worked for us
for nine years. He served as Chief Economist for Retirement  Systems of Alabama
from March 1991 to March 1994. He earned the Chartered  Financial Analyst (CFA)
designation  in  1982  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 MA and a BS from the University of Alabama.

Mr. Efron has 23 years investment  management  experience and has worked for us
for six years.  He earned the CFA  designation  in 1983 and is also a member of
AIMR and  SAFAS.  He holds  an MBA  from  New York  University,  an MA from the
University of Michigan, and a BA from Oberlin College, Ohio.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example,  assume you wish to invest in a  widely-diversified,  common stock
portfolio.  You could combine an investment in the Aggressive  Growth Fund with
investments  in other  mutual  funds  that  invest in stocks of large and small
companies  and  high-dividend  stocks.  This is just one way you could  combine
funds to fit your own risk and reward goals.
    
                                       9
<PAGE>

III. USAA's Family of Funds
   
We offer you another  alternative for asset  allocation with our asset strategy
funds  listed in APPENDIX B under asset  allocation  on page 20.  These  unique
mutual funds provide a professionally-managed, diversified investment portfolio
within a mutual fund.  Designed for the  individual who prefers to delegate the
asset allocation  process to an investment  manager,  their structure  achieves
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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 20 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    
                                      10
<PAGE>

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
* $3,000 [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts and
  $250  for  IRAs]  or no  initial  investment  if you  elect  to have  monthly
  electronic  investments  of at least  $50  each.  We may  periodically  offer
  programs that reduce the minimum amounts for monthly electronic  investments.
  Employees of USAA and its  affiliated  companies may open an account  through
  payroll  deduction  for as  little  as $25 per  pay  period  with no  initial
  investment.

ADDITIONAL PURCHASES

*   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
* To open an account, send your application and check to:
    USAA Investment Management Company
    9800 Fredericksburg Road
    San Antonio, TX 78288
* To add to your account,  send  your  check and the "Invest by Mail" stub that
  accompanies your Fund's transaction confirmation to the Transfer Agent:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288

IN PERSON
   
[HANDSHAKE GRAPHIC]
* To open an account, bring your application and check to:
    USAA Investment Management Company
    USAA Federal Savings Bank
    10750 Robert F. McDermott Freeway
    San Antonio, TX 78288
    
BANK WIRE
   
[WIRE GRAPHIC]
* Instruct  your bank  (which may  charge a fee for the  service)  to  wire the
  specified amount to the Fund as follows:
    State Street Bank and Trust Company
    Boston, MA 02101
    ABA#011000028
    Attn: USAA Aggressive Growth Fund
    USAA Account Number: 69384998
    Shareholder(s) Name(s)__________________________________________
    Shareholder(s) Mutual Fund Account Number_______________________
    
                                      11
<PAGE>

Electronic Funds Transfer

[CALENDAR GRAPHIC]
* Additional  purchases  on a  regular  basis  can  be  deducted  from  a  bank
  account, paycheck,  income-producing  investment, or USAA  money market  fund
  account.  Sign  up for  these  services  when  opening  an  account  or  call
  1-800-531-8448 to add these services.

Phone 1-800-531-8448
   
[TELEPHONE GRAPHIC]
* If you  have an  existing  USAA mutual fund  account and would like to open a
  new account  or exchange to another  USAA  Fund,  call for  instructions.  To
  open an account by  phone,  the new account must have  the same  registration
  as your existing account.
    
Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
In  addition,  the  Company may elect to suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
* Send your written instructions to:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288
* Send a signed fax to 1-800-292-8177, or send  a telegram  to USAA Shareholder
  Account Services.
* Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(1) USAA number or account number, (2) the

                                      12
<PAGE>

name(s) on the  account  registration,  and (3) social  security  number or tax
identification number for the account registration. Additionally, all telephone
communications with you are recorded and confirmations of account  transactions
are sent to the address of record.  If you were issued stock  certificates  for
your shares, redemption by telephone, fax, or telegram is not available.
    
IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the Investor's Guide to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the Investor's  Guide,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

          
Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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); however, this 1% charge will
  not be imposed upon  shareholders unless 

                                      13
<PAGE>

  authorized by  the Board of Directors and the required  notice has been given
  to shareholders;
   
* require  a  signature  guarantee  for  transactions  or  changes  in  account
  information in  those  instances  where  the  appropriateness  of a signature
  authorization  is  in  question.  The  Statement  of  Additional  Information
  contains information on acceptable guarantors;
    
* redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 12.
    

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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

                                      14
<PAGE>

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  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  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. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Directors,  will use all relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
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 payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.
   
We  will   automatically   reinvest  all  income  dividends  and  capital  gain
distributions  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 dividends or capital gain distributions paid by the Fund will reduce the
NAV per share by the amount of the dividend or  distribution.  These  dividends
and distributions are subject to taxes.
    
                                      15
<PAGE>

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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.

                                      16
<PAGE>

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

<TABLE>
<CAPTION>

                                                                           Ten-Month
                                                                          Period Ended
                                        Year Ended July 31,                 July 31,
                         ------------------------------------------------------------
                             1998        1997        1996        1995         1994
                         ------------------------------------------------------------
<S>                      <C>         <C>         <C>         <C>         <C>
Net asset value at
  beginning of period    $  32.82    $  27.88    $  24.49    $  17.74    $  20.40
Net investment loss          (.12)(a)    (.14)(a)    (.12)(a)    (.05)(a)    (.02)(a)
Net realized and
  unrealized gain (loss)     1.26        5.65        5.12        8.35       (1.37)
Distributions from net
  investment income            _           _           _          _          (.02)
Distributions of realized
  capital gains             (2.34)       (.57)      (1.61)      (1.55)      (1.25)
                         ------------------------------------------------------------
Net asset value at
  end of period          $  31.62    $  32.82    $  27.88    $  24.49    $  17.74
                         ============================================================
Total return (%)*            3.91       20.00       21.16       49.98       (7.31)
Net assets at end of
  period (000)           $736,450    $753,984    $607,437    $363,390    $248,953
Ratio of expenses to
  average net assets (%)      .71         .74         .74         .86         .83(b)
Ratio of net investment
  income to average net
  assets (%)                 (.38)       (.47)       (.42)       (.28)        .10(b)
Portfolio turnover (%)      83.32       57.15       43.75      138.32       98.99
</TABLE>
- -----------------
(a) Calculated using weighted average shares.
(b) Annualized.  The  ratio is not  necessarily  indicative  of 12  months  of
    operations.
  * Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
    
                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

CONVERTIBLE SECURITIES
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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 also depends on the price of the underlying common stock.
    
FORWARD CURRENCY CONTRACTS

We 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,  we
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.  We only enter into forward  currency  contracts when the Fund enters
into a contract for the purchase or sale of a security  denominated  in foreign
currency and desires to "lock in" the U.S. dollar price of that security.

ILLIQUID SECURITIES
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
MONEY MARKET INSTRUMENTS
   
We may hold a  certain  portion  of the  Fund's  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,  certificates  of  deposit,
bankers'  acceptances,  and  other  financial  institution  obligations.  These
securities may carry fixed or variable interest rates.
    
                                      19
<PAGE>

                                   APPENDIX B

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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      20
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                                  Growth Fund

                               is included herein
    
<PAGE>
                                USAA GROWTH FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy?..............   2
Main Risks of Investing in This Fund....................................   2
Is This Fund for You?...................................................   2
Could the Value of Your Investment in This Fund Fluctuate?..............   3
Fees and Expenses.......................................................   4
Fund Investments........................................................   5
Fund Management.........................................................   7
Using Mutual Funds in an Investment Program.............................   8
How to Invest...........................................................   9
Important Information About Purchases and Redemptions...................  12
Exchanges...............................................................  13
Shareholder Information.................................................  14
Financial Highlights....................................................  17
Appendix A .............................................................  18
Appendix B .............................................................  19
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.
    
WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?
   
The Fund's  primary  investment  objective is long-term  growth of capital with
secondary  objectives  of regular  income and  conservation  of  principal.  We
attempt to achieve these objectives by investing in stocks that, at the time of
purchase, are considered out of favor and undervalued.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's objectives will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary risk of investing in this Fund is market risk.

*   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will decline  because of falls in the stock  market,  reducing the value of
    individual  company's  stocks  regardless  of the  success or failure of an
    individual company's operations.

Another  risk of the  Fund  described  later in the  Prospectus  is the risk of
foreign  investing.  As with other mutual funds,  losing money is an additional
risk associated with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An  investment  in this Fund is not a deposit of USAA Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

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

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

                                       2
<PAGE>

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

   * You are unwilling to take greater risk for long-term goals.
   * You are unable or reluctant to invest for a period of five years or more.
   * You need an investment that provides regular income or tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact, the value of your  investment  will likely increase or
decrease.  The bar chart  shown below  illustrates  the Fund's  volatility  and
performance from year to year over the past ten years.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                DISTRIBUTIONS.

[BAR CHART]
               
                   CALENDAR          TOTAL 
                     YEAR            RETURN
                     
                     1988             6.57%
                     1989            27.33%
                     1990             -.05%
                     1991            27.81%
                     1992             9.95%
                     1993             7.45%
                     1994             3.35%
                     1995            32.06%
                     1996            17.80%
                     1997             3.69%

         THE FUND'S TOTAL RETURN FOR THE NINE-MONTH  PERIOD ENDED SEPTEMBER 30,
         1998, WAS ____%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 12.05%  (quarter  ending  September  30, 1994) and the lowest total
return for a quarter was -16.14% (quarter ending December 31, 1997).

The table on the next page shows how the Fund's  average annual returns for the
one-,  five-,  and ten-year periods as well as the life of the Fund compared to
those  of  a  broad-based   securities  market  index.   Remember,   historical
performance does not necessarily indicate what will happen in the future.

                                       3
<PAGE>

===============================================================================
 Average Annual
 Total Returns
 (for the periods ending      Past         Past        Past         Life of
 December 31, 1997)          1 Year      5 Years     10 Years        Fund
===============================================================================
  Growth Fund                3.69%        12.36%      13.06%         8.43%
- -------------------------------------------------------------------------------
  S&P 500 Index*            33.35%        20.25%      18.02%        13.02%
===============================================================================
  *  THE  S&P  500  INDEX  IS A  BROAD-BASED  COMPOSITE  UNMANAGED  INDEX  THAT
     REPRESENTS THE  AVERAGE  PERFORMANCE  OF  A  GROUP  OF  500   WIDELY-HELD,
     PUBLICLY-TRADED STOCKS.

Please  consider  performance  information  in light of the  Fund's  investment
objectives and policies and market conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  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 41# when asked for the Fund Code.

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "Grwth." If you prefer to obtain this  information  from an on-line
computer service, you can do so by using the ticker symbol "USAAX."
    
                              [TELEPHONE GRAPHIC]
                                 TouchLINE (R)
                                1-800-531-8777
                                     PRESS
                                       1
                                     THEN
                                       1
                                     THEN
                                     4 1 #

                               NEWSPAPER SYMBOL
                                     Grwth
   
                                 TICKER SYMBOL
                                     USAAX
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and  transfer  agent fees.  The  figures on the next page show actual  expenses
during the past  fiscal  year  ended July 31,  1998,  and are  calculated  as a
percentage of average net assets.
    

                                       4
<PAGE>
   
                                 12B-1 FEES -
                               SOME MUTUAL FUNDS
                               CHARGE THESE FEES
                                  TO PAY FOR
                                ADVERTISING AND
                                OTHER COSTS OF
                              SELLING FUND SHARES.    

      Management Fees                              .75%     
      Distribution (12b-1) Fees                    None     
      Other Expenses                               .21%     
                                                   ----     
      Total Annual Fund Operating Expenses         .96%     
                                                   ====     
                                                     
Example of Effect of Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                     1  year.......... $   98          
                     3  years.........    306
                     5  years.........    531
                    10  years.........  1,178
              
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

   Q   What is the Fund's principal investment strategy?

   A   The Fund's principal  investment strategy is to invest the Fund's assets
       primarily in common stocks or in securities  that are  convertible  into
       common  stocks.   However,  we  will  limit  the  Fund's  investment  in
       convertible  securities  to 5% of the value of the  Fund's net assets at
       the time these  securities are purchased.  We may also invest the Fund's
       assets in  warrants,  rights,  real  estate  investment  trusts,  and in
       nonconvertible  debt  securities  when we believe these  securities will
       offer a good prospect for appreciation.

       As a temporary defensive measure because of market, economic, political,
       or other  conditions, we may invest up to 100% of the  Fund's  assets in
       investment-grade,  short-term debt instruments,  which may result in the
       Fund not achieving  its  investment  objective  during the time it is in
       this temporary defensive posture.

                                       5
<PAGE>

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in stocks, it is subject to stock market
risk. Stock prices in general may decline over short or even extended  periods,
regardless  of the success or failure of an  individual  company's  operations.
Stock markets tend to run in cycles,  with periods when stock prices  generally
go up, known as "bull"  markets,  and periods  when stock  prices  generally go
down,  referred to as "bear"  markets.  Stocks tend to go up and down more than
bonds.
    
   Q   How will particular securities be selected?
   
   A   We look for stocks of  companies we believe are superior but whose share
       prices do not reflect this. Generally,  we will invest the Fund's assets
       in stocks that, at the time of purchase, are considered out of favor and
       undervalued.  These  investments will have at least one of the following
       characteristics:
    
        *  a recent significant market price decline;

        *  sustained poor performance relative to the market or
           their industry;

        *  extremely pessimistic appraisal by most investors; or

        *  a market price that is low relative to earnings,  cash flow, assets,
           or book value.
   
       Using these  criteria,  we shall  attempt to build a portfolio of stocks
       that are undervalued at the time of purchase,  but which we believe in a
       short time will return to and sustain a normal valuation.

       At times it is  likely  to be  difficult  or  impossible  for us to find
       stocks in sufficient  quantity which conform to these criteria.  In such
       cases we will also invest the Fund's assets in other growth stocks.
    

   Q   May the Fund's assets be invested in securities of foreign issuers?

   A   Yes.  We may invest up to 30% of the  Fund's  total  assets in  American
       Depositary  Receipts  (ADRs) or similar  forms of ownership  interest in
       securities  of  foreign  issuers   deposited  with  a  depositary,   and
       securities  of  foreign  issuers  that  are  traded  on U.S.  securities
       exchanges or in U.S. over-the-counter markets.
   
                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.
    
[CAUTION LIGHT]
FOREIGN  INVESTING.  Investing in  securities  of foreign  issuers poses unique
risks:  currency  exchange  rate  fluctuations;   increased  price  volatility;
different accounting,  reporting, and disclosure requirements; and political or
social instability. In the past, equity and debt instruments of foreign issuers
have been more volatile than equity and debt instruments of U.S. issuers.

                                       6
<PAGE>
   
   Q   How are the decisions to buy and sell securities made?

   A   We generally purchases out-of-favor growth stocks. However, at times, it
       may be difficult to find a sufficiently  varied group of such companies.
       In such  cases,  we will  invest a  portion  of the  Fund's  assets in a
       diversified group of large capitalization growth stocks. Stocks are sold
       when we believe they are overvalued.  Overvaluation  is generally caused
       either by earnings  forecasts  that are too  optimistic  or  unrealistic
       multiples that the market places on projected earnings.

For additional  information  about other  securities in which we may invest the
Fund's assets, see Appendix A on page 18.
    
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average net assets for the fiscal year ended July 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

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.

                                       7
<PAGE>
Portfolio Manager
   
[PHOTOGRAPH OF PORTFOLIO MANAGER
DAVID G. PARSONS
David G. Parsons,  Assistant Vice President of Equity Investments,  has managed
the Fund since January 1994. He has 15 years investment  management  experience
working for us. Mr. Parsons earned the Chartered  Financial Analyst designation
in 1986  and is a member  of the  Association  for  Investment  Management  and
Research and the San Antonio Financial  Analysts Society,  Inc. He holds an MBA
from the University of Texas, an MA from Southern Illinois University, and a BA
from Austin College, Texas.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.

For example,  assume you wish to invest in a  widely-diversified,  common stock
portfolio.  You could combine an investment in the Growth Fund with investments
in other  mutual funds that invest in stocks of large and small  companies  and
high-dividend  stocks. This is just one way you could combine funds to fit your
own risk and reward goals.

                                       8
<PAGE>

III. USAA's Family of Funds
   
We offer you another  alternative for asset  allocation with our asset strategy
funds  listed in APPENDIX B under asset  allocation  on page 19.  These  unique
mutual funds provide a professionally-managed, diversified investment portfolio
within a mutual fund.  Designed for the  individual who prefers to delegate the
asset allocation  process to an investment  manager,  their structure  achieves
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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 19 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    
                                       9
<PAGE>

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
* $3,000 [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts and
  $250  for  IRAs]  or no  initial  investment  if you  elect  to have  monthly
  electronic  investments  of at least  $50  each.  We may  periodically  offer
  programs that reduce the minimum amounts for monthly electronic  investments.
  Employees of USAA and its  affiliated  companies may open an account  through
  payroll  deduction  for as  little  as $25 per  pay  period  with no  initial
  investment.

ADDITIONAL PURCHASES

* $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
* To open an account, send your application and check to:
    USAA Investment Management Company
    9800 Fredericksburg Road
    San Antonio, TX 78288

* To add to your account,  send your check  and  the "Invest by Mail" stub that
  accompanies your Fund's transaction confirmation to the Transfer Agent:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288
   
IN PERSON

[HANDSHAKE GRAPHIC]
* To open an account, bring your application and check to:
    USAA Investment Management Company
    USAA Federal Savings Bank
    10750 Robert F. McDermott Freeway
    San Antonio, TX 78288
    
BANK WIRE
   
[WIRE GRAPHIC]
* Instruct  your bank  (which may  charge a fee for the  service)  to  wire the
  specified amount to the Fund as follows:
    State Street Bank and Trust Company
    Boston, MA 02101
    ABA#011000028
    Attn: USAA Growth Fund
    USAA Account Number: 69384998
    Shareholder(s) Name(s)__________________________________________
    Shareholder(s) Mutual Fund Account Number_______________________
    
                                      10
<PAGE>

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
* Additional  purchases on a regular basis can be deducted from a bank account,
  paycheck,  income-producing  investment,  or USAA money market fund  account.
  Sign up for these services when opening an account or call  1-800-531-8448 to
  add these services.

PHONE 1-800-531-8448

[TELEPHONE GRAPHIC]
* If you have an existing USAA mutual fund account and would like to open a new
  account or exchange to another USAA Fund, call for  instructions.  To open an
  account by phone,  the new account  must have the same  registration  as your
  existing account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
In  addition,  the  Company may elect to suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
* Send your written instructions to:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288
* Send a signed  fax to 1-800-292-8177, or send a  telegram to USAA Shareholder
  Account Services.
* Call toll free 1-800-531-8448, in San Antonio, 456-7202.

                                      11
<PAGE>
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the Investor's Guide to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the Investor's  Guide,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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).
    
                                      12
<PAGE>

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);  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  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;
    
*   redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.
    
The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 11.

                                      13
<PAGE>

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  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).

SHAREHOLDER INFORMATION

Share Price Calculation

                                 NAV PER SHARE
                                     EQUALS
                                 TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING
   
The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

Portfolio  securities,  except  as  otherwise  noted,  traded  primarily  on  a
securities exchange are valued at the last sales price on that exchange.  If no
sale is reported, the average of the bid and asked prices is generally used.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
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 payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.

We  will   automatically   reinvest  all  income  dividends  and  capital  gain
distributions  unless we receive  different  instructions  from you.  The share
price will be the NAV of the Fund shares computed on the ex-dividend date. 

                                      14
<PAGE>

Any income dividends or capital gain distributions paid by the Fund will reduce
the  NAV per  share  by the  amount  of the  dividend  or  distribution.  These
dividends and 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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.
    
                                      15
<PAGE>
   
Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.
    
                                      16
<PAGE>
   
                             FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

<TABLE>
<CAPTION>

                                                                        Ten-Month
                                                                       Period Ended
                                        Year Ended July 31,              July 31,
                         ------------------------------------------------------------
                               1998        1997        1996      1995       1994
                         ------------------------------------------------------------
<S>                      <C>         <C>         <C>         <C>        <C>
Net asset value at
  beginning of period    $    23.66  $    20.05  $    19.06  $  17.63   $  19.76
Net investment income           .01         .24         .33       .26        .19
Net realized and
  unrealized gain (loss)      (1.31)       6.92        1.92      3.95       (.17)
Distributions from net
  investment income            (.09)       (.34)       (.29)     (.27)      (.16)
Distributions of realized
  capital gains               (2.23)      (3.21)       (.97)    (2.51)     (1.99)
                         -----------------------------------------------------------
Net asset value at
  end of period          $    20.04  $    23.66  $    20.05  $  19.06   $  17.63
                         ===========================================================
Total return (%)*             (4.91)      42.48       12.44     26.46        .31
Net assets at end of
  period (000)           $1,403,573  $1,650,257  $1,162,262  $922,821   $618,685
Ratio of expenses to
  average net assets (%)        .96         .97        1.01      1.04       1.04(a)
Ratio of net investment
  income to average net
  assets (%)                    .04        1.28        1.70      1.63       1.33(a)
Portfolio turnover (%)        68.93       75.41       62.30     69.64     117.80
</TABLE>
- -----------------
(a)  Annualized.  The  ratio is not  necessarily  indicative  of 12  months  of
     operations. 
*    Assumes reinvestment of  all dividend income and capital gain distribution
     during the period.
    
                                      17
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

CONVERTIBLE SECURITIES
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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 also depends on the price of the underlying common stock. 

ILLIQUID SECURITIES 

We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

MONEY MARKET INSTRUMENTS 

We may hold a  certain  portion  of the  Fund's  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,  certificates  of  deposit,
bankers'  acceptances,  and  other  financial  institution  obligations.  These
securities may carry fixed or variable interest rates.
    
                                      18
<PAGE>

                                  APPENDIX B

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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      19
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                              Growth & Income Fund

                               is included herein
    
<PAGE>
                                 USAA GROWTH &
                                  INCOME FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy?..............   2
Main Risks of Investing in This Fund....................................   2
Is This Fund for You?...................................................   2
Could the Value of Your Investment in This Fund Fluctuate?..............   3
Fees and Expenses.......................................................   4
Fund Investments........................................................   5
Fund Management.........................................................   7
Using Mutual Funds in an Investment Program.............................   8
How to Invest...........................................................   9
Important Information About Purchases and Redemptions...................  12
Exchanges...............................................................  13
Shareholder Information.................................................  13
Financial Highlights....................................................  16
Appendix A .............................................................  17
Appendix B .............................................................  18
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's investment objectives are capital growth and current income. We will
attempt to achieve these objectives by investing the Fund's assets primarily in
dividend paying equity securities.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's objectives will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary risk of investing in this Fund is market risk.

*   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities will decline because of falls in the stock market,  reducing the
    value of individual  company's stocks  regardless of the success or failure
    of an individual company's operations.

Other risks of the Fund described later in the Prospectus  include the risks of
foreign investing and investing in real estate  investment  trusts (REITs).  As
with other mutual funds,  losing money is an additional  risk  associated  with
investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a  deposit of USAA  Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

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

   *  You are looking for capital growth and current income.
   *  You are willing to accept moderate risk
   *  You are looking for a long-term investment.

                                       2
<PAGE>

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

   *  You are unable or reluctant to invest for a period of five years or more.
   *  You need an investment that provides tax-free income.

COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact, the value of your  investment  will likely increase or
decrease.  The bar chart  shown below  illustrates  the Fund's  volatility  and
performance from year to year over the life of the Fund.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                DISTRIBUTIONS.

[BAR CHART]
               
                   CALENDAR          TOTAL 
                     YEAR            RETURN
                     
                     1994*            1.29%
                     1995            31.57%
                     1996            23.04%
                     1997            26.04%

         *Fund began operations on June 1, 1993.
         
         THE FUND'S TOTAL RETURN FOR THE NINE-MONTH  PERIOD ENDED SEPTEMBER 30,
         1998, WAS _____%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 13.96%  (quarter  ending June 30, 1997) and the lowest total return
for a quarter was -3.96% (quarter ending March 31, 1994).

                                       3
<PAGE>

The table below shows how the Fund's  average  annual  returns for the one-year
period and the life of the Fund compared to those of a  broad-based  securities
market index.  Remember,  historical  performance does not necessarily indicate
what will happen in the future.

===============================================================================
 Average Annual
 Total Returns
 (for the periods ending           Past        Since Fund's Inception
 December 31, 1997)               1 Year         on June 1, 1993
===============================================================================
  Growth & Income Fund            26.04%               18.30%
- -------------------------------------------------------------------------------
  S&P 500 Index*                  33.35%               21.10%
===============================================================================
* THE S&P 500 INDEX IS A BROAD-BASED  COMPOSITE UNMANAGED INDEX THAT REPRESENTS
  THE  AVERAGE  PERFORMANCE  OF  A GROUP  OF 500  WIDELY-HELD,  PUBLICLY-TRADED
  STOCKS.

Please  consider  performance  information  in light of the  Fund's  investment
objectives and policies and market conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  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 37# when asked for the Fund Code.

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "Gr&Inc." If you prefer to obtain this  information from an on-line
computer service, you can do so by using the ticker symbol "USGRX."
    
                              [TELEPHONE GRAPHIC]
                                 TouchLINE (R)
                                1-800-531-8777
                                     PRESS
                                       1
                                     THEN
                                       1
                                     THEN
                                     3 7 #

                               NEWSPAPER SYMBOL
                                     Gr&Inc
   
                                 TICKER SYMBOL
                                     USGRX
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends. "Other Expenses" include expenses such as 

                                       4
<PAGE>

custodian  and  transfer  agent fees.  The figures  below show actual  expenses
during the past  fiscal  year  ended July 31,  1998,  and are  calculated  as a
percentage of average net assets.

                                  12B-1 FEES -
                               SOME MUTUAL FUNDS
                               CHARGE THESE FEES
                                  TO PAY FOR
                                ADVERTISING AND
                                OTHER COSTS OF
                              SELLING FUND SHARES.

      Management Fees                              .60%     
      Distribution (12b-1) Fees                    None     
      Other Expenses                               .25%     
                                                   ----     
      Total Annual Fund Operating Expenses         .85%     
                                                   ====     
                                                            
Example of Effect of Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                     1  year.......... $   87
                     3  years.........    271
                     5  years.........    471
                    10  years.........  1,049
    
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

   Q   What is the Fund's principal investment strategy?

   A   The Fund's principal  investment strategy is to invest the Fund's assets
       primarily in dividend paying equity securities.  We use the term "equity
       securities" to include common stocks, securities convertible into common
       stocks,  securities which carry the right to buy common stocks, and real
       estate investment trusts (REITs). We will limit the Fund's investment in
       convertible  securities  to 5% of the value of the  Fund's net assets at
       the  time  these  securities  are  purchased.  We  may  also  invest  in
       nonconvertible debt securities and nonconvertible preferred stock.

       As a temporary defensive measure because of market, economic, political,
       or other  conditions,  we may invest up to 100% of the Fund's  assets in
       investment-grade short-term debt instruments, which  may  result  in the
       Fund not achieving  its  investment  objective  during the time it is in
       this temporary defensive posture.

                                       5
<PAGE>

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

[CAUTION LIGHT]
REITs.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated with the direct  ownership of real estate.  Additionally,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification, and could be significantly impacted by changes in tax laws.

                                  ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.
    
   Q   May the Fund's assets be invested in securities of foreign issuers?

   A   Yes.  We may invest up to 30% of the  Fund's  total  assets in  American
       Depositary  Receipts  (ADRs) or similar  forms of ownership  interest in
       securities  of  foreign  issuers   deposited  with  a  depositary,   and
       securities  of  foreign  issuers  that  are  traded  on U.S.  securities
       exchanges or in U.S. over-the-counter markets.

[CAUTION LIGHT]
FOREIGN  INVESTING.  Investing in  securities  of foreign  issuers poses unique
risks:  currency  exchange  rate  fluctuations;   increased  price  volatility;
different accounting,  reporting, and disclosure requirements; and political or
social instability. In the past, equity and debt instruments of foreign issuers
have been more volatile than equity and debt instruments of U.S. issuers.

   
   Q   How are the decisions to buy and sell securities made?

   A   We appraise a stock's price in relation to the company's earnings,  cash
       flow,  book  value,  and yield.  We also  consider  various  qualitative
       factors such as the number of shares the company's  management owns, the
       attitude of investors in general toward the company,  and the quality of
       management.

       We use the same  criteria in deciding  which  securities  to sell.  For
       example,  when  a  company's  shares  sell  well  above  their  relative
       historical  levels, we may decide to sell the stock.  
    
For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 17.
       
                                       6
<PAGE>
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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.  This fee was  computed  and paid at  three-fifths  of one percent
(.60%) of average net assets for the fiscal year ended July 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

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
   
[PHOTOGRAPH OF PORTFOLIO MANAGER]
R. DAVID ULLOM
R. David Ullom, Assistant Vice President of Equity Investments, has managed the
Fund  since its  inception  in June  1993.  Mr.  Ullom has 23 years  investment
management  experience  and has  worked  for us for 12  years.  He  earned  the
Chartered  Financial  Analyst  designation  in  1980  and  is a  member  of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial  Analysts Society,  Inc. He holds an MBA from Washington  University,
Missouri, and a BS from Oklahoma State University.
    
                                       7
<PAGE>

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example,  assume you wish to invest in a  widely-diversified,  common stock
portfolio.  You could  combine an  investment  in the Growth & Income Fund with
investments in other mutual funds that primarily seek capital  appreciation  by
investing  in stocks of large  and  small  companies.  This is just one way you
could combine funds to fit your own risk and reward goals.
    
