DEAN WITTER MID CAP GROWTH FUND
497, 1997-08-01
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<PAGE>
                                                Filed Pursuant to Rule 497(e)
                                                Registration File No.: 33-53955



DEAN WITTER 
MID-CAP GROWTH FUND 
Prospectus -- July 28, 1997 
- ------------------------------------------------------------------------------ 

Dean Witter Mid-Cap Growth Fund (the "Fund") is an open-end, diversified 
management investment company whose investment objective is to seek long-term 
capital growth. The Fund seeks to meet its investment objective by investing 
primarily in equity securities of "mid-cap" companies. 

The Fund offers four classes of shares (each, a "Class"), each with a 
different combination of sales charges, ongoing fees and other features. The 
different distribution arrangements permit an investor to choose the method 
of purchasing shares that the investor believes is most beneficial given the 
amount of the purchase, the length of time the investor expects to hold the 
shares and other relevant circumstances. Shares of the Fund held prior to 
July 28, 1997 have been designated Class B shares. (See "Purchase of Fund 
Shares--Alternative Purchase Arrangements.") 

This Prospectus sets forth concisely the information you should know before 
investing in the Fund. It should be read and retained for future reference. 
Additional information about the Fund is contained in the Statement of 
Additional Information, dated July 28, 1997, which has been filed with the 
Securities and Exchange Commission, and which is available at no charge upon 
request of the Fund at the address or telephone numbers listed on this page. 
The Statement of Additional Information is incorporated herein by reference. 

TABLE OF CONTENTS 

Prospectus Summary ....................................................      2 

Summary of Fund Expenses ..............................................      4 

Financial Highlights ..................................................      5 

The Fund and its Management ...........................................      6 

Investment Objective and Policies .....................................      6 

Risk Considerations ...................................................     11 

Investment Restrictions ...............................................     12 

Purchase of Fund Shares ...............................................     12 

Shareholder Services ..................................................     20 

Redemptions and Repurchases ...........................................     22 

Dividends, Distributions and Taxes ....................................     23 

Performance Information ...............................................     24 

Additional Information ................................................     24 

SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR 
ENDORSED BY, ANY BANK, AND THE SHARES ARE NOT FEDERALLY INSURED BY THE 
FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY 
OTHER AGENCY. 

DEAN WITTER 
MID-CAP GROWTH FUND 
TWO WORLD TRADE CENTER 
NEW YORK, NEW YORK 10048 
(212) 392-2550 OR 
(800) 869-NEWS (TOLL-FREE) 

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 NOR ANY STATE SECURITIES COMMISSION PASSED UPON THE 
ACCURACY OR ADEQUACY OF 
  THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. 

                    Dean Witter Distributors Inc., Distributor 

                                1           
<PAGE>
PROSPECTUS SUMMARY 
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<TABLE>
<CAPTION>
<S>             <C>
THE FUND        The Fund is organized as a Trust, commonly known as a Massachusetts 
                business trust, and is an open-end, diversified management investment 
                company. The Fund invests primarily in equity securities of "mid-cap" 
                companies. 
- --------------- ----------------------------------------------------------------------- 
SHARES OFFERED  Shares of beneficial interest with $.01 par value (see page 24). The 
                Fund offers four Classes of shares, each with a different combination 
                of sales charges, ongoing fees and other features (see pages 12-19). 
- --------------- ----------------------------------------------------------------------- 
MINIMUM         The minimum initial investment for each Class is $1,000 ($100 if the 
PURCHASE        account is opened through EasyInvest (Service Mark) ). Class D shares 
                are only available to persons investing $5 million or more and to 
                certain other limited categories of investors. For the purpose of 
                meeting the minimum $5 million investment for Class D shares, and 
                subject to the $1,000 minimum initial investment for each Class of the 
                Fund, an investor's existing holdings of Class A shares and shares of 
                funds for which Dean Witter InterCapital Inc. serves as investment 
                manager ("Dean Witter Funds") that are sold with a front-end sales 
                charge, and concurrent investments in Class D shares of the Fund and 
                other Dean Witter Funds that are multiple class funds, will be 
                aggregated. The minimum subsequent investment is $100 (see page 12). 
- --------------- ----------------------------------------------------------------------- 
INVESTMENT      The investment objective of the Fund is long-term capital growth. 
OBJECTIVE 
- --------------- ----------------------------------------------------------------------- 
INVESTMENT      Dean Witter InterCapital Inc. ("InterCapital"), the Investment Manager 
MANAGER         of the Fund, and its wholly-owned subsidiary, Dean Witter Services 
                Company Inc., serve in various investment management, advisory, 
                management and administrative capacities to 100 investment companies 
                and other portfolios with net assets under management of approximately 
                $96.6 billion at June 30, 1997. 
- --------------- ----------------------------------------------------------------------- 
MANAGEMENT      The Investment Manager receives a monthly fee at the annual rate of 
FEE             0.75% of the portion of the Fund's average daily net assets not 
                exceeding $500 million and 0.725% of the portion of daily net assets 
                exceeding $500 million. The fee should not be compared with fees paid 
                by other investment companies without also considering applicable sales 
                loads and distribution fees, including those noted below (see page 6). 
- --------------- ----------------------------------------------------------------------- 
DISTRIBUTOR     Dean Witter Distributors Inc. (the "Distributor"). The Fund has adopted 
AND             a distribution plan pursuant to Rule 12b-1 under the Investment Company 
DISTRIBUTION    Act (the "12b-1 Plan") with respect to the distribution fees paid by 
FEE             the Class A, Class B and Class C shares of the Fund to the Distributor. 
                The entire 12b-1 fee payable by Class A and a portion of the 12b-1 fee 
                payable by each of Class B and Class C equal to 0.25% of the average 
                daily net assets of the Class are currently each characterized as a 
                service fee within the meaning of the National Association of 
                Securities Dealers, Inc. guidelines. The remaining portion of the 12b-1 
                fee, if any, is characterized as an asset-based sales charge (see pages 
                12 and 19). 
- --------------- ----------------------------------------------------------------------- 
ALTERNATIVE     Four classes of shares are offered: 
PURCHASE        o Class A shares are offered with a front-end sales charge, starting at 
ARRANGEMENTS    5.25% and reduced for larger purchases. Investments of $1 million or 
                more (and investments by certain other limited categories of investors) 
                are not subject to any sales charge at the time of purchase but a 
                contingent deferred sales charge ("CDSC") of 1.0% may be imposed on 
                redemptions within one year of purchase. The Fund is authorized to 
                reimburse the Distributor for specific expenses incurred in promoting 
                the distribution of the Fund's Class A shares and servicing shareholder 
                accounts pursuant to the Fund's 12b-1 Plan. Reimbursement may in no 
                event exceed an amount equal to payments at an annual rate of 0.25% of 
                average daily net assets of the Class (see pages 12, 15 and 19). 
                o Class B shares are offered without a front-end sales charge, but will 
                in most cases be subject to a CDSC (scaled down from 5.0% to 1.0%) if 
                redeemed within six years after purchase. The CDSC will be imposed on 
                any redemption of shares if after such redemption the aggregate current 
                value of a Class B account with the Fund falls below the aggregate 
                amount of the investor's purchase payments made during the six years 
                preceding the redemption. A different CDSC schedule applies to 
                investments by certain qualified plans. Class B shares are also subject 
                to a 12b-1 fee assessed at the annual rate of 1.0% of the lesser of: 
                (a) the average daily net sales of the Fund's Class B shares or (b) the 
                average daily net assets of Class B. All shares of the Fund held prior 
                to July 28, 1997 have been designated Class B shares. Shares held 
                before May 1, 1997 will convert to Class A shares in May, 2007. In all 
                other instances, Class B shares convert to Class A shares approximately 
                ten years after the date of the original purchase (see pages 12, 16 and 
                19). 
- --------------- ----------------------------------------------------------------------- 

                                2           
<PAGE>
- --------------- ----------------------------------------------------------------------- 
                o Class C shares are offered without a front-end sales charge, but will 
                in most cases be subject to a CDSC of 1.0% if redeemed within one year 
                after purchase. The Fund is authorized to reimburse the Distributor for 
                specific expenses incurred in promoting the distribution of the Fund's 
                Class C shares and servicing shareholder accounts pursuant to the 
                Fund's 12b-1 Plan. Reimbursement may in no event exceed an amount equal 
                to payments at an annual rate of 1.0% of average daily net assets of 
                the Class (see pages 12, 18 and 19). 
                o Class D shares are offered only to investors meeting an initial 
                investment minimum of $5 million and to certain other limited 
                categories of investors. Class D shares are offered without a front-end 
                sales charge or CDSC and are not subject to any 12b-1 fee (see pages 
                12, 18 and 19). 
- --------------- ----------------------------------------------------------------------- 
DIVIDENDS       Dividends from net investment income and distributions from net capital 
AND CAPITAL     gains, if any, are paid at least annually. The Fund may, however, 
GAINS           determine to retain all or part of any net long-term capital gains in 
DISTRIBUTIONS   any year for reinvestment. Dividends and capital gains distributions 
                paid on shares of a Class are automatically reinvested in additional 
                shares of the same Class at net asset value unless the shareholder 
                elects to receive cash. Shares acquired by dividend and distribution 
                reinvestment will not be subject to any sales charge or CDSC (see pages 
                20 and 23). 
- --------------- ----------------------------------------------------------------------- 
REDEMPTION      Shares are redeemable by the shareholder at net asset value less any 
                applicable CDSC on Class A, Class B or Class C shares. An account may 
                be involuntarily redeemed if the total value of the account is less 
                than $100 or, if the account was opened through EasyInvest (Service 
                Mark), if after twelve months the shareholder has invested less than 
                $1,000 in the account (see page 22). 
- --------------- ----------------------------------------------------------------------- 
RISK            The net asset value of the Fund's shares will fluctuate with changes in 
CONSIDERATIONS  the market value of portfolio securities. Investing in medium-sized 
                market capitalization companies may involve greater risk of volatility 
                in the Fund's net asset value than is customarily associated with 
                investing in larger, more established companies. In addition, it should 
                be recognized that the foreign securities and markets in which the Fund 
                may invest up to 35% of its total assets pose different and greater 
                risks than those customarily associated with domestic securities and 
                their markets (see pages 6-12). 
- --------------- ----------------------------------------------------------------------- 
</TABLE>

The above is qualified in its entirety by the detailed information appearing 
elsewhere in this Prospectus 
and in the Statement of Additional Information. 

                                3           
<PAGE>
SUMMARY OF FUND EXPENSES 
- ----------------------------------------------------------------------------- 

The following table illustrates all expenses and fees that a shareholder of 
the Fund will incur. The expenses and fees set forth in the table are based 
on the expenses and fees for the fiscal year ended May 31, 1997. 

<TABLE>
<CAPTION>
                                                                    CLASS A      CLASS B      CLASS C      CLASS D 
                                                                 ------------ ------------ ------------ ----------- 
<S>                                                              <C>          <C>          <C>          <C>
SHAREHOLDER TRANSACTION EXPENSES 
Maximum Sales Charge Imposed on Purchases (as a percentage of 
 offering price) ................................................     5.25%(1)     None         None        None 
Sales Charge Imposed on Dividend Reinvestments ..................     None         None         None        None 
Maximum Contingent Deferred Sales Charge (as a percentage of 
 original purchase price or redemption proceeds).................     None(2)      5.00%(3)     1.00%(4)    None 
Redemption Fees..................................................     None         None         None        None 
Exchange Fee.....................................................     None         None         None        None 
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET 
 ASSETS) 
Management Fees .................................................     0.75%        0.75%        0.75%       0.75% 
12b-1 Fees (5)(6)................................................     0.25%        1.00%        1.00%       None 
Other Expenses ..................................................     0.24%        0.24%        0.24%       0.24% 
Total Fund Operating Expenses (7)................................     1.24%        1.99%        1.99%       0.99% 
</TABLE>

- ------------ 
(1)    Reduced for purchases of $25,000 and over (see "Purchase of Fund 
       Shares--Initial Sales Charge Alternative--Class A Shares"). 
(2)    Investments that are not subject to any sales charge at the time of 
       purchase are subject to a CDSC of 1.00% that will be imposed on 
       redemptions made within one year after purchase, except for certain 
       specific circumstances (see "Purchase of Fund Shares--Initial Sales 
       Charge Alternative--Class A Shares"). 
(3)    The CDSC is scaled down to 1.00% during the sixth year, reaching zero 
       thereafter. 
(4)    Only applicable to redemptions made within one year after purchase (see 
       "Purchase of Fund Shares--Level Load Alternative--Class C Shares"). 
(5)    The 12b-1 fee is accrued daily and payable monthly. The entire 12b-1 
       fee payable by Class A and a portion of the 12b-1 fee payable by each 
       of Class B and Class C equal to 0.25% of the average daily net assets 
       of the Class are currently each characterized as a service fee within 
       the meaning of National Association of Securities Dealers, Inc. 
       ("NASD") guidelines and are payments made for personal service and/or 
       maintenance of shareholder accounts. The remainder of the 12b-1 fee, if 
       any, is an asset-based sales charge, and is a distribution fee paid to 
       the Distributor to compensate it for the services provided and the 
       expenses borne by the Distributor and others in the distribution of the 
       Fund's shares (see "Purchase of Fund Shares--Plan of Distribution"). 
(6)    Upon conversion of Class B shares to Class A shares, such shares will 
       be subject to the lower 12b-1 fee applicable to Class A shares. No 
       sales charge is imposed at the time of conversion of Class B shares to 
       Class A shares. Class C shares do not have a conversion feature and, 
       therefore, are subject to an ongoing 1.00% distribution fee (see 
       "Purchase of Fund Shares--Alternative Purchase Arrangements"). 
(7)    There were no outstanding shares of Class A, Class C or Class D prior 
       to the date of this Prospectus. Accordingly, "Total Fund Operating 
       Expenses," as shown above with respect to those Classes, are based upon 
       the sum of 12b-1 Fees, Management Fees and estimated "Other Expenses." 

