MERRILL LYNCH MUN INTERM TERM FD OF ML MUN SER TR
485B24E, 1995-02-28
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   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 27, 1995
    
 
                                                 SECURITIES ACT FILE NO. 33-8058
                                        INVESTMENT COMPANY ACT FILE NO. 811-4802
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              -------------------
 
                                   FORM N-1A
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933          /X/
                          PRE-EFFECTIVE AMENDMENT NO.                        / /
                        POST-EFFECTIVE AMENDMENT NO. 12                      /X/
                                     AND/OR
        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940      /X/
                                AMENDMENT NO. 13                             /X/
                        (CHECK APPROPRIATE BOX OR BOXES)
                              -------------------
 
                                 MERRILL LYNCH
                        MUNICIPAL INTERMEDIATE TERM FUND
                    OF MERRILL LYNCH MUNICIPAL SERIES TRUST
               (Exact name of registrant as specified in charter)
 
           800 SCUDDERS MILL ROAD
           PLAINSBORO, NEW JERSEY                                  08536
  (Address of principal executive offices)                      (Zip code)
 
             Registrant's Telephone Number, including Area Code (609) 282-2800
 
                                 ARTHUR ZEIKEL
                      MERRILL LYNCH MUNICIPAL SERIES TRUST
                 800 SCUDDERS MILL ROAD, PLAINSBORO, NEW JERSEY
        MAILING ADDRESS: P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011
                    ](Name and address of agent for service)
                              -------------------
                                   Copies to:
 
<TABLE>
<S>                                            <C>
          Philip L. Kirstein, Esq.                        Counsel for the Trust:
       MERRILL LYNCH ASSET MANAGEMENT                          BROWN & WOOD
                P.O. Box 9011                             One World Trade Center
      Princeton, New Jersey 08543-9011                 New York, New York 10048-0557
                                                   Attention: Thomas R. Smith, Jr., Esq.
</TABLE>
 
   
 IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX):
    
   
                  /X/ immediately upon filing pursuant to paragraph (b)
                  / / on (date) pursuant to paragraph (b)
    
   
                  / / 60 days after filing pursuant to paragraph (a)(1)
                  / / on (date) pursuant to paragraph (a)(1)
                  / / 75 days after filing pursuant to paragraph (a)(2)
                  / / on (date) pursuant to paragraph (a)(2) of Rule 485.
    
                    IF APPROPRIATE, CHECK THE FOLLOWING BOX:
 
                  / / this post-effective amendment designates a new effective
                      date for a previously filed post-effective amendment.
 
   
   THE REGISTRANT HAS REGISTERED AN INDEFINITE NUMBER OF ITS SHARES OF
BENEFICIAL INTEREST UNDER THE SECURITIES ACT OF 1933 PURSUANT TO RULE 24F-2
UNDER THE INVESTMENT COMPANY ACT OF 1940. THE NOTICE REQUIRED BY SUCH RULE FOR
THE REGISTRANT'S MOST RECENT FISCAL YEAR WAS FILED ON DECEMBER 27, 1994.
    
                              -------------------
 
        CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933
 
   
<TABLE><CAPTION>
                                           AMOUNT OF      PROPOSED MAXIMUM      PROPOSED
        TITLE OF SECURITIES               SHARES BEING     OFFERING PRICE  MAXIMUM AGGREGATE     AMOUNT OF
          BEING REGISTERED                 REGISTERED         PER UNIT       OFFERING PRICE   REGISTRATION FEE
<S>                                    <C>               <C>               <C>               <C>
Shares of Beneficial Interest
 (par value $.10 per share)                 1,643,159            $9.85           $289,994          $100
</TABLE>
    
 
   
(1) The calculation of the maximum aggregate offering price is made pursuant to
    Rule 24e-2 under the Investment Company Act of 1940.
    
 
   
(2) The total amount of securities redeemed or repurchased during Registrant's
    previous fiscal year was 6,585,229 shares.
    
 
   
(3) 4,971,511 of the shares described in (2) above have been used for reduction
    pursuant to Rule 24e-2(a) or Rule 24f-2(c) under the Investment Company Act
    of 1940 in previous filings during Registrant's current fiscal year.
    
 
   
(4) 1,613,718 of the shares redeemed during Registrant's previous fiscal year
    are being used for the reduction of the registration fee in this amendment
    to the Registration Statement.
    
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                 MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND
                    OF MERRILL LYNCH MUNICIPAL SERIES TRUST
                      REGISTRATION STATEMENT ON FORM N-1A
                             CROSS REFERENCE SHEET
 
<TABLE>
<CAPTION>
N-1A ITEM NO.                                                          LOCATION
- --------------                                          --------------------------------------
<S>             <C>                                     <C>
PART A
 Item 1.        Cover Page............................  Cover Page
 Item 2.        Synopsis..............................  Fee Table
 Item 3.        Condensed Financial Information.......  Financial Highlights; Performance Data
 Item 4.        General Description of Registrant.....  Cover Page; Investment Objective and
                                                         Policies; Additional Information
 Item 5.        Management of the Fund................  Fee Table; Investment Objective and
                                                         Policies; Portfolio Transactions;
                                                         Management of the Trust; Inside Back
                                                         Cover Page
 Item 5A.       Management's Discussion of Fund
                Performance...........................  Not Applicable
 Item 6.        Capital Stock and Other Securities....  Cover Page; Additional Information
                Purchase of Securities Being
 Item 7.        Offered...............................  Cover Page; Merrill Lynch Select
                                                         PricingSMSystem; Fee Table; Purchase
                                                         of Shares; Shareholder Services;
                                                         Additional Information; Inside Back
                                                         Cover Page
 Item 8.        Redemption or Repurchase..............  Merrill Lynch Select PricingSM System;
                                                        Fee Table; Purchase of Shares;
                                                         Redemption of Shares
 Item 9.        Pending Legal Proceedings.............  Not Applicable
PART B
 Item 10.       Cover Page............................  Cover Page
 Item 11.       Table of Contents.....................  Back Cover Page
 Item 12.       General Information and History.......  Not Applicable
 Item 13.       Investment Objectives and Policies....  Investment Objective and Policies;
                                                         Investment Restrictions
 Item 14.       Management of the Fund................  Management of the Trust
 Item 15.       Control Persons and Principal Holders
                 of Securities........................  Management of the Trust; Additional
                                                         Information
                Investment Advisory and Other
 Item 16.       Services..............................  Management of the Trust; Purchase of
                                                         Shares; General Information
                Brokerage Allocation and Other
 Item 17.       Practices.............................  Portfolio Transactions
 Item 18.       Capital Stock and Other Securities....  General Information
 Item 19.       Purchase, Redemption and Pricing of
                Securities Being Offered..............  Purchase of Shares; Redemption of
                                                        Shares; Determination of Net Asset
                                                         Value; Shareholder Services
 Item 20.       Tax Status............................  Distributions and Taxes
 Item 21.       Underwriters..........................  Purchase of Shares
 Item 22.       Calculation of Performance Data.......  Performance Data
 Item 23.       Financial Statements..................  Financial Statements
PART C
 Information required to be included in Part C is set forth under the appropriate Item, so
numbered, in Part C to this Registration Statement.
</TABLE>
<PAGE>
   
PROSPECTUS
FEBRUARY 27, 1995
    
                 MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND
                      MERRILL LYNCH MUNICIPAL SERIES TRUST
  P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011  .  PHONE NO. (609) 282-2800
 
    Merrill Lynch Municipal Intermediate Term Fund (the "Fund") of Merrill Lynch
Municipal Series Trust (the "Trust") is a mutual fund seeking to provide
shareholders with as high a level of income exempt from Federal income taxes as
is consistent with its investment policies and prudent investment management.
Under normal market conditions, the Fund invests primarily in a diversified
portfolio of investment grade obligations whose interest, in the opinion of bond
counsel to the issuer, is exempt from Federal income taxes, with a dollar
weighted average maturity of five to twelve years. At times, the Fund may seek
to hedge its portfolio through the use of futures and options transactions to
reduce volatility of the net asset value of Fund shares. There can be no
assurance that the investment objective of the Fund will be realized.
 
    Pursuant to the Merrill Lynch Select PricingSM System, the Fund offers four
classes of shares, each with a different combination of sales charges, ongoing
fees and other features. The Merrill Lynch Select PricingSM System permits 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. See
"Merrill Lynch Select PricingSM System" on page 3.
 
    Shares may be purchased directly from Merrill Lynch Funds Distributor, Inc.
(the "Distributor"), P.O. Box 9011, Princeton, New Jersey 08543-9011 [(609)
282-2800], or from securities dealers which have entered into dealer agreements
with the Distributor, including Merrill Lynch, Pierce, Fenner & Smith
Incorporated ("Merrill Lynch"). The minimum initial purchase is $1,000 and the
minimum subsequent purchase is $50. Merrill Lynch may charge its customers a
processing fee (presently $4.85) for confirming purchases and repurchases.
Purchases and redemptions directly through the Fund's transfer agent are not
subject to the processing fee. See "Purchase of Shares" and "Redemption of
Shares".
                              -------------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
    EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
       PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                              -------------------
 
   
    This Prospectus is a concise statement of information about the Fund that is
relevant to making an investment in the Fund. This Prospectus should be retained
for future reference. A statement containing additional information about the
Fund, dated February 27, 1995 (the "Statement of Additional Information"), has
been filed with the Securities and Exchange Commission and can be obtained,
without charge, by calling or by writing the Trust at the above telephone number
or address. The Statement of Additional Information is hereby incorporated by
reference into this Prospectus. The Fund is a separate series of the Trust, a
diversified, open-end management investment company organized as a Massachusetts
business trust.
    
                              -------------------
 
                    MERRILL LYNCH ASSET MANAGEMENT--MANAGER
               MERRILL LYNCH FUNDS DISTRIBUTOR, INC.--DISTRIBUTOR
<PAGE>
                                   FEE TABLE
 
    A general comparison of the sales arrangements and other nonrecurring and
recurring expenses applicable to shares of the Fund follows:
 
   
<TABLE>
<CAPTION>
                                      CLASS A(A)            CLASS B(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)..................      1.0%(c)              None                      None           1.0% (c)
 Sales Charge Imposed on Dividend
Reinvestments.......................      None                 None                      None           None
 Deferred Sales Charge (as a
   percentage of original purchase
   price or redemption proceeds,
whichever is lower).................      None(d)        1.0% for one year        1.0% for one year     None (d)
 Exchange Fee.......................      None                 None                      None           None
ANNUAL FUND OPERATING EXPENSES
 (AS A PERCENTAGE OF AVERAGE NET
 ASSETS)(E)
 Management Fees(f).................     0.55%                 0.55%                    0.55%          0.55%
 12b-1 Fees(g):
   Account Maintenance Fees.........      None                 0.20%                    0.20%          0.10%
   Distribution Fees................      None                 0.10%                    0.10%           None
                                                   (Class B shares convert to
                                                   Class D shares automatically
                                                   after approximately ten
                                                   years, cease being subject to
                                                   distribution fees and become
                                                   subject to reduced account
                                                   maintenance fees)
 Other Expenses:
   Custodial Fees...................     0.01%                 0.01%                    0.01%          0.01%
   Shareholder Servicing Costs(h)...     0.04%                 0.05%                    0.05%          0.04%
   Other............................     0.16%                 0.16%                    0.16%          0.16%
     Total Other Expenses...........     0.21%                 0.22%                    0.22%          0.21%
 Total Fund Operating Expenses......     0.76%                 1.07%                    1.07%          0.86%
</TABLE>
    
 
- ------------
 
   
<TABLE>
<S>   <C>
 (a)  Class A shares are sold to a limited group of investors including existing Class A
      shareholders and investment programs. See "Purchase of Shares--Initial Sales Charge
      Alternatives--Class A and Class D Shares"--page 24.
 
 (b)  Class B shares convert to Class D shares automatically approximately ten years after
      initial purchase. See "Purchase of Shares--Deferred Sales Charge Alternative--Class B
      Shares"--page 26.
 
 (c)  Reduced for purchases of $100,000 and over. Class A or Class D purchases of $1,000,000
      or more may not be subject to an initial sales charge. See "Purchase of Shares--Initial
      Sales Charge Alternatives--Class A and Class D Shares"--page 24.
 
 (d)  Class A and Class D shares are not subject to a contingent deferred sales charge
      ("CDSC"), except that purchases of $1,000,000 or more which may not be subject to an
      initial sales charge may instead be subject to a CDSC of 0.20% of amounts redeemed
      within the first year of purchase. See "Purchase of Shares--Initial Sales Charge
      Alternatives--Class A and Class D Shares"--page 24.
 
 (e)  Information for Class A and Class B shares is stated for the fiscal year ended October
      31, 1994. Information under "Other Expenses" for Class C and Class D shares is estimated
      for the fiscal year ending October 31, 1995.
 
 (f)  See "Management of the Fund--Management and Advisory Arrangements"--page 20.
 
 (g)  See "Purchase of Shares--Distribution Plans"--page 29.
 
 (h)  See "Management of the Fund--Transfer Agency Services"--page 22.
</TABLE>
    
 
                                       2
<PAGE>
EXAMPLE:
   
<TABLE>
<CAPTION>
                                                                      CUMULATIVE EXPENSES PAID FOR THE
                                                                                 PERIOD OF:
                                                                 -------------------------------------------
                                                                 1 YEAR     3 YEARS     5 YEARS     10 YEARS
                                                                 ------     -------     -------     --------
<S>                                                              <C>        <C>         <C>         <C>
An investor would pay the following expenses on a $1,000
 investment including the maximum $10.00 initial sales charge
 (Class A and Class D shares only) and assuming (1) the Total
 Fund Operating Expenses for each class set forth above; (2)
 a 5% annual return throughout the periods and (3) redemption
 at the end of the period:
   Class A...................................................     $ 18        $34         $52         $103
   Class B...................................................     $ 21        $34         $59         $131
   Class C...................................................     $ 21        $34         $59         $131
   Class D...................................................     $ 19        $37         $57         $115
An investor would pay the following expenses on the same
 $1,000 investment assuming no redemption at the end of the
 period:
   Class A...................................................     $ 18        $34         $52         $103
   Class B...................................................     $ 11        $34         $59         $131
   Class C...................................................     $ 11        $34         $59         $131
   Class D...................................................     $ 19        $37         $57         $115
</TABLE>
    
 
   
    Class C shares of the Fund will be offered only in exchange for Class C
shares of MLAM-advised mutual funds. See "Shareholder Services--Exchange
Privilege"--page 33.
    
 
    The foregoing Fee Table is intended to assist investors in understanding the
costs and expenses that a shareholder in the Fund will bear directly or
indirectly. The Example set forth above assumes reinvestment of all dividends
and distributions and utilizes a 5% annual rate of return as mandated by
Securities and Exchange Commission (the "Commission") regulations. THE EXAMPLE
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES OR ANNUAL
RATES OF RETURN, AND ACTUAL EXPENSES OR ANNUAL RATES OF RETURN MAY BE MORE OR
LESS THAN THOSE ASSUMED FOR PURPOSES OF THE EXAMPLE. Class B and Class C
shareholders who hold their shares for an extended period of time may pay more
in Rule 12b-1 distribution fees than the economic equivalent of the maximum
front-end sales charges permitted under the Rules of Fair Practice of the
National Association of Securities Dealers, Inc. (the "NASD"). Merrill Lynch may
charge its customers a processing fee (presently $4.85) for confirming purchases
and repurchases. Purchases and redemptions directly through the Fund's transfer
agent are not subject to the processing fee. See "Purchase of Shares" and
"Redemption of Shares".
 
                     MERRILL LYNCH SELECT PRICINGSM SYSTEM
 
    The Fund offers four classes of shares under the Merrill Lynch Select
PricingSM System. Class A, Class B and Class D shares may be purchased at a
price equal to the next determined net asset value per share subject to the
sales charges and ongoing fee arrangements described below. Shares of Class A
and Class D are sold to investors choosing the initial sales charge
alternatives, and shares of Class B are sold to investors choosing the deferred
sales charge alternative. Class C shares are not offered for sale by the Fund
but are available for exchange with Class C shares of other MLAM-advised mutual
funds. The Merrill Lynch Select PricingSM System is used by more than 50 mutual
funds advised by Merrill Lynch Asset Management, L.P. ("MLAM" or the "Manager")
or an affiliate of MLAM, Fund Asset
 
                                       3
<PAGE>
Management, L.P. ("FAM"). Funds advised by MLAM or FAM are referred to herein as
"MLAM-advised mutual funds".
 
   
    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 and has the same
rights, except that Class B, Class C and Class D shares bear the expenses of the
ongoing account maintenance fees and Class B and Class C shares bear the
expenses of the ongoing distribution fees and the additional incremental
transfer agency costs resulting from the deferred sales charge arrangements. The
deferred sales charges and account maintenance fees that are imposed on Class B
and Class C shares, as well as the account maintenance fees that are imposed on
the Class D shares, are imposed directly against those classes and not against
all assets of the Fund and, accordingly, such charges will not affect the net
asset value of any other class or have any impact on investors choosing another
sales charge option. Dividends paid by the Fund for each class of shares will be
calculated in the same manner at the same time and will differ only to the
extent that account maintenance and distribution fees and any incremental
transfer agency costs relating to a particular class are borne exclusively by
that class. Each class has different exchange privileges. See "Shareholder
Services--Exchange Privilege".
    