III. USAA's Family of Funds

We offer you another  alternative for asset  allocation with our asset strategy
funds  listed in APPENDIX B under asset  allocation  on page 18.  These  unique
mutual funds provide a professionally-managed, diversified investment portfolio
within a mutual fund.  Designed for the  individual who prefers to delegate the
asset allocation  process to an investment  manager,  their structure  achieves
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 

                                       8
<PAGE>
   
choices  covering just about any investor's  investment  objectives.  Our sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  Appendix B on page 18 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    
MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
* $3,000 [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts and
  $250  for  IRAs]  or no  initial  investment  if you  elect  to have  monthly
  electronic  investments  of at least  $50  each.  We may  periodically  offer
  programs that reduce the minimum amounts for monthly electronic  investments.
  Employees of USAA and its  affiliated  companies may open an account  through
  payroll  deduction  for as  little  as $25 per  pay  period  with no  initial
  investment.

                                       9
<PAGE>

ADDITIONAL PURCHASES

* $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
* To open an account, send your application and check to:
    USAA Investment Management Company
    9800 Fredericksburg Road
    San Antonio, TX 78288

* To add to your account,  send your check and the "Invest by Mail" stub that
  accompanies your Fund's transaction confirmation to the Transfer Agent:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288

IN PERSON
   
[HANDSHAKE GRAPHIC]
* To open an account, bring your application and check to:
    USAA Investment Management Company
    USAA Federal Savings Bank
    10750 Robert F. McDermott Freeway
    San Antonio, TX 78288
    
BANK WIRE
   
[WIRE GRAPHIC]
* Instruct  your bank  (which may  charge a fee for the  service)  to wire the
  specified amount to the Fund as follows:
    State Street Bank and Trust Company
    Boston, MA 02101
    ABA#011000028
    Attn: USAA Growth & Income Fund
    USAA Account Number: 69384998
    Shareholder(s) Name(s)___________________________________________
    Shareholder(s) Mutual Fund Account Number________________________
    
ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
* Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
  account, paycheck,  income-producing  investment, or USAA money market fund
  account.  Sign up for  these  services  when  opening  an  account  or call
  1-800-531-8448 to add these services.

                                      10
<PAGE>

PHONE 1-800-531-8448
   
[TELEPHONE GRAPHIC]
* If you have an existing  USAA mutual fund  account and would like to open a
  new account or exchange to another  USAA Fund,  call for  instructions.  To
  open an account by phone,  the new account must have the same  registration
  as your existing account.
    
Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
In  addition,  the  Company may elect to suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
* Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
* Send a signed fax to  1-800-292-8177,  or send a telegram to USAA Shareholder
  Account Services.
* Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
                                      11
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the Investor's Guide to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the Investor's  Guide,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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);  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  transactions  or  changes  in  account
  information  in those  instances  where the  appropriateness  of a  signature
  authorization  is  in  question.  The  Statement  of  Additional  Information
  contains information on acceptable guarantors;
    
* redeem an account with less than 10 shares, with certain limitations.

                                      12
<PAGE>

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 11.
    
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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                     EQUALS
                                 TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

Portfolio  securities,  except  as  otherwise  noted,  traded  primarily  on  a
securities exchange are valued at the last sales price on that exchange.  If no
sale is reported, the average of the bid and asked prices is generally used.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a

                                      13
<PAGE>

pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net investment income dividends  quarterly.  Any net capital gain
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 payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.
   
We  will   automatically   invest  all  income   dividends   and  capital  gain
distributions  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 dividends or capital gain distributions paid by the Fund will reduce the
NAV per share by the amount of the dividend or  distribution.  These  dividends
and 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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
                                      14
<PAGE>

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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.
    

                                      15
<PAGE>
   
FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.
<TABLE>
<CAPTION>

                                                                        Ten-Month
                                                                       Period Ended
                                        Year Ended July 31,              July 31,
                         ------------------------------------------------------------
                                1998      1997       1996        1995       1994
                         ------------------------------------------------------------
<S>                       <C>         <C>        <C>          <C>        <C>
Net asset value at
  beginning of period     $    18.85  $  13.46   $  12.07     $ 10.36    $  10.23
Net investment income            .21       .23        .24(a)      .24(a)      .17(a)
Net realized and
  unrealized gain                .69      5.84       1.51        1.81         .16
Distributions from net
  investment income             (.21)     (.23)      (.23)       (.23)       (.18)
Distributions of realized
  capital gains                 (.66)     (.45)      (.13)       (.11)       (.02)
                         ------------------------------------------------------------
Net asset value at
  end of period           $    18.88  $  18.85   $  13.46    $  12.07    $  10.36
                         ============================================================
Total return (%)*               4.99     46.69      14.68       20.30        3.28
Net assets at end of
  period (000)            $1,078,589  $825,092   $371,801    $208,490    $134,622
Ratio of expenses to
  average net assets (%)         .85       .89        .95        1.01        1.12(b)
Ratio of net investment
  income to average net
  assets (%)                    1.07      1.50       1.84        2.21        1.95(b)
Portfolio turnover (%)         29.38     14.67      16.13       19.45       13.90
</TABLE>
- -----------------
(a) Calculated using weighted average shares.
(b) Annualized.  The  ratio is  not  necessarily  indicative  of 12  months  of
    operations.
*   Assumes  reinvestment of all dividend income and capital gain distributions
    during the period.
    

                                      16
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

CONVERTIBLE SECURITIES
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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 also depends on the price of the underlying common stock.
    
ILLIQUID SECURITIES
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
MONEY MARKET INSTRUMENTS
   
We may hold a  certain  portion  of the  Fund's  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,  certificates  of  deposit,
bankers'  acceptances,  and  other  financial  institution  obligations.  These
securities may carry fixed or variable interest rates.
    
                                      17
<PAGE>

                                   APPENDIX B

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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      18
<PAGE>
                                     NOTES
                                     
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
          
<PAGE>
                                     Part A

                               Prospectus for the

                               Income Stock Fund

                               is included herein
    
<PAGE>
                                  USAA INCOME
                                   STOCK FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy? .....  2
Main Risks of Investing in This Fund ...........................  2
Is This Fund for You? ..........................................  3
Could the Value of Your Investment in This Fund Fluctuate? .....  3
Fees and Expenses ..............................................  5
Fund Investments ...............................................  6
Fund Management ................................................  8
Using Mutual Funds in an Investment Program .................... 10
How to Invest .................................................. 11
Important Information About Purchases and Redemptions .......... 14
Exchanges ...................................................... 15
Shareholder Information ........................................ 15
Financial Highlights ........................................... 18
Appendix A ..................................................... 19
Appendix B ..................................................... 20
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The  Fund's  investment  objective  is  current  income  with the  prospect  of
increasing dividend income and the potential for capital appreciation.  We will
attempt to achieve the Fund's objective by investing primarily in common stocks
of well-established, large companies with above-average dividend yields.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing in this Fund are market  risk,  interest  rate
risk, and credit risk.

*   MARKET RISK involves the possibility that the Fund's  investments in stocks
    will decline  because of falls in the stock  market,  reducing the value of
    individual  company's  stocks,  regardless  of the success or failure of an
    individual company's operations.

*   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline because of an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

*   CREDIT RISK  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

An additional risk of the Fund described later in the Prospectus is the risk of
foreign  investing.  As with other mutual funds,  losing money is an additional
risk associated with investing in this Fund.

                                       2
<PAGE>

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An  investment  in this Fund is not a deposit of USAA Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.
    
IS THIS FUND FOR YOU?

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

*   You are  primarily  looking  for  current  income and  secondarily  capital
    appreciation.
*   You are willing to accept moderate risk.
*   You are looking for a long-term investment.

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

*   Your  primary  goal  is  to  maximize   long-term  growth  through  capital
    appreciation.
*   You are unable or reluctant to invest for a period of five years or more.
*   You need an investment that provides tax-free income.
   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact, the value of your  investment  will likely increase or
decrease.  The  bar  chart  shown  on the  next  page  illustrates  the  Fund's
volatility and performance from year to year for the past ten years.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
     CALENDAR        TOTAL
       YEAR         RETURN
       
       1988         19.43%
       1989         27.13%
       1990         -1.42%
       1991         27.33%
       1992          7.80%
       1993         11.56%
       1994          -.70%
       1995         28.62%
       1996         18.70%
       1997         26.99%

       THE FUND'S  TOTAL RETURN  FOR THE NINE-MONTH  PERIOD ENDED SEPTEMBER 30,
       1998, WAS ____%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 10.81%  (quarter ending March 31, 1991) and the lowest total return
for a quarter was -8.30% (quarter ending September 30, 1990).

The table  below  shows how the Fund's  average  annual  returns  for the one-,
five-,  and ten-year  periods as well as the life of the Fund compared to those
of a broad-based securities market index. Remember, historical performance does
not necessarily indicate what will happen in the future.

===============================================================================
  Average Annual
  Total Returns
  (for the periods ending     Past        Past          Past       Life of
  December 31, 1997)         1 Year     5 Years       10 Years      Fund
===============================================================================
  Income Stock Fund          26.99%      16.52%        16.00%      14.04%
- -------------------------------------------------------------------------------
  S&P 500 Index*             33.35%      20.25%        18.02%      15.36%
===============================================================================
    
  *THE  S&P  500  INDEX  IS  A  BROAD-BASED   COMPOSITE  UNMANAGED  INDEX  THAT
   REPRESENTS  THE  AVERAGE   PERFORMANCE  OF  A  GROUP  OF  500   WIDELY-HELD,
   PUBLICLY-TRADED STOCKS.

                                       4
<PAGE>

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 3 5 #
   
Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  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 35# when asked for the Fund Code.
    
                                   NEWSPAPER
                                     SYMBOL
                                     IncStk
   
                                     TICKER
                                     SYMBOL
                                     USISX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "IncStk." If you prefer to obtain this  information from an on-line
computer service, you can do so by using the ticker symbol "USISX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended July 31, 1998,  and are calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

          Management Fees                         .50%
          Distribution (12b-1) Fees               None
          Other Expenses                          .15%
                                                  ----
          Total Annual Fund Operating Expenses    .65%
                                                  ====

                                       5
    
<PAGE>

Example of Effect of Fund's Operating Expenses
   
This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                     1 year............... $ 66
                     3 years..............  208
                     5 years..............  362
                    10 years..............  810
    
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

  Q  What is the Fund's principal investment strategy?

  A  The Fund's  principal  investment  strategy is to invest the Fund's assets
     primarily in the common stocks of  well-established,  large companies that
     have  demonstrated an ability to increase their  dividends.  We attempt to
     provide a portfolio with a dividend yield above the average of the S&P 500
     Index.  We may  include  common  stocks,  real  estate  investment  trusts
     (REITs),  preferred stocks, securities convertible into common stocks, and
     securities which carry the right to buy common stocks in the portfolio.

     As a temporary defensive measure because of market,  economic,  political,
     or other  conditions,  we may  invest up to 100% of the  Fund's  assets in
     investment-grade,  short-term  debt  instruments,  which may result in the
     Fund not achieving its investment  objective during the time it is in this
     temporary defensive posture.

[CAUTION LIGHT]
MARKET  RISK.  Because  this Fund  invests  in  stocks,  including  convertible
securities,  it is subject to stock  market  risk.  Stock prices in general may
decline  over short or even  extended  periods,  regardless  of the  success or
failure of an  individual  company's  operations.  Stock markets tend to run in
cycles,  with  periods  when  stock  prices  generally  go up,  known as "bull"
markets, and periods when stock prices generally go down, referred to as "bear"
markets. Stocks tend to go up and down more than bonds.

                                       6
<PAGE>

[CAUTION LIGHT]
REITS.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated with the direct  ownership of real estate.  Additionally,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification, and could be significantly impacted by changes in tax laws.

  Q  Are there any limitations on how much of the Fund's assets may be invested
     in any particular securities?

  A  We may only  invest up to 35% of the  Fund's  net  assets  in  convertible
     preferred stocks and up to 5% of the Fund's net assets in convertible debt
     securities measured at the time a security is purchased. These convertible
     securities  may be rated below  investment  grade as determined by Moody's
     Investors  Service,  Inc.  or  Standard & Poor's  Ratings  Group or may be
     unrated.

[CAUTION LIGHT]
INTEREST  RATE RISK.  Interest  rate risk is the risk that the market  value of
certain  securities will decline  because of rising interest rates.  Certain of
the Fund's portfolio securities have similar interest rate risk characteristics
to bonds. In general,  when interest rates rise, the prices of these securities
fall and when interest  rates fall,  the prices of these  securities  generally
rise.

[CAUTION LIGHT]
CREDIT RISK.  Credit risk is the possibility  that an issuer of a security will
fail  to make  timely  payments  of  interest  or  principal.  When  evaluating
potential  investments  for the Fund,  our analysts also assess credit risk and
its impact on the Fund's portfolio. Securities rated below investment grade are
deemed to be speculative and involve greater risk of default because of changes
in interest rates, economic conditions, and the issuer's creditworthiness. As a
result, their prices tend to go up or down more than higher-quality securities.
During periods of economic downturns or rising interest rates,  issuers of such
securities  may  experience  financial  difficulties  which could  affect their
ability to make timely principal and interest  payments.  The 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.
    
  Q  May the Fund's assets be invested in securities of foreign issuers?

  A  Yes.  We may  invest up to 10% of the  Fund's  total  assets  in  American
     Depositary  Receipts  (ADRs) or similar  forms of  ownership  interest  in
     securities of foreign issuers deposited with a depositary,  and securities
     of foreign issuers that are traded on U.S. securities exchanges or in U.S.
     over-the-counter markets.
   
                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                       7
<PAGE>

[CAUTION LIGHT]
FOREIGN  INVESTING.  Investing in  securities  of foreign  issuers poses unique
risks:  currency  exchange  rate  fluctuations;   increased  price  volatility;
different accounting,  reporting, and disclosure requirements; and political or
social instability. In the past, equity and debt instruments of foreign issuers
have been more volatile than equity and debt instruments of U.S. issuers.

  Q  How are the decisions to buy and sell securities made?

  A  We normally  evaluate a universe of stocks with a dividend  stream growing
     faster than the average company.  A stock is selected based on independent
     research  of  the   following:   the  quality  of   management,   industry
     fundamentals,  and the  company's  future  prospects.  These  factors  are
     combined with an attractive  valuation to make the purchase  decision.  We
     sell stocks when one or more of these factors change for the worse.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.
    
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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. This fee was computed and paid at one-half of one percent (.50%) of
average net assets for the fiscal  year ended July 31,  1998.  We also  provide
services  related to selling the Fund's shares and receive no compensation  for
those services.
    

Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

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.

                                       8
<PAGE>
   
Portfolio Managers

A team of portfolio  managers is responsible  for the day-to-day  management of
the Fund's  portfolio.  The members of the team include  David G.  Peebles,  R.
David Ullom, and Stephan J. Klaffke,  who collectively have 69 years investment
management  experience and currently manage over $4 billion in assets. The team
meets  regularly  to review the  portfolio  holdings  of the Fund and will make
adjustments  when  appropriate  to keep  the Fund in line  with its  investment
objectives.

[PHOTOGRAPH OF PORTFOLIO MANAGER]
DAVID G. PEEBLES
David G. Peebles, Vice President of Equity Investments, has co-managed the Fund
since August 1998. He has 32 years  investment  management  experience  and has
worked for us for 14 years. Mr. Peebles earned the Chartered  Financial Analyst
(CFA)  designation  in 1971 and is a member of the  Association  for Investment
Management and Research (AIMR),  the San Antonio  Financial  Analysts  Society,
Inc. (SAFAS),  and the International  Society of Financial  Analysts (ISFA). He
holds an MBA and a BS from Texas Christian University.

[PHOTOGRAPH OF PORTFOLIO MANAGER]
R. DAVID ULLOM
R. David Ullom, Assistant Vice President of Equity Investments,  has co-managed
the Fund since August 1998. He has 23 years  investment  management  experience
and has worked for us for 12 years.  Mr.  Ullom earned the CFA  designation  in
1980  and is a  member  of AIMR and  SAFAS.  He  holds  an MBA from  Washington
University, Missouri, and a BS from Oklahoma State University.

[PHOTOGRAPH OF PORTFOLIO MANAGER]
STEPHAN J. KLAFFKE
Stephan J. Klaffke,  Assistant Vice President of Insurance Company  Portfolios,
has  co-managed  the  Fund  since  August  1998.  He  has 14  years  investment
management  experience and has worked for us for five years. Mr. Klaffke earned
the CFA  designation in 1987 and is a member of AIMR and SAFAS. He holds an MBA
from Texas Christian University and a BS from Indiana University.
    
                                       9
<PAGE>

USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example,  assume you wish to invest in a  widely-diversified,  common stock
portfolio.  You could  combine  an  investment  in the  Income  Stock Fund with
investments  in other  mutual  funds  that  invest in stocks of large and small
companies emphasizing capital appreciation as their primary objective.  This is
just one way you could combine funds to fit your own risk and reward goals.
    

III. USAA's Family of Funds
   
We offer you  another  alternative  with our  asset  strategy  funds  listed in
APPENDIX B under asset allocation on page 20. These unique mutual funds provide
a  professionally-managed,  diversified  investment  portfolio  within a mutual
fund.  Designed for the individual who prefers to delegate the asset allocation
process to an investment  manager,  their  structure  achieves  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

                                      10
<PAGE>

choices  covering just about any investor's  investment  objectives.  Our sales
representatives  stand  ready to assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 20 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    

MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
*   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

                                      11
<PAGE>

ADDITIONAL PURCHASES

*   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
*   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON
   
[HANDSHAKE GRAPHIC]
*   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288
    
BANK WIRE
   
[WIRE GRAPHIC]
*   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Income Stock Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s) ____________________________
       Shareholder(s) Mutual Fund Account Number__________
    

ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
*   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448
   
[TELEPHONE GRAPHIC]
*   If you have an existing  USAA mutual fund  account and would like to open a
    new account or exchange to another  USAA Fund,  call for  instructions.  To
    open an account by phone,  the new account must have the same  registration
    as your existing account.
    
                                      12
<PAGE>

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
In  addition,  the  Company may elect to suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
*   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
*   Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    

                                      13
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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);

    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  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;
    
                                      14
<PAGE>

*   redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.
    
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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

Portfolio  securities,  except  as  otherwise  noted,  traded  primarily  on  a
securities exchange are valued at the last sales price on that exchange.  If no
sale is reported, the average of the bid and asked prices is generally used.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

                                      15
<PAGE>

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net investment income dividends  quarterly.  Any net capital gain
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 payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.
   
We  will   automatically   reinvest  all  income  dividends  and  capital  gain
distributions  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 dividends or capital gain distributions paid by the Fund will reduce the
NAV per share by the amount of the dividend or  distribution.  These  dividends
and 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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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.

                                      16
<PAGE>

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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

<TABLE>
<CAPTION>

                                                                            Ten-Month
                                                                          Period Ended
                                         Year Ended July 31,                July 31,
                          -------------------------------------------------------------
                              1998        1997        1996        1995         1994
                          -------------------------------------------------------------
<S>                       <C>         <C>         <C>         <C>         <C>
Net asset value at
  beginning of period     $    19.01  $    15.85  $    14.96  $    13.50  $    14.95
Net investment income            .75         .81         .77         .74         .60
Net realized and
  unrealized gain (loss)        1.66        3.88        1.16        1.69       (1.12)
Distributions from net
  investment income             (.75)       (.79)       (.77)       (.75)       (.74)
Distributions of realized
   capital gains               (1.02)       (.74)       (.27)       (.22)       (.19)
                          -------------------------------------------------------------
Net asset value at
  end of period           $    19.65  $    19.01  $    15.85  $    14.96  $     13.50
                          =============================================================

Total return (%)*              13.28       31.46       13.21       18.83       (3.53)

Net assets at end of
  period (000)            $2,496,570  $2,186,329  $1,710,769  $1,408,371  $1,190,024

Ratio of expenses to
  average net assets (%)         .65         .68         .72         .75         .73(a)

Ratio of net investment
  income to average net
  assets (%)                    3.85        4.73        4.84        5.34        5.25(a)

Portfolio turnover (%)         22.34       34.95       32.38       34.94       24.82
</TABLE>

- --------------
  * Assumes reinvestment of all dividend income and capital gain  distributions
    during the period.
(a) Annualized.  The ratio  is  not  necessarily  indicative of  12  months  of
    operations.
    
                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

CONVERTIBLE SECURITIES
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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 also depends on the price of the underlying common stock.
    
ILLIQUID SECURITIES
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
MONEY MARKET INSTRUMENTS
   
We may hold a  certain  portion  of the  Fund's  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,  certificates  of  deposit,
bankers'  acceptances,  and  other  financial  institution  obligations.  These
securities may carry fixed or variable interest rates.
    
CALL OPTIONS

We may write  covered  call  options  with  respect  to not more than 5% of the
Fund's total assets.

                                      19
<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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      20
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.
 
                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                                  Income Fund

                               is included herein
    
<PAGE>
                                USAA INCOME FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy?......  2
Main Risks of Investing in This Fund............................  2
Is This Fund for You?...........................................  3
Could the Value of Your Investment in This Fund Fluctuate?......  3
Fees and Expenses...............................................  4
Fund Investments................................................  5
Fund Management.................................................  8
Using Mutual Funds in an Investment Program.....................  9
How to Invest................................................... 10
Important Information About Purchases and Redemptions........... 13
Exchanges....................................................... 14
Shareholder Information......................................... 15
Financial Highlights............................................ 18
Appendix A...................................................... 19
Appendix B...................................................... 22
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?
    
The Fund's investment objective is maximum current income without undue risk to
principal.  We will  attempt  to  achieve  the Fund's  objective  by  investing
primarily in income producing securities.
   
In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of  investing in this Fund are  interest  rate risk,  credit
risk, and market risk.

*   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline because of an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

*   CREDIT RISK  involves  the possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

*   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities will decline because of falls in the stock market,  reducing the
    value of individual  company's stocks  regardless of the success or failure
    of an individual company's operations.

An additional risk of the Fund described later in the Prospectus is the risk of
investing in real estate investment  trusts. As with other mutual funds, losing
money is an additional risk associated with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An  investment  in this Fund is not a deposit of USAA Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.
    
                                       2
<PAGE>

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.

IS THIS FUND FOR YOU?

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

   * You need steady income.
   * You are willing to accept moderate risk.
   * You are looking for a long-term investment.

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

   * Your primary goal is to maximize long-term growth.
   * You are unable or reluctant to invest for a period of four years or more.
   * You need an investment that provides tax-free income.
   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact, the value of your  investment  will likely increase or
decrease.  The bar chart  shown below  illustrates  the Fund's  volatility  and
performance from year to year over the past ten years.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                DISTRIBUTIONS.

[BAR CHART]
               
                   CALENDAR             TOTAL 
                     YEAR               RETURN
                     
                     1988                9.98%
                     1989               16.30%
                     1990                7.69%
                     1991               19.38%
                     1992                8.37%
                     1993                9.94%
                     1994               -5.21%
                     1995               24.47%
                     1996                1.33%
                     1997               11.05%

        THE FUND'S TOTAL RETURN FOR THE NINE-MONTH  PERIOD ENDED SEPTEMBER 30,
        1998, WAS _____%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 8.99%  (quarter  ending June 30,  1989) and the lowest total return
for a quarter was -5.83% (quarter ending March 31, 1994).

                                       3
<PAGE>
The table  below  shows how the Fund's  average  annual  returns  for the one-,
five-,  and  ten-year  periods and the life of the Fund  compared to those of a
broad-based securities market index. Remember,  historical performance does not
necessarily indicate what will happen in the future.

===============================================================================
 Average Annual
 Total Returns
 (for the periods ending      Past           Past          Past         Life of
 December 31, 1997)           1 Year        5 Years      10 Years        Fund
===============================================================================
  Income Fund                 11.05%         7.86%        10.03%        10.37%
- -------------------------------------------------------------------------------
  Lehman Bros. Aggregate
  Bond Index*                 9.65%          7.48%         9.18%          N/A
===============================================================================

*  THE  LEHMAN  BROS.  AGGREGATE  BOND  INDEX  IS AN  UNMANAGED  INDEX  OF  THE
   GOVERNMENT/CORPORATE  INDEX, THE  MORTGAGE-BACKED  SECURITIES INDEX, AND THE
   ASSET-BACKED SECURITIES INDEX.

YIELD

All mutual  funds must use the same formula to  calculate  yield.  The Fund may
advertise  performance in terms of a 30-day yield quotation.  The Fund's 30-day
yield for the period ended December 31, 1997, was 6.40%.

                            YIELD IS THE ANNUALIZED
                            NET INCOME OF THE FUND
                              DURING A SPECIFIED
                            PERIOD AS A PERCENTAGE
                           OF THE FUND'S SHARE PRICE.

You may  obtain  the most  current  yield  information  for the Fund by calling
1-800-531-8777.

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price,  yield, 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,  yields, and returns.  Then, press 40# when asked for
the Fund code.
    
                              [TELEPHONE GRAPHIC]
                                 TouchLINE (R)
                                1-800-531-8777
                                     PRESS
                                       1
                                     THEN
                                       1
                                     THEN
                                     4 0 #

                               NEWSPAPER SYMBOL
                                     Inco
   
                                 TICKER SYMBOL
                                     USAIX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "Inco." If you prefer to obtain  this  information  from an on-line
computer service, you can do so by using the ticker symbol "USAIX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund shares. However, if you sell shares and request your money by

                                       4
<PAGE>

wire  transfer,  there is a $10  fee.  (Your  bank  may  also  charge a fee for
receiving wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended July 31, 1998,  and are calculated as a percentage of average
net assets.

                                 12B-1 FEES -
                               SOME MUTUAL FUNDS
                               CHARGE THESE FEES
                                  TO PAY FOR
                                ADVERTISING AND
                                OTHER COSTS OF
                              SELLING FUND SHARES.

      Management Fees                                     .24%
      Distribution (12b-1) Fees                           None
      Other Expenses                                      .14%
                                                          ----
      Total Annual Fund Operating Expenses                .38%
                                                          ====

Example of Effect of Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                     1  year.......... $   39
                     3  years.........    122
                     5  years.........    213
                    10  years.........    480
    
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

   Q   What is the Fund's principal investment strategy?

   A   The Fund's principal  investment strategy is to invest the Fund's assets
       primarily in U.S. dollar-denominated  securities that have been selected
       for their high yields  relative to the risk  involved.  Consistent  with
       this policy,  when interest rates rise, we will invest a greater portion
       of the Fund's  portfolio in securities whose value we believe to be less
       sensitive to interest rate changes.
    
                                       5
<PAGE>
   
       As a temporary defensive measure because of market, economic, political,
       or other  conditions,  we may invest up to 100% of the Fund's  assets in
       investment-grade,  short-term debt instruments, which may result in  the
       Fund  not achieving  its investment objective during  the  time it is in
       this temporary defensive posture.
    
[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the  market  value of the bonds  will  decline  because of rising
interest rates. Bond prices are linked to the prevailing market interest rates.
In  general,  when  interest  rates  rise,  the  prices of bonds  fall and when
interest rates fall, bond prices generally rise. The price volatility of a bond
also depends on its maturity. Generally, the longer the maturity of a bond, the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.
   
   Q What types of securities are included in the Fund's portfolio?

   A The Fund's portfolio may consist of any of the following:

       *  obligations of the U.S. Government,its agents, and instrumentalities,
          and repurchase agreements collateralized by such obligations;
       *  mortgage-backed securities;
       *  asset-backed securities;
       *  corporate debt securities such as notes, bonds, and commercial paper;
       *  U.S. bank obligations, including certificates of deposit and banker's
          acceptances;
       *  obligation  of  state and  local governments  and their  agencies and
          instrumentalities;
       *  Eurodollar obligations;
       *  Yankee obligations;
       *  other debt securities;
       *  convertible securities;
       *  equity and debt securities of real estate investment trusts;
       *  common stocks; and
       *  preferred stocks.
    
       Further description of these securities is found  in  APPENDIX A on page
       19.

                                       6
<PAGE>
   
   Q   What will be the quality of the debt securities included in the Fund's 
       portfolio?

   A   The debt securities  included in the Fund's portfolio must be investment
       grade at the time of  purchase.  Investment-grade  securities  are those
       securities  issued or guaranteed by the U.S.  Government,  its agencies,
       and  instrumentalities;  those rated within the four  highest  long-term
       rating categories by:

       *  Moody's Investors Services, Inc.,
       *  Standard & Poor's Ratings Group,
       *  Fitch IBCA, Inc., or
    
       *  Duff and Phelps;

       or, if unrated  by those four  agencies,  we must  determine  that these
       securities are of equivalent investment quality.

       You will find a complete  description  of the above debt  ratings in the
       Fund's Statement of Additional Information.
   
[CAUTION LIGHT]
CREDIT RISK.  Credit risk is the  possibility  that an issuer of a fixed income
instrument  such as a bond or  repurchase  agreement  will fail to make  timely
payments of interest or  principal.  We attempt to minimize  the Fund's  credit
risk by  investing in  securities  considered  investment  grade at the time of
purchase. When evaluating potential investments for the Fund, our analysts also
assess credit risk and its impact on the Fund's portfolio.  Nevertheless,  even
investment-grade  securities are subject to some credit risk. Securities in the
lowest-rated,   investment-grade  category  have  speculative  characteristics.
Changes in economic  conditions or other  circumstances are more likely to lead
to a weakened  capability  to make  principal  and  interest  payments on these
securities  than is the case for  higher-rated  securities.  In  addition,  the
ratings  of  securities  are  estimates  by the rating  agencies  of the credit
quality of the  securities.  The ratings may not take into  account  every risk
related to whether interest or principal will be repaid on a timely basis.

   Q   What happens if the rating of a security is downgraded  below investment
       grade?

   A   We will  determine  whether  it is in the best  interest  of the  Fund's
       shareholders  to continue to hold the security in the Fund's  portfolio.
       If  downgrades  result in more than 5% of the Fund's  net  assets  being
       invested in securities that are less than  investment-grade  quality, we
       will take  immediate  action  to  reduce  the  Fund's  holdings  in such
       securities  to 5% or less of the Fund's  net  assets,  unless  otherwise
       directed by the Board of Directors.
    
                                       7
<PAGE>

   Q   What other risks apply to the Fund's portfolio?
   