<TABLE>
<CAPTION>
 EXAMPLES                                                                   1 YEAR   3 YEARS   5 YEARS   10 YEARS 
                                                                          -------- --------- --------- ---------- 
<S>                                                                       <C>      <C>       <C>       <C>
You would pay the following expenses on a $1,000 investment assuming (1) 
a 5% annual return and (2) redemption at the end of each time period: 
  Class A ................................................................   $64       $90      $117       $195 
  Class B ................................................................   $70       $92      $127       $232 
  Class C.................................................................   $30       $62      $107       $232 
  Class D ................................................................   $10       $32      $ 55       $121 

You would pay the following expenses on the same $1,000 investment 
assuming no redemption at the end of the period: 
  Class A ................................................................   $64       $90      $117       $195 
  Class B ................................................................   $20       $62      $107       $232 
  Class C ................................................................   $20       $62      $107       $232 
  Class D ................................................................   $10       $32      $ 55       $121 
</TABLE>

THE ABOVE EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR 
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES OF EACH CLASS MAY BE GREATER 
OR LESS THAN THOSE SHOWN. 

The purpose of this table is to assist the investor in understanding the 
various costs and expenses that an investor in the Fund will bear directly or 
indirectly. For a more complete description of these costs and expenses, see 
"The Fund and its Management," "Purchase of Fund Shares--Plan of 
Distribution" and "Redemption and Repurchases." 

Long-term shareholders of Class B and Class C may pay more in sales charges, 
including distribution fees, than the economic equivalent of the maximum 
front-end sales charges permitted by the NASD. 

                                4           
<PAGE>
FINANCIAL HIGHLIGHTS 
- ----------------------------------------------------------------------------- 

   The following ratios and per share data for a share of beneficial interest 
outstanding throughout each period have been audited by Price Waterhouse LLP, 
independent accountants. The financial highlights should be read in 
conjunction with the financial statements, notes thereto, and the unqualified 
report of independent accountants which are contained in the Statement of 
Additional Information. Further information about the performance of the Fund 
is contained in the Fund's Annual Report to Shareholders, which may be 
obtained without charge upon request to the Fund. All shares of the Fund held 
prior to July 28, 1997 have been designated Class B shares. 

<TABLE>
<CAPTION>
                                                                           FOR THE PERIOD 
                                            FOR THE YEAR   FOR THE YEAR  SEPTEMBER 29, 1994* 
                                               ENDED          ENDED            THROUGH 
                                            MAY 31, 1997   MAY 31, 1996     MAY 31, 1995 
- ----------------------------------------- -------------- -------------- ------------------- 
<S>                                       <C>            <C>            <C>
PER SHARE OPERATING PERFORMANCE: 
Net asset value, beginning of period .....     $15.11         $10.81           $10.00 
                                          -------------- -------------- ------------------- 
Net investment loss.......................      (0.13)         (0.10)           (0.01) 
Net realized and unrealized gain  ........       0.94           5.60             0.84 
                                          -------------- -------------- ------------------- 
Total from investment operations..........       0.81           5.50             0.83 
                                          -------------- -------------- ------------------- 
Less distributions from net realized 
 gain.....................................      (1.16)         (1.20)           (0.02) 
                                          -------------- -------------- ------------------- 
Net asset value, end of period............     $14.76         $15.11           $10.81 
                                          ============== ============== =================== 
TOTAL INVESTMENT RETURN+..................       6.01%         53.02%            8.26%(1) 
RATIOS TO AVERAGE NET ASSETS: 
Expenses..................................       1.99%          2.05%            2.21%(2) 
Net investment loss.......................      (1.06)%        (1.05)%          (0.16)%(2) 
SUPPLEMENTAL DATA: 
Net assets, end of period, in thousands  .    $418,752       $309,272          $115,126 
Portfolio turnover rate...................        209%           328%             199%(1) 
                                                                                   -- 
Average commission rate paid..............     $0.0592        $0.0582 
</TABLE>

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

*     Commencement of operations. 
+     Does not reflect the deduction of sales charge. Calculated based on the 
      net asset value as of the last business day of the period. 
(1)   Not annualized. 
(2)   Annualized. 

                                5           
<PAGE>
THE FUND AND ITS MANAGEMENT 
- ----------------------------------------------------------------------------- 

   Dean Witter Mid-Cap Growth Fund (the "Fund") is an open-end, diversified 
management investment company. The Fund is a trust of the type commonly known 
as a "Massachusetts business trust" and was organized under the laws of The 
Commonwealth of Massachusetts on May 25, 1994. 

   Dean Witter InterCapital Inc. ("InterCapital" or the "Investment 
Manager"), whose address is Two World Trade Center, New York, New York 10048, 
is the Fund's Investment Manager. The Investment Manager, which was 
incorporated in July, 1992, is a wholly-owned subsidiary of Morgan Stanley, 
Dean Witter, Discover & Co., a preeminent global financial services firm that 
maintains leading market positions in each of its three primary 
businesses--securities, asset management and credit services. 

   InterCapital and its wholly-owned subsidiary, Dean Witter Services Company 
Inc., serve in various investment management, advisory, management and 
administrative capacities to 100 investment companies, thirty of which are 
listed on the New York Stock Exchange, with combined assets of approximately 
$93.1 billion at June 30, 1997. The Investment Manager also manages 
portfolios of pension plans, other institutions and individuals which 
aggregated approximately $3.5 billion at such date. 

   The Fund has retained the Investment Manager to provide administrative 
services, manage its business affairs and manage the investment of the Fund's 
assets, including the placing of orders for the purchase and sale of 
portfolio securities. InterCapital has retained Dean Witter Services Company 
Inc. to perform the aforementioned administrative services for the Fund. 

   The Fund's Trustees review the various services provided by the Investment 
Manager to ensure that the Fund's general investment policies and programs 
are being properly carried out and that administrative services are being 
provided to the Fund in a satisfactory manner. 

   As full compensation for the services and facilities furnished to the Fund 
and for expenses of the Fund assumed by the Investment Manager, the Fund pays 
the Investment Manager monthly compensation calculated daily by applying the 
following annual rates to the Fund's net assets: 0.75% of the portion of 
daily net assets not exceeding $500 million; and 0.725% of the portion of 
daily net assets exceeding $500 million. This fee is higher than the fee paid 
by most other investment companies. For the fiscal year ended May 31, 1997, 
the Fund accrued total compensation to the Investment Manager amounting to 
0.75% of the Fund's average daily net assets and the Fund's total expenses 
amounted to 1.99% of the Fund's average daily net assets. 

INVESTMENT OBJECTIVE AND POLICIES 
- ----------------------------------------------------------------------------- 

   The investment objective of the Fund is long-term capital growth. The 
objective is a fundamental policy of the Fund and may not be changed without 
a vote of a majority of the outstanding voting securities of the Fund. There 
is no assurance that the objective will be achieved. The following policies 
may be changed by the Board of Trustees without shareholder approval. 

   The Fund seeks to achieve its investment objective by investing, under 
normal circumstances, at least 65% of its total assets in a diversified 
portfolio of domestic and foreign equity securities of "mid-cap" companies. A 
mid-cap company is a company whose market capitalization falls within the 
range of $250 million to $5 billion. The Fund may invest up to 35% of its 
total assets in (i) U.S. Government Securities and investment grade corporate 
debt securities; or (ii) equity securities of companies with market 
capitalizations which fall outside of the range of $250 million to $5 billion 
at the time of purchase as long as such investments are consistent with the 
Fund's investment objective. The Fund may invest up to 35% of its total 
assets in the equity securities of non-U.S. companies, including American or 
other Depository Receipts, rights, warrants, and the direct purchase of 
foreign securities. Equity securities in which the Fund may invest include 
common stocks and securities convertible into common stocks. The Fund 
utilizes an investment process that places primary emphasis on seeking to 
identify industries, rather than individual companies, as prospects for 
capital appreciation and whereby the Investment Manager seeks to invest 
assets of the Fund in industries it considers to be attractive at the time of 
purchase and to sell those it considers overvalued. The Investment Manager 
will invest principally in those mid-cap companies that in the opinion of the 
Investment Manager have above-average relative growth potential. Mid-cap 
companies typically have a better growth potential than their large-cap 
counterparts because they are still in the early and more dynamic period of 
their corporate existences. Often mid-size companies and the industries in 
which they are focused are still evolving as opposed to the more mature 
industries served by large-cap companies. Moreover, mid-cap companies are not 
considered "emerging" stocks, nor are they as volatile as small-cap firms. 
This is due to the fact that mid-cap companies have increased liquidity, 
attributable to their larger market capitalization as well as longer and more 
established track records, and a stronger market presence and dominance than 
small-cap firms. Consequently, because of the better growth inherent in these 
companies and their industries, mid-cap companies offer superior return 
potential to large-cap companies, yet owing to their relatively larger size 
and better recognition in the investment community, they have a reduced risk 
profile compared to smaller, emerging or micro-cap companies. 

                                6           
<PAGE>
   In selecting stocks within the mid-cap universe, the Investment Manager 
will use an industry approach that seeks to diversify the assets of the Fund 
in approximately 18 to 35 industries. The Fund will hold less than 5% of its 
net assets in any one security and will hold less than 10% of its net assets 
in any one industry. Companies will be selected based on at least three-year 
track records, and purchases will be primarily focused on companies that: (1) 
have the potential for above-average relative earnings growth; (2) are 
focused in industries that are rapidly expanding or have the potential to see 
increasing sales or earnings; (3) historically have had well-defined and 
recurring revenues; or (4) are attractive based on an assessment of private 
market or franchise values. 

   After selection of the Fund's target industries, specific company 
investments are selected. In this process, the Investment Manager seeks to 
identify companies whose prospects are deemed attractive on the basis of an 
evaluation of valuation screens and prospective company fundamentals. From 
the total of all companies included in the industry valuation process, the 
Investment Manager selects a limited number from each industry as 
representative of that industry. Such selections are made on the basis of 
various criteria, including size and quality of a company, the visibility of 
its earnings and various valuation parameters. Valuation screens may include 
dividend discount model values, price-to-book ratios, price-to-cash flow 
values, relative and absolute price-to-earnings ratios and ratios of 
price-earnings multiples to earnings growth. Price and earnings momentum 
ratings derived from external sources are also factored into the stock 
selection decision. Those companies which the Investment Manager believes to 
be attractive investments are finally selected for inclusion in the Fund. For 
a discussion of the risks of mid-cap stocks, see "Risk Considerations" below. 

ASSET ALLOCATION. Common stocks, particularly those sought for possible 
capital appreciation, have historically experienced a great amount of price 
fluctuation. The Investment Manager believes it is desirable to attempt to 
reduce the risks of extreme price fluctuations even if such an attempt 
results, as it likely will at times, in reducing the probabilities of 
obtaining greater capital appreciation. Accordingly, the Investment Manager's 
investment process incorporates elements which may reduce, although certainly 
not eliminate, the volatility of a portfolio. The Fund may hold a portion of 
its portfolio in investment grade fixed-income securities, including 
convertible securities, in an effort to moderate extremes of price 
fluctuation. The determination of the appropriate asset allocation as between 
equity and fixed-income investments will be made by the Investment Manager in 
its discretion, based upon its evaluation of economic and market conditions. 

   Money market instruments in which the Fund may invest include securities 
issued or guaranteed by the U.S. Government, its agencies and 
instrumentalities (Treasury bills, notes and bonds, including zero coupon 
securities); bank obligations; Euro-dollar certificates of deposit; 
obligations of savings institutions; fully insured certificates of deposit; 
and commercial paper rated within the four highest grades by Moody's or S&P 
or, if not rated, issued by a company having an outstanding debt issue rated 
at least AA by S&P or Aa by Moody's. Such securities may be used to invest 
uncommitted cash balances. 

   There may be periods during which, in the opinion of the Investment 
Manager, market conditions warrant reduction of some or all of the Fund's 
securities holdings. During such periods, the Fund may adopt a temporary 
"defensive" posture in which up to 100% of its total assets is invested in 
money market instruments or cash. 

PORTFOLIO CHARACTERISTICS 

FIXED-INCOME SECURITIES. Investments in fixed-income securities rated either 
BBB by S&P or Baa by Moody's (the lowest credit ratings designated 
"investment grade") have speculative characteristics and, therefore, changes 
in economic conditions or other circumstances are more likely to weaken their 
capacity to make principal and interest payments than would be the case with 
investments in securities with higher credit ratings. If a non-convertible 
fixed-income security held by the Fund is rated BBB or Baa and is 
subsequently downgraded by a rating agency, the Fund will retain such 
security in its portfolio until the Investment Manager determines that it is 
practicable to sell the security without undue market or tax consequences to 
the Fund. In the event that such downgraded securities constitute 5% or more 
of the Fund's net assets, the Investment Manager will sell such securities as 
soon as is practicable, in sufficient amounts to reduce the total to below 
5%. 

CONVERTIBLE SECURITIES. The Fund may acquire, through purchase or a 
distribution by the issuer of a security held in its portfolio, a 
fixed-income security which is convertible into common stock of the issuer. 
Convertible securities rank senior to common stocks in a corporation's 
capital structure and, therefore, entail less risk than the corporation's 
common stock. The value of a convertible security is a function of its 
"investment value" (its value as if it did not have a conversion privilege), 
and its "conversion value" (the security's worth if it were to be exchanged 
for the underlying security, at market value, pursuant to its conversion 
privilege). 

   To the extent that a convertible security's investment value is greater 
than its conversion value, its price will be primarily a reflection of such 
investment value and its price will be likely to increase when interest rates 
fall and decrease when interest rates rise, as with a fixed-income security 
(the credit standing of the issuer and other factors may also have an effect 
on the convertible security's value). If the conversion value exceeds the 
investment value, the price of the convertible security will rise above its 
investment value and, in addition, will sell at some premium over its 
conversion value. (This premium represents the price investors are willing to 
pay for the 

                                7           
<PAGE>
privilege of purchasing a fixed-income security with a possibility of capital 
appreciation due to the conversion privilege.) At such times the price of the 
convertible security will tend to fluctuate directly with the price of the 
underlying equity security. 

   Because of the special nature of the Fund's permitted investments in lower 
rated convertible securities, the Investment Manager must take account of 
certain special considerations in assessing the risks associated with such 
investments. The prices of lower rated securities have been found to be less 
sensitive to changes in prevailing interest rates than higher rated 
investments, but are likely to be more sensitive to adverse economic changes 
or individual corporate developments. During an economic downturn or 
substantial period of rising interest rates, highly leveraged issuers may 
experience financial stress which would adversely affect their ability to 
service their principal and interest payment obligations, to meet their 
projected business goals or to obtain additional financing. If the issuer of 
a lower rated convertible security owned by the Fund defaults, the Fund may 
incur additional expenses to seek recovery. In addition, periods of economic 
uncertainty and change can be expected to result in an increased volatility 
of market prices of lower rated securities and a corresponding volatility in 
the net asset value of a share of the Fund. 

WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS. From 
time to time, in the ordinary course of business, the Fund may purchase 
securities on a when-issued or delayed delivery basis or may purchase or sell 
securities on a forward commitment basis. When such transactions are 
negotiated, the price is fixed at the time of the commitment, but delivery 
and payment can take place a month or more after the date of the commitment. 
An increase in the percentage of the Fund's assets committed to the purchase 
of securities on a when-issued, delayed delivery or forward commitment basis 
may increase the volatility of the Fund's net asset value. 

WHEN, AS AND IF ISSUED SECURITIES. The Fund may purchase securities on a 
"when, as and if issued" basis under which the issuance of the security 
depends upon the occurrence of a subsequent event, such as approval of a 
merger, corporate reorganization, leveraged buyout or debt restructuring. If 
the anticipated event does not occur and the securities are not issued, the 
Fund will have lost an investment opportunity. An increase in the percentage 
of the Fund's assets committed to the purchase of securities on a "when, as 
and if issued" basis may increase the volatility of its net asset value. 

LENDING OF PORTFOLIO SECURITIES. Consistent with applicable regulatory 
requirements, the Fund may lend its portfolio securities to brokers, dealers 
and other financial institutions, provided that such loans are callable at 
any time by the Fund (subject to certain notice provisions described in the 
Statement of Additional Information), and are at all times secured by cash or 
money market instruments, which are maintained in a segregated account 
pursuant to applicable regulations and that are equal to at least the market 
value, determined daily, of the loaned securities. As with any extensions of 
credit, there are risks of delay in recovery and in some cases even loss of 
rights in the collateral should the borrower of the securities fail 
financially. However, loans of portfolio securities will only be made to 
firms deemed by the Investment Manager to be creditworthy and when the income 
which can be earned from such loans justifies the attendant risks. 

PRIVATE PLACEMENTS. The Fund may invest up to 5% of its total assets in 
securities which are subject to restrictions on resale because they have not 
been registered under the Securities Act of 1933, as amended (the "Securities 
Act"), or which are otherwise not readily marketable. (Securities eligible 
for resale pursuant to Rule 144A under the Securities Act, and determined to 
be liquid pursuant to the procedures discussed in the following paragraph, 
are not subject to the foregoing restriction.) These securities are generally 
referred to as private placements or restricted securities. Limitations on 
the resale of such securities may have an adverse effect on their 
marketability, and may prevent the Fund from disposing of them promptly at 
reasonable prices. The Fund may have to bear the expense of registering such 
securities for resale and the risk of substantial delays in effecting such 
registration. 

   The Securities and Exchange Commission has adopted Rule 144A under the 
Securities Act, which permits the Fund to sell restricted securities to 
qualified institutional buyers without limitation. The Adviser, pursuant to 
procedures adopted by the Trustees of the Fund, will make a determination as 
to the liquidity of each restricted security purchased by the Fund. If a 
restricted security is determined to be "liquid," such security will not be 
included within the category "illiquid securities," which under current 
policy may not exceed 15% of the Fund's net assets. However, investing in 
Rule 144A securities could have the effect of increasing the level of Fund 
illiquidity to the extent the Fund, at a particular point in time, may be 
unable to find qualified institutional buyers interested in purchasing such 
securities. 

OPTIONS. The Fund also may purchase and sell (write) call and put options on 
debt and equity securities which are listed on Exchanges or are written in 
over-the-counter transactions ("OTC Options"). Listed options, which are 
currently listed on several different Exchanges, are issued by the Options 
Clearing Corporation ("OCC"). Ownership of a listed call option gives the 
Fund the right to buy from the OCC the underlying security covered by the 
option at the stated exercise price (the price per unit of the underlying 
security) by filing an exercise notice prior to the expiration date of the 
option. The writer (seller) of the option would then have the obligation to 
sell to the OCC the underlying security at that exercise price prior to the 
expiration date of the option, regardless of its then current market price. 
Ownership of a listed put option 

                                8           
<PAGE>
would give the Fund the right to sell the underlying security to the OCC at 
the stated exercise price. The Fund will not write covered options on 
portfolio securities exceeding in the aggregate 25% of the value of its total 
assets. 

OTC OPTIONS. OTC options are purchased from or sold (written) to dealers or 
financial institutions which have entered into direct agreements with the 
Fund. With OTC options, such variables as expiration date, exercise price and 
premium will be agreed upon between the Fund and the transacting dealer, 
without the intermediation of a third party such as the OCC. The Fund will 
engage in OTC option transactions only with primary U.S. Government 
securities dealers recognized by the Federal Reserve Bank of New York. 

COVERED CALL WRITING. The Fund is permitted to write covered call options on 
portfolio securities in order to aid it in achieving its investment 
objective. As a writer of a call option, the Fund has the obligation, upon 
notice of exercise of the option, to deliver the security underlying the 
option (certain listed call options written by the Fund will be exercisable 
by the purchaser only on a specific date). See "Options and Futures 
Transactions--Covered Call Writing" in the Statement of Additional 
Information. 

COVERED PUT WRITING. As a writer of covered put options, the Fund incurs an 
obligation to buy the security underlying the option from the purchaser of 
the put at the option's exercise price at any time during the option period. 
The Fund will write put options for two purposes: (1) to receive the premiums 
paid by purchasers; and (2) when the Investment Manager wishes to purchase 
the security underlying the option at a price lower than its current market 
price, in which case it will write the covered put at an exercise price 
reflecting the lower purchase price sought. See "Options and Futures 
Transactions--Covered Put Writing" in the Statement of Additional 
Information. 

PURCHASING CALL AND PUT OPTIONS. The Fund may invest up to 5% of its total 
assets in the purchase of put and call options on securities and stock 
indexes. The Fund may purchase put options on securities which it holds (or 
has the right to acquire) in its portfolio only to protect itself against a 
decline in the value of the security. The Fund may also purchase put options 
to close out written put positions in a manner similar to call option closing 
purchase transactions. There are no other limits on the Fund's ability to 
purchase call and put options. 

STOCK INDEX OPTIONS. The Fund may purchase and write options on stock indexes 
only for hedging purposes. Options on stock indexes are similar to options on 
stock except that, rather than the right to take or make delivery of stock at 
a specified price, an option on a stock index gives the holder the right to 
receive, upon exercise of the option, an amount of cash if the closing level 
of the stock index upon which the option is based is greater than, in the 
case of a call, or less than, in the case of a put, the exercise price of the 
option. See "Stock Index Options" and "Risks of Options on Indexes" in the 
Statement of Additional Information. 

FUTURES CONTRACTS. The Fund may purchase and sell interest rate and stock 
index futures contracts ("futures contracts") that are traded on U.S. 
commodity exchanges on such underlying securities as U.S. Treasury bonds, 
notes, and bills and GNMA Certificates ("interest rate" futures) and such 
indexes as the S&P 500 Index and the New York Stock Exchange Composite Index 
("stock index" futures) and the Moody's Investment-Grade Corporate Bond Index 
("bond index" futures). As a futures contract purchaser, the Fund incurs an 
obligation to take delivery of a specified amount of the obligation 
underlying the contract at a specified time in the future for a specified 
price. As a seller of a futures contract, the Fund incurs an obligation to 
deliver the specified amount of the underlying obligation at a specified time 
in return for an agreed upon price. The Fund will purchase or sell interest 
rate futures contracts and bond index futures contracts for the purpose of 
hedging its fixed-income portfolio (or anticipated portfolio) securities 
against changes in prevailing interest rates. The Fund will purchase or sell 
stock index futures contracts for the purpose of hedging its equity portfolio 
(or anticipated portfolio) securities against changes in their prices. See 
"Options and Futures Transactions--Futures Contracts" in the Statement of 
Additional Information. 

   The Fund also may purchase and write call and put options on futures 
contracts and enter into closing transactions with respect to such options to 
terminate an existing position. 
<PAGE>
REPURCHASE AGREEMENTS. The Fund may enter into repurchase agreements, which 
may be viewed as a type of secured lending by the Fund, and which typically 
involve the acquisition by the Fund of debt securities from a selling 
financial institution such as a bank, savings and loan association or 
broker-dealer. The agreement provides that the Fund will sell back to the 
institution, and that the institution will repurchase, the underlying 
security at a specified price and at a fixed time in the future, usually not 
more than seven days from the date of purchase. While repurchase agreements 
involve certain risks not associated with direct investments in debt 
securities, including the risks of default or bankruptcy of the selling 
financial institution, the Fund follows procedures designed to minimize those 
risks. These procedures include effecting repurchase transactions only with 
large, well-capitalized and well-established financial institutions whose 
financial condition will be continually monitored by the Investment Manager 
subject to procedures established by the Board of Trustees of the Fund. In 
addition, as described above, the value of the collateral underlying the 
repurchase agreement will be at least equal to the repurchase price, 
including any accrued interest earned on the repurchase agreement. In the 
event of a default or bankruptcy by a selling financial institution, the Fund 
will seek to liquidate such collateral. However, the exercising of the Fund's 
right to liquidate such collateral could involve certain costs or delays and, 
to the extent that proceeds from any sale upon a default 

                                9           
<PAGE>
of the obligation to repurchase were less than the repurchase price, the Fund 
could suffer a loss. It is the current policy of the Fund not to invest in 
repurchase agreements that do not mature within seven days if any such 
investment, together with any other illiquid assets held by the Fund, amounts 
to more than 15% of its net assets. 

FOREIGN SECURITIES. The Fund may invest up to 35% of the value of its total 
assets, at the time of purchase, in equity securities, rights and warrants 
issued by foreign issuers. Such investments may also be in the form of 
American Depository Receipts (ADRs), European Depository Receipts (EDRs) or 
other similar securities of foreign issuers. These securities may not 
necessarily be denominated in the same currency as the securities into which 
they may be converted. ADRs are receipts typically issued by a United States 
bank or trust company evidencing ownership of the underlying securities. EDRs 
are European receipts evidencing a similar arrangement. Generally, ADRs, in 
registered form, are designed for use in the United States securities markets 
and EDRs, in bearer form, are designed for use in European securities 
markets. The Fund's investments in unlisted foreign securities are subject to 
the Fund's overall policy limiting its investment in illiquid securities to 
15% or less of its net assets. For a discussion of the risks of foreign 
securities, see "Risk Considerations" below. 

ZERO COUPON SECURITIES. A portion of the fixed-income securities purchased by 
the Fund may be zero coupon securities. Such securities are purchased at a 
discount from their face amount, giving the purchaser the right to receive 
their full value at maturity. The interest earned on such securities is, 
implicitly, automatically compounded and paid out at maturity. While such 
compounding at a constant rate eliminates the risk of receiving lower yields 
upon reinvestment of interest if prevailing interest rates decline, the owner 
of a zero coupon security will be unable to participate in higher yields upon 
reinvestment of interest received on interest-paying securities if prevailing 
interest rates rise. 

   A zero coupon security pays no interest to its holder during its life. 
Therefore, to the extent the Fund invests in zero coupon securities, it will 
not receive current cash available for distribution to shareholders. In 
addition, zero coupon securities are subject to substantially greater price 
fluctuations during periods of changing prevailing interest rates than are 
comparable securities which pay interest on a current basis. Current federal 
tax law requires that a holder (such as the Fund) of a zero coupon security 
accrue a portion of the discount at which the security was purchased as 
income each year even though the Fund receives no interest payments in cash 
on the security during the year. 

INVESTMENT IN REAL ESTATE INVESTMENT TRUSTS. The Fund may invest in real 
estate investment trusts, which pool investors' funds for investments 
primarily in commercial real estate properties. Investment in real estate 
investment trusts may be the most practical available means for the Fund to 
invest in the real estate industry (the Fund is prohibited from investing in 
real estate directly). As a shareholder in a real estate investment trust, 
the Fund would bear its ratable share of the real estate investment trust's 
expenses, including its advisory and administration fees. At the same time 
the Fund would continue to pay its own investment management fees and other 
expenses, as a result of which the Fund and its shareholders in effect will 
be absorbing duplicate levels of fees with respect to investments in real 
estate investment trusts. Real estate investment trusts are not diversified 
and are subject to the risk of financing projects. They are also subject to 
heavy cash flow dependency, defaults by borrowers or tenants, 
self-liquidation, and the possibility of failing to qualify for tax-free 
status under the Internal Revenue Code and failing to maintain exemption from 
the Investment Company Act of 1940, as amended. 

PORTFOLIO MANAGEMENT 

The Fund's portfolio is actively managed by its Investment Manager with a 
view to achieving the Fund's investment objective. In determining which 
securities to purchase for the Fund or hold in the Fund's portfolio, the 
Investment Manager will rely on information from various sources, including 
research, analysis and appraisals of brokers and dealers, including Dean 
Witter Reynolds Inc. ("DWR") and other broker-dealer affiliates of 
InterCapital, the views of others regarding economic developments and 
interest rate trends, and the Investment Manager's own analysis of factors it 
deems relevant. No particular emphasis is given to investments in securities 
for the purpose of earning current income. The Fund's portfolio is managed 
within InterCapital's Growth Group, which manages 31 funds and fund 
portfolios with approximately $13.5 billion in assets as of June 30, 1997. 
Kirk Balzer, Vice President of InterCapital, a member of InterCapital's 
Growth Group, has been a primary portfolio manager of the Fund since April 
1996 and has been the sole primary portfolio manager of the Fund since 
December 1996. Prior to joining InterCapital in April 1996, Mr. Balzer was a 
portfolio manager at Chancellor Capital Management (July 1994-March 1996) and 
GT Capital Management (June 1992-July 1994). 