 
    Investors should understand that the purpose and function of the initial
sales charges with respect to the Class A and Class D shares are the same as
those of the deferred sales charges with respect to the Class B and Class C
shares in that the sales charges applicable to each class provide for the
financing of the distribution of the shares of the Fund. The
distribution-related revenues paid with respect to a class will not be used to
finance the distribution expenditures of another class. Sales personnel may
receive different compensation for selling different classes of shares.
 
    The following table sets forth a summary of the distribution arrangements
for each class of shares under the Merrill Lynch Select PricingSM System,
followed by a more detailed description of each class and a discussion of the
factors that investors should consider in determining the method of purchasing
shares under the Merrill Lynch Select PricingSM System that the investor
believes is most beneficial under his particular circumstances. More detailed
information as to each class of shares is set forth under "Purchase of Shares".
 
<TABLE>
<CAPTION>
                                              ACCOUNT
                                            MAINTENANCE    DISTRIBUTION
CLASS            SALES CHARGE(1)                FEE            FEE              CONVERSION FEATURE
<C>      <S>                                <C>            <C>             <C>
   A     Maximum 1.0% initial sales             No              No                      No
           charge(2)(3)
   B     1.0% CDSC for one year                0.20%          0.10%        B shares convert to D shares
                                                                             automatically after
                                                                             approximately ten years(4)
   C(5)  1.0% CDSC for one year                0.20%          0.10%                     No
   D     Maximum 1.0% initial sales            0.10%            No                      No
           charge(3)
</TABLE>
 
                                                   (Footnotes on following page)
 
                                       4
<PAGE>
(Footnotes for preceding page)
(1) Initial sales charges are imposed at the time of purchase as a percentage of
    the offering price. Contingent deferred sales charges ("CDSCs") are imposed
    if the redemption occurs within the applicable CDSC time period. The charge
    will be assessed on an amount equal to the lesser of the proceeds of
    redemption or the cost of the shares being redeemed.
 
(2) Offered only to eligible investors. See "Purchase of Shares--Initial Sales
    Charge Alternatives--Class A and Class D Shares--Eligible Class A
    Investors".
 
(3) Reduced for purchases of $100,000 or more. Class A and Class D share
    purchases of $1,000,000 or more may not be subject to an initial sales
    charge but instead will be subject to a 0.20% CDSC for one year. See "Class
    A" and "Class D" below.
 
(4) The conversion period for dividend reinvestment shares and certain
    retirement plans is modified. Also, Class B shares of certain other
    MLAM-advised mutual funds into which exchanges may be made have an eight
    year conversion period. If Class B shares of the Fund are exchanged for
    Class B shares of another MLAM-advised mutual fund, the conversion period
    applicable to the Class B shares acquired in the exchange will apply, and
    the holding period for the shares exchanged will be tacked onto the holding
    period for the shares acquired.
 
(5) Class C shares will be issued only upon exchange for Class C shares of
    another MLAM-advised mutual fund. See "Shareholder Services--Exchange
    Privilege".
 
   
<TABLE>
<S>        <C>
Class A:   Class A shares incur an initial sales charge when they are purchased and bear no
           ongoing distribution or account maintenance fees. Class A shares are offered to a
           limited group of investors and also will be issued upon reinvestment of dividends
           on outstanding Class A shares. Investors that currently own Class A shares in a
           shareholder account are entitled to purchase additional Class A shares in that
           account. In addition, Class A shares will be offered to Merrill Lynch & Co., Inc.
           ("ML & Co.") and its subsidiaries (the term "subsidiaries", when used herein with
           respect to ML & Co., includes MLAM, FAM and certain other entities directly or
           indirectly wholly-owned and controlled by ML & Co.) and their directors and
           employees and to members of the Boards of MLAM-advised mutual funds. The maximum
           initial sales charge is 1.0%, which is reduced for purchases of $100,000 and
           over. Purchases of $1,000,000 or more may not be subject to an initial sales
           charge but if the initial sales charge is waived such purchases will be subject
           to a contingent deferred sales charge ("CDSC") of 0.20% if the shares are
           redeemed within one year after purchase. Sales charges also are reduced under a
           right of accumulation which takes into account the investor's holdings of all
           classes of all MLAM-advised mutual funds. See "Purchase of Shares--Initial Sales
           Charge Alternatives--Class A and Class D Shares".
Class B:   Class B shares do not incur a sales charge when they are purchased, but they are
           subject to an ongoing account maintenance fee of 0.20% and an ongoing
           distribution fee of 0.10% of the Fund's average net assets attributable to Class
           B shares and a CDSC if they are redeemed within one year of purchase.
           Approximately ten years after issuance, Class B shares will convert automatically
           into Class D shares of the Fund, which are subject to lower account maintenance
           fees than Class B shares and no distribution fee. Class B shares of certain other
           MLAM-advised mutual funds into which exchanges may be made convert into Class D
           shares automatically after approximately eight years. If Class B shares of the
           Fund are exchanged for Class B shares of another MLAM-advised mutual fund, the
           conversion period applicable to the Class B shares acquired in the exchange will
           apply, and the holding
</TABLE>
    
 
                                       5
<PAGE>
   
<TABLE>
<S>        <C>
           period for the shares exchanged will be tacked onto the holding period for the
           shares acquired. Automatic conversion of Class B shares into Class D shares will
           occur at least once a month on the basis of the relative net asset values of the
           shares of the two classes on the conversion date, without the imposition of any
           sales load, fee or other charge. Conversion of Class B shares to Class D shares
           will not be deemed a purchase or sale of the shares for Federal income tax
           purposes. Shares purchased through reinvestment of dividends on Class B shares
           also will convert automatically to Class D shares. The conversion period for
           dividend reinvestment shares is modified as described under "Purchase of
           Shares--Deferred Sales Charge Alternative--Class B Shares--Conversion of Class B
           Shares to Class D Shares".
Class C:   Class C shares of the Fund are not available for purchase but will be issued only
           pursuant to the exchange privilege to holders of Class C shares of other
           MLAM-advised mutual funds who elect to exchange Class C shares of such other
           MLAM-advised mutual funds for Class C shares of the Fund. Class C shares are
           subject to an ongoing account maintenance fee of 0.20% and an ongoing
           distribution fee of 0.10% of the Fund's average net assets attributable to Class
           C shares. Although Class C shares, like Class B shares, are subject to a 1.0%
           CDSC for one year, Class C shares have no conversion feature and, accordingly, an
           investor that acquires Class C shares will be subject to distribution fees that
           will be imposed on Class C shares for an indefinite period subject to annual
           approval by the Fund's Board of Trustees and regulatory limitations.
Class D:   Class D shares incur an initial sales charge when they are purchased and are
           subject to an ongoing account maintenance fee of 0.10% of the Fund's average net
           assets attributable to Class D shares. Class D shares are not subject to an
           ongoing distribution fee or any CDSC when they are redeemed. Purchases of
           $1,000,000 or more may not be subject to an initial sales charge but if the
           initial sales charge is waived such purchases will be subject to a CDSC of 0.20%
           if the shares are redeemed within one year after purchase. The schedule of
           initial sales charges and reductions for Class D shares is the same as the
           schedule for Class A shares. Class D shares also will be issued upon conversion
           of Class B shares as described above under "Class B". See "Purchase of
           Shares--Initial Sales Charge Alternatives--Class A and Class D Shares".
</TABLE>
    
 
    The following is a discussion of the factors that investors should consider
in determining the method of purchasing shares under the Merrill Lynch Select
PricingSM System that the investor believes is most beneficial under his
particular circumstances.
 
   
    Initial Sales Charge Alternatives. Investors who prefer an initial sales
charge alternative may elect to purchase Class D shares or, if an eligible
investor, Class A shares. Investors choosing the initial sales charge
alternative who are eligible to purchase Class A shares should purchase Class A
shares rather than Class D shares because there is an account maintenance fee
imposed on Class D shares. Investors qualifying for significantly reduced
initial sales charges may find the initial sales charge alternative particularly
attractive because similar sales charge reductions are not available with
respect to the deferred sales charges imposed in connection with purchases of
Class B shares. Investors not qualifying for reduced initial sales charges who
expect to maintain their investment for an extended period of time also may
elect to purchase Class A or Class D shares, because over time the accumulated
    
 
                                       6
<PAGE>
ongoing account maintenance and distribution fees on Class B or Class C shares
may exceed the initial sales charge and, in the case of Class D shares, the
account maintenance fee. Although some investors that previously purchased Class
A shares may no longer be eligible to purchase Class A shares of other
MLAM-advised mutual funds, those previously purchased Class A shares, together
with Class B, Class C and Class D share holdings, will count toward a right of
accumulation which may qualify the investor for reduced initial sales charges on
new initial sales charge purchases. In addition, the ongoing Class B and Class C
account maintenance and distribution fees will cause Class B and Class C shares
to have higher expense ratios, pay lower dividends and have lower total returns
than the initial sales charge shares. The ongoing Class D account maintenance
fees will cause Class D shares to have a higher expense ratio, pay lower
dividends and have a lower total return than Class A shares.
 
    Deferred Sales Charge Alternative. Because no initial sales charges are
deducted at the time of purchase, Class B shares provide the benefit of putting
all of the investor's dollars to work from the time the investment is made. The
deferred sales charge alternative may be particularly appealing to investors who
do not qualify for a reduction in initial sales charges. Both Class B and Class
C shares are subject to ongoing account maintenance fees and distribution fees;
however, the ongoing account maintenance and distribution fees potentially may
be offset to the extent any return is realized on the additional funds initially
invested in Class B or Class C shares. In addition, Class B shares will be
converted into Class D shares of the Fund after a conversion period of
approximately ten years, and thereafter investors will be subject to lower
ongoing fees.
 
   
    Certain investors may elect to purchase Class B shares if they determine it
to be most advantageous to have all their funds invested initially and intend to
hold their shares for an extended period of time. Investors in Class B shares
should take into account whether they intend to redeem their shares within the
CDSC period and, if not, whether they intend to remain invested until the end of
the conversion period and thereby take advantage of the reduction in ongoing
fees resulting from the conversion into Class D shares. Although Class C
shareholders are subject to the same CDSC period and rate as Class B
shareholders, Class C shares have no conversion feature and therefore are
subject to account maintenance and distribution fees for an indefinite period of
time. In addition, while both Class B and Class C distribution fees are subject
to the limitations on asset-based sales charges imposed by the NASD, the Class B
distribution fees are further limited under a voluntary waiver of asset-based
sales charges. See "Purchase of Shares--Limitations on the Payment of Deferred
Sales Charges".
    
 
                                       7
<PAGE>
                              FINANCIAL HIGHLIGHTS
 
   
    The financial information in the table below has been audited in conjunction
with the annual audits of the financial statements of the Fund by Deloitte &
Touche LLP, independent auditors. Audited financial statements for the fiscal
year ended October 31, 1994 and the independent auditors' report are included in
the Statement of Additional Information. The following per share data and ratios
have been derived from information provided in the Fund's audited financial
statements. Financial information is not presented for Class A shares for the
period November 26, 1986 to October 30, 1988 since no shares of that class were
publicly issued prior to that period, and financial information is not presented
for Class C or Class D shares for the period November 26, 1986 to October 20,
1994 since no shares of those classes were publicly issued prior to that period.
Further information about the performance of the Fund is contained in the Fund's
most recent annual report to shareholders which may be obtained, without charge,
by calling or by writing the Fund at the telephone number or address on the
front cover of this Prospectus.
    
   
<TABLE>
<CAPTION>
                                                                         CLASS A
                                                ---------------------------------------------------------
                                                             FOR THE YEAR ENDED OCTOBER 31,
                                                ---------------------------------------------------------
                                                 1994      1993      1992      1991      1990      1989+
                                                -------   -------   -------   -------   -------   -------
<S>                                             <C>       <C>       <C>       <C>       <C>       <C>
Increase (Decrease) in Net Asset Value
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of year............  $ 10.39   $  9.70   $  9.61   $  9.24   $  9.29   $  9.45
                                                -------   -------   -------   -------   -------   -------
Investment income--net........................      .52       .54       .59       .60       .59       .59
Realized and unrealized gain (loss) on
investments--net..............................     (.77)      .69       .09       .37      (.05)     (.16)
                                                -------   -------   -------   -------   -------   -------
Total from investment operations..............     (.25)     1.23       .68       .97       .54       .43
                                                -------   -------   -------   -------   -------   -------
Less dividends:
Investment income--net........................     (.52)     (.54)     (.59)     (.60)     (.59)     (.59)
                                                -------   -------   -------   -------   -------   -------
Net asset value, end of year..................  $  9.62   $ 10.39   $  9.70   $  9.61   $  9.24   $  9.29
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
TOTAL INVESTMENT RETURN:**
Based on net asset value per share............    (2.49)%   13.01%     7.16%    10.90%     5.99%     5.03%
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
RATIOS TO AVERAGE NET ASSETS:
Expenses, excluding distribution fees.........      .76%      .75%      .86%      .85%      .92%      .90%*
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
Expenses......................................      .76%      .75%      .86%      .85%      .92%      .90%*
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
Investment income--net........................     5.19%     5.35%     5.97%     6.34%     6.39%     6.50%*
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
SUPPLEMENTAL DATA:
Net assets, end of year (in thousands)........  $27,653   $24,173   $14,068   $ 6,546   $ 2,233   $ 1,384
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
Portfolio turnover............................    52.56%    83.66%    74.20%   129.85%   236.07%    67.88%
                                                -------   -------   -------   -------   -------   -------
                                                -------   -------   -------   -------   -------   -------
</TABLE>
    
 
- ------------
 
   
   +  Class A shares commenced operations on October 31, 1988.
  ++  Class B shares commenced operations on November 26, 1986.
  ++  Class C shares commenced operations on October 21, 1994.
++++  Class D shares commenced operations on October 21, 1994.
   #  Aggregate total investment return.
   *  Annualized.
  **  Total investment returns exclude the effects of sales loads.
    
 
                                       8
<PAGE>
 
   
<TABLE>
<CAPTION>
                                   CLASS B                                          CLASS C            CLASS D
- -----------------------------------------------------------------------------  -----------------  ------------------
                                                                                FOR THE PERIOD      FOR THE PERIOD
                                                                                  OCTOBER 21,        OCTOBER 21,
                       FOR THE YEAR ENDED OCTOBER 31,                               1994++             1994++++
- -----------------------------------------------------------------------------   TO OCTOBER 31,      TO OCTOBER 31,
  1994      1993      1992     1991      1990      1989      1988     1987++         1994                1994
- --------  --------  --------  -------  --------  --------  --------  --------  -----------------  ------------------
<S>       <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>                <C>
$  10.39  $   9.69  $   9.61  $  9.24  $   9.29  $   9.45  $   9.04  $  10.00       $  9.70             $ 9.70
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
     .49       .51       .56      .57       .57       .58       .56       .51           .01                .01
    (.77)      .70       .08      .37      (.05)     (.16)      .41      (.96)         (.08)              (.08)
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
    (.28)     1.21       .64      .94       .52       .42       .97      (.45)         (.07)              (.07)
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
    (.49)     (.51)     (.56)    (.57)     (.57)     (.58)     (.56)     (.51)         (.01)              (.01)
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
$   9.62  $  10.39  $   9.69  $  9.61  $   9.24  $   9.29  $   9.45  $   9.04       $  9.62             $ 9.62
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
   (2.79)%    12.78%     6.72%   10.56%     5.68%     4.59%    10.95%    (4.62)%#         (.71)%#         (.71)%#
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
     .77%      .76%      .86%     .88%      .92%      .87%      .78%      .67%*          .88%*             .87%*
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
    1.07%     1.06%     1.16%    1.18%     1.22%     1.17%     1.08%      .97%*         1.18%*             .97%*
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
    4.87%     5.07%     5.68%    6.05%     6.09%     6.22%     6.03%     5.75%*         4.92%*            5.20%*
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
$142,152  $158,061  $124,802  $97,998  $109,388  $132,368  $158,872  $186,064       $     1             $   70
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
   52.56%    83.66%    74.20%  129.85%   236.07%    67.88%   119.78%   193.92%        52.56%             52.56%
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
- --------  --------  --------  -------  --------  --------  --------  --------        ------             ------
</TABLE>
    
 
- ------------
 
   
   +  Class A shares commenced operations on October 31, 1988.
  ++  Class B shares commenced operations on November 26, 1986.
  ++  Class C shares commenced operations on October 21, 1994.
++++  Class D shares commenced operations on October 21, 1994.
   #  Aggregate total investment return.
   *  Annualized.
  **  Total investment returns exclude the effects of sales loads.
    