       [CAUTION LIGHT]
   A   MARKET RISK. Because this Fund may invest in equity  securities,  it can
       be subject to stock  market  risk.  Stock  prices in general may decline
       over  short or even  extended  periods,  regardless  of the  success  or
       failure of an individual company's operations. Stock markets tend to run
       in cycles,  with  periods  when stock  prices  generally go up, known as
       "bull"  markets,  and  periods  when  stock  prices  generally  go down,
       referred to as "bear" markets.  Equity securities tend to go up and down
       more than bonds.

   Q   How are the decisions to buy and sell securities made?

   A   We search for securities  that represent value at the time given current
       market conditions.  For fixed income securities,  value is a combination
       of  yield,  credit  quality,  structure  (maturity,  coupon,  redemption
       features),   and   liquidity.   Recognizing   value  is  the  result  of
       simultaneously  analyzing  the  interaction  of these  factors among the
       securities  available in the market.  For common stocks,  value involves
       selecting dividend paying stocks, whose yields are sensitive to interest
       rate levels,  when their dividend  yields are close to bond yields which
       implies undervaluation. Such stocks are generally sold when their yields
       return to a normal relationship versus bonds through price appreciation.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.
    
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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. This fee was computed and paid at twenty-four one hundredths (.24%)
of average net assets for the fiscal year ended July 31, 1998.  We also provide
services  related to selling the Fund's shares and receive no compensation  for
those services.
    
                                       8
<PAGE>

Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

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
   
[PHOTOGRAPH OF PORTFOLIO MANAGER]
JOHN W. SAUNDERS
John W. Saunders,  Jr., Senior Vice President of Fixed Income Investments,  has
managed the Fund since  October  1985.  He has 29 years  investment  management
experience  and  has  worked  for us for 28  years.  Mr.  Saunders  earned  the
Chartered  Financial  Analyst  designation  in  1976  and  is a  member  of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial Analysts Society,  Inc. He holds a BS from Portland State University,
Oregon.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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.

                                       9
<PAGE>

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example, assume you wish to invest in a widely-diversified  portfolio.  You
could combine an investment in the Income Fund with investments in other mutual
funds  that  invest in stocks of large and small  companies  and  high-dividend
stocks.  This is just one way you could  combine funds to fit your own risk and
reward goals.
    
III. USAA's Family of Funds
   
We offer you  another  alternative  with our  asset  strategy  funds  listed in
APPENDIX B under asset allocation on page 22. These unique mutual funds provide
a  professionally-managed,  diversified  investment  portfolio  within a mutual
fund.  Designed for the individual who prefers to delegate the asset allocation
process to an investment  manager,  their  structure  achieves  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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 22 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
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 

                                      10
<PAGE>
(generally  4:00 p.m.  Eastern Time) of the New York Stock Exchange (NYSE) each
day the NYSE is open.  If we receive  your  request and  payment  prior to that
time, your purchase price will be the NAV per share determined for that day. If
we receive your request or payment after 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. This will avoid a potential delay
in the effective date 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.
    
MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
* $3,000 [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts and
  $250  for  IRAs]  or no  initial  investment  if you  elect  to have  monthly
  electronic  investments  of at least  $50  each.  We may  periodically  offer
  programs that reduce the minimum amounts for monthly electronic  investments.
  Employees of USAA and its  affiliated  companies may open an account  through
  payroll  deduction  for as  little  as $25 per  pay  period  with no  initial
  investment.

ADDITIONAL PURCHASES

* $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
* To open an account, send your application and check to:
    USAA Investment Management Company
    9800 Fredericksburg Road
    San Antonio, TX 78288
* To add  to your  account, send your check  and the "Invest by Mail" stub that
  accompanies your Fund's transaction confirmation to the Transfer Agent:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288

IN PERSON
   
[HANDSHAKE GRAPHIC]
* To open an account, bring your application and check to:
    USAA Investment Management Company
    USAA Federal Savings Bank
    10750 Robert F. McDermott Freeway
    San Antonio, TX 78288
    
                                      11
<PAGE>
BANK WIRE
   
[WIRE GRAPHIC]
* Instruct  your  bank  (which may  charge a fee for the  service)  to wire the
  specified amount to the Fund as follows:
    State Street Bank and Trust Company
    Boston, MA 02101
    ABA#011000028
    Attn: USAA Income Fund
    USAA Account Number: 69384998
    Shareholder(s) Name(s)_____________________________________________
    Shareholder(s) Mutual Fund Account Number__________________________
    
ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
* Additional  purchases on a regular basis can be deducted from a bank account,
  paycheck,  income-producing  investment,  or USAA money market fund  account.
  Sign up for these services when opening an account or call  1-800-531-8448 to
  add these services.

PHONE 1-800-531-8448
   
[TELEPHONE GRAPHIC]
* If you have an existing USAA mutual fund account and would like to open a new
  account or exchange to another USAA Fund, call for  instructions.  To open an
  account by phone,  the new account  must have the same  registration  as your
  existing account.
    
REDEMPTION OF SHARES

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
In  addition,  the  Company may elect to suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

                                      12
<PAGE>

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
* Send your written instructions to:
    USAA Shareholder Account Services
    9800 Fredericksburg Road
    San Antonio, TX 78288
* Send a signed fax to 1-800-292-8177, or  send a  telegram to USAA Shareholder
  Account Services.
* Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the Investor's Guide to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the Investor's  Guide,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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  

                                      13
<PAGE>
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);  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  transactions  or  changes  in  account
  information  in those  instances  where the  appropriateness  of a  signature
  authorization  is  in  question.  The  Statement  of  Additional  Information
  contains information on acceptable guarantors;
    
* redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.
    
                                      14
<PAGE>

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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                     EQUALS
                                 TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

Portfolio  securities,  except  as  otherwise  noted,  traded  primarily  on  a
securities exchange are valued at the last sales price on that exchange.  If no
sale is reported, the average of the bid and asked prices is generally used.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net  investment  income  monthly  based on the  projection of its
annual  net  investment   income.   Therefore,   the  amount  of  each  monthly
distribution  may be  different  from the actual  net  investment  income.  The
purpose of this  distribution  procedure  is to attempt to provide  you with an
even monthly distribution  payment. If the total distributions in a year exceed
net  investment  income  for  the  Fund's  current  year,  a  portion  of  your
distributions  could be a return of capital for federal income tax purposes and
thereby  reduce  your  cost  basis  in  the  Fund's  shares.   If  you  receive
distributions  in additional Fund shares rather than cash, the capital returned

                                      15
<PAGE>

would be automatically reinvested,  and your total cost basis in the Fund would
remain the same.  Any net capital gain  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  payments  to  shareholders,  if
necessary, to avoid the imposition of any federal income or excise tax.

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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.
    
                                      16
<PAGE>
   
Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.
    

                                      17
<PAGE>
   
FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.
<TABLE>
<CAPTION>

                                                                        Ten-Month
                                                                       Period Ended
                                        Year Ended July 31,              July 31,
                         ------------------------------------------------------------
                               1998        1997        1996      1995       1994
                         ------------------------------------------------------------
<S>                      <C>          <C>          <C>         <C>         <C>
Net asset value at
  beginning of period    $    12.54   $    11.97   $    12.11  $    11.67  $    13.28
Net investment income           .85          .83          .83         .84         .72
Net realized and
  unrealized gain (loss)        .33          .57         (.13)        .45       (1.30)
Distributions from net
  investment income            (.84)        (.83)        (.84)       (.85)       (.78)
Distributions of realized
  capital gains                 -            -            -           -          (.25)
                         ------------------------------------------------------------
Net asset value at
  end of period          $    12.88   $    12.54   $    11.97  $    12.11  $    11.67
                         ============================================================
Total return (%)*              9.72        12.15         5.78       11.64       (4.52)
Net assets at end of
  period (000)           $1,751,574   $1,662,981   $1,737,306  $1,755,171  $1,718,934
Ratio of expenses to
  average net assets (%)        .38          .39          .40         .41         .41(a)
Ratio of net investment
  income to average net
  assets (%)                   6.62         6.76         6.64        7.27        6.98(a)
Portfolio turnover (%)        47.35(b)     57.50(b)     81.26(b)    30.86(b)    25.36(b)
</TABLE>
- -----------------
*   Assumes reinvestment of all dividend income and capital gain  distributions
    during the period.
(a) Annualized.  The  ratio is not  necessarily  indicative  of  12  months  of
    operations.
(b) At  times,  the  Fund  has  simultaneously  purchased  and  sold  the  same
    securities.  These  transactions  sometimes  were high in  volume  and were
    dissimilar to other trade activity  within the Fund. If these  transactions
    were excluded from the calculation,  the portfolio turnover rate would have
    been:
<TABLE>
<CAPTION>
                                                                        Ten-Month
                                                                       Period Ended
                                        Year Ended July 31,              July 31,
                         ------------------------------------------------------------
                               1998        1997        1996      1995       1994
                         ------------------------------------------------------------
<S>                      <C>         <C>         <C>         <C>        <C>

Portfolio turnover (%)        42.11        22.07        44.69        9.09       16.79
Purchases and sales of this type are as follows:
Purchases (000)          $   88,811   $  593,587  $   648,396  $  360,943  $  155,322
Sales (000)              $   88,915   $  594,283  $   649,193  $  361,366  $  155,497
</TABLE>
    

                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

PUT BONDS
   
We may  invest the  Fund's  assets in  securities  (including  securities  with
variable interest rates) which may be redeemed or sold back (put) to the issuer
of the security or a third party prior to stated  maturity  (put  bonds).  Such
securities  will  normally  trade as if maturity is the earlier put date,  even
though stated maturity is longer.
    
REPURCHASE AGREEMENTS
   
We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.
    
VARIABLE RATE SECURITIES
   
We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.
    
*   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

*   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

*   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

WHEN-ISSUED SECURITIES
   
We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.
    
*   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.

*   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.

*   Such securities can be sold before settlement date.

                                      19
<PAGE>

MORTGAGE-BACKED AND ASSET-BACKED SECURITIES
   
We may invest the Fund's assets in mortgage-backed and asset-backed securities.
Mortgage-backed  securities include,  but are not limited to, securities issued
by the  Government  National  Mortgage  Association  (Ginnie Mae),  the Federal
National Mortgage  Association  (Fannie Mae) and the Federal Home Loan Mortgage
Corporation  (Freddie Mac). These securities  represent  ownership in a pool of
mortgage loans. They differ from  conventional  bonds in that principal is paid
back to the  investor as payments are made on the  underlying  mortgages in the
pool.  Accordingly,  the Fund receives monthly scheduled  payments of principal
and interest along with any unscheduled principal prepayments on the underlying
mortgages.  Because these scheduled and unscheduled  principal payments must be
reinvested  at prevailing  interest  rates,  mortgage-backed  securities do not
provide  an  effective  means of locking in  long-term  interest  rates for the
investor.  Like other fixed income  securities,  when interest  rates rise, the
value of a  mortgage-backed  security  generally  will decline;  however,  when
interest  rates are declining,  the value of  mortgage-backed  securities  with
prepayment features may not increase as much as other fixed income securities.
    
Mortgage-backed  securities also include  collateralized  mortgage  obligations
(CMOs).  CMOs are obligations fully  collateralized by a portfolio of mortgages
or  mortgage-related  securities.  CMOs are divided into pieces (tranches) with
varying maturities.  The cash flow from the underlying mortgages is used to pay
off each tranche  separately.  CMOs are designed to provide investors with more
predictable maturities than regular mortgage securities but such maturities can
be  difficult  to  predict  because of the  effect of  prepayments.  Failure to
accurately predict  prepayments can adversely affect the Fund's return on these
investments. CMOs may also be less marketable than other securities.

Asset-backed  securities  represent a  participation  in, or are secured by and
payable  from, a stream of payments  generated by  particular  assets,  such as
credit card,  motor vehicle,  or trade  receivables.  They may be  pass-through
certificates,  which  have  characteristics  very  similar  to  mortgage-backed
securities,  discussed  above.  They may  also be in the  form of  asset-backed
commercial paper, which is issued by a special purpose entity, organized solely
to issue the  commercial  paper and to purchase  interests  in the assets.  The
credit quality of these  securities  depends  primarily upon the quality of the
underlying assets and the level of credit support and enhancement provided.

The weighted  average  life of such  securities  is likely to be  substantially
shorter  than their stated  final  maturity as a result of scheduled  principal
payments and unscheduled principal prepayments.

EURODOLLAR AND YANKEE OBLIGATIONS

We may invest a portion of the Fund's assets in dollar-denominated  instruments
that have been issued outside the U.S. capital markets by foreign  corporations
and financial  institutions  and by foreign  branches of U.S.  corporations and
financial institutions  (Eurodollar) as well as dollar-denominated  instruments
that have been issued by foreign issuers in the U.S. capital markets  (Yankee).
In addition,  we may invest a portion of the Fund's  assets in  Eurodollar  and
Yankee obligations of investment-grade emerging market countries.

                                      20
<PAGE>

MASTER DEMAND NOTES

We may invest the Fund's assets in master demand notes,  which are  obligations
that permit the investment of fluctuating amounts by the Fund, at varying rates
of interest  using direct  arrangements  between the Fund,  as lender,  and the
borrower.  These notes permit daily changes in the amounts  borrowed.  The Fund
has the right to increase  the amount under the note at any time up to the full
amount  provided  by the note  agreement,  or to decrease  the amount,  and the
borrower  may  repay  up to the  full  amount  of  the  note  without  penalty.
Frequently,  such  obligations are secured by letters of credit or other credit
support arrangements  provided by banks. Because master demand notes are direct
lending  arrangements  between  the  lender  and  borrower,  these  instruments
generally will not be traded,  and there  generally is no secondary  market for
these notes,  although they are redeemable  (and  immediately  repayable by the
borrower) at face value, plus accrued interest, at any time. We will invest the
Fund's  assets in master  demand  notes only if the Board of  Directors  or its
delegate has determined that they are of credit quality  comparable to the debt
securities in which the Fund generally may invest.

CONVERTIBLE SECURITIES
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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 also depends on the price of the underlying common stock.
    
ILLIQUID SECURITIES
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.

REAL ESTATE INVESTMENT TRUSTS (REITs)

We may invest the Fund's  assets in REITs which may subject the Fund to many of
the  same  risks   associated  with  the  direct   ownership  of  real  estate.
Additionally, REITs are dependent upon the capabilities of the REIT manager(s),
have limited diversification, and could be significantly impacted by changes in
tax laws.
    
                                      21
<PAGE>

                                   APPENDIX B

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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      22
<PAGE>

                                     NOTES
                                     
<PAGE>

   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                              Short-Term Bond Fund

                               is included herein
    
<PAGE>
                                USAA SHORT-TERM
                                   BOND FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy? ...  2
Main Risks of Investing in This Fund .........................  2
Is This Fund for You? ........................................  3
Could the Value of Your Investment in This Fund Fluctuate? ...  3
Fees and Expenses ............................................  4
Fund Investments .............................................  6
Fund Management ..............................................  9
Using Mutual Funds in an Investment Program ..................  9
How to Invest ................................................ 10
Important Information About Purchases and Redemptions ........ 14
Exchanges .................................................... 15
Shareholder Information ...................................... 15
Financial Highlights ......................................... 18
Appendix A ................................................... 19
Appendix B ................................................... 22
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The  Fund's  investment  objective  is  high  current  income  consistent  with
preservation of principal.  We will attempt to achieve the Fund's  objective by
investing the Fund's assets primarily in a broad range of investment-grade debt
securities.  We will maintain a dollar-weighted  average portfolio  maturity of
three years or less.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of investing in this Fund are credit risk and interest  rate
risk.

*   CREDIT RISK  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

*   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline because of an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

    The Fund is also subject to prepayment  risk and risks of investing in real
    estate investment trusts,  which are discussed later in the Prospectus.  As
    with other mutual funds, losing money is an additional risk associated with
    investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An  investment  in this Fund is not a deposit of USAA Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.
    
                                       2
<PAGE>

IS THIS FUND FOR YOU?

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

   *  You are looking for current income.
   *  You are looking for an investment that is low risk.
   *  You are looking for a short-term investment.

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

   *  Your primary goal is to maximize long-term growth.
   *  You need a high total return to achieve your goals.
   *  You need an investment that provides tax-free income.
   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact, the value of your  investment  will likely increase or
decrease.  The bar chart  shown below  illustrates  the Fund's  volatility  and
performance from year to year over the life of the Fund.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
      CALENDAR      TOTAL
        YEAR        RETURN

        1994*         .02%
        1995        11.18%
        1996         6.31%
        1997         7.16%

    * FUND BEGAN OPERATIONS ON JUNE 1, 1993.

    THE FUND'S TOTAL RETURN FOR THE NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1998,
    WAS ____%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 4.72%  (quarter  ending June 30,  1995) and the lowest total return
for a quarter was -.82% (quarter ending March 31, 1994).

                                       3
<PAGE>

The table below shows how the Fund's  average  annual  returns for the one-year
period  as well as the life of the  Fund  compared  to  those of a  broad-based
securities market index. Remember,  historical performance does not necessarily
indicate what will happen in the future.

=====================================================================
  Average Annual Total Returns                        Since Fund's
  (for the periods ending                Past         Inception on
  December 31, 1997)                    1 Year        June 1, 1993
=====================================================================
  Short-Term Bond Fund                   7.16%            5.94%
- ---------------------------------------------------------------------
  Lehman Bros. 1-3 Gov't Corp Index*     6.66%            5.66%
=====================================================================
* THE LEHMAN BROS. 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.

YIELD

                                 YIELD IS THE
                                ANNUALIZED NET
                                 INCOME OF THE
                                 FUND DURING A
                               SPECIFIED PERIOD
                                AS A PERCENTAGE
                                 OF THE FUND'S
                                 SHARE PRICE.

All mutual funds must use the same  formulas to calculate  yield.  The Fund may
advertise  performance in terms of a 30-day yield quotation.  The Fund's 30-day
yield for the period ended December 31, 1997, was 6.14%.

You may  obtain  the most  current  yield  information  for the Fund by calling
1-800-531-8777.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 3 6 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  The value of your shares may go up or
down. For the most current price,  yield, 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,  yields, and returns.  Then, press 36# when asked for
the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                    ShtTBond

                                     TICKER
                                     SYMBOL
                                     USSBX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol "ShtTBond." If you prefer to obtain this information from an on-line
computer service, you can do so by using the ticker symbol "USSBX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund shares. However, if you sell shares and request your money by

                                       4
<PAGE>

wire  transfer,  there is a $10  fee.  (Your  bank  may  also  charge a fee for
receiving wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual  expenses before waivers
during the past  fiscal  year  ended July 31,  1998,  and are  calculated  as a
percentage of average net assets (ANA).

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

          Management Fees                        .24%
          Distribution (12b-1) Fees              None
          Other Expenses                         .32%
                                                 ----
          Total Annual Fund Operating Expenses*  .56%
                                                 ====
- --------------
     * During the year, we voluntarily  limited the Total Annual Fund Operating
       Expenses to .50% as follows:

              Total Annual Fund Operating Expenses     .56%
              Reimbursement from USAA Investment
                Management Company                    (.06%)
                                                       ----
              Actual Fund Operating Expenses
                After Reimbursement                    .50%
                                                       ====

       We have  voluntarily  agreed to limit the Fund's annual expenses to .50%
       of its ANA and will  reimburse  the Fund for all  expenses  in excess of
       that amount until December 1, 1999.

Example of Effect of Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
(before any applicable  reimbursement)  remain the same, and (3) you redeem all
of your shares at the end of the periods shown.

                     1 year.............. $  57
                     3 years.............   179
                     5 years.............   313
                    10 years.............   701
    
                                       5
<PAGE>

FUND INVESTMENTS
   
Principal Investment Strategies and Risks

  Q  What is the Fund's principal investment strategy?

                                    DOLLAR-
                                   WEIGHTED
                                    AVERAGE
                                   PORTFOLIO
                                  MATURITY IS
                                  OBTAINED BY
                                  MULTIPLYING
                                  THE DOLLAR
                                 VALUE OF EACH
                                  INVESTMENT
                                 BY THE NUMBER
                                OF DAYS LEFT TO
                                 ITS MATURITY,
                                  THEN ADDING
                                 THOSE FIGURES
                                 TOGETHER AND
                                 DIVIDING THE
                                 TOTAL BY THE
                                 DOLLAR VALUE
                                 OF THE FUND'S
                                  PORTFOLIO.

  A  The Fund's  principal  investment  strategy is to invest the Fund's assets
     primarily in U.S.  dollar-denominated  investment-grade  debt  securities.
     These debt securities must be investment grade at the time of purchase. We
     will maintain a dollar-weighted  average portfolio maturity of three years
     or less.

  Q  What types of debt securities are included in the Fund's portfolio?

  A  The Fund's portfolio may consist of any of the following:

     * obligations of the U.S. Government,  its agents, and  instrumentalities,
       and repurchase agreements collateralized by such obligations;
     * mortgage-backed securities;
     * asset-backed securities;
     * corporate debt securities such as notes, bonds, and commercial paper;
     * debt securities of real estate investment trusts (REITs);
     * U.S. bank or foreign bank obligations, including certificates of deposit
       and banker's acceptances;
     * obligations  of state  and local  governments  and  their  agencies  and
       instrumentalities;
     * Eurodollar obligations;
     * Yankee obligations; and
     * other debt securities.

     Further description of these securities is found in APPENDIX A on page 19.
    
  Q  What are considered investment-grade securities?

  A  Investment-grade securities include securities issued or guaranteed by the
     U.S.  Government,   its  agencies,  and  instrumentalities,   as  well  as
     securities  rated within the  categories  listed by the  following  rating
     agencies:

                                       6
<PAGE>

    ===========================================================================
                             LONG-TERM             SHORT-TERM
    RATING AGENCY          DEBT SECURITIES       DEBT SECURITIES
    ===========================================================================
    Moody's Investors                            At least Prime-3
       Services, Inc.      At least Baa          or MIG 4/VMIG 4
    ---------------------------------------------------------------------------
    Standard & Poor's                            At least A-3
       Ratings Group       At least BBB          or SP-2
    ---------------------------------------------------------------------------
   
    Fitch IBCA, Inc.       At least BBB          At least F-3
        
    ---------------------------------------------------------------------------
    Duff and Phelps        At least BBB          At least D-3
    ===========================================================================

     or if  unrated  by those  four  agencies,  we must  determine  that  these
     securities are of equivalent investment quality.

     You will find a  complete  description  of the above  debt  ratings in the
     Fund's Statement of Additional Information.
   
  Q  What happens if the rating of a security is  downgraded  below  investment
     grade?

  A  We  will  determine  whether  it is in the  best  interest  of the  Fund's
     shareholders to continue to hold the security in the Fund's portfolio.  If
     downgrades  result in more than 5% of the Fund's net assets being invested
     in securities that are less than  investment-grade  quality,  we will take
     immediate action to reduce the Fund's holdings in such securities to 5% or
     less of the Fund's net assets,  unless otherwise  directed by the Board of
     Directors.

[CAUTION LIGHT]
CREDIT  RISK.  The bonds in the Fund's  portfolio  are subject to credit  risk.
Credit risk is the possibility that an issuer of a fixed income instrument such
as a bond or repurchase agreement will fail to make timely payments of interest
or  principal.  We attempt to minimize  the Fund's  credit risk by investing in
securities considered investment grade at the time of purchase. When evaluating
potential  investments  for the Fund,  our analysts also assess credit risk and
its  impact  on  the  Fund's  portfolio.  Nevertheless,  even  investment-grade
securities  are subject to some credit risk.  Securities  in the  lowest-rated,
investment-grade category have speculative characteristics. Changes in economic
conditions  or  other  circumstances  are  more  likely  to lead to a  weakened
capability to make principal and interest  payments on these securities than is
the case for higher-rated  securities.  In addition,  the ratings of securities
are estimates by the rating  agencies of the credit quality of the  securities.
The ratings may not take into account every risk related to whether interest or
principal will be repaid on a timely basis.
    
                                       7
<PAGE>

[CAUTION LIGHT]
INTEREST RATE RISK. As a mutual fund investing in bonds, the Fund is subject to
the risk that the market value of the bonds will decline due to rising interest
rates.  Bond prices are linked to the  prevailing  market  interest  rates.  In
general,  when interest  rates rise, the prices of bonds fall and when interest
rates fall,  bond prices  generally  rise. The price  volatility of a bond also
depends on its  maturity.  Generally,  the longer the  maturity of a bond,  the
greater its  sensitivity to interest  rates.  To compensate  investors for this
higher risk,  bonds with longer  maturities  generally offer higher yields than
bonds with shorter maturities.
   
[CAUTION LIGHT]
PREPAYMENT  RISK.  Mortgagors may generally pay off mortgages  without  penalty
before the due date.  When mortgaged  property is sold,  which can occur at any
time for a variety of reasons, the old mortgage is usually prepaid.  Also, when
mortgage  interest  rates  fall  far  enough  to make  refinancing  attractive,
prepayments  tend  to  accelerate.  Prepayments  require  reinvestment  of  the
principal at the  then-current  level of interest  rates,  which are often at a
lower level than when the mortgages were  originally  issued.  Reinvestment  at
lower rates  tends to reduce the  interest  payments  received by the Fund and,
therefore,  the size of the dividend  payments  available to  shareholders.  If
reinvestment occurs at a higher level of interest rates, the opposite effect is
true.

[CAUTION LIGHT]
REITS.  Investing  in REITs  may  subject  the  Fund to many of the same  risks
associated with the direct  ownership of real estate.  Additionally,  REITs are
dependent  upon  the  capabilities  of  the  REIT   manager(s),   have  limited
diversification,  and could be  significantly  impacted by changes in tax laws.
Moreover,  by  investing  in the debt  securities  of  REITs,  the Fund is also
subject to credit risk.

  Q  How are the decisions to buy and sell securities made?

  A  We search for securities  that  represent  value at the time given current
     market  conditions.  Value is a  combination  of  yield,  credit  quality,
     structure   (maturity,   coupon,   redemption   features)  and  liquidity.
     Recognizing   value  is  the  result  of   simultaneously   analyzing  the
     interaction of these factors among the securities available in the market.
     We will sell a security if we become  concerned  about its credit risk, we
     are forced by market factors to raise money, or an attractive  replacement
     is available.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.
    

                                       8
<PAGE>

FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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 is computed at  twenty-four  one  hundredths of one percent
(.24%) of average  net assets.  The fee we  received  for the fiscal year ended
July 31, 1998, after  reimbursements  we made to the Fund, was equal to .18% of
average  net assets.  We also  provide  services  related to selling the Fund's
shares and receive no compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

Portfolio Manager
   
[PHOTOGRAPH OF PORTFOLIO MANAGER]
PAUL H. LUNDMARK
Paul H. Lundmark,  Assistant Vice  President of Fixed Income  Investments,  has
managed the Fund since its  inception in June 1993.  Mr.  Lundmark has 12 years
investment management experience and has worked for us for six years. He earned
the  Chartered  Financial  Analyst  designation  in 1989 and is a member of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial Analysts Society, Inc. He holds an MBA and BSB from the University of
Minnesota.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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,

                                       9
<PAGE>

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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example, assume you wish to invest in a widely-diversified  portfolio.  You
could combine an investment in the  Short-Term  Bond Fund with  investments  in
other  mutual  funds  that  invest in stocks of large and small  companies  and
high-dividend  stocks. This is just one way you could combine funds to fit your
own risk and reward goals.
    
III. USAA's Family of Funds
   
We offer you  another  alternative  with our  asset  strategy  funds  listed in
APPENDIX B under asset allocation on page 22. These unique mutual funds provide
a  professionally-managed,  diversified  investment  portfolio  within a mutual
fund.  Designed for the individual who prefers to delegate the asset allocation
process to an investment  manager,  their  structure  achieves  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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 22 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed application is required for each new account. However,

                                      10
<PAGE>

after  you open your  initial  account  with us,  you will not need to fill out
another application unless the registration is different.
    
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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    
MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
*   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

*   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
*   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288

                                      11
<PAGE>

*   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON
   
[HANDSHAKE GRAPHIC]
*   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288
    

BANK WIRE
   
[WIRE GRAPHIC]
*   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Short-Term Bond Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s) _________________________________________
       Shareholder(s) Mutual Fund Account Number ______________________
    
ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
*   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448
   
[TELEPHONE GRAPHIC]
*   If you have an existing  USAA mutual fund  account and would like to open a
    new account or exchange to another  USAA Fund,  call for  instructions.  To
    open an account by phone,  the new account must have the same  registration
    as your existing account.
    

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption. Payment for redemption of shares purchased by EFT or check is

                                      12
<PAGE>

sent after the EFT or check 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. Redemptions
are  subject to taxes based on the  difference  between the cost of shares when
purchased and the price received upon redemption.
    

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

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
*   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
*   Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
CHECKWRITING

[CHECKBOOK GRAPHIC]
*   Return a signed signature card,  which  accompanies  your  application,  or
    request a signature card separately and return to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

Your checkwriting privilege is subject to State Street Bank and Trust Company's
rules and regulations governing checking accounts.  You may write checks in the
amount of $250 or more. Any checks written for less than $250 will be returned.
You will not be  charged  for the use of  checks  or any  subsequent  reorders.
Because the value of your account  changes daily as dividends  accrue,  you may
not write a check to close your account. Remember, writing a check results in a
taxable event and is therefore reportable for federal tax purposes.

                                      13
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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);  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  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;
    
                                      14
<PAGE>

*   redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.
    
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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                    EQUALS
                                 TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                  DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

Portfolio  securities,  except  as  otherwise  noted,  traded  primarily  on  a
securities exchange are valued at the last sales price on that exchange.  If no
sale is reported, the average of the bid and asked prices is generally used.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

                                      15
<PAGE>

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at fair
value using methods we have  determined  under the general  supervision  of the
Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

Net investment income is accrued daily and paid on the last business day of the
month.  Daily  dividends  are  declared  at the  time  the  NAV  per  share  is
calculated.  Dividends  shall  begin  accruing  on  shares  purchased  the  day
following the effective date and shall continue to accrue to the effective date
of redemption.  When you choose to receive cash dividends monthly, we will send
you those funds that have accrued  during the month after the payment date. Any
net capital  gain  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 payments to shareholders,  if necessary, to avoid the
imposition of any federal income or excise tax.
   