   The Fund intends to buy and hold securities for capital appreciation. 
Although the Fund does not intend to engage in substantial short-term trading 
as a means of achieving its investment objective, it may sell portfolio 
securities without regard to the length of time they have been held, in 
accordance with the investment policies described earlier. Portfolio changes 
will be effected whenever the Fund's Investment Manager believes they will 
benefit the performance of the portfolio. As a result the Fund does expect to 
engage in a substantial number of portfolio transactions. It is anticipated 
that, under normal market conditions, the Fund's portfolio turnover rate will 
not exceed 350% in any one year. The Fund will incur brokerage costs 
commensurate with its portfolio turnover rate; thus a higher level (over 
100%) of portfolio 

                               10           
<PAGE>
transactions will increase the Fund's overall brokerage expenses. Short term 
gains and losses may result from such portfolio transactions. See "Dividends, 
Distributions and Taxes" for a discussion of the tax implications of the 
Fund's trading policy. A more extensive discussion of the Fund's portfolio 
brokerage policies is set forth in the Statement of Additional Information. 

   Pursuant to an order of the Securities and Exchange Commission the Fund 
may effect principal transactions in certain money market instruments with 
DWR. In addition, the Fund may incur brokerage commissions on transactions 
conducted through DWR and other brokers and dealers that are affiliates of 
InterCapital. 

RISK CONSIDERATIONS 
- ----------------------------------------------------------------------------- 

   The net asset value of the Fund's shares will fluctuate with changes in 
the market value of its portfolio securities. The market value of the Fund's 
portfolio securities will increase or decrease due to a variety of economic, 
market or political factors which cannot be predicted. The Fund is intended 
for long-term investors who can accept the risks involved in seeking 
long-term growth of capital through investment primarily in the securities of 
medium-sized growth companies. It should be recognized that investing in such 
companies involves greater risk than is customarily associated with investing 
in more established companies. 

MID-CAP STOCKS. Investing in medium-sized market capitalization companies may 
involve greater risk of volatility of the Fund's net asset value than is 
customarily associated with investing in larger, more established companies. 
Often mid-size companies and the industries in which they are focused are 
still evolving and while this may offer better growth potential than larger, 
established companies, it also may make them more sensitive to changing 
market conditions. Because prices of stocks, including mid-cap stocks, 
fluctuate from day to day, the value of an investment in the Fund will vary 
based upon the Fund's investment performance. 

FOREIGN SECURITIES. The Fund may invest up to 35% of its total assets in 
equity securities of non-U.S. companies, including American or other 
Depository Receipts, rights, warrants and the direct purchase of foreign 
securities. While investments in foreign securities are intended to reduce 
risk by providing further diversification, such investments involve risks 
relating to local foreign political or economic developments, potential 
nationalization, withholding taxes on dividend or interest payments, and 
limitations on the use or transfer of Fund assets and any effects of foreign 
social, economic or political instability. Foreign securities investments may 
be affected by changes in currency rates or exchange control regulations, 
changes in governmental administration or economic or monetary policy (in the 
United States and abroad) or changed circumstances in dealings between 
nations. Costs may be incurred in connection with conversions between various 
currencies held by the Fund. Foreign companies may have less public or less 
reliable information available about them and may be subject to less 
governmental regulation than U.S. companies. Securities of foreign companies 
may be less liquid and more volatile than securities of U.S. companies. 

   Securities of foreign issuers may be less liquid than comparable 
securities of U.S. issuers and, as such, their price changes may be more 
volatile. Furthermore, foreign exchanges and broker-dealers are generally 
subject to less government and exchange scrutiny and regulation than their 
American counterparts. Brokerage commissions, dealer concessions and other 
transaction costs may be higher on foreign markets than in the U.S. In 
addition, differences in clearance and settlement procedures on foreign 
markets may occasion delays in settlements of the Fund's trades effected in 
such markets. As such, the inability to dispose of portfolio securities due 
to settlement delays could result in losses to the Fund due to subsequent 
declines in value of such securities and the inability of the Fund to make 
intended security purchases due to settlement problems could result in a 
failure of the Fund to make potentially advantageous investments. To the 
extent the Fund purchases Eurodollar certificates of deposit issued by 
foreign branches of domestic United States banks, consideration will be given 
to their domestic marketability, the lower reserve requirements normally 
mandated for overseas banking operations, the possible impact of 
interruptions in the flow of international currency transactions and future 
international political and economic developments which might adversely 
affect the payment of principal or interest. 

OPTIONS AND FUTURES TRANSACTIONS. The Fund may close out its position as 
writer of an option, or as a buyer or seller of a futures contract only if a 
liquid secondary market exists for options or futures contracts of that 
series. There is no assurance that such a market will exist. Also, exchanges 
may limit the amount by which the price of many futures contracts may move on 
any day. If the price moves equal the daily limit on successive days, then it 
may prove impossible to liquidate a futures position until the daily limit 
moves have ceased. 

   The extent to which the Fund may enter into transactions involving options 
and futures contracts may be limited by the Internal Revenue Code's 
requirements for qualification as a regulated investment company and the 
Fund's intention to qualify as such. See "Dividends, Distributions and 
Taxes." 

   While the futures contracts and options transactions to be engaged in by 
the Fund for the purpose of hedging the Fund's portfolio securities are not 
speculative in nature, there are risks inherent in the use of such 
instruments. One such risk is that the Investment 

                               11           
<PAGE>
Manager could be incorrect in its expectations as to the direction or extent 
of various interest rate or price movements or the time span within which the 
movements take place. For example, if the Fund sold futures contracts for the 
sale of securities in anticipation of an increase in interest rates, and then 
interest rates went down, causing bond prices to rise, the Fund would incur a 
loss on the sale. Another risk which may arise in employing futures contracts 
to protect against the price volatility of portfolio securities is that the 
prices of securities and indexes subject to futures contracts (and thereby 
the futures contract prices) may correlate imperfectly with the behavior of 
the cash prices of the Fund's portfolio securities. See the Statement of 
Additional Information for a further discussion of risks. 

   New futures contracts, options and other financial products and various 
combinations thereof continue to be developed. The Fund may invest in any 
such futures, options or products as may be developed, to the extent 
consistent with its investment objective and applicable regulatory 
requirements. 

   For additional risk disclosure, please refer to the "Portfolio 
Characteristics" section of the Prospectus and to the "Investment Practices 
and Policies" section of the Statement of Additional Information. 

INVESTMENT RESTRICTIONS 
- ----------------------------------------------------------------------------- 

   The investment restrictions listed below are among the restrictions which 
have been adopted by the Fund as fundamental policies. Under the Investment 
Company Act of 1940, as amended (the "Act"), a fundamental policy may not be 
changed without the vote of a majority of the outstanding voting securities 
of the Fund, as defined in the Act. For purposes of the following 
limitations: (i) all percentage limitations apply immediately after a 
purchase or initial investment; and (ii) any subsequent change in any 
applicable percentage resulting from market fluctuations or other changes in 
total or net assets does not require elimination of any security from the 
portfolio. 

   The Fund may not: 

   1. Invest more than 5% of the value of its total assets in the securities 
of any one issuer (other than obligations issued, or guaranteed by, the 
United States Government, its agencies or instrumentalities). 

   2. Purchase more than 10% of all outstanding voting securities or any 
class of securities of any one issuer. 

   3. Invest 25% or more of the value of its total assets in securities of 
issuers in any one industry. This restriction does not apply to obligations 
issued or guaranteed by the United States Government or its agencies or 
instrumentalities. 

   4. Invest more than 5% of the value of its total assets in securities of 
issuers having a record, together with predecessors, of less than three years 
of continuous operation. This restriction shall not apply to any obligation 
of the United States Government, its agencies or instrumentalities. 

   See the Statement of Additional Information for additional investment 
restrictions. 

   Notwithstanding any other investment policy or restriction, the Fund may 
seek to achieve its investment objective by investing all or substantially 
all of its assets in another investment company having substantially the same 
investment objective and policies as the Fund. 

PURCHASE OF FUND SHARES 
- ----------------------------------------------------------------------------- 

GENERAL 

   The Fund offers each class of its shares for sale to the public on a 
continuous basis. Pursuant to a Distribution Agreement between the Fund and 
Dean Witter Distributors Inc. (the "Distributor"), an affiliate of the 
Investment Manager, shares of the Fund are distributed by the Distributor and 
offered by DWR and other dealers who have entered into selected dealer 
agreements with the Distributor ("Selected Broker-Dealers"). The principal 
executive office of the Distributor is located at Two World Trade Center, New 
York, New York 10048. 

   The Fund offers four classes of shares (each, a "Class"). Class A shares 
are sold to investors with an initial sales charge that declines to zero for 
larger purchases; however, Class A shares sold without an initial sales 
charge are subject to a contingent deferred sales charge ("CDSC") of 1.0% if 
redeemed within one year of purchase, except for certain specific 
circumstances. Class B shares are sold without an initial sales charge but 
are subject to a CDSC (scaled down from 5.0% to 1.0%) payable upon most 
redemptions within six years after purchase. (Class B shares purchased by 
certain qualified employer-sponsored benefit plans are subject to a CDSC 
scaled down from 2.0% to 1.0% if redeemed within three years after purchase.) 
Class C shares are sold without an initial sales charge but are subject to a 
CDSC of 1.0% on most redemptions made within one year after purchase. Class D 
shares are sold without an initial sales charge or CDSC and are available 
only to investors meeting an initial investment minimum of $5 million, and to 
certain other limited categories of investors. At the discretion of the Board 
of Trustees of the Fund, Class A shares may be sold to categories of 
investors in addition to those set 

                               12           
<PAGE>
forth in this prospectus at net asset value without a front-end sales charge, 
and Class D shares may be sold to certain other categories of investors, in 
each case as may be described in the then current prospectus of the Fund. See 
"Alternative Purchase Arrangements--Selecting a Particular Class" for a 
discussion of factors to consider in selecting which Class of shares to 
purchase. 

   The minimum initial purchase is $1,000 for each Class of shares, although 
Class D shares are only available to persons investing $5 million or more and 
to certain other limited categories of investors. For the purpose of meeting 
the minimum $5 million initial investment for Class D shares, and subject to 
the $1,000 minimum initial investment for each Class of the Fund, an 
investor's existing holdings of Class A shares of the Fund and other Dean 
Witter Funds that are multiple class funds ("Dean Witter Multi-Class Funds") 
and shares of Dean Witter Funds sold with a front-end sales charge ("FSC 
Funds") and concurrent investments in Class D shares of the Fund and other 
Dean Witter Multi-Class Funds will be aggregated. Subsequent purchases of 
$100 or more may be made by sending a check, payable to Dean Witter Mid-Cap 
Growth Fund, directly to Dean Witter Trust Company (the "Transfer Agent") at 
P.O. Box 1040, Jersey City, NJ 07303 or by contacting an account executive of 
DWR or other Selected Broker-Dealer. When purchasing shares of the Fund, 
investors must specify whether the purchase is for Class A, Class B, Class C 
or Class D shares. If no Class is specified, the Transfer Agent will not 
process the transaction until the proper Class is identified. The minimum 
initial purchase in the case of investments through EasyInvest (Service 
Mark), an automatic purchase plan (see "Shareholder Services"), is $100, 
provided that the schedule of automatic investments will result in 
investments totalling at least $1,000 within the first twelve months. In the 
case of investments pursuant to Systematic Payroll Deduction Plans (including 
Individual Retirement Plans), the Fund, in its discretion, may accept 
investments without regard to any minimum amounts which would otherwise be 
required if the Fund has reason to believe that additional investments will 
increase the investment in all accounts under such Plans to at least $1,000. 
Certificates for shares purchased will not be issued unless a request is made 
by the shareholder in writing to the Transfer Agent. 

   Shares of the Fund are sold through the Distributor on a normal three 
business day settlement basis; that is, payment is due on the third business 
day (settlement date) after the order is placed with the Distributor. Since 
DWR and other Selected Broker-Dealers forward investors' funds on settlement 
date, they will benefit from the temporary use of the funds if payment is 
made prior thereto. As noted above, orders placed directly with the Transfer 
Agent must be accompanied by payment. Investors will be entitled to receive 
income dividends and capital gains distributions if their order is received 
by the close of business on the day prior to the record date for such 
dividends and distributions. Sales personnel of a Selected Broker-Dealer are 
compensated for selling shares of the Fund by the Distributor or any of its 
affiliates and/or the Selected Broker-Dealer. In addition, some sales 
personnel of the Selected Broker-Dealer will receive various types of 
non-cash compensation as special sales incentives, including trips, 
educational and/or business seminars and merchandise. The Fund and the 
Distributor reserve the right to reject any purchase orders. 

ALTERNATIVE PURCHASE ARRANGEMENTS 

The Fund offers several Classes of shares to investors designed to provide 
them with the flexibility of selecting an investment best suited to their 
needs. The general public is offered three Classes of shares: Class A shares, 
Class B shares and Class C shares, which differ principally in terms of sales 
charges and rate of expenses to which they are subject. A fourth Class of 
shares, Class D shares, is offered only to limited categories of investors 
(see "No Load Alternative--Class D Shares" below). 

   Each Class A, Class B, Class C or Class D share of the Fund represents an 
identical interest in the investment portfolio of the Fund except that Class 
A, Class B and Class C shares bear the expenses of the ongoing shareholder 
service fees, Class B and Class C shares bear the expenses of the ongoing 
distribution fees and Class A, Class B and Class C shares which are redeemed 
subject to a CDSC bear the expense of the additional incremental distribution 
costs resulting from the CDSC applicable to shares of those Classes. The 
ongoing distribution fees that are imposed on Class A, Class B and Class C 
shares will be imposed directly against those Classes and not against all 
assets of the Fund and, accordingly, such charges against one Class will not 
affect the net asset value of any other Class or have any impact on investors 
choosing another sales charge option. See "Plan of Distribution" and 
"Redemptions and Repurchases." 

   Set forth below is a summary of the differences between the Classes and 
the factors an investor should consider when selecting a particular Class. 
This summary is qualified in its entirety by detailed discussion of each 
Class that follows this summary. 

CLASS A SHARES. Class A shares are sold at net asset value plus an initial 
sales charge of up to 5.25%. The initial sales charge is reduced for certain 
purchases. Investments of $1 million or more (and investments by certain 
other limited categories of investors) are not subject to any sales charges 
at the time of purchase but are subject to a CDSC of 1.0% on redemptions made 
within one year after purchase, except for certain specific circumstances. 
Class A shares are also subject to a 12b-1 fee of up to 0.25% of the average 
daily net assets of the Class. See "Initial Sales Charge Alternative--Class A 
Shares." 