 
                                       9
<PAGE>
                       INVESTMENT OBJECTIVE AND POLICIES
 
    The investment objective of the Fund is to provide shareholders with as high
a level of income exempt from Federal income taxes as is consistent with its
investment policies and prudent investment management. The Fund seeks to achieve
its objective by investing primarily in a diversified portfolio of obligations
issued by or on behalf of states, territories and possessions of the United
States and the District of Columbia and their political subdivisions, agencies
and instrumentalities, the payments from which, in the opinion of bond counsel
to the issuer, are exempt in their entirety from Federal income taxes
("Municipal Bonds"). The Fund at all times, except during temporary defensive
periods, will maintain at least 80% of its net assets invested in Municipal
Bonds. The investment objective of the Fund as set forth in the first sentence
of this paragraph is a fundamental policy and may not be changed without
shareholder approval. At times, the Fund may seek to hedge its portfolio through
the use of futures and options transactions to reduce volatility in the net
asset value of Fund shares. Certain Federal income tax requirements may limit
the Fund's ability to engage in hedging transactions. Gains from transactions in
futures and options contracts distributed to shareholders will be taxable as
capital gains to shareholders.
 
    While there is no limit on the remaining maturity of individual Municipal
Bonds in the Fund's portfolio, depending on market conditions, an
intermediate-term dollar weighted average maturity of five to twelve years is
anticipated. Generally, as is the case with any investment grade fixed-income
obligations, Municipal Bonds with longer maturities tend to produce higher
yields. Under normal conditions, however, such yield-to-maturity increases tend
to decline in the longer maturities (i.e., the slope of the yield curve
flattens). At the same time, due to their longer exposure to interest rate risk,
prices of longer-term obligations are subject to greater market fluctuations as
a result of changes in interest rates. Based on the foregoing premises, the
Fund's manager, Merrill Lynch Asset Management, L.P. (the "Manager"), believes
that the yield and price volatility characteristics of an intermediate-term
portfolio generally offer an attractive trade-off between return and risk. There
may be market conditions, however, where an intermediate-term portfolio may be
less attractive due to the fact that the Municipal Bond yield curve changes from
time to time depending on supply and demand forces, monetary and tax policies
and investor expectations. As a result, there may be situations where
investments in individual Municipal Bonds with longer remaining maturities may
be more attractive than individual intermediate-term Municipal Bonds.
Nevertheless, the Fund anticipates maintaining a dollar weighted average
portfolio maturity of five to twelve years. In the event of any sustained market
conditions that make it less desirable to maintain such an intermediate-term
average portfolio maturity, the Trustees of the Trust may consider changing the
investment policies of the Fund with respect to average portfolio maturity.
 
    Investment in shares of the Fund offers several benefits. The Fund offers
investors the opportunity to receive income exempt from Federal income taxes by
investing in a diversified, professionally managed portfolio of Municipal Bonds.
The Fund also provides liquidity because of its redemption features and relieves
the investor of the burdensome administrative details involved in managing a
portfolio of tax-exempt securities. The benefits are at least partially offset
by the expenses involved in operating an investment company. Such expenses
primarily consist of the management fee, the account
 
                                       10
<PAGE>
maintenance and distribution fees in the case of Class B and Class C shares, the
account maintenance fee in the case of Class D shares and operational costs.
 
    The Fund ordinarily does not intend to realize investment income not exempt
from Federal income taxes. The Fund may invest in securities not issued by or on
behalf of a state or territory or by an agency or instrumentality thereof, if
the Fund nevertheless believes such securities to be exempt from Federal income
taxation ("Non-Municipal Tax-Exempt Securities"). Non-Municipal Tax-Exempt
Securities may include securities issued by other investment companies that
invest in municipal bonds, to the extent such investments are permitted by the
Investment Company Act of 1940, as amended (the "Investment Company Act"). Other
Non-Municipal Tax-Exempt Securities could include trust certificates or other
derivative instruments evidencing interests in one or more Municipal Bonds.
 
    Certain Municipal Bonds may be entitled to the benefits of letters of credit
or similar credit enhancements issued by financial institutions. In such
instances, the Trustees and the Manager will take into account in assessing the
quality of such bonds not only the creditworthiness of the issuer of such bonds
but also the creditworthiness of the financial institution. Certain instruments
in which the Fund may invest may be characterized as derivative instruments. See
"Description of Municipal Bonds" and "Financial Futures and Options
Transactions".
 
    Municipal Bonds may include several types of bonds. See "Description of
Municipal Bonds". The interest on such obligations may be payable at a fixed
rate or at a variable or floating rate. The Fund's investments may also include
variable rate demand obligations ("VRDOs") and VRDOs in the form of
participation interests ("Participating VRDOs") in variable rate tax-exempt
obligations held by a financial institution. The VRDOs in which the Fund will
invest are tax-exempt obligations which contain a floating or variable interest
rate adjustment formula and an unconditional right of demand on the part of the
holder thereof to receive payment of the unpaid principal balance plus accrued
interest on a short notice period not to exceed seven days. Participating VRDOs
provide the Fund with a specified undivided interest (up to 100%) of the
underlying obligation and the right to demand payment of the unpaid principal
balance plus accrued interest on the Participating VRDOs from the financial
institution on a specified number of days' notice, not to exceed seven days.
There is, however, the possibility that because of a default or insolvency, the
demand feature of VRDOs or Participating VRDOs may not be honored. The Fund has
been advised by its counsel that the Fund should be entitled to treat the income
received on Participating VRDOs as interest from tax-exempt obligations.
 
    VRDOs that contain an unconditional right of demand to receive payment of
the unpaid principal balance plus accrued interest on a notice period exceeding
seven days may be deemed illiquid securities. A VRDO with a demand notice period
exceeding seven days will therefore be subject to the Fund's restriction on
illiquid investments unless, in the judgment of the Trustees, such VRDO is
liquid. The Trustees may adopt guidelines and delegate to the Manager the daily
function of determining and monitoring liquidity of such VRDOs. The Trustees,
however, will retain sufficient oversight and be ultimately responsible for such
determinations.
 
    The Municipal Bonds purchased by the Fund will be what are commonly referred
to as "investment grade" securities, which are obligations rated at the time of
purchase within the four highest quality ratings as determined by either Moody's
Investors Service, Inc. ("Moody's") (currently Aaa,
 
                                       11
<PAGE>
   
Aa, A, Baa for bonds, MIG-1, MIG-2, MIG-3, MIG-4 or VMIG-1, VMIG-2, VMIG-3,
VMIG-4 for notes and P-1, P-2, P-3 for commercial paper), Standard & Poor's
Ratings Group ("Standard & Poor's") (currently AAA, AA, A, BBB for bonds, SP-1,
SP-2 for notes and A-1, A-2 for commercial paper), or Fitch Investors Service,
Inc. ("Fitch") (currently AAA, AA, A, BBB for bonds, F-1, F-2 for notes and F-1,
F-2 for commercial paper) or, if unrated, such securities will possess
creditworthiness, in the opinion of the Manager of the Fund, comparable to
obligations in which the Fund may invest. Obligations ranked in the fourth
highest rating category, while considered "investment grade", may have certain
speculative characteristics and may be more likely to be downgraded than
securities rated in one of the three highest rating categories. See the Appendix
to the Statement of Additional Information for more information regarding
ratings of debt securities. The Manager considers the ratings assigned by
Moody's, Standard & Poor's or Fitch as one of several factors in its credit
analysis of issuers. An issue of rated Municipal Bonds may cease to be rated or
its rating may be reduced below "investment grade" subsequent to its purchase by
the Fund. If an obligation in the Fund's portfolio is downgraded below
investment grade, the Manager will consider factors such as price, credit risk,
market conditions, financial condition of the issuer and interest rates and will
sell such security only if, in the Manager's judgment, it is advantageous to do
so.
    
 
    The Fund may invest up to 20% of its total assets in Municipal Bonds that
are rated below Baa by Moody's or below BBB by Standard & Poor's or Fitch, or
which, in the Manager's judgment, possess similar credit characteristics. Such
securities, sometimes referred to as "high-yield" or "junk" bonds, are
predominantly speculative with respect to the capacity to pay interest and repay
principal in accordance with the terms of the security and generally involve a
greater volatility of price than securities in higher rating categories. The
market prices of high-yielding, lower-rated securities may fluctuate more than
higher-rated securities and may decline significantly in periods of general
economic difficulty, which may follow periods of rising interest rates. In
purchasing such securities, the Fund will rely on the Manager's judgment,
analysis and experience in evaluating the creditworthiness of the issuer of such
securities. The Manager will take into consideration, among other things, the
issuer's financial resources, its sensitivity to economic conditions and trends,
its operating history, the quality of its management and regulatory matters. See
"Investment Objective and Policies" in the Statement of Additional Information
for a more detailed discussion of the pertinent risk factors involved in
investing in "high-yield" or "junk" bonds and the Appendix to the Statement of
Additional Information for additional information regarding ratings of debt
securities. The Fund does not intend to purchase debt securities that are in
default or which the Manager believes will be in default.
 
DESCRIPTION OF MUNICIPAL BONDS
 
    Municipal Bonds include debt obligations issued to obtain funds for various
public purposes, including constructing and equipping a wide range of public
facilities (including water, sewer, gas, electricity, solid waste, health care,
transportation, education and housing facilities), refunding outstanding
obligations and obtaining funds for general operating expenses and loans to
other public institutions and facilities. In addition, certain types of bonds
are issued by or on behalf of public authorities to finance various privately
operated facilities, including certain facilities for the local furnishing of
electric energy or gas, sewage facilities, solid waste disposal facilities and
other specialized facilities. For purposes of this Prospectus, such obligations
are referred to as Municipal Bonds if the
 
                                       12
<PAGE>
interest paid thereon is exempt from Federal income tax even though such bonds
may be "private activity bonds" as discussed below.
 
    The two principal classifications of Municipal Bonds are "general
obligation" bonds and "revenue" bonds, which latter category includes industrial
development bonds ("IDBs") and, for bonds issued after August 15, 1986, private
activity bonds. General obligation bonds are secured by the issuer's pledge of
its faith, credit and taxing power for the payment of principal and interest.
The taxing power of any governmental entity may be limited, however, by
provisions of state constitutions or laws, and an entity's creditworthiness will
depend on many factors, including potential erosion of the tax base due to
population declines, natural disasters, declines in the state's industrial base
or inability to attract new industries, economic limits on the ability to tax
without eroding the tax base, state legislative proposals or voter initiatives
to limit ad valorem real property taxes and the extent to which the entity
relies on Federal or state aid, access to capital markets or other factors
beyond the state or entity's control. Accordingly, the capacity of the issuer of
a general obligation bond as to the timely payment of interest and the repayment
of principal when due is affected by the issuer's maintenance of its tax base.
 
    Revenue bonds are payable only from the revenues derived from a particular
facility or class of facilities or, in some cases, from the proceeds of a
special excise tax or other specific revenue source such as payments from the
user of the facility being financed; accordingly, the timely payment of interest
and the repayment of principal in accordance with the terms of the revenue or
special obligation bond is a function of the economic viability of such facility
or such revenue source. The Fund will not invest more than 10% of its total
assets (taken at market value at the time of each investment) in industrial
revenue bonds where the entity supplying the revenues from which the issuer is
paid, including predecessors, has a record of less than three years of
continuous business operations. Investments involving entities with less than
three years of continuous business operations may pose somewhat greater risks
due to the lack of a substantial operating history for such entities. The
Manager believes, however, that the potential benefits of such investments
outweigh the potential risks, particularly given the Fund's limitations on such
investments.
 
    The Fund may purchase IDBs and private activity bonds. IDBs and private
activity bonds are tax-exempt securities issued by states, municipalities or
public authorities to provide funds, usually through a loan or lease
arrangement, to a private entity for the purpose of financing construction or
improvement of a facility to be used by the entity. Such bonds are secured
primarily by revenues derived from loan repayments or lease payments due from
the entity which may or may not be guaranteed by a parent company or otherwise
secured. Neither IDBs nor private activity bonds are secured by a pledge of the
taxing power of the issuer of such bonds. Therefore, an investor should be aware
that repayment of such bonds depends on the revenues of a private entity and be
aware of the risks that such an investment may entail. Continued ability of an
entity to generate sufficient revenues for the payment of principal and interest
on such bonds will be affected by many factors including the size of the entity,
capital structure, demand for its products or services, competition, general
economic conditions, governmental regulation and the entity's dependence on
revenues for the operation of the particular facility being financed. The Fund
may also invest in so-called "moral obligation" bonds. If an issuer of such
bonds is unable to meet its obligations, repayment of such bonds becomes a moral
commitment, but not a legal obligation, of the issuer.
 
                                       13
<PAGE>
   
    The Fund may invest in Municipal Bonds the return on which is based on a
particular index of value or interest rates. For example, the Fund may invest in
Municipal Bonds that pay interest based on an index of Municipal Bond interest
rates or based on the value of gold or some other commodity. The principal
amount payable upon maturity of certain Municipal Bonds also may be based on the
value of an index. To the extent the Fund invests in these types of Municipal
Bonds, the Fund's return on such Municipal Bonds will be subject to the risk
with respect to the value of the particular index. Interest and principal
payable on the Municipal Bonds may also be based on relative changes among
particular indices. Also, the Fund may invest in so-called "inverse floating
obligations" or "residual interest bonds" on which the interest rates typically
decline as market rates increase and increase as market rates decline. To the
extent the Fund invests in these types of Municipal Bonds, the Fund's return on
such Municipal Bonds will be subject to risk with respect to the value of the
particular index, which may include reduced or eliminated interest payments and
losses of invested principal. Such securities have the effect of providing a
degree of investment leverage, since they may increase or decrease in value in
response to changes, as an illustration, in market interest rates at a rate
which is a multiple (typically two) of the rate at which fixed-rate long-term
tax exempt securities increase or decrease in response to such changes. As a
result, the market values of such securities will generally be more volatile
than the market values of fixed-rate tax exempt securities. To seek to limit the
volatility of these securities, the Fund may purchase inverse floating
obligations with shorter term maturities or which contain limitations on the
extent to which the interest rate may vary. The Manager believes that indexed
and inverse floating obligations represent flexible portfolio management
instruments for the Fund which allows the Fund to seek potential investment
rewards, hedge other portfolio positions or vary the degree of investment
leverage relatively efficiently under different market conditions. Certain
investments in such obligations may be illiquid. The Fund may not invest in such
illiquid obligations if such investments, together with other illiquid
investments, would exceed 15% of the Fund's net assets (however, in accordance
with the provisions of certain state laws, the Fund currently will not invest in
excess of 10% of its net assets in illiquid securities).
    
 
    Also included within the general category of Municipal Bonds are
participation certificates issued by government authorities or entities to
finance the acquisition or construction of equipment, land and/or facilities.
The certificates represent participations in a lease, an installment purchase
contract or a conditional sales contract (hereinafter collectively called "lease
obligations") relating to such equipment, land and/or facilities. Although lease
obligations do not constitute general obligations of the issuer for which the
lessee's unlimited taxing power is pledged, a lease obligation frequently is
backed by the lessee's covenant to budget for, appropriate and make the payments
due under the lease obligation. However, certain lease obligations contain
"non-appropriation" clauses which provide that the lessee has no obligation to
make lease or installment purchase payments in future years unless money is
appropriated for such purpose on a yearly basis. Although "non-appropriation"
lease obligations are secured by the leased property, disposition of the
property in the event of foreclosure might prove difficult. These securities
represent a type of financing that has not yet developed the depth of
marketability associated with more conventional securities. Certain investments
in lease obligations may be illiquid. The Fund may not invest in illiquid lease
obligations if such investments, together with all other illiquid investments,
would exceed 15% of the Fund's net assets. The Fund, however, may invest without
regard to such limitation in lease obligations which the Manager, pursuant to
guidelines which have been adopted by the Board of Trustees and subject to the
supervision of the Board,
 
                                       14
<PAGE>
determines to be liquid. The Manager will deem lease obligations liquid if they
are publicly offered and have received an investment grade rating of Baa or
better by Moody's, or BBB or better by Standard & Poor's or Fitch. Unrated lease
obligations, or those rated below investment grade, will be considered liquid if
the obligations come to the market through an underwritten public offering and
at least two dealers are willing to give competitive bids. In reference to the
latter, the Manager, among other things, also must review the creditworthiness
of the municipality obligated to make payment under the lease obligation and
make certain specified determinations based on such factors as the existence of
a rating or credit enhancement such as insurance, the frequency of trades or
quotes for the obligation and the willingness of dealers to make a market in the
obligation.
 