We  will   automatically   reinvest  all  income  dividends  and  capital  gain
distributions  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
capital gain distribution paid by the Fund will reduce the NAV per share by the
amount of the  distribution.  These dividends and  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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

                                      16
<PAGE>

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you as ordinary  income,  whether
received in cash or reinvested in additional shares.

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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

                                                                     Ten-Month
                                                                   Period Ended
                                  Year Ended July 31,                July 31,
                      ---------------------------------------------------------
                        1998       1997        1996       1995         1994
                      ---------------------------------------------------------
Net asset value at
  beginning of period $  10.03   $   9.79    $   9.87    $  9.74     $ 10.08
Net investment income      .62        .61         .62        .61         .37
Net realized and
  unrealized gain (loss)  (.04)       .25        (.08)       .13        (.33)
Distributions from net
  investment income       (.62)      (.61)       (.62)      (.61)       (.37)
Distributions of realized
   capital gains           --        (.01)        --         --         (.01)
                      ---------------------------------------------------------
Net asset value at
  end of period       $   9.99   $  10.03    $   9.79    $  9.87     $  9.74
                      =========================================================
Total return (%)*         5.91       8.97        5.62       7.90         .39
Net assets at end of
  period (000)        $181,171   $133,746    $101,032    $76,190     $48,228

Ratio of expenses to
  average net assets (%)   .50        .50         .50        .50         .50(a)

Ratio of expenses
  to average net
  assets excluding
  reimbursements (%)       .56        .61         .66        .74         .87(a)

Ratio of net investment
  income to average net
  assets (%)              6.16       6.14        6.29       6.34        4.51(a)

Portfolio turnover (%)   48.24      27.85       66.81     103.02      142.08
- --------------
  * Assumes reinvestment of all dividend income and capital gain  distributions
    during the period.
(a) Annualized.  The ratio  is not  necessarily  indicative  of  12  months  of
    operations.
    
                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

PUT BONDS
   
We may  invest the  Fund's  assets in  securities  (including  securities  with
variable interest rates) which may be redeemed or sold back (put) to the issuer
of the security or a third party prior to stated  maturity  (put  bonds).  Such
securities  will  normally  trade as if maturity is the earlier put date,  even
though stated maturity is longer.
    
VARIABLE RATE SECURITIES
   
We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.
    
*   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.
*   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.
*   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

WHEN-ISSUED SECURITIES
   
We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.
    
*   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.
*   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.
*   Such securities can be sold before settlement date.

REPURCHASE AGREEMENTS
   
We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.
    
                                      19
<PAGE>

MUNICIPAL LEASE OBLIGATIONS
   
We may  invest  the Funds  assets in a variety of  instruments  referred  to as
municipal lease obligations, including:
    
*   Leases,
*   Installment purchase contracts, and
*   Certificates of participation in such leases and contracts.

MORTGAGE-BACKED AND ASSET-BACKED SECURITIES

We may invest the Fund's assets in mortgage-backed and asset-backed securities.
Mortgage-backed  securities include,  but are not limited to, securities issued
by the  Government  National  Mortgage  Association  (Ginnie Mae),  the Federal
National Mortgage  Association  (Fannie Mae) and the Federal Home Loan Mortgage
Corporation  (Freddie Mac). These securities  represent  ownership in a pool of
mortgage loans. They differ from  conventional  bonds in that principal is paid
back to the  investor as payments are made on the  underlying  mortgages in the
pool.  Accordingly,  the Fund receives monthly scheduled  payments of principal
and interest along with any unscheduled principal prepayments on the underlying
mortgages.  Because these scheduled and unscheduled  principal payments must be
reinvested  at prevailing  interest  rates,  mortgage-backed  securities do not
provide  an  effective  means of locking in  long-term  interest  rates for the
investor.  Like other fixed income  securities,  when interest  rates rise, the
value of a  mortgage-backed  security  generally  will decline;  however,  when
interest  rates are declining,  the value of  mortgage-backed  securities  with
prepayment features may not increase as much as other fixed income securities.

Mortgage-backed  securities also include  collateralized  mortgage  obligations
(CMOs).  CMOs are obligations fully  collateralized by a portfolio of mortgages
or  mortgage-related  securities.  CMOs are divided into pieces (tranches) with
varying maturities.  The cash flow from the underlying mortgages is used to pay
off each tranche  separately.  CMOs are designed to provide investors with more
predictable maturities than regular mortgage securities but such maturities can
be  difficult  to  predict  because of the  effect of  prepayments.  Failure to
accurately predict  prepayments can adversely affect the Fund's return on these
investments. CMOs may also be less marketable than other securities.

Asset-backed  securities  represent a  participation  in, or are secured by and
payable  from, a stream of payments  generated by  particular  assets,  such as
credit card,  motor vehicle,  or trade  receivables.  They may be  pass-through
certificates,  which  have  characteristics  very  similar  to  mortgage-backed
securities,  discussed  above.  They may  also be in the  form of  asset-backed
commercial paper, which is issued by a special purpose entity, organized solely
to issue the  commercial  paper and to purchase  interests  in the assets.  The
credit quality of these  securities  depends  primarily upon the quality of the
underlying assets and the level of credit support and enhancement provided.

                                      20
<PAGE>

The weighted  average  life of such  securities  is likely to be  substantially
shorter  than their stated  final  maturity as a result of scheduled  principal
payments and unscheduled principal prepayments.

EURODOLLAR AND YANKEE OBLIGATIONS

We may invest a portion of the Fund's assets in dollar-denominated  instruments
that have been issued outside the U.S. capital markets by foreign  corporations
and financial  institutions  and by foreign  branches of U.S.  corporations and
financial institutions  (Eurodollar) as well as dollar-denominated  instruments
that have been issued by foreign issuers in the U.S. capital markets  (Yankee).
In addition,  we may invest a portion of the Fund's  assets in  Eurodollar  and
Yankee obligations of investment-grade emerging market countries.

MASTER DEMAND NOTES

We may invest the Fund's assets in master demand notes,  which are  obligations
that permit the investment of fluctuating amounts by the Fund, at varying rates
of interest  using direct  arrangements  between the Fund,  as lender,  and the
borrower.  These notes permit daily changes in the amounts  borrowed.  The Fund
has the right to increase  the amount under the note at any time up to the full
amount  provided  by the note  agreement,  or to decrease  the amount,  and the
borrower  may  repay  up to the  full  amount  of  the  note  without  penalty.
Frequently,  such  obligations are secured by letters of credit or other credit
support arrangements  provided by banks. Because master demand notes are direct
lending  arrangements  between  the  lender  and  borrower,  these  instruments
generally will not be traded,  and there  generally is no secondary  market for
these notes,  although they are redeemable  (and  immediately  repayable by the
borrower) at face value, plus accrued interest, at any time. We will invest the
Fund's  assets in master  demand  notes only if the Board of  Directors  or its
delegate has determined that they are of credit quality  comparable to the debt
securities in which the Fund generally may invest.

ILLIQUID SECURITIES
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
                                      21
<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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      22
<PAGE>
   
                                     NOTES

<PAGE>

If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.


                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                               Money Market Fund

                               is included herein
    
<PAGE>
                             USAA MONEY MARKET FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                     TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy? ..  2
Main Risks of Investing in This Fund ........................  2
Is This Fund for You? .......................................  3
Could the Value of Your Investment in This Fund Fluctuate? ..  3
Fees and Expenses ...........................................  5
Fund Investments ............................................  6
Fund Management .............................................  8
Using Mutual Funds in an Investment Program .................  9
How to Invest ............................................... 10
Important Information About Purchases and Redemptions ....... 14
Exchanges ................................................... 15
Shareholder Information ..................................... 15
Financial Highlights ........................................ 18
Appendix A .................................................. 19
Appendix B .................................................. 22
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The  Fund's  investment   objective  is  the  highest  income  consistent  with
preservation  of capital and the  maintenance of liquidity.  We will attempt to
achieve the Fund's  objective by investing the Fund's  assets in  high-quality,
U.S. dollar-denominated short-term debt instruments that present minimal credit
risk and comply with strict Securities and Exchange Commission (SEC) guidelines
applicable to money market funds.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 6 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary  risks of investing in this Fund are interest  rate risk and credit
risk.

*   INTEREST  RATE RISK involves the  possibility  that the value of the Fund's
    investments will decline because of an increase in interest rates.

    IF INTEREST  RATES  INCREASE:  the yield of the Fund may  increase  and the
    market  value of the  Fund's  securities  will  likely  decline,  adversely
    affecting the net asset value and total return.

    IF INTEREST  RATES  DECREASE:  the yield of the Fund may  decrease  and the
    market  value of the Fund's  securities  may  increase,  which would likely
    increase the Fund's net asset value and total return.

*   Credit risk  involves the  possibility  that a borrower  cannot make timely
    interest and principal payments on its securities.

Money market funds are  sometimes  confused  with savings  accounts.  A savings
account is a deposit  with a bank.  The bank is  obligated to return the amount
deposited  and to pay you interest  for the use of your money.  Up to a certain
amount,  the Federal Deposit Insurance  Corporation (FDIC) will insure that the
bank meets its obligations.

                                       2
<PAGE>

The Fund is not a savings  account but,  rather,  is a money market mutual fund
that  issues and  redeems  its  shares at the Fund's per share net asset  value
(NAV). The Fund always seeks to maintain a constant NAV of $1 per share.

Just as a savings account pays interest on the amount deposited,  the Fund pays
dividends on the shares you own. If these dividends are reinvested in the Fund,
the value of your account will grow over time.

Unlike a savings account,  however, an investment in this Fund is not a deposit
of USAA  Federal  Savings  Bank,  or any  other  bank,  and is not  insured  or
guaranteed by the FDIC or any other government agency.  Although the Fund seeks
to preserve  the value of your  investment  at $1 per share,  it is possible to
lose money by investing in the Fund.
    
IS THIS FUND FOR YOU?

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

*   You need your money back within a short period.
*   You need to preserve principal.
*   You want a low-risk investment.
*   You would like checkwriting privileges on the account.

This Fund MAY NOT be appropriate as part of your investment portfolio if . . .

*   You need a high total return to achieve your goals.
*   You need an investment that provides tax-free income.
   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes,  it could.  We manage the Fund with  strict  SEC  guidelines  designed  to
preserve  the Fund's  value at $1 per  share,  although,  of course,  we cannot
guarantee  that the  value  will  remain  at $1 per  share.  The  value of your
investment  typically  will grow through  reinvested  dividends.  The bar chart
shown on the next page  illustrates the Fund's  volatility and performance from
year to year over the past ten years.

                                       3
<PAGE>

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                 DISTRIBUTIONS.

[BAR CHART]
    CALENDAR         TOTAL
      YEAR           RETURN

      1988           7.25%
      1989           8.93%
      1990           7.97%
      1991           6.07%
      1992           3.80%
      1993           3.01%
      1994           4.05%
      1995           5.80%
      1996           5.24%
      1997           5.40%

      THE FUND'S  TOTAL RETURN FOR THE  NINE-MONTH  PERIOD ENDED  SEPTEMBER 30,
      1998, WAS _____%.

During the  periods  shown in the bar chart,  the  highest  total  return for a
quarter was 2.31%  (quarter  ending June 30,  1989) and the lowest total return
for a quarter was .73% (quarter ending December 31, 1993).

YIELD

                                 YIELD IS THE
                                ANNUALIZED NET
                                 INCOME OF THE
                                 FUND DURING A
                               SPECIFIED PERIOD
                                AS A PERCENTAGE
                                 OF THE FUND'S
                                 SHARE PRICE.

                                EFFECTIVE YIELD
                                 IS CALCULATED
                                  SIMILAR TO
                                  THE YIELD,
                                 HOWEVER, WHEN
                                  ANNUALIZED,
                                  THE INCOME
                                   EARNED IS
                                 ASSUMED TO BE
                                  REINVESTED.

All mutual funds must use the same  formulas to calculate  yield and  effective
yield. The Fund typically advertises  performance in terms of a 7-day yield and
effective yield and may advertise total return.  The 7-day yield quotation more
closely reflects current earnings of the Fund than the total return  quotation.
The  effective  yield will be  slightly  higher  than the yield  because of the
compounding  effect of the assumed  reinvestment.  Current yields and effective
yields  fluctuate  daily and will vary with factors such as interest  rates and
the quality,  length of  maturities,  and type of investments in the portfolio.
The Fund's 7-day yield for the period ended December 31, 1997, was 5.55%.

You may  obtain  the most  current  yield  information  for the Fund by calling
1-800-531-8777.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 4 2 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Remember, historical performance does not necessarily indicate what will happen
in the future. The value of your shares may go up or down. For the most current
price, yield, and return information for this Fund, you

                                       4
<PAGE>

may call  TouchLINE(R)  at  1-800-531-8777.  Press 1 for the Mutual  Fund Menu,
press 1 again for prices,  yields, and returns.  Then, press 42# when asked for
the Fund Code.

                                     TICKER
                                     SYMBOL
                                     USAXX

If you prefer to obtain this information from an on-line computer service,  you
can do so by using the ticker symbol "USAXX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual  expenses before waivers
during the past  fiscal  year  ended July 31,  1998,  and are  calculated  as a
percentage of average net assets (ANA).

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

          Management Fees                       .24%
          Distribution (12b-1) Fees             None
          Other Expenses                        .24%
                                                ----
          Total Annual Fund Operating Expenses* .48%
                                                ====
- --------------

  *  During the year, we  voluntarily  limited the Total Annual Fund  Operating
     Expenses to .45% as follows:

              Total Annual Fund Operating Expenses     .48%
              Reimbursement from USAA Investment
                Management Company                    (.03%)
                                                       ----
              Actual Fund Operating Expenses
                After Reimbursement                    .45%
                                                       ====

     We have voluntarily  agreed to limit the Fund's annual expenses to .45% of
     its ANA and will  reimburse  the Fund for all  expenses  in excess of that
     amount until December 1, 1999.
    
                                       5
<PAGE>

Example of Effect of the Fund's Operating Expenses
   
This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
(before any applicable  reimbursement)  remain the same, and (3) you redeem all
of your shares at the end of the periods shown.

                     1 year ............. $ 49
                     3 years ............. 154
                     5 years ............. 269
                    10 years ............. 604
    
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

  Q  What is the Fund's principal investment strategy?

  A  The Fund's principal investment strategy is to invest the Fund's assets in
     high-quality,  U.S.  dollar-denominated  debt  securities  of domestic and
     foreign issuers which have been determined to present minimal credit risk.

  Q  What types of money market  instruments will the Fund's assets be invested
     in?

  A  The Fund's portfolio may include the following:

     * obligations of the U.S. Government,  its agents, and  instrumentalities,
       and repurchase agreements collateralized by such obligations;
     * short-term   corporate  debt  obligations  such  as  notes,  bonds,  and
       commercial paper;
     * U.S.  bank  or  foreign  bank  obligations,  including  certificates  of
       deposit, banker's acceptances, and time deposits;
     * obligations  of state  and local  governments  and  their  agencies  and
       instrumentalities;
     * municipal lease obligations;
     * mortgage-backed securities;
     * asset-backed securities;
     * master demand notes;
     * Eurodollar obligations;

                                       6
<PAGE>

     * Yankee obligations; and
     * other short-term debt securities.

     Further description of these securities is found in APPENDIX A on page 19.
    
  Q  Are there any limits on how much we can invest in one issuer?
   
  A  Yes. The SEC has set certain diversification requirements for money market
     funds.   Generally,   these  requirements  limit  a  money  market  fund's
     investments  in  securities of any issuer to no more than 5% of the fund's
     assets.  Also,  strict SEC  guidelines  do not  permit us to invest,  with
     respect to 75% of the Fund's assets, greater than 10% of the Fund's assets
     in securities  issued by or subject to guarantees by the same institution.
     Purchases of securities issued or guaranteed by the U.S. Government or its
     agencies or instrumentalities are not counted toward these limitations.

  Q  What is the credit quality of the Fund's investments?

  A  The Fund's investments consist of high-quality  securities that qualify as
     "first-tier"  securities  under the SEC rules that  apply to money  market
     funds. In general, a first-tier security is defined as a security that is:

     * issued  or  guaranteed   by  the  U.S.   Government  or  any  agency  or
       instrumentality thereof;
     * rated or subject to a guarantee  that is rated in the  highest  category
       for  short-term   securities  by  at  least  two  Nationally  Recognized
       Statistical  Rating  Organizations  (NRSROs),  or by  one  NRSRO  if the
       security is rated by only one NRSRO;
     * unrated but issued by an issuer or  guaranteed  by a guarantor  that has
       other comparable short-term obligations so rated; or
     * unrated but determined by us to be of comparable quality.

     In addition,  we must consider  whether a particular  investment  presents
     minimal credit risk.
    
  Q  Who are the Nationally Recognized Statistical Rating Organizations?

  A  Current NRSROs include:
   
     * Moody's Investors Service, Inc.;
     * Standard & Poor's Ratings Group;
     * Fitch IBCA, Inc.;
     * Duff & Phelps Inc.; and
     * Thompson BankWatch, Inc.
    
                                       7
<PAGE>

  Q  What happens if the rating of a security is downgraded?

  A  If the  rating  of a  security  is  downgraded  after  purchase,  we  will
     determine whether it is in the best interest of the Fund's shareholders to
     continue to hold the security in the Fund's portfolio.

  Q  Will the Fund always maintain a net asset value of $1 per share?

  A  While we will  endeavor to maintain a constant  Fund net asset value of $1
     per share,  there is no assurance that we will be able to do so. Remember,
     the shares are neither insured nor guaranteed by the U.S.  Government.  As
     such, the Fund carries some risk.
   
     For example,  there is always a risk that the issuer of a security held by
     the Fund will fail to pay  interest or  principal  when due. We attempt to
     minimize  this credit risk by investing  only in  securities  rated in the
     highest  category  for  short-term  securities,   or,  if  not  rated,  of
     comparable  quality,  at the time of purchase.  Additionally,  we will not
     purchase a security  unless our analysts have determined that the security
     presents minimal credit risk.
                                    
     There is also a risk that  rising  interest  rates will cause the value of
     the Fund's  securities  to decline.  We attempt to minimize  this interest
     rate risk by limiting  the  maturity of each  security to 397 days or less
     and maintaining a dollar-weighted  average portfolio maturity for the Fund
     of 90 days or less.

                                    DOLLAR-
                                   WEIGHTED
                                    AVERAGE
                                   PORTFOLIO
                                  MATURITY IS
                                  OBTAINED BY
                                  MULTIPLYING
                                  THE DOLLAR
                                 VALUE OF EACH
                                  INVESTMENT
                                 BY THE NUMBER
                                OF DAYS LEFT TO
                                 ITS MATURITY,
                                  THEN ADDING
                                 THOSE FIGURES
                                 TOGETHER AND
                                 DIVIDING THE
                                 TOTAL BY THE
                                 DOLLAR VALUE
                                 OF THE FUND'S
                                  PORTFOLIO.

  Q  How are the decisions to buy and sell securities made?

  A  We balance  factors  such as credit  quality and  maturity to purchase the
     best relative value available in the market at any given time. While rare,
     sell decisions are usually based on a change in our credit  analysis or to
     take advantage of an opportunity to reinvest at a higher yield.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 19.

FUND MANAGEMENT

The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

                                       8
<PAGE>

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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 is computed at  twenty-four  one  hundredths of one percent
(.24%) of average  net assets.  The fee we  received  for the fiscal year ended
July 31, 1998, after  reimbursements  we made to the Fund, was equal to .21% of
average  net assets.  We also  provide  services  related to selling the Fund's
shares and receive no compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

Portfolio Manager
   
[PHOTOGRAPH OF PORTFOLIO MANAGER]
PAMELA K. BLEDSOE
Pamela K. Bledsoe,  Assistant Vice President of Money Market Funds, has managed
the Fund  since May 1996.  Ms.  Bledsoe  has ten  years  investment  management
experience  and has worked  for us for seven  years.  She earned the  Chartered
Financial  Analyst  designation in 1992 and is a member of the  Association for
Investment  Management  and  Research  and the San Antonio  Financial  Analysts
Society,  Inc. She holds an MBA from Texas  Christian  University and a BS from
Louisiana Tech University.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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

                                       9
<PAGE>

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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example, assume you wish to invest in a widely-diversified  portfolio.  You
could combine an investment in the Money Market Fund with  investments in other
mutual  funds  that  invest  in  stocks  of  large  and  small   companies  and
high-dividend  stocks. This is just one way you could combine funds to fit your
own risk and reward goals.
    
III. USAA's Family of Funds
   
We offer you  another  alternative  with our  asset  strategy  funds  listed in
APPENDIX B under asset allocation on page 22. These unique mutual funds provide
a  professionally-managed,  diversified  investment  portfolio  within a mutual
fund.  Designed for the individual who prefers to delegate the asset allocation
process to an investment  manager,  their  structure  achieves  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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 22 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
TAX ID NUMBER

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

                                      10
<PAGE>

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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    
MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY  GRAPHIC]
*   $3,000.  [$500 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts
    and $250 for IRAs] or no initial  investment  if you elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES
   
*   $50 (Except  transfers from brokerage  accounts,  which are exempt from the
    minimum).
    
HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
*   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

                                      11
<PAGE>

IN PERSON
   
[HANDSHAKE GRAPHIC]
*   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288
    
BANK WIRE
   
[WIRE GRAPHIC]
*   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Money Market Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)_______________________________________
       Shareholder(s) Mutual Fund Account Number____________________
    
ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
*   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448
   
[TELEPHONE GRAPHIC]
*   If you have an existing  USAA mutual fund  account and would like to open a
    new account or exchange to another  USAA Fund,  call for  instructions.  To
    open an account by phone,  the new account must have the same  registration
    as your existing account.
    
Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
                                      12
<PAGE>

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

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
*   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
*   Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
CHECKWRITING

[CHECKBOOK GRAPHIC]
*   Return a signed signature card,  which  accompanies  your  application,  or
    request a signature card separately and return to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

You will not be charged for the use of checks or any subsequent reorders.  Your
checkwriting  privilege  is subject to State  Street  Bank and Trust  Company's
rules and regulations governing checking accounts.  You may write checks in the
amount of $250 or more.  Checks  written  for less  than $250 will be  returned
unpaid.  Because the value of your account  changes daily as dividends  accrue,
you may not write a check to close your account.

                                      13
<PAGE>

IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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);  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  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;
    
                                      14
<PAGE>

*   redeem an account with less than 500 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 13.
    
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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                    EQUALS
                                 TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                  DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.
Securities are stated at amortized cost, which approximates market value.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
                                      15
<PAGE>

Dividends and Distributions

Net investment income is accrued daily and paid on the last business day of the
month.  Daily  dividends  are  declared  at the  time  the  NAV  per  share  is
calculated.  Dividends  shall  begin  accruing  on  shares  purchased  the  day
following the effective date and shall continue to accrue to the effective date
of redemption.  When you choose to receive cash dividends monthly, we will send
you those funds that have accrued during the month after the payment date.

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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you as ordinary  income,  whether
received in cash or reinvested in additional shares.

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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

                                      16
<PAGE>
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      17
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance  for the  past  five-year  period.  Certain  information
reflects  financial  results for a single Fund share.  The total returns in the
table  represent  the rate that an  investor  would have earned (or lost) on an
investment   in  the  Fund   (assuming   reinvestment   of  all  dividends  and
distributions).  This  information  has been  audited by KPMG Peat Marwick LLP,
whose report, along with the Fund's financial  statements,  are included in the
Annual Report, which is available upon request.

<TABLE>
<CAPTION>
                                                                         Ten-Month
                                                                       Period Ended
                                       Year Ended July 31,                July 31,
                         -------------------------------------------------------------
                            1998        1997        1996        1995        1994
                         -------------------------------------------------------------
<S>                      <C>         <C>         <C>         <C>         <C>
Net asset value at
  beginning of period    $     1.00  $     1.00  $     1.00  $     1.00  $     1.00
Net investment income           .05         .05         .05         .05         .03
Distributions from net
  investment income            (.05)       (.05)       (.05)       (.05)       (.03)
                         -------------------------------------------------------------
Net asset value at
  end of period          $     1.00  $     1.00  $     1.00  $     1.00  $     1.00
                         =============================================================
Total return (%)*              5.45        5.28        5.41        5.49        2.74

Net assets at end of
  period (000)           $2,491,473  $2,161,691  $1,828,749  $1,540,055  $1,006,020

Ratio of expenses to
  average net assets (%)        .45         .45         .45         .45         .46(a)

Ratio of expenses
  to average net
  assets excluding
  reimbursements (%)            .48         .49         .51         .46         -

Ratio of net investment
  income to average net
  assets (%)                   5.32        5.16        5.27        5.44        3.28(a)
</TABLE>

- --------------
  *  Assumes  reinvestment  of all  dividend  income  distributions  during the
     period.
(a)  Annualized.  The  ratio is not  necessarily  indicative  of 12  months  of
     operations.
    
                                      18
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

PUT BONDS
   
We may  invest the  Fund's  assets in  securities  (including  securities  with
variable interest rates) which may be redeemed or sold back (put) to the issuer
of the security or a third party prior to stated  maturity  (put  bonds).  Such
securities  will  normally  trade as if maturity is the earlier put date,  even
though stated maturity is longer.
    
VARIABLE RATE SECURITIES
   
We may invest the Fund's assets in securities that bear interest at rates which
are adjusted periodically to market rates.
    
*   These  interest  rate  adjustments  can both  raise and  lower  the  income
    generated by such  securities.  These  changes will have the same effect on
    the  income  earned  by the  Fund  depending  on  the  proportion  of  such
    securities held.

*   The value of variable rate  securities  is less affected than  fixed-coupon
    securities by changes in prevailing  interest rates because of the periodic
    adjustment  of their  coupons  to a market  rate.  The  shorter  the period
    between  adjustments,  the smaller the impact of interest rate fluctuations
    on the value of these securities.

*   The market value of a variable rate security usually tends toward par (100%
    of face value) at interest rate adjustment time.

WHEN-ISSUED SECURITIES
   
We may invest the Fund's assets in new issues of debt  securities  offered on a
when-issued basis.
    
*   Delivery  and  payment  take  place  after  the date of the  commitment  to
    purchase,  normally  within 45 days. Both price and interest rate are fixed
    at the time of commitment.

*   The Fund does not earn interest on the securities until settlement, and the
    market  value  of  the  securities  may  fluctuate   between  purchase  and
    settlement.

*   Such securities can be sold before settlement date.

REPURCHASE AGREEMENTS
   
We  may  invest  the  Fund's   assets  in  repurchase   agreements   which  are
collateralized  by  obligations  issued or guaranteed as to both  principal and
interest  by the  U.S.  Government,  its  agencies,  and  instrumentalities.  A
repurchase  agreement is a transaction  in which a security is purchased with a
simultaneous  commitment  to sell it back to the seller (a  commercial  bank or
recognized  securities  dealer) at an agreed upon price on an agreed upon date.
This date is usually  not more than seven days from the date of  purchase.  The
resale price  reflects  the  purchase  price plus an agreed upon market rate of
interest,  which is unrelated  to the coupon rate or maturity of the  purchased
security.
    
                                      19
<PAGE>

MUNICIPAL LEASE OBLIGATIONS
   
We may invest the Fund's assets in a variety of instruments  commonly  referred
to as municipal lease obligations, including:
    
*   Leases,
*   Installment purchase contracts, and
*   Certificates of participation in such leases and contracts.

EURODOLLAR AND YANKEE OBLIGATIONS

We may invest a portion of the Fund's assets in dollar-denominated  instruments
that have been issued outside the U.S. capital markets by foreign  corporations
and financial  institutions  and by foreign  branches of U.S.  corporations and
financial institutions  (Eurodollar) as well as dollar-denominated  instruments
that have been issued by foreign issuers in the U.S. capital markets  (Yankee).
In addition,  we may invest a portion of the Fund's  assets in  Eurodollar  and
Yankee obligations of investment-grade emerging market countries.

MORTGAGE-BACKED AND ASSET-BACKED SECURITIES

We may invest the Fund's assets in mortgage-backed and asset-backed securities.
Mortgage-backed  securities include,  but are not limited to, securities issued
by the  Government  National  Mortgage  Association  (Ginnie Mae),  the Federal
National Mortgage  Association  (Fannie Mae) and the Federal Home Loan Mortgage
Corporation  (Freddie Mac). These securities  represent  ownership in a pool of
mortgage loans. They differ from  conventional  bonds in that principal is paid
back to the  investor as payments are made on the  underlying  mortgages in the
pool.  Accordingly,  the Fund receives monthly scheduled  payments of principal
and interest along with any unscheduled principal prepayments on the underlying
mortgages.  Because these scheduled and unscheduled  principal payments must be
reinvested  at prevailing  interest  rates,  mortgage-backed  securities do not
provide  an  effective  means of locking in  long-term  interest  rates for the
investor.  Like other fixed income  securities,  when interest  rates rise, the
value of a  mortgage-backed  security  generally  will decline;  however,  when
interest  rates are declining,  the value of  mortgage-backed  securities  with
prepayment features may not increase as much as other fixed income securities.

Asset-backed  securities  represent a  participation  in, or are secured by and
payable  from, a stream of payments  generated by  particular  assets,  such as
credit card,  motor vehicle,  or trade  receivables.  They may be  pass-through
certificates,  which  have  characteristics  very  similar  to  mortgage-backed
securities,  discussed  above.  They may  also be in the  form of  asset-backed
commercial paper, which is issued by a special purpose entity, organized solely
to issue the  commercial  paper and to purchase  interests  in the assets.  The
credit quality of these  securities  depends  primarily upon the quality of the
underlying assets and the level of credit support and enhancement provided.

