VANGUARD MORGAN GROWTH FUND INC
497, 1995-04-28
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<PAGE>   1
 
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                                   FORM N-1A


                   REGISTRATION STATEMENT (NO. 2-29601) UNDER
                           THE SECURITIES ACT OF 1933


                          PRE-EFFECTIVE AMENDMENT NO.                        /X/
                        POST-EFFECTIVE AMENDMENT NO. 47                      /X/
                                      AND
 
              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940
                                AMENDMENT NO. 49                             /X/


                       VANGUARD/MORGAN GROWTH FUND, INC.
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
 
                     P.O. BOX 2600, MALVERN, PA 19355-0741
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICE)
 
                  REGISTRANT'S TELEPHONE NUMBER (610) 669-1000
 
                         RAYMOND J. KLAPINSKY, ESQUIRE
                                  P.O. BOX 876
                             VALLEY FORGE, PA 19482
 
               IT IS PROPOSED THAT THIS FILING BECOME EFFECTIVE:
 It is hereby requested that this amendment become effective on April 26, 1995,
                     pursuant to paragraph (b) of Rule 485.
 
                 APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
  As soon as practicable after this Registration Statement becomes effective.
 
     REGISTRANT ELECTS TO REGISTER AN INDEFINITE NUMBER OF SHARES PURSUANT TO
REGULATION 24F-2 UNDER THE INVESTMENT COMPANY ACT OF 1940. REGISTRANT FILED ITS
RULE 24F-2 NOTICE FOR THE PERIOD ENDED DECEMBER 31, 1994 ON FEBRUARY 15, 1995.
 
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<PAGE>   2
 
                       VANGUARD/MORGAN INCOME FUND, INC.
 
                             CROSS REFERENCE SHEET
<TABLE>
<CAPTION>
                         FORM N-1A
                        ITEM NUMBER                                   LOCATION IN PROSPECTUS
<C>           <S>                                              <C>
    Item 1.   Cover Page....................................   Cover Page
    Item 2.   Synopsis......................................   Highlights
    Item 3.   Condensed Financial Information...............   Financial Highlights
    Item 4.   General Description of Registrant.............   Investment Objective; Investment
                                                               Limitations; Investment Policies;
                                                               General Information
    Item 5.   Management of the Fund........................   Management of the Fund; Investment
                                                               Adviser
    Item 6.   Capital Stock and Other Securities............   Opening an Account and Purchasing
                                                               Shares; Selling Your Shares; The
                                                               Share Price of the Fund; Dividends,
                                                               Capital Gains, and Taxes; General
                                                               Information
    Item 7.   Purchase of Securities Being Offered..........   Cover Page; Opening an Account and
                                                               Purchasing Shares
    Item 8.   Redemption or Repurchase......................   Selling Your Shares
    Item 9.   Pending Legal Proceedings.....................   Not Applicable
 
<CAPTION>
                         FORM N-1A                                     LOCATION IN STATEMENT
                        ITEM NUMBER                                  OF ADDITIONAL INFORMATION
<C>           <S>                                              <C>
   Item 10.   Cover Page....................................   Cover Page
   Item 11.   Table of Contents.............................   Cover Page
   Item 12.   General Information and History...............   Investment Objective and Policies
   Item 13.   Investment Objective and Policies.............   Investment Objective and Policies;
                                                               Investment Limitations
   Item 14.   Management of the Fund........................   Management of the Fund
   Item 15.   Control Persons and Principal Holders of
              Securities....................................   Management of the Fund
   Item 16.   Investment Advisory and Other Services........   Management of the Fund; Investment
                                                               Advisory Services
   Item 17.   Brokerage Allocation..........................   Not Applicable
   Item 18.   Capital Stock and Other Securities............   Financial Statements
   Item 19.   Purchase, Redemption and Pricing of Securities
              Being Offered.................................   Purchase of Shares; Redemption of
                                                               Shares
   Item 20.   Tax Status....................................   Appendix
   Item 21.   Underwriters..................................   Not Applicable
   Item 22.   Calculations of Yield Quotations of Money
              Market Fund...................................   Not Applicable
   Item 23.   Financial Statements..........................   Financial Statements
</TABLE>
<PAGE>   3
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  [VANGUARD
MORGAN GROWTH 
  FUND LOGO]                                    A Member of The Vanguard Group
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PROSPECTUS--APRIL 26, 1995
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NEW ACCOUNT INFORMATION: INVESTOR INFORMATION DEPARTMENT--1-800-662-7447 (SHIP)
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SHAREHOLDER ACCOUNT SERVICES: CLIENT SERVICES DEPARTMENT--1-800-662-2739 (CREW)
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INVESTMENT
OBJECTIVE
AND POLICIES          Vanguard/Morgan Growth Fund, Inc. (the "Fund") is an
                      open-end diversified investment company that seeks to
                      provide long-term growth of capital. The Fund invests
                      primarily in common stocks. Dividend income is incidental
                      to this objective. There is no assurance that the Fund
                      will achieve its stated objective. Shares of the Fund are
                      neither insured nor guaranteed by any agency of the U.S.
                      Government, including the FDIC.
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OPENING AN
ACCOUNT               To open a regular (non-retirement) account, please
                      complete and return the Account Registration Form. If you
                      need assistance in completing this Form, please call our
                      Investor Information Department. To open an Individual
                      Retirement Account (IRA), please use a Vanguard IRA
                      Adoption Agreement. To obtain a copy of this form, call
                      1-800-662-7447, Monday through Friday, from 8:00 a.m. to
                      9:00 p.m. and Saturday, from 9:00 a.m. to 4:00 p.m.
                      (Eastern time). The minimum initial investment is $3,000
                      or $500 for Uniform Gifts/Transfers to Minors Act
                      accounts). The Fund is offered on a no-load basis (i.e.,
                      there are no sales commissions or 12b-1 fees). However,
                      the Fund incurs expenses for investment advisory,
                      management, administrative, and distribution services.
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ABOUT THIS
PROSPECTUS            This Prospectus is designed to set forth concisely the
                      information you should know about the Fund before you
                      invest. It should be retained for future reference. A
                      "Statement of Additional Information" containing
                      additional information about the Fund has been filed with
                      the Securities and Exchange Commission. This Statement is
                      dated April 26, 1995 and has been incorporated by
                      reference into this Prospectus. A copy may be obtained
                      without charge by writing to the Fund or by calling the
                      Investor Information Department.
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TABLE OF CONTENTS
 
<TABLE>
<S>                                        <C>                                        <C>
                                 Page                                       Page                                       Page
Fund Expenses ......................2      Investment Limitations ............ 8     SHAREHOLDER GUIDE
Financial Highlights ...............2      Management of the Fund ...........  8     Opening an Account and
Yield and Total Return .............3      Investment Advisers ............... 9        Purchasing Shares ............... 16
        FUND INFORMATION                   Performance Record ............... 12     When Your Account Will
Investment Objective .............. 4      Dividends, Capital Gains                     Be Credited ..................... 19
Investment Policies ................4         and Taxes ......................13      Selling Your Shares ............... 19
Investment Risks ...................5      The Share Price of the                     Exchanging Your Shares ............ 21
Who Should Invest ..................5         Fund .......................... 14      Important Information About
Implementation of Policies .........6      General Information .............. 15        Telephone Transactions .......... 23
                                                                                      Transferring
                                                                                         Registration ................... 23
                                                                                      Other Vanguard Services ........... 24
</TABLE>
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THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE COMMISSION PASSED UPON THE ACCURACY OR
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.
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<PAGE>   4
 
FUND EXPENSES         The following table illustrates all expenses and fees that
                      you would incur as a shareholder of the Fund. The expenses
                      and fees set forth in the table are for the 1994 fiscal
                      year.
 
<TABLE>
<CAPTION>
                                                   SHAREHOLDER TRANSACTION EXPENSES
                                <S>                                                                <C>   
                                -----------------------------------------------------------------------
                                Sales Load Imposed on Purchases................................    None
                                Sales Load Imposed on Reinvested Dividends.....................    None
                                Redemption Fees................................................    None
                                Exchange Fees..................................................    None
</TABLE>
 
<TABLE>
<CAPTION>
                                                    ANNUAL FUND OPERATING EXPENSES
                                <S>                                                       <C>     <C>
                                -----------------------------------------------------------------------
                                Management & Administrative Expenses...........................   0.32%
                                Investment Advisory Fees.......................................   0.14
                                12b-1 Fees.....................................................   None
                                Other Expenses
                                  Distribution Costs....................................  0.02%
                                  Miscellaneous Expenses................................  0.02
                                                                                          -----
                                Total Other Expenses...........................................   0.04
                                                                                                  -----
                                         TOTAL OPERATING EXPENSES..............................   0.50%
                                                                                                  -----
                                                                                                  -----
</TABLE>
 
                      The purpose of this table is to assist you in
                      understanding the various costs and expenses that you
                      would bear directly or indirectly as an investor in the
                      Fund.
 
                      The following example illustrates the expenses that you
                      would incur on a $1,000 investment over various periods,
                      assuming (1) a 5% annual rate of return and (2) redemption
                      at the end of each period. As noted in the table above,
                      the Fund charges no redemption fees of any kind.
 
<TABLE>
<CAPTION>
                        1 YEAR     3 YEARS     5 YEARS     10 YEARS
                        -------    --------    --------    ---------
                          <S>        <C>         <C>         <C>
                          $5         $16         $28          $63
</TABLE>
 
                      THIS EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF
                      PAST OR FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES
                      MAY BE HIGHER OR LOWER THAN THOSE SHOWN.
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FINANCIAL
HIGHLIGHTS            The following financial highlights for a share outstanding
                      throughout each period, insofar as they relate to each of
                      the five years in the period ended December 31, 1994, have
                      been audited by Price Waterhouse LLP, independent
                      accountants, whose report thereon was unqualified. This
                      information should be read in conjunction with the Fund's
                      financial statements and notes thereto which are
                      incorporated by reference in the Statement of Additional
                      Information and in this Prospectus, and which appear,
                      along with the report of Price Waterhouse LLP, in the
                      Fund's 1994 Annual Report to the Shareholders. For a more
                      complete discussion of the Fund's performance, please see
                      the Fund's 1994 Annual Report to Shareholders which may be
                      obtained without charge by writing to the Fund or by
                      calling our Investor Information Department at
                      1-800-662-7447.
 
                                        2
<PAGE>   5
 
<TABLE>
<CAPTION>
                                                                    YEAR ENDED DECEMBER 31,
                             ------------------------------------------------------------------------------------------------------
                              1994      1993      1992      1991      1990      1989      1988      1987      1986      1985
<S>                           <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>   
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NET ASSET VALUE, BEGINNING
  OF
  YEAR.....................  $12.01    $12.65    $12.20    $10.40    $11.72    $10.27    $ 9.39    $11.50    $13.82    $11.45
                             ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
INVESTMENT OPERATIONS
  Net Investment Income....     .14       .18       .18       .29       .32       .28       .25       .23       .21       .23
  Net Realized and
    Unrealized
    Gain (Loss) on
    Investments............    (.34)      .71       .97      2.66      (.50)     2.04      1.85       .31       .78      2.99
                             ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
    TOTAL FROM INVESTMENT
      OPERATIONS...........    (.20)      .89      1.15      2.95      (.18)     2.32      2.10       .54       .99      3.22
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DISTRIBUTIONS
  Dividends from Net
    Investment Income......    (.14)     (.18)     (.18)     (.29)     (.34)     (.28)     (.24)     (.20)     (.43)     (.25)
  Distributions from
    Realized Capital
    Gains..................    (.31)    (1.35)     (.52)     (.86)     (.80)     (.59)     (.98)    (2.45)    (2.88)     (.60)
                             ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
    TOTAL DISTRIBUTIONS....    (.45)    (1.53)     (.70)    (1.15)    (1.14)     (.87)    (1.22)    (2.65)    (3.31)     (.85)
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NET ASSET VALUE,
  END OF YEAR............... $11.36    $12.01    $12.65    $12.20    $10.40    $11.72    $10.27    $ 9.39    $11.50    $13.82
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- -----------------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN...............   (1.67)%    7.32%     9.54%    29.33%    (1.51)%   22.66%    22.34%     5.02%     7.83%    30.29%
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RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Year
  (Millions)...............  $1,075    $1,135    $1,116      $957      $697      $733      $622      $538      $594      $665
Ratio of Expenses to
  Average
  Net Assets...............     .50%      .49%      .48%      .46%      .55%      .51%      .55%      .46%      .54%      .60%
Ratio of Net Investment
  Income to Average Net
  Assets...................    1.15%     1.36%     1.51%     2.36%     2.77%     2.38%     2.20%     1.52%     1.49%     1.96%
Portfolio Turnover Rate....      84%       72%       64%       52%       73%       27%       32%       43%       31%       42%
</TABLE>
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YIELD AND
TOTAL RETURN          From time to time the Fund may advertise its yield and
                      total return. Both yield and total return figures are
                      based on historical earnings and are not intended to
                      indicate future performance. The "total return" of the
                      Fund refers to the average annual compounded rates of
                      return over one-, five- and ten-year periods or for the
                      life of the Fund (as stated in the advertisement) that
                      would equate an initial amount invested at the beginning
                      of a stated period to the ending redeemable value of the
                      investment, assuming the reinvestment of all dividend and
                      capital gains distributions.
 
                      In accordance with industry guidelines set forth by the
                      U.S. Securities and Exchange Commission, the "30-day
                      yield" of the Fund is calculated by dividing net
                      investment income per share earned during a 30-day period
                      by the net asset value per share on the last day of the
                      period. Net investment income includes interest and
                      dividend income earned on the Fund's securities; it is net
                      of all expenses and all recurring and nonrecurring charges
                      that have been applied to all shareholder accounts. The
                      yield calculation assumes that net investment income
                      earned over 30 days is compounded monthly for six months
                      and then annualized. Methods used to calculate advertised
                      yields are standardized for all stock and bond mutual
                      funds. However, these methods differ from the accounting
                      methods used by the Fund to maintain its books and
                      records, and so the advertised 30-day yield may not fully
                      reflect the income paid to your own account.
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                                        3
<PAGE>   6
INVESTMENT
OBJECTIVE             The Fund is an open-end diversified investment company.
                      The objective of the Fund is to provide long-term growth
                      of capital by investing primarily in common stocks.
                      Dividend income is incidental to this objective. There is
                      no assurance that the Fund will achieve its stated
                      objective.
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INVESTMENT
POLICIES

THE FUND INVESTS
PRIMARILY IN
"GROWTH STOCKS"       The Fund invests primarily in the equity securities of
                      growth companies. Under normal circumstances, at least 65%
                      of the Fund's assets will be invested in such securities.
                      The Fund is managed without regard to tax ramifications.
                      The Fund will generally invest in a diversified portfolio
                      of common stocks but may also, from time to time, hold
                      securities that are convertible into common stocks.
 
                      The Fund is expected to invest a majority of its assets in
                      "established growth companies" -- i.e., larger
                      capitalization firms that have generally exhibited above-
                      average rates of growth in sales and earnings over an
                      extended period. The Fund may also invest in "emerging
                      growth companies" -- expanding firms with generally
                      smaller stock market capitalizations. Finally, the Fund
                      may hold investments in "cyclical growth and other
                      companies." These are firms which, while they may not have
                      a history of stable long-term growth, are nonetheless
                      expected to represent attractive investments.
 
                      The Fund's assets are managed by three unaffiliated
                      investment advisers and by Vanguard's Core Management
                      Group. Each adviser independently chooses common stock
                      investments for the Fund. Wellington Management Company,
                      which is currently responsible for approximately 40% of
                      the Fund's investments, utilizes traditional methods of
                      security selection, including fundamental company research
                      and relative valuation techniques, in selecting growth
                      stocks for the Fund. Husic Capital Management, which
                      manages approximately 13% of the Fund, applies a "classic"
                      fundamental investment strategy, with an approach that
                      includes investment themes, candidate universes, and
                      event-driven hurdles as key elements. In contrast,
                      Franklin Portfolio Associates Trust ("FPA") and Vanguard's
                      Core Management Group, which are responsible for
                      approximately 33% and 10%, respectively, of the Fund's
                      investments are "quantitative" investment managers. They
                      utilize computerized techniques designed to track -- and,
                      if possible, outperform -- the returns of a specific
                      standard. For the Fund, the standard is the Growth Fund
                      Stock Index, a benchmark calculated by Morningstar. The
                      Index is a measure of the composite performance of the
                      common stock holdings of the 50 largest growth mutual
                      funds.
 
                      In addition to investing in common stocks, the Fund is
                      also authorized to invest in certain short-term fixed
                      income securities as cash reserves and to use stock index
                      futures and options to a limited extent. See
                      "Implementation of Policies" for a description of these
                      and other investment practices of the Fund.
 
                      The investment objective and policies of the Fund are not
                      fundamental and so may be changed by the Board of
                      Directors without shareholder approval. However,
                      shareholders would be notified prior to a material change
                      in either.
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                                        4
<PAGE>   7
 
INVESTMENT
RISKS

THE FUND IS SUBJECT
TO STOCK MARKET RISK  As a mutual fund investing primarily in common stocks, the
                      Fund is subject to market risk -- i.e., the possibility
                      that common stock prices will decline over short or even
                      extended periods. The U.S. stock market tends to be
                      cyclical, with periods when stock prices generally rise
                      and periods when prices generally decline.
 
                      To illustrate the volatility of stock prices, the
                      following table sets forth the extremes for stock market
                      returns as well as the average return for the period from
                      1926 to 1994, as measured by the Standard & Poor's 500
                      Composite Stock Price Index:
 
<TABLE>
<CAPTION>
                                           U.S. STOCK MARKET RETURNS (1926-1994)
                                                 OVER VARIOUS TIME HORIZONS

                                            1 YEAR        5 YEARS       10 YEARS       20 YEARS
                                            -------       -------       --------       --------
                             <S>             <C>           <C>            <C>            <C>
                             Best            +53.9%        +23.9%         +20.1%         +16.9%
                             Worst           -43.3         -12.5          - 0.9          + 3.1
                             Average         +12.2         +10.2          +10.7          +10.7
</TABLE>
 
                      As shown, common stocks have provided annual total returns
                      (capital appreciation plus dividend income) averaging
                      +10.7% for all 10-year periods from 1926 to 1994. Average
                      return may not be useful for forecasting future returns in
                      any particular period, as stock returns are quite volatile
                      from year to year.
 
                      The chart above should not be viewed as a representation
                      of future investment performance of the stock market or
                      the Fund. The illustrated returns represent historical
                      investment performance, which may be a poor guide to
                      future returns. Also, stock market indexes are based on
                      unmanaged portfolios of securities before transaction
                      costs and other expenses. Such costs reduce the relative
                      performance of the Fund and other "real world" portfolios.
                      Finally, given its emphasis on "growth stock" investments,
                      the Fund is likely to differ significantly in terms of
                      portfolio composition and investment performance from
                      broad market averages like the S&P 500.
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WHO SHOULD
INVEST

INVESTORS SEEKING
LONG-TERM GROWTH      The Fund is designed for investors who have the
                      perspective, patience and financial ability to assume
                      above-average interim investment risk in pursuit of
                      long-term capital growth. Since the Fund will focus on
                      common stocks that offer below-average levels of current
                      income, greater-than-average investment risk -- for a
                      common stock fund -- is likely. The Fund's share price is
                      expected to be volatile.
 
                      No assurance can be given that the Fund will attain its
                      objective or that shareholders will be protected from the
                      risk of loss that is inherent in equity investing.
                      Investors may wish to reduce the potential risk of
                      investing in the Fund by purchasing shares on a periodic
                      basis (dollar-cost averaging) rather than making an
                      investment in one lump sum.
 
                      The Fund is intended to be a long-term investment vehicle
                      and is not designed to provide investors with a means of
                      speculating on short-term market movements. Investors who
                      engage in excessive account activity generate additional
                      costs which are borne by all of the Fund's shareholders.
                      In order to minimize such costs the Fund has adopted the
                      following policies. The Fund reserves the right to reject
                      any
 
                                        5
<PAGE>   8
                      purchase request (including exchange purchases from other
                      Vanguard portfolios) that is reasonably deemed to be
                      disruptive to efficient portfolio management, either
                      because of the timing of the investment or previous
                      excessive trading by the investor. Additionally, the Fund
                      has adopted exchange privilege limitations as described in
                      the section "Exchange Privilege Limitations." Finally, the
                      Fund reserves the right to suspend the offering of its
                      shares.
 
                      Investors should not consider the Fund a complete
                      investment program, but should also maintain holdings in
                      investments with different risk characteristics, such as
                      bonds and money market instruments. Investors may also
                      wish to complement an investment in the Fund with other
                      types of common stock investments.
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IMPLEMENTATION
OF POLICIES

A PORTION OF THE
FUND'S ASSETS ARE
MANAGED USING
QUANTITATIVE
TECHNIQUES            The Fund follows a number of distinctive investment
                      practices in an effort to achieve its investment
                      objective.
 
                      Two of the Fund's investment advisers, Franklin Portfolio
                      Associates Trust ("FPA") and Vanguard's Core Management
                      Group, use quantitative investment techniques in managing
                      their respective portions of the Fund's common stock
                      investments. For the portfolio of securities they manage,
                      FPA and Vanguard's Core Management Group independently
                      seek to track and, if possible, outperform the investment
                      returns of the Growth Fund Stock Index.
 
                      The Growth Fund Stock Index (the "Index") represents the
                      composite common stock portfolio of the 50 largest growth
                      mutual funds, as calculated by Morningstar, Inc.
                      ("Morningstar"), an independent company which provides
                      mutual fund statistics. The 50 mutual funds included in
                      that Index are determined annually (as of December 31) by
                      Morningstar. For the two quantitative investment managers
                      (FPA and Vanguard's Core Management Group), the Index is
                      an essential tool in developing portfolios that will be
                      designed to track and, hopefully, outperform the Index.
                      For Wellington Management Company, the composition of the
                      Index serves as a guideline for setting portfolio policy.
                      Additionally, for the Fund's unaffiliated investment
                      advisers, the Index is utilized as a benchmark for
                      determining incentive/penalty investment advisory fees.
                      See "Investment Advisers" and the Statement of Additional
                      Information for further information on the Index and its
                      use as a benchmark for incentive/penalty fees.
 
THE FUND MAY INVEST
IN SHORT-TERM FIXED
INCOME SECURITIES     Although it normally seeks to remain substantially fully
                      invested in equity securities, the Fund may invest
                      temporarily in certain short-term fixed income securities.
                      Such securities may be used to invest uncommitted cash
                      balances, to maintain liquidity to meet shareholder
                      redemptions, or to take a temporarily defensive position
                      against potential stock market declines. These securities
                      include: obligations of the United States Government and
                      its agencies or instrumentalities; commercial paper, bank
                      certificates of deposit, and bankers' acceptances; and
                      repurchase agreements collateralized by these securities.
                      Approximately 5% of the Fund's net assets are expected to
                      be held as cash reserves, which will be managed by The
                      Vanguard Group, Inc. at no charge to the Fund.
 
                                        6
<PAGE>   9
 
THE FUND MAY INVEST
IN SECURITIES OF
FOREIGN ISSUERS
                      The Fund may hold securities of foreign issuers, but all
                      such securities must be denominated in U.S. dollars.
                      Securities of foreign issuers may trade in U.S. or foreign
                      securities markets. Securities of foreign issuers may
                      involve investment risks that are different from those of
                      domestic issuers. Such risks include the effect of foreign
                      economic policies and conditions, future political and
                      economic developments, and the possible imposition of
                      exchange controls or other foreign governmental
                      restrictions on foreign debt issuers. There may also be
                      less publicly available information about a foreign issuer
                      than a domestic issuer of securities. Foreign issuers are
                      generally not subject to the uniform accounting, auditing
                      and financial reporting standards that apply to domestic
                      issuers. Also, foreign debt markets may be characterized
                      by lower liquidity, greater price volatility, and higher
                      transactions costs. Additionally, it may be difficult to
                      obtain or enforce a legal judgment in a foreign court.
 