    The Fund ordinarily does not intend to realize investment income not exempt
from Federal income taxes. For temporary periods or to provide liquidity, the
Fund has the authority to invest as much as 20% of its total assets in taxable
money market obligations with maturities of one year or less (such short-term
obligations being referred to hereinafter as "Temporary Investments"). The
Temporary Investments, VRDOs and Participating VRDOs in which the Fund may
invest also will be in the following rating categories at the time of purchase:
MIG-1/VMIG-1 through MIG-4/VMIG-4 for notes and VRDOs and Prime-1 through
Prime-3 for commercial paper (as determined by Moody's), SP-1 and SP-2 for notes
and A-1 through A-3 for VRDOs and commercial paper (as determined by Standard &
Poor's), or F-1 through F-3 for notes, VRDOs and commercial paper (as determined
by Fitch) or, if unrated, of comparable quality in the opinion of the Manager.
The Fund may invest in certain tax-exempt securities which are classified as
"private activity bonds" (in general, bonds that benefit non-governmental
entities) and which may subject certain investors to a Federal alternative
minimum tax. The percentage of the Fund's net assets invested in "private
activity bonds" will vary during the year. See "Distributions and Taxes". In
addition, the Fund reserves the right as a defensive measure to invest
temporarily a greater portion of its assets in Temporary Investments, when, in
the opinion of the Manager, prevailing market or financial conditions warrant.
The investment objective and policies of the Fund set forth in the first three
sentences of the first paragraph of this section and the policies set forth in
this paragraph are fundamental policies of the Fund which may not be changed
without a vote of a majority of the outstanding shares of the Fund. The
investment policies with respect to the maturities of portfolio investments and
the hedging strategies of the Fund, which are described in more detail under
"Financial Futures and Options Transactions", are not fundamental policies and
may be modified by the Trustees of the Trust without the approval of the Fund's
shareholders.
 
    Federal tax legislation has limited the types and volume of bonds the
interest on which qualifies for a Federal income tax exemption. As a result,
this legislation and legislation which may be enacted in the future may affect
the availability of Municipal Bonds for investment by the Fund.
 
WHEN-ISSUED SECURITIES AND DELAYED DELIVERY TRANSACTIONS
 
    The Fund may purchase or sell Municipal Bonds on a delayed delivery basis or
on a when-issued basis at fixed purchase or sale terms. These transactions arise
when securities are purchased or sold by the Fund with payment and delivery
taking place in the future. The purchase will be recorded on the date the Fund
enters into the commitment and the value of the obligation will be reflected
thereafter in the calculation of the Fund's net asset value. The value of the
obligation on the delivery date may be more or less than its purchase price. A
separate account of the Fund will be established with its
 
                                       15
<PAGE>
custodian consisting of cash, cash equivalents or liquid Municipal Bonds having
a market value at all times at least equal to the amount of the forward
commitment.
 
CALL RIGHTS
 
    The Fund may purchase a Municipal Bond issuer's right to call all or a
portion of such Municipal Bond for mandatory tender for purchase (a "Call
Right"). A holder of a Call Right may exercise such right to require a mandatory
tender for the purchase of related Municipal Bonds, subject to certain
conditions. A Call Right that is not exercised prior to the maturity of the
related Municipal Bond will expire without value.
 
    The economic effect of holding both the Call Right and the related Municipal
Bond is identical to holding a Municipal Bond as a non-callable security.
Certain investments in such obligations may be illiquid. The Fund may not invest
in such illiquid obligations if such investments, together with other illiquid
investments, would exceed 15% of the Fund's net assets.
 
REPURCHASE AGREEMENTS
 
    As Temporary Investments, the Fund may invest in securities pursuant to
repurchase agreements. Repurchase agreements may be entered into only with a
member bank of the Federal Reserve System or primary dealer or an affiliate
thereof in U.S. Government securities. Under such agreements, the bank or
primary dealer or an affiliate thereof agrees, upon entering into the contract,
to repurchase the security at a mutually agreed upon time and price, thereby
determining the yield during the term of the agreement. This results in a fixed
rate of return insulated from market fluctuations during such period. In the
case of repurchase agreements, the prices at which the trades are conducted do
not reflect accrued interest on the underlying obligations. Such agreements
usually cover short periods, such as under one week. Repurchase agreements may
be construed to be collateralized loans by the purchaser to the seller secured
by the securities transferred to the purchaser. In the case of a repurchase
agreement, the Fund will require the seller to provide additional collateral if
the market value of the securities falls below the repurchase price at any time
during the term of the repurchase agreement. In the event of default by the
seller under the repurchase agreement construed to be a collateralized loan, the
underlying securities are not owned by the Fund but only constitute collateral
for the seller's obligation to pay the repurchase price. Therefore, the Fund may
suffer time delays and incur costs or possible losses in connection with the
disposition of the collateral. In the event of a default under such a repurchase
agreement, instead of the contractual fixed rate of return, the rate of return
to the Fund shall be dependent upon intervening fluctuations of the market value
of such security and the accrued interst on the security. In such event, the
Fund would have rights against the seller for breach of contract with respect to
any losses arising from market fluctuations following the failure of the seller
to perform. The Fund may not invest in repurchase agreements maturing in more
than seven days if such investments, together with all other illiquid
investments, would exceed 15% of the Fund's net assets.
 
                                       16
<PAGE>
FINANCIAL FUTURES AND OPTIONS TRANSACTIONS
 
    The Fund is authorized to purchase and sell certain exchange-traded
financial futures contracts ("financial futures contracts") and options thereon
solely for the purposes of hedging its investments in Municipal Bonds against
declines in value and hedging against increases in the cost of securities it
intends to purchase. However, any transactions involving financial futures
contracts or options thereon (including puts and calls associated therewith)
will be in accordance with the Fund's investment policies and limitations. A
financial futures contract obligates the seller of a contract to deliver and the
purchaser of a contract to take delivery of the type of financial instrument
covered by the contract, or in the case of index-based financial futures
contracts to make and accept a cash settlement at a specific future time for a
specified price. A sale of financial futures contracts may provide a hedge
against a decline in the value of portfolio securities because such depreciation
may be offset, in whole or in part, by an increase in the value of the position
in the financial futures contracts. A purchase of financial futures contracts
may provide a hedge against an increase in the cost of securities intended to be
purchased, because such appreciation may be offset, in whole or in part, by an
increase in the value of the position in the financial futures contracts.
Distributions, if any, of net long-term capital gains from certain transactions
in futures or options are taxable at long-term capital gains rates for Federal
income tax purposes, regardless of the length of time the shareholder has owned
Fund shares. See "Distributions and Taxes--Taxes".
 
    The Fund deals in financial futures contracts traded on the Chicago Board of
Trade based on The Bond Buyer Municipal Bond Index, a price-weighted measure of
the market value of 40 large, recently issued tax-exempt bonds. There can be no
assurance, however, that a liquid secondary market will exist to terminate any
particular financial futures contract at any specific time. If it is not
possible to close a financial futures contract position entered into by the
Fund, the Fund would continue to be required to make daily cash payments of
variation margin in the event of adverse price movements. In such a situation,
if the Fund has insufficient cash, it may have to sell portfolio securities to
meet daily variation margin requirements at a time when it may be
disadvantageous to do so. The inability to close financial futures contract
positions also could have an adverse impact on the Fund's ability to hedge
effectively. There is also the risk of loss by the Fund of margin deposits in
the event of bankruptcy of a broker with whom the Fund has an open position in a
financial futures contract. The Fund also may purchase and sell financial
futures contracts on U.S. Government securities and write and purchase put and
call options on such financial futures contracts as a hedge against adverse
changes in interest rates as described more fully in the Statement of Additional
Information. With respect to U.S. Government securities, currently there are
financial futures contracts based on long-term U.S. Treasury bonds, U.S.
Treasury notes, Government National Mortgage Association ("GNMA") Certificates
and three-month U.S. Treasury bills.
 
    Subject to policies adopted by the Trustees, the Fund also may engage in
other financial futures contracts transactions, such as financial futures
contracts (and options thereon) on other municipal bond indexes which may become
available if the Manager and the Trustees of the Trust should
 
                                       17
<PAGE>
determine that there is normally a sufficient correlation between the prices of
such futures contracts and the Municipal Bonds in which the Fund invests to make
such hedging appropriate.
 
    Utilization of futures and options transactions involves the risk of
imperfect correlation in movements in the price of futures contracts or the
related options and movements in the price of the security which is the subject
of the hedge. If the price of the futures contract or the related option moves
more or less than the price of the security that is the subject of the hedge,
the Fund will experience a gain or loss which will not be completely offset by
movements in the price of such security. There is a risk of imperfect
correlation where the securities underlying futures contracts or the related
options have different maturities, ratings or geographic mixes than the security
being hedged. In addition, the correlation may be affected by additions to or
deletions from the index which serves as a basis for a financial futures
contract or the related option. Also, in the case of The Bond Buyer Municipal
Bond Index, the underlying bonds must have a remaining maturity of 19 years or
more, while the Fund will maintain an intermediate-term maturity portfolio,
which may reduce the correlation. Finally, in the case of financial futures
contracts on U.S. Government securities and options on such financial futures
contracts, the anticipated correlation of price movements between the U.S.
Government securities underlying the futures or options and Municipal Bonds may
be adversely affected by economic, political, legislative or other developments
which have a disparate impact on the respective markets for such securities.
 
    Under regulations of the Commodity Futures Trading Commission, the futures
trading activities described herein will not result in the Fund being deemed to
be a "commodity pool", as defined under such regulations, provided that the Fund
adheres to certain restrictions. In particular, the Fund may purchase and sell
financial futures contracts and options thereon (i) for bona fide hedging
purposes and (ii) for non-hedging purposes, if the aggregate initial margins and
premiums required to establish positions in such contracts and options do not
exceed 5% of the liquidation value of the Fund's portfolio assets after taking
into account unrealized profits and unrealized losses on any such contracts or
options. (However, as stated above, the Fund intends to engage in futures and
options transactions only for hedging purposes.) Margin deposits may consist of
cash or securities acceptable to the broker and the relevant contract market.
 
    When the Fund purchases a financial futures contract, or writes a put option
or purchases a call option thereon, it will maintain an amount of cash, cash
equivalents (e.g., commercial paper and daily tender adjustable notes) or
short-term high-grade fixed-income securities in a segregated account with the
Fund's custodian, so that the amount so segregated plus the amount of initial
and variation margin held in the account of its broker equals the market value
of the financial futures contract, thereby ensuring that the use of such
financial futures contract or option thereon is unleveraged. It is not
anticipated that transactions in financial futures contracts or options thereon
will have the effect of increasing portfolio turnover.
 
    Although certain risks are involved in futures and options transactions, the
Manager believes that, because the Fund will engage in futures and options
transactions only for hedging purposes, the futures
 
                                       18
<PAGE>
portfolio strategies of the Fund will not subject the Fund to certain risks
frequently associated with speculation in futures and options transactions. The
Fund must meet certain Federal income tax requirements under the Internal
Revenue Code of 1986, as amended (the "Code"), in order to qualify for the
special tax treatment afforded regulated investment companies, including a
requirement that less than 30% of its gross income be derived from the sale or
other disposition of securities held for less than three months. Additionally,
the Fund is required to meet certain diversification requirements under the
Code.
 
    The liquidity of a secondary market in a financial futures contract may be
adversely affected by "daily price fluctuation limits" established by commodity
exchanges which limit the amount of fluctuation in a financial futures contract
price during a single trading day. Once the daily limit has been reached in the
contract, no trades may be entered into at a price beyond the limit, thus
preventing the liquidation of open futures positions. Prices in the past have
reached or exceeded the daily limit on a number of consecutive trading days.
 
    The successful use of futures and options transactions also depends on the
ability of the Manager to forecast correctly the direction and extent of
interest rate movements within a given time frame. To the extent these rates
remain stable during the period in which a financial futures contract or option
thereon is held by the Fund or moves in a direction opposite to that
anticipated, the Fund may realize a loss on the hedging transaction which is not
fully or partially offset by an increase in the value of portfolio securities.
As a result, the Fund's total return for such period may be less than if it had
not engaged in the hedging transaction. Furthermore, the Fund only will engage
in hedging activities from time to time and may not necessarily be engaging in
hedging activities when movements in interest rates occur.
 
    Although it has no present intention to do so, the Fund reserves the
authority, subject to the approval of the Trustees, to purchase and sell options
on Municipal Bonds in which it may invest as an additional means of hedging its
portfolio. Because these options transactions involve certain considerations in
addition to those discussed above, the Fund will not enter into any such options
transactions without making appropriate disclosure with respect thereto in the
currently effective prospectus and statement of additional information of the
Fund.
 
    Reference is made to the Statement of Additional Information for further
information on financial futures contracts and certain options thereon.
 
INVESTMENT RESTRICTIONS
 
   
    The Trust has adopted a number of restrictions and policies relating to the
investment of the Fund's assets and its activities, which are fundamental
policies of the Fund and may not be changed without the approval of the holders
of a majority of the Fund's outstanding voting securities, as defined in the
Investment Company Act. Among the more significant restrictions, the Fund may
not borrow amounts in excess of 33 1/3% of its total assets taken at market
value (including the amount borrowed), and an additional 5% of its total assets
for temporary purposes.
    
 
   
    Investors are referred to the Statement of Additional Information for a
complete description of such restrictions and policies.
    
 
                                       19
<PAGE>
                            MANAGEMENT OF THE TRUST
 
TRUSTEES
 
   
    The Trustees of the Trust consist of six individuals, five of whom are not
"interested persons" of the Trust as defined in the Investment Company Act. The
Trustees are responsible for the overall supervision of the operations of the
Trust and the Fund and perform the various duties imposed on the directors of
investment companies by the Investment Company Act.
    
 
    The Trustees are:
 
   
    ARTHUR ZEIKEL*--President and Chief Investment Officer of the Manager and
FAM; Executive Vice President of ML & Co.; Executive Vice President of Merrill
Lynch; President and Director of Princeton Services, Inc. ("Princeton
Services"); and Director of the Distributor.
    
 
    RONALD W. FORBES--Professor of Finance, School of Business, State University
of New York at Albany.
 
    CYNTHIA A. MONTGOMERY--Professor of Finance, Harvard Business School.
 
    CHARLES C. REILLY--Self-employed financial consultant; former President and
Chief Investment Officer of Verus Capital, Inc.; former Senior Vice President of
Arnhold and S. Bleichroeder, Inc.; and Adjunct Professor, Columbia University
Graduate School of Business.
 
    KEVIN A. RYAN--Professor of Education, Boston University; Founder and
current Director of the Boston University Center for the Advancement of Ethics
and Character.
 
    RICHARD R. WEST--Professor of Finance and former Dean, New York University
Leonard N. Stern School of Business Administration.
 
- ------------
 
*  Interested person, as defined in the Investment Company Act, of the Trust.
 
MANAGEMENT AND ADVISORY ARRANGEMENTS
 
   
    The Manager, which is owned and controlled by ML & Co., a financial services
holding company and the parent of Merrill Lynch, acts as the manager for the
Fund and provides the Fund with management and investment advisory services. The
Manager or FAM acts as the investment adviser to more than 130 registered
investment companies. The Manager also provides investment advisory services to
individuals and institutional accounts. As of January 31, 1995, the Manager and
FAM had a total of approximately $166.5 billion in investment company and other
portfolio assets under management, including accounts of certain affiliates of
the Manager.
    
 
    The management agreement with the Manager (the "Management Agreement")
provides that, subject to the direction of the Trustees of the Trust, the
Manager is responsible for the actual management of the Fund's portfolio and
constantly reviews the Fund's holdings in light of its own research analysis and
that from other relevant sources. The responsibility for making decisions to
buy, sell or hold a particular security rests with the Manager, subject to
review by the Trustees. The
 
                                       20
<PAGE>
Manager provides the portfolio manager for the Fund who considers analyses from
various sources (including brokerage firms with which the Fund does business),
makes the necessary decisions and places transactions accordingly. The Manager
also is obligated to provide administrative services necessary for the operation
of the Trust and the Fund and all of the office space, facilities, equipment and
necessary personnel for management of the Trust and the Fund.
 
   
    As compensation for its services, the Manager receives from the Fund at the
end of each month a fee at the annual rate of 0.55% of the average daily net
assets of the Fund. For the year ended October 31, 1994, the fee paid by the
Fund to the Manager was $999,575 (based on average net assets of approximately
$181.8 million). At January 31, 1995, the net assets of the Fund aggregated
approximately $157.7 million. At this asset level, the annual management fee
would aggregate approximately $867,512.
    
 
   
    The Management Agreement obligates the Trust to pay certain expenses
incurred in the Fund's operations including, among other things, the management
fee, legal and audit fees, registration fees, unaffiliated Trustees' fees and
expenses, custodian and transfer agency fees, accounting costs, the costs of
issuing and redeeming shares and certain of the costs of printing proxies,
shareholder reports, prospectuses and statements of additional information
distributed to shareholders. Accounting services are provided to the Trust by
the Manager and the Trust reimburses the Manager for its costs in connection
with such services. For the year ended October 31, 1994, the Trust reimbursed
the Manager $58,282 for accounting services.
    
 
   
    For the year ended October 31, 1994, for the Class A shares, the ratio of
total expenses to average net assets was 0.76%; for the Class B shares, the
ratio of total expenses excluding distribution fees to average net assets was
0.77% and the ratio of total expenses including distribution fees to average net
assets was 1.07%; for the Class C shares, the annualized ratio of total expenses
excluding distribution fees to average net assets was 0.88% and the annualized
ratio of total expenses including distribution fees to average net assets was
1.18%; for the Class D shares, the annualized ratio of total expenses excluding
distribution fees to average net assets was 0.87% and the annualized ratio of
total expenses including distribution fees to average net assets was 0.97%.
    