                                      20
<PAGE>

MASTER DEMAND NOTES

We may invest the Fund's assets in master demand notes,  which are  obligations
that permit the investment of fluctuating amounts by the Fund, at varying rates
of interest  using direct  arrangements  between the Fund,  as lender,  and the
borrower.  These notes permit daily changes in the amounts  borrowed.  The Fund
has the right to increase  the amount under the note at any time up to the full
amount  provided  by the note  agreement,  or to decrease  the amount,  and the
borrower  may  repay  up to the  full  amount  of  the  note  without  penalty.
Frequently,  such  obligations are secured by letters of credit or other credit
support arrangements  provided by banks. Because master demand notes are direct
lending  arrangements  between  the  lender  and  borrower,  these  instruments
generally will not be traded,  and there  generally is no secondary  market for
these notes,  although they are redeemable  (and  immediately  repayable by the
borrower) at face value, plus accrued interest, at any time. We will invest the
Fund's  assets in master  demand  notes only if the Board of  Directors  or its
delegate has determined that they are of credit quality  comparable to the debt
securities in which the Fund generally may invest.

ILLIQUID SECURITIES
   
We may  invest  up to 10% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
                                      21
<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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      22
<PAGE>

                                     NOTES
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.
 
                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                           Science & Technology Fund

                               is included herein
    
<PAGE>
                                 USAA SCIENCE &
                                TECHNOLOGY FUND

                                   PROSPECTUS
   
                                DECEMBER 1, 1998

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                    TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy? ..  2
Main Risks of Investing in This Fund ........................  2
Is This Fund for You? .......................................  3
Could the Value of Your Investment in This Fund Fluctuate? ..  3
Fees and Expenses ...........................................  4
Fund Investments ............................................  5
Fund Management .............................................  7
Using Mutual Funds in an Investment Program .................  8
How to Invest................................................  9
Important Information About Purchases and Redemptions ....... 12
Exchanges.................................................... 13
Shareholder Information...................................... 14
Financial Highlights......................................... 17
Appendix A .................................................. 18
Appendix B .................................................. 19
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.

WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?

The Fund's  investment  objective is long-term  capital  appreciation.  We will
attempt to achieve  the Fund's  objective  by  investing  the Fund's  assets in
equity securities of companies expected to benefit from the development and use
of scientific and technological advances and improvements.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary risks of investing in this Fund are market risk and industry risk.

*   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities will decline because of falls in the stock market,  reducing the
    value of individual company's stocks,  regardless of the success or failure
    of an individual company's operations.

*   INDUSTRY  RISK  involves the  possibility  that the Fund's  investments  in
    companies whose value is highly  dependent on scientific and  technological
    developments  may be more  volatile  because of the short  life  cycles and
    competitive  pressures  of  many  of the  products  or  services  of  these
    companies.

An additional risk of the Fund described later in the Prospectus is the risk of
foreign  investing.  As with other mutual funds,  losing money is an additional
risk associated with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An  investment  in this Fund is not a deposit of USAA Federal  Savings Bank, or
any other  bank,  and is not  insured  or  guaranteed  by the  Federal  Deposit
Insurance Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.
    
                                       2
<PAGE>

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 steady income.
*   You are unwilling to take greater risk for long-term goals.
*   You are unable or reluctant to invest for a period of seven years or more.
*   You need an investment that provides tax-free income.
   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or decrease  with the  changing  market of the Fund's  portfolio.  The
Fund's  portfolio  consists of  companies  whose value is highly  dependent  on
scientific and technological developments. Many of the products and services of
these  companies  are subject to short life cycles and  competitive  pressures.
Therefore,  the market value of the Fund's  portfolio  and the Fund's price per
share are likely to  fluctuate  significantly.  The table  below  shows how the
Fund's  cumulative  total  return  since  inception   compared  to  that  of  a
broad-based securities market index. Remember,  historical performance does not
necessarily indicate what will happen in the future.

TOTAL RETURN
    
All mutual funds must use the same formula to calculate total return.

                                  TOTAL RETURN
                                  MEASURES THE
                                  PRICE CHANGE
                                   IN A SHARE
                                  ASSUMING THE
                                  REINVESTMENT
                                OF ALL DIVIDEND
                                   INCOME AND
                                  CAPITAL GAIN
                                 DISTRIBUTIONS.

===================================================================
  Cumulative Total Returns                       
  (for the period ending                    Since Fund's Inception
  December 31, 1997)                           on August 1, 1997
===================================================================
  Science & Technology Fund                         (9.30%)
- -------------------------------------------------------------------
  S&P 500 Index*                                     2.43%
===================================================================
*   THE  S&P  500  INDEX  IS  A  BROAD-BASED  COMPOSITE  UNMANAGED  INDEX  THAT
    REPRESENTS  THE  AVERAGE   PERFORMANCE  OF  A  GROUP  OF  500  WIDELY-HELD,
    PUBLICLY-TRADED STOCKS.

                                       3
<PAGE>
   
Since the Fund's  inception,  the highest total return for a quarter was 17.50%
(quarter  ending  March 31, 1998) and the lowest total return for a quarter was
- -7.45%  (quarter  ending  December 31,  1997).  The Fund's total return for the
nine-month period ended September 30, 1998, was ____%.

                              [TELEPHONE GRAPHIC]
                                 TOUCHLINE (R)
                                 1-800-531-8777
                                     PRESS
                                       1
                                      THEN
                                       1
                                   THEN 3 1 #

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  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# when asked for the Fund Code.

                                   NEWSPAPER
                                     SYMBOL
                                    SciTech

                                     TICKER
                                     SYMBOL
                                     USSCX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "SciTech." If you prefer to obtain this information from an on-line
computer service, you can do so by using the ticker symbol "USSCX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended July 31, 1998,  and are calculated as a percentage of average
net assets.

                                  12B-1 FEES -
                                  SOME MUTUAL
                                  FUNDS CHARGE
                                   THESE FEES
                                   TO PAY FOR
                                  ADVERTISING
                                   AND OTHER
                                COSTS OF SELLING
                                  FUND SHARES.

         Management Fees                              .75%
         Distribution (12b-1) Fees                    None
         Other Expenses                               .67%
                                                     -----
         Total Annual Fund Operating Expenses        1.42%
                                                     =====

                                       4
<PAGE>

Example of Effect of Fund's Operating Expenses

This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                   1 year........... $  145
                   3 years..........    449
                   5 years..........    776
                  10 years..........  1,702
    
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

  Q  What is the Fund's principal investment strategy?

  A  The Fund's principal  investment strategy is to invest at least 80% of the
     Fund's net assets in equity  securities  of companies  that we expect will
     benefit  from the  development  and use of  scientific  and  technological
     advances and improvements.  We use the term "equity securities" to include
     common  stocks,  preferred  stocks,  securities  convertible  into  common
     stocks, and securities which carry the right to buy common stocks.

     As a temporary defensive measure because of market,  economic,  political,
     or other  conditions,  we may  invest up to 100% of the  Fund's  assets in
     investment-grade,  short-term  debt  instruments,  which may result in the
     Fund not achieving its investment  objective during the time it is in this
     temporary defensive posture.
    
     We generally will not trade the Fund's assets in securities for short-term
     profits;  however,  if  circumstances  warrant,  we may  purchase and sell
     securities without regard to the length of time held. The Fund's portfolio
     turnover rate will vary from year to year depending on market  conditions,
     and is not  expected  to  exceed  150%.  A high  turnover  rate  increases
     transaction  costs and may increase taxable capital gains;  therefore,  we
     will carefully weigh the anticipated benefits of trading.

                                       5
<PAGE>
   
[CAUTION LIGHT}
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

  Q  May the Fund's assets be invested in foreign securities?

  A  Yes. While most of the Fund's assets will be invested in U.S.  securities,
     we may also invest the Fund's  assets in foreign  securities  purchased in
     either  foreign  or U.S.  markets  when they are in line  with the  Fund's
     investment objective.

[CAUTION LIGHT}
FOREIGN  INVESTING.   Investing  in  foreign  securities,   including  American
Depositary Receipts (ADRs) and Global Depositary Receipts (GDRs),  poses unique
risks:  currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
increased price  volatility;  exchange control  regulations;  foreign ownership
limits; different accounting, reporting, and disclosure requirements; political
instability; and difficulties in obtaining legal 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.

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN
                                 SHARES HELD BY
                                   A U.S. OR
                                 FOREIGN BANK
                                 WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

    
  Q  In what industries will the Fund's assets be invested?
   
  A  We will  invest at least 80% of the Fund's net assets 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,  aerospace  and  defense,  and  other
     industries we believe may benefit directly or indirectly from research and
     development in the science and technology fields. We may invest the Fund's
     remaining assets in any other industry.

[CAUTION LIGHT}
INDUSTRY RISK. A mutual fund portfolio consisting of investments related to the
fields of science and technology is likely to be more volatile than a portfolio
that is more  widely  diversified  in other  economic  sectors.  Because of the
competitiveness and rapid changes in the fields of science and technology, many
of the companies 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.  Additionally, many of these companies must comply
with significant governmental regulations and may need governmental approval of
their products and services.

                                       6
<PAGE>

  Q  How are the decisions to buy or sell securities made?

  A  We generally invest in companies producing sales and earnings growth rates
     greater  than  those  of the  overall  market.  Investment  considerations
     include a company's ability to exceed earnings  expectations over the near
     or long term,  valuation,  cash flow,  acquisitions,  and other  corporate
     actions. We employ a bottoms-up, stock-picking strategy, focusing on these
     factors.  We monitor our positions  continually and will sell a stock when
     we perceive our original investment thesis to no longer hold.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 18.
    
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average net assets for the fiscal year ended July 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

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.

                                       7
<PAGE>

Portfolio Manager
   
[PHOTOGRAPH OF PORTFOLIO MANAGER]
CURT ROHRMAN
Curt Rohrman,  Assistant Vice President of Equity Investments,  has managed the
Fund since August 1997. He has ten years investment  management  experience and
has worked for us for three 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  designation  in  1991  and  is a  member  of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial  Analysts Society,  Inc. He holds an MBA from the University of Texas
at Austin and a BBA from Texas Christian University.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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 involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example,  assume you wish to invest in a  widely-diversified,  common stock
portfolio.  You could combine an  investment  in the Science & Technology  Fund
with investments in other mutual funds that invest in value-oriented

                                       8
<PAGE>

stocks and high-dividend  stocks.  This is just one way you could combine funds
to fit your own risk and reward goals.
    
III. USAA's Family of Funds
   
We offer you  another  alternative  with our  asset  strategy  funds  listed in
APPENDIX B under asset allocation on page 19. These unique mutual funds provide
a  professionally-managed,  diversified  investment  portfolio  within a mutual
fund.  Designed for the individual who prefers to delegate the asset allocation
process to an investment  manager,  their  structure  achieves  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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 19 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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. This will avoid a

                                       9
<PAGE>

potential  delay in the  effective  date 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.
    
MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY  GRAPHIC]
*   $3,000 [$500 Uniform Gifts/Transfers to Minors Act (UGMA/UTMA) accounts and
    $250 for  IRAs]  or no  initial  investment  if you  elect to have  monthly
    electronic  investments  of at least $50 each.  We may  periodically  offer
    programs   that   reduce  the  minimum   amounts  for  monthly   electronic
    investments.  Employees of USAA and its  affiliated  companies  may open an
    account through payroll  deduction for as little as $25 per pay period with
    no initial investment.

ADDITIONAL PURCHASES

*   $50

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
*   To open an account, send your application and check to:
       USAA Investment Management Company
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   To add to your account,  send your check and the "Invest by Mail" stub that
    accompanies your Fund's transaction confirmation to the Transfer Agent:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288

IN PERSON
   
[HANDSHAKE GRAPHIC]
*   To open an account, bring your application and check to:
       USAA Investment Management Company
       USAA Federal Savings Bank
       10750 Robert F. McDermott Freeway
       San Antonio, TX 78288

                                      10
<PAGE>

BANK WIRE

[WIRE GRAPHIC]
*   Instruct  your bank  (which may charge a fee for the  service)  to wire the
    specified amount to the Fund as follows:
       State Street Bank and Trust Company
       Boston, MA 02101
       ABA#011000028
       Attn: USAA Science & Technology Fund
       USAA Account Number: 69384998
       Shareholder(s) Name(s)_________________________________
       Shareholder(s) Mutual Fund Account Number _____________
    
ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
*   Additional  purchases  on a  regular  basis  can  be  deducted  from a bank
    account, paycheck,  income-producing  investment, or USAA money market fund
    account.  Sign up for  these  services  when  opening  an  account  or call
    1-800-531-8448 to add these services.

PHONE 1-800-531-8448
   
[TELEPHONE GRAPHIC]
*   If you have an existing  USAA mutual fund  account and would like to open a
    new account or exchange to another  USAA Fund,  call for  instructions.  To
    open an account by phone,  the new account must have the same  registration
    as your existing account.
    
Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
In  addition,  the  Company may elect to suspend  the  redemption  of shares or
postpone the date of payment in limited circumstances.

                                      11
<PAGE>

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
*   Send your written instructions to:
       USAA Shareholder Account Services
       9800 Fredericksburg Road
       San Antonio, TX 78288
*   Send a signed fax to 1-800-292-8177, or send a telegram to USAA Shareholder
    Account Services.
*   Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
IMPORTANT INFORMATION ABOUT

PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the INVESTOR'S GUIDE to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the INVESTOR'S  GUIDE,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.

Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 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

                                      12
<PAGE>

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);  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  transactions  or  changes  in account
    information in those  instances  where the  appropriateness  of a signature
    authorization  is in  question.  The  Statement of  Additional  Information
    contains information on acceptable guarantors;

*   redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.
    
The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 12.

                                      13
<PAGE>

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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                     EQUALS
                                  TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING

The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.

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  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  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. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Directors,  will use all relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot be
valued by these methods, and all other assets, are valued in good faith at

                                      14
<PAGE>

fair value using methods we have  determined  under the general  supervision of
the Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
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 payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.
   
We  will   automatically   reinvest  all  income  dividends  and  capital  gain
distributions  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 dividends or capital gain distributions paid by the Fund will reduce the
NAV per share by the amount of the dividend or  distribution.  These  dividends
and 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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
                                      15
<PAGE>

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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.
   
REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.

Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.

                                      16
<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance since inception.  Certain information reflects financial
results for a single Fund share.  The total return in the table  represents the
rate that an investor  would have earned (or lost) on an investment in the Fund
(assuming  reinvestment of all dividends and  distributions).  This information
has been audited by KPMG Peat Marwick LLP, whose report,  along with the Fund's
financial  statements,  are included in the Annual  Report,  which is available
upon request.

                       Year Ended
                        July 31,
                       ----------
                          1998*
                       ----------

Net asset value at
  beginning of period   $  10.00
Net investment loss         (.07)(a)
Net realized and
  unrealized gain           1.24
                        ---------
Net asset value at
  end of period         $  11.17
                        =========
Total return (%)           11.70

Net assets at end of
  period (000)          $111,318

Ratio of expenses to
  average net assets (%)    1.42

Ratio of net investment
  loss to average net
  assets (%)                (.69)

Portfolio turnover (%)     76.31
- --------------
  * Fund commenced operations August 1, 1997.
(a) Calculated using weighted average shares.
    
                                      17
<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:

CONVERTIBLE SECURITIES
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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 also depends on the price of the underlying common stock.
    
MONEY MARKET INSTRUMENTS
   
We may hold a  certain  portion  of the  Fund's  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,  certificates  of  deposit,
bankers'  acceptances,  and  other  financial  institution  obligations.  These
securities may carry fixed or variable interest rates.
    
ILLIQUID SECURITIES
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
FORWARD CURRENCY CONTRACTS

We may hold  securities  denominated in foreign  currencies.  As a result,  the
value of these  securities  will be  affected by changes in the  exchange  rate
between the dollar and the foreign  currencies.  In managing currency exposure,
the Fund may enter into forward currency contracts. A forward currency contract
is 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.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar price of that
security.

                                      18
<PAGE>

                                   APPENDIX B

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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      19
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>
   
                                     Part A

                               Prospectus for the

                            First Start Growth Fund

                               is included herein
    
<PAGE>
                                USAA FIRST START
                                  GROWTH FUND
                                   
                                   PROSPECTUS
   
                                DECEMBER 1, 1998

The USAA First Start Growth Fund is designed to stimulate interest in long-term
investing by young people.  It is part of USAA First Start, a money  management
plan for young people.

As with other mutual funds,  the  Securities  and Exchange  Commission  has not
approved  or  disapproved  of this Fund's  shares or  determined  whether  this
prospectus  is  accurate  or  complete.  Anyone  who  tells  you  otherwise  is
committing a crime.
    
                               TABLE OF CONTENTS
   
What is the Fund's Investment Objective and Main Strategy?.........   2
Main Risks of Investing in This Fund...............................   2
Is This Fund for You?..............................................   2
Could the Value of Your Investment in This Fund Fluctuate?.........   3
Fees and Expenses..................................................   4
Fund Investments...................................................   5
Fund Management....................................................   7
Using Mutual Funds in an Investment Program........................   8
How to Invest......................................................   9
Important Information About Purchases and Redemptions..............  12
Exchanges..........................................................  13
Shareholder Information............................................  14
Financial Highlights...............................................  17
Appendix A.........................................................  18
Appendix B.........................................................  19
    
<PAGE>
   
USAA Investment  Management Company manages this Fund. For easier reading, USAA
Investment  Management  Company will be referred to as "we" or "us"  throughout
the Prospectus.
    
WHAT IS THE FUND'S INVESTMENT OBJECTIVE AND MAIN STRATEGY?
   
The Fund's investment objective is long-term capital  appreciation.  We attempt
to achieve this  objective by investing in equity  securities of companies that
provide goods or services that we believe are familiar to young people.

In view of the risks inherent in all  investments  in  securities,  there is no
assurance that the Fund's  objective will be achieved.  See FUND INVESTMENTS on
page 5 for more information.

MAIN RISKS OF INVESTING IN THIS FUND

The primary risk of investing in this Fund is market risk.

*   MARKET RISK involves the possibility that the Fund's  investments in equity
    securities will decline because of falls in the stock market,  reducing the
    value of individual  company's stocks  regardless of the success or failure
    of an individual company's operations.

Another  risk of the  Fund  described  later in the  Prospectus  is the risk of
foreign  investing.  As with other mutual funds,  losing money is an additional
risk associated with investing in this Fund.

As you consider an investment  in this Fund,  you should also take into account
your tolerance for the daily  fluctuations of the financial markets and whether
you can afford to leave your money in the  investment  for long periods of time
to ride out down periods.

An investment in this Fund is not a deposit of USAA Federal Savings Bank, or any
other bank, and is not insured or guaranteed by the Federal  Deposit  Insurance
Corporation or any other government agency.

[CAUTION LIGHT]
Look for this symbol throughout the Prospectus. We use it to mark more detailed
information about the main risks you will face as a Fund shareholder.
    
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.

                                      2
<PAGE>

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 are unable or reluctant to invest for a period of five years or more.
* You need an investment that provides tax-free income.
   
COULD THE VALUE OF YOUR INVESTMENT IN THIS FUND FLUCTUATE?

Yes, it could.  In fact,  the value of your  investment in the Fund will likely
increase or decrease with the changing market of the Fund's portfolio.  You may
have a gain or loss when you sell your  shares.  The table  below shows how the
Fund's  cumulative  total  return  since  inception   compared  to  that  of  a
broad-based securities market index. Remember,  historical performance does not
necessarily indicate what will happen in the future.

TOTAL RETURN

All mutual funds must use the same formula to calculate total return.

                                 TOTAL RETURN
                                 MEASURES THE
                                 PRICE CHANGE
                                  IN A SHARE
                                 ASSUMING THE
                                 REINVESTMENT
                                OF ALL DIVIDEND
                                  INCOME AND
                                 CAPITAL GAIN
                                DISTRIBUTIONS.

===============================================================================
  Cumulative Total Returns
  (for the period ending                   Since Fund's Inception
  December 31, 1997)                          on August 1, 1997
===============================================================================
  First Start Growth Fund                          (.20%)
- -------------------------------------------------------------------------------
  S&P 500 Index*                                   2.43%
===============================================================================
*  THE S&P 500 INDEX IS A BROAD-BASED COMPOSITE UNMANAGED INDEX THAT REPRESENTS
   THE  AVERAGE  PERFORMANCE  OF A GROUP  OF 500  WIDELY-HELD,  PUBLICLY-TRADED
   STOCKS.

Since the Fund's  inception,  the highest total return for a quarter was 16.53%
(quarter  ending  March 31, 1998) and the lowest total return for a quarter was
 .50%  (quarter  ending  December  31,  1997).  The Fund's  total return for the
nine-month period ended September 30, 1998, was ____%.

Please  consider  performance  information  in light of the  Fund's  investment
objective and policies and market  conditions during the reported time periods.
Again,  you must  remember that  historical  performance  does not  necessarily
indicate what will happen in the future.  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# when asked for the Fund Code.
    
                              [TELEPHONE GRAPHIC]
                                 TouchLINE (R)
                                1-800-531-8777
                                     PRESS
                                       1
                                     THEN
                                       1
                                     THEN
                                     3 2 #

                                      3
<PAGE>
                               NEWSPAPER SYMBOL
                                     FStrtGr
   
                                 TICKER SYMBOL
                                     UFSGX

You can also find the most current price of your shares in the business section
of your newspaper in the mutual fund section under the heading "USAA Group" and
the symbol  "FStrtGr." If you prefer to obtain this information from an on-line
computer service, you can do so by using the ticker symbol "UFSGX."
    
FEES AND EXPENSES

This summary  shows what it will cost you directly or  indirectly  to invest in
the Fund.

Shareholder Transaction Expenses -- Fees You Pay Directly
   
There are no fees or sales loads  charged to your  account when you buy or sell
Fund  shares.  However,  if you sell  shares  and  request  your  money by wire
transfer,  there is a $10 fee.  (Your bank may also charge a fee for  receiving
wires.)
    
Annual Fund Operating Expenses -- Fees You Pay Indirectly
   
Fund  expenses  come out of the Fund's  assets and are  reflected in the Fund's
share price and dividends.  "Other Expenses" include expenses such as custodian
and transfer agent fees. The figures below show actual expenses during the past
fiscal year ended July 31, 1998,  and are calculated as a percentage of average
net assets.
    
                                12B-1 FEES -
                               SOME MUTUAL FUNDS
                               CHARGE THESE FEES
                                  TO PAY FOR
                                ADVERTISING AND
                                OTHER COSTS OF
                              SELLING FUND SHARES.
   
         Management Fees                              .75%
         Distribution (12b-1) Fees                    None
         Other Expenses                               .90%
                                                     -----
         Total Annual Fund Operating Expenses        1.65%
                                                     =====
    
Example of Effect of Fund's Operating Expenses
   
This  example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual  funds.  Although  your actual costs
may be higher or lower,  you  would  pay the  following  expenses  on a $10,000
investment,  assuming (1) 5% annual return,  (2) the Fund's operating  expenses
remain  the  same,  and (3) you  redeem  all of your  shares  at the end of the
periods shown.

                   1 year........... $  168
                   3 years..........    520
                   5 years..........    897
                  10 years..........  1,955
    

                                      4
<PAGE>
       
FUND INVESTMENTS
   
Principal Investment Strategies and Risks

   Q   What is the Fund's principal investment strategy?

   A   The Fund's principal  investment strategy is to invest the Fund's assets
       in equity securities of companies providing goods or services we believe
       are familiar to young  people.  We use the term "equity  securities"  to
       include common stocks,  preferred  stocks,  securities  convertible into
       common  stocks,  and  securities  which  carry the  right to buy  common
       stocks.
    
       We  designed  the Fund as part of a program  to  stimulate  interest  in
       long-term  investing by young people.  Shareholders of the Fund may give
       us their  suggestions about the types of companies 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  they  would  like us to
       feature in the Fund's communications to shareholders.
   
       As a temporary defensive measure because of market, economic, political,
       or other  conditions,  we may invest up to 100% of the Fund's  assets in
       investment-grade,  short-term debt instruments,  which may result in the
       Fund not achieving  its  investment  objective  during the time it is in
       this temporary defensive posture.

[CAUTION LIGHT]
MARKET RISK. Because this Fund invests in equity  securities,  it is subject to
stock  market  risk.  Stock  prices in general may  decline  over short or even
extended  periods,  regardless  of the  success  or  failure  of an  individual
company's  operations.  Stock markets tend to run in cycles,  with periods when
stock prices  generally go up, known as "bull" markets,  and periods when stock
prices generally go down, referred to as "bear" markets. Equity securities tend
to go up and down more than bonds.

                                 ADR - FOREIGN
                                 SHARES HELD BY
                                  A U.S. BANK
                                  WHICH ISSUES
                                   A RECEIPT
                                   EVIDENCING
                                   OWNERSHIP.
                                 DIVIDENDS ARE
                                  PAID IN U.S.
                                    DOLLARS.

                                 GDR - FOREIGN 
                                 SHARES HELD BY 
                                   A U.S. OR
                                  FOREIGN BANK
                                  WHICH ISSUES 
                                   A RECEIPT 
                                   EVIDENCING
                                   OWNERSHIP. 
                                 DIVIDENDS ARE 
                                  PAID IN U.S. 
                                    DOLLARS.
    
   Q   May the Fund's assets be invested in foreign securities?
   
   A   Yes.  While  most  of  the  Fund's  assets  will  be  invested  in  U.S.
       securities,  we may also invest the Fund's assets in foreign  securities
       purchased on either  foreign or U.S.  markets when they are in line with
       the Fund's investment objective.
    
                                       5
<PAGE>
   
[CAUTION LIGHT]  
FOREIGN  INVESTING.   Investing  in  foreign  securities,   including  American
Depositary Receipts (ADRs) and Global Depositary Receipts (GDRs),  poses unique
risks:  currency  exchange  rate  fluctuations;   foreign  market  illiquidity;
increased price  volatility;  exchange control  regulations;  foreign ownership
limits; different accounting, reporting, and disclosure requirements; political
instability; and difficulties in obtaining legal 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.
    
   Q   In what industries will the Fund's assets be invested?

   A   We will invest the Fund's assets 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   Are the Fund's  assets  prohibited  from being  invested in any specific
       industries?

   A   Yes. We will not invest the Fund's  assets in  companies  whose  primary
       line of  business is the  production  of tobacco  products or  alcoholic
       beverages.  Investments in firms primarily  focused on gaming activities
       are also prohibited.

   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.

                                      6
<PAGE>
   
   Q   How are the decisions to buy and sell securities made?

   A   We buy stocks of companies that provide goods or services we believe are
       familiar to young  people.  We generally  invest in companies  producing
       sales and  earnings  growth  rates  greater  than  those of the  overall
       market.  Investment considerations include a company's ability to exceed
       earnings expectations over the near or long term, valuation,  cash flow,
       acquisitions,  and other  corporate  actions.  We  employ a  bottoms-up,
       stock-picking  strategy,  focusing  on these  factors.  We  monitor  our
       positions  continually  and  will  sell a  stock  when we  perceive  our
       original investment thesis to no longer hold.

For additional  information  about other  securities in which we may invest the
Fund's assets, see APPENDIX A on page 18.
    
FUND MANAGEMENT
   
The Company has retained us, USAA Investment  Management  Company,  to serve as
the manager and  distributor  for 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 Road, San Antonio, TX 78288.

We provide management  services to the Fund pursuant to an Advisory  Agreement.
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.  This fee was  computed  and paid at  three-fourths  of one percent
(.75%) of average net assets for the fiscal year ended July 31,  1998.  We also
provide   services  related  to  selling  the  Fund's  shares  and  receive  no
compensation for those services.
    
Although  our  officers and  employees,  as well as those of the  Company,  may
engage  in  personal  securities  transactions,  they  are  restricted  by  the
procedures in a Joint Code of Ethics adopted by the Company and us.

                                       7
<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
   
[PHOTOGRAPH OF PORTFOLIO MANAGER]
CURT ROHRMAN
Curt Rohrman,  Assistant Vice President of Equity Investments,  has managed the
Fund since August 1997. He has ten years investment  management  experience and
has worked for us for three 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  designation  in  1991  and  is a  member  of the
Association  for  Investment  Management  and  Research  and  the  San  Antonio
Financial  Analysts Society,  Inc. He holds an MBA from the University of Texas
at Austin and a BBA from Texas Christian University.
    
USING MUTUAL FUNDS IN AN INVESTMENT PROGRAM

I. The Idea Behind Mutual Funds

Mutual funds provide small investors some of the advantages  enjoyed by wealthy
investors.  A  relatively  small  investment  can  buy  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.

                                       8
<PAGE>

You,  however,  retain  at  least  part of the  responsibility  for an  equally
important  decision.  This decision involves  determining a portfolio of mutual
funds that balances your  investment  goals with your tolerance for risk. It is
likely that this decision may include the use of more than one fund of the USAA
Family of Funds.
   
For example,  assume you wish to invest in a  widely-diversified,  common stock
portfolio.  You could combine an investment in the First Start Growth Fund with
investments in other mutual funds that invest in high-dividend  stocks. This is
just one way you could combine funds to fit your own risk and reward goals.
    
III. USAA's Family of Funds
   
We offer you  another  alternative  with our  asset  strategy  funds  listed in
APPENDIX B under asset allocation on page 19. These unique mutual funds provide
a  professionally-managed,  diversified  investment  portfolio  within a mutual
fund.  Designed for the individual who prefers to delegate the asset allocation
process to an investment  manager,  their  structure  achieves  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 assist you with your  choices  and to help you
craft a  portfolio  to meet your  needs.  Refer to  APPENDIX B on page 19 for a
complete list of the USAA Family of No-Load Mutual Funds.
    
HOW TO INVEST

Purchase of Shares

OPENING AN ACCOUNT
   
You may open an account and make an investment  as described  below by mail, in
person,  bank wire,  electronic  funds  transfer  (EFT),  or phone. A complete,
signed  application is required for each new account.  However,  after you open
your initial account with us, you will not need to fill out another application
unless the registration is different.
    
TAX ID NUMBER

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

                                       9
<PAGE>

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 the NYSE
is open.  If we receive  your  request  and  payment  prior to that time,  your
purchase price will be the NAV per share determined for that day. If we receive
your  request or payment  after 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.  This will  avoid a  potential  delay in the
effective date 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.
    