THE FUND MAY USE
FUTURES CONTRACTS
AND OPTIONS           The Fund may utilize stock futures contracts and options
                      to a limited extent. Specifically, the Fund may enter into
                      futures contracts provided that not more than 5% of its
                      assets are required as a futures contract deposit. In
                      addition, the Fund may enter into futures contracts and
                      options transactions only to the extent that obligations
                      under such contracts or transactions represent not more
                      than 20% of the Fund's assets.
 
FUTURES CONTRACTS AND
OPTIONS POSE CERTAIN
RISKS                 The primary risks associated with the use of futures
                      contracts and options are: (i) imperfect correlation
                      between the change in market value of the stocks held by
                      the Fund and the prices of futures contracts and options;
                      and (ii) possible lack of a liquid secondary market for a
                      futures contract and the resulting inability to close a
                      futures position prior to its maturity date. The risk of
                      imperfect correlation will be minimized by investing only
                      in those contracts whose behavior is expected to resemble
                      that of the Fund's underlying securities. The risk that
                      the Fund will be unable to close out a futures position
                      will be minimized by entering into such transactions on a
                      national exchange with an active and liquid secondary
                      market.
 
                      The risk of loss in trading futures contracts in some
                      strategies can be substantial, due both to the low margin
                      deposits required and the extremely high degree of
                      leverage involved in futures pricing. As a result, a
                      relatively small price movement in a futures contract may
                      result in immediate and substantial loss (or gain) to the
                      investor. When investing in futures contracts, the Fund
                      will segregate cash or cash equivalents in the amount of
                      the underlying obligation.
 
                      Futures contracts and options may be used for several
                      reasons: to maintain cash reserves while simulating full
                      investment, to facilitate trading, to reduce transaction
                      costs, or to seek higher investment returns when a futures
                      contract is priced more attractively than the underlying
                      equity security or index. While futures contracts and
                      options can be used as leveraged investments, the Fund may
                      not use futures contracts or options transactions to
                      leverage its net assets.
 
THE FUND MAY LEND
ITS SECURITIES        The Fund may lend its investment securities on a
                      short-term or long-term basis to qualified institutional
                      investors for the purpose of realizing additional income.
                      Loans of securities by the Fund will be collateralized by
                      cash, letters
 
                                        7
<PAGE>   10
 
                      of credit, or securities issued or guaranteed by the U.S.
                      Government or its agencies. The collateral will equal at
                      least 100% of the current market value of the loaned
                      securities.
 
BORROWING             The Fund may borrow money, subject to the limits set forth
                      in the section "Investment Limitations," for temporary or
                      emergency purposes, including the meeting of redemption
                      requests which might otherwise require the untimely
                      disposition of securities.
 
PORTFOLIO TURNOVER IS
NOT EXPECTED TO
EXCEED 100%           Although it generally seeks to invest for the long term,
                      the Fund retains the right to sell securities irrespective
                      of how long they have been held. It is anticipated that
                      the annual portfolio turnover of the Fund will not exceed
                      100%. A turnover rate of 100% would occur, for example, if
                      all of the securities of the Fund were replaced within one
                      year.
- --------------------------------------------------------------------------------
INVESTMENT
LIMITATIONS

THE FUND HAS ADOPTED
CERTAIN FUNDAMENTAL
LIMITATIONS           The Fund has adopted certain limitations on its investment
                      practices. Specifically, the Fund will not:
 
                      (a)  with respect to 75% of the value of its total assets,
                           invest more than 5% of its assets in the securities
                           of any single company;
 
                      (b)  with respect to 75% of the value of its total assets,
                           purchase more than 10% of the voting securities of
                           any issuer;
 
                      (c)  invest more than 25% of its assets in any one
                           industry; and
 
                      (d)  borrow money, except from banks (or through
                           repurchase agreements) for temporary or emergency
                           (not leveraging) purposes, and then not in an amount
                           exceeding 10% of the value of the Fund's net assets
                           at the time the borrowing is made. Whenever borrowing
                           exceeds 5% of the value of the Fund's net assets, the
                           Fund will not make any additional investments.
 
                      These investment limitations are considered at the time
                      investment securities are purchased. The limitations
                      described here and in the Statement of Additional
                      Information may be changed only with the approval of a
                      majority of the Fund's shareholders.
- --------------------------------------------------------------------------------
MANAGEMENT
OF THE FUND

VANGUARD ADMINISTERS
AND DISTRIBUTES THE
FUND                  The Fund is a member of The Vanguard Group of Investment
                      Companies, a family of more than 30 investment companies
                      with more than 80 distinct mutual fund portfolios and
                      total assets in excess of $130 billion. Through their
                      jointly-owned subsidiary, The Vanguard Group, Inc.
                      ("Vanguard"), the Fund and the other funds in the Group
                      obtain at cost virtually all of their corporate
                      management, administrative and distribution services.
                      Vanguard also provides investment advisory services on an
                      at-cost basis to certain Vanguard funds. As a result of
                      Vanguard's unique corporate structure, the Vanguard funds
                      have costs substantially lower than those of most
                      competing mutual funds. In 1994, the average expense ratio
                      (annual costs including advisory fees divided by total net
                      assets) for the Vanguard funds amounted to approximately
                      .30% compared to an average of 1.05% for the mutual fund
                      industry (data provided by Lipper Analytical Services).
 
                                        8
<PAGE>   11
 
                      The Officers of the Fund manage its day-to-day operations
                      and are responsible to the Fund's Board of Directors. The
                      Directors set broad policies for the Fund and choose its
                      Officers. A list of the Directors and Officers of the Fund
                      and a statement of their present positions and principal
                      occupations during the past five years can be found in the
                      Statement of Additional Information.
 
                      Vanguard employs a supporting staff of management and
                      administrative personnel needed to provide the requisite
                      services to the funds and also furnishes the funds with
                      necessary office space, furnishings and equipment. Each
                      fund pays its share of Vanguard's net expenses, which are
                      allocated among the funds under methods approved by the
                      Board of Directors (Trustees) of each fund. In addition,
                      each fund bears its own direct expenses, such as legal,
                      auditing and custodian fees.
 
                      Vanguard provides distribution and marketing services to
                      the funds. The funds are available on a no-load basis
                      (i.e., there are no sales commissions or 12b-1 fees).
                      However, each fund bears its share of the Group's
                      distribution costs.
- --------------------------------------------------------------------------------
INVESTMENT
ADVISERS

THE FUND'S
ASSETS ARE
MANAGED BY
FOUR ADVISERS         The Fund currently has four investment advisers:
                      Wellington Management Company ("WMC"), 75 State Street,
                      Boston, MA 02109; Franklin Portfolio Associates Trust
                      ("FPA"), One Post Office Square 3660, Boston, MA 02109;
                      Husic Capital Management ("Husic"), 555 California Street,
                      Suite 2900, San Francisco, California 94104, and
                      Vanguard's Core Management Group. Prior to April 24, 1990,
                      WMC was the sole investment adviser to the Fund (then
                      known as W.L. Morgan Growth Fund). FPA was added as an
                      adviser in 1990, while Husic and Core Management were
                      added in 1993.
 
                      The proportion of the net assets of the Fund managed by
                      each adviser is established by the Board of Directors, and
                      may be changed in the future as circumstances warrant.
                      Presently, WMC is responsible for approximately 40% of the
                      Fund's investments; FPA, Husic and Vanguard's Core
                      Management Group are responsible for approximately 33%,
                      13% and 10%, respectively. (The cash portion of the Fund's
                      net assets is managed by The Vanguard Group, Inc. at no
                      charge to the Fund.)
 
                      The Fund has entered into investment advisory agreements
                      with WMC, FPA, and Husic which provide that the advisers
                      manage the investment and reinvestment of the Fund's
                      assets and continuously review, supervise and administer
                      the Fund's investment program. The advisers discharge
                      their responsibilities subject to the control of the
                      Officers and Directors of the Fund.
 
. . .WELLINGTON
MANAGEMENT
COMPANY (WMC)         WMC is a professional investment advisory firm which
                      globally provides services to investment companies,
                      institutions, and individuals. Among the clients of WMC
                      are more than 10 of the investment companies of The
                      Vanguard Group. As of December 31, 1994, WMC held
                      discretionary management authority with respect to more
                      than $80 billion of assets. WMC and its predecessor
                      organizations have provided advisory services to
                      investment companies since 1933 and to investment
                      counseling clients since 1960.
 
                                        9
<PAGE>   12
 
                      Robert D. Rands, Senior Vice President of WMC, serves as
                      portfolio manager of the assets of the Fund assigned to
                      WMC. Mr. Rands has been employed by WMC for 16 years and
                      has served as portfolio manager for the Fund since
                      February of 1994. In managing the assets of the Fund
                      assigned to WMC Mr. Rands is supported by research and
                      other investment services provided by the professional
                      staff of WMC.
 
                      The Fund pays WMC a basic advisory fee calculated by
                      applying varying percentage rates to the average net
                      assets of the Fund managed by WMC. The basic fee schedule
                      is as follows:
 
<TABLE>
<CAPTION>
                            NET ASSETS         RATE
                        ------------------    -------
                        <S>                   <C>
                        First $50 million      0.325%
                        Next $100 million      0.225%
                        Over $150 million      0.150%
</TABLE>
 
                      This basic advisory fee may be increased or decreased by
                      applying an adjustment formula ("incentive/penalty fee")
                      based on WMC's investment performance relative to the
                      investment record of Growth Fund Stock Index. Under the
                      incentive/penalty fee schedule, the basic fee payable to
                      WMC may be increased or decreased by as much as .075%
                      depending on the investment performance of the equity
                      investments managed by WMC.
 
                      To assess the performance of its advisers relative to
                      comparable "growth stock" investments, the Fund has
                      adopted as a benchmark for incentive/penalty fees the
                      Growth Fund Stock Index, an index of the equity holdings
                      of the 50 largest growth stock mutual funds.
 
. . .FRANKLIN PORTFOLIO
ASSOCIATES (FPA)      FPA is a professional investment advisory firm which
                      specializes in the management of common stock portfolios
                      through the use of quantitative investment models. Founded
                      in 1982, FPA, a Massachusetts business trust, is a
                      wholly-owned subsidiary of Mellon Financial Services
                      Corporation #1, which itself is a wholly-owned subsidiary
                      of Mellon Bank Corporation. As of December 31, 1994, FPA
                      provided investment advisory services with respect to
                      approximately $6.64 billion of client assets, including
                      $5.9 million in assets for Vanguard Quantitative
                      Portfolios, Inc., another mutual fund member of The
                      Vanguard Group.
 
                      FPA employs proprietary computer models in selecting
                      individual equity securities and in structuring investment
                      portfolios for its clients, including the Fund. John J.
                      Nagorniak, President of FPA, has been designated as the
                      portfolio manager of the assets of the Fund assigned to
                      FPA; he is responsible for overseeing the application of
                      FPA's quantitative techniques to those assets. Mr.
                      Nagorniak and the other investment principals of FPA are
                      responsible for the ongoing development and enhancement of
                      FPA's quantitative investment techniques.
 
                                       10
<PAGE>   13
 
                      The Fund pays FPA a basic advisory fee calculated by
                      applying varying percentage rates to the average net
                      assets of the Fund managed by FPA. The basic fee schedule
                      is as follows:
 
<TABLE>
<CAPTION>
                            NET ASSETS         RATE
                        ------------------    ------
                        <S>                   <C>
                        First $100 million     0.25%
                        Next $200 million      0.20%
                        Over $300 million      0.15%
</TABLE>
 
                      This basic advisory fee may be increased or decreased by
                      applying an incentive/ penalty fee based on FPA's
                      investment performance relative to the investment record
                      of the Growth Fund Stock Index. Under the
                      incentive/penalty fee schedule, the basic fee payable to
                      FPA may be increased or decreased by as much as .10%
                      depending on the investment performance of the equity
                      investments managed by FPA.
 
. . .AND HUSIC CAPITAL
MANAGEMENT (HUSIC)    Vanguard/Morgan Growth Fund also employs Husic Capital
                      Management ("Husic"), 555 California Street, Suite 2900,
                      San Francisco, California 94104 as an investment adviser
                      for approximately 13% of its investments.
 
                      For the services provided by Husic under the investment
                      advisory agreement the Fund will pay Husic a basic fee at
                      the end of each fiscal quarter, calculated by applying a
                      quarterly rate, based on the following annual percentage
                      rates, to the average month-end net assets of the Husic
                      Portfolio for the quarter:
 
<TABLE>
<CAPTION>
                            NET ASSETS         RATE
                        ------------------    ------
                        <S>                   <C>
                        First $25 million      0.40%
                        Next $125 million      0.35%
                        Next $350 million      0.25%
                        Next $500 million      0.20%
                        Over $1 billion        0.15%
</TABLE>
 
                      Effective with the quarter ending September 30, 1994, the
                      basic fee paid to Husic, as provided above, may be
                      increased or decreased by applying an incentive/penalty
                      fee based on the investment performance of the Husic
                      Portfolio relative to the investment record of the Growth
                      Fund Stock Index. Under the incentive/penalty fee
                      schedule, the basic fee payable to Husic may be increased
                      or decreased by as much as 75% of the basic fee depending
                      on the investment performance of the equity investment
                      managed by Husic.
 
                      Under rules of the Securities and Exchange Commission, the
                      incentive/penalty fee structure will not be fully operable
                      until the quarter ending September 30, 1996, and, until
                      that date, will be calculated according to certain
                      transition rules. See the Statement of Additional
                      Information for a detailed description of the incentive/
                      penalty fee schedule for Husic and the applicable
                      transition rules.
 
                      For the fiscal year ended December 31, 1994, the aggregate
                      investment advisory fees paid by Vanguard/Morgan Growth
                      Fund represented an effective annual rate of .19 of 1% of
                      average net assets, before a net decrease of .05 of 1%
                      based on
 
                                       11
<PAGE>   14
 
                      performance. The investment advisory fees paid by the Fund
                      for this period to WMC, FPA and Husic represented an
                      effective annual rate of .12, .19 and .23 of 1%,
                      respectively, of the average net assets managed by WMC,
                      FPA and Husic.
 
VANGUARD MANAGES
A PORTION OF THE
FUND'S ASSETS ON
AN AT-COST BASIS      Vanguard's Core Management Group provides investment
                      advisory services on an at-cost basis with respect to a
                      portion of the Fund's assets (currently approximately
                      10%). The Core Management Group also provides investment
                      advisory services to several Vanguard Funds and to several
                      indexed separate accounts. Total assets under management
                      by the Core Management Group were approximately $18
                      billion as of December 31, 1994. The portion of the Fund
                      allocated to the Core Management Group is managed using
                      computerized, quantitative techniques based on a value
                      index constructed to approximate the aggregate fundamental
                      characteristics of a typical broadly diversified growth
                      fund such as Vanguard/Morgan Growth Fund. For further
                      information concerning the index, please refer to the
                      Statement of Additional Information. The Core Management
                      Group is supervised by the Officers of the Fund.
 
                      WMC, FPA, Husic and Vanguard's Core Management Group are
                      authorized to select brokers or dealers to execute the
                      purchase and sale of the Fund's portfolio securities, and
                      direct the advisers to use their best efforts to obtain
                      the best available price and most favorable execution with
                      respect to all transactions. The full range and quality of
                      brokerage services available are considered in making
                      their determinations.
 
                      The Fund has authorized WMC, FPA, Husic and Vanguard's
                      Core Management Group to pay higher commissions in
                      recognition of brokerage services felt necessary for the
                      achievement of better execution, provided the advisers
                      believe this to be in the best interests of the Fund.
                      Although the Fund does not market its shares through
                      intermediary brokers or dealers, the Fund's advisers may
                      place orders with qualified broker-dealers who recommend
                      the Fund to clients if the Officers of the Fund believe
                      that the quality of the transaction and the commission are
                      comparable to what they would be with other qualified
                      brokerage firms.
 
                      The Fund's Board of Directors may, without the approval of
                      shareholders, provide for: (a) the employment of a new
                      investment adviser pursuant to the terms of a new advisory
                      agreement either as a replacement for an existing adviser
                      or as an additional adviser; (b) a change in the terms of
                      an advisory agreement; and (c) the continued employment of
                      an existing adviser on the same advisory contract terms
                      where a contract has been assigned because of a change in
                      control of the adviser. Any such change will only be made
                      upon not less than 30 days' prior written notice to
                      shareholders of the Fund which shall include substantially
                      the information concerning the adviser that would have
                      normally been included in a proxy statement.
- --------------------------------------------------------------------------------
 
PERFORMANCE
RECORD                The table on page 13 provides investment results for the
                      Fund for several periods throughout the Fund's lifetime.
                      The results shown represent "total return" investment
                      performance, which assumes the reinvestment of all capital
                      gains and income dividends for the indicated periods. Also
                      included is comparative information with respect to the
                      unmanaged Standard & Poor's 500 Composite Stock Price
 
                                       12
<PAGE>   15
 
                      Index, a widely-used barometer of stock market activity,
                      and the Consumer Price Index, a statistical measure of
                      changes in the prices of goods and services. The table
                      does not make any allowance for federal, state or local
                      income taxes, which shareholders must pay on a current
                      basis.
 
                      The results should not be considered a representation of
                      the total return from an investment made in the Fund
                      today. This information is provided to help investors
                      better understand the Fund and may not provide a basis for
                      comparison with other investments or mutual funds which
                      use a different method to calculate performance.
 
<TABLE>
<CAPTION>
                                                    AVERAGE ANNUAL RETURN FOR
                                                   VANGUARD/MORGAN GROWTH FUND
                                           -------------------------------------------
                        FISCAL PERIODS     VANGUARD/MORGAN     S&P 500      CONSUMER
                        ENDED 12/31/94       GROWTH FUND        INDEX      PRICE INDEX
                        --------------     ---------------     -------     -----------
                        <S>                      <C>            <C>            <C>
                        1 Year                  - 1.7%          + 1.3%         +2.7%
                        5 Years                 + 8.0           + 8.7          +3.5
                        10 Years                +12.5           +14.3          +3.6
                        Lifetime*               +10.7           +10.1          +5.7
                        * December 31, 1968 to December 31, 1994.
</TABLE>
- --------------------------------------------------------------------------------
DIVIDENDS,
CAPITAL GAINS
AND TAXES

THE FUND PAYS
DIVIDENDS AND ANY
CAPITAL GAINS
ANNUALLY              The Fund expects to pay dividends annually from ordinary
                      income. Net capital gains distributions, if any, will also
                      be made annually. The Fund is managed without regard to
                      tax ramifications.
 
                      Dividend and capital gains distributions may be
                      automatically reinvested or received in cash. See
                      "Choosing a Distribution Option" for a description of
                      these distribution methods.
 
                      In order to satisfy certain requirements of the Tax Reform
                      Act of 1986, the Fund may declare special year-end
                      dividend and capital gains distributions during December.
                      Such distributions, if received by shareholders by January
                      31, are deemed to have been paid by the Fund and received
                      by shareholders on December 31 of the prior year.
 
                      The Fund intends to continue to qualify for taxation as a
                      "regulated investment company" under the Internal Revenue
                      Code so that it will not be subject to federal income tax
                      to the extent its income is distributed to shareholders.
                      Dividends paid by the Fund from net investment income and
                      net short-term capital gains, whether received in cash or
                      reinvested in additional shares, will be taxable to
                      shareholders as ordinary income. For corporate investors,
                      dividends from net investment income will generally
                      qualify in part for the intercorporate dividends-received
                      deduction. However, the portion of the dividends so
                      qualified depends on the aggregate taxable qualifying
                      dividend income received by the Fund from domestic (U.S.)
                      sources.
 
                      Distributions paid by the Fund from long-term capital
                      gains, whether received in cash or reinvested in
                      additional shares, are taxable as long-term capital gains,
                      regardless of the length of time you have owned shares in
                      the Fund. Capital gains distributions are made when the
                      Fund realizes net capital gains on sales of portfolio
 
                                       13
<PAGE>   16
 
                      securities during the year. The Fund does not seek to
                      realize any particular amount of capital gains during a
                      year; rather, realized gains are a by-product of portfolio
                      management activities. Consequently, capital gains
                      distributions may be expected to vary considerably from
                      year to year. There will be no capital gains distributions
                      in years when the Fund realizes net capital losses.
 
                      Note that if you accept capital gains distributions in
                      cash, instead of reinvesting them in additional shares,
                      you are in effect reducing the capital at work for you in
                      the Fund. Also, keep in mind that if you purchase shares
                      in the Fund shortly before the record date for a dividend
                      or capital gains distribution, a portion of your
                      investment will be returned to you as a taxable
                      distribution, regardless of whether you are reinvesting
                      your distributions or receiving them in cash.
 
                      The Fund will notify you annually as to the tax status of
                      dividend and capital gains distributions paid by the Fund.
 
A CAPITAL GAIN OR
LOSS MAY BE REALIZED
UPON EXCHANGE OR
REDEMPTION            A sale of shares of the Fund is a taxable event, and may
                      result in a capital gain or loss. A capital gain or loss
                      may be realized from an ordinary redemption of shares or
                      an exchange of shares between two mutual funds (or two
                      portfolios of a mutual fund).
 
                      Dividend distributions, capital gains distributions, and
                      capital gains or losses from redemptions and exchanges may
                      be subject to state and local taxes.
 
                      The Fund is required to withhold 31% of taxable dividends,
                      capital gains distributions, and redemptions paid to
                      shareholders who have not complied with IRS taxpayer
                      identification regulations. You may avoid this withholding
                      requirement by certifying on your Account Registration
                      Form your proper Social Security or Employer
                      Identification number and by certifying that you are not
                      subject to backup withholding.
 
                      The Fund has obtained a Certificate of Authority to do
                      business as a foreign corporation in Pennsylvania and does
                      business and maintains an office in that state. In the
                      opinion of counsel, the shares of the Fund are exempt from
                      Pennsylvania personal property taxes.
 
                      The tax discussion set forth above is included for general
                      information only. Prospective investors should consult
                      their own tax advisers concerning the tax consequences of
                      an investment in the Fund.
- --------------------------------------------------------------------------------
 
THE SHARE PRICE
OF THE FUND           The Fund's share price or "net asset value" per share is
                      determined by dividing the total market value of the
                      Fund's investments and other assets, less any liabilities,
                      by the number of outstanding shares of the Fund. Net asset
                      value per share is determined once daily at the close of
                      regular trading on the New York Stock Exchange (generally
                      4:00 p.m. Eastern time) on each day that the Exchange is
                      open for business. Portfolio securities that are listed on
                      a securities exchange are valued at the last quoted sales
                      price on the day the valuation is made. Price information
                      on listed securities is taken from the exchange where the
                      security is primarily traded. Securities which are listed
                      on an exchange and which are not traded on the valuation
 
                                       14
<PAGE>   17
 
                      date are valued at the mean between the latest quoted bid
                      and ask prices. Unlisted securities for which market
                      quotations are readily available are valued at the latest
                      quoted bid price. Other assets and securities for which no
                      quotations are readily available are valued at fair value
                      as determined in good faith by the Directors. Securities
                      may be valued on the basis of prices provided by a pricing
                      service when such prices are believed to reflect the fair
                      market value of such securities.
 