CLASS B SHARES. Class B shares are offered at net asset value with no initial 
sales charge but are subject to a 

                               13           
<PAGE>
CDSC (scaled down from 5.0% to 1.0%) if redeemed within six years of 
purchase. (Class B shares purchased by certain qualified employer-sponsored 
benefit plans are subject to a CDSC scaled down from 2.0% to 1.0% if redeemed 
within three years after purchase.) This CDSC may be waived for certain 
redemptions. Class B shares are also subject to an annual 12b-1 fee of 1.0% 
of the lesser of: (a) the average daily aggregate gross sales of the Fund's 
Class B shares since the inception of the Fund (not including reinvestments 
of dividends or capital gains distributions), less the average daily 
aggregate net asset value of the Fund's Class B shares redeemed since the 
Fund's inception upon which a CDSC has been imposed or waived, or (b) the 
average daily net assets of Class B. The Class B shares' distribution fee 
will cause that Class to have higher expenses and pay lower dividends than 
Class A or Class D shares. 

   After approximately ten (10) years, Class B shares will convert 
automatically to Class A shares of the Fund, based on the relative net asset 
values of the shares of the two Classes on the conversion date. In addition, 
a certain portion of Class B shares that have been acquired through the 
reinvestment of dividends and distributions will be converted at that time. 
See "Contingent Deferred Sales Charge Alternative--Class B Shares." 

CLASS C SHARES. Class C shares are sold at net asset value with no initial 
sales charge but are subject to a CDSC of 1.0% on redemptions made within one 
year after purchase. This CDSC may be waived for certain redemptions. They 
are subject to an annual 12b-1 fee of up to 1.0% of the average daily net 
assets of the Class C shares. The Class C shares' distribution fee may cause 
that Class to have higher expenses and pay lower dividends than Class A or 
Class D shares. See "Level Load Alternative--Class C Shares." 

CLASS D SHARES. Class D shares are available only to limited categories of 
investors (see "No Load Alternative--Class D Shares" below). Class D shares 
are sold at net asset value with no initial sales charge or CDSC. They are 
not subject to any 12b-1 fees. See "No Load Alternative--Class D Shares." 

SELECTING A PARTICULAR CLASS. In deciding which Class of Fund shares to 
purchase, investors should consider the following factors, as well as any 
other relevant facts and circumstances: 

   The decision as to which Class of shares is more beneficial to an investor 
depends on the amount and intended length of his or her investment. Investors 
who prefer an initial sales charge alternative may elect to purchase Class A 
shares. Investors qualifying for significantly reduced or, in the case of 
purchases of $1 million or more, no initial sales charges may find Class A 
shares particularly attractive because similar sales charge reductions are 
not available with respect to Class B or Class C shares. Moreover, Class A 
shares are subject to lower ongoing expenses than are Class B or Class C 
shares over the term of the investment. As an alternative, Class B and Class 
C shares are sold without any initial sales charge so the entire purchase 
price is immediately invested in the Fund. Any investment return on these 
additional investment amounts may partially or wholly offset the higher 
annual expenses of these Classes. Because the Fund's future return cannot be 
predicted, however, there can be no assurance that this would be the case. 

   Finally, investors should consider the effect of the CDSC period and any 
conversion rights of the Classes in the context of their own investment time 
frame. For example, although Class C shares are subject to a significantly 
lower CDSC upon redemptions, they do not, unlike Class B shares, convert into 
Class A shares after approximately ten years, and, therefore, are subject to 
an ongoing 12b-1 fee of 1.0% (rather than the 0.25% fee applicable to Class A 
shares) for an indefinite period of time. Thus, Class B shares may be more 
attractive than Class C shares to investors with longer term investment 
outlooks. Other investors, however, may elect to purchase Class C shares if, 
for example, they determine that they do not wish to be subject to a 
front-end sales charge and they are uncertain as to the length of time they 
intend to hold their shares. 

   For the purpose of meeting the $5 million minimum investment amount for 
Class D shares, holdings of Class A shares in all Dean Witter Multi-Class 
Funds, shares of FSC Funds and shares of Dean Witter Funds for which such 
shares have been exchanged will be included together with the current 
investment amount. 

   Sales personnel may receive different compensation for selling each Class 
of shares. Investors should understand that the purpose of a CDSC is the same 
as that of the initial sales charge in that the sales charges applicable to 
each Class provide for the financing of the distribution of shares of that 
Class. 

   Set forth below is a chart comparing the sales charge, 12b-1 fees and 
conversion options applicable to each Class of shares: 

                               14           
<PAGE>
<TABLE>
<CAPTION>
                                                         CONVERSION 
   CLASS         SALES CHARGE          12B-1 FEE           FEATURE 
- -------------------------------------------------------------------------------
<S>           <C>                         <C>           <C>
     A        Maximum 5.25%               0.25%         no 
              initial sales charge 
              reduced for 
              purchases of 
              $25,000 and over; 
              shares sold without 
              an initial sales 
              charge generally 
              subject to a 1.0% 
              CDSC during first 
              year.                       
- -------------------------------------------------------------------------------
     B        Maximum 5.0%                1.0%          B shares convert 
              CDSC during the first                     to A shares 
              year decreasing                           automatically 
              to 0 after six years                      after 
                                                        approximately 
                                                        ten years 
- -------------------------------------------------------------------------------
     C        1.0% CDSC during            1.0%           No 
              first year                  
- -------------------------------------------------------------------------------
     D         None                       None            No 
- -------------------------------------------------------------------------------
</TABLE>

   See "Purchase of Fund Shares" and "The Fund and its Management" for a 
complete description of the sales charges and service and distribution fees 
for each Class of shares and "Determination of Net Asset Value," "Dividends, 
Distributions and Taxes" and "Shareholder Services--Exchange Privilege" for 
other differences between the Classes of shares. 

INITIAL SALES CHARGE ALTERNATIVE-- 
CLASS A SHARES 

Class A shares are sold at net asset value plus an initial sales charge. In 
some cases, reduced sales charges may be available, as described below. 
Investments of $1 million or more (and investments by certain other limited 
categories of investors) are not subject to any sales charges at the time of 
purchase but are subject to a CDSC of 1.0% on redemptions made within one 
year after purchase (calculated from the last day of the month in which the 
shares were purchased), except for certain specific circumstances. The CDSC 
will be assessed on an amount equal to the lesser of the current market value 
or the cost of the shares being redeemed. The CDSC will not be imposed (i) in 
the circumstances set forth below in the section "Contingent Deferred Sales 
Charge Alternative--Class B Shares--CDSC Waivers," except that the references 
to six years in the first paragraph of that section shall mean one year in 
the case of Class A shares, and (ii) in the circumstances identified in the 
section "Additional Net Asset Value Purchase Options" below. Class A shares 
are also subject to an annual 12b-1 fee of up to 0.25% of the average daily 
net assets of the Class. 

   The offering price of Class A shares will be the net asset value per share 
next determined following receipt of an order (see "Determination of Net 
Asset Value" below), plus a sales charge (expressed as a percentage of the 
offering price) on a single transaction as shown in the following table: 

<TABLE>
<CAPTION>
                               SALES CHARGE 
                     ------------------------------- 
                       PERCENTAGE OF    APPROXIMATE 
  AMOUNT OF SINGLE    PUBLIC OFFERING  PERCENTAGE OF 
     TRANSACTION           PRICE      AMOUNT INVESTED 
- -------------------- --------------- --------------- 
<S>                  <C>             <C>
Less than $25,000  ..      5.25%           5.54% 
$25,000 but less 
 than $50,000 .......      4.75%           4.99% 
$50,000 but less 
 than $100,000 ......      4.00%           4.17% 
$100,000 but less 
 than $250,000 ......      3.00%           3.09% 
$250,000 but less 
 than $1 million  ...      2.00%           2.04% 
$1 million and over         0                 0 
</TABLE>

   Upon notice to all Selected Broker-Dealers, the Distributor may reallow up 
to the full applicable sales charge as shown in the above schedule during 
periods specified in such notice. During periods when 90% or more of the 
sales charge is reallowed, such Selected Broker-Dealers may be deemed to be 
underwriters as that term is defined in the Securities Act of 1933. 

   The above schedule of sales charges is applicable to purchases in a single 
transaction by, among others: (a) an individual; (b) an individual, his or 
her spouse and their children under the age of 21 purchasing shares for his, 
her or their own accounts; (c) a trustee or other fiduciary purchasing shares 
for a single trust estate or a single fiduciary account; (d) a pension, 
profit-sharing or other employee benefit plan qualified or non-qualified 
under Section 401 of the Internal Revenue Code; (e) tax-exempt organizations 
enumerated in Section 501(c)(3) or (13) of the Internal Revenue Code; (f) 
employee benefit plans qualified under Section 401 of the Internal Revenue 
Code of a single employer or of employers who are "affiliated persons" of 
each other within the meaning of Section 2(a)(3)(c) of the Act; and for 
investments in Individual Retirement Accounts of employees of a single 
employer through Systematic Payroll Deduction plans; or (g) any other 
organized group of persons, whether incorporated or not, provided the 
organization has been in existence for at least six months and has some 
purpose other than the purchase of redeemable securities of a registered 
investment company at a discount. 

COMBINED PURCHASE PRIVILEGE. Investors may have the benefit of reduced sales 
charges in accordance with the above schedule by combining purchases of Class 
A shares of the Fund in single transactions with the purchase of Class A 
shares of other Dean Witter Multi-Class Funds and shares of FSC Funds. The 
sales charge payable on the purchase of the Class A shares of the Fund, the 
Class A shares of the other Dean Witter Multi-Class Funds and the shares of 
the FSC Funds will be at their respective rates applicable to the total 
amount of the combined concurrent purchases of such shares. 

RIGHT OF ACCUMULATION. The above persons and entities may benefit from a 
reduction of the sales charges in 

                               15           
<PAGE>
accordance with the above schedule if the cumulative net asset value of Class 
A shares purchased in a single transaction, together with shares of the Fund 
and other Dean Witter Funds previously purchased at a price including a 
front-end sales charge (including shares of the Fund and other Dean Witter 
Funds acquired in exchange for those shares, and including in each case 
shares acquired through reinvestment of dividends and distributions), which 
are held at the time of such transaction, amounts to $25,000 or more. If such 
investor has a cumulative net asset value of shares of FSC Funds and Class A 
and Class D shares equal to at least $5 million, such investor is eligible to 
purchase Class D shares subject to the $1,000 minimum initial investment 
requirement of that Class of the Fund. See "No Load Alternative--Class D 
Shares" below. 

   The Distributor must be notified by DWR or a Selected Broker-Dealer or the 
shareholder at the time a purchase order is placed that the purchase 
qualifies for the reduced charge under the Right of Accumulation. Similar 
notification must be made in writing by the dealer or shareholder when such 
an order is placed by mail. The reduced sales charge will not be granted if: 
(a) such notification is not furnished at the time of the order; or (b) a 
review of the records of the Selected Broker-Dealer or the Transfer Agent 
fails to confirm the investor's represented holdings. 

LETTER OF INTENT. The foregoing schedule of reduced sales charges will also 
be available to investors who enter into a written Letter of Intent providing 
for the purchase, within a thirteen-month period, of Class A shares of the 
Fund from DWR or other Selected Broker-Dealers. The cost of Class A shares of 
the Fund or shares of other Dean Witter Funds which were previously purchased 
at a price including a front-end sales charge during the 90-day period prior 
to the date of receipt by the Distributor of the Letter of Intent, or of 
Class A shares of the Fund or shares of other Dean Witter Funds acquired in 
exchange for shares of such funds purchased during such period at a price 
including a front-end sales charge, which are still owned by the shareholder, 
may also be included in determining the applicable reduction. 

ADDITIONAL NET ASSET VALUE PURCHASE OPTIONS. In addition to investments of $1 
million or more, Class A shares also may be purchased at net asset value by 
the following: 

   (1) trusts for which Dean Witter Trust Company ("DWTC") or Dean Witter 
Trust FSB ("DWTFSB") (each of which is an affiliate of the Investment 
Manager) provides discretionary trustee services; 

   (2) persons participating in a fee-based program approved by the 
Distributor, pursuant to which such persons pay an asset based fee for 
services in the nature of investment advisory or administrative services 
(such investments are subject to all of the terms and conditions of such 
programs, which may include termination fees and restrictions on 
transferability of Fund shares); 

   (3) retirement plans qualified under Section 401(k) of the Internal 
Revenue Code ("401(k) plans") and other employer-sponsored plans qualified 
under Section 401(a) of the Internal Revenue Code with at least 200 eligible 
employees and for which DWTC or DWTFSB serves as Trustee or the 401(k) 
Support Services Group of DWR serves as recordkeeper; 

   (4) 401(k) plans and other employer-sponsored plans qualified under 
Section 401(a) of the Internal Revenue Code for which DWTC or DWTFSB serves 
as Trustee or the 401(k) Support Services Group of DWR serves as recordkeeper 
whose Class B shares have converted to Class A shares, regardless of the 
plan's asset size or number of eligible employees; 

   (5) investors who are clients of a Dean Witter account executive who 
joined Dean Witter from another investment firm within six months prior to 
the date of purchase of Fund shares by such investors, if the shares are 
being purchased with the proceeds from a redemption of shares of an open-end 
proprietary mutual fund of the account executive's previous firm which 
imposed either a front-end or deferred sales charge, provided such purchase 
was made within sixty days after the redemption and the proceeds of the 
redemption had been maintained in the interim in cash or a money market fund; 
and 

   (6) other categories of investors, at the discretion of the Board, as 
disclosed in the then current prospectus of the Fund. 

   No CDSC will be imposed on redemptions of shares purchased pursuant to 
paragraphs (1), (2) or (5), above. 

   For further information concerning purchases of the Fund's shares, contact 
DWR or another Selected Broker-Dealer or consult the Statement of Additional 
Information. 

CONTINGENT DEFERRED SALES CHARGE 
ALTERNATIVE--CLASS B SHARES 

Class B shares are sold at net asset value next determined without an initial 
sales charge so that the full amount of an investor's purchase payment may be 
immediately invested in the Fund. A CDSC, however, will be imposed on most 
Class B shares redeemed within six years after purchase. The CDSC will be 
imposed on any redemption of shares if after such redemption the aggregate 
current value of a Class B account with the Fund falls below the aggregate 
amount of the investor's purchase payments for Class B shares made during the 
six years (or, in the case of shares held by certain employer-sponsored 
benefit plans, three years) preceding the redemption. In addition, Class B 
shares are subject to an annual 12b-1 fee of 1.0% of the lesser of: (a) the 
average daily aggregate gross sales of the Fund's Class B shares since the 
inception of the Fund (not including reinvestments of dividends or capital 
gains distributions), less the average daily 

                               16           
<PAGE>
aggregate net asset value of the Fund's Class B shares redeemed since the 
Fund's inception upon which a CDSC has been imposed or waived, or (b) the 
average daily net assets of Class B. 