MINIMUM INVESTMENTS

INITIAL PURCHASE

[MONEY GRAPHIC]
* $3,000 [$250 Uniform  Gifts/Transfers to Minors Act (UGMA/UTMA)  accounts and
  $250  for  IRAs]  or no  initial  investment  if you  elect  to have  monthly
  electronic  investments  of at least  $20  each.  We may  periodically  offer
  programs that reduce the minimum amounts for monthly electronic  investments.
  Employees of USAA and its  affiliated  companies may open an account  through
  payroll  deduction  for as  little  as $25 per  pay  period  with no  initial
  investment.

ADDITIONAL PURCHASES

* $20

HOW TO PURCHASE

MAIL

[ENVELOPE GRAPHIC]
* To open an account, send your application and check to:
     USAA Investment Management Company
     9800 Fredericksburg Road
     San Antonio, TX 78288
* To  add to  your account, send your check and  the "Invest by Mail" stub that
  accompanies your Fund's transaction confirmation to the Transfer Agent:
     USAA Shareholder Account Services
     9800 Fredericksburg Road
     San Antonio, TX 78288

                                      10
<PAGE>

IN PERSON
   
[HANDSHAKE GRAPHIC]
* To open an account, bring your application and check to:
     USAA Investment Management Company
     USAA Federal Savings Bank
     10750 Robert F. McDermott Freeway
     San Antonio, TX 78288
    
BANK WIRE
   
[WIRE GRAPHIC]
* Instruct  your bank  (which may  charge a fee for the  service)  to  wire the
  specified amount to the Fund as follows:
     State Street Bank and Trust Company
     Boston, MA 02101
     ABA#011000028
     Attn:  USAA First Start Growth Fund
     USAA Account Number:  69384998
     Shareholder(s) Name(s)_________________________________________
     Shareholder(s) Mutual Fund Account Number______________________
    
ELECTRONIC FUNDS TRANSFER

[CALENDAR GRAPHIC]
* Additional  purchases on a regular basis can be deducted from a bank account,
  paycheck,  income-producing  investment,  or USAA money market fund  account.
  Sign up for these services when opening an account or call  1-800-531-8448 to
  add these services.

PHONE  1-800-531-8448

[TELEPHONE GRAPHIC]
* If you have an existing USAA mutual fund account and would like to open a new
  account or exchange to another USAA Fund, call for  instructions.  To open an
  account by phone,  the new account  must have the same  registration  as your
  existing account.

Redemption of Shares

You may redeem Fund shares by any of the methods described below on any day the
NAV per share is calculated.  Redemptions are effective on the day instructions
are received in a manner as  described  below.  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.
   
We will send you your  money  within  seven days  after the  effective  date of
redemption.  Payment for redemption of shares purchased by EFT or check is sent
after the EFT or check 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. Redemptions are
subject  to taxes  based on the  difference  between  the cost of  shares  when
purchased and the price received upon redemption.
    
                                      11
<PAGE>

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

HOW TO REDEEM

WRITTEN, FAX, TELEGRAPH, OR TELEPHONE

[FAX MACHINE GRAPHIC]
* Send your written instructions to:
     USAA Shareholder Account Services
     9800 Fredericksburg Road
     San Antonio, TX 78288
* Send a signed fax to  1-800-292-8177,  or send a telegram to USAA Shareholder
  Account Services.
* Call toll free 1-800-531-8448, in San Antonio, 456-7202.
   
Telephone redemption privileges are 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,  the following  information is obtained:
(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.  Additionally, all telephone communications with you are recorded
and confirmations of account transactions are sent to the address of record. If
you were issued stock  certificates  for your shares,  redemption by telephone,
fax, or telegram is not available.
    
IMPORTANT INFORMATION ABOUT PURCHASES AND REDEMPTIONS

Investor's Guide to USAA Mutual Fund Services

[INVESTOR'S GUIDE GRAPHIC]
Upon your initial  investment with us, you will receive the Investor's Guide to
help you get the most out of your USAA mutual  fund  account and to help you in
your role as an investor.  In the Investor's  Guide,  you will find  additional
information on purchases,  redemptions,  and methods of payment.  You will also
find in-depth information on automatic investment plans, shareholder statements
and reports, and other useful information.
       
Account Balance
   
USAA Shareholder  Account Services (SAS), the Fund's transfer agent, may assess
annually 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 
    
                                      12
<PAGE>

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);  however, this 1% charge will
  not be imposed upon shareholders  unless authorized by the Board of Directors

* require  a  signature  guarantee  for  transactions  or  changes  in  account
  information  in those  instances  where the  appropriateness  of a  signature
  authorization  is  in  question.  The  Statement  of  Additional  Information
  contains information on acceptable guarantors;

* redeem an account with less than 10 shares, with certain limitations.

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 the shares to be acquired are
offered in your state of residence.  After the exchange order is received,  the
Fund's  transfer agent will  simultaneously  process  exchange  redemptions and
purchases  at  the  share  prices  next  determined.  The  investment  minimums
applicable to share  purchases also apply to exchanges.  For federal income tax
purposes,  an exchange  between Funds is a taxable event;  and as such, you may
realize a capital gain or loss.  Such capital  gains or losses are based on the
difference  between the cost of shares when  purchased  and the price  received
upon exchange.

The Fund has undertaken certain procedures regarding telephone  transactions as
described on page 12.
    
                                      13
<PAGE>

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  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).

SHAREHOLDER INFORMATION

Share Price Calculation
   
                                 NAV PER SHARE
                                     EQUALS
                                 TOTAL ASSETS
                                     MINUS
                                  LIABILITIES
                                   DIVIDED BY
                                  # OF SHARES
                                  OUTSTANDING
    
The price at which you  purchase  and  redeem  Fund  shares is equal to the net
asset value (NAV) per share determined on the effective date of the purchase or
redemption.  You may buy and sell Fund  shares  at the NAV per share  without a
sales  charge.  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.
   
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  average of the bid and asked
prices is generally used.

Securities  trading in various  foreign markets may take place on days when the
NYSE is closed.  Further,  when the NYSE is open,  the  foreign  markets may be
closed.  Therefore, the calculation of the Fund's NAV may not take place at the
same time the prices of certain securities held by the Fund are determined.  In
most cases,  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. If, however,  we determine that a particular event would materially
affect the Fund's NAV, then we, under the general  supervision  of the Board of
Directors,  will use all relevant,  available  information  to determine a fair
value for the affected portfolio securities.

Over-the-counter securities are generally priced at the last sales price or, if
not available, at the average of the bid and asked prices.

Debt  securities  purchased  with  maturities  of 60 days or less are stated at
amortized  cost,  which  approximates  market value.  Other debt securities are
valued each  business  day at their  current  market value as  determined  by a
pricing service approved by the Board of Directors.  Securities which cannot 

                                      14
<PAGE>

be valued by these methods,  and all other assets,  are valued in good faith at
fair value using methods we have  determined  under the general  supervision of
the Board of Directors.

For  additional  information  on how  securities  are valued,  see VALUATION OF
SECURITIES in the Fund's Statement of Additional Information.
    
Dividends and Distributions

The Fund pays net  investment  income  dividends  yearly.  Any net capital gain
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 payments to shareholders,  if necessary,  to avoid the imposition of
any federal income or excise tax.
   
We  will   automatically   reinvest  all  income  dividends  and  capital  gain
distributions  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 dividends or capital gain distributions paid by the Fund will reduce the
NAV per share by the amount of the dividend or  distribution.  These  dividends
and 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.  Note that the Taxpayer
Relief  Act  of  1997  and  the  technical   provisions   adopted  by  the  IRS
Restructuring  and Reform Act of 1998 may  affect the status and  treatment  of
certain  distributions  shareholders  receive  from  the  Fund.  We urge you to
consult  your tax adviser  about the status of  distributions  from the Fund in
your own state and locality.

SHAREHOLDER - Dividends from taxable net investment income and distributions of
net  short-term  capital gains are taxable to you 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. These distributions may be
taxable at  different  rates  depending on the length of time the Fund held the
applicable investment.
    
                                      15
<PAGE>
       
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, or
*   fails to certify that he or she 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 the Fund's  transfer  agent,  that your tax
identification  number is correct and you are not  currently  subject to backup
withholding.

REPORTING - The Fund will report information to you annually concerning the tax
status of dividends and distributions for federal income tax purposes.
   
Year 2000

Like other organizations around the world, the Fund could be adversely affected
if the computer systems used by the Fund, its service  providers,  or companies
in which the Fund invests do not  properly  process and  calculate  information
that relates to dates beginning on January 1, 2000, and beyond.  This situation
may occur because for many years computer  programmers  used only two digits to
describe  years,  such as 98 for 1998. A program written in this manner may not
work when it encounters the year 00. To confront this situation, USAA companies
have spent much effort and money;  and we expect to have our systems  ready for
the Year 2000 by mid-1999. In addition, we are actively assessing the Year 2000
readiness of our service providers, partners, and companies in whose securities
we invest.  It is not possible for us to say that you will experience no effect
from this situation,  but we can say that we are making a large effort to avoid
any ill effects upon our shareholders.

We do believe you are entitled to know with certainty that we will stand behind
your share balance as of the close of business in 1999. When the market reopens
in 2000,  should any computer problem cause a change in the number of shares in
your account, we will return your account to its proper share balance.
    
                                      16
<PAGE>
   
FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand the Fund's
financial  performance since inception.  Certain information reflects financial
results for a single Fund share.  The total return in the table  represents the
rate that an investor  would have earned (or lost) on an investment in the Fund
(assuming  reinvestment of all dividends and  distributions).  This information
has been audited by KPMG Peat Marwick LLP, whose report,  along with the Fund's
financial  statements,  are included in the Annual  Report,  which is available
upon request.

                         Year Ended
                          July 31,
                         ----------
                            1998*
                         ----------

Net asset value at
  beginning of period    $   10.00
Net investment loss           (.10)(a)
Net realized and
  unrealized gain             2.37
                         ----------
Net asset value at
  end of period          $   12.27
                         ==========
Total return (%)             22.70
Net assets at end of
  period (000)           $  45,344
Ratio of expenses to
  average net assets (%)      1.65
Ratio of net investment
  loss to average net
  assets (%)                  (.83)
Portfolio turnover (%)       52.11
 
- -----------------
  * Fund commenced operations August 1, 1997.
(a) Calculated using weighted average shares.
    
                                      17

<PAGE>

                                   APPENDIX A

THE FOLLOWING ARE  DESCRIPTIONS  OF CERTAIN TYPES OF SECURITIES IN WHICH WE MAY
INVEST THE FUND'S ASSETS:  

CONVERTIBLE SECURITIES 
   
We may invest the Fund's  assets in  convertible  securities,  which are bonds,
preferred stocks, and other securities that pay interest or dividends and offer
the buyer the ability to convert 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  also depends on the price of the  underlying  common  stock.  
    
MONEY MARKET INSTRUMENTS  
   
We may hold a  certain  portion  of the  Fund's  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,  certificates  of  deposit,
bankers'  acceptances,  and  other  financial  institution  obligations.  These
securities may carry fixed or variable interest rates.
    
ILLIQUID SECURITIES 
   
We may  invest  up to 15% of the  Fund's  net  assets in  securities  which are
illiquid.  Illiquid  securities are those securities that cannot be disposed of
in the ordinary course of business,  seven days or less, at  approximately  the
value at which the Fund has valued the securities.
    
FORWARD CURRENCY CONTRACTS 

We may hold  securities  denominated in foreign  currencies.  As a result,  the
value of these  securities  will be  affected by changes in the  exchange  rate
between the dollar and the foreign  currencies.  In managing currency exposure,
the Fund may enter into forward currency contracts. A forward currency contract
is 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.  The Fund may only enter into forward  currency  contracts.  When the
Fund enters into a contract for the purchase or sale of a security  denominated
in a foreign  currency,  it desires to "lock in" the U.S.  dollar price of that
security.

                                      18
<PAGE>

                                   APPENDIX B

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 (1)                     Very high
First Start Growth                       Moderate to high
Gold (1)                                 Very high
Growth                                   Moderate to high
Growth & Income                          Moderate
International (1)                        Moderate to high
S&P 500 Index (2)                        Moderate
Science & Technology                     Very high
World Growth (1)                         Moderate to high
- ---------------------------------------------------------------
ASSET ALLOCATION
- ---------------------------------------------------------------
Balanced Strategy (1)                    Moderate
Cornerstone Strategy (1)                 Moderate
Growth and Tax Strategy                  Moderate
Growth Strategy (1)                      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 (3)                            Moderate
Intermediate-Term (3)                    Low to moderate
Short-Term (3)                           Low
State Bond/Income (3,4)                  Moderate
- ---------------------------------------------------------------
MONEY MARKET
- ---------------------------------------------------------------
Money Market (5)                         Very low
Tax Exempt Money Market (3,5)            Very low
Treasury Money Market Trust (5)          Very low
State Money Market (3,4,5)               Very low
===============================================================
    
1  FOREIGN   INVESTING  IS  SUBJECT  TO  ADDITIONAL  RISKS,  SUCH  AS  CURRENCY
   FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL INSTABILITY.

2  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.

3  SOME INCOME MAY BE SUBJECT TO STATE OR LOCAL TAXES.

4  CALIFORNIA, FLORIDA, NEW YORK, TEXAS, AND VIRGINIA FUNDS ARE OFFERED ONLY TO
   RESIDENTS OF THOSE STATES.

5  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.

                                      19
<PAGE>
   
If you would like more information about the Fund, you may call  1-800-531-8181
to request a free copy of the Fund's Statement of Additional Information (SAI),
Annual or Semiannual  Report, or to ask other questions about the Fund. The SAI
has been filed with the Securities and Exchange Commission (SEC) and is legally
a part  of the  Prospectus.  In the  Fund's  Annual  Report,  you  will  find a
discussion  of  the  market   conditions   and   investment   strategies   that
significantly affected the Fund's performance during the last fiscal year.

To view these documents,  along with other related documents, you can visit the
SEC's  Internet  web  site  (http://www.sec.gov)  or  the  Commission's  Public
Reference Room in Washington,  D.C.  Information on the operation of the public
reference room can be obtained by calling 1-800-SEC-0330.  Additionally, copies
of this  information  can be obtained,  for a  duplicating  fee, by writing the
Public Reference Section of the Commission, Washington, D.C. 20549-6009.

                INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
                       USAA Investment Management Company
                            9800 Fredericksburg Road
                            San Antonio, Texas 78288
                -----------------------------------------------
             TRANSFER AGENT                           CUSTODIAN
    USAA Shareholder Account Services    State Street Bank and Trust Company   
        9800 Fredericksburg Road                    P.O. Box 1713
       San Antonio, Texas 78288                Boston, Massachusetts 02105
                -----------------------------------------------
                           TELEPHONE ASSISTANCE HOURS
                         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

                   Investment Company Act File No. 811-2429
    
<PAGE>

                                     Part B

                  Statement of Additional Information for the
   
           Aggressive Growth Fund, Growth Fund, Growth & Income Fund,
             Income Stock Fund, Income Fund, Short-Term Bond Fund,
               Money Market Fund, Science & Technology Fund, and
                            First Start Growth Fund

                               is included herein
    
                 Not included in this Post-Effective Amendment
               is the Statement of Additional Information for the
   
                               S&P 500 Index Fund
    
<PAGE>
USAA    USAA                                        STATEMENT OF
EAGLE   MUTUAL                                      ADDITIONAL INFORMATION
   
LOGO    FUND, INC.                                  December 1, 1998
    
- -------------------------------------------------------------------------------

                             USAA MUTUAL FUND, INC.
   
USAA MUTUAL  FUND,  INC.  (the  Company)  is a  registered  investment  company
offering  shares of ten no-load  mutual  funds,  nine of which are described in
this Statement of Additional  Information  (SAI):  the Aggressive  Growth Fund,
Growth Fund, Growth & Income Fund,  Income Stock Fund, Income Fund,  Short-Term
Bond Fund, Money Market Fund, Science & Technology Fund, and First Start Growth
Fund (collectively, the Funds). Each Fund is classified as diversified.

You may obtain a free copy of a Prospectus dated December 1, 1998, for any Fund
by writing to USAA Mutual Fund, Inc., 9800 Fredericksburg Road, 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 the Funds.  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.

The financial  statements  of the Funds and the  Independent  Auditors'  Report
thereon  for  the  fiscal  year  ended  July  31,  1998,  are  included  in the
accompanying  Annual Report to Shareholders  of that date and are  incorporated
herein by reference.
    
- -------------------------------------------------------------------------------

                               TABLE OF CONTENTS

        PAGE
   
           2   Valuation of Securities
           3   Conditions of Purchase and Redemption
           3   Additional Information Regarding Redemption of Shares
           4   Investment Plans
           5   Investment Policies
           9   Investment Restrictions
          10   Portfolio Transactions
          13   Description of Shares
          13   Tax Considerations
          14   Directors and Officers of the Company
          16   The Company's Manager
          18   General Information
          18   Calculation of Performance Data
          19   Appendix A - Long-Term and Short-Term Debt Ratings
          22   Appendix B - Comparison of Portfolio Performance
          25   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.

     A 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,  Martin  Luther King,  Jr.
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 the  Aggressive  Growth,  Growth,  Growth &
Income, Income Stock, Income, Short-Term Bond, Science & Technology,  and First
Start Growth Funds 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 average
     of the bid and asked prices 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.

           

     The value of the Money  Market  Fund's  securities  is stated at amortized
cost which  approximates  market value. This involves valuing a security at its
cost and  thereafter  assuming  a  constant  amortization  to  maturity  of any
discount or premium,  regardless of the impact of fluctuating  interest  rates.
While this method  provides  certainty in  valuation,  it may result in periods
during which the value of an  instrument,  as determined by amortized  cost, is
higher  or lower  than the price the Fund  would  receive  upon the sale of the
instrument.

     The valuation of the Money Market Fund's portfolio  instruments based upon
their amortized cost is subject to the Fund's  adherence to certain  procedures
and conditions.  Consistent with regulatory requirements, the Manager will only
purchase  securities  with  remaining  maturities  of 397 days or less and will
maintain a dollar-weighted  average portfolio maturity of no more than 90 days.
The Manager will invest only in securities that have been determined to present
minimal   credit  risk  and  that  satisfy  the  quality  and   diversification
requirements of applicable rules and regulations of the Securities and Exchange
Commission (SEC).

     The Board of Directors has  established  procedures  designed to stabilize
the Money Market  Fund's price per share,  as computed for the purpose of sales
and redemptions,  at $1.00. There can be no assurance,  however,  that the Fund
will at all times be able to  maintain  a constant  $1.00 NAV per  share.  Such
procedures include review of the Fund's holdings at such intervals as is deemed
appropriate to determine  whether the Fund's NAV calculated by using  available
market  quotations  deviates  from $1.00 per share  and,  if so,  whether  such
deviation  may result in material  dilution or is otherwise  unfair to existing
shareholders.  In the event that it is determined that such a deviation exists,
the Board of  Directors  will  take such  corrective  action as it  regards  as
necessary  and   appropriate.   Such  action  may  include  selling   portfolio
instruments  prior to maturity to realize capital gains or losses or to shorten
average portfolio maturity,  withholding  dividends,  or establishing a NAV per
share by using available market quotations.

                                       2
<PAGE>

                     CONDITIONS OF PURCHASE AND REDEMPTION

NONPAYMENT
   
If any  order to  purchase  shares is  cancelled  due to  nonpayment  or if the
Company  does not  receive  good  funds  either  by check or  electronic  funds
transfer,  USAA Shareholder  Account  Services  (Transfer Agent) will treat the
cancellation as a redemption of shares  purchased,  and you will be responsible
for any  resulting  loss  incurred  by the  Fund or the  Manager.  If you are a
shareholder,  the Transfer Agent can redeem shares from any of your  account(s)
as  reimbursement  for  all  losses.  In  addition,  you may be  prohibited  or
restricted  from making future  purchases in any of the USAA Family of Funds. A
$15 fee is charged for all  returned  items,  including  checks and  electronic
funds transfers.
    

TRANSFER oF SHARES
   
You may transfer Fund shares to another person by sending written  instructions
to the Transfer  Agent.  The account must be clearly  identified,  and you must
include  the  number  of  shares  to be  transferred,  the  signatures  of  all
registered owners, and all stock certificates, if any, which are the subject of
transfer.  You also need to send written  instructions signed by all registered
owners and supporting documents to change an account registration due to events
such as divorce,  marriage, or death. If a new account needs to be established,
you must complete and return an application to the Transfer Agent.
    

             ADDITIONAL INFORMATION REGARDING REDEMPTION OF SHARES

The value of your 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 the  Aggressive  Growth,  Growth,  Growth &
Income, Income Stock, Income,  Short-Term Bond, Science & Technology,  or First
Start Growth  Funds and less than 500 shares of the Money Market Fund  provided
(1) the value of the account has been  reduced,  for reasons  other than market
action,  below the minimum  initial  investment in such 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 you. Shares will be redeemed at the NAV on the date
fixed for redemption by the Board of Directors.  Prompt payment will be made by
mail to your last known address.
    
     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,  the Company may
require a signature  guarantee.  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.

REDEMPTION BY CHECK

Shareholders  in the Short-Term Bond Fund or Money Market Fund may request that
checks be issued for their  accounts.  Checks  must be written in amounts of at
least $250.
   
     Checks  issued to  shareholders  of  either  Fund will be sent only to the
person in whose  name the  account  is  registered  and only to the  address of
record.  The checks must be manually signed by the registered  owner(s) exactly
as the account is  registered.  For joint  accounts the  signature of either or
both joint owners will be required on the check, according to the election made
on the signature card. You will continue to earn dividends until the shares are
redeemed by the presentation of a check.

     When a check is presented to the Transfer Agent for payment,  a sufficient
number of full and  fractional  shares  from your  account  will be redeemed to
cover the amount of the check.  If the account balance is not adequate to cover
the amount of a check,  the check will be returned  unpaid. A check drawn on an
account in the Short-Term Bond Fund may be returned for  insufficient  funds if
the NAV per  share of that Fund  declines  over the time  between  the date the
check was written and the date it was presented for payment.  Because the value
of the account in either the Short-Term  Bond Fund or Money Market Fund changes
as dividends  are accrued on a daily basis,  checks may not be used to close an
account.

                                       3
<PAGE>

     The  checkwriting   privilege  is  subject  to  the  customary  rules  and
regulations  of State Street Bank and Trust  Company  (State Street Bank or the
Custodian)  governing checking accounts.  There is no charge to you for the use
of the checks or for subsequent reorders of checks.
    
     The Company  reserves  the right to assess a  processing  fee against your
account for any  redemption  check not  honored by a clearing or paying  agent.
Currently,  this fee is $15 and is subject to change at any time. Some examples
of such dishonor are improper  endorsement,  checks  written for an amount less
than the minimum check amount, and insufficient or uncollectible funds.

     The Company,  the Transfer  Agent,  and State Street Bank each reserve the
right to change or suspend the  checkwriting  privilege  upon 30 days'  written
notice to participating shareholders.

     You may  request  that the  Transfer  Agent stop  payment on a check.  The
Transfer Agent will use its best efforts to execute stop payment  instructions,
but does not guarantee that such efforts will be effective.  The Transfer Agent
will charge you $10 for each stop payment you request.

                                INVESTMENT PLANS

The Company makes available the following  investment  plans to shareholders of
all the  Funds.  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 no  initial  investment  purchase  plan.  With this plan the
regular  minimum  initial  investment  amount  is  waived  if you make  monthly
additions of at least $50 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  a   non-governmental   employer,   an   income-producing
investment,  or an account with a participating  financial institution.

DIRECT DEPOSIT PROGRAM - The monthly  transfer of certain  federal  benefits to
directly  purchase  shares of a USAA mutual  fund.  Eligible  federal  benefits
include:  Social Security,  Supplemental Security Income, Veterans Compensation
and Pension,  Civil Service  Retirement  Annuity,  and Civil  Service  Survivor
Annuity.

GOVERNMENT  ALLOTMENT - The  transfer of  military  pay by the U.S.  Government
Finance Center for the purchase of USAA mutual fund shares.
    
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.  You may
initiate a "buy" or "sell" whenever you choose.

DIRECTED  DIVIDENDS  - If you own  shares  in more than one of the Funds in the
USAA  Family of Funds,  you may  direct  that  dividends  and/or  capital  gain
distributions  earned in one Fund be used to purchase shares  automatically  in
another fund.
    
     Participation in these automatic  purchase plans will permit you to engage
in dollar-cost averaging. For additional information concerning the benefits of
dollar-cost averaging, see APPENDIX C.

SYSTEMATIC WItHDRAWAL PLAN
   
If you own shares having a NAV of $5,000 or more in a single investment account
(accounts in different  Funds cannot be aggregated for this  purpose),  you 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,  you may choose to have
withdrawals   electronically   deposited  at  their  bank  or  other  financial
institution. You may also elect to have checks mailed to a designated address.

     This 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. You may terminate participation in the
plan at any time.  You are not charged  for  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.   The  Manager  will  bear  any   additional   expenses  of
administering the plan.
    
                                       4
<PAGE>

     Withdrawals  will be made by redeeming full and  fractional  shares on the
date you select 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 your
investment  and  eventually  exhaust the  account.  Reinvesting  dividends  and
distributions  helps  replenish  the  account.  Because  share  values  and net
investment income can fluctuate, you 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 your  income tax  return.  Therefore,  you 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 you  qualify for certain
types  of  retirement  programs.  For  your  convenience,  the  Manager  offers
403(b)(7) accounts and various forms of IRAs. The minimum initial investment in
each of these  plans is $250,  or no minimum  is  required  with a minimum  $50
monthly electronic  investment.  You may make subsequent  investments of $50 or
more  per  account  at  any  time.  You  may  make  investments  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  Road,
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 money sent to you after
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 you 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.  You may
obtain detailed information about the plans from the Manager.

                              INVESTMENT POLICIES
   
The  sections  captioned  WHAT IS THE  FUND'S  INVESTMENT  OBJECTIVE  AND  MAIN
STRATEGY?   and  FUND  INVESTMENTS  in  each  Fund's  Prospectus  describe  the
fundamental  investment  objective(s) and the investment policies applicable to
each Fund.  Each  Fund's  objective(s)  cannot be changed  without  shareholder
approval. The following is provided as additional information.
    
TAX-EXEMPT SECURITIES

These securities  include general  obligation  bonds,  which are secured by the
issuer's  pledge of its  faith,  credit  and  taxing  power for the  payment of
principal  and  interest;  revenue  bonds,  which are payable  from the revenue
derived from a particular  facility or class of  facilities  or, in some cases,
from the proceeds of a special excise tax or other specific revenue source, but
not from the general taxing power; and certain types of industrial  development
bonds  issued  by or on  behalf  of  public  authorities  to  obtain  funds for
privately-operated  facilities,   provided  that  the  interest  paid  on  such
securities qualifies as exempt from federal income taxes.

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.

MUNICIPAL LEASE OBLIGATIONS

The  Short-Term  Bond and Money  Market  Funds may  invest in  municipal  lease
obligations   and   certificates   of   participation   in   such   obligations
(collectively,  lease  obligations).  A lease  obligation does not constitute a
general  obligation of the  municipality  for which the  municipality's  taxing
power is pledged,  although the lease  obligation is  ordinarily  backed by the
municipality's  covenant  to  budget  for the  payments  due  under  the  lease
obligation.

                                       5
<PAGE>

     Certain  lease  obligations  contain   "non-appropriation"  clauses  which
provide  that the  municipality  has no  obligation  to make  lease  obligation
payments in future  years unless  money is  appropriated  for such purpose on a
yearly basis. Although "non-appropriation" lease obligations are secured by the
leased property,  disposition of the property in the event of foreclosure might
prove  difficult.  In  evaluating  a  potential  investment  in  such  a  lease
obligation,  the Manager will consider:  (1) the credit quality of the obligor,
(2) whether the underlying  property is essential to a  governmental  function,
and (3) whether the lease obligation contains covenants prohibiting the obligor
from substituting  similar property if the obligor fails to make appropriations
for the lease obligation.

LIQUIDITY DETERMINATIONS
   
The Board of Directors has established  guidelines  pursuant to which Municipal
Lease  Obligations,  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  SEC  limitations
applicable to each Fund's  investments in illiquid  securities.  In determining
the liquidity of Municipal Lease Obligations, 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.  Additional  factors  considered  by the Manager in  determining  the
liquidity of a municipal lease obligation are: (1) whether the lease obligation
is of a size that will be attractive to  institutional  investors,  (2) whether
the lease  obligation  contains a  non-appropriation  clause and the likelihood
that the  obligor  will fail to make an  appropriation  therefor,  and (3) such
other   factors  as  the  Manager  may   determine   to  be  relevant  to  such
determination.  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.

CALCULATION OF PORTFOLIO WEIGHTED AVERAGE MATURITY

Weighted  average  maturity  is  derived  by  multiplying  the  value  of  each
investment  by the  number of days  remaining  to its  maturity,  adding  these
calculations, and then dividing the total by the value of the Fund's portfolio.
An  obligation's  maturity is typically  determined on a stated final  maturity
basis, although there are some exceptions to this rule.

     With respect to obligations  held by the Funds, if it is probable that the
issuer of an instrument  will take advantage of a  maturity-shortening  device,
such as a call,  refunding,  or  redemption  provision,  the date on which  the
instrument will probably be called,  refunded, or redeemed may be considered to
be its maturity date. Also, the maturities of mortgage-backed  securities, some
asset-backed  securities and securities  subject to sinking fund  arrangements,
are determined on a weighted average life basis,  which is the average time for
principal to be repaid. For mortgage-backed  and some asset-backed  securities,
this average time is  calculated by assuming a constant  prepayment  rate (CPR)
for the life of the  mortgages or assets  backing the  security.  The CPR for a
security can vary depending  upon the level and  volatility of interest  rates.
This,  in turn,  can affect the  weighted  average  life of the  security.  The
weighted  average lives of these  securities  will be shorter than their stated
final maturities.  In addition, for purposes of the Fund's investment policies,
an  instrument  will be treated as having a  maturity  earlier  than its stated
maturity date if the instrument  has technical  features such as puts or demand
features which,  in the judgment of the Manager,  will result in the instrument
being valued in the market as though it has the earlier maturity.