                      The Fund's share price can be found daily in the mutual
                      fund listings of most major newspapers under the heading
                      of The Vanguard Group.
- --------------------------------------------------------------------------------
 
GENERAL
INFORMATION           The Fund is a Maryland corporation. The Articles of
                      Incorporation permit the Directors to issue 150,000,000
                      shares of common stock, with a $.10 par value. The Board
                      of Directors has the power to designate one or more
                      classes ("series") of shares of common stock and to
                      classify or reclassify any unissued shares with respect to
                      such series. Currently the Fund is offering one class of
                      shares.
 
                      The shares of the Fund are fully paid and non-assessable;
                      have no preference as to conversion, exchange, dividends,
                      retirement or other features; and have no pre-emptive
                      rights. Such shares have non-cumulative voting rights,
                      meaning that the holders of more than 50% of the shares
                      voting for the election of Directors can elect 100% of the
                      Directors if they so choose.
 
                      Annual meetings of shareholders will not be held except as
                      required by the Investment Company Act of 1940 and other
                      applicable law. An annual meeting will be held to vote on
                      the removal of a Director or Directors of the Fund if
                      requested in writing by the holders of not less than 10%
                      of the outstanding shares of the Fund.
 
                      All securities and cash are held by State Street Bank and
                      Trust Company, Boston, MA. The Vanguard Group, Inc.,
                      Valley Forge, PA, serves as the Fund's Transfer and
                      Dividend Disbursing Agent. Price Waterhouse LLP serves as
                      independent accountants for the Fund and will audit its
                      financial statements annually. The Fund is not involved in
                      any litigation.
- --------------------------------------------------------------------------------
 
                                       15
<PAGE>   18
 
                               SHAREHOLDER GUIDE
 
OPENING AN
ACCOUNT AND
PURCHASING
SHARES                You may open a regular (non-retirement) account, either by
                      mail or wire. Simply complete and return an Account
                      Registration Form and any required legal documentation,
                      indicating the amount you wish to invest. Your purchase
                      must be equal to or greater than the $3,000 minimum
                      initial investment requirement ($500 for Uniform
                      Gifts/Transfers to Minors Act accounts). You must open a
                      new Individual Retirement Account by mail (IRAs may not be
                      opened by wire) using a Vanguard IRA Adoption Agreement.
                      Your purchase must be equal to or greater than the $500
                      minimum initial investment requirement, but no more than
                      $2,000 if you are making a regular IRA contribution.
                      Rollover contributions are generally limited to the amount
                      withdrawn within the past 60 days from an IRA or other
                      qualified Retirement Plan. If you need assistance with the
                      forms or have any questions about the Fund, please call
                      our Investor Information Department (1-800-662-7447).
                      Note: For other types of account registrations (e.g.,
                      corporations, associations, other organizations, trusts or
                      powers of attorney), please call us to determine which
                      additional forms you may need.
 
                      Because of the risks associated with common stock
                      investments, the Fund is intended to be a long-term
                      investment vehicle and is not designed to provide
                      investors with a means of speculating on short-term market
                      movements. Consequently, the Fund reserves the right to
                      reject any specific purchase (and exchange purchase)
                      request. The Fund also reserves the right to suspend the
                      offering of shares for a period of time.
 
                      The Fund's shares are purchased at the next-determined net
                      asset value after your investment has been received. The
                      Fund is offered on a no-load basis (i.e., there are no
                      sales commissions or 12b-1 fees).
 
ADDITIONAL
INVESTMENTS           Subsequent investments to regular accounts may be made by
                      mail ($100 minimum), wire ($1,000 minimum), exchange from
                      another Vanguard Fund account ($100 minimum), or Vanguard
                      Fund Express. Subsequent investments to Individual
                      Retirement Accounts may be made by mail ($100 minimum) or
                      exchange from another Vanguard Fund account. In some
                      instances, contributions may be made by wire or Vanguard
                      Fund Express. Please call us for more information on these
                      options.
- --------------------------------------------------------------------------------
 
                                       16
<PAGE>   19
<TABLE>
<S>                       <C>                                       <C>
                                                                    ADDITIONAL INVESTMENTS
PURCHASING BY MAIL        NEW ACCOUNT                               TO EXISTING ACCOUNTS

Complete and sign the     Please include the amount of              Additional investments should
enclosed Account          your initial investment on the            include the Invest-by-Mail
Registration Form         registration form, make your              remittance form attached to your
                          check payable to The Vanguard             Fund confirmation statements.
                          Group-26, and mail to:                    Please make your check payable
                                                                    to The Vanguard Group-26, write
                          VANGUARD FINANCIAL CENTER                 your account number on your
                          P.O. BOX 2600                             check, and, using the return
                          VALLEY FORGE, PA 19482                    envelope provided, mail to the
                                                                    address indicated on the
                                                                    Invest-by-Mail Form.

For express or            VANGUARD FINANCIAL CENTER                 All written requests should be
registered mail,          455 DEVON PARK DRIVE                      mailed to one of the addresses
send to:                  WAYNE, PA 19087                           indicated for new accounts. Do
                                                                    not send registered or express
                                                                    mail to the post office box
                                                                    address.
                          --------------------------------------------------------------------------
</TABLE>
 
PURCHASING BY WIRE

Money should be
wired to:

BEFORE WIRING

Please contact
Client Services
(1-800-662-2739)                  CORESTATES BANK, N.A.
                                  ABA 031000011
                                  CORESTATES NO. 0101 9897
                                  ATTN VANGUARD
                                  VANGUARD/MORGAN GROWTH FUND
                                  ACCOUNT NUMBER
                                  ACCOUNT REGISTRATION
 
                      To assure proper receipt, please be sure your bank
                      includes the name of the Fund, the account number Vanguard
                      has assigned to you and the eight digit CoreStates number.
                      If you are opening a new account, please complete the
                      Account Registration Form and mail it to the "New Account"
                      address above after completing your wire arrangement.
                      Note: Federal Funds wire purchase orders will be accepted
                      only when the Fund and Custodian Bank are open for
                      business.
- --------------------------------------------------------------------------------
PURCHASING BY
EXCHANGE (from a
Vanguard account)     You may open an account or purchase additional shares by
                      making an exchange from another Vanguard Fund account.
                      However, the Fund reserves the right to refuse any
                      exchange purchase request. Call our Client Services
                      Department (1-800-662-2739) for assistance. The new
                      account will have the same registration as the existing
                      account.
- --------------------------------------------------------------------------------
PURCHASING BY
FUND EXPRESS

Special Purchase and
Automatic Investment  The Fund Express Special Purchase option lets you move
                      money from your bank account to your Vanguard account on
                      an "as needed" basis. Or if you choose the Automatic
                      Investment option, money will be moved automatically from
                      your bank account to your Vanguard account on the schedule
                      (monthly, bimonthly [every other month], quarterly or
                      yearly) you select. To establish these Fund Express
                      options, please provide the appropriate information on the
                      Account Registration
 
                                       17
<PAGE>   20
                      Form. We will send you a confirmation of your Fund Express
                      enrollment; please wait three weeks before using the
                      service.
- --------------------------------------------------------------------------------
CHOOSING A
DISTRIBUTION
OPTION                You must select one of three distribution options:
 
                      1. AUTOMATIC REINVESTMENT OPTION -- Both dividends and
                         capital gains distributions will be reinvested in
                         additional Fund shares. This option will be selected
                         for you automatically unless you specify one of the
                         other options.
 
                      2. CASH DIVIDEND OPTION -- Your dividends will be paid in
                         cash and your capital gains will be reinvested in
                         additional Fund shares.
 
                      3. ALL CASH OPTION -- Both dividend and capital gains
                         distributions will be paid in cash.
 
                      You may change your option by calling our Client Services
                      Department (1-800-662-2739).
 
                      In addition, an option to invest your cash dividends
                      and/or capital gains distributions in another Vanguard
                      Fund account is available. Please call our Client Services
                      Department (1-800-662-2739) for information. You may also
                      elect Vanguard Dividend Express which allows you to
                      transfer your cash dividends and/or capital gains
                      distributions automatically to your bank account. Please
                      see "Other Vanguard Services" for more information.
- --------------------------------------------------------------------------------
TAX CAUTION

INVESTORS SHOULD ASK
ABOUT THE TIMING
OF CAPITAL GAINS AND
DIVIDEND DISTRIBUTIONS
BEFORE INVESTING      Under Federal tax laws, the Fund is required to distribute
                      net capital gains and dividend income to Fund
                      shareholders. These distributions are made to all
                      shareholders who own Fund shares as of the distribution's
                      record date, regardless of how long the shares have been
                      owned. Purchasing shares just prior to the record date
                      could have a significant impact on your tax liability for
                      the year. For example, if you purchase shares immediately
                      prior to the record date of a sizable capital gain or
                      income dividend distribution, you will be assessed taxes
                      on the amount of the capital gain and/or dividend
                      distribution later paid even though you owned the Fund
                      shares for just a short period of time. (Taxes are due on
                      the distributions even if the dividend or gain is
                      reinvested in additional Fund shares.) While the total
                      value of your investment will be the same after the
                      distribution -- the amount of the distribution will offset
                      the drop in the net asset value of the shares -- you
                      should be aware of the tax implications the timing of your
                      purchase may have.
 
                      Prospective investors should, therefore, inquire about
                      potential distributions before investing. The Fund's
                      annual dividend and capital gains distributions normally
                      occur in December. For additional information on
                      distributions and taxes, see the section titled
                      "Dividends, Capital Gains, and Taxes."
- --------------------------------------------------------------------------------
IMPORTANT
INFORMATION

ESTABLISHING OPTIONAL
SERVICES              The easiest way to establish optional Vanguard services on
                      your account is to select the options you desire when you
                      complete your Account Registration Form. If you wish to
                      add options later, you may need to provide Vanguard with
                      additional information and a signature guarantee. Please
                      call our Client Services Department (1-800-662-2739) for
                      further assistance.
 
                                       18
<PAGE>   21
 
SIGNATURE GUARANTEES  For our mutual protection, we may require a signature
                      guarantee on certain written transaction requests. A
                      signature guarantee verifies the authenticity of your
                      signature and may be obtained from banks, brokers and any
                      other guarantor that Vanguard deems acceptable. A
                      SIGNATURE GUARANTEE CANNOT BE PROVIDED BY A NOTARY PUBLIC.
 
CERTIFICATES          Share certificates will be issued upon request. If a
                      certificate is lost, you may incur an expense to replace
                      it.
 
BROKER-DEALER
PURCHASES             If you purchase shares in Vanguard Funds through a
                      registered broker-dealer or investment adviser, the
                      broker-dealer or adviser may charge a service fee.
 
CANCELLING TRADES     The Fund will not cancel any trade (e.g., a purchase,
                      exchange or redemption) believed to be authentic, received
                      in writing or by telephone, once the trade request has
                      been received.
 
ELECTRONIC
PROSPECTUS
DELIVERY              If you would prefer to receive a prospectus for the Fund
                      or any of the Vanguard Funds in an electronic format,
                      please call 1-800-231-7870 for additional information. If
                      you elect to do so, you may also receive a paper copy of
                      the prospectus, by calling 1-800-662-7447.
- --------------------------------------------------------------------------------
 
WHEN YOUR
ACCOUNT WILL
BE CREDITED           Your trade date is the date on which your account is
                      credited. If your purchase is made by check, Federal Funds
                      wire or exchange, and is received by the close of the New
                      York Stock Exchange (generally 4:00 p.m. Eastern time),
                      your trade date is the day of receipt. If your purchase is
                      received after the close of the Exchange, your trade date
                      is the next business day. Your shares are purchased at the
                      net asset value determined on your trade date. Vanguard
                      will not accept third-party checks to open an account.
                      Please be sure your purchase check is made payable to the
                      Vanguard Group.
 
                      In order to prevent lengthy processing delays caused by
                      the clearing of foreign checks, Vanguard will only accept
                      a foreign check which has been drawn in U.S. dollars and
                      has been issued by a foreign bank with a U.S.
                      correspondent bank. The name of the U.S. correspondent
                      bank must be printed on the face of the foreign check.
- --------------------------------------------------------------------------------
 
SELLING YOUR
SHARES                You may withdraw any portion of the funds in your account
                      by redeeming shares at any time. You may initiate a
                      request by writing or by telephoning. Your redemption
                      proceeds are normally mailed within two business days
                      after the receipt of the request in Good Order.
 
SELLING BY MAIL       Requests should be mailed to VANGUARD FINANCIAL CENTER,
                      VANGUARD/MORGAN GROWTH FUND, P.O. BOX 1120, VALLEY FORGE,
                      PA 19482. (For express or registered mail, send your
                      request to Vanguard Financial Center, Vanguard/Morgan
                      Growth Fund, 455 Devon Park Drive, Wayne, PA 19087.)
 
                      The redemption price of shares will be the Fund's net
                      asset value next determined after Vanguard has received
                      all required documents in Good Order.
- --------------------------------------------------------------------------------
 
                                       19
<PAGE>   22
 
DEFINITION OF
GOOD ORDER            GOOD ORDER means that the request includes the following:
 
                      1. The account number and Fund name.
                      2. The amount of the transaction (specified in dollars or
                         shares).
                      3. The signatures of all owners EXACTLY as they are
                         registered on the account.
                      4. Any required signature guarantees.
                      5. Other supporting legal documentation that might be
                         required in the case of estates, corporations, trusts,
                         and certain other accounts.
                      6. Any certificates that you are holding for the account.
 
                      IF YOU HAVE QUESTIONS ABOUT THIS DEFINITION AS IT PERTAINS
                      TO YOUR ACCOUNT, PLEASE CALL OUR CLIENT SERVICES
                      DEPARTMENT (1-800-662-2739).
- --------------------------------------------------------------------------------
SELLING BY
TELEPHONE             To sell shares by telephone, you or your pre-authorized
                      representative may call our Client Services Department at
                      1-800-662-2739. The proceeds will be sent to you by mail.
                      Please see "Important Information About Telephone
                      Transactions."
- --------------------------------------------------------------------------------
SELLING BY FUND
EXPRESS

Automatic Withdrawal
& Special Redemption  If you select the Fund Express Automatic Withdrawal
                      option, money will be automatically moved from your
                      Vanguard Fund account to your bank account according to
                      the schedule you have selected. The Special Redemption
                      option lets you move money from your Vanguard account to
                      your bank account on an "as needed" basis. To establish
                      these Fund Express options, please provide the appropriate
                      information on the Account Registration Form. We will send
                      you a confirmation of your Fund Express service; please
                      wait three weeks before using the service.
- --------------------------------------------------------------------------------
SELLING BY
EXCHANGE              You may sell shares by making an exchange into another
                      Vanguard Fund account. Please see "Exchanging Your Shares"
                      for details.
- --------------------------------------------------------------------------------
IMPORTANT REDEMPTION
INFORMATION           Shares purchased by check may be redeemed at any time.
                      However, your redemption proceeds will not be paid until
                      payment for the purchase is collected, which may take up
                      to ten calendar days.
- --------------------------------------------------------------------------------
DELIVERY OF
REDEMPTION
PROCEEDS              Redemption requests received by telephone prior to the
                      close of the New York Stock Exchange (generally 4:00 p.m.
                      Eastern time) are processed on the day of receipt and the
                      redemption proceeds are normally sent on the following
                      business day.
 
                      Redemption requests received by telephone after the close
                      of the Exchange are processed on the business day
                      following receipt and the proceeds are normally sent on
                      the second business day following receipt.
 
                      Redemption proceeds must be sent to you within seven days
                      of receipt of your request in Good Order.
 
                      If you experience difficulty in making a telephone
                      redemption during periods of drastic economic or market
                      changes, your redemption request may be made by regular or
                      express mail. It will be implemented at the net asset
                      value next determined after your request has been received
                      by Vanguard in Good Order. The Fund reserves the right to
                      revise or terminate the telephone redemption privilege at
                      any time.
 
                                       20
<PAGE>   23
                      The Fund may suspend the redemption right or postpone
                      payment at times when the New York Stock Exchange is
                      closed or under any emergency circumstances as determined
                      by the United States Securities and Exchange Commission.
 
                      If the Board of Directors determines that it would be
                      detrimental to the best interests of the Fund's remaining
                      shareholders to make payment in cash, the Fund may pay
                      redemption proceeds in whole or in part by a distribution
                      in kind of readily marketable securities.
- --------------------------------------------------------------------------------
VANGUARD'S AVERAGE
COST STATEMENT        If you make a redemption from a qualifying account,
                      Vanguard will send you an Average Cost Statement which
                      provides you with the tax basis of the shares you
                      redeemed. Please see "Other Vanguard Services" for
                      additional information.
- --------------------------------------------------------------------------------
MINIMUM ACCOUNT
BALANCE
REQUIREMENT           Due to the relatively high cost of maintaining smaller
                      accounts, the Fund reserves the right to redeem shares in
                      any account that is below the minimum initial investment
                      amount of $3,000. If at any time your total investment
                      does not have a value of at least $3,000, you may be
                      notified that your account is below the Fund's minimum
                      account balance requirement. You would then be allowed 60
                      days to make an additional investment before the account
                      is liquidated. Proceeds would be promptly paid to the
                      registered shareholder. (This minimum does not apply to
                      IRAs, other retirement accounts, and Uniform
                      Gifts/Transfers to Minors Act accounts.)
 
                      The Fund's minimum account balance requirement will not
                      apply if your account falls below $3,000 solely at a
                      result of declining markets (i.e., a decline in a Fund's
                      net asset value).
- --------------------------------------------------------------------------------
EXCHANGING YOUR
SHARES                Should your investment goals change, you may exchange your
                      shares of Vanguard/ Morgan Growth Fund for those of other
                      available Vanguard Funds.
 
EXCHANGING BY
TELEPHONE

Call Client Services
(1-800-662-2739)      When exchanging shares by telephone, please have ready the
                      Fund name, account number, Social Security Number or
                      Employer Identification number listed on the account, and
                      exact name and address in which the account is registered.
                      Only the registered shareholder may complete such an
                      exchange. Requests for telephone exchanges received prior
                      to the close of trading on the New York Stock Exchange
                      (generally 4:00 p.m. Eastern time) are processed at the
                      close of business that same day. Requests received after
                      the close of the Exchange are processed the next business
                      day. TELEPHONE EXCHANGES ARE NOT ACCEPTED INTO OR FROM
                      VANGUARD BALANCED INDEX FUND, VANGUARD INDEX TRUST,
                      VANGUARD INTERNATIONAL EQUITY INDEX FUND, AND VANGUARD
                      QUANTITATIVE PORTFOLIOS. If you experience difficulty in
                      making a telephone exchange, your exchange request may be
                      made by regular or express mail, and it will be
                      implemented at the closing net asset value on the date
                      received by Vanguard, provided the request is received in
                      Good Order.
- --------------------------------------------------------------------------------
EXCHANGING BY MAIL    Please be sure to include on your exchange request the
                      name and account number of your current Fund, the name of
                      the Fund you wish to exchange into, the amount you wish to
                      exchange, and the signatures of all registered account
                      holders. Send your request to VANGUARD FINANCIAL CENTER,
                      VANGUARD/MORGAN GROWTH FUND, P.O. BOX 1120, VALLEY FORGE,
                      PA 19482. (For express or registered mail, send your
                      request to
 
                                       21
<PAGE>   24
 
                      Vanguard Financial Center, Vanguard/Morgan Growth Fund,
                      455 Devon Park Drive, Wayne, PA 19087.)
- --------------------------------------------------------------------------------
 
IMPORTANT EXCHANGE
INFORMATION           Before you make an exchange, you should consider the
                      following:
 
                      - Please read the Fund's prospectus before making an
                        exchange. For a copy and for answers to any questions
                        you may have, call our Investor Information Department
                        (1-800-662-7447).
 
                      - An exchange is treated as a redemption and a purchase.
                        Therefore, you could realize a taxable gain or loss on
                        the transaction.
 
                      - Exchanges are accepted only if the registrations and the
                        Taxpayer Identification numbers of the two accounts are
                        identical.
 
                      - The shares to be exchanged must be on deposit and not
                        held in certificate form.
 
                      - New accounts are not currently accepted in
                        Vanguard/Windsor Fund or Vanguard/ PRIMECAP Fund.
 
                      - The redemption price of shares redeemed by exchange is
                        the net asset value next determined after Vanguard has
                        received all required documentation in Good Order.
 
                      - When opening a new account by exchange, you must meet
                        the minimum investment requirement of the new Fund.
 
                      Every effort will be made to maintain the exchange
                      privilege. However, the Fund reserves the right to revise
                      or terminate its provisions, limit the amount of or reject
                      any exchange, as deemed necessary, at any time.
 
                      The exchange privilege is only available in states in
                      which the shares of the Fund are registered for sale. The
                      Fund's shares are currently registered for sale in all 50
                      states and the Fund intends to maintain such registration.
- --------------------------------------------------------------------------------
 
EXCHANGE
PRIVILEGE
LIMITATIONS           The Fund's exchange privilege is not intended to afford
                      shareholders a way to speculate on short-term movements in
                      the market. Accordingly, in order to prevent excessive use
                      of the exchange privilege that may potentially disrupt the
                      management of the Fund and increase transaction costs, the
                      Fund has established a policy of limiting excessive
                      exchange activity.
 
                      Exchange activity generally will not be deemed excessive
                      if limited to TWO SUBSTANTIVE EXCHANGE REDEMPTIONS (AT
                      LEAST 30 DAYS APART) from the Fund during any twelve month
                      period. Notwithstanding these limitations, the Fund
                      reserves the right to reject any purchase request
                      (including exchange purchases from other Vanguard
                      portfolios) that is reasonably deemed to be disruptive to
                      efficient portfolio management.
- --------------------------------------------------------------------------------
 
                                       22
<PAGE>   25
 
IMPORTANT
INFORMATION
ABOUT TELEPHONE
TRANSACTIONS          The ability to initiate redemptions (except wire
                      redemptions) and exchanges by telephone is automatically
                      established on your account unless you request in writing
                      that telephone transactions on your account not be
                      permitted.
 
                      To protect your account from losses resulting from
                      unauthorized or fraudulent telephone instructions,
                      Vanguard adheres to the following security procedures:
 
                      1. SECURITY CHECK.  To request a transaction by telephone,
                      the caller must know (i) the name of the Portfolio; (ii)
                      the 10-digit account number; (iii) the exact name and
                      address used in the registration; and (iv) the Social
                      Security or Employer Identification number listed on the
                      account.
 
                      2. PAYMENT POLICY.  The proceeds of any telephone
                      redemption by mail will be made payable to the registered
                      shareowner and mailed to the address of record, only.
 
                      Neither the Fund nor Vanguard will be responsible for the
                      authenticity of transaction instructions received by
                      telephone, provided that reasonable security procedures
                      have been followed. Vanguard believes that the security
                      procedures described above are reasonable, and that if
                      such procedures are followed, you will bear the risk of
                      any losses resulting from unauthorized or fraudulent
                      telephone transactions on your account.
- --------------------------------------------------------------------------------
 
TRANSFERRING
REGISTRATION          You may transfer the registration of any of your Fund
                      shares to another person by completing a transfer form and
                      sending it to: VANGUARD FINANCIAL CENTER, P.O. BOX 1110,
                      VALLEY FORGE, PA 19482, ATTENTION: TRANSFER DEPARTMENT.
                      The request must be in Good Order. To obtain a transfer
                      form and complete instructions, please call our Client
                      Services Department (1-800-662-2739).
- --------------------------------------------------------------------------------
 
STATEMENTS AND
REPORTS               Vanguard will send you a confirmation statement each time
                      you initiate a transaction in your account except for
                      checkwriting redemptions from Vanguard money market
                      accounts. You will also receive a comprehensive account
                      statement at the end of each calendar quarter. The
                      fourth-quarter statement will be a year-end statement,
                      listing all transaction activity for the entire calendar
                      year.
 