   Except as noted below, Class B shares of the Fund which are held for six 
years or more after purchase (calculated from the last day of the month in 
which the shares were purchased) will not be subject to any CDSC upon 
redemption. Shares redeemed earlier than six years after purchase may, 
however, be subject to a CDSC which will be a percentage of the dollar amount 
of shares redeemed and will be assessed on an amount equal to the lesser of 
the current market value or the cost of the shares being redeemed. The size 
of this percentage will depend upon how long the shares have been held, as 
set forth in the following table: 

<TABLE>
<CAPTION>
         YEAR SINCE 
          PURCHASE            CDSC AS A PERCENTAGE 
        PAYMENT MADE           OF AMOUNT REDEEMED 
- -------------------------- ------------------------ 
<S>                        <C>
First......................           5.0% 
Second.....................           4.0% 
Third......................           3.0% 
Fourth.....................           2.0% 
Fifth......................           2.0% 
Sixth......................           1.0% 
Seventh and thereafter ....           None 
</TABLE>

   In the case of Class B shares of the Fund held by 401 (k) plans or other 
employer-sponsored plans qualified under Section 401(a) of the Internal 
Revenue Code for which DWTC or DWTFSB serves as Trustee or the 401(k) Support 
Services Group of DWR serves as recordkeeper and whose accounts are opened on 
or after July 28, 1997, shares held for three years or more after purchase 
(calculated as described in the paragraph above) will not be subject to any 
CDSC upon redemption. However, shares redeemed earlier than three years after 
purchase may be subject to a CDSC (calculated as described in the paragraph 
above), the percentage of which will depend on how long the shares have been 
held, as set forth in the following table: 

<TABLE>
<CAPTION>
         YEAR SINCE 
          PURCHASE            CDSC AS A PERCENTAGE 
        PAYMENT MADE           OF AMOUNT REDEEMED 
- -------------------------- ------------------------ 
<S>                        <C>
First .....................           2.0% 
Second ....................           2.0% 
Third .....................           1.0% 
Fourth and thereafter  ....           None 
</TABLE>

CDSC WAIVERS.  A CDSC will not be imposed on: (i) any amount which represents 
an increase in value of shares purchased within the six years (or, in the 
case of shares held by certain employer-sponsored benefit plans, three years) 
preceding the redemption; (ii) the current net asset value of shares 
purchased more than six years (or, in the case of shares held by certain 
employer-sponsored benefit plans, three years) prior to the redemption; and 
(iii) the current net asset value of shares purchased through reinvestment of 
dividends or distributions and/or shares acquired in exchange for shares of 
FSC Funds or of other Dean Witter Funds acquired in exchange for such shares. 
Moreover, in determining whether a CDSC is applicable it will be assumed that 
amounts described in (i), (ii) and (iii) above (in that order) are redeemed 
first. 

   In addition, the CDSC, if otherwise applicable, will be waived in the case 
of: 

   (1) redemptions of shares held at the time a shareholder dies or becomes 
disabled, only if the shares are:   (A) registered either in the name of an 
individual shareholder (not a trust), or in the names of such shareholder and 
his or her spouse as joint tenants with right of survivorship; or   (B) held 
in a qualified corporate or self-employed retirement plan, Individual 
Retirement Account ("IRA") or Custodial Account under Section 403(b)(7) of 
the Internal Revenue Code ("403(b) Custodial Account"), provided in either 
case that the redemption is requested within one year of the death or initial 
determination of disability; 

   (2) redemptions in connection with the following retirement plan 
distributions:   (A) lump-sum or other distributions from a qualified 
corporate or self-employed retirement plan following retirement (or, in the 
case of a "key employee" of a "top heavy" plan, following attainment of age 
59 1/2);   (B) distributions from an IRA or 403(b) Custodial Account following 
attainment of age 59 1/2; or (C) a tax-free return of an excess contribution 
to an IRA; and 

   (3) all redemptions of shares held for the benefit of a participant in a 
401(k) plan or other employer-sponsored plan qualified under Section 401(a) 
of the Internal Revenue Code which offers investment companies managed by the 
Investment Manager or its subsidiary, Dean Witter Services Company Inc., as 
self-directed investment alternatives and for which DWTC or DWTFSB serves as 
Trustee or the 401(k) Support Services Group of DWR serves as recordkeeper 
("Eligible Plan"), provided that either: (A) the plan continues to be an 
Eligible Plan after the redemption; or (B) the redemption is in connection 
with the complete termination of the plan involving the distribution of all 
plan assets to participants. 

   With reference to (1) above, for the purpose of determining disability, 
the Distributor utilizes the definition of disability contained in Section 
72(m)(7) of the Internal Revenue Code, which relates to the inability to 
engage in gainful employment. With reference to (2) above, the term 
"distribution" does not encompass a direct transfer of IRA, 403(b) Custodial 
Account or retirement plan assets to a successor custodian or trustee. All 
waivers will be granted only following receipt by the Distributor of 
confirmation of the shareholder's entitlement. 

CONVERSION TO CLASS A SHARES.  All shares of the Fund held prior to July 28, 
1997 have been designated Class B shares. Shares held before May 1, 1997 will 
convert to 

                               17           
<PAGE>
Class A shares in May, 2007. In all other instances Class B shares will 
convert automatically to Class A shares, based on the relative net asset 
values of the shares of the two Classes on the conversion date, which will be 
approximately ten (10) years after the date of the original purchase. The ten 
year period is calculated from the last day of the month in which the shares 
were purchased or, in the case of Class B shares acquired through an exchange 
or a series of exchanges, from the last day of the month in which the 
original Class B shares were purchased, provided that shares originally 
purchased before May 1, 1997 will convert to Class A shares in May, 2007. The 
conversion of shares purchased on or after May 1, 1997 will take place in the 
month following the tenth anniversary of the purchase. There will also be 
converted at that time such proportion of Class B shares acquired through 
automatic reinvestment of dividends and distributions owned by the 
shareholder as the total number of his or her Class B shares converting at 
the time bears to the total number of outstanding Class B shares purchased 
and owned by the shareholder. In the case of Class B shares held by a 401(k) 
plan or other employer-sponsored plan qualified under Section 401(a) of the 
Internal Revenue Code and for which DWTC or DWTFSB serves as Trustee or the 
401(k) Support Services Group of DWR serves as recordkeeper, the plan is 
treated as a single investor and all Class B shares will convert to Class A 
shares on the conversion date of the first shares of a Dean Witter 
Multi-Class Fund purchased by that plan. In the case of Class B shares 
previously exchanged for shares of an "Exchange Fund" (see "Shareholder 
Services--Exchange Privilege"), the period of time the shares were held in 
the Exchange Fund (calculated from the last day of the month in which the 
Exchange Fund shares were acquired) is excluded from the holding period for 
conversion. If those shares are subsequently re-exchanged for Class B shares 
of a Dean Witter Multi-Class Fund, the holding period resumes on the last day 
of the month in which Class B shares are reacquired. 

   If a shareholder has received share certificates for Class B shares, such 
certificates must be delivered to the Transfer Agent at least one week prior 
to the date for conversion. Class B shares evidenced by share certificates 
that are not received by the Transfer Agent at least one week prior to any 
conversion date will be converted into Class A shares on the next scheduled 
conversion date after such certificates are received. 

   Effectiveness of the conversion feature is subject to the continuing 
availability of a ruling of the Internal Revenue Service or an opinion of 
counsel that (i) the conversion of shares does not constitute a taxable event 
under the Internal Revenue Code, (ii) Class A shares received on conversion 
will have a basis equal to the shareholder's basis in the converted Class B 
shares immediately prior to the conversion, and (iii) Class A shares received 
on conversion will have a holding period that includes the holding period of 
the converted Class B shares. The conversion feature may be suspended if the 
ruling or opinion is no longer available. In such event, Class B shares would 
continue to be subject to Class B 12b-1 fees. 

   Class B shares purchased before July 28, 1997 by trusts for which DWTC or 
DWTFSB provides discretionary trustee services will convert to Class A shares 
on or about August 29, 1997. The CDSC will not be applicable to such shares. 

LEVEL LOAD ALTERNATIVE--CLASS C SHARES 

Class C shares are sold at net asset value next determined without an initial 
sales charge but are subject to a CDSC of 1.0% on most redemptions made 
within one year after purchase (calculated from the last day of the month in 
which the shares were purchased). The CDSC will be assessed on an amount 
equal to the lesser of the current market value or the cost of the shares 
being redeemed. The CDSC will not be imposed in the circumstances set forth 
above in the section "Contingent Deferred Sales Charge Alternative--Class B 
Shares--CDSC Waivers," except that the references to six years in the first 
paragraph of that section shall mean one year in the case of Class C shares. 
Class C shares are subject to an annual 12b-1 fee of up to 1.0% of the 
average daily net assets of the Class. Unlike Class B shares, Class C shares 
have no conversion feature and, accordingly, an investor that purchases Class 
C shares will be subject to 12b-1 fees applicable to Class C shares for an 
indefinite period subject to annual approval by the Fund's Board of Trustees 
and regulatory limitations. 

NO LOAD ALTERNATIVE--CLASS D SHARES 

Class D shares are offered without any sales charge on purchase or redemption 
and without any 12b-1 fee. Class D shares are offered only to investors 
meeting an initial investment minimum of $5 million and the following 
categories of investors: (i) investors participating in the InterCapital 
mutual fund asset allocation program pursuant to which such persons pay an 
asset based fee; (ii) persons participating in a fee-based program approved 
by the Distributor, pursuant to which such persons pay an asset based fee for 
services in the nature of investment advisory or administrative services 
(subject to all of the terms and conditions of such programs, which may 
include termination fees and restrictions on transferability of Fund shares); 
(iii) 401(k) plans established by DWR and SPS Transaction Services, Inc. (an 
affiliate of DWR) for their employees; (iv) certain Unit Investment Trusts 
sponsored by DWR; (v) certain other open-end investment companies whose 
shares are distributed by the Distributor; and (vi) other categories of 
investors, at the discretion of the Board, as disclosed in the then current 
prospectus of the Fund. Investors who require a $5 million minimum initial 
investment to qualify to purchase Class D shares may satisfy that requirement 
by investing that amount in a single transaction in Class D shares of 

                               18           
<PAGE>
the Fund and other Dean Witter Multi-Class Funds, subject to the $1,000 
minimum initial investment required for that Class of the Fund. In addition, 
for the purpose of meeting the $5 million minimum investment amount, holdings 
of Class A shares in all Dean Witter Multi-Class Funds, shares of FSC Funds 
and shares of Dean Witter Funds for which such shares have been exchanged 
will be included together with the current investment amount. If a 
shareholder redeems Class A shares and purchases Class D shares, such 
redemption may be a taxable event. 

PLAN OF DISTRIBUTION 

The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under the 
Act with respect to the distribution of Class A, Class B and Class C shares 
of the Fund. In the case of Class A and Class C shares, the Plan provides 
that the Fund will reimburse the Distributor and others for the expenses of 
certain activities and services incurred by them specifically on behalf of 
those shares. Reimbursements for these expenses will be made in monthly 
payments by the Fund to the Distributor, which will in no event exceed 
amounts equal to payments at the annual rates of 0.25% and 1.0% of the 
average daily net assets of Class A and Class C, respectively. In the case of 
Class B shares, the Plan provides that the Fund will pay the Distributor a 
fee, which is accrued daily and paid monthly, at the annual rate of 1.0% of 
the lesser of: (a) the average daily aggregate gross sales of the Fund's 
Class B shares since the inception of the Fund (not including reinvestments 
of dividends or capital gains distributions), less the average daily 
aggregate net asset value of the Fund's Class B shares redeemed since the 
Fund's inception upon which a CDSC has been imposed or waived, or (b) the 
average daily net assets of Class B. The fee is treated by the Fund as an 
expense in the year it is accrued. In the case of Class A shares, the entire 
amount of the fee currently represents a service fee within the meaning of 
the NASD guidelines. In the case of Class B and Class C shares, a portion of 
the fee payable pursuant to the Plan, equal to 0.25% of the average daily net 
assets of each of these Classes, is currently characterized as a service fee. 
A service fee is a payment made for personal service and/or the maintenance 
of shareholder accounts. 

   Additional amounts paid under the Plan in the case of Class B and Class C 
shares are paid to the Distributor for services provided and the expenses 
borne by the Distributor and others in the distribution of the shares of 
those Classes, including the payment of commissions for sales of the shares 
of those Classes and incentive compensation to and expenses of DWR's account 
executives and others who engage in or support distribution of shares or who 
service shareholder accounts, including overhead and telephone expenses; 
printing and distribution of prospectuses and reports used in connection with 
the offering of the Fund's shares to other than current shareholders; and 
preparation, printing and distribution of sales literature and advertising 
materials. In addition, the Distributor may utilize fees paid pursuant to the 
Plan in the case of Class B shares to compensate DWR and other Selected 
Broker-Dealers for their opportunity costs in advancing such amounts, which 
compensation would be in the form of a carrying charge on any unreimbursed 
expenses. 

   For the fiscal year ended May 31, 1997, the Fund accrued payments under 
the Plan amounting to $3,526,078, which amount is equal to 1.0% of the Fund's 
average daily net assets for the fiscal year. The payments accrued under the 
Plan were calculated pursuant to clause (b) of the compensation formula under 
the Plan. All shares held prior to July 28, 1997 have been designated Class B 
shares. 