     The Money Market Fund will  determine the maturity of an obligation in its
portfolio  in  accordance  with Rule 2a-7 under the  Investment  Company Act of
1940, as amended (1940 Act).

WRITING COVERED CALL OPTIONS

The Income  Stock Fund may write  (sell)  covered  call  options  and  purchase
options to close out  options  previously  written by the Fund.  The purpose of
writing covered call options is to generate  additional  premium income for the
Fund.  This  premium  income will serve to enhance the Fund's  total return and
will  reduce the effect of any price  decline of the  security  involved in the
option. Covered call options will

                                       6

generally be written on securities  which,  in the Manager's  opinion,  are not
expected to make any major  price moves in the near future but which,  over the
long term, are deemed to be attractive investments for the Fund.

     A call option gives the holder (buyer) the right to purchase a security at
a specified  price (the  exercise  price) at any time until a certain date (the
expiration  date).  So long as the  obligation  of the writer of a call  option
continues,  he may be assigned an exercise notice by the broker-dealer  through
whom such option was sold,  requiring  him to deliver the  underlying  security
against  payment of the exercise  price.  This  obligation  terminates upon the
expiration of the call option, or such earlier time at which the writer effects
a closing  purchase  transaction by repurchasing the option which he previously
sold. To secure his obligation to deliver the  underlying  security in the case
of a call  option,  a writer is  required  to deposit in escrow the  underlying
security  or  other  assets  in  accordance  with the  rules of the  particular
clearing  corporations  and of the exchanges.  The Fund will write only covered
call  options.  This  means  that the Fund will only  write a call  option on a
security  which the Fund already owns.  The Fund will not write call options on
when-issued  securities.  The Fund will write  covered call options in standard
contracts which may be quoted on NASDAQ, or on national  securities  exchanges.
To comply with the  requirements of the securities laws in several states,  the
Fund will not write a covered call option if, as a result, the aggregate market
value of all  portfolio  securities  covering  call  options  exceeds 5% of the
market value of the Fund's total assets.

     Portfolio  securities  on  which  call  options  may be  written  will  be
purchased solely on the basis of investment  considerations consistent with the
Fund's  investment  objectives.  The  writing  of  covered  call  options  is a
conservative  investment  technique  believed to involve relatively little risk
(in contrast to the writing of naked or uncovered options,  which the Fund will
not do),  but capable of  enhancing  the Fund's  total  return.  When writing a
covered  call  option,  the  Fund,  in  return  for the  premium,  gives up the
opportunity  for profit from a price increase in the underlying  security above
the exercise price, but conversely retains the risk of loss should the price of
the security decline.  Unlike one who owns securities not subject to an option,
the Fund has no control  over when it may be  required  to sell the  underlying
securities,  since it may be assigned  an exercise  notice at any time prior to
the expiration of its  obligation as a writer.  If a call option which the Fund
has written expires, the Fund will realize a gain in the amount of the premium;
however,  such  gain may be  offset by a  decline  in the  market  value of the
underlying  security during the option period. If the call option is exercised,
the Fund will realize a gain or loss from the sale of the underlying  security.
The security  covering the call will be maintained  in a segregated  account of
the Fund's  custodian.  The Fund does not consider a security covered by a call
to be  pledged  as that term is used in the  Fund's  policy  which  limits  the
pledging or mortgaging of its assets.

     The  premium  received is the market  value of an option.  The premium the
Fund will receive from writing a call option will reflect,  among other things,
the current market price of the underlying  security,  the  relationship of the
exercise  price to such market price,  the historical  price  volatility of the
underlying  security,  and the  length of the  option  period.  In  determining
whether a particular  call option  should be written on a particular  security,
the Manager will consider the reasonableness of the anticipated premium and the
likelihood  that a liquid  secondary  market will exist for those options.  The
premium  received by the Fund for writing covered call options will be recorded
as a  liability  in the  Fund's  statement  of  assets  and  liabilities.  This
liability  will be adjusted daily to the option's  current market value,  which
will be the  latest  sale  price at the time at which  the NAV per share of the
Fund is  computed  (close of the NYSE),  or in the  absence  of such sale,  the
latest asked price.  The liability will be extinguished  upon expiration of the
option,  the  purchase  of an  identical  option in a closing  transaction,  or
delivery of the underlying security upon the exercise of the option.

     Closing transactions may be effected to realize a profit on an outstanding
call option, to prevent an underlying  security from being called, or to permit
the  sale  of  the  underlying  security.  Furthermore,   effecting  a  closing
transaction will permit the Fund to write another call option on the underlying
security with either a different exercise price or expiration date or both.

     If the Fund desires to sell a particular  security  from its  portfolio on
which  it has  written  a call  option,  it  will  seek  to  effect  a  closing
transaction prior to, or concurrently with, the sale of the security. There is,
of  course,  no  assurance  that the Fund will be able to effect  such  closing
transactions  at a  favorable  price.  If the Fund  cannot  enter  into  such a
transaction, it may be required to hold a security that it might otherwise have
sold,  in which case it would  continue to be at market  risk on the  security.
This could result in higher transaction costs, including brokerage commissions.
The Fund will pay  brokerage  commissions  in  connection  with the  writing of
options to close out previously written options. Such brokerage commissions are
normally  higher than those  applicable  to  purchases  and sales of  portfolio
securities.

     Call options  written by the Fund will normally have  expiration  dates of
less than nine months from the date written.  The exercise price of the options
may be below,  equal to, or above the current  market values of the  underlying
securities at the time the options are written. From time to time, the Fund may
purchase an  underlying  security for delivery in  accordance  with an exercise
notice of a call option  assigned to it, rather than  delivering  such security
from its portfolio.  In such cases,  additional  brokerage  commissions will be
incurred.

                                       7
<PAGE>

     The Fund will realize a profit or loss from a closing purchase transaction
if the cost of the  transaction is less or more than the premium  received from
the  writing of the option.  Because  increases  in the market  price of a call
option will generally  reflect  increases in the market price of the underlying
security,  any loss resulting from the repurchase of a call option is likely to
be offset in whole or in part by appreciation of the underlying  security owned
by the Fund.

FORWARD CURRENCY CONTRACTS
   
The Aggressive Growth,  Science & Technology,  and First Start Growth Funds 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 each 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,
each 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 each 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.  Each 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 each 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 each 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  each 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 each 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.

     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 you 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 each Fund at one rate,
while offering a lesser rate of exchange  should the Fund desire to resell that
currency to the dealer.
    
INVESTMENTS IN REAL ESTATE INVESTMENT TRUSTS (REITS)
   
Because the Aggressive Growth,  Growth, Growth & Income,  Income, Income Stock,
Science &  Technology,  and First Start Growth Funds may invest their assets in
equity  securities  of REITs,  these Funds may also be subject to certain risks
associated with direct  investments in REITs. In addition,  the Short-Term Bond
and Income Funds may invest their assets in the debt  securities  of REITs and,
therefore,  may be  subject  to  certain  other  risks,  such as  credit  risk,
associated  with  investment  in the debt  securities  of  REITs.  REITs may be
affected by changes in the value of their underlying properties and by defaults
by borrowers or tenants.  Furthermore,  REITs are  dependent  upon  specialized
management   skills  of  their   managers  and  may  have  limited   geographic
diversification,  thereby,  subjecting  them to risks  inherent in  financing a
limited number of projects. REITs depend generally on their ability to generate
cash  flow to make  distributions  to  shareholders,  and  certain  REITs  have
self-liquidation  provisions  by which  mortgages  held may be paid in full and
distributions of capital returns may be made at any time.
    
CONVERTIBLE SECURITIES
   
Convertible  securities are bonds,  preferred stocks, and other securities that
pay  interest  or  dividends  and offer the buyer the  ability to  convert  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
    
                                       8
<PAGE>

appreciation  of  the  underlying   common  stock,  the  value  of  convertible
securities also depends on the price of the underlying common stock.

     The  convertible  securities  in which the Funds 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.  The
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.
   
TEMPORARY DEFENSIVE POLICY

Each Fund may on a temporary basis because of market,  economic,  political, or
other  conditions,  invest  up to  100%  of  its  assets  in  investment-grade,
short-term debt instruments.  Such securities may consist of obligations of the
U.S. Government,  its agencies or instrumentalities,  and repurchase agreements
secured by such  instruments;  certificates of deposit of domestic banks having
capital,  surplus,  and undivided  profits in excess of $100 million;  banker's
acceptances  of  similar  banks;  commercial  paper  and other  corporate  debt
obligations.
    
                            INVESTMENT RESTRICTIONS
   
The following investment  restrictions have been adopted by the Company for and
are  applicable  to each Fund except the Science &  Technology  and First Start
Growth Funds,  which are listed  separately  below.  Except with respect to the
Growth & Income  Fund,  Income  Stock Fund,  and  Short-Term  Bond 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. With respect to the Growth & Income Fund, Income Stock Fund,
and Short-Term Bond Fund,  only  restrictions 3, 4, 6, 7, 10, 13, 16 and 17 may
not be  changed  without  approval  of  shareholders,  as defined  herein.  The
investment  restrictions of one Fund may be changed without  affecting those of
any other Fund.

A Fund may not:

(1)  Purchase or retain  securities of any issuer if any officer or Director of
     the  Company or its  Manager own  individually  more than  one-half of one
     percent  (1/2%) of the  securities of that issuer,  and  collectively  the
     officers and  Directors of the Company and Manager  together own more than
     5% of the securities of that issuer.

(2)  Purchase  from or sell to any  officer or  Director  of the Company or its
     Manager  any  securities  other than  shares of the  capital  stock of the
     Funds.

(3)  Underwrite  securities  of other  issuers,  except that the Company may be
     deemed to be a statutory underwriter in the distribution of any restricted
     securities or not readily marketable securities.

(4)  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).

(5)  Invest in companies for the purpose of exercising control or management.

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

(7)  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.

(8)  Invest in warrants  more than 2% of the value of its assets,  taken at the
     lower of cost or market value.  Warrants  initially attached to securities
     and acquired by the Fund upon original issuance thereof shall be deemed to
     be without value.

(9)  Mortgage,  pledge, or hypothecate any of its assets, except for the Income
     Stock Fund. A security covered by a call is not considered pledged.

(10) 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. Banks are not
     considered  a single  industry  for  purposes of this policy  (solely with
     respect to the Money  Market  Fund),  nor shall this  limitation  apply to
     securities  issued or guaranteed  by the U.S.  Government or its corporate
     instrumentalities.

                                       9
<PAGE>

(11) Acquire  securities  of other  open-end  investment  companies,  except in
     connection with a merger, consolidation, or acquisition of assets approved
     by the shareholders.

(12) Invest  more than 5% of the value of its  total  assets in any  closed-end
     investment  company  and  will not hold  more  than 3% of the  outstanding
     voting stock of any closed-end investment company.

(13) Purchase  or  sell  commodities,  commodity  contracts,  or  real  estate,
     although a Fund may invest in the  securities  of real  estate  investment
     trusts.

(14) Engage in margin  transactions  or arbitrage  or short  sales,  or in put,
     call,  straddle,  or spread  activities,  except the Income Stock Fund may
     write covered call options as described under INVESTMENT  POLICIES in this
     Statement of Additional Information.

(15) Allow its  Manager or officers  or  Directors  of itself or its Manager to
     take long or short positions in shares of a Fund, except that such persons
     may purchase shares for their own account for investment  purposes only at
     the price available to the public at the moment of such purchase.

(16) Change  the  nature  of its  business  so as to cease to be an  investment
     company.

(17) Issue senior securities, as defined in the Investment Company Act of 1940,
     as amended (the 1940 Act),  except as  permitted  by Section  18(f)(2) and
     rules thereunder.

Each of the Science & Technology and First Start Growth Funds 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)  Invest 25% or more 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.

(7)  Purchase  or sell  commodities,  except  that  each  Fund  may  invest  in
     financial futures contracts, options thereon, and similar instruments.

(8)  Purchase or sell real estate  unless  acquired as a result of ownership of
     securities  or other  instruments,  except  that each  Fund may  invest in
     securities  or other  instruments  backed by real estate or  securities of
     companies  that deal in real  estate  or are  engaged  in the real  estate
     business.
    
     With respect to each Fund's concentration policies as described above, 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.  The Manager
classifies municipal obligations by projects with similar characteristics, such
as toll road revenue bonds,  housing revenue bonds or higher education  revenue
bonds.

     In  addition,  with  respect  to the  Money  Market  Fund's  exclusion  of
investment in banks for purposes of industry  concentration limits contained in
investment  restriction  10,  certificates of deposit,  time deposits,  bankers
acceptances,  and other  similar  money market  instruments  issued by domestic
banks may be excluded from the industry  concentration limits set forth in that
restriction.
   
ADDITIONAL RESTRICTION

The following  restriction is not considered to be a fundamental  policy of the
Funds.  The Board of Directors may change this additional  restriction  without
notice to or approval by the shareholders.

     Each Fund may not 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

                                      10
<PAGE>

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.

     The Funds will have no  obligation to deal with any  particular  broker or
group  of  brokers  in the  execution  of  portfolio  transactions.  The  Funds
contemplate  that,  consistent with obtaining the best overall terms available,
brokerage  transactions  may be effected  through USAA  Brokerage  Services,  a
discount brokerage service of the Manager. The Company's Board of Directors has
adopted procedures in conformity with Rule 17e-1 under the 1940 Act designed to
ensure that all  brokerage  commissions  paid to USAA  Brokerage  Services  are
reasonable  and fair.  The  Company's  Board of Directors  has  authorized  the
Manager,  as a member  of the  Chicago  Stock  Exchange,  to  effect  portfolio
transactions  for the  Funds on such  exchange  and to retain  compensation  in
connection with such  transactions.  Any such transactions will be effected and
related compensation paid only in accordance with applicable SEC regulations.

     In the allocation of brokerage business,  preference may be given to those
broker-dealers who provide research or other services to the Manager as long as
there is no sacrifice  in obtaining  the best  overall  terms  available.  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.

BROKERAGE COMMISSIONS

During the last three  fiscal  years,  the Funds paid the  following  brokerage
fees:
   
     FUND                        1996          1997          1998
     ----                        ----          ----          ----
     Aggressive Growth       $  124,620    $  304,478    $  663,760
     Growth                  $2,149,922    $2,375,456    $1,372,786
     Growth & Income         $  332,154    $  480,256    $  818,620
     Income Stock            $1,668,406    $1,522,541    $1,277,682
     Income                  $   78,950    $  201,250    $  204,200
     Science & Technology          --            --      $  126,610
     First Start Growth            --            --      $   49,219
    
                                      11
<PAGE>

During the last three fiscal years, the Funds paid the following brokerage fees
to USAA Brokerage Services, a discount brokerage service of the Manager:
   
     FUND                      1996          1997          1998*
     ----                      ----          ----          -----
     Aggressive Growth       $  --         $ 2,000       $  1,800
     Growth                  $21,360       $87,280       $159,936
     Growth & Income         $ 4,576       $18,044       $ 33,400
     Income Stock            $ 8,000       $20,000       $139,527
     Income                  $21,200          --         $ 19,200
     Science & Technology       --            --         $ 12,435
     First Start Growth         --            --         $  6,159
- --------------
     *These amounts are .27%, 11.65%,  4.08%, 10.92%, 9.40%, 9.82%, and 12.51%,
respectively, of brokerage fees paid by each Fund.

For the year ended July 31, 1998, .48%, 12.68%, 4.65% 22.84%,  10.65%,  15.03%,
and 14.70% of the  aggregate  dollar  amounts  of  transactions  involving  the
payment of  commissions  by the  Aggressive  Growth,  Growth,  Growth & Income,
Income Stock, Science & Technology, and First Start Growth Funds, respectively,
were effected through USAA Brokerage Services.

     The Manager  directed a portion of the Fund's  brokerage  transactions  to
certain  broker-dealers  that  provided  the Manager with  research,  analysis,
advice  and  similar  services.  Such  transactions  amounted  to  $17,258,592,
$299,575,175, $201,362,987, $139,438,215, $27,494,752, and $15,988,425, and the
related  brokerage  commissions  or  underwriting   commissions  were  $50,989,
$303,670,  $199,445,  $166,618, $28,575, and $15,185 for the Aggressive Growth,
Growth,  Growth & Income,  Income Stock, Science & Technology,  and First Start
Growth Funds, respectively for the year ended July 31, 1998.
    
PORTFOLIO TURNOVER RATES

The rate of portfolio  turnover will not be a limiting  factor when the Manager
deems changes in the Aggressive Growth,  Growth, Growth & Income, Income Stock,
Income,  Short-Term Bond,  Science & Technology,  and First Start Growth Funds'
portfolios appropriate in view of each Fund's investment  objectives.  Although
no Fund will purchase or sell securities solely to achieve  short-term  trading
profits,  a Fund may sell portfolio  securities without regard to the length of
time held if consistent with the Fund's investment objectives.  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,  short-term  U.S.  Government  securities,  and variable rate securities
(those  securities  with put date  intervals  of less  than one  year)  are not
considered when computing the turnover rate.

     For the last two fiscal years, the Funds' portfolio turnover rates were as
follows:
   
     FUND                            1997           1998
     ----                            ----           ----
     Aggressive Growth              57.15%         83.32%
     Growth                         75.41%         68.93%
     Growth & Income                14.67%         29.38%
     Income Stock                   34.95%         22.34%
     Income*                        57.50%         47.35%
     Short-Term Bond                27.85%         48.24%
     Science & Technology             --           76.31%
     First Start Growth               --           52.11%
    
- --------------
*  The Fund has  simultaneously  purchased and sold the same securities.  These
   transactions have at times been high in volume and dissimilar to other trade
   activity  within the Fund.  If these  transactions  were  excluded  from the
   calculation, the portfolio turnover rate would have been as follows:
   
                                                         YEAR ENDED JULY 31
                                                         ------------------
                                                        1997             1998
                                                        ----             ----

     Portfolio turnover                                 22.07%           42.11%
     Purchases and sales of this type are as follows:
       Purchases (000)                                $593,587          $88,811
       Sales (000)                                    $594,283          $88,915

                                      12
<PAGE>

                             DESCRIPTION OF SHARES

The Funds are a series of the  Company and are  diversified.  The Company is an
open-end management investment company incorporated under the laws of the state
of Maryland.  The Company is authorized  to issue shares in separate  series or
Funds.  There are ten mutual funds in the Company,  nine 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  Growth,  Income,  and  Money  Market  Funds  were
established in the Fall of 1980 and commenced  public  offering of their shares
on February 2, 1981. The Aggressive Growth Fund was established by the Board of
Directors  on July 8, 1981,  and  commenced  public  offering  of its shares on
October  19,  1981.  The  Income  Stock  Fund was  established  by the Board of
Directors on January 23, 1987, and commenced  public  offering of its shares on
May 4, 1987. The Growth & Income and Short-Term Bond Funds were  established by
the Board of Directors  on March 23, 1993,  and  commenced  public  offering of
their shares on June 1, 1993.  The Science & Technology  and First Start Growth
Funds were  established by the Board of Directors on May 9, 1997, and commenced
public offering of their shares on August 4, 1997.
    
     Each  Fund's  assets  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 the  Funds'
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  to obtain  signatures to
request a special  shareholder  meeting.  The Company 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.  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 10% 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.
The  Company  will  assist in  communicating  to other  shareholders  about the
meeting.  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 Funds'
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)  and  (2)   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.

                                      13
<PAGE>

     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 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 who supervise
the business  affairs of the  Company.  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 Road, San Antonio, TX 78288.

Robert G. Davis 1, 2
Director and Chairman of the Board of Directors
Age: 52

Deputy  Chief  Executive  Officer for  Capital  Management  of United  Services
Automobile  Association  (USAA)  (6/98-present);   President,  Chief  Executive
Officer,  Director and Vice  Chairman of the Board of Directors of USAA Capital
Corporation  and several of its  subsidiaries  and  affiliates  (1/97-present);
President,  Chief  Executive  Officer,  Director  and  Chairman of the Board of
Directors of USAA Financial Planning Network,  Inc.  (1/97-present);  Executive
Vice President,  Chief Operating  Officer,  Director,  and Vice Chairman of the
Board of Directors  of USAA  Financial  Planning  Network,  Inc.  (6/96-12/96);
Special Assistant to Chairman, 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 serves as a
Director/Trustee  and Chairman of the Boards of  Directors/Trustees  of each of
the remaining  funds within the USAA Family of Funds;  Director and Chairman of
the Boards of Directors of USAA  Investment  Management  Company  (IMCO),  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: 57

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,    Director/Trustee   and   Vice   Chairman   of   the   Boards   of
Directors/Trustees  of each of the  remaining  Funds  within the USAA Family of
Funds and USAA Shareholder  Account  Services;  Director of USAA Life Insurance
Company; Trustee and Vice Chairman of USAA Life Investment Trust.

John W. Saunders, Jr. 1, 2, 4
Director and Vice President
Age: 63

Senior Vice President,  Fixed Income  Investments,  IMCO  (10/85-present).  Mr.
Saunders serves as Director/Trustee and Vice President of each of the remaining
Funds within the USAA Family of Funds;  Director of IMCO; Senior Vice President
of USAA Shareholder  Account  Services;  Vice President of USAA Life Investment
Trust.

Barbara B. Dreeben 3, 4, 5
200 Patterson #1008
San Antonio, TX 78209
Director
Age: 53

President,   Postal  Addvantage  (7/92-present);   Consultant,   Nancy  Harkins
Stationer  (8/91-12/95).  Mrs. Dreeben serves as a Director/Trustee  of each of
the remaining Funds within the USAA Family of Funds.

Howard L. Freeman, Jr. 2, 3, 4, 5
2710 Hopeton
San Antonio, TX 78230
Director
Age: 63

Retired. Assistant General Manager for Finance, San Antonio City Public Service
Board  (1976-1996).  Mr.  Freeman serves as a  Director/Trustee  of each of the
remaining Funds within the USAA Family of Funds.

                                      14
<PAGE>

Robert L. Mason, Ph.D. 3, 4, 5
12823 Queens Forest
San Antonio, TX 78230
Director
Age: 52

Manager,   Statistical   Analysis   Section,   Southwest   Research   Institute
(8/75-present). Dr. Mason serves as a Director/Trustee of each of the remaining
Funds within the USAA Family of Funds.

Richard A. Zucker 3, 4, 5
407 Arch Bluff
San Antonio, TX 78216
Director
Age: 55

Vice President, Beldon Roofing and Remodeling (1985-present). Mr. Zucker serves
as a Director/Trustee  of each of the remaining Funds within the USAA Family of
Funds.

Michael D. Wagner 1
Secretary
Age: 50

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 of each of the remaining Funds within the USAA Family of Funds;  Vice
President,   Corporate   Counsel  for  various  other  USAA   subsidiaries  and
affiliates.

Alex M. Ciccone 1
Assistant Secretary
Age: 48

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 each of the remaining Funds within the USAA Family of Funds.

Mark S. Howard 1
Assistant Secretary
Age: 35

Assistant Vice President,  Securities Counsel,  USAA (2/98-present);  Executive
Director,  Securities  Counsel,  USAA  (9/96-2/98);  Senior Associate  Counsel,
Securities  Counsel,  USAA  (5/95-8/96);  Attorney,  Kirkpatrick & Lockhart LLP
(9/90-4/95).  Mr.  Howard  serves as Assistant  Vice  President  and  Assistant
Secretary of IMCO and USAA Shareholder Account Services; Assistant Secretary of
each of the  remaining  Funds within the USAA Family of Funds;  Assistant  Vice
President,   Securities  Counsel,  for  various  other  USAA  subsidiaries  and
affiliates.

Sherron A. Kirk 1
Treasurer
Age: 53

Vice President, Senior Financial Officer, IMCO (8/98-present);  Vice President,
Controller,  IMCO  (10/92-8/98).  Mrs.  Kirk serves as Treasurer of each of the
remaining Funds in the USAA Family of Funds;  Vice President,  Senior Financial
Officer of USAA Shareholder Account Services.

Caryl Swann 1
Assistant Treasurer
Age: 51

Director,  Mutual  Fund  Portfolio  Analysis  & Support,  IMCO  (2/98-present);
Manager,  Mutual  Fund  Accounting,  IMCO  (7/92-2/98).  Ms.  Swann  serves  as
Assistant  Treasurer  for each of the  remaining  Funds in the USAA  Family  of
Funds.
    
- --------------
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

                                      15
<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:
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, 1998.

NAME                          AGGREGATE           TOTAL COMPENSATION
 OF                         COMPENSATION             FROM THE USAA
DIRECTOR                  FROM THE COMPANY         FAMILY OF FUNDS (b)
- --------                  ----------------         -------------------
Robert G. Davis               None (a)                   None (a)
Barbara B. Dreeben          $9,175                    $36,500
Howard L. Freeman, Jr.      $9,175                    $36,500
Robert L. Mason             $9,175                    $36,500
Michael J.C. Roth             None (a)                   None (a)
John W. Saunders, Jr.         None (a)                   None (a)
Richard A. Zucker           $9,175                    $36,500
    
- --------------
(a)  Robert  G.  Davis,  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.
   
(b)  At July 31, 1998,  the USAA Family of Funds  consisted of four  registered
     investment companies offering 35 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 seven 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
in the  USAA  Family  of  Funds.  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. As of August 31, 1998, the officers and
Directors of the Company and their families as a group owned beneficially or of
record less than 1% of the outstanding shares of the Company.

     As of August 31, 1998,  USAA and its affiliates  owned  24,450,337  shares
(29.7%) of the S&P 500 Index Fund,  4,144,586 shares (3.3%) of the Income Stock
Fund,  23,931,946 shares (17.5%) of the Income Fund,  2,859,279 shares (.1%) of
the Money Market  Fund,  2,000,000  shares  (19.3%) of the Science & Technology
Fund, 2,000,000 shares (49.6%) of the First Start Growth Fund, and no shares of
the Aggressive  Growth Fund,  Growth Fund, Growth & Income Fund, and Short-Term
Bond Fund.
    
     The Company knows of no other persons who, as of August 31, 1998,  held of
record or owned beneficially 5% or more of any Fund's shares.

                             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, an affiliate of United Services Automobile Association
(USAA), a large diversified  financial services  institution,  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.
    
                                      16
<PAGE>

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 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, 1999, 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).

     From time to time the Manager may,  without prior notice to  shareholders,
waive all or any portion of fees or agree to reimburse  expenses  incurred by a
Fund.  The  Manager  has  voluntarily  agreed to  continue  to limit the annual
expenses of the Short-Term  Bond Fund to .50% and the Money Market Fund to .45%
of the Fund's ANA, respectively, until December 1, 1999, and will reimburse the
Funds for all expenses in excess of such  limitations.  After December 1, 1999,
any such waiver or  reimbursement  may be terminated by the Manager at any time
without prior notice to the shareholders.
    
     For the last three fiscal years, management fees were as follows:
   
     FUND                       1996               1997           1998
     ----                       ----               ----           ----
     Aggressive Growth       $2,039,878        $ 2,715,902    $ 2,947,204
     Growth                  $8,232,258        $10,109,782    $11,074,009
     Growth & Income         $1,761,482        $ 3,379,571    $ 5,971,874
     Income Stock            $8,097,232        $ 9,671,336    $12,163,664
     Income                  $4,325,452        $ 4,060,489    $ 4,108,452
     Short-Term Bond         $  218,705        $   277,525    $   369,691
     Money Market            $4,027,320        $ 4,798,276    $ 5,238,418
     Science & Technology        --                 --        $   521,514
     First Start Growth          --                 --        $   207,083
    
     As a result  of the  Short-Term  Bond and  Money  Market  Funds'  expenses
exceeding the expense  limitations,  the Manager did not receive feels to which
it would have been entitled as follows:
   
     FUND                       1996             1997            1998
     ----                       ----             ----            ----
     Short-Term Bond         $  145,849        $127,346        $ 90,735
     Money Market            $1,002,670        $815,135        $756,515
    
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,  each Fund pays the Transfer  Agent an annual fixed fee of $23.50 to
$26.00 per account. The fee is subject to change at any time.
    
                                      17
<PAGE>

     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.

                              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 the total return and yield of each Fund is provided under
COULD THE VALUE OF YOUR  INVESTMENT IN THE FUND  FLUCTUATE?  in its Prospectus.
See VALUATION OF SECURITIES  herein for a discussion of the manner in which the
Funds' price per share is calculated.
    
YIELD - MONEY MARKET FUND
   
When the Money Market Fund quotes a current  annualized yield, it is based on a
specified recent  seven-calendar  day period. It is computed by (1) determining
the net change,  exclusive of capital  changes and income other than investment
income, in the value of a hypothetical  preexisting account having a balance of
one share at the  beginning  of the  period,  (2)  dividing  the net  change in
account  value by the value of the account at the  beginning of the base period
to obtain the base return, then (3) multiplying the base period return by 52.14
(365/7).  The resulting yield figure is carried to the nearest hundredth of one
percent.
    
     The calculation includes (1) the value of additional shares purchased with
dividends on the original  share,  and dividends  declared on both the original
share  and  any  such  additional  shares,  and  (2) any  fees  charged  to all
shareholder  accounts,  in  proportion to the length of the base period and the
Trust's average account size.

     The capital changes  excluded from the  calculation  are realized  capital
gains and losses from the sale of securities  and unrealized  appreciation  and
depreciation.  The Fund's  effective  (compounded)  yield will be  computed  by
dividing the seven-day  annualized  yield as defined above by 365,  adding 1 to
the quotient,  raising the sum to the 365th power,  and  subtracting 1 from the
result.

     Current and effective  yields  fluctuate  daily and will vary with factors
such as  interest  rates and the  quality,  length of  maturities,  and type of
investments in the portfolio.
   
            Yield For 7-day Period ended July 31, 1998, was 5.27%.
       Effective Yield For 7-day Period ended July 31, 1998, was 5.41%.
    