                      Vanguard's Average Cost Statement provides you with the
                      average cost of shares redeemed from your account using
                      the average cost single category method. This service is
                      available for most taxable accounts opened since January
                      1, 1986. In general, investors who redeemed shares from a
                      qualifying Vanguard account may expect to receive their
                      Average Cost Statement in February of the following year.
                      Please call our Client Services Department
                      (1-800-662-2739) for information.
 
                      Financial reports on the Fund will be mailed to you
                      semi-annually, according to the Fund's fiscal year-end.
- --------------------------------------------------------------------------------
 
                                       23
<PAGE>   26
 
OTHER VANGUARD
SERVICES              For more information about any of these services, please
                      call our Investor Information Department at
                      1-800-662-7447.
 
VANGUARD DIRECT
DEPOSIT SERVICE       With Vanguard's Direct Deposit Service, most U.S.
                      Government checks (including Social Security and military
                      pension checks) and private payroll checks may be
                      automatically deposited into your Vanguard Fund account.
                      Separate brochures and forms are available for direct
                      deposit of U.S. Government and private payroll checks.
 
VANGUARD AUTOMATIC
EXCHANGE SERVICE      Vanguard's Automatic Exchange Service allows you to move
                      money automatically among your Vanguard Fund accounts. For
                      instance, the service can be used to "dollar cost average"
                      from a money market portfolio into a stock or bond fund or
                      to contribute to an IRA or other retirement plan. Please
                      contact our Client Services Department at 1-800-662-2739
                      for additional information.
 
VANGUARD FUND
EXPRESS               Vanguard's Fund Express allows you to transfer money
                      between your Fund account and your account at a bank,
                      savings and loan association, or a credit union that is a
                      member of the Automated Clearing House (ACH) system. You
                      may elect this service on the Account Registration Form or
                      call our Investor Information Department (1-800-662-7447)
                      for a Fund Express application.
 
                      The minimum amount that can be transferred by telephone is
                      $100. However, if you have established one of the
                      automatic options, the minimum amount is $50. The maximum
                      amount that can be transferred using any of the options is
                      $100,000.
 
                      Special rules govern how your Fund Express purchases or
                      redemptions are credited to your account. In addition,
                      some services of Fund Express cannot be used with specific
                      Vanguard Funds. For more information, please refer to the
                      Vanguard Fund Express brochure.
 
VANGUARD DIVIDEND
EXPRESS               Vanguard's Dividend Express allows you to transfer your
                      dividends and/or capital gains distributions automatically
                      from your Fund account, one business day after the Fund's
                      payable date, to your account at a bank, savings and loan
                      association, or a credit union that is a member of the
                      Automated Clearing House (ACH) system. You may elect this
                      service on the Account Registration Form or call our
                      Investor Information Department (1-800-662-7447) for a
                      Vanguard Dividend Express application.
 
VANGUARD
TELE-ACCOUNT          Vanguard's Tele-Account is a convenient, automated service
                      that provides share price, price change and yield
                      quotations on Vanguard Funds through any TouchToneTM
                      telephone. This service also lets you obtain information
                      about your account balance, your last transaction, and
                      your most recent dividend
                      or capital gains payment. To contact Vanguard's
                      Tele-Account service,
                      dial 1-800-ON-BOARD (1-800-662-6273). A brochure offering
                      detailed
                      operating instructions is available from our Investor
                      Information Department (1-800-662-7447).
- --------------------------------------------------------------------------------
 
                                       24
<PAGE>   27
 
                     (THIS PAGE INTENTIONALLY LEFT BLANK.)
<PAGE>   28
 
                     (THIS PAGE INTENTIONALLY LEFT BLANK.)
<PAGE>   29
 
                     (THIS PAGE INTENTIONALLY LEFT BLANK.)
<PAGE>   30
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                              <C>                                    <C>
                                       [VANGUARD
                                     MORGAN GROWTH
                                      FUND LOGO]                                                [VANGUARD
                                 ---------------------------                                  MORGAN GROWTH
                                 THE VANGUARD GROUP                                             FUND LOGO]
                                 OF INVESTMENT                                 
                                 COMPANIES                                          P   R   O   S   P   E   C   T   U   S
                                 Vanguard Financial Center
                                 P.O. Box 2600                                                  APRIL 26, 1995
                                 Valley Forge, PA 19482

                                 INVESTOR INFORMATION
                                 DEPARTMENT:
                                 1-800-662-7447 (SHIP)

                                 CLIENT SERVICES
                                 DEPARTMENT:
                                 1-800-662-2739 (CREW)

                                 TELE-ACCOUNT FOR
                                 24-HOUR ACCESS:
                                 1-800-662-6273 (ON-BOARD)

                                 TELECOMMUNICATION SERVICE
                                 FOR THE HEARING-IMPAIRED:
                                 1-800-662-2738

                                 TRANSFER AGENT:
                                 The Vanguard Group, Inc.
                                 Vanguard Financial Center
                                 Valley Forge, PA 19482







            P026                                                                [THE VANGUARD GROUP LOGO]

</TABLE>
 
- --------------------------------------------------------------------------------
<PAGE>   31
 

=============================================================================== 
[VANGUARD MORGAN GROWTH FUND LOGO] 

                                                 A Member of The Vanguard Group
=============================================================================== 

   
PROSPECTUS--APRIL 26, 1995
    
- --------------------------------------------------------------------------------
 
FUND INFORMATION: PARTICIPANT SERVICES--1-800-523-1188
- --------------------------------------------------------------------------------
 
   
INVESTMENT     
OBJECTIVE      
AND POLICIES          Vanguard/Morgan Growth Fund, Inc. (the "Fund") is an
                      open-end diversified investment company that seeks to
                      provide long-term growth of capital. The Fund invests
                      primarily in common stocks. Dividend income is incidental
                      to this objective. There is no assurance that the Fund
                      will achieve its stated objective. Shares of the Fund are
                      neither insured nor guaranteed by any agency of the U.S.
                      Government, including the FDIC.
    
- --------------------------------------------------------------------------------
 
IMPORTANT NOTE        This Prospectus is intended exclusively for participants
                      in employer-sponsored retirement or savings plans, such as
                      tax-qualified pension and profit-sharing plans and 401(k)
                      thrift plans, as well as 403(b) custodial accounts for
                      non-profit educational and charitable organizations.
                      Another version of this Prospectus, containing information
                      on how to open a personal investment account with the
                      Fund, is available for individual investors. To obtain a
                      copy of that version of the Prospectus, please call
                      1-800-662-7447.
- --------------------------------------------------------------------------------

OPENING AN   
ACCOUNT               The Fund is an investment option under a retirement or
                      savings program sponsored by your employer. The
                      administrator of your retirement plan or your employee
                      benefits office can provide you with detailed information
                      on how to participate in your plan and how to elect the
                      Fund as an investment option.
 
                      If you have any questions about the Fund, please contact
                      Participant Services at 1-800-523-1188. If you have any
                      questions about your plan account, contact your plan
                      administrator or the organization that provides
                      recordkeeping services for your plan.
- --------------------------------------------------------------------------------
 
   
ABOUT THIS  
PROSPECTUS            This Prospectus is designed to set forth concisely the
                      information you should know about the Fund before you
                      invest. It should be retained for future reference. A
                      "Statement of Additional Information" containing
                      additional information about the Fund has been filed with
                      the Securities and Exchange Commission. This Statement is
                      dated April 26, 1995 and has been incorporated by
                      reference into this Prospectus. A copy may be obtained
                      without charge by writing to the Fund or by calling the
                      Investor Information Department.
    
- --------------------------------------------------------------------------------
 
TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                    Page                                       Page                                   Page
<S>                                        <C>                                        <C>
Fund Expenses ......................  2    Who Should Invest .................   5    Dividends, Capital Gains
Financial Highlights ...............  2    Implementation of Policies ........   6      and Taxes ...................  13
Yield and Total Return .............  3    Investment Limitations ............   8    The Share Price of the Fund ...  13
Investment Objective ...............  4    Management of the Fund ............   8    General Information ...........  14
Investment Policies ................  4    Investment Advisers ...............   9              SERVICE GUIDE                      
Investment Risks ...................  5    Performance Record ................  12    Participating in Your Plan ....  15 
</TABLE>
    
 
- --------------------------------------------------------------------------------

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

<PAGE>   32
 
   
FUND EXPENSES         The following table illustrates all expenses and fees that
                      as a shareholder of the Fund would incur. The expenses and
                      fees set forth in the table are for the 1994 fiscal year.
    
 
<TABLE>
<CAPTION>
                                                   SHAREHOLDER TRANSACTION EXPENSES
                                <S>                                                             <C>
                                ----------------------------------------------------------------------
                                Sales Load Imposed on Purchases...............................    None
                                Sales Load Imposed on Reinvested Dividends....................    None
                                Redemption Fees...............................................    None
                                Exchange Fees.................................................    None
</TABLE>
 
   
<TABLE>
<CAPTION>
                                                    ANNUAL FUND OPERATING EXPENSES
                                <S>                                                     <C>     <C>
                                ----------------------------------------------------------------------
                                Management & Administrative Expenses..........................    0.32%
                                Investment Advisory Fees......................................    0.14
                                12b-1 Fees....................................................    None
                                Other Expenses
                                  Distribution Costs..................................  0.02%
                                  Miscellaneous Expenses..............................  0.02
                                                                                        -----
                                Total Other Expenses..........................................    0.04
                                                                                                 -----
                                         TOTAL OPERATING EXPENSES.............................    0.50%
                                                                                                 -----
                                                                                                 -----
</TABLE>
    
 
                      The purpose of this table is to assist you in
                      understanding the various costs and expenses that an
                      investor would bear directly or indirectly as a
                      shareholder in the Fund.
 
                      The following example illustrates the expenses that you
                      would incur on a $1,000 investment over various periods,
                      assuming (1) a 5% annual rate of return and (2) redemption
                      at the end of each period. As noted in the table above,
                      the Fund charges no redemption fees of any kind.
 
   
<TABLE>
<CAPTION>
                        1 YEAR     3 YEARS     5 YEARS     10 YEARS
                        -------    --------    --------    ---------
                        <S>        <C>         <C>         <C>
                          $5         $16         $28          $63
</TABLE>
    
 
                      THIS EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF
                      PAST OR FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES
                      MAY BE HIGHER OR LOWER THAN THOSE SHOWN.
- --------------------------------------------------------------------------------
 
   
FINANCIAL  
HIGHLIGHTS            The following financial highlights, for a share
                      outstanding throughout each period, insofar as they relate
                      to each of the five years in the period ended December 31,
                      1994, have been audited by Price Waterhouse LLP,
                      independent accountants, whose report thereon was
                      unqualified. This information should be read in
                      conjunction with the Fund's financial statements and notes
                      thereto which are incorporated by reference in the
                      Statement of Additional Information and in this
                      Prospectus, and which appear, along with the report of
                      Price Waterhouse LLP, in the Fund's 1994 Annual Report to
                      the Shareholders. For a more complete discussion of the
                      Fund's performance, please see the Fund's 1994 Annual
                      Report to Shareholders which may be obtained without
                      charge by writing to the Fund or by calling Participant
                      Services at 1-800-523-1188.
    
 
                                        2
<PAGE>   33
 
   
<TABLE>
<CAPTION>
                                                                    YEAR ENDED DECEMBER 31,
                             ------------------------------------------------------------------------------------------------
                              1994      1993      1992      1991      1990      1989      1988      1987      1986      1985
<S>                          <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>    
- -----------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING
  OF YEAR..................  $12.01    $12.65    $12.20    $10.40    $11.72    $10.27    $ 9.39    $11.50    $13.82    $11.45
                             ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
INVESTMENT OPERATIONS
  Net Investment Income....     .14       .18       .18       .29       .32       .28       .25       .23       .21       .23
  Net Realized and
    Unrealized
    Gain (Loss) on
      Investments..........    (.34)      .71       .97      2.66      (.50)     2.04      1.85       .31       .78      2.99
                             ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
    TOTAL FROM INVESTMENT
      OPERATIONS...........    (.20)      .89      1.15      2.95      (.18)     2.32      2.10       .54       .99      3.22
- -----------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS
  Dividends from Net
    Investment Income......    (.14)     (.18)     (.18)     (.29)     (.34)     (.28)     (.24)     (.20)     (.43)     (.25)
  Distributions from
    Realized Capital
    Gains..................    (.31)    (1.35)     (.52)     (.86)     (.80)     (.59)     (.98)    (2.45)    (2.88)     (.60)
                             ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
    TOTAL DISTRIBUTIONS....    (.45)    (1.53)     (.70)    (1.15)    (1.14)     (.87)    (1.22)    (2.65)    (3.31)     (.85)
- -----------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF
  YEAR.....................  $11.36    $12.01    $12.65    $12.20    $10.40    $11.72    $10.27    $ 9.39    $11.50    $13.82
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN...............   (1.67)%    7.32%     9.54%    29.33%    (1.51)%   22.66%    22.34%     5.02%     7.83%    30.29%
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Year
  (Millions)...............  $1,075    $1,135    $1,116      $957      $697      $733      $622      $538      $594      $665
Ratio of Expenses to
  Average Net Assets.......     .50%      .49%      .48%      .46%      .55%      .51%      .55%      .46%      .54%      .60%
Ratio of Net Investment
  Income to Average Net
  Assets...................    1.15%     1.36%     1.51%     2.36%     2.77%     2.38%     2.20%     1.52%     1.49%     1.96%
Portfolio Turnover Rate....      84%       72%       64%       52%       73%       27%       32%       43%       31%       42%
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
   
YIELD AND     
TOTAL RETURN          From time to time the Fund may advertise its yield and
                      total return. Both yield and total return figures are
                      based on historical earnings and are not intended to
                      indicate future performance. The "total return" of the
                      Fund refers to the average annual compounded rates of
                      return over one-, five- and ten-year periods or for the
                      life of the Fund (as stated in the advertisement) that
                      would equate an initial amount invested at the beginning
                      of a stated period to the ending redeemable value of the
                      investment, assuming the reinvestment of all dividend and
                      capital gains distributions.
    
 
   
                      In accordance with industry guidelines set forth by the
                      U.S. Securities and Exchange Commission, the "30-day
                      yield" of the Fund is calculated by dividing net
                      investment income per share earned during a 30-day period
                      by the net asset value per share on the last day of the
                      period. Net investment income includes interest and
                      dividend income earned on the Fund's securities; it is net
                      of all expenses and all recurring and nonrecurring charges
                      that have been applied to all shareholder accounts. The
                      yield calculation assumes that net investment income
                      earned over 30 days is compounded monthly for six months
                      and then annualized. Methods used to calculate advertised
                      yields are standardized for all stock and bond mutual
                      funds. However, these methods differ from the accounting
                      methods used by the Fund to maintain its books and
                      records, and so the advertised 30-day yield may not fully
                      reflect the income paid to your own account.
    
- --------------------------------------------------------------------------------
 
                                        3
<PAGE>   34
 
INVESTMENT  
OBJECTIVE             The Fund is an open-end diversified investment company.
                      The objective of the Fund is to provide long-term growth
                      of capital by investing primarily in common stocks.
                      Dividend income is incidental to this objective. There is
                      no assurance that the Fund will achieve its stated
                      objective.
- --------------------------------------------------------------------------------
 
   
INVESTMENT       
POLICIES         
                 
THE FUND INVESTS 
PRIMARILY IN     
"GROWTH STOCKS"       The Fund invests primarily in the equity securities of
                      growth companies. Under normal circumstances, at least 65%
                      of the Fund's assets will be invested in such securities.
                      The Fund is managed without regard to tax ramifications.
                      The Fund will generally invest in a diversified portfolio
                      of common stocks but may also, from time to time, hold
                      securities that are convertible into common stocks.
    
 
                      The Fund is expected to invest a majority of its assets in
                      "established growth companies" -- i.e., larger
                      capitalization firms that have generally exhibited
                      above-average rates of growth in sales and earnings over
                      an extended period. The Fund may also invest in "emerging
                      growth companies" -- expanding firms with generally
                      smaller stock market capitalizations. Finally, the Fund
                      may hold investments in "cyclical growth and other
                      companies." These are firms which, while they may not have
                      a history of stable long-term growth, are nonetheless
                      expected to represent attractive investments.
 
                      The Fund's assets are managed by three unaffiliated
                      investment advisers and by Vanguard's Core Management
                      Group on an at-cost basis. Each adviser independently
                      chooses common stock investments for the Fund. Wellington
                      Management Company, which is currently responsible for
                      approximately 40% of the Fund's investments, utilizes
                      traditional methods of security selection, including
                      fundamental company research and relative valuation
                      techniques, in selecting growth stocks for the Fund. Husic
                      Capital Management, which manages approximately 13% of the
                      Fund, applies a "classic" fundamental investment strategy,
                      with an approach that includes investment themes,
                      candidate universes, and event-driven hurdles as key
                      elements. In contrast, Franklin Portfolio Associates Trust
                      ("FPA") and Vanguard's Core Management Group, which are
                      responsible for approximately 33% and 10%, respectively,
                      of the Fund's investments are "quantitative" investment
                      managers. They utilize computerized techniques designed to
                      track -- and, if possible, outperform -- the returns of a
                      specific standard. For the Fund, the standard is the
                      Growth Fund Stock Index, a benchmark calculated by
                      Morningstar. The Index is a measure of the composite
                      performance of the common stock holdings of the 50 largest
                      growth mutual funds.
 
                      In addition to investing in common stocks, the Fund is
                      also authorized to invest in certain short-term fixed
                      income securities as cash reserves and to use stock index
                      futures and options to a limited extent. See
                      "Implementation of Policies" for a description of these
                      and other investment practices of the Fund.
 
                      The investment objective and policies of the Fund are not
                      fundamental and so may be changed by the Board of
                      Directors without shareholder approval. However,
                      shareholders would be notified prior to a material change
                      in either.
- --------------------------------------------------------------------------------
 
                                        4
<PAGE>   35




                    
INVESTMENT          
RISKS               

THE FUND IS SUBJECT  
TO STOCK MARKET RISK  As a mutual fund investing primarily in common stocks, the
                      Fund is subject to market risk -- i.e., the possibility
                      that common stock prices will decline over short or even
                      extended periods. The U.S. stock market tends to be
                      cyclical, with periods when stock prices generally rise
                      and periods when prices generally decline.
 
   
                      To illustrate the volatility of stock prices, the
                      following table sets forth the extremes for stock market
                      returns as well as the average return for the period from
                      1926 to 1994, as measured by the Standard & Poor's 500
                      Composite Stock Price Index:
    
 
   
                                          U.S. STOCK MARKET RETURNS (1926-1994)
                                               OVER VARIOUS TIME HORIZONS
 
<TABLE>
<CAPTION>
                                       1 YEAR     5 YEARS     10 YEARS     20 YEARS
                                       ------     -------     --------     --------
                            <S>        <C>        <C>         <C>          <C>
                            Best       +53.9 %     +23.9%       +20.1%       +16.9%
                            Worst      -43.3       -12.5        - 0.9        + 3.1
                            Average    +12.2       +10.2        +10.7        +10.7
</TABLE>
    
 
   
                      As shown, common stocks have provided annual total returns
                      (capital appreciation plus dividend income) averaging
                      +10.7% for all 10-year periods from 1926 to 1994. Average
                      return may not be useful for forecasting future returns in
                      any particular period, as stock returns are quite volatile
                      from year to year.
    
 
                      The chart above should not be viewed as a representation
                      of future investment performance of the stock market or
                      the Fund. The illustrated returns represent historical
                      investment performance, which may be a poor guide to
                      future returns. Also, stock market indexes are based on
                      unmanaged portfolios of securities before transaction
                      costs and other expenses. Such costs reduce the relative
                      performance of the Fund and other "real world" portfolios.
                      Finally, given its emphasis on "growth stock" investments,
                      the Fund is likely to differ significantly in terms of
                      portfolio composition and investment performance from
                      broad market averages like the S&P 500.
- --------------------------------------------------------------------------------
 
WHO SHOULD
INVEST

INVESTORS SEEKING
LONG-TERM GROWTH      The Fund is designed for investors who have the
                      perspective, patience and financial ability to assume
                      above-average interim investment risk in pursuit of
                      long-term capital growth. Because of the risks associated
                      with common stock investments, the Fund is intended to be
                      a long-term investment vehicle and is not designed to
                      provide investors with a means of speculating on
                      short-term stock market movements. Investors who engage in
                      excessive account activity generate additional costs which
                      are borne by all of the Fund's shareholders. In order to
                      minimize such costs the Fund has adopted the following
                      policies. The Fund reserves the right to reject any
                      purchase request (including exchange purchases from other
                      Vanguard portfolios) that is reasonably deemed to be
                      disruptive to efficient portfolio management, either
                      because of the timing of the investment or previous
                      excessive trading by the investor. Additionally, the Fund
                      reserves the right to suspend the offering of its shares.
                      Since the Fund will focus on common stocks that offer
                      below-average levels of current income,
                      greater-than-average investment risk -- for a common stock
                      fund -- is likely. The Fund's share price is expected to
                      be volatile.
 
                                        5
<PAGE>   36
 
                      No assurance can be given that the Fund will attain its
                      objective or that shareholders will be protected from the
                      risk of loss that is inherent in equity investing.
                      Investors may wish to reduce the potential risk of
                      investing in the Fund by purchasing shares on a periodic
                      basis (dollar-cost averaging) rather than making an
                      investment in one lump sum.
 
                      Investors should not consider the Fund a complete
                      investment program, but should also maintain holdings in
                      investments with different risk characteristics, such as
                      bonds and money market instruments. Investors may also
                      wish to complement an investment in the Fund with other
                      types of common stock investments.
- --------------------------------------------------------------------------------
 
IMPLEMENTATION
OF POLICIES           The Fund follows a number of distinctive investment
                      practices in an effort to achieve its investment
                      objective.
 
A PORTION OF THE
FUND'S ASSETS ARE
MANAGED USING
QUANTITATIVE
TECHNIQUES            Two of the Fund's investment advisers, Franklin Portfolio
                      Associates Trust and Vanguard's Core Management Group, use
                      quantitative investment techniques in managing their
                      respective portions of the Fund's common stock
                      investments. For the portfolio of securities they manage,
                      FPA and Vanguard's Core Management Group independently
                      seek to track and, if possible, outperform the investment
                      returns of the Growth Fund Stock Index.
 
   
                      The Growth Fund Stock Index (the "Index") represents the
                      composite common stock portfolio of the 50 largest growth
                      mutual funds, as calculated by Morningstar, Inc.
                      ("Morningstar"), an independent company which provides
                      mutual fund statistics. The 50 mutual funds included in
                      that Index are determined annually (as of December 31) by
                      Morningstar. For the two quantitative investment managers
                      (FPA and Vanguard's Core Management Group), the Index is
                      an essential tool in developing portfolios that will be
                      designed to track and, hopefully, outperform the Index.
                      For Wellington Management Company, the composition of the
                      Index serves as a guideline for setting portfolio policy.
                      Additionally, for the Fund's unaffiliated investment
                      advisers, the Index is utilized as a benchmark for
                      determining incentive/penalty investment advisory fees.
                      See "Investment Advisers" and the Statement of Additional
                      Information for further information on the Index and its
                      use as a benchmark for incentive/penalty fees.
    