   In the case of Class B shares, at any given time, the expenses in 
distributing Class B shares of the Fund may be in excess of the total of (i) 
the payments made by the Fund pursuant to the Plan, and (ii) the proceeds of 
CDSCs paid by investors upon the redemption of Class B shares. For example, 
if $1 million in expenses in distributing Class B shares of the Fund had been 
incurred and $750,000 had been received as described in (i) and (ii) above, 
the excess expense would amount to $250,000. The Distributor has advised the 
Fund that such excess amounts, including the carrying charge described above, 
totalled $12,182,108 at May 31, 1997, which was equal to 2.91% of the net 
assets of the Fund on such date. Because there is no requirement under the 
Plan that the Distributor be reimbursed for all distribution expenses or any 
requirement that the Plan be continued from year to year, such excess amount 
does not constitute a liability of the Fund. Although there is no legal 
obligation for the Fund to pay expenses incurred in excess of payments made 
to the Distributor under the Plan, and the proceeds of CDSCs paid by 
investors upon redemption of shares, if for any reason the Plan is terminated 
the Trustees will consider at that time the manner in which to treat such 
expenses. Any cumulative expenses incurred, but not yet recovered through 
distribution fees or CDSCs, may or may not be recovered through future 
distribution fees or CDSCs. 

   In the case of Class A and Class C shares, expenses incurred pursuant to 
the Plan in any calendar year in excess of 0.25% or 1.0% of the average daily 
net assets of Class A or Class C, respectively, will not be reimbursed by the 
Fund through payments in any subsequent year, except that expenses 
representing a gross sales commission credited to account executives at the 
time of sale may be reimbursed in the subsequent calendar year. No interest 
or other financing charges will be incurred on any Class A or Class C 
distribution expenses incurred by the Distributor under the Plan or on any 
unreimbursed expenses due to the Distributor pursuant to the Plan. 

DETERMINATION OF NET ASSET VALUE 

The net asset value per share is determined once daily at 4:00 p.m., New York 
time (or, on days when the New York Stock Exchange closes prior to 4:00 p.m., 
at such earlier 

                               19           
<PAGE>
time), by taking the net assets of the Fund, dividing by the number of shares 
outstanding and adjusting to the nearest cent. The assets belonging to the 
Class A, Class B, Class C and Class D shares will be invested together in a 
single portfolio. The net asset value of each Class, however, will be 
determined separately by subtracting each Class's accrued expenses and 
liabilities. The net asset value per share will not be determined on Good 
Friday and on such other federal and non-federal holidays as are observed by 
the New York Stock Exchange. 

   In the calculation of the Fund's net asset value: (1) an equity portfolio 
security listed or traded on the New York or American Stock Exchange or other 
domestic or foreign stock exchange is valued at its latest sale price on that 
exchange prior to the time assets are valued; if there were no sales that 
day, the security is valued at the latest bid price (in cases where a 
security is traded on more than one exchange, the security is valued on the 
exchange designated as the primary market pursuant to procedures adopted by 
the Trustees); (2) an option is valued at the mean between the latest bid and 
asked prices; (3) a futures contract is valued at the latest sales price on 
the commodities exchange on which it trades unless the Board determines that 
such price does not reflect its market value, in which case it will be valued 
at its fair value as determined by the Board of Trustees; (4) all other 
portfolio securities for which over-the-counter market quotations are readily 
available are valued at the latest bid price; (5) when market quotations are 
not readily available, including circumstances under which it is determined 
by the Investment Manager that sale or bid prices are not reflective of a 
security's market value, portfolio securities are valued at their fair value 
as determined in good faith under procedures established by and under the 
general supervision of the Fund's Trustees (valuation of debt securities for 
which market quotations are not readily available may be based upon current 
market prices of securities which are comparable in coupon, rating and 
maturity or an appropriate matrix utilizing similar factors); (6) the value 
of short-term debt securities which mature at a date less than sixty days 
subsequent to valuation date will be determined on an amortized cost or 
amortized value basis; and (7) the value of other assets will be determined 
in good faith at fair value under procedures established by and under the 
general supervision of the Fund's Trustees. For valuation purposes, 
quotations of foreign portfolio securities, other assets and liabilities and 
forward contracts stated in foreign currency are translated into U.S. dollar 
equivalents at the prevailing market rates prior to the close of the New York 
Stock Exchange. Dividends receivable are accrued as of the ex-dividend date 
or as of the time that the relevant ex-dividend date and amounts become 
known. Interest income is accrued daily except when collection is uncertain. 

   Certain securities in the Fund's portfolio may be valued by an outside 
pricing service approved by the Fund's Trustees. The pricing service may 
utilize a matrix system incorporating security quality, maturity and coupon 
as the evaluation model parameters, and/or research evaluations by its staff, 
including review of broker-dealer market price quotations, in determining 
what it believes is the fair valuation of the portfolio securities valued by 
such pricing service. 

SHAREHOLDER SERVICES 
- ----------------------------------------------------------------------------- 

   AUTOMATIC INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS.  All income dividends 
and capital gains distributions are automatically paid in full and fractional 
shares of the applicable Class of the Fund (or, if specified by the 
shareholder, in shares of any other open-end Dean Witter Fund), unless the 
shareholder requests that they be paid in cash. Shares so acquired are 
acquired at net asset value and are not subject to the imposition of a 
front-end sales charge or a CDSC (see "Redemptions and Repurchases"). 

INVESTMENT OF DIVIDENDS OR DISTRIBUTIONS RECEIVED IN CASH. Any shareholder 
who receives a cash payment representing a dividend or capital gains 
distribution may invest such dividend or distribution in shares of the 
applicable Class at the net asset value next determined after receipt by the 
Transfer Agent, by returning the check or the proceeds to the Transfer Agent 
within thirty days after the payment date. Shares so acquired are acquired at 
net asset value and are not subject to the imposition of a front-end sales 
charge or a CDSC (see "Redemptions and Repurchases"). 

EASYINVEST (SERVICE MARK).  Shareholders may subscribe to EasyInvest, an 
automatic purchase plan which provides for any amount from $100 to $5,000 to 
be transferred automatically from a checking or savings account or following 
redemption of shares of a Dean Witter money market fund, on a semi-monthly, 
monthly or quarterly basis, to the Transfer Agent for investment in shares of 
the Fund (see "Purchase of Fund Shares" and "Redemptions and 
Repurchases--Involuntary Redemption"). 

SYSTEMATIC WITHDRAWAL PLAN.  A systematic withdrawal plan (the "Withdrawal 
Plan") is available for shareholders who own or purchase shares of the Fund 
having a minimum value of $10,000 based upon the then current net asset 
value. The Withdrawal Plan provides for monthly or quarterly (March, June, 
September and December) checks in any amount, not less than $25, or in any 
whole percentage of the account balance, on an annualized basis. Any 
applicable CDSC will be imposed on shares redeemed under the Withdrawal Plan 
(see "Purchase of Fund Shares"). Therefore, any shareholder participating in 
the Withdrawal Plan will have sufficient shares redeemed from his or her 
account so that the proceeds (net of any applicable CDSC) to the shareholder 
will be the designated monthly or quarterly amount. Withdrawal plan payments 
should not be considered as dividends, 

                               20           
<PAGE>
yields or income. If periodic withdrawal plan payments continuously exceed 
net investment income and net capital gains, the shareholder's original 
investment will be correspondingly reduced and ultimately exhausted. Each 
withdrawal constitutes a redemption of shares and any gain or loss realized 
must be recognized for federal income tax purposes. 

   Shareholders should contact their DWR or other Selected Broker-Dealer 
account executive or the Transfer Agent for further information about any of 
the above services. 

TAX-SHELTERED RETIREMENT PLANS. Retirement plans are available for use by 
corporations, the self-employed, Individual Retirement Accounts and Custodial 
Accounts under Section 403(b)(7) of the Internal Revenue Code. Adoption of 
such plans should be on advice of legal counsel or tax adviser. 

   For further information regarding plan administration, custodial fees and 
other details, investors should contact their DWR or other Selected 
Broker-Dealer account executive or the Transfer Agent. 

EXCHANGE PRIVILEGE 

Shares of each Class may be exchanged for shares of the same Class of any 
other Dean Witter Multi-Class Fund without the imposition of any exchange 
fee. Shares may also be exchanged for shares of the following funds: Dean 
Witter Short-Term U.S. Treasury Trust, Dean Witter Limited Term Municipal 
Trust, Dean Witter Short-Term Bond Fund, Dean Witter Intermediate Term U.S. 
Treasury Trust and five Dean Witter funds which are money market funds (the 
"Exchange Funds"). Class A shares may also be exchanged for shares of Dean 
Witter Multi-State Municipal Series Trust and Dean Witter Hawaii Municipal 
Trust, which are Dean Witter Funds sold with a front-end sales charge ("FSC 
Funds"). Class B shares may also be exchanged for shares of Dean Witter 
Global Short-Term Income Fund Inc., Dean Witter High Income Securities and 
Dean Witter National Municipal Trust, which are Dean Witter Funds offered 
with a CDSC ("CDSC Funds"). Exchanges may be made after the shares of the 
Fund acquired by purchase (not by exchange or dividend reinvestment) have 
been held for thirty days. There is no waiting period for exchanges of shares 
acquired by exchange or dividend reinvestment. 

   An exchange to another Dean Witter Multi-Class Fund, any FSC Fund, any 
CDSC Fund or any Exchange Fund that is not a money market fund is on the 
basis of the next calculated net asset value per share of each fund after the 
exchange order is received. When exchanging into a money market fund from the 
Fund, shares of the Fund are redeemed out of the Fund at their next 
calculated net asset value and the proceeds of the redemption are used to 
purchase shares of the money market fund at their net asset value determined 
the following day. Subsequent exchanges between any of the money market funds 
and any of the Dean Witter Multi-Class Funds, FSC Funds or CDSC Funds or any 
Exchange Fund that is not a money market fund can be effected on the same 
basis. 

   No CDSC is imposed at the time of any exchange of shares, although any 
applicable CDSC will be imposed upon ultimate redemption. During the period 
of time the shareholder remains in an Exchange Fund (calculated from the last 
day of the month in which the Exchange Fund shares were acquired) the holding 
period (for the purpose of determining the rate of the CDSC) is frozen. If 
those shares are subsequently re-exchanged for shares of a Dean Witter 
Multi-Class Fund or shares of a CDSC Fund, the holding period previously 
frozen when the first exchange was made resumes on the last day of the month 
in which shares of a Dean Witter Multi-Class Fund or shares of a CDSC Fund 
are reacquired. Thus, the CDSC is based upon the time (calculated as 
described above) the shareholder was invested in shares of a Dean Witter 
Multi-Class Fund or in shares of a CDSC Fund (see "Purchase of Fund Shares"). 
In the case of exchanges of Class A shares which are subject to a CDSC, the 
holding period also includes the time (calculated as described above) the 
shareholder was invested in shares of a FSC Fund. However, in the case of 
shares exchanged into an Exchange Fund on or after April 23, 1990, upon a 
redemption of shares which results in a CDSC being imposed, a credit (not to 
exceed the amount of the CDSC) will be given in an amount equal to the 
Exchange Fund 12b-1 distribution fees, if any, incurred on or after that date 
which are attributable to those shares. (Exchange Fund 12b-1 distribution 
fees are described in the prospectuses for those funds.) Class B shares of 
the Fund acquired in exchange for Class B shares of another Dean Witter 
Multi-Class Fund or shares of a CDSC Fund having a different CDSC schedule 
than that of this Fund will be subject to the higher CDSC schedule, even if 
such shares are subsequently re-exchanged for shares of the fund with the 
lower CDSC schedule. 

ADDITIONAL INFORMATION REGARDING EXCHANGES. Purchases and exchanges should be 
made for investment purposes only. A pattern of frequent exchanges may be 
deemed by the Investment Manager to be abusive and contrary to the best 
interests of the Fund's other shareholders and, at the Investment Manager's 
discretion, may be limited by the Fund's refusal to accept additional 
purchases and/or exchanges from the investor. Although the Fund does not have 
any specific definition of what constitutes a pattern of frequent exchanges, 
and will consider all relevant factors in determining whether a particular 
situation is abusive and contrary to the best interests of the Fund and its 
other shareholders, investors should be aware that the Fund and each of the 
other Dean Witter Funds may in their discretion limit or otherwise restrict 
the number of times this Exchange Privilege may be exercised by any investor. 
Any such restriction will be made by the Fund on a prospective basis only, 
upon notice to the shareholder not later than ten days following 

                               21           
<PAGE>
such shareholder's most recent exchange. Also, the Exchange Privilege may be 
terminated or revised at any time by the Fund and/or any of such Dean Witter 
Funds for which shares of the Fund have been exchanged, upon such notice as 
may be required by applicable regulatory agencies. Shareholders maintaining 
margin accounts with DWR or another Selected Broker-Dealer are referred to 
their account executive regarding restrictions on exchange of shares of the 
Fund pledged in the margin account. 

   The current prospectus for each fund describes its investment objective(s) 
and policies, and shareholders should obtain a copy and examine it carefully 
before investing. Exchanges are subject to the minimum investment requirement 
of each Class of shares and any other conditions imposed by each fund. In the 
case of any shareholder holding a share certificate or certificates, no 
exchanges may be made until all applicable share certificates have been 
received by the Transfer Agent and deposited in the shareholder's account. An 
exchange will be treated for federal income tax purposes the same as a 
repurchase or redemption of shares, on which the shareholder may realize a 
capital gain or loss. However, the ability to deduct capital losses on an 
exchange may be limited in situations where there is an exchange of shares 
within ninety days after the shares are purchased. The Exchange Privilege is 
only available in states where an exchange may legally be made. 

   If DWR or another Selected Broker-Dealer is the current dealer of record 
and its account numbers are part of the account information, shareholders may 
initiate an exchange of shares of the Fund for shares of any of the Dean 
Witter Funds (for which the Exchange Privilege is available) pursuant to this 
Exchange Privilege by contacting their account executive (no Exchange 
Privilege Authorization Form is required). Other shareholders (and those 
shareholders who are clients of DWR or another Selected Broker-Dealer but who 
wish to make exchanges directly by telephoning the Transfer Agent) must 
complete and forward to the Transfer Agent an Exchange Privilege 
Authorization Form, copies of which may be obtained from the Transfer Agent, 
to initiate an exchange. If the Authorization Form is used, exchanges may be 
made in writing or by contacting the Transfer Agent at (800) 869-NEWS 
(toll-free). 

   The Fund will employ reasonable procedures to confirm that exchange 
instructions communicated over the telephone are genuine. Such procedures may 
include requiring various forms of personal identification such as name, 
mailing address, social security or other tax identification number and DWR 
or other Selected Broker-Dealer account number (if any). Telephone 
instructions may also be recorded. If such procedures are not employed, the 
Fund may be liable for any losses due to unauthorized or fraudulent 
instructions. 