YIELD - INCOME FUND AND SHORT-TERM BOND FUND

The Funds may advertise  performance in terms of a 30-day yield quotation.  The
30-day yield  quotation is computed by dividing the net  investment  income per
share earned during the period by the maximum  offering  price per share on the
last day of the period, according to the following formula:

                         Yield = 2[((a-b)/(cd)+1)^6 -1]

     Where:    a  =  dividends and interest earned during the period
               b  =  expenses accrued for the period (net of reimbursement)
               c  =  the average  daily number of shares  outstanding  during
                     the period that were entitled to receive dividends
               d  =  the maximum  offering price  per share  on the last day of
                     the period
   
     The 30-day yields for the period ended July 31, 1998,  for the Income Fund
and Short-Term Bond Fund were 6.31% and 6.06%, respectively.
    
                                      18
<PAGE>

TOTAL RETURN

The Funds may advertise performance in terms of average annual total return for
1-, 5-, and 10-year periods,  or for such lesser periods as the Funds have 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.
   
                     Average Annual Total Returns
                   For Periods Ended July 31, 1998

                           1          5         10       FROM
     FUND                YEAR       YEARS      YEARS   INCEPTION*
     ----                ----       -----      -----   ----------
Aggressive Growth        3.91%     17.52%     13.19%       --
Growth                  (4.91)%    14.96%     14.23%       --
Growth & Income          4.99%     17.72%       --       16.93%
Income Stock            13.28%     15.09%     14.57%       --
Income                   9.72%      7.02%      9.90%       --
Short-Term Bond          5.91%      5.99%       --        5.97%
Science & Technology    11.70%       --         --       11.70%
First Start Growth      22.70%       --         --       22.70%
- --------------
*  Data from  inception  is shown for Funds  that are less than ten years  old.
   Growth & Income and Short-Term  Bond Funds  commenced  operations on June 1,
   1993. Science & Technology and First Start Growth Funds commenced operations
   on August 1, 1997.
    
               APPENDIX A - LONG-TERM AND SHORT-TERM DEBT RATINGS

1.  LONG-TERM DEBT RATINGS:
   
MOODY'S INVESTOR SERVICES, INC.
    
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  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.

                                      19
<PAGE>

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.
   
NOTE:  MOODY'S APPLIES  NUMERICAL  MODIFIERS 1, 2, AND 3 IN EACH GENERIC RATING
CLASSIFICATION.  THE  MODIFIER 1  INDICATES  THAT THE  OBLIGATION  RANKS IN THE
HIGHER END OF ITS GENERIC RATING CATEGORY, THE MODIFIER 2 INDICATES A MID-RANGE
RANKING,  AND THE  MODIFIER  3  INDICATES  A  RANKING  IN THE LOWER END OF THAT
GENERIC RATING CATEGORY.

STANDARD & POOR'S RATINGS GROUP

AAA   An obligation  rated "AAA" has the highest rating  assigned by Standard &
      Poor's.  The obligor's  capacity to meet its financial  commitment on the
      obligation is extremely strong.

AA    An  obligation  rated "AA" differs from the highest  rated issues only in
      small degree. The obligor's capacity to meet its financial  commitment on
      the obligation is VERY STRONG.

A     An  obligation  rated "A" is  somewhat  more  susceptible  to the adverse
      effects  of  changes  in  circumstances  and  economic   conditions  than
      obligations in higher rated categories.  However,  the obligor's capacity
      to meet its financial commitment on the obligation is still STRONG.

BBB   An obligation rated "BBB" exhibits  adequate capacity to pay interest and
      repay  principal.   However,  adverse  economic  conditions  or  changing
      circumstances  are more  likely  to lead to a  weakened  capacity  of the
      obligor to meet its financial commitment on the obligation.

      Obligations  rated "BB," "B," "CCC," "CC," and "C" are regarded as having
      significant speculative characteristics.  "BB" indicates the least degree
      of speculation and "C" the highest.  While such  obligations  will likely
      have some quality and protective characteristics, these may be outweighed
      by large uncertainties or major exposures to adverse conditions.

BB    An obligation  rated "BB" is LESS  VULNERABLE  to  nonpayment  than other
      speculative  issues.  However,  it faces major ongoing  uncertainties  or
      exposure to adverse  business,  financial,  or economic  conditions which
      could lead to the  obligor's  inadequate  capacity to meet its  financial
      commitment on the obligation.

B     An obligation rated "B" is MORE VULNERABLE to nonpayment than obligations
      rated  "BB,"  but the  obligor  currently  has the  capacity  to meet its
      financial commitment on the obligation.  Adverse business,  financial, or
      economic   conditions  will  likely  impair  the  obligor's  capacity  or
      willingness to meet its financial commitment on the obligation.

CCC   An obligation rated "CCC" is CURRENTLY  VULNERABLE to nonpayment,  and is
      dependent upon favorable business, financial, and economic conditions for
      the obligor to meet its financial  commitment on the  obligation.  In the
      event of adverse business, financial, or economic conditions, the obligor
      is not likely to have the capacity to meet its  financial  commitment  on
      the obligation.

CC    An obligation rated "C" is CURRENTLY HIGHLY VULNERABLE to nonpayment.

C     The "C"  rating  may be used to  cover  a  situation  where a  bankruptcy
      petition has been filed or similar action has been taken, but payments on
      this obligation are being continued.

D     An obligation rated "D" is in payment default. The "D" rating category is
      used when payments on an obligation  are not made on the date due even if
      the  applicable  grace period has not expired,  unless  Standard & Poor's
      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 or
      the  taking  of a  similar  action  if  payments  on  an  obligation  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 IBCA, INC.

AAA   Highest credit  quality.  "AAA" ratings denote the lowest  expectation of
      credit  risk.  They are  assigned  only in case of  exceptionally  strong
      capacity for timely  payment of financial  commitments.  This capacity is
      highly unlikely to be adversely affected by foreseeable events.

AA    Very high credit  quality.  "AA" ratings denote a very low expectation of
      credit risk.  They  indicate very strong  capacity for timely  payment of
      financial commitments.  This capacity is not significantly  vulnerable to
      foreseeable events.

                                      20
<PAGE>

A     High credit quality. "A" ratings denote a low expectation of credit risk.
      The capacity for timely  payment of financial  commitments  is considered
      strong. This capacity may, nevertheless, be more vulnerable to changes in
      circumstances  or in  economic  conditions  than is the case  for  higher
      ratings.

BBB   Good credit quality. "BBB" ratings indicate that there is currently a low
      expectation  of credit risk. The capacity for timely payment of financial
      commitments is considered adequate,  but adverse changes in circumstances
      and in economic conditions are more likely to impair this capacity.  This
      is the lowest investment-grade category.

PLUS (+) 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, INC.
    
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.

2. SHORT-TERM DEBT RATINGS:

MOODY'S CORPORATE AND GOVERNMENT

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:

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

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 CORPORATE AND GOVERNMENT

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 issued designated A-1.

                                      21
<PAGE>

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 MUNICIPAL

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.
   
FITCH IBCA, INC.

F1    Highest  credit  quality.  Indicates  the  strongest  capacity for timely
      payment  of  financial  commitments;  may have an added "+" to denote any
      exceptionally strong credit feature.

F2    Good  credit  quality.  A  satisfactory  capacity  for timely  payment of
      financial commitments, but the margin of safety is not as great as in the
      case of the higher ratings.

F3    Fair  credit  quality.  The  capacity  for timely  payment  of  financial
      commitments is adequate;  however, near-term adverse changes could result
      in a reduction to non-investment grade.
    
DUFF & PHELPS INC.

D-1+  Highest  certainty of timely  payment.  Short-term  liquidity,  including
      internal operating factors and/or 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.
           

                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 but are not restricted to
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.

                                      22
<PAGE>

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'S MONEY FUND REPORT,  a weekly  publication  of IBC Financial  Data,  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 "IBC's Taxable First Tier Fund Average."

IBC'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 Financial Data, 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 EQUITY FUND PERFORMANCE  ANALYSIS, a weekly
and monthly  publication of industry-wide  mutual fund performance  averages by
type of fund.
    
LIPPER ANALYTICAL  SERVICES,  INC.'S FIXED INCOME FUND PERFORMANCE  ANALYSIS, a
monthly publication of industry-wide  mutual fund performance  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.
           
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.

ORLANDO SENTINEL, a newspaper which may cover financial news.

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.

                                      23
<PAGE>

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.
   
     In  addition to the sources  above,  performance  of our Funds may also be
tracked by Lipper Analytical Services,  Inc. and Morningstar,  Inc. A Fund will
be compared to Lipper's or Morningstar's appropriate fund category according to
its objective and portfolio  holdings.  Footnotes in  advertisements  and other
sales literature will include the time period applicable for any rankings used.
    
     For comparative  purposes,  unmanaged indexes of comparable  securities or
economic data may be cited. 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 recognized small cap index.

- -  S&P 500 Index, a broad-based 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  Schabaker
Investment Management and Investment Company Data, Inc. These are services that
collect and compile data on mutual fund companies.
    
                                      24
<PAGE>

                       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.

                                      25
<PAGE>

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                                      26
<PAGE>

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                                      27
<PAGE>
   
06143-1298
    
<PAGE>
                             USAA MUTUAL FUND, INC.

PART C.     OTHER INFORMATION
            -----------------
   
Item 23.    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 (8)
     (z)    Articles of Amendment dated July 9, 1997 (9)
     (aa)   Articles Supplementary dated November 12, 1997 (10)

   2        Bylaws, as amended March 12, 1996 (4)
   
   3        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)    Science & Technology Fund (9)
     (j)    First Start Growth Fund (9)
   
   4 (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-1
<PAGE>

EXHIBIT NO. EXHIBITS
- ----------- --------

     (g)    Letter  Agreement to  the Advisory  Agreement dated  August 1, 1997
             adding the  Science & Technology  Fund and First Start Growth Fund
             (9)
   
   5 (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)    Letter  Agreement dated  August 1, 1997 adding Science & Technology
             Fund and First Start Growth Fund (9)
   
   6        Not Applicable

   7 (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)    Letter  Agreement to the  Custodian Agreement dated  August 1, 1997
             with  respect to  the Science  & Technology  Fund and  First Start
             Growth Fund (9)
   
   8 (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 13, 1998 (10)
     (j)    Master  Revolving  Credit  Facility Agreement  with NationsBank  of
             Texas dated January 14, 1998 (10)
     (k)    Letter Agreement to Transfer Agency Agreement dated  August 1, 1997
             adding Science & Technology Fund and First Start Growth Fund (9)

                                      C-2

<PAGE>

EXHIBIT NO. EXHIBITS
- ----------- --------

     (l)    Transfer Agency  Agreement Fee  Schedule for  Science &  Technology
             Fund (9)
     (m)    Transfer  Agency Agreement Fee Schedule for First Start Growth Fund
             (9)
   
   9 (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  and Consent  of Counsel  with respect to the S&P 500 Index
             Fund (11)
    
     (c)    Opinion of Counsel with respect to the Aggressive Growth Fund (6)
   
     (d)    Consent  of Counsel  with respect  to the  Aggressive Growth  Fund,
             Growth Fund, Growth & Income Fund, Income Stock Fund, Income Fund,
             Short-Term  Bond Fund,  Money Market  Fund,  Science &  Technology
             Fund, and First Start Growth Fund (filed herewith)
    
     (e)    Opinion  of Counsel  with respect  to the Science & Technology Fund
             and First Start Growth Fund (8)
   
  10        Independent Accountants' Consent (filed herewith)

  11        Omitted financial statements - Not Applicable

  12        SUBSCRIPTIONS AND INVESTMENT LETTERS
    
     (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)    Subscription  and Investment  Letter for  Science & Technology Fund
             and First Start Growth Fund (9)
   
  13        12b-1 Plans - Not Applicable

  14        FINANCIAL DATA SCHEDULES
     (a)    Growth Fund (filed herewith)
     (b)    Aggressive Growth Fund (filed herewith)
     (c)    Income Fund (filed herewith)
     (d)    Money Market Fund (filed herewith)
     (e)    Income Stock Fund (filed herewith)
     (f)    Growth & Income Fund (filed herewith)
     (g)    Short-Term Bond Fund (filed herewith)
     (h)    First Start Growth Fund (filed herewith)
     (i)    Science & Technology Fund (filed herewith)

  15        Plan Adopting Multiple Classes of Shares - Not Applicable

  16        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 dated March 24, 1997 (7)
     (e)    Power of Attorney for Robert L. Mason dated March 24, 1997 (7)

                                      C-3

<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 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.

(8)  Previously  filed with  Post-Effective  Amendment No. 45 of the Registrant
     (No. 2-49560) filed with the Securities and Exchange Commission on May 16,
     1997.

(9)  Previously  filed with  Post-Effective  Amendment No. 46 of the Registrant
     (No.  2-49560)  filed  with the  Securities  and  Exchange  Commission  on
     September 30, 1997.

(10) Previously  filed with  Post-Effective  Amendment No. 47 of the Registrant
     (No.  2-49560)  filed  with the  Securities  and  Exchange  Commission  on
     February 26, 1998.
   
(11) Previously  filed with  Post-Effective  Amendment No. 48 of the Registrant
     (No.  2-49560)  filed  with the  Securities  and  Exchange  Commission  on
     February 27, 1998.
    
                                      C-4

<PAGE>
   
Item 24.    PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH FUND
            -------------------------------------------------------
            Information  pertaining  to persons  controlled  by or under common
            control with Registrant is hereby  incorporated by reference to the
            section  captioned  "Fund  Management"  in the  Prospectus  and the
            section  captioned  "Directors  and Officers of the Company" in the
            Statement of Additional Information.

Item 25.    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  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

                                      C-5

            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 26.    BUSINESS AND OTHER CONNECTIONS OF THE 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 27.    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 Road  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 Road  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 Road  Fixed Income Investments,      Director
San Antonio, TX  78288    and Director

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

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

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

Sherron A. Kirk           Vice President and             Treasurer
9800 Fredericksburg Road  Senior Financial Officer
San Antonio, TX  78288    

Alex M. Ciccone           Vice President,                Assistant
9800 Fredericksburg Road  Compliance                     Secretary
San Antonio, TX 78288
    
     (c)    Not Applicable

                                      C-7

<PAGE>
   
Item 28.    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 Road
                    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 29.    MANAGEMENT SERVICES
            -------------------
    
            Not Applicable
   
Item 30.    UNDERTAKINGS
            ------------
            None
    
                                      C-8

<PAGE>

                                   SIGNATURES
   
      Pursuant to the  requirements  of the  Securities  Act and the Investment
Company Act, 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
8th day of September 1998.
    
                                                         USAA MUTUAL FUND, INC.

                                                         /s/ MICHAEL J. C. ROTH
                                                         ----------------------
                                                         Michael J.C. Roth
                                                         President
   
         Pursuant to the  requirements of the Securities Act, this amendment to
its  Registration  Statement has been signed below by the following  persons in
the capacities and on the date(s) indicated.

        (Signature)                (Title)                         (Date)

(Not Available)                Chairman of the                
- --------------------------     Board of Directors
Robert G. Davis

/s/ MICHAEL J. C. ROTH         Vice Chairman of the Board     September 8, 1998
- --------------------------     of Directors and President
Michael J.C. Roth              (Principal Executive Officer)

/s/ SHERRON A. KIRK            Treasurer (Principal           September 8, 1998
- --------------------------     Financial and
Sherron A. Kirk                Accounting Officer)

/s/ JOHN W. SAUNDERS, JR.      Director                       September 8, 1998
- --------------------------
John W. Saunders, Jr.

/s/ ROBERT L. MASON            Director                       September 9, 1998
- --------------------------
Robert L. Mason

/s/ HOWARD L. FREEMAN, JR.     Director                       September 9, 1998
- --------------------------
Howard L. Freeman, Jr.

/s/ RICHARD A. ZUCKER          Director                       September 9, 1998
- --------------------------
Richard A. Zucker

/s/ BARBARA B. DREEBEN         Director                       September 9, 1998
- --------------------------
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 (8)
     (z)    Articles of Amendment dated July 9, 1997 (9)
     (aa)   Articles Supplementary dated November 12, 1997 (10)

   2        Voting trust agreement - Not Applicable
   
   3        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)    Science & Technology Fund (9)
     (j)    First Start Growth Fund (9)
   
   4 (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)    Letter Agreement to the Advisory Agreement dated
             August 1, 1997 adding Science & Technology Fund
             and First Start Growth Fund (9)

                                     C-10

<PAGE>

EXHIBIT                    ITEM                                      PAGE NO. *
- -------                    ----                                      ----------
   
   5 (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)    Letter Agreement dated August 1, 1997 adding Science
             & Technology Fund and First Start Growth Fund (9)
   
   6        Not Applicable

   7 (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)    Letter Agreement to the Custodian Agreement dated
             August 1, 1997 with respect to the Science & Technology
             Fund and First Start Growth Fund (9)
   
   8 (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 13, 1998 (10)
     (j)    Master Revolving Credit Facility Agreement with
             NationsBank of Texas dated January 14, 1998 (10)
     (k)    Letter Agreement to Transfer Agency Agreement dated
             August 1, 1997 adding Science & Technology Fund
             and First Start Growth Fund (9)
     (l)    Transfer Agency Agreement Fee Schedule for Science &
             Technology Fund (9)
     (m)    Transfer Agency Agreement Fee Schedule for First Start
             Growth Fund (9)

                                     C-11

EXHIBIT                        ITEM                                  PAGE NO. *
- -------                        ----                                  ----------
   
   9 (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 and Consent of Counsel  with  respect to the
             S&P 500 Index Fund (11)
    
     (c)    Opinion of Counsel with respect to the Aggressive
             Growth Fund (6)
   
     (d)    Consent of Counsel with respect to the Aggressive
             Growth Fund, Growth Fund, Growth & Income Fund, Income
             Stock Fund, Income  Fund, Short-Term Bond Fund, Money
             Market Fund, Science & Technology Fund, and First Start
             Growth Fund (filed herewith)                                   251
    
     (e)    Opinion of Counsel with respect to the Science & Technology
             Fund and First Start Growth Fund (8)
   
  10        Independent Accountants' Consent (filed herewith)               253

  11        Omitted financial statements - Not Applicable

  12        SUBSCRIPTIONS AND INVESTMENT LETTERS
    
     (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)    Subscription and Investment Letter for Science & Technology
             Fund and First Start Growth Fund (9)
   
  13        12b-1 Plans - Not Applicable

  14        FINANCIAL DATA SCHEDULES
     (a)    Growth Fund (filed herewith)                                    255
     (b)    Aggressive Growth Fund (filed herewith)                         257
     (c)    Income Fund (filed herewith)                                    259
     (d)    Money Market Fund (filed herewith)                              261
     (e)    Income Stock Fund (filed herewith)                              263
     (f)    Growth & Income Fund (filed herewith)                           265
     (g)    Short-Term Bond Fund (filed herewith)                           267
     (h)    First Start Growth Fund (filed herewith)                        269
     (i)    Science & Technology Fund (filed herewith)                      271

  15        Plan Adopting Multiple Classes of Shares - Not Applicable

  16        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, 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 dated March 24, 1997 (7)
     (e)    Power of Attorney for Robert L. Mason dated March 24, 1997 (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.

                                     C-12

<PAGE>

(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.

(8)  Previously  filed with  Post-Effective  Amendment No. 45 of the Registrant
     (No. 2-49560) filed with the Securities and Exchange Commission on May 16,
     1997.

(9)  Previously  filed with  Post-Effective  Amendment No. 46 of the Registrant
     (No.  2-49560)  filed  with the  Securities  and  Exchange  Commission  on
     September 30, 1997.

(10) Previously  filed with  Post-Effective  Amendment No. 47 of the Registrant
     (No.  2-49560)  filed  with the  Securities  and  Exchange  Commission  on
     February 26, 1998.
   
(11) Previously  filed with  Post-Effective  Amendment No. 48 of the Registrant
     (No.  2-49560)  filed  with the  Securities  and  Exchange  Commission  on
     February 27, 1998.
    
- -------------------
   * Refers to sequentially numbered pages

                                     C-13
<PAGE>


                          GOODWIN, PROCTER & HOAR LLP
                              COUNSELLORS AT LAW
                                EXCHANGE PLACE
                       BOSTON, MASSACHUSETTS 02109-2881
                                                       TELEPHONE (617) 570-1000
                                                      TELECOPIER (617) 523-1231

                                    September 28, 1998

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

Ladies and Gentlemen:

         We hereby consent to the reference in Post-Effective  Amendment No. 49
(the  "Amendment") to the Registration  Statement (No. 2-49560) on Form N-1A of
USAA Mutual Fund, Inc. (the "Registrant"),  a Maryland corporation,  to (i) our
opinion  with  respect  to  the  legality  of  the  shares  of  the  Registrant
representing  interests  in the Growth Fund,  Income  Fund,  Money Market Fund,
Income Stock Fund,  Growth & Income Fund and Short-Term Bond Fund series of the
Registrant, which opinion was filed with Post-Effective Amendment No. 39 to the
Registration  Statement,  (ii) our opinion  with respect to the legality of the
shares of the Registrant  representing  interests in the Aggressive Growth Fund
series of the Registrant, which opinion was filed with Post-Effective Amendment
No. 43 to the Registration  Statement and (iii) our opinion with respect to the
legality of the shares of the Registrant  representing interests in the Science
& Technology Fund and First Start Growth Fund series of the  Registrant,  which
opinion  was filed with  Post-Effective  Amendment  No. 45 to the  Registration
Statement.

         We also hereby  consent to the reference to this firm in the Statement
of  Additional  Information  under the heading  "General  Information--Counsel"
which  forms a part of the  Amendment  and to the filing of this  consent as an
exhibit to the Amendment.

                                    Very truly yours,

                                    /S/ GOODWIN, PROCTER & HOAR LLP
                                    -------------------------------
                                    GOODWIN, PROCTER & HOAR LLP

DOCSC\673025.1


                                                                     Exhibit 10

The Shareholders and Board of Directors
USAA Mutual Fund, Inc.:

We consent to the use of our  reports  dated  September  4, 1998,  incorporated
herein by  reference  and to the  references  to our firm  under  the  headings
"Financial  Highlights" in the prospectuses  and "Independent  Auditors" in the
statement of additional information.

                             /S/ KPMG PEAT MARWICK LLP
                             -------------------------
                             KPMG Peat Marwick LLP

San Antonio, Texas
September 30, 1998

<TABLE> <S> <C>

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<CIK> 0000102401
<NAME> USAA MUTUAL FUND, INC.
<SERIES>
   <NUMBER> 1
   <NAME> GROWTH FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
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<INVESTMENTS-AT-VALUE>                       1,404,024
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<ASSETS-OTHER>                                     905
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<PAYABLE-FOR-SECURITIES>                         7,409
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<PAID-IN-CAPITAL-COMMON>                     1,172,991
<SHARES-COMMON-STOCK>                           70,035
<SHARES-COMMON-PRIOR>                           69,756
<ACCUMULATED-NII-CURRENT>                          636
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         38,973
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       190,973
<NET-ASSETS>                                 1,403,573
<DIVIDEND-INCOME>                               12,253
<INTEREST-INCOME>                                2,597
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (14,218)
<NET-INVESTMENT-INCOME>                            632
<REALIZED-GAINS-CURRENT>                       118,346
<APPREC-INCREASE-CURRENT>                    (211,504)
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<ACCUMULATED-GAINS-PRIOR>                       80,105
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<PER-SHARE-NII>                                   0.01
<PER-SHARE-GAIN-APPREC>                         (1.31)
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<PER-SHARE-DISTRIBUTIONS>                       (2.23)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.04
<EXPENSE-RATIO>                                   0.96
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

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<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000102401
<NAME> USAA MUTUAL FUND, INC.
<SERIES>
   <NUMBER> 2
   <NAME> AGGRESSIVE GROWTH FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                          580,617
<INVESTMENTS-AT-VALUE>                         742,640
<RECEIVABLES>                                    7,034
<ASSETS-OTHER>                                     327
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 750,001
<PAYABLE-FOR-SECURITIES>                        10,514
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        3,037
<TOTAL-LIABILITIES>                             13,551
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       482,819
<SHARES-COMMON-STOCK>                           23,287
<SHARES-COMMON-PRIOR>                           22,974
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         91,608
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       162,023
<NET-ASSETS>                                   736,450
<DIVIDEND-INCOME>                                1,118
<INTEREST-INCOME>                                1,444
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (5,444)
<NET-INVESTMENT-INCOME>                        (2,882)
<REALIZED-GAINS-CURRENT>                       125,534
<APPREC-INCREASE-CURRENT>                     (95,797)
<NET-CHANGE-FROM-OPS>                           26,855
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                      (54,316)
<DISTRIBUTIONS-OTHER>                                0
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<NUMBER-OF-SHARES-REDEEMED>                    (8,156)
<SHARES-REINVESTED>                              1,690
<NET-CHANGE-IN-ASSETS>                        (17,534)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                       20,390
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            2,947
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  5,444
<AVERAGE-NET-ASSETS>                           766,655
<PER-SHARE-NAV-BEGIN>                            32.82
<PER-SHARE-NII>                                 (0.12)
<PER-SHARE-GAIN-APPREC>                           1.26
<PER-SHARE-DIVIDEND>                               0.0
<PER-SHARE-DISTRIBUTIONS>                       (2.34)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              31.62
<EXPENSE-RATIO>                                   0.71
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

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<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000102401
<NAME> USAA MUTUAL FUND, INC.
<SERIES>
   <NUMBER> 3
   <NAME> INCOME FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                        1,660,790
<INVESTMENTS-AT-VALUE>                       1,735,269
<RECEIVABLES>                                   17,820
<ASSETS-OTHER>                                     337
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               1,753,426
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        1,852
<TOTAL-LIABILITIES>                              1,852
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     1,656,342
<SHARES-COMMON-STOCK>                          135,993
<SHARES-COMMON-PRIOR>                          132,653
<ACCUMULATED-NII-CURRENT>                          663
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         20,090
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        74,479
<NET-ASSETS>                                 1,751,574
<DIVIDEND-INCOME>                               13,198
<INTEREST-INCOME>                              106,536
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (6,424)
<NET-INVESTMENT-INCOME>                        113,310
<REALIZED-GAINS-CURRENT>                        31,778
<APPREC-INCREASE-CURRENT>                       14,142
<NET-CHANGE-FROM-OPS>                          159,230
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (112,714)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         15,116
<NUMBER-OF-SHARES-REDEEMED>                   (18,992)
<SHARES-REINVESTED>                              7,216
<NET-CHANGE-IN-ASSETS>                          88,593
<ACCUMULATED-NII-PRIOR>                             62
<ACCUMULATED-GAINS-PRIOR>                     (11,690)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            4,108
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  6,424
<AVERAGE-NET-ASSETS>                         1,709,910
<PER-SHARE-NAV-BEGIN>                            12.54
<PER-SHARE-NII>                                   0.85
<PER-SHARE-GAIN-APPREC>                           0.33
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<EXPENSE-RATIO>                                   0.38
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000102401
<NAME> USAA MUTUAL FUND,INC.
<SERIES>
   <NUMBER> 4
   <NAME> MONEY MARKET FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-END>                               JUL-31-1998
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<INVESTMENTS-AT-VALUE>                       2,476,813
<RECEIVABLES>                                   35,871
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<OTHER-ITEMS-LIABILITIES>                       12,546
<TOTAL-LIABILITIES>                             32,535
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     2,491,473
<SHARES-COMMON-STOCK>                        2,491,473
<SHARES-COMMON-PRIOR>                        2,161,691
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                 2,491,473
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              132,399
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (10,060)
<NET-INVESTMENT-INCOME>                        122,339
<REALIZED-GAINS-CURRENT>                             0
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<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (122,339)
<DISTRIBUTIONS-OF-GAINS>                             0
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<NUMBER-OF-SHARES-REDEEMED>                (3,158,728)
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<TABLE> <S> <C>

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<CIK> 0000102401
<NAME> USAA MUTUAL FUND, INC.
<SERIES>
   <NUMBER> 6
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<S>                             <C>
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<TOTAL-LIABILITIES>                              2,847
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<SHARES-COMMON-STOCK>                          127,028
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<ACCUMULATED-NET-GAINS>                         91,722
<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                 2,496,570
<DIVIDEND-INCOME>                              102,739
<INTEREST-INCOME>                                6,156
<OTHER-INCOME>                                       0
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<NET-INVESTMENT-INCOME>                         93,097
<REALIZED-GAINS-CURRENT>                       131,080
<APPREC-INCREASE-CURRENT>                       64,929
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<EQUALIZATION>                                       0
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<DISTRIBUTIONS-OF-GAINS>                     (118,394)
<DISTRIBUTIONS-OTHER>                                0
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<INTEREST-EXPENSE>                                   0
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<PER-SHARE-NAV-BEGIN>                            19.01
<PER-SHARE-NII>                                   0.75
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000102401
<NAME> USAA MUTUAL FUND, INC.
<SERIES>
   <NUMBER> 7
   <NAME> GROWTH & INCOME FUND
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<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-END>                               JUL-31-1998
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<OVERDISTRIBUTION-GAINS>                             0
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<EXPENSE-RATIO>                                   0.85
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000102401
<NAME> USAA MUTUAL FUND, INC.
<SERIES>
   <NUMBER> 8
   <NAME> SHORT-TERM BOND FUND
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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<SHARES-COMMON-STOCK>                           18,131
<SHARES-COMMON-PRIOR>                           13,339
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<OVERDISTRIBUTION-NII>                               0
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<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           489
<NET-ASSETS>                                   181,171
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               10,250
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (768)
<NET-INVESTMENT-INCOME>                          9,482
<REALIZED-GAINS-CURRENT>                           442
<APPREC-INCREASE-CURRENT>                        (936)
<NET-CHANGE-FROM-OPS>                            8,988
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (9,482)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         10,515
<NUMBER-OF-SHARES-REDEEMED>                    (6,550)
<SHARES-REINVESTED>                                827
<NET-CHANGE-IN-ASSETS>                          47,415
<ACCUMULATED-NII-PRIOR>                              0
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