 
THE FUND MAY INVEST
IN SHORT-TERM FIXED
INCOME SECURITIES     Although it normally seeks to remain substantially fully
                      invested in equity securities, the Fund may invest
                      temporarily in certain short-term fixed income securities.
                      Such securities may be used to invest uncommitted cash
                      balances, to maintain liquidity to meet shareholder
                      redemptions, or to take a temporarily defensive position
                      against potential stock market declines. These securities
                      include: obligations of the United States Government and
                      its agencies or instrumentalities; commercial paper, bank
                      certificates of deposit, and bankers' acceptances; and
                      repurchase agreements collateralized by these securities.
                      Approximately 5% of the Fund's net assets are expected to
                      be held as cash reserves, which will be managed by The
                      Vanguard Group, Inc. at no charge to the Fund.
 
                                        6
<PAGE>   37
 
   
THE FUND MAY INVEST
IN SECURITIES OF
FOREIGN ISSUERS       The Fund may hold securities of foreign issuers, but all
                      such securities must be denominated in U.S. dollars.
                      Securities of foreign issuers may trade in U.S. or foreign
                      securities markets. Securities of foreign issuers may
                      involve investment risks that are different from those of
                      domestic issuers. Such risks include the effect of foreign
                      economic policies and conditions, future political and
                      economic developments, and the possible imposition of
                      exchange controls or other foreign governmental
                      restrictions on foreign debt issuers. There may also be
                      less publicly available information about a foreign issuer
                      than a domestic issuer of securities. Foreign issuers are
                      generally not subject to the uniform accounting, auditing
                      and financial reporting standards that apply to domestic
                      issuers. Also, foreign debt markets may be characterized
                      by lower liquidity, greater price volatility, and higher
                      transactions costs. Additionally, it may be difficult to
                      obtain or enforce a legal judgment in a foreign court.
    
 
THE FUND MAY USE
FUTURES CONTRACTS
AND OPTIONS           The Fund may utilize stock futures contracts and options
                      to a limited extent. Specifically, the Fund may enter into
                      futures contracts provided that not more than 5% of its
                      assets are required as a futures contract deposit. In
                      addition, the Fund may enter into futures contracts and
                      options transactions only to the extent that obligations
                      under such contracts or transactions represent not more
                      than 20% of the Fund's assets.
 
FUTURES CONTRACTS AND
OPTIONS POSE CERTAIN
RISKS
                      The primary risks associated with the use of futures
                      contracts and options are: (i) imperfect correlation
                      between the change in market value of the stocks held by
                      the Fund and the prices of futures contracts and options;
                      and (ii) possible lack of a liquid secondary market for a
                      futures contract and the resulting inability to close a
                      futures position prior to its maturity date. The risk of
                      imperfect correlation will be minimized by investing only
                      in those contracts whose behavior is expected to resemble
                      that of the Fund's underlying securities. The risk that
                      the Fund will be unable to close out a futures position
                      will be minimized by entering into such transactions on a
                      national exchange with an active and liquid secondary
                      market.
 
                      The risk of loss in trading futures contracts in some
                      strategies can be substantial, due both to the low margin
                      deposits required and the extremely high degree of
                      leverage involved in futures pricing. As a result, a
                      relatively small price movement in a futures contract may
                      result in immediate and substantial loss (or gain) to the
                      investor. When investing in futures contracts, the Fund
                      will segregate cash or cash equivalents in the amount of
                      the underlying obligation.
 
                      Futures contracts and options may be used for several
                      reasons: to maintain cash reserves while simulating full
                      investment, to facilitate trading, to reduce transaction
                      costs, or to seek higher investment returns when a futures
                      contract is priced more attractively than the underlying
                      equity security or index. While futures contracts and
                      options can be used as leveraged investments, the Fund may
                      not use futures contracts or options transactions to
                      leverage its net assets.
 
THE FUND MAY LEND
ITS SECURITIES
                      The Fund may lend its investment securities on a
                      short-term or long-term basis to qualified institutional
                      investors for the purpose of realizing additional income.
                      Loans of securities by the Fund will be collateralized by
                      cash, letters of credit,
 
                                        7
<PAGE>   38
 
                      or securities issued or guaranteed by the U.S. Government
                      or its agencies. The collateral will equal at least 100%
                      of the current market value of the loaned securities.
 
BORROWING             The Fund may borrow money, subject to the limits set forth
                      in the section "Investment Limitations," for temporary or
                      emergency purposes, including the meeting of redemption
                      requests which might otherwise require the untimely
                      disposition of securities.
 
PORTFOLIO TURNOVER
IS NOT EXPECTED TO
EXCEED 100%           Although it generally seeks to invest for the long term,
                      the Fund retains the right to sell securities irrespective
                      of how long they have been held. It is anticipated that
                      the annual portfolio turnover of the Fund will not exceed
                      100%. A turnover rate of 100% would occur, for example, if
                      all of the securities of the Fund were replaced within one
                      year.
- --------------------------------------------------------------------------------
 
INVESTMENT
LIMITATIONS           The Fund has adopted certain limitations on its investment
                      practices. Specifically, the Fund will not:
 
THE FUND HAS ADOPTED
CERTAIN FUNDAMENTAL
LIMITATIONS
                      (a)  with respect to 75% of the value of its total assets,
                           invest more than 5% of its assets in the securities
                           of any single company;
 
                      (b)  with respect to 75% of the value of its total assets,
                           purchase more than 10% of the voting securities of
                           any issuer;
 
                      (c)  invest more than 25% of its assets in any one
                           industry; and
 
                      (d)  borrow money, except from banks (or through reverse
                           repurchase agreements) for temporary or emergency
                           (not leveraging) purposes, and then not in an amount
                           exceeding 10% of the value of the Fund's net assets
                           at the time the borrowing is made. Whenever borrowing
                           exceeds 5% of the value of the Fund's net assets, the
                           Fund will not make any additional investments.
 
                      These investment limitations are considered at the time
                      investment securities are purchased. The limitations
                      described here and in the Statement of Additional
                      Information may be changed only with the approval of a
                      majority of the Fund's shareholders.
- --------------------------------------------------------------------------------
 
   
MANAGEMENT
OF THE FUND

VANGUARD ADMINISTERS
AND DISTRIBUTES
THE FUND              The Fund is a member of The Vanguard Group of Investment
                      Companies, a family of more than 30 investment companies
                      with more than 80 distinct mutual fund portfolios and
                      total assets in excess of $130 billion. Through their
                      jointly-owned subsidiary, The Vanguard Group, Inc.
                      ("Vanguard"), the Fund and the other funds in the Group
                      obtain at cost virtually all of their corporate
                      management, administrative and distribution services.
                      Vanguard also provides investment advisory services on an
                      at-cost basis to certain Vanguard funds. As a result of
                      Vanguard's unique corporate structure, the Vanguard funds
                      have costs substantially lower than those of most
                      competing mutual funds. In 1994, the average expense ratio
                      (annual costs including advisory fees divided by total net
                      assets) for the Vanguard funds amounted to approximately
                      .30% compared to an average of 1.05% for the mutual fund
                      industry (data provided by Lipper Analytical Services).
    
 
                                        8
<PAGE>   39
 
   
                      The Officers of the Fund manage its day-to-day operations
                      and are responsible to the Fund's Board of Directors. The
                      Directors set broad policies for the Fund and choose its
                      Officers. A list of the Directors and Officers of the Fund
                      and a statement of their present positions and principal
                      occupations during the past five years can be found in the
                      Statement of Additional Information.
    
 
                      Vanguard employs a supporting staff of management and
                      administrative personnel needed to provide the requisite
                      services to the funds and also furnishes the funds with
                      necessary office space, furnishings and equipment. Each
                      fund pays its share of Vanguard's net expenses, which are
                      allocated among the funds under methods approved by the
                      Board of Directors (Trustees) of each fund. In addition,
                      each fund bears its own direct expenses, such as legal,
                      auditing and custodian fees.
 
                      Vanguard provides distribution and marketing services to
                      the funds. The funds are available on a no-load basis
                      (i.e., there are no sales commissions or 12b-1 fees).
- --------------------------------------------------------------------------------
 
   
INVESTMENT
ADVISERS

THE FUND'S ASSETS
ARE MANAGED BY
FOUR ADVISERS         The Fund currently has four investment advisers:
                      Wellington Management Company ("WMC"), 75 State Street,
                      Boston, MA 02109; Franklin Portfolio Associates Trust
                      ("FPA"), One Post Office Square 3660, Boston, MA 02109;
                      Husic Capital Management ("Husic"), 555 California Street,
                      Suite 2900, San Francisco, California 94104, and
                      Vanguard's Core Management Group. Prior to April 24, 1990,
                      WMC was the sole investment adviser to the Fund (then
                      known as W.L. Morgan Growth Fund). FPA was added as an
                      adviser in 1990, while Husic and Core Management were
                      added in 1993.
    
 
   
                      The proportion of the net assets of the Fund managed by
                      each adviser is established by the Board of Directors, and
                      may be changed in the future as circumstances warrant.
                      Presently, WMC is responsible for approximately 40% of the
                      Fund's investments; FPA, Husic and Vanguard's Core
                      Management Group are responsible for approximately 33%,
                      13% and 10%, respectively. (The cash portion of the Fund's
                      net assets is managed by The Vanguard Group, Inc. at no
                      charge to the Fund.)
    
 
                      The Fund has entered into investment advisory agreements
                      with WMC, FPA, and Husic which provide that the advisers
                      manage the investment and reinvestment of the Fund's
                      assets and continuously review, supervise and administer
                      the Fund's investment program. The advisers discharge
                      their responsibilities subject to the control of the
                      Officers and Directors of the Fund.
 
   
. . . WELLINGTON
MANAGEMENT
COMPANY (WMC)         WMC is a professional investment advisory firm which
                      globally provides services to investment companies,
                      institutions, and individuals. Among the clients of WMC
                      are more than 10 of the investment companies of The
                      Vanguard Group. As of December 31, 1994, WMC held
                      discretionary management authority with respect to more
                      than $80 billion of assets. WMC and its predecessor
                      organizations have provided advisory services to
                      investment companies since 1933 and to investment
                      counseling clients since 1960.
    
 
                      Robert D. Rands, Senior Vice President of WMC, serves as
                      portfolio manager of the assets of the Fund assigned to
                      WMC. Mr. Rands has been employed by WMC for
 
                                        9
<PAGE>   40
 
                      16 years and has served as portfolio manager for the Fund
                      since February of 1994. In managing the assets of the Fund
                      assigned to WMC, Mr. Rands is supported by research and
                      other investment services provided by the professional
                      staff of WMC.
 
                      The Fund pays WMC a basic advisory fee calculated by
                      applying varying percentage rates to the average net
                      assets of the Fund managed by WMC. The basic fee schedule
                      is as follows:
 
<TABLE>
<CAPTION>
                            NET ASSETS         RATE
                        ------------------    -------
                        <S>                   <C>
                        First $50 million      0.325%
                        Next $100 million      0.225%
                        Over $150 million      0.150%
</TABLE>
 
                      This basic advisory fee may be increased or decreased by
                      applying an adjustment formula ("incentive/penalty fee")
                      based on WMC's investment performance relative to the
                      investment record of Growth Fund Stock Index. Under the
                      incentive/ penalty fee schedule, the basic fee payable to
                      WMC may be increased or decreased by as much as .075%
                      depending on the investment performance of the equity
                      investments managed by WMC.
 
   
                      To assess the performance of its advisers relative to
                      comparable "growth stock" investments, the Fund has
                      adopted as a benchmark for incentive/penalty fees the
                      Growth Fund Stock Index, an index of the equity holdings
                      of the 50 largest growth stock mutual funds.
    
 
   
. . . FRANKLIN
PORTFOLIO
ASSOCIATES (FPA)      FPA is a professional investment advisory firm which
                      specializes in the management of common stock portfolios
                      through the use of quantitative investment models. Founded
                      in 1982, FPA, a Massachusetts business trust, is a
                      wholly-owned subsidiary of Mellon Financial Services
                      Corporation #1, which itself is a wholly-owned subsidiary
                      of Mellon Bank Corporation. As of December 31, 1994, FPA
                      provided investment advisory services with respect to
                      approximately $6.64 billion of client assets, including
                      $5.9 million in assets for Vanguard Quantitative
                      Portfolios, Inc., another mutual fund member of The
                      Vanguard Group.
    
 
                      FPA employs proprietary computer models in selecting
                      individual equity securities and in structuring investment
                      portfolios for its clients, including the Fund. John J.
                      Nagorniak, President of FPA, has been designated as the
                      portfolio manager of the assets of the Fund assigned to
                      FPA; he is responsible for overseeing the application of
                      FPA's quantitative techniques to those assets. Mr.
                      Nagorniak and the other investment principals of FPA are
                      responsible for the ongoing development and enhancement of
                      FPA's quantitative investment techniques.
 
                                       10
<PAGE>   41
 
                      The Fund pays FPA a basic advisory fee calculated by
                      applying varying percentage rates to the average net
                      assets of the Fund managed by FPA. The basic fee schedule
                      is as follows:
 
   
<TABLE>
<CAPTION>
                            NET ASSETS         RATE
                        ------------------    ------
                        <S>                   <C>
                        First $100 million     0.25%
                        Next $200 million      0.20%
                        Over $300 million      0.15%
</TABLE>
    
 
                      This basic advisory fee may be increased or decreased by
                      applying an incentive/ penalty fee based on FPA's
                      investment performance relative to the investment record
                      of the Growth Fund Stock Index. Under the
                      incentive/penalty fee schedule, the basic fee payable to
                      FPA may be increased or decreased by as much as .10%
                      depending on the investment performance of the equity
                      investments managed by FPA.
 
... AND HUSIC CAPITAL
MANAGEMENT (HUSIC)    Vanguard/Morgan Growth Fund also employs Husic Capital
                      Management ("Husic"), 555 California Street, Suite 2900,
                      San Francisco, California 94104 as an investment adviser
                      for approximately 13% of its investments.
 
                      For the services provided by Husic under the investment
                      advisory agreement the Fund will pay Husic a basic fee at
                      the end of each fiscal quarter, calculated by applying a
                      quarterly rate, based on the following annual percentage
                      rates, to the average month-end net assets of the Husic
                      Portfolio for the quarter:
 
<TABLE>
<CAPTION>
                            NET ASSETS         RATE
                        ------------------    ------
                        <S>                   <C>
                        First $25 million      0.40%
                        Next $125 million      0.35%
                        Next $350 million      0.25%
                        Next $500 million      0.20%
                        Over $1 billion        0.15%
</TABLE>
 
   
                      Effective with the quarter ending September 30, 1994, the
                      basic fee paid to Husic, as provided above, may be
                      increased or decreased by applying an incentive/penalty
                      fee based on the investment performance of the Husic
                      Portfolio relative to the investment record of the Growth
                      Fund Stock Index. Under the incentive/penalty fee
                      schedule, the basic fee payable to Husic may be increased
                      or decreased by as much as 75% of the basic fee depending
                      on the investment performance of the equity investment
                      managed by Husic.
    
 
                      Under rules of the Securities and Exchange Commission, the
                      incentive/penalty fee structure will not be fully operable
                      until the quarter ending September 30, 1996, and, until
                      that date, will be calculated according to certain
                      transition rules. See the Statement of Additional
                      Information for a detailed description of the incentive/
                      penalty fee schedule for Husic and the applicable
                      transition rules.
 
   
                      For the fiscal year ended December 31, 1994, the aggregate
                      investment advisory fees paid by Vanguard/Morgan Growth
                      Fund represented an effective annual rate of .19 of 1% of
                      average net assets, before a net decrease of .05 of 1%
                      based on
    
 
                                       11
<PAGE>   42
 
   
                      performance. The investment advisory fees paid by the Fund
                      for this period to WMC, FPA and Husic represented an
                      effective annual rate of .12, .19 and .23 of 1%,
                      respectively, of the average net assets managed by WMC,
                      FPA and Husic.
    
 
   
VANGUARD MANAGES
A PORTION OF THE
FUND'S ASSETS ON
AN AT-COST BASIS      Vanguard's Core Management Group provides investment
                      advisory services on an at-cost basis with respect to a
                      portion of the Fund's assets (currently approximately
                      10%). The Core Management Group also provides investment
                      advisory services to several Vanguard Funds and to several
                      indexed separate accounts. Total assets under management
                      by the Core Management Group were approximately $18
                      billion as of December 31, 1994. The portion of the Fund
                      allocated to the Core Management Group is managed using
                      computerized, quantitative techniques based on a value
                      index constructed to approximate the aggregate fundamental
                      characteristics of a typical broadly diversified growth
                      fund such as Vanguard/Morgan Growth Fund. For further
                      information concerning the index, please refer to the
                      Statement of Additional Information. The Core Management
                      Group is supervised by the Officers of the Fund.
    
 
                      WMC, FPA, Husic and Vanguard's Core Management Group are
                      authorized to select brokers or dealers to execute the
                      purchase and sale of the Fund's portfolio securities, and
                      direct the advisers to use their best efforts to obtain
                      the best available price and most favorable execution with
                      respect to all transactions. The full range and quality of
                      brokerage services available are considered in making
                      their determinations.
 
                      The Fund has authorized WMC, FPA, Husic and Vanguard's
                      Core Management Group to pay higher commissions in
                      recognition of brokerage services felt necessary for the
                      achievement of better execution, provided the advisers
                      believe this to be in the best interests of the Fund.
                      Although the Fund does not market its shares through
                      intermediary brokers or dealers, the Fund's advisers may
                      place orders with qualified broker-dealers who recommend
                      the Fund to clients if the Officers of the Fund believe
                      that the quality of the transaction and the commission are
                      comparable to what they would be with other qualified
                      brokerage firms.
 
   
                      The Fund's Board of Directors may, without the approval of
                      shareholders, provide for: (a) the employment of a new
                      investment adviser pursuant to the terms of a new advisory
                      agreement either as a replacement for an existing adviser
                      or as an additional adviser; (b) a change in the terms of
                      an advisory agreement; and (c) the continued employment of
                      an existing adviser on the same advisory contract terms
                      where a contract has been assigned because of a change in
                      control of the adviser. Any such change will only be made
                      upon not less than 30 days' prior written notice to
                      shareholders of the Fund which shall include substantially
                      the information concerning the adviser that would have
                      normally been included in a proxy statement.
    
- --------------------------------------------------------------------------------
 
PERFORMANCE
RECORD                The table on page 13 provides investment results for the
                      Fund for several periods throughout the Fund's lifetime.
                      The results shown represent "total return" investment
                      performance, which assumes the reinvestment of all capital
                      gains and income dividends for the indicated periods. Also
                      included is comparative information with respect to the
                      unmanaged Standard & Poor's 500 Composite Stock Price
 
                                       12
<PAGE>   43
 
                      Index, a widely-used barometer of stock market activity,
                      and the Consumer Price Index, a statistical measure of
                      changes in the prices of goods and services. The table
                      does not make any allowance for federal, state or local
                      income taxes, which shareholders must pay on a current
                      basis.
 
                      The results should not be considered a representation of
                      the total return from an investment made in the Fund
                      today. This information is provided to help investors
                      better understand the Fund and may not provide a basis for
                      comparison with other investments or mutual funds which
                      use a different method to calculate performance.
 
   
<TABLE>
<CAPTION>
                                                    AVERAGE ANNUAL RETURN FOR
                                                   VANGUARD/MORGAN GROWTH FUND
                                           -------------------------------------------
                        FISCAL PERIODS     VANGUARD/MORGAN     S&P 500      CONSUMER
                        ENDED 12/31/94       GROWTH FUND        INDEX      PRICE INDEX
                        --------------     ---------------     -------     -----------
                        <S>                <C>                 <C>         <C>
                        1 Year                  - 1.7%          + 1.3%         +2.7%
                        5 Years                 + 8.0           + 8.7          +3.5
                        10 Years                +12.5           +14.3          +3.6
                        Lifetime*               +10.7           +10.1          +5.7
                        * December 31, 1968 to December 31, 1994.
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
DIVIDENDS,
CAPITAL GAINS
AND TAXES

THE FUND PAYS
DIVIDENDS AND ANY
CAPITAL GAINS
ANNUALLY              The Fund expects to pay dividends annually from ordinary
                      income. Net capital gains distributions, if any, will also
                      be made annually. Dividend and capital gains distributions
                      may be automatically reinvested in additional shares. The
                      Fund is managed without regard to tax ramifications. The
                      Fund intends to continue to qualify for taxation as a
                      "regulated investment company" under the Internal Revenue
                      Code so that it will not be subject to federal income tax
                      to the extent its income is distributed to shareholders.
 
                      If you utilize the Fund as an investment option in an
                      employer-sponsored retirement savings plan, dividend and
                      capital gains distributions from the Fund ordinarily will
                      not be subject to current taxation, but will accumulate on
                      a tax-deferred basis. In general, employer-sponsored
                      retirement and savings plans are governed by complex tax
                      rules. If you participate in such a plan, consult your
                      plan administrator, your plan's Summary Plan Description,
                      or a professional tax adviser regarding the tax
                      consequences of your participation in the plan and of any
                      plan contributions or withdrawals.
- --------------------------------------------------------------------------------
 
THE SHARE PRICE
OF THE FUND           The Fund's share price or "net asset value" per share is
                      determined by dividing the total market value of the
                      Fund's investments and other assets, less any liabilities,
                      by the number of outstanding shares of the Fund. Net asset
                      value per share is determined once daily at the close of
                      regular trading on the New York Stock Exchange (generally
                      4:00 p.m. Eastern time) on each day that the Exchange is
                      open for business. Portfolio securities that are listed on
                      a securities exchange are valued at the last quoted sales
                      price on the day the valuation is made. Price information
                      on listed securities is taken from the exchange where the
                      security is primarily traded. Securities which are listed
                      on an exchange and which are not traded on the valuation
                      date are valued at the mean between the latest quoted bid
 
                                       13
<PAGE>   44
 
                      and ask prices. Unlisted securities for which market
                      quotations are readily available are valued at the latest
                      quoted bid price. Other assets and securities for which no
                      quotations are readily available are valued at fair value
                      as determined in good faith by the Directors. Securities
                      may be valued on the basis of prices provided by a pricing
                      service when such prices are believed to reflect the fair
                      market value of such securities.
 
                      The Fund's share price can be found daily in the mutual
                      fund listings of most major newspapers under the heading
                      of The Vanguard Group.
- --------------------------------------------------------------------------------
 
GENERAL
INFORMATION           The Fund is a Maryland corporation. The Articles of
                      Incorporation permit the Directors to issue 150,000,000
                      shares of common stock, with a $.10 par value. The Board
                      of Directors has the power to designate one or more
                      classes ("series") of shares of common stock and to
                      classify or reclassify any unissued shares with respect to
                      such series. Currently the Fund is offering one class of
                      shares.
 
                      The shares of the Fund are fully paid and non-assessable;
                      have no preference as to conversion, exchange, dividends,
                      retirement or other features; and have no pre-emptive
                      rights. Such shares have non-cumulative voting rights,
                      meaning that the holders of more than 50% of the shares
                      voting for the election of Directors can elect 100% of the
                      Directors if they so choose.
 
                      Annual meetings of shareholders will not be held except as
                      required by the Investment Company Act of 1940 and other
                      applicable law. An annual meeting will be held to vote on
                      the removal of a Director or Directors of the Fund if
                      requested in writing by the holders of not less than 10%
                      of the outstanding shares of the Fund.
 