 
   
    Vincent R. Giordano and Kenneth A. Jacob are the Portfolio Managers for the
Fund. Vincent R. Giordano has been a portfolio manager of the Manager and FAM
since 1977 and Senior Vice President of the Manager and FAM since 1984. Kenneth
A. Jacob has been a Vice President of the Manager since 1984.
    
 
   
CODE OF ETHICS
    
 
   
    The Board of Trustees of the Trust has adopted a Code of Ethics under Rule
17j-1 of the Investment Company Act which incorporates the Code of Ethics of the
Manager (together, the "Codes"). The Codes significantly restrict the personal
investing activities of all employees of the Manager and, as described below,
impose additional, more onerous, restrictions on fund investment personnel.
    
 
   
    The Codes require that all employees of the Manager preclear any personal
securities investment (with limited exceptions, such as government securities).
The preclearance requirement and associated
    
 
                                       21
<PAGE>
   
procedures are designed to identify any substantive prohibition or limitation
applicable to the proposed investment. The substantive restrictions applicable
to all employees of the Manager include a ban on acquiring any securities in a
"hot" initial public offering and a prohibition from profiting on short-term
trading in securities. In addition, no employee may purchase or sell any
security which at the time is being purchased or sold (as the case may be), or
to the knowledge of the employee is being considered for purchase or sale, by
any fund advised by the Manager. Furthermore, the Codes provide for trading
"blackout periods" which prohibit trading by investment personnel of the Fund
within periods of trading by the Fund in the same (or equivalent) security (15
to 30 days depending upon the transaction).
    
 
TRANSFER AGENCY SERVICES
 
   
    Financial Data Services, Inc. (the "Transfer Agent"), which is a
wholly-owned subsidiary of ML & Co., acts as the Trust's transfer agent pursuant
to a transfer agency, dividend disbursing agency and shareholder servicing
agency agreement (the "Transfer Agency Agreement"). Pursuant to the Transfer
Agency Agreement, the Transfer Agent is responsible for the issuance, transfer
and redemption of shares and the opening and maintenance of shareholder
accounts. Pursuant to the Transfer Agency Agreement, the Transfer Agent receives
a fee of $11.00 per Class A or Class D shareholder account and $14.00 per Class
B or Class C shareholder account and is entitled to reimbursement for
out-of-pocket expenses incurred by it under the Transfer Agency Agreement. For
the year ended October 31, 1994, the total fee paid by the Fund to the Transfer
Agent, for the Class A and B shares, pursuant to the Transfer Agency Agreement
was $11,218 and $65,195, respectively. At January 31, 1995, the Fund had 565
Class A shareholder accounts, 4,180 Class B shareholder accounts, 4 Class C
shareholder accounts and 28 Class D shareholder accounts. At this level of
accounts, the annual fee payable to the Transfer Agent would aggregate
approximately $65,099 plus out-of-pocket expenses.
    
 
                               PURCHASE OF SHARES
 
    Merrill Lynch Funds Distributor, Inc. (the "Distributor"), an affiliate of
both the Manager and Merrill Lynch, acts as the distributor of the shares of the
Fund. Shares of the Fund are offered continuously for sale by the Distributor
and other eligible securities dealers (including Merrill Lynch). Class A, Class
B and Class D shares of the Fund may be purchased from securities dealers or by
mailing a purchase order directly to the Transfer Agent. The minimum initial
purchase is $1,000 and the minimum subsequent purchase is $50. Class C shares of
the Fund are not available for purchase but will be issued only pursuant to the
exchange privilege to holders of Class C shares of other MLAM-advised mutual
funds who elect to exchange Class C shares of such other MLAM-advised mutual
funds for Class C shares of the Fund.
 
   
    The Fund is offering its Class A, Class B and Class D shares at a public
offering price equal to the next determined net asset value per share plus sales
charges imposed either at the time of purchase or on a deferred basis depending
upon the class of shares selected by the investor under the Merrill Lynch Select
PricingSM System, as described below. The applicable offering price for purchase
orders is based upon the net asset value of the Fund next determined after
receipt of the purchase order by the Distributor. As to purchase orders received
by securities dealers prior to the close of business on the
    
 
                                       22
<PAGE>
   
New York Stock Exchange (generally, 4:00 P.M., New York time), which includes
orders received after the close of business on the previous day, the applicable
offering price will be based on the net asset value determined 15 minutes after
the close of business on the New York Stock Exchange on the day the order is
placed with the Distributor, provided the order is received by the Distributor
prior to 30 minutes after the close of business on the New York Stock Exchange
on that day. If the purchase orders are not received prior to 30 minutes after
the close of business on the New York Stock Exchange, such orders shall be
deemed received on the next business day. The Fund or the Distributor may
suspend the continuous offering of the Fund's shares of any class at any time in
response to conditions in the securities markets or otherwise and thereafter may
resume such offering from time to time. Any order may be rejected by the
Distributor or the Fund. Neither the Distributor nor the dealers are permitted
to withhold placing orders to benefit themselves by a price change. Merrill
Lynch may charge its customers a processing fee (presently $4.85) to confirm a
sale of shares to such customers. Purchases directly through the Fund's Transfer
Agent are not subject to the processing fee.
    
 
    The Fund issues four classes of shares under the Merrill Lynch Select
PricingSM System, which permits each 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 Class A and Class D are sold to investors
choosing the initial sales charge alternatives, and shares of Class B are sold
to investors choosing the deferred sales charge alternative. Investors should
determine whether under their particular circumstances it is more advantageous
to incur an initial sales charge or to have the entire initial purchase price
invested in the Fund with the investment thereafter being subject to a
contingent deferred sales charge and ongoing distribution fees. A discussion of
the factors that investors should consider in determining the method of
purchasing shares under the Merrill Lynch Select PricingSM System is set forth
under "Merrill Lynch Select PricingSM System" on page 3.
 
    Each Class A, Class B, Class C and Class D share of the Fund represents
identical interests in the investment portfolio of the Fund and has the same
rights, except that Class B, Class C and Class D shares bear the expenses of the
ongoing account maintenance fees, and Class B and Class C shares bear the
expenses of the ongoing distribution fees and the additional incremental
transfer agency costs resulting from the deferred sales charge arrangements. The
deferred sales charges and account maintenance fees that are imposed on Class B
and Class C shares, as well as the account maintenance fees that are imposed on
Class D shares, will be imposed directly against those classes and not against
all assets of the Fund and, accordingly, such charges will not affect the net
asset value of any other class or have any impact on investors choosing another
sales charge option. Dividends paid by the Fund for each class of shares will be
calculated in the same manner at the same time and will differ only to the
extent that account maintenance and distribution fees and any incremental
transfer agency costs relating to a particular class are borne exclusively by
that class. Class B, Class C and Class D shares each have exclusive voting
rights with respect to the Rule 12b-1 distribution plan adopted with respect to
such class pursuant to which account maintenance and/or distribution fees are
paid. See "Distribution Plans" below. Each class has different exchange
privileges. See "Shareholder Services--Exchange Privilege".
 
    Investors should understand that the purpose and function of the initial
sales charges with respect to Class A and Class D shares are the same as those
of the deferred sales charges with respect to Class B
 
                                       23
<PAGE>
and Class C shares in that the sales charges applicable to each class provide
for the financing of the distribution of the shares of the Fund. The
distribution-related revenues paid with respect to a class will not be used to
finance the distribution expenditures of another class. Sales personnel may
receive different compensation for selling different classes of shares.
Investors are advised that only Class A and Class D shares may be available for
purchase through securities dealers, other than Merrill Lynch, which are
eligible to sell shares.
 
    The following table sets forth a summary of the distribution arrangements
for each class of shares under the Merrill Lynch Select PricingSM System.
 
<TABLE>
<CAPTION>
                                          ACCOUNT
                                        MAINTENANCE    DISTRIBUTION
CLASS         SALES CHARGE(1)               FEE            FEE                CONVERSION FEATURE
<C>    <S>                              <C>            <C>             <C>
 A     Maximum 1.0% initial sales          No             No                          No
         charge(2)(3)
 B     1.0% CDSC for one year              0.20%           0.10%       B shares convert to D shares
                                                                       automatically after
                                                                       approximately ten years(4)
C(5)   1.0% CDSC for one year              0.20%           0.10%                      No
 D     Maximum 1.0% initial sales          0.10%          No                          No
         charge(3)
</TABLE>
 
- ------------
 
   
(1) Initial sales charges are imposed at the time of purchase as a percentage of
    the offering price. CDSCs may be imposed if the redemption occurs within the
    applicable CDSC time period. The charge will be assessed on an amount equal
    to the lesser of the proceeds of redemption or the cost of the shares being
    redeemed.
    
 
(2) Offered only to eligible investors. See "Initial Sales Charge
    Alternatives--Class A and Class D Shares--Eligible Class A Investors".
 
(3) Reduced for purchases of $100,000 or more. Class A and Class D share
    purchases of $1,000,000 or more may not be subject to an initial sales
    charge but instead will be subject to a 0.20% CDSC for one year.
 
(4) The conversion period for dividend reinvestment shares is modified. Also,
    Class B shares of certain other MLAM-advised mutual funds into which
    exchanges may be made have an eight year conversion period. If Class B
    shares of the Fund are exchanged for Class B shares of another MLAM-advised
    mutual fund, the conversion period applicable to the Class B shares acquired
    in the exchange will apply, and the holding period for the shares exchanged
    will be tacked onto the holding period for the shares acquired.
 
(5) Class C shares will be issued only upon exchange for Class C shares of
    another MLAM-advised mutual fund. See "Shareholder Services--Exchange
    Privilege".
 
INITIAL SALES CHARGE ALTERNATIVES--CLASS A AND CLASS D SHARES
 
    Investors choosing the initial sales charge alternatives who are eligible to
purchase Class A shares should purchase Class A shares rather than Class D
shares because there is an account maintenance fee imposed on Class D shares.
 
                                       24
<PAGE>
    The public offering price of Class A and Class D shares for purchasers
choosing the initial sales charge alternatives is the next determined net asset
value plus varying sales charges (i.e., sales loads), as set forth below.
 
   
<TABLE>
<CAPTION>
                                                                        SALES LOAD AS      DISCOUNT TO
                                                       SALES LOAD AS     PERCENTAGE*     SELECTED DEALERS
                                                       PERCENTAGE OF     OF THE NET       AS PERCENTAGE
                                                         OFFERING          AMOUNT        OF THE OFFERING
AMOUNT OF PURCHASE                                         PRICE          INVESTED            PRICE
- ----------------------------------------------------   -------------    -------------    ----------------
<S>                                                    <C>              <C>              <C>
Less than $100,000..................................        1.00%            1.01%              0.95%
$100,000 but less than $250,000.....................        0.75             0.76               0.70
$250,000 but less than $500,000.....................        0.50             0.50               0.45
$500,000 but less than $1,000,000...................        0.30             0.30               0.27
$1,000,000 and over**...............................        0.00             0.00               0.00
</TABLE>
    
 
- ------------
 
 * Rounded to the nearest one-hundredth percent.
 
   
** The initial sales charge may be waived on Class A and Class D purchases of
   $1,000,000 or more made on or after October 21, 1994 (the date Class D shares
   were initially offered to the public). If the sales charge is waived, such
   purchases will be subject to a CDSC of 0.20% if the shares are redeemed
   within one year after purchase. Class A purchases made prior to October 21,
   1994 may be subject to a CDSC if the shares are redeemed within one year of
   purchase at the following rates: 0.75% on purchases of $1,000,000 to
   $2,500,000; 0.40% on purchases of $2,500,001 to $3,500,000; 0.25% on
   purchases of $3,500,001 to $5,000,000; and 0.20% on purchases of more than
   $5,000,000, in lieu of paying an initial sales charge. The charge will be
   assessed on an amount equal to the lesser of the proceeds of redemption or
   the cost of the shares being redeemed.
    
 
   
    The Distributor may reallow discounts to selected dealers and retain the
balance over such discounts. At times the Distributor may reallow the entire
sales charge to such dealers. Since securities dealers selling Class A and Class
D shares of the Fund will receive a concession equal to most of the sales
charge, they may be deemed to be underwriters under the Securities Act. During
the fiscal year ended October 31, 1994, the Fund sold 1,950,875 Class A shares
for aggregate net proceeds of $19,905,075. The gross sales charges for the sale
of Class A shares of the Fund for that year were $131,803, of which $7,395 and
$124,408 were received by the Distributor and Merrill Lynch, respectively. For
the fiscal year ended October 31, 1994, the Distributor received CDSCs of
$10,543 with respect to redemptions of Class A shares, all of which were paid to
Merrill Lynch. During the fiscal year ended October 31, 1994, the Fund sold
7,265 Class D shares for aggregate net proceeds of $70,467. The Distributor and
Merrill Lynch did not receive any gross sales charges for the sale of Class D
shares of the Fund for that year. For the fiscal year ended October 31, 1994, no
Class D CDSCs were received by the Distributor and Merrill Lynch.
    
 
    Eligible Class A Investors. Class A shares are offered to a limited group of
investors and also will be issued upon reinvestment of dividends on outstanding
Class A shares. Investors that currently own Class A shares in a shareholder
account are entitled to purchase additional Class A shares in that account.
Class A shares are available at net asset value to corporate warranty insurance
reserve fund programs provided that the program has $3 million or more initially
invested in MLAM-advised mutual funds. Also eligible to purchase Class A shares
at net asset value are participants in certain investment programs including
TMASM Managed Trusts to which Merrill Lynch Trust Company provides
 
                                       25
<PAGE>
   
discretionary trustee services and certain purchases made in connection with the
Merrill Lynch Mutual Fund Adviser program. In addition, Class A shares are
offered at net asset value to ML & Co. and its subsidiaries and their directors
and employees and to members of the boards of MLAM-advised investment companies,
including the Fund. Certain persons who acquired shares of certain MLAM-advised
closed-end funds who wish to reinvest the net proceeds from a sale of their
closed-end fund shares of common stock in shares of the Fund also may purchase
Class A shares of the Fund if certain conditions set forth in the Statement of
Additional Information are met. For example, Class A shares of the Fund and
certain other MLAM-advised mutual funds are offered at net asset value to
shareholders of Merrill Lynch Senior Floating Rate Fund, Inc. who wish to
reinvest the net proceeds from a sale of certain of their shares of common stock
of Merrill Lynch Senior Floating Rate Fund, Inc. in shares of such funds.
    
 
    Reduced Initial Sales Charges. No initial sales charges are imposed upon
Class A and Class D shares issued as a result of the automatic reinvestment of
dividends or capital gains distributions. Class A and Class D sales charges also
may be reduced under a Right of Accumulation and a Letter of Intention.
 
    Class A shares are offered at net asset value to certain eligible Class A
investors as set forth above under "Eligible Class A Investors".
 
   
    Class D shares are offered at net asset value to an investor who has a
business relationship with a financial consultant who joined Merrill Lynch from
another investment firm within six months prior to the date of purchase if
certain conditions set forth in the Statement of Additional Information are met.
Class D shares may be offered at net asset value in connection with the
acquisition of assets of other investment companies. Class D shares also are
offered at net asset value, without sales charge, to an investor who has a
business relationship with a Merrill Lynch financial consultant and who has (i)
invested in a mutual fund sponsored by a non-Merrill Lynch company for which
Merrill Lynch has served as a selected dealer and where Merrill Lynch has either
received or given notice that such arrangement will be terminated or (ii)
invested in a mutual fund sponsored by a non-Merrill Lynch company for which
Merrill Lynch has not served as a selected dealer, if certain conditions set
forth in the Statement of Additional Information are met.
    
 
    Class D shares are offered with reduced sales charges and, in certain
circumstances, at net asset value, to participants in the Merrill Lynch
BlueprintSM Program.
 
    Additional information concerning these reduced initial sales charges is set
forth in the Statement of Additional Information.
 
DEFERRED SALES CHARGE ALTERNATIVE--CLASS B SHARES
 
    The public offering price of Class B shares for investors choosing the
deferred sales charge alternative is the next determined net asset value per
share without the imposition of a sales charge at the time of purchase. Class C
shares of the Fund are not available for purchase but will be issued only
pursuant to the exchange privilege to holders of Class C shares of other
MLAM-advised mutual funds who elect to exchange Class C shares of such other
MLAM-advised mutual funds for Class C shares of the Fund. As discussed below,
Class B and Class C shares are subject to a one year 1.0% CDSC.
 
                                       26
<PAGE>
Approximately ten years after Class B shares are issued, such Class B shares,
together with shares issued upon dividend reinvestment with respect to those
shares, are automatically converted into Class D shares of the Fund and
thereafter will be subject to lower continuing fees. See "Conversion of Class B
Shares to Class D Shares" below. Both Class B and Class C shares are subject to
an account maintenance fee of 0.20% of net assets and a distribution fee of
0.10% of net assets as discussed below under "Distribution Plans". The proceeds
from the account maintenance fees are used to compensate Merrill Lynch for
providing continuing account maintenance activities.
 