   Telephone exchange instructions will be accepted if received by the 
Transfer Agent between 9:00 a.m. and 4:00 p.m., New York time, on any day the 
New York Stock Exchange is open. Any shareholder wishing to make an exchange 
who has previously filed an Exchange Privilege Authorization Form and who is 
unable to reach the Fund by telephone should contact his or her DWR or other 
Selected Broker-Dealer account executive, if appropriate, or make a written 
exchange request. Shareholders are advised that during periods of drastic 
economic or market changes, it is possible that the telephone exchange 
procedures may be difficult to implement, although this has not been the case 
with the Dean Witter Funds in the past. 

   For further information regarding the Exchange Privilege, shareholders 
should contact their account executive or the Transfer Agent. 

REDEMPTIONS AND REPURCHASES 
- ----------------------------------------------------------------------------- 

   REDEMPTION. Shares of each Class of the Fund can be redeemed for cash at 
any time at the net asset value per share next determined less the amount of 
any applicable CDSC in the case of Class A, Class B or Class C shares (see 
"Purchase of Fund Shares"). If shares are held in a shareholder's account 
without a share certificate, a written request for redemption sent to the 
Fund's Transfer Agent at P. O. Box 983, Jersey City, NJ 07303 is required. If 
certificates are held by the shareholder, the shares may be redeemed by 
surrendering the certificates with a written request for redemption, along 
with any additional documentation required by the Transfer Agent. 

REPURCHASE. DWR and other Selected Broker-Dealers are authorized to 
repurchase shares represented by a share certificate which is delivered to 
any of their offices. Shares held in a shareholder's account without a share 
certificate may also be repurchased by DWR and other Selected Broker-Dealers 
upon the telephonic request of the shareholder. The repurchase price is the 
net asset value per share next determined (see "Purchase of Fund Shares") 
after such purchase order is received by DWR or other Selected Broker-Dealer, 
reduced by any applicable CDSC. 

   The CDSC, if any, will be the only fee imposed upon repurchase by the 
Fund, the Distributor or DWR. The offer by DWR and other Selected 
Broker-Dealers to repurchase shares may be suspended without notice by them 
at any time. In that event, shareholders may redeem their shares through the 
Fund's Transfer Agent as set forth above under "Redemption." 

PAYMENT FOR SHARES REDEEMED OR REPURCHASED. Payment for shares presented for 
repurchase or redemption will be made by check within seven days after 
receipt by the Transfer Agent of the certificate and/or written request in 
good order. Such payment may be postponed or the right of redemption 
suspended under unusual 

                               22           
<PAGE>
circumstances, e.g. when normal trading is not taking place on the New York 
Stock Exchange. If the shares to be redeemed have recently been purchased by 
check, payment of the redemption proceeds may be delayed for the minimum time 
needed to verify that the check used for investment has been honored (not 
more than fifteen days from the time of receipt of the check by the Transfer 
Agent). Shareholders maintaining margin accounts with DWR or another Selected 
Dealer are referred to their account executive regarding restrictions on 
redemption of shares of the Fund pledged in the margin account. 

REINSTATEMENT PRIVILEGE. A shareholder who has had his or her shares redeemed 
or repurchased and has not previously exercised this reinstatement privilege 
may, within 35 days after the date of the redemption or repurchase, reinstate 
any portion or all of the proceeds of such redemption or repurchase in shares 
of the Fund in the same Class from which such shares were redeemed or 
repurchased, at their net asset value next determined after a reinstatement 
request, together with the proceeds, is received by the Transfer Agent and 
receive a pro rata credit for any CDSC paid in connection with such 
redemption or repurchase. 

INVOLUNTARY REDEMPTION. The Fund reserves the right, upon sixty days' notice, 
to redeem, at their net asset value, the shares of any shareholder (other 
than shares held in an Individual Retirement Account or Custodial Account 
under Section 403(b)(7) of the Internal Revenue Code) whose shares due to 
redemptions by the shareholder have a value of less than $100, or such lesser 
amount as may be fixed by the Board of Trustees, or, in the case of an 
account opened through EasyInvest (Service Mark), if after twelve months the 
shareholder has invested less than $1,000 in the account. However, before the 
Fund redeems such shares and sends the proceeds to the shareholder, it will 
notify the shareholder that the value of the shares is less than the 
applicable amount and allow the shareholder sixty days to make an additional 
investment in an amount which will increase the value of the account to at 
least the applicable amount before the redemption is processed. No CDSC will 
be imposed on any involuntary redemption. 

DIVIDENDS, DISTRIBUTIONS AND TAXES 
- ----------------------------------------------------------------------------- 

   DIVIDENDS AND DISTRIBUTIONS. The Fund declares dividends separately for 
each Class of shares and intends to distribute substantially all of its net 
investment income and net realized short-term and long-term capital gains, if 
any, at least once each year. The Fund may, however, determine either to 
distribute or to retain all or part of any net long-term capital gains in any 
year for reinvestment. 

   All dividends and any capital gains distributions will be paid in 
additional shares of the same Class and automatically credited to the 
shareholder's account without issuance of a share certificate unless the 
shareholder requests in writing that all dividends be paid in cash. Shares 
acquired by dividend and distribution reinvestments will not be subject to 
any front-end sales charge or CDSC. Class B shares acquired through dividend 
and distribution reinvestments will become eligible for conversion to Class A 
shares on a pro rata basis. Distributions paid on Class A and Class D shares 
will be higher than for Class B and Class C shares because distribution fees 
paid by Class B and Class C shares are higher. (See "Shareholder 
Services--Automatic Investment of Dividends and Distributions".) 

TAXES. Because the Fund intends to distribute all of its net investment 
income and net short-term capital gains to shareholders and otherwise remain 
qualified as a regulated investment company under Subchapter M of the 
Internal Revenue Code, it is not expected that the Fund will be required to 
pay any federal income tax. Shareholders who are required to pay taxes on 
their income will normally have to pay federal income taxes, and any state 
income taxes, on the dividends and distributions they receive from the Fund. 
Such dividends and distributions, to the extent that they are derived from 
net investment income or short-term capital gains, are taxable to the 
shareholder as ordinary dividend income regardless of whether the shareholder 
receives such distributions in additional shares or in cash. Any dividends 
declared in the last quarter of any calendar year which are paid in the 
following year prior to February 1 will be deemed, for tax purposes, to have 
been received by the shareholder in the prior year. 

   One of the requirements for the Fund to remain qualified as a regulated 
investment company is that less than 30% of the Fund's gross income be 
derived from gains from the sale or other disposition of securities held for 
less than three months. Accordingly, the Fund may be restricted in the 
writing of options on securities held for less than three months, in the 
writing of options which expire in less than three months, and in effecting 
closing transactions with respect to call or put options which have been 
written or purchased less than three months prior to such transactions. The 
Fund may also be restricted in its ability to engage in transactions 
involving futures contracts. 

   Distributions of net long-term capital gains, if any, are taxable to 
shareholders as long-term capital gains regardless of how long a shareholder 
has held the Fund's shares and regardless of whether the distribution is 
received in additional shares or in cash. Capital gains distributions are not 
eligible for the dividends received deduction. 

   The Fund may at times make payments from sources other than income or net 
capital gains. Payments from 

                               23           
<PAGE>
such sources would, in effect, represent a return of a portion of each 
shareholder's investment. All, or a portion, of such payments would not be 
taxable to shareholders. 

   After the end of the calendar year, shareholders will be sent full 
information on their dividends and capital gains distributions for tax 
purposes, including information as to the portion taxable as ordinary income, 
the portion taxable as long-term capital gains, and the amount of dividends 
eligible for the Federal dividends received deduction available to 
corporations. To avoid being subject to a 31% federal backup withholding tax 
on taxable dividends, capital gains distributions and the proceeds of 
redemptions and repurchases, shareholders' taxpayer identification numbers 
must be furnished and certified as to their accuracy. 

   Shareholders should consult their tax advisers as to the applicability of 
the foregoing to their current situation. 

PERFORMANCE INFORMATION 
- ----------------------------------------------------------------------------- 

   From time to time the Fund may quote its "total return" in advertisements 
and sales literature. These figures are computed separately for Class A, 
Class B, Class C and Class D shares. The total return of the Fund is based on 
historical earnings and is not intended to indicate future performance. The 
"average annual total return" of the Fund refers to a figure reflecting the 
average annualized percentage increase (or decrease) in the value of an 
initial investment in a Class of the Fund of $1,000 over periods of one, five 
and ten years, or over the life of the Fund, if less than any of the 
foregoing. Average annual total return reflects all income earned by the 
Fund, any appreciation or depreciation of the Fund's assets, all expenses 
incurred by the applicable Class and all sales charges which would be 
incurred by shareholders, for the stated periods. It also assumes 
reinvestment of all dividends and distributions paid by the Fund. 

   In addition to the foregoing, the Fund may advertise its total return for 
each Class over different periods of time by means of aggregate, average, 
year-by-year or other types of total return figures. Such calculations may or 
may not reflect the deduction of any sales charge which, if reflected, would 
reduce the performance quoted. The Fund may also advertise the growth of 
hypothetical investments of $10,000, $50,000 and $100,000 in each Class of 
shares of the Fund. The Fund from time to time may also advertise its 
performance relative to certain performance rankings and indexes compiled by 
independent organizations, such as mutual fund performance rankings of Lipper 
Analytical Services, Inc., the S&P Mid-Cap Index, NASDAQ Composite, Russell 
Mid Cap Index, S&P 500 Index and the Wilshire Mid Cap Index. 

ADDITIONAL INFORMATION 
- ----------------------------------------------------------------------------- 

   VOTING RIGHTS. All shares of beneficial interest of the Fund are of $0.01 
par value and are equal as to earnings, assets and voting privileges except 
that each Class will have exclusive voting privileges with respect to matters 
relating to distribution expenses borne solely by such Class or any other 
matter in which the interests of one Class differ from the interests of any 
other Class. In addition, Class B shareholders will have the right to vote on 
any proposed material increase in Class A's expenses, if such proposal is 
submitted separately to Class A shareholders. Also, as discussed herein, 
Class A, Class B and Class C bear the expenses related to the distribution of 
their respective shares. 

   The Fund is not required to hold Annual Meetings of Shareholders and, in 
ordinary circumstances, the Fund does not intend to hold such meetings. The 
Trustees may call Special Meetings of Shareholders for action by shareholder 
vote as may be required by the Act or the Declaration of Trust. Under certain 
circumstances, the Trustees may be removed by action of the Trustees or by 
the Shareholders. 

   Under Massachusetts law, shareholders of a business trust may, under 
certain limited circumstances, be held personally liable as partners for the 
obligations of the Fund. However, the Declaration of Trust contains an 
express disclaimer of shareholder liability for acts or obligations of the 
Fund, requires that notice of such Fund obligations include such disclaimer, 
and provides for indemnification out of the Fund's property for any 
shareholder held personally liable for the obligations of the Fund. Thus, the 
risk of a shareholder incurring financial loss on account of shareholder 
liability is limited to circumstances in which the Fund itself would be 
unable to meet its obligations. Given the above limitations on shareholder 
personal liability, and the nature of the Fund's assets and operations, the 
possibility of the Fund being unable to meet its obligations is remote and 
thus, in the opinion of Massachusetts counsel to the Fund, the risk to Fund 
shareholders of personal liability is remote. 

CODE OF ETHICS. Directors, officers and employees of InterCapital, Dean 
Witter Services Company Inc. and the Distributor are subject to a strict Code 
of Ethics adopted by those companies. The Code of Ethics is intended to 
ensure that the interests of shareholders and other clients are placed ahead 
of any personal interest, that no undue personal benefit is obtained from a 
person's employment activities and that actual and potential conflicts of 
interest are avoided. To achieve these goals 

                               24           
<PAGE>
and comply with regulatory requirements, the Code of Ethics requires, among 
other things, that personal securities transactions by employees of the 
companies be subject to an advance clearance process to monitor that no Dean 
Witter Fund is engaged at the same time in a purchase or sale of the same 
security. The Code of Ethics bans the purchase of securities in an initial 
public offering, and also prohibits engaging in futures and options 
transactions and profiting on short-term trading (that is, a purchase within 
sixty days of a sale or a sale within sixty days of a purchase) of a 
security. In addition, investment personnel may not purchase or sell a 
security for their personal account within thirty days before or after any 
transaction in any Dean Witter Fund managed by them. Any violations of the 
Code of Ethics are subject to sanctions, including reprimand, demotion or 
suspension or termination of employment. The Code of Ethics comports with 
regulatory requirements and the recommendations in the 1994 report by the 
Investment Company Institute Advisory Group on Personal Investing. 

MASTER/FEEDER CONVERSION. The Fund reserves the right to seek to achieve its 
investment objective by investing all of its investable assets in a 
diversified, open-end management investment company having the same 
investment objective and policies and substantially the same investment 
restrictions as those applicable to the Fund. 

SHAREHOLDER INQUIRIES. All inquiries regarding the Fund should be directed to 
the Fund at the telephone numbers or address set forth on the front cover of 
this Prospectus. 

                               25           

<PAGE>

DEAN WITTER 
MID-CAP GROWTH FUND 
TWO WORLD TRADE CENTER 
NEW YORK, NEW YORK 10048 

TRUSTEES 

Michael Bozic 
Charles A. Fiumefreddo 
Edwin J. Garn 
John R. Haire 
Dr. Manuel H. Johnson 
Michael E. Nugent 
Philip J. Purcell 
John L. Schroeder 

OFFICERS 

Charles A. Fiumefreddo 
Chairman and Chief Executive Officer 

Barry Fink 
Vice President, Secretary and 
General Counsel 

Kirk Balzer 
Vice President 

Thomas F. Caloia 
Treasurer 

CUSTODIAN 

The Bank of New York 
90 Washington Street 
New York, New York 10286 

TRANSFER AGENT AND 
DIVIDEND DISBURSING AGENT 

Dean Witter Trust Company 
Harborside Financial Center 
Plaza Two 
Jersey City, New Jersey 07311 

INDEPENDENT ACCOUNTANTS 

Price Waterhouse LLP 
1177 Avenue of the Americas 
New York, New York 10036 

INVESTMENT MANAGER 

Dean Witter InterCapital Inc. 




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