   
                      All securities and cash are held by State Street Bank and
                      Trust Company, Boston, MA. The Vanguard Group, Inc.,
                      Valley Forge, PA, serves as the Fund's Transfer and
                      Dividend Disbursing Agent. Price Waterhouse LLP, serves as
                      independent accountants for the Fund and will audit its
                      financial statements annually. The Fund is not involved in
                      any litigation.
    
- --------------------------------------------------------------------------------
 
                                       14
<PAGE>   45
 
                                 SERVICE GUIDE
 
PARTICIPATING IN
YOUR PLAN             The Fund is available as an investment option in your
                      retirement or savings plan. The administrator of your plan
                      or your employee benefits office can provide you with
                      detailed information on how to participate in your plan
                      and how to elect the Fund as an investment option.
 
                      If you have any questions about the Fund, including the
                      Fund's investment objective, policies, risk
                      characteristics or historical performance, please contact
                      Participant Services (1-800-523-1188).
 
                      If you have questions about your account, contact your
                      plan administrator or the organization which provides
                      recordkeeping services for your plan.
- --------------------------------------------------------------------------------
 
INVESTMENT OPTIONS
AND ALLOCATIONS       You may be permitted to elect different investment
                      options, alter the amounts contributed to your plan, or
                      change how contributions are allocated among your
                      investment options in accordance with your plan's specific
                      provisions. See your plan administrator or employee
                      benefits office for more details.
- --------------------------------------------------------------------------------
 
TRANSACTIONS IN
FUND SHARES           Contributions, exchanges or redemptions of the Fund's
                      shares are effective when received in "good order" by
                      Vanguard. "Good order" means that complete information on
                      the contribution, exchange or redemption and the
                      appropriate monies have been received by Vanguard.
- --------------------------------------------------------------------------------
 
MAKING EXCHANGES      Your plan may allow you to exchange monies from one
                      investment option to another. However, the Fund reserves
                      the right to refuse any exchange purchase request. Check
                      with your plan administrator for details on the rules
                      governing exchanges in your plan. Certain investment
                      options, particularly company stock or investment
                      contracts, may be subject to unique restrictions.
 
                      Before making an exchange, you should consider the
                      following:
 
                      - If you are making an exchange to another Vanguard Fund
                        option, please read the Fund's prospectus. Contact
                        Participant Services (1-800-523-1188) for a copy.
 
                      - Exchanges are accepted by Vanguard only as permitted by
                        your plan. Your plan administrator can explain how
                        frequently exchanges are allowed.
- --------------------------------------------------------------------------------
 
                                       15
<PAGE>   46
 
   
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<PAGE>   47
 
   
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<PAGE>   48
 
   
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<PAGE>   49
 
   
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<PAGE>   50
 
- --------------------------------------------------------------------------------
   
                                        
                 [VANGUARD                           [VANGUARD
                  MORGAN                              MORGAN
                GROWTH FUND                         GROWTH FUND
                   LOGO]                               LOGO]
                                    


        ---------------------------       I  N  S  T  I  T  U  T  I  O  N  A  L
        THE VANGUARD GROUP                    P  R  O  S  P  E  C  T  U  S
          OF INVESTMENT                                             
          COMPANIES                                  APRIL 26, 1995 
        Vanguard Financial Center   
        P.O. Box 2900               
        Valley Forge, PA 19482      

        INSTITUTIONAL PARTICIPANT   
          SERVICES DEPARTMENT:        
        1-800-523-1188              
  
        TRANSFER AGENT:             
        The Vanguard Group, Inc.    
        Vanguard Financial Center   
        Valley Forge, PA 19482      




        I026                                   [VANGUARD GROUP LOGO]
                                        
- --------------------------------------------------------------------------------
<PAGE>   51
 
                                     PART B
 
                       VANGUARD/MORGAN GROWTH FUND, INC.
 
                      STATEMENT OF ADDITIONAL INFORMATION
 
                                 APRIL 26, 1995
 
     This Statement is not a prospectus but should be read in conjunction with
the Fund's current Prospectus (dated April 26, 1995). To obtain the Prospectus
please call the Investor Information Department:
 
                                 1-800-662-7447
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                            PAGE
                                                                                            ----
<S>                                                                                         <C>
Investment Objective and Policies.........................................................     1
Investment Limitations....................................................................     5
Purchase of Shares........................................................................     6
Redemption of Shares......................................................................     6
Management of the Fund....................................................................     7
Investment Advisory Services..............................................................    10
Portfolio Transactions....................................................................    16
Yield and Total Return....................................................................    17
Performance Measures......................................................................    17
Financial Statements......................................................................    20
Appendix -- Description of Securities.....................................................    20
</TABLE>
 
                       INVESTMENT OBJECTIVE AND POLICIES
 
     PORTFOLIO TURNOVER  While the rate of portfolio turnover is not a limiting
factor when management deems changes appropriate, it is anticipated that the
Fund's annual portfolio turnover rate will not normally exceed 100%. A rate of
turnover of 100% could occur, for example, if all of the securities in the
Fund's portfolio are replaced within a period of one year. The Fund's portfolio
turnover rate for each of its last ten fiscal years is set forth under
"Financial Highlights," in the Fund's Prospectus.
 
     REPURCHASE AGREEMENTS  The Fund may invest in repurchase agreements with
commercial banks, brokers or dealers either for defensive purposes due to market
conditions or to generate income from its excess cash balances. A repurchase
agreement is an agreement under which the Fund acquires a money market
instrument (generally a security issued by the U.S. Government or an agency
thereof, a banker's acceptance or a certificate of deposit) from a commercial
bank, broker or dealer, subject to resale to the seller at an agreed upon price
and date (normally, the next business day). A repurchase agreement may be
considered a loan collateralized by securities. The resale price reflects an
agreed upon interest rate effective for the period the instrument is held by the
Fund and is unrelated to the interest rate on the underlying instrument. In
these transactions, the securities acquired by the Fund (including accrued
interest earned thereon) must have a total value in excess of the value of the
repurchase agreement and are held by the Fund's custodian bank until
repurchased. In addition, the Fund's Board of Directors will monitor the Fund's
repurchase agreement transactions generally and will establish guidelines and
standards for review by the investment adviser of the creditworthiness of any
bank, broker or dealer party to a repurchase agreement with the Fund. No more
than an aggregate of 15% of the Fund's assets, at the time of investment, will
be invested in repurchase agreements having maturities longer than seven days
and securities subject to legal or contractual restrictions on resale, or for
which there are no readily available market quotations.
 
     The use of repurchase agreements involves certain risks. For example, if
the other party to the agreement defaults on its obligation to repurchase the
underlying instrument at a time when the value of the security has declined, the
Fund may incur a loss upon disposition of the security. If the other party to
the agreement becomes insolvent and subject to liquidation or reorganization
under the Bankruptcy Code or other laws, a court may
 
                                        1
<PAGE>   52
 
determine that the underlying security is collateral for a loan by the Fund not
within the control of the Fund and therefore the realization by the Fund on such
collateral may be automatically stayed. Finally, it is possible that the Fund
may not be able to substantiate its interest in the underlying security and may
be deemed an unsecured creditor of the other party to the agreement. While the
Fund's management acknowledges these risks, it is expected that they can be
controlled through careful monitoring procedures.
 
     LENDING OF SECURITIES  The Fund may lend its securities on a short-term or
long-term basis to qualified institutional investors who need to borrow
securities in order to complete certain transactions, such as covering short
sales, avoiding failures to deliver securities or completing arbitrage
operations. By lending its portfolio securities, the Fund attempts to increase
its net investment income through the receipt of interest on the loan. Any gain
or loss in the market price of the securities loaned that might occur during the
term of the loan would be for the account of the Fund. The Fund may lend its
portfolio securities to qualified brokers, dealers, banks or other financial
institutions, so long as the terms, the structure and the aggregate amount of
such loans are not inconsistent with the Investment Company Act of 1940, or the
Rules and Regulations or interpretations of the Securities and Exchange
Commission (the "Commission") thereunder, which currently require that (a) the
borrower pledge and maintain with the Fund collateral consisting of cash, an
irrevocable letter of credit issued by a domestic U.S. bank, or securities
issued or guaranteed by the U.S. Government having a value at all times not less
than 100% of the value of the securities loaned, (b) the borrower add to such
collateral whenever the price of the securities loaned rises (i.e. the borrower
"marks to the market" on a daily basis), (c) the loan be made subject to
termination by the Fund at any time and (d) the Fund receive reasonable interest
on the loan (which may include the Fund's investing any cash collateral in
interest bearing short-term investments), any distribution on the loaned
securities and any increase in their market value. Loan arrangements made by the
Fund will comply with all other applicable regulatory requirements, including
the rules of the New York Stock Exchange, which rules presently require the
borrower, after notice, to redeliver the securities within the normal settlement
time of five business days. All relevant facts and circumstances, including the
creditworthiness of the broker, dealer or institution, will be considered in
making decisions with respect to the lending of securities, subject to review by
the Fund's Board of Directors.
 
     At the present time, the Staff of the Commission does not object if an
investment company pays reasonable negotiated fees in connection with loaned
securities, so long as such fees are set forth in a written contract and
approved by the investment company's directors. In addition, voting rights may
pass with the loaned securities, but if a material event will occur affecting an
investment on loan, the loan must be called and the securities voted.
 
     FUTURES CONTRACTS  The Fund may enter into futures contracts, options, and
options on futures contracts for the purpose of remaining fully invested and
reducing transactions costs. Futures contracts provide for the future sale by
one party and purchase by another party of a specified amount of a specific
security at a specified future time and at a specified price. Futures contracts
which are standardized as to maturity date and underlying financial instrument
are traded on national futures exchanges. Futures exchanges and trading are
regulated under the Commodity Exchange Act by the Commodity Futures Trading
Commission ("CFTC"), a U.S. Government Agency.
 
     Although futures contracts by their terms call for actual delivery or
acceptance of the underlying securities, in most cases the contracts are closed
out before the settlement date without the making or taking of delivery. Closing
out an open futures position is done by taking an opposite position ("buying" a
contract which has previously been "sold," or "selling" a contract previously
purchased) in an identical contract to terminate the position. Brokerage
commissions are incurred when a futures contract is bought or sold.
 
     Futures traders are required to make a good faith margin deposit in cash or
government securities with a broker or custodian to initiate and maintain open
positions in futures contracts. A margin deposit is intended to assure
completion of the contract (delivery or acceptance of the underlying security)
if it is not terminated prior to the specified delivery date. Minimal initial
margin requirements are established by the futures exchange and may be changed.
Brokers may establish deposit requirements which are higher than the exchange
minimums. Futures contracts are customarily purchased and sold on margin which
may range upward from less than 5% of the value of the contract being traded.
 
                                        2
<PAGE>   53
 
     After a futures contract position is opened, the value of the contract is
marked to market daily. If the futures contract price changes to the extent that
the margin on deposit does not satisfy margin requirements, payment of
additional "variation" margin will be required. Conversely, change in the
contract value may reduce the required margin, resulting in a repayment of
excess margin to the contract holder. Variation margin payments are made to and
from the futures broker for as long as the contract remains open. The Fund
expects to earn interest income on its margin deposits.
 
     Traders in futures contracts may be broadly classified as either "hedgers"
or "speculators." Hedgers use the futures markets primarily to offset
unfavorable changes in the value of securities otherwise held for investment
purposes or expected to be acquired by them. Speculators are less inclined to
own the securities underlying the futures contracts which they trade, and use
futures contracts with the expectation of realizing profits from fluctuations in
the prices of underlying securities. The Fund intends to use futures contracts
only for bona fide hedging purposes.
 
     Regulations of the CFTC applicable to the Fund require that all of its
futures transactions constitute bona fide hedging transactions. The Fund will
only sell futures contracts to protect securities it owns against price declines
or purchase contracts to protect against an increase in the price of securities
it intends to purchase. As evidence of this hedging interest, the Fund expects
that approximately 75% of its futures contract purchases will be "completed,"
that is, equivalent amounts of related securities will have been purchased or
are being purchased by the Fund upon sale of open futures contracts.
 
     Although techniques other than the sale and purchase of futures contracts
could be used to control the Fund's exposure to market fluctuations, the use of
futures contracts may be a more effective means of hedging this exposure. While
the Fund will incur commission expenses in both opening and closing out futures
positions, these costs are lower than transaction costs incurred in the purchase
and sale of the underlying securities.
 
     RESTRICTIONS ON THE USE OF FUTURES CONTRACTS  The Fund will not enter into
futures contract transactions to the extent that, immediately thereafter, the
sum of its initial margin deposits on open contracts exceeds 5% of the market
value of the Fund's total assets. In addition, the Fund will not enter into
futures contracts to the extent that its outstanding obligations to purchase
securities under these contracts would exceed 20% of the Fund's total assets.
 
     RISK FACTORS IN FUTURES TRANSACTIONS  Positions in futures contracts may be
closed out only on an Exchange which provides a secondary market for such
futures. However, there can be no assurance that a liquid secondary market will
exist for any particular futures contract at any specific time. Thus, it may not
be possible to close a futures position. In the event of adverse price
movements, the Fund would continue to be required to make daily cash payments to
maintain its required margin. In such situations, if the Fund has insufficient
cash, it may have to sell portfolio securities to meet daily margin requirements
at a time when it may be disadvantageous to do so. In addition, the Fund may be
required to make delivery of the instruments underlying futures contracts it
holds. The inability to close options and futures positions also could have an
adverse impact on the ability to effectively hedge it.
 
     The Fund will minimize the risk that it will be unable to close out a
futures contract by only entering into futures which are traded on national
futures exchanges and for which there appears to be a liquid secondary market.
The principal interest rate futures exchanges in the United States are the Board
of Trade of the City of Chicago and the Chicago Mercantile Exchange.
 
     The risk of loss in trading futures contracts in some strategies can be
substantial, due both to the low margin deposits required, and the extremely
high degree of leverage involved in futures pricing. As a result, a relatively
small price movement in a futures contract may result in immediate and
substantial loss (as well as gain) to the investor. For example, if at the time
of purchase, 10% of the value of the futures contract is deposited as margin, a
subsequent 10% decrease in the value of the futures contract would result in a
total loss of the margin deposit, before any deduction for the transaction
costs, if the account were then closed out. A 15% decrease would result in a
loss equal to 150% of the original margin deposit if the contract were closed
out. Thus, a purchase or sale of a futures contract may result in losses in
excess of the amount invested in the
 
                                        3
<PAGE>   54
 
contract. However, because the futures strategies of the Fund are engaged in
only for hedging purposes, the Adviser does not believe that the Fund is subject
to the risks of loss frequently associated with futures transactions. The Fund
would presumably have sustained comparable losses if, instead of the futures
contract, it had invested in the underlying financial instrument and sold it
after the decline.
 
     Utilization of futures transactions by the Fund does involve the risk of
imperfect or no correlation where the securities underlying futures contracts
have different maturities than the portfolio securities being hedged. It is also
possible that the Fund could both lose money on futures contracts and also
experience a decline in value of its portfolio securities. There is also the
risk of loss by the Fund of margin deposits in the event of bankruptcy of a
broker with whom the Fund has an open position in a futures contract or related
option. Additionally, investments in futures contracts and options involve the
risk that the investment advisers will incorrectly predict stock market and
interest rate trends.
 
     Most futures exchanges limit the amount of fluctuation permitted in futures
contract prices during a single trading day. The daily limit establishes the
maximum amount that the price of a futures contract may vary either up or down
from the previous day's settlement price at the end of a trading session. Once
the daily limit has been reached in a particular type of contract, no trades may
be made on that day at a price beyond that limit. The daily limit governs only
price movement during a particular trading day and therefore does not limit
potential losses, because the limit may prevent the liquidation of unfavorable
positions. Futures contract prices have occasionally moved to the daily limit
for several consecutive trading days with little or no trading, thereby
preventing prompt liquidation of future positions and subjecting some futures
traders to substantial losses.
 
     FEDERAL TAX TREATMENT OF FUTURES CONTRACTS  The Fund is required for
federal income tax purposes to recognize as income for each taxable year its net
unrealized gains and losses on certain futures contracts as of the end of the
year as well as those actually realized during the year. In most cases, any gain
or loss recognized with respect to a futures contract is considered to be 60%
long-term capital gain or loss and 40% short-term capital gain or loss, without
regard to the holding period of the contract. Furthermore, sales of futures
contracts which are intended to hedge against a change in the value of
securities held by the Fund may affect the holding period of such securities
and, consequently, the nature of the gain or loss on such securities upon
disposition. A Fund may be required to defer the recognition of losses on
futures contracts to the extent of any unrecognized gains on related positions
held by the Fund.
 
     In order for the Fund to continue to qualify for federal income tax
treatment as a regulated investment company, at least 90% of its gross income
for a taxable year must be derived from qualifying income; i.e., dividends,
interest, income derived from loans of securities, gains from the sale of
securities or of foreign currencies or other income derived with respect to the
Fund's business of investing in securities. In addition, gains realized on the
sale or other disposition of securities held for less than three months must be
limited to less than 30% of the Fund's annual gross income. It is anticipated
that any net gain realized from the closing out of futures contracts will be
considered gain from the sale of securities and therefore be qualifying income
for purposes of the 90% requirement. In order to avoid realizing excessive gains
on securities held less than three months, the Fund may be required to defer the
closing out of futures contracts beyond the time when it would otherwise be
advantageous to do so. It is anticipated that unrealized gains on futures
contracts, which have been open for less than three months as of the end of the
Fund's fiscal year and which are recognized for tax purposes, will not be
considered gains on sales of securities held less than three months for the
purpose of the 30% test.
 
     The Fund will distribute to shareholders annually any net capital gains
which have been recognized for federal income tax purposes (including unrealized
gains at the end of the Fund's fiscal year) on futures transactions. Such
distributions will be combined with distributions of capital gains realized on
the Fund's other investments and shareholders will be advised on the nature of
the distributions.
 
                                        4
<PAGE>   55
 
                             INVESTMENT LIMITATIONS
 
     The following restrictions and fundamental policies (except for item 10
which is not a "fundamental" policy) cannot be changed without approval of the
holders of a majority of the outstanding shares of the Fund (as defined in the
Investment Company Act of 1940). The Fund may not under any circumstances:
 
      1) Borrow money, except from banks (or through reverse repurchase
         agreements), for temporary or emergency (not leveraging) purposes, and
         then in an amount not exceeding 10% of the value of the Fund's net
         assets (including the amount borrowed and the value of any outstanding
         reverse repurchase agreements) at the time the borrowing is made.
         Whenever borrowings exceed 5% of the value of the Fund's net assets,
         the Fund will not make any additional investments;
 
      2) With respect to 75% of the value of its total assets, purchase the
         securities of any issuer (except obligations of the United States
         government and its instrumentalities) if as a result the Fund would
         hold more than 10% of the outstanding voting securities of the issuer,
         or more than 5% of the value of the Fund's total assets would be
         invested in the securities of such issuer;
 
      3) Invest for the purpose of exercising control of management of any
         company;
 
      4) Will not invest in securities of other investment companies, except as
         may be acquired as a part of a merger, consolidation or acquisition of
         assets approved by the Fund's shareholders or otherwise to the extent
         permitted by Section 12 of the Investment Company Act of 1940. The Fund
         will invest only in investment companies which have investment
         objectives and investment policies consistent with those of the Fund;
 
      5) Engage in the business of underwriting securities issued by others,
         except to the extent that the Fund may technically be deemed to be an
         underwriter under the Securities Act of 1933, as amended, in disposing
         of portfolio securities;
 
      6) Purchase or otherwise acquire any security if, as a result, more than
         15% of its net assets would be invested in securities that are illiquid
         (including the Fund's investment in The Vanguard Group, Inc., as
         described on page 8);
 
      7) Invest in commodities (except that the Fund may invest in stock futures
         contracts and options to the extent that not more than 5% of the Fund's
         assets are required as deposit to secure obligations under futures
         contracts and not more than 20% of the Fund's assets are invested in
         futures and options at any time) or real estate although the Fund may
         purchase and sell securities of companies which deal in real estate, or
         interests therein;
 
      8) Purchase securities on margin or sell any securities short (except as
         specified in 7) above;
 
      9) Invest more than 5% of the assets of the Fund, at the time of
         investment, in the securities of any issuers which have (with
         predecessors) a record of less than three years' continuous operation;
 
     10) Lend money to any person except (i) by purchasing bonds, debentures or
         similar obligations (including repurchase agreements) which are either
         publicly distributed or customarily purchased by institutional
         investors, and (ii) by lending its portfolio securities as provided
         under "Lending of Securities";
 
     11) Pledge, mortgage, or hypothecate any of its assets to an extent greater
         than 5% of its total assets; and
 
     12) Invest more than 25% of the value of its total assets in any one
         industry.
 
     These investment limitations are considered at the time investment
securities are purchased.
 
     Although not fundamental policies subject to shareholder vote, as long as
the Fund's shares are registered for sale in certain states, it will not (i)
invest in put, call, straddle or spread options, and (ii) invest in interests in
oil, gas or other mineral exploration or development programs.
 
     Each Portfolio may not purchase or retain securities of an issuer if an
officer or director of such issuer is an officer or Director of the Fund or its
investment adviser and one or more of such officers or Directors of the
 
                                        5
<PAGE>   56
 
Fund or its investment adviser owns beneficially more than  1/2% of the shares
or securities of such issuer and all such directors and officers owning more
than  1/2% of such shares or securities together own more than 5% of such shares
or securities.
 
     Notwithstanding these limitations, the Fund may own all or any portion of
the securities of, or make loans to, or contribute to the costs or other
financial requirements of any company which will be wholly owned by the Fund and
one or more other investment companies and is primarily engaged in the business
of providing, at-cost, management, administrative, distribution or related
services to the Fund and other investment companies. See "Management of the
Fund."
 
                               PURCHASE OF SHARES
 
     The Fund reserves the right in its sole discretion (i) to suspend the
offerings of its shares, (ii) to reject purchase orders when in the judgment of
management such rejection is in the best interest of the Fund, and (iii) to
reduce or waive the minimum for initial and subsequent investments for certain
fiduciary accounts or under circumstances where certain economies can be
achieved in sales of the Fund's shares.
 
                              REDEMPTION OF SHARES
 
     The Fund may suspend redemption privileges or postpone the date of payment
(i) during any period that the New York Stock Exchange is closed, or trading on
the Exchange is restricted as determined by the Securities and Exchange
Commission (the "Commission"), (ii) during any period when an emergency exists
as defined by the rules of the Commission as a result of which it is not
reasonably practicable for the Fund to dispose of securities owned by it, or
fairly to determine the value of its assets, and (iii) for such other periods as
the Commission may permit.
 
     The Fund has made an election with the Commission to pay in cash all
redemptions requested by any shareholder of record limited in amount during any
90-day period to the lesser of $250,000 or 1% of the net assets of the Fund at
the beginning of such period. Such commitment is irrevocable without the prior
approval of the Commission. Redemptions in excess of the above limits may be
paid in whole or in part, in investment securities or in cash, as the Directors
may deem advisable; however, payment will be made wholly in cash unless the
Directors believe that economic or market conditions exist which would make such
a practice detrimental to the best interests of the Fund. If redemptions are
paid in investment securities, such securities will be valued as set forth in
the Prospectus under "The Fund's Share Price" and a redeeming shareholder would
normally incur brokerage expenses if he converted these securities to cash.
 
     No charge is made by the Fund for redemptions. Any redemption may be more
or less than the shareholder's cost depending on the market value of the
securities held by the Fund.
 