    Class B shares are sold without an initial sales charge so that the Fund
will receive the full amount of the investor's purchase payment. Merrill Lynch
compensates its financial consultants for selling Class B and Class C shares of
MLAM-advised mutual funds at the time of purchase from its own funds. See
"Distribution Plans" below.
 
   
    Proceeds from the CDSC and the distribution fee are paid to the Distributor
and are used in whole or in part by the Distributor to defray the expenses of
dealers (including Merrill Lynch) related to providing distribution-related
services to the Fund in connection with the sale of the Class B and Class C
shares, such as the payment of compensation to financial consultants for selling
Class B and Class C shares from the dealer's own funds. The combination of the
CDSC and the ongoing distribution fee facilitates the ability of the Fund to
sell the Class B shares without a sales charge being deducted at the time of
purchase. Approximately ten years after issuance, Class B shares will convert
automatically into Class D shares of the Fund, which are subject to a lower
account maintenance fee and no distribution fee; Class B shares of certain other
MLAM-advised mutual funds into which exchanges may be made convert into Class D
shares automatically after approximately eight years. If Class B shares of the
Fund are exchanged for Class B shares of another MLAM-advised mutual fund, the
conversion period applicable to the Class B shares acquired in the exchange will
apply, and the holding period for the shares exchanged will be tacked onto the
holding period for the shares acquired.
    
 
    Imposition of the CDSC and the distribution fee on Class B and Class C
shares is limited by the NASD asset-based sales charge rule. See "Limitations on
the Payment of Deferred Sales Charges" below. The proceeds from the ongoing
account maintenance fee are used to compensate Merrill Lynch for providing
continuing account maintenance activities. Class B shareholders of the Fund
exercising the exchange privilege described under "Shareholder
Services--Exchange Privilege" will continue to be subject to the Fund's CDSC
schedule if such schedule is higher than the CDSC schedule relating to the Class
B shares acquired as a result of the exchange.
 
    Contingent Deferred Sales Charges--Class B and Class C Shares. Class B
shares purchased on or after October 21, 1994 and Class C shares which are
redeemed within one year after acquisition may be subject to a 1.0% CDSC charged
as a percentage of the dollar amount subject thereto. The charge will be
assessed on an amount equal to the lesser of the proceeds of redemption or the
cost of the shares being redeemed. Accordingly, no CDSC will be imposed on
increases in net asset value above the initial purchase price. In addition, no
CDSC will be assessed on shares derived from reinvestment of dividends or
capital gains distributions.
 
                                       27
<PAGE>
    Class B shares purchased prior to October 21, 1994 and redeemed within four
years of purchase are subject to a CDSC at the rates set forth below:
 
   
                                                                    CDSC
                                                               AS A PERCENTAGE
YEAR SINCE PURCHASE                                           OF DOLLAR AMOUNT
PAYMENT MADE                                                  SUBJECT TO CHARGE
- -----------------------------------------------------------   -----------------
0-1........................................................          2.0%
1-2........................................................          1.5%
2-3........................................................          1.0%
3-4........................................................          0.5%
4 and thereafter...........................................         None
    
 
   
For the fiscal year ended October 31, 1994, the Distributor received CDSCs of
$162,923 with respect to redemptions of Class B shares, all of which were paid
to Merrill Lynch. No Class C CDSCs were received by the Distributor and Merrill
Lynch for that year.
    
 
   
    In determining whether a CDSC is applicable to a redemption, the calculation
will be determined in the manner that results in the lowest applicable rate
being charged. Therefore, it will be assumed that the redemption is first of
shares held for over one year or shares acquired pursuant to reinvestment of
dividends or distributions and then of shares held longest during the one-year
period. The charge will not be applied to dollar amounts representing an
increase in the net asset value since the time of purchase. A transfer of shares
from a shareholder's account to another account will be assumed to be made in
the same order as a redemption.
    
 
    The Class B CDSC is waived on redemptions of shares following the death or
disability (as defined in the Internal Revenue Code of 1986, as amended) of a
shareholder. Additional information concerning the waiver of the Class B CDSC is
set forth in the Statement of Additional Information.
 
    Conversion of Class B Shares to Class D Shares. After approximately ten
years (the "Conversion Period"), Class B shares will be converted automatically
into Class D shares of the Fund. Class D shares are subject to an ongoing
account maintenance fee of 0.10% of net assets, which is lower than the account
maintenance fee borne by Class B shares, and Class D shares are not subject to
the distribution fee that is borne by Class B shares. Automatic conversion of
Class B shares into Class D shares will occur at least once each month (on the
"Conversion Date") on the basis of the relative net asset values of the shares
of the two classes on the Conversion Date, without the imposition of any sales
load, fee or other charge. Conversion of Class B shares to Class D shares will
not be deemed a purchase or sale of the shares for Federal income tax purposes.
 
    In addition, shares purchased through reinvestment of dividends on Class B
shares also will convert automatically to Class D shares. The Conversion Date
for dividend reinvestment shares will be calculated taking into account the
length of time the shares underlying such dividend reinvestment shares were
outstanding. If at a Conversion Date the conversion of Class B shares to Class D
shares of the Fund in a single account will result in less than $50 worth of
Class B shares being left in the account, all of the Class B shares of the Fund
held in the account on the Conversion Date will be converted to Class D shares
of the Fund.
 
                                       28
<PAGE>
    Share certificates for Class B shares of the Fund to be converted must be
delivered to the Transfer Agent at least one week prior to the Conversion Date
applicable to those shares. In the event such certificates are not received by
the Transfer Agent at least one week prior to the Conversion Date, the related
Class B shares will convert to Class D shares on the next scheduled Conversion
Date after such certificates are delivered.
 
    In general, Class B shares of equity MLAM-advised mutual funds will convert
approximately eight years after initial purchase, and Class B shares of taxable
and tax-exempt fixed income MLAM-advised mutual funds will convert approximately
ten years after initial purchase. If, during the Conversion Period, a
shareholder exchanges Class B shares with an eight-year Conversion Period for
Class B shares with a ten-year Conversion Period, or vice versa, the Conversion
Period applicable to the Class B shares acquired in the exchange will apply, and
the holding period for the shares exchanged will be tacked onto the holding
period for the shares acquired.
 
DISTRIBUTION PLANS
 
    The Fund has adopted separate distribution plans for Class B, Class C and
Class D shares pursuant to Rule 12b-1 under the Investment Company Act (each a
"Distribution Plan") with respect to the account maintenance and/or distribution
fees paid by the Fund to the Distributor with respect to such classes. The Class
B and Class C Distribution Plans provide for the payment of account maintenance
fees and distribution fees, and the Class D Distribution Plan provides for the
payment of account maintenance fees.
 
    The Distribution Plans for Class B, Class C and Class D shares each provide
that the Fund pays the Distributor an account maintenance fee relating to the
shares of the relevant class, accrued daily and paid monthly, at the annual rate
of 0.20% (in the case of Class B and Class C shares) or 0.10% (in the case of
Class D shares) of the average daily net assets of the Fund in order to
compensate the Distributor and Merrill Lynch (pursuant to a sub-agreement) in
connection with account maintenance activities.
 
    The Distribution Plans for Class B and Class C shares each provide that the
Fund also pays the Distributor a distribution fee relating to the shares of the
relevant class, accrued daily and paid monthly, at the annual rate of 0.10% of
the average daily net assets of the Fund attributable to the shares of the
relevant class in order to compensate the Distributor and Merrill Lynch
(pursuant to a sub-agreement) for providing shareholder and distribution
services, and bearing certain distribution-related expenses of the Fund,
including payments to financial consultants for selling Class B and Class C
shares of the Fund. The Distribution Plans relating to Class B and Class C
shares are designed to permit an investor to purchase Class B and Class C shares
through dealers without the assessment of an initial sales charge and at the
same time permit the dealer to compensate its financial consultants in
connection with the sale of the Class B and Class C shares. In this regard, the
purpose and function of the ongoing distribution fees and the CDSC are the same
as those of the initial sales charge with respect to the Class A and Class D
shares of the Fund in that the deferred sales charges provide for the financing
of the distribution of the Fund's Class B and Class C shares.
 
                                       29
<PAGE>
    Prior to July 6, 1993, the Fund paid the Distributor an ongoing distribution
fee, accrued daily and paid monthly, at the annual rate of 1.0% of average daily
net assets of the Class B shares of the Fund under a distribution plan
previously adopted by the Fund (the "Prior Plan") to compensate the Distributor
and Merrill Lynch for providing account maintenance and distribution-related
activities and services to Class B shareholders. The fee rate payable and the
services provided under the Prior Plan are identical to the aggregate fee rate
payable and the services provided under the Class B Distribution Plan, the
difference being that the account maintenance and distribution services have
been unbundled.
 
   
    For the year ended October 31, 1994, the Fund paid the Distributor account
maintenance fees of $151,213 and distribution fees of $302,427 under the Class B
Distribution Plan. From October 21, 1994 (commencement of operations) to October
31, 1994, the Fund did not pay any account maintenance fees and distribution
fees to the Distributor under the Class C Distribution Plan. For the same
period, the Fund did not pay any account maintenance fees to the Distributor
under the Class D Distribution Plan.
    
 
   
    The payments under the Distribution Plans are based on a percentage of
average daily net assets attributable to the shares regardless of the amount of
expenses incurred, and accordingly, distribution-related revenues from the
Distribution Plans may be more or less than distribution-related expenses.
Information with respect to the distribution-related revenues and expenses is
presented to the Trustees for their consideration in connection with their
deliberations as to the continuance of the Class B and Class C Distribution
Plans. This information is presented annually as of December 31 of each year on
a "fully allocated accrual" basis and quarterly on a "direct expense and
revenue/cash" basis. On the fully allocated accrual basis, revenues consist of
the account maintenance fees, distribution fees, CDSCs and certain other related
revenues, and expenses consist of financial consultant compensation, branch
office and regional operation center selling and transaction processing
expenses, advertising, sales promotion and marketing expenses, corporate
overhead and interest expense. On the direct expense and revenue/cash basis,
revenues consist of the account maintenance fees, distribution fees and CDSCs,
and the expenses consist of financial consultant compensation. As of October 31,
1994, direct cash revenues for the period since commencement of the offering of
Class B and Class C shares exceeded direct cash expenses by $2,505,668 and $3,
respectively (1.769% and 0.03% of Class B and Class C net assets, respectively,
at that date). As of December 31, 1993, the last date for which fully allocated
accrual data is available, the fully allocated accrual expenses incurred by the
Distributor and Merrill Lynch with respect to Class B shares for the period
since commencement of operations exceeded fully allocated accrual revenues by
approximately $957,500 (0.61% of Class B net assets at that date). As of
December 31, 1993, direct cash revenues for the period since commencement of the
offering of Class B shares exceeded direct cash expenses by $2,172,010 (1.4% of
Class B net assets at that date). Information about Class C shares as of 
December 31, 1993 is not available since Class C shares were not offered 
publicly until October 21, 1994.
    
 
LIMITATIONS ON THE PAYMENT OF DEFERRED SALES CHARGES
 
    The maximum sales charge rule in the Rules of Fair Practice of the NASD
imposes a limitation on certain asset-based sales charges such as the
distribution fee and the CDSC borne by the Class B and Class C shares but not
the account maintenance fee. The maximum sales charge rule is applied
 
                                       30
<PAGE>
separately to each class. As applicable to the Fund, the maximum sales charge
rule limits the aggregate of distribution fee payments and CDSCs payable by the
Fund to (1) 6.25% of eligible gross sales of Class B shares and Class C shares,
computed separately (defined to exclude shares issued pursuant to dividend
reinvestments and exchanges), plus (2) interest on the unpaid balance for the
respective class, computed separately, at the prime rate plus 1% (the unpaid
balance being the maximum amount payable minus amounts received from the payment
of the distribution fee and the CDSC). In connection with the Class B shares,
the Distributor has voluntarily agreed to waive interest charges on the unpaid
balance in excess of 0.50% of eligible gross sales. Consequently, the maximum
amount payable to the Distributor (referred to as the "voluntary maximum") in
connection with the Class B shares is 6.75% of eligible gross sales. The
Distributor retains the right to stop waiving the interest charges at any time.
To the extent payments would exceed the voluntary maximum, the Fund will not
make further payments of the distribution fee with respect to Class B shares,
and any CDSCs will be paid to the Fund rather than to the Distributor; however,
the Fund will continue to make payments of the account maintenance fee. In
certain circumstances the amount payable pursuant to the voluntary maximum may
exceed the amount payable under the NASD formula. In such circumstances payment
in excess of the amount payable under the NASD formula will not be made.
 
                              -------------------
 
    The Fund has no obligation with respect to distribution and/or account
maintenance-related expenses incurred by the Distributor and Merrill Lynch in
connection with Class B, Class C or Class D shares, and there is no assurance
that the Trustees of the Trust will approve the continuance of the Distribution
Plans from year to year. However, the Distributor intends to seek annual
continuation of the Distribution Plans. In their review of the Distribution
Plans, the Trustees will be asked to take into consideration expenses incurred
in connection with the account maintenance and/or distribution of each class of
shares separately. The initial sales charges, the account maintenance fee, the
distribution fee and/or the CDSCs received with respect to one class will not be
used to subsidize the sale of shares of another class. Payments of the
distribution fee on Class B shares will terminate upon conversion of those Class
B shares into Class D shares as set forth under "Deferred Sales Charge
Alternative--Class B Shares--Conversion of Class B Shares to Class D Shares".
 
                              REDEMPTION OF SHARES
 
    The Trust is required to redeem for cash all shares of the Fund upon receipt
of a written request in proper form. The redemption price is the net asset value
per share next determined after the initial receipt of proper notice of
redemption. Except for any CDSC which may be applicable, there will be no charge
for redemption if the redemption request is sent directly to the Transfer Agent.
Shareholders liquidating their holdings will receive upon redemption all
dividends declared through the date of redemption. The value of shares at the
time of redemption may be more or less than the shareholder's cost, depending on
the market value of the securities held by the Fund at such time.
 
REDEMPTION
 
   
    A shareholder wishing to redeem shares may do so by tendering the shares
directly to the Trust's Transfer Agent, Financial Data Services, Inc., Transfer
Agency Mutual Fund Operations, P.O. Box
    
 
                                       31
<PAGE>
   
45289, Jacksonville, Florida 32232-5289. Redemption requests delivered other
than by mail should be delivered to Financial Data Services, Inc., Transfer
Agency Mutual Fund Operations, 4800 Deer Lake Drive East, Jacksonville, Florida
32246-6484. Proper notice of redemption in the case of shares deposited with the
Transfer Agent may be accomplished by a written letter requesting redemption.
Proper notice of redemption in the case of shares for which certificates have
been issued may be accomplished by a written letter as noted above accompanied
by certificates for the shares to be redeemed. Redemption requests should not be
sent to the Trust or to the Fund. A redemption request requires the signature(s)
of all persons in whose name(s) the shares are registered, signed exactly as
such name(s) appear(s) on the Transfer Agent's register or on the certificate,
as the case may be. The signature(s) on the redemption request must be
guaranteed by an "eligible guarantor institution" as such is defined in Rule
17Ad-15 under the Securities Exchange Act of 1934, as amended, the existence and
validity of which may be verified by the Transfer Agent through the use of
industry publications. Notarized signatures are not sufficient. In certain
instances, the Transfer Agent may require additional documents such as, but not
limited to, trust instruments, death certificates, appointments as executor or
administrator, or certificates of corporate authority. For shareholders
redeeming directly with the Transfer Agent, payments will be mailed within seven
days of receipt of a proper notice of redemption.
    
 
    At various times, the Trust may be requested to redeem Fund shares for which
it has not yet received good payment (e.g., cash, Federal funds or certified
check drawn on a United States bank). The Trust may delay or cause to be delayed
the mailing of a redemption check until such time as it has assured itself that
good payment has been collected for the purchase of such shares. Normally, this
delay will not exceed 10 days.
 
REPURCHASE
 
   
    The Trust also will repurchase Fund shares through a shareholder's listed
securities dealer. The Trust normally will accept orders to repurchase Fund
shares by wire or telephone from dealers for their customers at the net asset
value next computed after receipt of the order by the dealer, provided that the
request for repurchase is received by the dealer prior to the regular close of
business on the New York Stock Exchange on the day received and is received by
the Trust from such dealer not later than 30 minutes after the close of business
on the New York Stock Exchange (generally, 4:00 P.M., New York time) on the same
day.
    