                                        6
<PAGE>   57
 
                             MANAGEMENT OF THE FUND
 
OFFICERS AND DIRECTORS
 
     The Fund's officers, under the supervision of the Board of Directors,
manage the day-to-day operations of the Fund. The Directors, who are elected
annually by shareholders, set broad policies for the Fund and choose its
officers. A list of the Directors and officers of the Fund and a brief statement
of their present positions and principal occupations during the past 5 years is
set forth below. The mailing address of the Directors and officers of the Fund
is Post Office Box 876, Valley Forge, PA 19487.
 
<TABLE>
<S>                                                <C>
JOHN C. BOGLE, Chairman, Chief Executive           ALFRED M. RANKIN, JR., Director
  Officer and Director*                            Chairman, President, and Chief Executive
  Chairman, Chief Executive Officer, and           Officer of NACCO Industries, Inc.; Director of
  Director of The Vanguard Group, Inc., and          The BFGoodrich Company, The Standard
  each of the investment companies in The            Products Company and The Reliance Electric
  Vanguard Group; Director of The Mead               Company.
  Corporation, and General Accident Insurance.   
                                                   JOHN C. SAWHILL,
JOHN J. BRENNAN, President & Director*             President and Chief Executive Officer, The
  President and Director of The Vanguard           Nature Conservancy; formerly, Director and
  Group, Inc., and of each of the investment         Senior Partner, McKinsey & Co.; President,
  companies in The Vanguard Group.                   New York University; Director of Pacific Gas
                                                     and Electric Company and NACCO Industries.
ROBERT E. CAWTHORN, Director
  Chairman of Rhone-Poulenc Rorer, Inc.;           JAMES O. WELCH, JR., Director
  Director of Sun Company, Inc.                    Retired Chairman of Nabisco Brands, Inc.,
                                                   retired Vice Chairman and Director of RJR
BARBARA BARNES HAUPTFUHRER, Director                 Nabisco; Director of TECO Energy, Inc.
  Director of The Great Atlantic and Pacific
  Tea Company, ALCO Standard Corp., Raytheon       J. LAWRENCE WILSON, Director
  Company, Knight-Ridder, Inc., and                Chairman and Chief Executive Officer of Rohm &
  Massachusetts Mutual Life Insurance Co. and      Haas Company; Director of Cummins Engine
  Trustee Emerita of Wellesley College.              Company; Trustee of Vanderbilt University
                                                     and the Culver Educational Foundation.
BRUCE K. MACLAURY, Director
  President, The Brookings Institution;            RAYMOND J. KLAPINSKY, Secretary*
  Director of American Express Bank, Ltd., The     Senior Vice President and Secretary of The
  St. Paul Companies, Inc. and Scott Paper         Vanguard Group, Inc.; Secretary of each of the
  Company.                                           investment companies in The Vanguard Group.

BURTON G. MALKIEL, Director                        RICHARD F. HYLAND, Treasurer*
  Chemical Bank Chairman's Professor of            Treasurer of The Vanguard Group, Inc. and of
  Economics, Princeton University; Director of     each of the investment companies in The
  Prudential Insurance Co. of America, Amdahl        Vanguard Group.
  Corporation, Baker Fentress & Co., The
  Jeffrey Co., and Southern New England            KAREN E. WEST, Controller*
  Communications Company.                          Vice President of The Vanguard Group, Inc.;
                                                   Controller of each of the investment companies
                                                     in The Vanguard Group.
                                                   ---------------
                                                   *Officers of the Fund are "interested persons"
                                                   as defined in the Investment Company Act of
                                                   1940.
</TABLE>
 
                                        7
<PAGE>   58
 
                               THE VANGUARD GROUP
 
     Vanguard/Morgan Growth Fund, Inc. is a member of The Vanguard Group of
Investment Companies.
 
     Through their jointly-owned subsidiary, The Vanguard Group, Inc.
("Vanguard"), the Fund and the other Funds in the Group obtain at cost virtually
all of their corporate management, administrative and distribution services.
Vanguard also provides investment advisory services on an at-cost basis to
certain Vanguard Funds.
 
     Vanguard employs a supporting staff of management and administrative
personnel needed to provide the requisite services to the Funds and also
furnishes the Funds with necessary office space, furnishings and equipment. Each
Fund pays its share of Vanguard's net expenses which are allocated among the
Funds under methods approved by the Board of Directors (Trustees) of each Fund.
In addition, each Fund bears its own direct expenses such as legal, auditing and
custodian fees.
 
     The Fund's officers are also officers and employees of Vanguard. No officer
or employee owns, or is permitted to own, any securities of any external adviser
for the Funds.
 
     The Vanguard Group adheres to a Code of Ethics established pursuant to Rule
17j-1 under the Investment Company Act of 1940. The Code is designed to prevent
unlawful practices in connection with the purchase or sale of securities by
persons associated with Vanguard. Under Vanguard's Code of Ethics certain
officers and employees of Vanguard who are considered access persons are
permitted to engage in personal securities transactions. However, such
transactions are subject to procedures and guidelines substantially similar to
those recommended by the mutual fund industry and approved by the U.S.
Securities and Exchange Commission.
 
     The Vanguard Group was established and operates under a Funds' Service
Agreement which was approved by the shareholders of each of the Funds. The
amounts which each of the Funds have invested are adjusted from time to time in
order to maintain the proportionate relationship between each Fund's relative
net assets and its contribution to Vanguard's capital. At December 31, 1994, the
Fund had contributed capital of $166,000 to Vanguard, representing .8% of
Vanguard's capitalization. The Fund's Service Agreement provides as follows: (a)
each Vanguard Fund may invest up to .40% of its current assets in Vanguard, and
(b) there is no other limitation on the amount that each Vanguard Fund may
contribute to Vanguard's capitalization.
 
     MANAGEMENT  Corporate management and administrative services include: (1)
executive staff; (2) accounting and financial; (3) legal and regulatory; (4)
shareholder account maintenance; (5) monitoring and control of custodian
relationships; (6) shareholder reporting; and (7) review and evaluation of
advisory and other services provided to the Funds by third parties. During the
fiscal year ended December 31, 1994, the Fund's share of Vanguard's actual net
costs of operation relating to management and administrative services (including
transfer agency) totaled approximately $3,524,000.
 
     DISTRIBUTION  Vanguard provides all distribution and marketing activities
for the Funds in the Group. Vanguard Marketing Corporation, a wholly-owned
subsidiary of The Vanguard Group, Inc., acts as Sales Agent for the shares of
the Funds in connection with any sales made directly to investors in the states
of Florida, Missouri, New York, Ohio, Texas and such other states as it may be
required.
 
     The principal distribution expenses are for advertising, promotional
materials and marketing personnel. Distribution services may also include
organizing and offering to the public, from time to time, one or more new
investment companies which will become members of the Group. The directors and
officers of Vanguard determine the amount to be spent annually on distribution
activities, the manner and amount to be spent on each Fund, and whether to
organize new investment companies.
 
     One half of the distribution expenses of a marketing and promotional nature
is allocated among the Funds based upon relative net assets. The remaining one
half of those expenses is allocated among the Funds based upon each Fund's sales
for the preceding 24 months relative to the total sales of the Funds as a Group,
provided, however, that no Fund's aggregate quarterly rate of contribution for
distribution expenses of a marketing and promotional nature shall exceed 125% of
average distribution expense rate for the Group, and that no Fund shall incur
annual distribution expenses in excess of 20/100 of 1% of its average month-end
net assets. During the fiscal year ended December 31, 1994, the Fund paid
approximately $180,000 of the Group's distribution and marketing expenses.
 
                                        8
<PAGE>   59
 
     INVESTMENT ADVISORY SERVICES  Vanguard also provides the Fund, Vanguard
Money Market Reserves, Vanguard Municipal Bond Fund, several Portfolios of
Vanguard Fixed Income Securities Fund, Vanguard California Tax-Free Fund,
Vanguard Florida Insured Tax-Free Fund, Vanguard New Jersey Tax-Free Fund,
Vanguard New York Insured Tax-Free Fund, Vanguard Ohio Tax-Free Fund, Vanguard
Pennsylvania Tax-Free Fund, Vanguard Institutional Money Market Portfolio,
Vanguard Admiral Funds, Vanguard Institutional Index Fund, Vanguard Bond Index
Fund, Vanguard Balanced Index Fund, Vanguard Index Trust, Vanguard International
Equity Index Fund, Vanguard Tax-Managed Fund, several Portfolios of Vanguard
Variable Insurance Fund, a portion of Vanguard/Windsor II as well as several
indexed separate accounts with investment advisory services. These services are
provided on an at-cost basis from a money management staff employed directly by
Vanguard. The compensation and other expenses of this staff are paid by the
Funds utilizing these services.
 
     REMUNERATION OF DIRECTORS AND OFFICERS  The Fund pays each Director, who is
not also an officer, an annual fee plus travel and other expenses incurred in
attending Board meetings. The Fund's officers and employees are paid by Vanguard
which, in turn, is reimbursed by the Fund and each other Fund in the Group, for
its proportionate share of officers' and employees' salaries and retirement
benefits.
 
     During the fiscal year ended December 31, 1994, the Fund paid approximately
$7,000 in Directors' fees and expenses to its "non-interested" Directors. The
Fund's proportionate share of remuneration paid by Vanguard (and reimbursed by
the Fund) during the fiscal year to all officers of the Fund, as a group, was
approximately $43,457.
 
     Under its retirement plan, Vanguard contributes annually an amount equal to
10% of each officer's annual compensation plus 5.7% of that part of an eligible
officer's compensation during the year, if any, that exceeds the Social Security
Taxable Wage Base then in effect. Under its thrift plan, all employees are
permitted to make pre-tax basic contributions in an amount up to 4% of total
compensation which Vanguard matches on a 100% basis. Directors who are not
Officers are paid an annual fee based on the number of years of service on the
board, up to fifteen years of service, upon retirement. The fee is equal to
$1,000 for each year of service and each investment company member of The
Vanguard Group contributes a proportionate amount to this fee based on its
relative net assets. This fee is paid, subsequent to a Director's retirement,
for a period of ten years or until the death of a retired Director. The Fund's
proportionate share of retirement benefits paid by Vanguard on behalf of all
eligible officers of the Fund, as a group, during the fiscal year ended December
31, 1994 was approximately $4,800.
 
     The following table provides detailed information with respect to the
amounts paid or accrued for the Directors for the fiscal year ended December 31,
1994.
 
                          VANGUARD/MORGAN GROWTH FUND
                               COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                AGGREGATE       PENSION OR RETIREMENT        ESTIMATED          TOTAL COMPENSATION
                               COMPENSATION      BENEFITS ACCRUED AS      ANNUAL BENEFITS     FROM ALL VANGUARD FUNDS
    NAMES OF DIRECTORS          FROM FUND       PART OF FUND EXPENSES     UPON RETIREMENT      PAID TO DIRECTORS(2)
- ---------------------------    ------------     ---------------------     ---------------     -----------------------
<S>                                <C>                  <C>                   <C>                     <C>
John C. Bogle(1)                     --                    --                      --                      --
John J. Brennan(1)                   --                    --                      --                      --
Barbara Barnes Hauptfuhrer         $572                 $143                  $15,000                 $50,000
Robert E. Cawthorn                 $572                 $107                  $13,000                 $50,000
Bruce K. MacLaury                  $655                 $147                  $12,000                 $45,000
Burton G. Malkiel                  $572                 $ 70                  $15,000                 $50,000
Alfred M. Rankin, Jr.              $572                 $ 39                  $15,000                 $50,000
John C. Sawhill                    $572                 $ 61                  $15,000                 $50,000
James O. Welch, Jr.                $549                 $ 96                  $15,000                 $48,000
J. Lawrence Wilson                 $560                 $ 47                  $15,000                 $49,000
</TABLE>
 
(1)  As "Interested Directors," Messrs. Bogle and Brennan receive no
     compensation for their service as Directors.
(2)  The amounts reported in this column reflect the total compensation paid to
     each Director for their service as Director or Trustee of 33 Vanguard Funds
     (26 in the case of Mr. MacLaury).
 
                                        9
<PAGE>   60
 
                           INVESTMENT ADVISORY SERVICES
 
     The Fund currently employs three separate investment advisers each of whom
manages the investment and reinvestment of a portion of the Fund's assets. Prior
to April 24, 1990 Wellington Management Company served as the Fund's sole
investment adviser.
 
     WELLINGTON MANAGEMENT COMPANY  The Fund employs Wellington Management
Company ("WMC") under an investment advisory agreement dated as of April 24,
1990 to manage the investment and reinvestment of approximately 40% of the
assets of the Fund and to continuously review, supervise and administer the
Fund's investment program. WMC discharges its responsibilities subject to the
control of the officers and Directors of the Fund.
 
     The Fund pays WMC a Basic Fee at the end of each fiscal quarter, calculated
by applying a quarterly rate, based on the following annual percentage rates, to
the Fund's average month-end net assets for the quarter:
 
<TABLE>
<CAPTION>
                                        NET ASSETS                       RATE
                    ---------------------------------------------------  -----
                    <S>                                                  <C>
                    First $50 million..................................  0.325%
                    Next $100 billion..................................  0.225%
                    Over $150 billion..................................  0.150%
</TABLE>
 
     The Basic Fee may be increased or decreased by applying an
incentive/penalty fee based on the investment performance of the assets of the
Fund managed by WMC relative to the investment record of The Growth Fund Stock
Index (the "Index") which is described in detail in the Prospectus.
 
     The following table sets forth the incentive/penalty fee rates payable by
the Fund to WMC under the proposed investment advisory agreement:
 
<TABLE>
<CAPTION>
                               CUMULATIVE THREE YEAR                    INCENTIVE(+)/
                              PERFORMANCE DIFFERENTIAL                 PENALTY (-) FEE
                                   VS. THE INDEX                            RATE
               ------------------------------------------------------  ---------------
               <S>                                                     <C>
               +12% or more above....................................       +.075%
               +6% but less than +12%................................      +.0375%
               Between +6% and -6%...................................        --0--
               -6% but less than -12%................................      -.0375%
               -12% or more below....................................       -.075%
</TABLE>
 
     The investment performance or the WMC Portfolio, for any period, expressed
as a percentage of the "WMC Portfolio unit value" at the beginning of such
period, will be the sum of: (i) the change in the WMC Portfolio unit value
during such period; (ii) the unit value of the Fund's cash distributions from
the WMC Portfolio net investment income and realized net capital gains (whether
long-term or short-term) having an ex-dividend date occurring within such
period; and (iii) the unit value of capital gains taxes paid or accrued during
such period by the Fund for undistributed realized long-term capital gains
realized from the WMC Portfolio.
 
     The "WMC Portfolio unit value" will be determined by dividing the total net
assets of the WMC Portfolio by a given number of units. On the initial date of
the agreement, the number of units in the WMC Portfolio will equal the total
shares outstanding of the Fund. After such initial date, as assets are added to
or are withdrawn from the WMC Portfolio, the number of units of the WMC
Portfolio will be adjusted based on the unit value of the WMC Portfolio on the
day such changes are executed.
 
     The investment record of the Index will be calculated quarterly by (i)
multiplying the total return for the quarter (change in market price plus
dividends) of each stock included in the Index by its weighting in the Index at
the beginning of the quarter, and (ii) adding the values discussed in (i). For
any period, therefore, the investment record of the Index will be the compounded
quarterly returns of the Index.
 
     For the purposes of determining the incentive/penalty fee, the net assets
of the WMC Portfolio will be averaged over the same period as the investment
performance of the WMC Portfolio and the investment record of the S&P 500 or the
Index are computed.
 
                                       10
<PAGE>   61
 
     In April 1972, the Securities and Exchange Commission ("SEC") issued
Release No. 7113 under the Investment Company Act of 1940 to call attention of
directors and investment advisers to certain factors which must be considered in
connection with investment company incentive fee arrangements. One of these
factors is to "avoid basing significant fee adjustments upon random or
insignificant differences" between the investment performance of a fund and that
of the particular index with which it is being compared. The Release provides
that "preliminary studies (of the SEC staff) indicate that as a 'rule of thumb'
the performance difference should be at least 10 percentage points" annually
before the maximum performance adjustment may be made. However, the Release also
states that "because of the preliminary nature of these studies, the Commission
is not recommending, at this time, that any particular performance difference
exist before the maximum fee adjustment may be made." The Release concludes that
the directors of a fund "should satisfy themselves that the maximum performance
adjustment will be made only for performance differences that can reasonably be
considered significant." The Board of Directors of the Fund has fully considered
the SEC Release and believes that the performance adjustments as included in the
proposed agreement are entirely appropriate although not within the 10
percentage points per year range suggested in the Release. Under the Fund's
investment advisory agreement, the maximum performance adjustment is made at a
difference of P12 percentage points from the performance of the index over a
thirty-six month period, which would effectively be the equivalent of
approximately 4 percentage points difference per year. The Fund's investment
advisory agreement provides for no performance adjustment at a difference of
less than 6 percentage points from the performance of the index over a
thirty-six month period, which would be the equivalent of approximately 2
percentage points per year.
 
   
     DURATION AND TERMINATION.  The new agreement with WMC became effective
April 24, 1990. Since April 23, 1992, the agreement has been renewable for
successive one-year periods, only if each renewal is specifically approved by a
vote of the Fund's Board of Directors, including the affirmative votes of a
majority of the Directors who are not parties to the contract or "interested
persons" (as defined in the Investment Company Act of 1940) of any such party,
cast in person at a meeting called for the purpose of considering such approval.
In addition, the question of continuance of the agreement may be presented to
the shareholders of the Fund; in such event, continuance shall be effected only
if approved by the affirmative vote of a majority of the outstanding voting
securities of the Fund. The agreement may be terminated without penalty at any
time (1) either by vote of the Board of Directors of the Fund or by vote of a
majority of the outstanding voting securities of the Fund on sixty (60) days'
written notice to WMC, or (2) by WMC upon ninety (90) days' written notice to
the Fund.
    
 
   
     PORTFOLIO TRANSACTIONS  The new investment advisory agreement, as does the
present agreement, authorizes WMC (with the approval of the Fund's Board of
Directors) to select the brokers or dealers that will execute the purchases and
sales of portfolio securities for the Fund and directs WMC to use its best
efforts to obtain the best available price and most favorable execution as to
all transactions for the Fund. WMC has undertaken to execute each investment
transaction at a price and commission which provides the most favorable total
cost or proceeds reasonably obtainable under the circumstances.
    
 
     In placing portfolio transactions, WMC will use its best judgment to choose
the broker most capable of providing the brokerage services necessary to obtain
best available price and most favorable execution. The full range and quality of
brokerage services available will be considered in making these determinations.
In those instances where it is reasonably determined that more than one broker
can offer the brokerage services needed to obtain the best available price and
most favorable execution, consideration may be given to those brokers which
supply investment research and statistical information and provide other
services in addition to execution services to the Fund and/or WMC. WMC considers
such information useful in the performance of its obligations under the
agreement but is unable to determine the amount by which such services may
reduce its expenses.
 
     The investment advisory agreement also incorporates the concepts of Section
28(e) of the Securities Exchange Act of 1934 by providing that, subject to the
approval of the Fund's Board of Directors, WMC may cause the Fund to pay a
broker-dealer which furnishes brokerage and research services a higher
commission than that which might be charged by another broker-dealer for
effecting the same transactions; provided that such commission is deemed
reasonable in terms of either that particular transaction or the overall
responsibilities of WMC to the Fund and the other Funds in the Group.
 
                                       11
<PAGE>   62
 
     Currently, it is the Fund's policy that WMC may at times pay higher
commissions in recognition of brokerage services felt necessary for the
achievement of better execution of certain securities transactions that
otherwise might not be available. WMC will only pay such higher commissions if
it believes this to be in the best interest of the Fund. Some brokers or dealers
who may receive such higher commissions in recognition of brokerage services
related to execution of securities transactions are also providers of research
information to WMC and/or the Fund. However, WMC has informed the Fund that it
will not pay higher commission rates specifically for the purpose of obtaining
research services.
 
     Since the Fund does not market its shares through intermediary brokers or
dealers, it is not the Fund's practice to allocate brokerage or principal
business on the basis of sales of its shares which may be effected through such
firms. However, the Fund may place portfolio orders with qualified
broker-dealers who recommend the Fund to other clients, or who act as agent in
the purchase of the Fund's shares for their clients, and may, when a number of
brokers and dealers can provide comparable best price and execution on a
particular transaction, consider the sale of Fund shares by a broker or dealer
in selecting among qualified broker-dealers.
 
     RELATED INFORMATION CONCERNING WELLINGTON MANAGEMENT COMPANY  ("WMC"), 75
State Street, Boston, MA 02109, is a professional investment counseling firm
which provides investment services to investment companies, other institutions
and individuals. Among the clients of WMC are more than 10 of the investment
companies of The Vanguard Group. As of December 31, 1994, WMC held discretionary
management authority with respect to more than $80 billion of assets. WMC and
its predecessor organizations have provided investment advisory services to
investment companies since 1933 and to investment counseling clients since 1960.
WMC is a Massachusetts general partnership of which the following persons are
managing partners: Messrs. Robert W. Doran, Duncan M. McFarland and John B.
Neff.
 
     During the last three fiscal years, the Fund paid the following advisory
fees to WMC:
 
<TABLE>
<CAPTION>
                                                         1992         1993        1994
                                                      ----------   ----------   ---------
          <S>                                         <C>          <C>          <C>
          Basic Fee.................................  $1,146,158   $1,198,679   $ 861,873
          Increase (Decrease) for Performance
            Adjustment..............................          --    (235,201)    (351,876)
                                                      ----------   ----------   ---------
               Total................................  $1,146,158   $  963,478   $ 509,997
                                                      ==========   ==========   =========
</TABLE>
 
     FRANKLIN PORTFOLIO ASSOCIATES TRUST  The Fund employs Franklin Portfolio
Associates Trust ("Franklin") under an investment advisory agreement dated as of
April 24, 1990 to manage the investment and reinvestment of approximately
one-third of the Fund's assets. Franklin discharges its responsibilities subject
to the control of the Officers and Directors of the Fund.
 
     The Fund pays Franklin Basic Fee by applying various percentage rates to
the average net assets of the Fund managed by Franklin. The fee schedule is as
follows:
 
<TABLE>
<CAPTION>
                                         NET ASSETS                       RATE
                    ----------------------------------------------------  ----
                    <S>                                                   <C>
                    First $100 million..................................  0.25%
                    Next $200 billion...................................  0.20%
                    Over $300 billion...................................  0.15%
</TABLE>
 
     The Basic Fee may be increased or decreased by applying an
incentive/penalty fee based on the investment performance of the Fund relative
to the investment record of the Index. Such incentive/penalty fee provides for
an increase or decrease in Franklin's basic fee in an amount equal to .10% per
annum (.025% per quarter) of the average month-end net assets of the portion of
the Fund managed by Franklin if the investment performance of that portion of
the Fund for the thirty-six months preceding the end of the quarter is six
percentage points or more above or below, respectively, the investment record of
the Index for the same period.
 
                                       12
<PAGE>   63
 
     The following table sets forth the incentive/penalty fee rates payable by
the Fund to Franklin under the investment advisory agreement:
 
<TABLE>
<CAPTION>
                             THREE YEAR PERFORMANCE                     ANNUAL INCENTIVE(+)/
                              DIFFERENTIAL VS. THE                        PENALTY (-) FEE
                                     INDEX                                      RATE
          ------------------------------------------------------------  --------------------
          <S>                                                           <C>
          +6% or more above...........................................          +.10%
          Between +6% and -6%.........................................          --0--
          -6% or more below...........................................          -.10%
</TABLE>
 
     The investment performance of the FPA Portfolio, the "FPA Portfolio unit
value" and the "investment record of the Index" will be calculated in the same
manner as set forth under the discussion of the WMC Agreement on page 10.
 
     For the purposes of determining the incentive/penalty fee, the net assets
of the FPA Portfolio will be averaged over the same period as the investment
performance of the FPA Portfolio and the investment record of the Index are
computed.
 
     The formula used to determine the performance adjustments, differs from the
view taken by the staff of the Securities and Exchange Commission. For a more
detailed discussion, see page 11. The Board of Directors of the Fund believes
that the performance adjustments, as included in the proposed agreement with
FPA, are appropriate although less than the 10 percentage points per year range
suggested in SEC Release No. 7113. Under the proposed agreement, the maximum
performance adjustment is made at a difference of approximately 2 percentage
points per year.
 
   
     The agreement with FPA is dated April 24, 1990 and continued until April
23, 1992. The agreement became renewable thereafter for successive one-year
periods, only if each renewal is specifically approved by a vote of the Fund's
Board of Directors, including the affirmative votes of a majority of the
Directors who are not parties to the contract or "interested persons" (as
defined in the Investment Company Act of 1940) of any such party, cast in person
at a meeting called for the purpose of considering such approval. In addition,
the question of continuance of the agreement may be presented to the
shareholders of the Fund; in such event, such continuance shall be effected only
if approved by the affirmative vote of a majority of the outstanding voting
securities of the Fund. The agreement may be terminated without penalty at any
time (1) either by vote of the Board of Directors of the Fund or by vote of a
majority of the outstanding voting securities of the Fund on 60 days' written
notice to FPA, or (2) by FPA upon 90 days' written notice to the Fund.
    
 
     During the last three fiscal years, the Fund paid FPA the following
advisory fees:
 
<TABLE>
<CAPTION>
                                                            1992       1993       1994
                                                          --------   --------   --------
          <S>                                             <C>        <C>        <C>
          Basic Fee.....................................  $ 96,012   $470,526   $708,874
          Increase (Decrease) for Performance
            Adjustment..................................        --         --         --
                                                          --------   --------   --------
               Total....................................  $ 96,012   $470,526   $708,874
                                                          =========  =========  =========
</TABLE>
 
     PORTFOLIO TRANSACTIONS  The provisions of the agreement with FPA relating
to portfolio transactions are identical to those under the agreement between the
Fund and WMC, as described under "Portfolio Transactions" on page 11.
 
   
     RELATED INFORMATION CONCERNING FRANKLIN PORTFOLIO ASSOCIATES ("FPA"), One
Post Office Square 3660, Boston, MA 02109, is a Massachusetts business trust,
which is a wholly owned subsidiary of Mellon Financial Service Corporation #1,
which is itself a wholly owned subsidiary of Mellon Bank Corporation. FPA is
managed by a Board of Trustees consisting of Messrs. John J. Nagorniak,
Chairman, Donald A. McMullen, Jr. and G. Christian Lantzsch.
    
 
     FPA is a professional investment counseling firm which specializes in the
management of common stock portfolios through the use of quantitative investment
models. As of December 31, 1994, FPA provided investment advisory services with
respect to approximately $6.64 billion of client assets, including approximately
$5.9 million for Vanguard Quantitative Portfolios, Inc., another mutual fund
member of The Vanguard
 
                                       13
<PAGE>   64
 
Group. During the year ended December 31, 1994, Vanguard Quantitative
Portfolios, Inc. paid FPA an annual advisory fee equal to .18 of 1% before an
increase of .01 of 1% based on performance.
 
HUSIC CAPITAL MANAGEMENT
 
     The Fund also employs Husic Capital Management ("Husic") under an
investment advisory agreement dated as of September 24, 1993 to manage the
investment and reinvestment of approximately 13% of the Fund's assets. Husic
discharges its responsibilities subject to the control of the Officers and
Directors of the Fund.
 
     For the services provided by Husic under the investment advisory agreement
the Fund will pay Husic a basic fee at the end of each fiscal quarter,
calculated by applying a quarterly rate, based on the following annual
percentage rates, to the average month-end net assets of the Husic Portfolio for
the quarter:
 
<TABLE>
<CAPTION>
                                         NET ASSETS                       RATE
                    ----------------------------------------------------  ----
                    <S>                                                   <C>
                    First $25 million...................................  0.40%
                    Next $125 million...................................  0.35%
                    Next $350 million...................................  0.25%
                    Next $500 million...................................  0.20%
                    Over $1 billion.....................................  0.15%
</TABLE>
 
   
     The basic fee paid to Husic, as provided above, may be increased or
decreased by applying an incentive/penalty fee based on the investment
performance of the Husic Portfolio relative to the investment record of the
Growth Fund Stock Index ("Growth Index"). Under the incentive/penalty fee
schedule, the basic fee payable to Husic may be increased or decreased by as
much as 75% of the basic fee depending on the investment performance of the
equity investment managed by Husic.
    
 
     The incentive/penalty fee rates will be determined by measuring the
investment performance of the Husic Portfolio relative to the investment record
of the Index in accordance with the following table:
 
<TABLE>
<CAPTION>
                                                                      ANNUAL RATES
                                                              AS A PERCENTAGE OF BASIC FEE
                                                         --------------------------------------
                    THREE YEAR PERFORMANCE                  FIRST                  ASSETS
                     DIFFERENTIAL VS. THE                $200 MILLION             IN EXCESS
                         GROWTH INDEX                     OF ASSETS            OF $200 MILLION
          -------------------------------------------    ------------         -----------------
          <S>                                            <C>                  <C>
          +12% points or more above..................       175.0%                  150.0%
          Between +6% points and +12% points above...       137.5%                  125.0%
          Between +6% points and -6% points..........       100.0%                  100.0%
          Between -6% points and -12% points.........        62.5%                   75.0%
          -12% points or more below..................        25.0%                   50.0%
</TABLE>
 
     Until the Quarter ending September 30, 1996, the incentive/penalty fee for
Husic will be calculated according to the following transition rules:
 
     (a) July 1, 1994 through September 30, 1996. Beginning with the quarter
ending September 30, 1994, and until the quarter ending September 30, 1996, the
incentive/penalty fee will be computed based upon a comparison of the investment
performance of the Husic Portfolio and that of the Growth Index over the number
of months that have elapsed between October 1, 1993 and the end of the quarter
for which the fee is computed. The number of
 
                                       14
<PAGE>   65
 
percentage points by which the investment performance of the Husic Portfolio
must exceed or fall below the investment record of the Growth Index for the
quarters ending during this period are as follows:
 
<TABLE>
<CAPTION>
                                                                 NUMBER OF
                                QUARTER ENDING               PERCENTAGE POINTS
                    ---------------------------------------  ------------------
                    <S>                                      <C>
                    September 30, 1994.....................          4
                    December 31, 1994......................          5
                    March 31, 1995.........................          6
                    June 30, 1995..........................          7
                    September 30, 1995.....................          8
                    December 31, 1995......................          9
                    March 31, 1996.........................          10
                    June 30, 1996..........................          11
                    September 30, 1996.....................          12
</TABLE>
 
     (b) On and After September 30, 1996. For the quarter ending September 30,
1996 and thereafter, the period used to calculate the incentive/penalty fee
shall be the 36 months preceding the end of the quarter for which the fee is
being computed and the number of percentage points used shall be 12.
 
     The "investment performance of the Husic Portfolio," the "Husic Portfolio
unit value" and the "investment record of the Index" will be calculated in the
same manner as set forth under the discussion of the WMC Agreement on page 10.
 
     For the purposes of determining the incentive/penalty fee, the net assets
of the Husic Portfolio will be averaged over the same period as the investment
performance of the Husic Portfolio and the investment record of the Growth Index
are computed.
 
     The formula used to determine the performance adjustments differs from the
view taken by the staff of the Securities and Exchange Commission. For a more
detailed discussion, see page 11. The Board of Directors of the Fund believes
that the performance adjustments, as included in the proposed agreement with
Husic are appropriate although not within the 10 percentage point per year range
suggested in SEC Release No. 7113. Under the proposed agreement, the maximum
performance adjustment is made at a difference of approximately 4 percentage
points per year.
 
     The new agreement with Husic dated September 24, 1993, will continue until
September 23, 1995. After this date the agreement is renewable for successive
one year periods in the same manner as the WMC agreement, as described under
"Duration and Termination" on page 11.
 
     During the period ended December 31, 1993 and for the fiscal year ended
December 31, 1994, Vanguard/Morgan Growth Fund paid Husic the following advisory
fees:
 
<TABLE>
<CAPTION>
                                                             1993       1994
                                                           --------   ---------
                    <S>                                    <C>        <C>
                    Basic Fee............................  $140,254   $ 495,619
                    Increase (Decrease) for Performance
                      Adjustment.........................        --    (181,969)
                                                           --------   ---------
                         Total...........................  $140,254   $ 313,650
                                                           =========  =========
</TABLE>
 
     PORTFOLIO TRANSACTIONS  The provisions of the agreement with Husic relating
to portfolio transactions are identical to those under the agreement between the
Fund and WMC, as described under "Portfolio Transactions."
 
   
     RELATED INFORMATION CONCERNING HUSIC  Husic Capital Management, 555
California Street, Suite 2900, San Francisco, California 94104, a California
limited partnership founded in 1986, provides investment advisory services to
investment companies, other institutions, and individuals. Frank J. Husic,
managing partner, is a controlling person of Husic. Husic's general partner is
Frank J. Husic & Co., a California corporation that is wholly owned by Frank J.
Husic. As of July 1, 1994, Husic provided investment advisory services to
clients having assets with an approximate value of $2.4 billion.
    
 
                                       15
<PAGE>   66
 
   
     With respect to each adviser, the Fund's Board of Directors may, without
the approval of shareholders, provide for:
    
 
     A. The employment of a new investment adviser pursuant to the terms of a
new advisory agreement, either as a replacement for an existing adviser or as an
additional adviser.
 
     B. A change in the terms of an advisory agreement.
 
     C. The continued employment of an existing adviser on the same advisory
contract terms where a contract has been assigned because of a change in control
of the adviser.
 
     Any such change will only be made upon not less than 30 days' prior written
notice to shareholders, which shall include the information concerning the
adviser that would have normally been included in a proxy statement.
 
   
                             PORTFOLIO TRANSACTIONS
    
 
     The investment advisory agreements authorize the Advisers (with the
approval of the Fund's Board of Directors) to select the brokers or dealers that
will execute the purchases and sales of portfolio securities for the Fund and
directs the Advisers to use their best efforts to obtain the best available
price and most favorable execution as to all transactions for the Fund. The
Advisers have undertaken to execute each investment transaction at a price and
commission which provides the most favorable total cost or proceeds reasonably
obtainable under the circumstances. During the fiscal years ended December 31,
1992, 1993 and 1994 the Fund paid $1,402,721, $1,577,672 and $1,931,684
respectively, in brokerage commissions.
 
     In placing portfolio transactions, the Advisers will use their best
judgment to choose the broker most capable of providing the brokerage services
necessary to obtain best available price and most favorable execution. The full
range and quality of brokerage services available will be considered in making
these determinations. In those instances where it is reasonably determined that
more than one broker can offer the brokerage services needed to obtain the best
available price and most favorable execution, consideration may be given to
those brokers which supply investment research and statistical information and
provide other services in addition to execution services to the Fund and/or the
Advisers. The Advisers consider such information useful in the performance of
their obligations under the agreement but are unable to determine the amount by
which such services may reduce its expenses.
 
     The investment advisory agreements also incorporate the concepts of Section
28(e) of the Securities Exchange Act of 1934 by providing that, subject to the
approval of the Fund's Board of Directors, the Advisers may cause the Fund to
pay a broker-dealer which furnishes brokerage and research services a higher
commission than that which might be charged by another broker-dealer for
effecting the same transaction; provided that such commission is deemed
reasonable in terms of either that particular transaction or the overall
responsibilities of the Advisers to the Fund and the other Funds in the Group.
 
     Currently, it is the Fund's policy that the Advisers may at times pay
higher commissions in recognition of brokerage services felt necessary for the
achievement of better execution of certain securities transactions that
otherwise might not be available. The Advisers will only pay such higher
commissions if they believe this to be in the best interest of the Fund. Some
brokers or dealers who may receive such higher commissions in recognition of
brokerage services related to execution of securities transactions are also
providers of research information to the Advisers and/or the Fund. However, the
Advisers have informed the Fund that they will not pay higher commission rates
specifically for the purpose of obtaining research services.
 
     Since the Fund does not market its shares through intermediary brokers or
dealers, it is not the Fund's practice to allocate brokerage or principal
business on the basis of sales of its shares which may be through such firms.
However, the Fund may place portfolio orders with qualified broker-dealers who
recommend the Fund to other clients, or who act as agent in the purchase of the
Fund's shares for their clients, and may, when a number of brokers and dealers
can provide comparable best price and execution on a particular transaction,
consider the sale of Fund shares by a broker or dealer in selecting among
qualified broker-dealers.
 
                                       16
<PAGE>   67
 
     Some securities considered for investment by the Fund may also be
appropriate for other Funds and/or clients served by the Advisers. If purchase
or sale of securities consistent with the investment policies of the Fund and
one or more of these other Funds or clients serviced by the Advisers are
considered at or about the same time, transactions in such securities will be
allocated among the several Funds and clients in a manner deemed equitable by
the Advisers.
 
                             YIELD AND TOTAL RETURN
 
     The yield of the Fund for the 30-day period ended December 31, 1994 was
+1.27%.
 
     The average annual total return of the Fund for the one-, five- and
ten-year periods ending December 31, 1994 was -1.67%, +8.05% and +12.54%,
respectively. Total return is computed by finding the average compounded rates
of return over the one-, five- and ten-year periods set forth above that would
equate an initial amount invested at the beginning of the periods to the ending
redeemable value of the investment.
 
                              PERFORMANCE MEASURES
 
     There are a number of different ways to measure the performance of a mutual
fund. One of the these methods is to calculate the current yield of a fund or
portfolio. This is done by dividing the total amount of dividends per share paid
by a fund during the past twelve months by a current offering price (including
the sales charge, if any). Under certain circumstances, such as when there has
been a fundamental change in investment or dividend policies, it might be
appropriate to annualize the dividends paid over the period such policies were
in effect, rather than using the dividends paid during the past twelve months.
An alternate method is to calculate a compound yield. This is derived by
computing the total compounded dividends paid by a fund during the past twelve
months on the assumption that all dividends were reinvested in additional shares
(and giving no effect to capital gains distributions or taxes) and dividing this
by a current offering price. Another method is to calculate the total return by
dividing the change in value of an investment in shares over a period of time
(generally ten years or more), assuming the reinvestment of all dividends and
capital gains distributions, by the original net asset value of the shares.
Regardless of the method used, past performance is not necessarily indicative of
future results, but are an indication of the return to shareholders only for the
limited historical period used.
 
     From time to time, advertisements, reports and promotional literature
regarding the Fund may compare its yield or total return (as calculated above)
to yields or returns reported by other investments and to various indices and
averages to assist an investor's calculation of how an investment in the Fund
might satisfy his investment objectives.
 
                              COMPARATIVE INDEXES
 
     Each of the investment company members of the Vanguard Group, including
Vanguard/Morgan Growth Fund, Inc., may, from time to time, use one or more of
the following unmanaged indices for comparative performance purposes.
 
GROWTH FUND STOCK INDEX -- The Index is composed of the various common stocks
that are held in the 50 largest growth stock mutual funds, using year-end net
assets, monitored by Morningstar, Inc. Under an agreement with the Fund,
Morningstar, Inc. develops the composition of the Index and its total return
each quarter. Neither Vanguard Group, Inc. WMC, Franklin, nor Husic are
affiliated with Morningstar in any way.
 
STANDARD AND POOR'S 500 COMPOSITE STOCK PRICE INDEX -- is a well diversified
list of 500 companies representing the U.S. Stock Market.
 
WILSHIRE 5000 EQUITY INDEXES -- consists of more than 6,000 common equity
securities, covering all stocks in the U.S. for which daily pricing is
available.
 
WILSHIRE 4500 EQUITY INDEX -- consists of all stocks in the Wilshire 5000 except
for the 500 stocks in the Standard and Poor's 500 Index.
 
                                       17
<PAGE>   68
 
MORGAN STANLEY CAPITAL INTERNATIONAL EAFE INDEX -- is an arithmetic, market
value-weighted average of the performance of over 900 securities listed on the
stock exchanges of countries in Europe, Australia and the Far East.
 
GOLDMAN SACHS 100 CONVERTIBLE BOND INDEX -- currently includes 67 bonds and 33
preferreds. The original list of names was generated by screening for
convertible issues of 100 million or greater in market capitalization. The index
is priced monthly.
 
SALOMON BROTHERS GNMA INDEX -- includes pools of mortgages originated by private
lenders and guaranteed by the mortgage pools of the Government National Mortgage
Association.
 
SALOMON BROTHERS HIGH-GRADE CORPORATE BOND INDEX -- consists of publicly issued,
non-convertible corporate bonds rated AA or AAA. It is a value-weighted, total
return index, including approximately 800 issues with maturities of 12 years or
greater.
 
LEHMAN LONG-TERM TREASURY BOND -- is composed of all bonds covered by the
Shearson Lehman Hutton Treasury Bond Index with maturities of 10 years or
greater.
 
MERRILL LYNCH CORPORATE & GOVERNMENT BOND -- consists of over 4,500 U.S.
Treasury, Agency and investment grade corporate bonds.
 
LEHMAN CORPORATE (BAA) BOND INDEX -- all publicly offered fixed-rate,
nonconvertible domestic corporate bonds rated Baa by Moody's, with a maturity
longer than 1 year and with more than $25 million outstanding. This index
includes over 1,000 issues.
 
BOND BUYER MUNICIPAL INDEX (20 YEAR) BOND -- is a yield index on current coupon
high-grade general obligation municipal bonds.
 
STANDARD & POOR'S PREFERRED INDEX -- is a yield index based upon the average
yield for four high-grade, non-callable preferred stock issues.
 
NASDAQ INDUSTRIAL INDEX -- is composed of more than 3,000 industrial issues. It
is a value-weighted index calculated on price change only and does not include
income.
 
COMPOSITE INDEX -- 70% Standard & Poor's 500 Index and 30% NASDAQ Industrial
Index.
 
COMPOSITE INDEX -- 35% Standard & Poor's 500 Index and 65% Salomon Brothers High
Grade Bond Index.
 
COMPOSITE INDEX -- 65% Standard & Poor's 500 Index and 35% Salomon Brothers High
Grade Bond Index.
 
RUSSELL 2000 SMALL COMPANY STOCK INDEX -- consists of the smallest 2,000 stocks
within the Russell 3000; a widely-used benchmark for small capitalization common
stocks.
 
LIPPER BALANCED FUND AVERAGE -- An industry benchmark of average balanced funds
with similar investment objectives and policies, as measured by Lipper
Analytical Services, Inc.
 
LIPPER NON-GOVERNMENT MONEY MARKET FUND AVERAGE -- An industry benchmark of
average non-government money market funds with similar investment objectives and
policies, as measured by Lipper Analytical Services, Inc.
 
LIPPER GOVERNMENT MONEY MARKET FUND AVERAGE -- An industry benchmark of average
government money market funds with similar investment objectives and policies,
as measured by Lipper Analytical Services, Inc.
 
LIPPER SMALL COMPANY GROWTH FUND AVERAGE -- the average performance of small
company growth funds as defined by Lipper Analytical Services, Inc. Lipper
defines a small company growth fund as a fund that by prospectus or portfolio
practice, limits its investments to companies on the basis of the size of the
company. From time to time, Vanguard may advertise using the average performance
and/or the average expense ratio of the small company growth funds. (This fund
category was first established in 1982. For years prior to 1982, the results of
the Lipper Small Company Growth category were estimated using the returns of the
Funds that constituted the Group at its inception.)
 
                                       18
<PAGE>   69
 
LEHMAN BROTHERS AGGREGATE BOND INDEX -- is a market weighted index that contains
individually priced U.S. Treasury, agency, corporate, and mortgage pass-through
securities corporate rated BBB- or better. The Index has a market value of over
$4 trillion.
 
LEHMAN BROTHERS MUTUAL FUND SHORT (1-5) GOVERNMENT/CORPORATE INDEX -- is a
market weighted index that contains individually priced U.S. Treasury, agency,
and corporate investment grade bonds rated BBB- or better with maturities
between 1 and 5 years. The index has a market value of over $1.3 trillion.
 
LEHMAN BROTHERS MUTUAL FUND INTERMEDIATE (5-10) GOVERNMENT/CORPORATE INDEX -- is
a market weighted index that contains individually priced U.S. Treasury, agency,
and corporate securities rated BBB- or better with maturities between 5 and 10
years. The index has a market value of over $600 billion.
 
LEHMAN BROTHERS MUTUAL FUND LONG (10+) GOVERNMENT/CORPORATE INDEX -- is a market
weighted index that contains individually priced U.S. Treasury, agency and
corporate securities rated BBB- or better with maturities greater than 10 years.
The index has a market value of over $900 billion.
 
RUSSELL 3000 INDEX -- consists of approximately the 3,000 largest stocks of U.S.
domiciled companies commonly traded on the New York and American Stock Exchanges
or the NASDAQ over-the-counter market, accounting for over 90% of the market
value of publicly traded Stocks in the U.S.
 
CAPITAL OPPORTUNITIES FUND STOCK INDEX -- The Index is composed of the various
common stocks that are held in the 50 largest aggressive growth stock mutual
funds, using year-end net assets, monitored by Morningstar, Inc.
 
     Advertisements which refer to the use of the Fund as a potential investment
for Individual Retirement Accounts may quote a total return based upon
compounding of dividends on which it is presumed no federal income tax applies.
 
     In assessing such comparisons of yields, an investor should keep in mind
that the composition of the investments in the reported averages is not
identical to the Fund's portfolio and that the items included in the
calculations of such averages may not be identical to the formula used by the
Fund to calculate its yield. In addition there can be no assurance that the Fund
will continue its performance as compared to such other averages.
 
                              FINANCIAL STATEMENTS
 
     The Fund's financial statements for the year ended December 31, 1994,
including the financial highlights for each of the five fiscal years in the
period ended December 31, 1994, appearing in the Vanguard/Morgan Growth Fund
1994 Annual Report to Shareholders, and the report thereon of Price Waterhouse
LLP, independent accountants, also appearing therein, are incorporated by
reference in this Statement of Additional Information. The Fund's 1994 Annual
Report to Shareholders is enclosed with this Statement of Additional
Information.
 
                     APPENDIX -- DESCRIPTION OF SECURITIES
 
I.  DESCRIPTION OF FOREIGN INVESTMENTS
 
     The Fund may invest in the securities (payable in U.S. dollars) of foreign
issues and in the securities of foreign branches of U.S. banks such as
negotiable certificates of deposit (Eurodollars). Because the Fund invests in
such securities, investment in the Fund involves investment risks that are
different in some respects from an investment in a fund which invests only in
debt obligations of U.S. issuers. Such risks may include future political and
economic developments, the possible imposition of withholding taxes on interest
income payable on the securities held, possible seizure or nationalization of
foreign deposits, the possible establishment of exchange controls or the
adoption of other restrictions by foreign governments which may adversely affect
the payment of principal and interest on securities held by the Fund, difficulty
in obtaining and enforcing court judgments abroad, the possibility of
restrictions on investments in other jurisdictions, reduced levels of government
regulation of securities markets in foreign countries, and difficulties in
effecting the repatriation of capital invested abroad. A Fund will not purchase
any such foreign security if, as a result, more than 20% of the value of the
Fund's total assets would be invested in such securities.
 
                                       19


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