 
   
    Dealers have the responsibility of submitting such repurchase requests to
the Trust not later than 30 minutes after the close of business on the New York
Stock Exchange, in order to obtain that day's closing price. These repurchase
arrangements are for the convenience of shareholders and do not involve a charge
by the Trust (other than any applicable CDSC). Securities firms which do not
have selected dealer agreements with the Distributor, however, may impose a
charge on the shareholder for transmitting the notice of repurchase to the
Trust. Merrill Lynch may charge its customers a processing fee (currently $4.85)
to confirm a repurchase of shares. Redemptions directly through the Fund's
Transfer Agent are not subject to the processing fee. The Trust reserves the
right to reject any order for repurchase, which right of rejection might affect
adversely shareholders seeking redemption through the repurchase procedure. A
shareholder whose order for repurchase is rejected by the Trust, however, may
redeem Fund shares as set forth above.
    
 
                                       32
<PAGE>
REINSTATEMENT PRIVILEGE--CLASS A AND CLASS D SHARES
 
    Shareholders who have redeemed their Class A or Class D shares have a
one-time privilege to reinstate their accounts by purchasing Class A or Class D
shares, as the case may be, of the Fund at net asset value without a sales
charge up to the dollar amount redeemed. The reinstatement privilege may be
exercised by sending a notice of exercise along with a check for the amount to
be reinstated to the Transfer Agent within 30 days after the date the request
for redemption was accepted by the Transfer Agent or the Distributor. The
reinstatement will be made at the net asset value per share next determined
after the notice of reinstatement is received and cannot exceed the amount of
the redemption proceeds. The reinstatement privilege is a one-time privilege and
may be exercised by the Class A or Class D shareholder only the first time such
shareholder makes a redemption.
 
                              SHAREHOLDER SERVICES
 
    The Trust offers a number of shareholder services and investment plans
designed to facilitate investment in shares of the Fund. Full details as to each
of such services, copies of the various plans described below and instructions
as to how to participate in the various plans and services, or information on
changing options with respect thereto, can be obtained from the Trust by calling
the telephone number on the cover page hereof or from the Distributor or Merrill
Lynch. Included in such services are the following:
 
    Investment Account. Each shareholder whose account is maintained at the
Transfer Agent has an investment account ("Investment Account") and will
receive, at least quarterly, statements from the Transfer Agent showing any
automatic investment purchases and reinvestments of dividends and capital gain
distributions, and any other activity in the account since the preceding
statement. Shareholders also will receive separate confirmations for each
purchase or sale transaction other than automatic investment purchase and the
reinvestment of dividends and capital gain distributions. A shareholder may make
additions to his Investment Account at any time by mailing a check directly to
the Transfer Agent. Shareholders also may maintain their accounts through
Merrill Lynch. Upon the transfer of shares out of a Merrill Lynch brokerage
account, an Investment Account in the transferring shareholder's name will be
opened automatically, without charge, at the Transfer Agent. Shareholders
considering transferring their Class A or Class D shares from Merrill Lynch to
another brokerage firm or financial institution should be aware that, if the
firm to which the Class A or Class D shares are to be transferred will not take
delivery of shares of the Fund, a shareholder either must redeem the Class A or
Class D shares (paying any applicable CDSC) so that the cash proceeds can be
transferred to the account at the new firm or such shareholder must continue to
maintain an Investment Account at the Transfer Agent for those Class A or Class
D shares. Shareholders interested in transferring their Class B or Class C
shares from Merrill Lynch and who do not wish to have an Investment Account
maintained for such shares at the Transfer Agent may request their new brokerage
firm to maintain such shares in an account registered in the name of the
brokerage firm for the benefit of the shareholder at the Transfer Agent.
 
    Exchange Privilege. Shareholders of each class of shares of the Fund have an
exchange privilege with certain other MLAM-advised mutual funds. There is
currently no limitation on the number of
 
                                       33
<PAGE>
times a shareholder may exercise the exchange privilege. The exchange privilege
may be modified or terminated in accordance with the rules of the Commission.
 
    Under the Merrill Lynch Select PricingSM System, Class A shareholders may
exchange Class A shares of the Fund for Class A shares of a second MLAM-advised
mutual fund if the shareholder holds any Class A shares of the second fund in
his account in which the exchange is made at the time of the exchange or is
otherwise eligible to purchase Class A shares of the second fund. If the Class A
shareholder wants to exchange Class A shares for shares of a second MLAM-advised
mutual fund, and the shareholder does not hold Class A shares of the second fund
in his account at the time of the exchange and is not otherwise eligible to
acquire Class A shares of the second fund, the shareholder will receive Class D
shares of the second fund as a result of the exchange. Class D shares also may
be exchanged for Class A shares of a second MLAM-advised mutual fund at any time
as long as, at the time of the exchange, the shareholder holds Class A shares of
the second fund in the account in which the exchange is made or is otherwise
eligible to purchase Class A shares of the second fund.
 
    Exchanges of Class A and Class D shares are made on the basis of the
relative net asset values per Class A or Class D share, respectively, plus an
amount equal to the difference, if any, between the sales charge previously paid
on the Class A or Class D shares being exchanged and the sales charge payable at
the time of the exchange on the shares being acquired.
 
   
    Class B, Class C and Class D shares are exchangeable with shares of the same
class of other MLAM-advised mutual funds.
    
 
   
    Shares of the Fund which are subject to a CDSC are exchangeable on the basis
of relative net asset value per share without the payment of any CDSC that might
otherwise be due upon redemption of the shares of the Fund. For purposes of
computing the CDSC that may be payable upon a disposition of the shares acquired
in the exchange, the holding period for the previously owned shares of the Fund
is "tacked" to the holding period of the newly acquired shares of the other
funds.
    
 
   
    Class A, Class B, Class C and Class D shares also are exchangeable for
shares of certain MLAM-advised money market funds specifically designated as
available for exchange by holders of Class A, Class B, Class C or Class D
shares. The period of time that Class A, Class B, Class C or Class D shares are
held in a money market fund, however, will not count toward satisfaction of the
holding period requirement for reduction of any CDSC imposed on such shares, if
any, and, with respect to Class B shares, toward satisfaction of the Conversion
Period.
    
 
    Class B shareholders of the Fund exercising the exchange privilege will
continue to be subject to the Fund's CDSC schedule if such schedule is higher
than the CDSC schedule relating to the new Class B shares. In addition, Class B
shares of the Fund acquired through use of the exchange privilege will be
subject to the Fund's CDSC schedule if such schedule is higher than the CDSC
schedule relating to the Class B shares of the MLAM-advised mutual fund from
which the exchange has been made.
 
    Exercise of the exchange privilege is treated as a sale for Federal income
tax purposes. For further information, see "Shareholder Services--Exchange
Privilege" in the Statement of Additional Information.
 
                                       34
<PAGE>
    The Fund's exchange privilege is modified with respect to purchases of Class
A and Class D shares under the Merrill Lynch Mutual Fund Adviser ("MFA")
program. First, the initial allocation of assets is made under the MFA program.
Then, any subsequent exchange under the MFA program of Class A or Class D shares
of a MLAM-advised mutual fund for Class A or Class D shares of the Fund will be
made solely on the basis of the relative net asset values of the shares being
exchanged. Therefore, there will not be a charge for any difference between the
sales charge previously paid on the shares of the other MLAM-advised mutual fund
and the sales charge payable on the shares of the Fund being acquired in the
exchange under the MFA program.
 
   
    Automatic Reinvestment of Dividends and Capital Gain Distributions. Unless
specific instructions are given as to the method of payment of dividends and
capital gains distributions, all dividends and capital gain distributions are
reinvested automatically in full and fractional shares of the Fund, without a
sales charge, at the net asset value per share next determined on the payable
date of such dividend or distribution. A shareholder may at any time, by
notifying the Transfer Agent in writing or by telephone (1-800-MER-FUND), elect
to have subsequent dividends or both dividends and capital gain distributions
paid in cash, rather than reinvested, in which event payment will be mailed on
or about the payment date. Cash payments can also be directly deposited to the
shareholder's bank account. No CDSC will be imposed upon redemption of shares
issued as a result of the automatic reinvestment of dividends or capital gain
distributions.
    
 
   
    Systematic Withdrawal Plans. A Class A or Class D shareholder may elect to
receive systematic withdrawal payments from his or her Investment Account in the
form of payments by check or through automatic payment by direct deposit to his
or her bank account on either a monthly or quarterly basis. A Class A or Class D
shareholder whose shares are held within a CMA(R) or CBA(R) Account may elect to
have shares redeemed on a monthly, bimonthly, quarterly, semiannual or annual
basis through the CMA(R)/CBA(R) Systematic Redemption Program, subject to
certain conditions.
    
 
   
    Automatic Investment Plans. Regular additions of Class A, Class B, Class C
or Class D shares may be made to an investor's Investment Account by
pre-arranged charges of $50 or more to his regular bank account. Investors who
maintain CMA(R) or CBA(R) accounts may arrange to have periodic investments made
in the Fund in their CMA(R) or CBA(R) accounts or in certain related accounts in
amounts of $100 or more through the CMA(R)/CBA(R) Automated Investment Program.
    
 
                             PORTFOLIO TRANSACTIONS
 
    Subject to the policies established by the Trustees or the Trust, the
Manager is primarily responsible for the execution of the Fund's portfolio
transactions. The Trust has no obligation to deal with any dealer or group of
dealers in the execution of transactions in portfolio securities of the Fund.
The Municipal Bonds and other securities in which the Fund invests are traded
primarily in the over-the-counter market. Where possible, the Trust deals
directly with the dealers who make a market in the securities involved except in
those circumstances where better prices and execution are available elsewhere.
It is the policy of the Trust to obtain the best results in conducting portfolio
transactions for the Fund, taking into account such factors as the price
(including the applicable dealer spread or commission), the size, type and
difficulty of the transaction involved, the firm's general execution and
 
                                       35
<PAGE>
   
operations facilities, and the firm's risk in positioning the securities
involved and the provision of supplemental investment research by the firm.
While reasonably competitive spreads or commissions are sought, the Fund will
not necessarily be paying the lowest spread or commission available. The sale of
shares may be taken into consideration as a factor in the selection of brokers
or dealers to execute portfolio transactions for the Fund. The portfolio
securities of the Fund generally are traded on a net basis and normally do not
involve either brokerage commissions or transfer taxes. The cost of portfolio
securities transactions of the Fund primarily consists of dealer or underwriter
spreads. Under the Investment Company Act, persons affiliated with the Trust,
including Merrill Lynch, are prohibited from dealing with the Fund as a
principal in the purchase and sale of securities unless such trading is
permitted by an exemptive order issued by the Commission. The Trust has obtained
an exemptive order permitting it to engage in certain principal transactions
with Merrill Lynch involving high-quality short-term Municipal Bonds subject to
certain conditions. In addition, the Trust may not purchase securities,
including Municipal Bonds, for the Fund during the existence of any underwriting
syndicate of which Merrill Lynch is a member except pursuant to procedures
approved by the Trustees of the Trust which comply with rules adopted by the
Commission. An affiliated person of the Trust may serve as its broker in
over-the-counter transactions conducted by the Fund on an agency basis only. For
the fiscal years ended October 31, 1992, 1993 and 1994, the Fund paid no
brokerage commissions.
    
 
                            DISTRIBUTIONS AND TAXES
 
DISTRIBUTIONS
 
   
    The net investment income of the Fund is declared as dividends daily prior
to the determination of the net asset value which is calculated 15 minutes after
the close of business on the New York Stock Exchange (generally, 4:00 P.M., New
York time) on that day. The net investment income of the Fund for dividend
purposes consists of interest earned on portfolio securities, less expenses, in
each case computed since the most recent determination of net asset value.
Expenses of the Fund, including the management and any account maintenance
and/or distribution fees, are accrued daily. Dividends of net investment income
are declared daily and reinvested monthly in the form of additional full and
fractional shares of the Fund at net asset value unless the shareholder elects
to receive such dividends in cash. Shares will accrue dividends as long as they
are issued and outstanding. Shares are issued and outstanding as of the
settlement date of a purchase order to the day prior to the settlement date of a
redemption order.
    
 
    All net realized long-or short-term capital gains, if any, are declared and
distributed to the Fund's shareholders annually after the close of the Fund's
fiscal year. Capital gains distributions will be reinvested automatically in
shares of the Fund unless the shareholder elects to receive such distributions
in cash.
 
    The per share dividends and distributions on each class of shares will be
reduced as a result of any account maintenance, distribution and transfer agency
fees applicable to that class. See "Additional Information--Determination of Net
Asset Value".
 
    See "Shareholder Services--Automatic Reinvestment of Dividends and Capital
Gain Distributions" for information as to how to elect either dividend
reinvestment or cash payments. Portions of dividends and distributions which are
taxable to shareholders as described below are subject to income tax whether
they are reinvested in Fund shares or received in cash.
 
                                       36
<PAGE>
TAXES
 
    The Trust intends to continue to qualify the Fund for the special tax
treatment afforded regulated investment companies ("RICs") under the Internal
Revenue Code of 1986, as amended (the "Code"). If it so qualifies, in any
taxable year in which it distributes at least 90% of its taxable net income and
90% of its tax-exempt net income (see below), the Fund (but not its
shareholders) will not be subject to Federal income tax to the extent that it
distributes its net investment income and net realized capital gains. The Trust
intends to cause the Fund to distribute substantially all of such income.
 
    To the extent that the dividends distributed to the Fund's Class A, Class B,
Class C and Class D shareholders (together, the "shareholders") are derived from
interest income exempt from Federal income tax under Code Section 103(a) and are
properly designated as "exempt-interest dividends" by the Trust, they will be
excludable from a shareholder's gross income for Federal income tax purposes.
Exempt-interest dividends are included, however, in determining the portion, if
any, of a person's Social Security benefits and railroad retirement benefits
subject to Federal income tax. The Trust will inform shareholders annually as to
the portion of the Fund's distributions which constitutes "exempt-interest
dividends". Interest on indebtedness incurred or continued to purchase or carry
Fund shares is not deductible for Federal income tax purposes to the extent
attributable to exempt-interest dividends. Persons who may be "substantial
users" (or "related persons" of substantial users) of facilities financed by
industrial development bonds or private activity bonds held by the Fund should
consult their tax advisers before purchasing Fund shares.
 
   
    To the extent that the Fund's distributions are derived from interest on its
taxable investments or from an excess of net short-term capital gains over net
long-term capital losses ("ordinary income dividends"), such distributions are
considered ordinary income for Federal income tax purposes. Distributions, if
any, of net long-term capital gains from the sale of securities or from certain
transactions in futures or options ("capital gain dividends") are taxable as
long-term capital gains for Federal income tax purposes, regardless of the
length of time the shareholder has owned Fund shares. Distributions by the Fund,
whether from exempt-interest income, ordinary income or capital gains, are not
eligible for the dividends received deduction allowed to corporations under the
Code. Under the Revenue Reconciliation Act of 1993, all or a portion of the
Fund's gain from the sale or redemption of tax-exempt obligations purchased at a
market discount will be treated as ordinary income rather than capital gain.
This rule may increase the amount of ordinary income dividends received by
shareholders. Distributions in excess of the Fund's earnings and profits first
will reduce the adjusted tax basis of a holder's shares and, after such adjusted
tax basis is reduced to zero, will constitute capital gains to such holder
(assuming the shares are held as a capital asset). Any loss upon the sale or
exchange of Fund shares held for six months or less will be treated as long-term
capital loss to the extent of any capital gain dividends received by the
shareholder. In addition, such loss will be disallowed to the extent of any
exempt-interest dividends received by the shareholder. If the Fund pays a
dividend in January which was declared the previous October, November or
December to shareholders of record on a specified date in one of such months,
then such dividend will be treated for tax purposes as having been paid by the
Fund and received by its shareholders on December 31 of the year in which the
dividend was declared.
    
 
    The Code subjects interest received on certain otherwise tax-exempt
securities to an alternative minimum tax. This alternative minimum tax applies
to interest received on "private activity bonds" issued after August 7, 1986.
Private activity bonds are bonds which, although tax exempt, are used for
 
                                       37
<PAGE>
   
purposes other than those generally performed by governmental units and which
benefit non-governmental entities (e.g., bonds used for industrial development
or housing purposes). Income received on such bonds is classified as an item of
"tax preference", which could subject investors in such bonds, including
shareholders of the Fund, to an alternative minimum tax. The Fund will purchase
such "private activity bonds", and the Trust will report to shareholders within
60 days after the Fund's taxable year-end the portion of its dividends declared
during the year which are a tax preference item for alternative minimum tax
purposes. The Code further provides that corporations are subject to an
alternative minimum tax based, in part, on certain differences between taxable
income as adjusted for other tax preferences and the corporation's "adjusted
current earnings", which more closely reflect a corporation's economic income.
Because an exempt-interest dividend paid by the Fund will be included in
adjusted current earnings, a corporate shareholder may be required to pay an
alternative minimum tax on exempt-interest dividends paid by the Fund.
    
 
    The Revenue Reconciliation Act of 1993 has added new marginal tax brackets
of 36% and 39.6% for individuals and has created a graduated structure of 26%
and 28% for the alternative minimum tax applicable to individual taxpayers.
These rate increases may affect an individual investor's after-tax return from
an investment in the Fund as compared with such investor's return from taxable
investments.
 
    No gain or loss will be recognized by Class B shareholders on the conversion
of their Class B shares into Class D shares. A shareholder's basis in the Class
D shares acquired will be the same as such shareholder's basis in the Class B
shares converted, and the holding period of the acquired Class D shares will
include the holding period for the converted Class B shares.
 
    If a shareholder exercises an exchange privilege within 90 days of acquiring
such shares, then the loss the shareholder can recognize on the exchange will be
reduced (or the gain increased) to the extent the sales charge paid to the Fund
reduces any sales charge the shareholder would have owed upon purchase of the
new shares in the absence of the exchange privilege. Instead, such sales charge
will be treated as an amount paid for the new shares.
 
    A loss realized on a sale or exchange of shares of the Fund will be
disallowed if other Fund shares are acquired (whether through the automatic
reinvestment of dividends or otherwise) within a 61-day period beginning 30 days
before and ending 30 days after the date that the shares are disposed of. In
such a case, the basis of the shares acquired will be adjusted to reflect the
disallowed loss.
 
    Under certain Code provisions, some shareholders may be subject to a 31%
withholding tax on certain ordinary income dividends and on capital gain
dividends and redemption payments ("backup withholding"). Generally,
shareholders subject to backup withholding will be those for whom no certified
taxpayer identification number is on file with the Trust or who, to the Trust's
knowledge, have furnished an incorrect number. When establishing an account, an
investor must certify under penalty of perjury that such number is correct and
that such investor is not otherwise subject to backup withholding.
 
    The Code provides that every person required to file a tax return must
include for information purposes on such return the amount of exempt-interest
dividends received from all sources (including the Fund) during the taxable
year.
 
                                       38
<PAGE>
    The exemption from Federal income tax for exempt-interest dividends does not
necessarily result in an exemption for such dividends under the income or other
tax laws of any state or local taxing authority. Shareholders are advised to
consult their own tax advisers concerning state and local tax matters.
 
    The foregoing is a general and abbreviated summary of the applicable
provisions of the Code and Treasury regulations presently in effect. For the
complete provisions, reference should be made to the pertinent Code sections and
the Treasury regulations promulgated thereunder. The Code and the Treasury
regulations are subject to change by legislative or administrative action either
prospectively or retroactively.
 
    Shareholders are urged to consult their tax advisers regarding specific
questions as to Federal, foreign, state or local taxes.
 
                                PERFORMANCE DATA
 
    From time to time the Fund may include its average annual total return,
yield and tax equivalent yield for various specified time periods in
advertisements or information furnished to present or prospective shareholders.
Average annual total return, yield and tax equivalent yield are computed
separately for Class A, Class B, Class C and Class D shares in accordance with
formulas specified by the Commission.
 
    Average annual total return quotations for the specified periods will be
computed by finding the average annual compounded rates of return (based on net
investment income and any realized and unrealized capital gains or losses on
portfolio investments over such periods) that would equate the initial amount
invested to the redeemable value of such investment at the end of each period.
Average annual total return will be computed assuming all dividends and
distributions are reinvested and taking into account all applicable recurring
and nonrecurring expenses, including any CDSC that would be applicable to a
complete redemption of the investment at the end of the specified period such as
in the case of Class B and Class C shares and the maximum sales charge in the
case of Class A and Class D shares. Dividends paid by the Fund with respect to
all shares, to the extent any dividends are paid, will be calculated in the same
manner at the same time on the same day and will be in the same amount, except
that account maintenance fees and distribution charges and any incremental
transfer agency costs relating to each class of shares will be borne exclusively
by that class. The Fund will include performance data for all classes of shares
of the Fund in any advertisement or information including performance data of
the Fund.
 
    The Fund also may quote total return and aggregate total return performance
data for various specified time periods. Such data will be calculated
substantially as described above, except that (1) the rates of return calculated
will not be average annual rates, but rather, actual annual, annualized or
aggregate rates of return and (2) the maximum applicable sales charges will not
be included with respect to annual or annualized rates of return calculations.
Aside from the impact on the performance data calculations of including or
excluding the maximum applicable sales charges, actual annual or annualized
total return data generally will be lower than average annual total return data
since the average annual rates of return reflect compounding; aggregate total
return data generally will be higher
 
                                       39
<PAGE>
than average annual total return data since the aggregate rates of return
reflect compounding over a longer period of time. In advertisements distributed
to investors whose purchases are subject to reduced sales charges in the case of
Class A and Class D shares or waiver of the CDSC in the case of Class B and
Class C shares, the performance data may take into account the reduced, and not
the maximum, sales charge or may not take into account the CDSC and therefore
may reflect greater total return since, due to the reduced sales charges or
waiver of the CDSC, a lower amount of expenses is deducted. See "Purchase of
Shares". The Fund's total return may be expressed either as a percentage or as a
dollar amount in order to illustrate such total return on a hypothetical $1,000
investment in the Fund at the beginning of each specified period.
 
   
    Yield quotations will be computed based on a 30-day period by dividing (a)
the net income based on the yield of each security earned during the period by
(b) the average daily number of shares outstanding during the period that were
entitled to receive dividends multiplied by the maximum offering price/net asset
value per share on the last day of the period. Tax equivalent yield quotations
will be computed by dividing (a) the part of the Fund's yield that is tax-exempt
by (b) one minus a stated tax rate and (c) adding the result to that part, if
any, of the Fund's yield that is not tax-exempt. The Commission standardized
yield for the 30-day period ended October 31, 1994 was 4.74% for Class A shares
and 4.47% for Class B shares and the tax equivalent yield for the same period
(based on a Federal income tax rate of 28%) was 6.58% for Class A shares and
6.21% for Class B shares. The Commission standardized yield for the 30-day
period ended December 31, 1994 was 5.16% for Class A shares, 4.91% for Class B
shares, 4.94% for Class C shares and 5.11% for Class D shares and the tax
equivalent yield for the same period (based on a Federal income tax rate of 28%)
was 7.17% for Class A shares, 6.82% for Class B shares, 6.86% for Class C shares
and 7.10% for Class D shares.
    
 
    Total return, yield and tax-equivalent yield figures are based on the Fund's
historical performance and are not intended to indicate future performance. The
Fund's total return, yield and tax-equivalent yield will vary depending on
market conditions, the securities comprising the Fund's portfolio, the Fund's
operating expenses and the amount of realized and unrealized net capital gains
or losses during the period. The value of an investment in the Fund will
fluctuate and an investor's shares, when redeemed, may be worth more or less
than their original cost.
 
   
    On occasion, the Fund may compare its performance to performance data
published by Lipper Analytical Services, Inc., Morningstar Publications, Inc.
("Morningstar") and CDA Investment Technology, Inc. or to data contained in
publications such as ]Money Magazine, U.S. News & World Report, Business Week,
Forbes Magazine and Fortune Magazine. From time to time, the Fund may include
the Fund's Morningstar risk-adjusted performance ratings in advertisements or
supplemental sales literature. As with other performance data, performance
comparisons should not be considered indicative of the Fund's relative
performance for any future period.
    
 
                             ADDITIONAL INFORMATION
 
DETERMINATION OF NET ASSET VALUE
 
   
    The net asset value of the shares of all classes of the Fund is determined
by the Manager once daily 15 minutes after the close of business on the New York
Stock Exchange (generally, 4:00 P.M., New York time), on each day during which
the New York Stock Exchange is open for trading. The net asset
    
 
                                       40
<PAGE>
value per share is computed by dividing the sum of the value of the securities
held by the Fund plus any cash or other assets minus all liabilities by the
total number of shares outstanding at such time, rounded to the nearest cent.
Expenses, including the management fees payable to the Manager and any account
maintenance and/or distribution fees payable to the Distributor, are accrued
daily.
 
   
    The net asset value per share of Class A shares generally will be higher
than the net asset value per share of shares of the other classes, reflecting
the daily expense accruals of the account maintenance, distribution and higher
transfer agency fees applicable with respect to Class B and Class C shares and
the daily expense accruals of the account maintenance fees applicable with
respect to Class D shares; moreover, the net asset value per share of Class D
shares generally will be higher than the net asset value per share of Class B
and Class C shares, reflecting the daily expense accruals of the distribution
fees and higher account maintenance and transfer agency fees applicable with
respect to Class B and Class C shares. It is expected, however, that the per
share net asset value of the classes eventually will tend to converge (although
not necessarily meet) immediately after the payment of dividends, which will
differ by approximately the amount of the expense accrual differentials between
the classes.
    
 
ORGANIZATION OF THE TRUST
 
   
    The Trust is an unincorporated business trust organized on August 14, 1986
under the laws of Massachusetts. It is a diversified, open-end management
investment company comprised of separate series ("Series"), each of which is a
separate portfolio offering shares to selected groups of purchasers. At the date
of this Prospectus, the Fund is the only existing Series of the Trust. The
Trustees are authorized to create an unlimited number of Series and, with
respect to each Series, to issue an unlimited number of full and fractional
shares of beneficial interest of $.10 par value of different classes.
Shareholder approval is not required for the authorization of additional Series
or classes of a Series of the Trust. The shares of the Fund are divided into
Class A, Class B, Class C and Class D shares. Class A, Class B, Class C and
Class D shares represent an interest in the same assets of the Fund and have
identical voting, dividend, liquidation and other rights and the same terms and
conditions except that Class B, Class C and Class D shares bear certain expenses
related to the account maintenance associated with such shares, and Class B and
Class C shares bear certain expenses related to the distribution of such shares.
Each class has exclusive voting rights with respect to matters relating to
account maintenance and distribution expenditures, as applicable. See "Purchase
of Shares". The Trust has received an order from the Commission permitting the
issuance and sale of multiple classes of shares. The Trustees of the Trust may
classify and reclassify the shares of any Series into additional classes at a
future date.
    
 
    Shareholders are entitled to one vote for each full share held and to
fractional votes for fractional shares held in the election of Trustees (to the
extent hereinafter provided) and on other matters submitted to the vote of
shareholders. All shares of the Trust have equal voting rights, except that only
shares of the respective Series are entitled to vote on matters concerning only
that Series and, as noted above, each class shares of a Series will have
exclusive voting rights with respect to matters relating to the account
maintenance and distribution expenses being borne solely by such class. There
normally will be no meetings of shareholders for the purpose of electing
Trustees unless and until such time as less than a majority of the Trustees
holding office have been elected by shareholders, at which time the Trustees
then in office will call a shareholders' meeting for the election of Trustees.
Shareholders may,
 
                                       41
<PAGE>
in accordance with the terms of the Declaration of Trust, cause a meeting of
shareholders to be held for the purpose of voting on the removal of Trustees.
Also, the Trust will be required to call a special meeting of shareholders of a
Series in accordance with the requirements of the Investment Company Act to seek
approval of new management and advisory arrangements, of a material increase in
account maintenance or distribution fees or of a change in the fundamental
policies, objectives or restrictions of a Series. Except as set forth above, the
Trustees shall continue to hold office and appoint successor Trustees. Each
issued and outstanding share is entitled to participate equally in dividends and
distributions declared by the respective Series and in net assets of such Series
upon liquidation or dissolution remaining after satisfaction of outstanding
liabilities except, as noted above, the Class B, Class C and Class D shares bear
certain additional expenses. The obligations and liabilities of a particular
Series are restricted to the assets of that Series and do not extend to the
assets of the Trust generally. The shares of each Series, when issued, will be
fully paid and non-assessable by the Trust.
   
    The Declaration of Trust establishing the Trust, dated August 14, 1986, a
copy of which together with all amendments thereto (the "Declaration") is on
file in the office of the Secretary of the Commonwealth of Massachusetts,
provides that the name "Merrill Lynch Municipal Series Trust" refers to the
Trustees under the Declaration collectively as Trustees, but not as individuals
or personally; and no Trustee, shareholder, officer, employee or agent of the
Trust shall be held to any personal liability, nor shall resort be had to their
private property for the satisfaction of any obligation or claim of the Trust,
but the "Trust Property" (as defined in the Declaration) only shall be liable.
    
 
SHAREHOLDER REPORTS
 
    Only one copy of each shareholder report and certain shareholder
communications will be mailed to each identified shareholder regardless of the
number of accounts such shareholder has. If a shareholder wishes to receive
separate copies of each report and communication for each of the shareholder's
related accounts the shareholder should notify in writing:
 
                         Financial Data Services, Inc.
                                  Attn: TAMFO
                                 P.O. Box 45289
                        Jacksonville, Florida 32232-5289
 
    The written notification should include the shareholder's name, address, tax
identification number and Merrill Lynch and/or mutual fund account numbers. If
you have any questions regarding this please call your Merrill Lynch financial
consultant or Financial Data Services, Inc. at 800-637-3863.
 
SHAREHOLDER INQUIRIES
 
    Shareholder inquiries with respect to the Fund may be addressed to the Trust
at the address or telephone number set forth on the cover page of this
Prospectus.
 
 
                                       42
<PAGE>
                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND--
                          AUTHORIZATION FORM (PART 1)
- --------------------------------------------------------------------------------
 
1. SHARE PURCHASE APPLICATION
 
   I, being of legal age, wish to purchase: (choose one)
 
<TABLE>
<S>                                           <C>                               <C>
                / / Class A shares             / / Class B   shares             / / Class D shares
</TABLE>

of Merrill Lynch Municipal Intermediate Term Fund and establish an Investment
Account as described in the Prospectus. In the event that I am not eligible to
purchase Class A shares, I understand that Class D shares will be purchased.
 
  Basis for establishing an Investment Account:
 
  A. I enclose a check for $  ......... payable to Financial Data Services,
Inc., as an initial investment (minimum $1,000). I understand that this purchase
will be executed at the applicable offering price next to be determined after
this Application is received by you.
 
  B. I already own shares of the following Merrill Lynch mutual funds that would
qualify for the right of accumulation as outlined in the Statement of Additional
Information: (Please list all funds. Use a separate sheet of paper if
necessary.)
 
<TABLE>
<S>                                            <C>
1............................................  4............................................
2............................................  5............................................
3............................................  6............................................
</TABLE>
 
Name ...........................................................................
                 First Name                 Initial                 Last Name
Name
 
Name of Co-Owner (if any) ......................................................
                            First Name           Initial            Last Name
Name
 
Address ........................................................................
 ...............................................................................
                                                                      (Zip Code)
 
<TABLE>
<S>                                            <C>
Occupation...................................  Name and Address of Employer.................
.............................................  .............................................
             Signature of Owner                       Signature of Co-Owner (if any)
</TABLE>
 
(In the case of co-owner, a joint tenancy with right of survivorship will be
presumed unless otherwise specified.)
- --------------------------------------------------------------------------------
2. DIVIDEND AND CAPITAL GAIN DISTRIBUTION OPTIONS
 
Ordinary Income Dividends   Long-term Capital Gains
Select   / / Reinvest       Select   / / Reinvest
One:    / / Cash            One:    / / Cash
 
If no election is made, dividends and capital gains will be automatically
reinvested at net asset value without a sales charge.
 
IF CASH, SPECIFY HOW YOU WOULD LIKE YOUR DISTRIBUTIONS PAID TO YOU:   / / Check
or    / / Direct Deposit to bank account
 
IF DIRECT DEPOSIT TO BANK ACCOUNT IS SELECTED, PLEASE COMPLETE BELOW:
 
I hereby authorize payment of dividend and capital gain distributions by direct
deposit to my bank account and, if necessary, debit entries and adjustments for
any credit entries made to my account in accordance with the terms I have
selected on the Merrill Lynch Municipal Intermediate Term Fund Authorization
Form.
 
SPECIFY TYPE OF ACCOUNT (CHECK ONE): / / checking / / savings
 
Name on your Account............................................................
 
Bank Name.......................................................................
 
Bank Number ..........................  Account Number .........................
 
Bank Address....................................................................
 
I AGREE THAT THIS AUTHORIZATION WILL REMAIN IN EFFECT UNTIL I PROVIDE WRITTEN
NOTIFICATION TO FINANCIAL DATA SERVICES, INC. AMENDING OR TERMINATING THIS
SERVICE.
 
Signature of Depositor..........................................................
 
Signature of Depositor .................................................
                                                        Date....................
 
(If joint account, both must sign)
 
NOTE: IF DIRECT DEPOSIT TO BANK ACCOUNT IS SELECTED, YOUR BLANK, UNSIGNED CHECK
      MARKED "VOID" OR A DEPOSIT SLIP FROM YOUR SAVINGS ACCOUNT SHOULD ACCOMPANY
      THIS APPLICATION.
 
                                       43
<PAGE>
                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND--
                    AUTHORIZATION FORM (PART 1)--(CONTINUED)
- --------------------------------------------------------------------------------
 
3. SOCIAL SECURITY NUMBER OR TAXPAYER IDENTIFICATION NUMBER

            Social Security Number or Taxpayer Identification Number
 
   Under penalty of perjury, I certify (1) that the number set forth above is my
correct Social Security Number or Taxpayer Identification Number and (2) that I
am not subject to backup withholding (as discussed in the Prospectus under
"Distributions and Taxes--Taxes") either because I have not been notified that I
am subject thereto as a result of a failure to report all interest or dividends,
or the Internal Revenue Service ("IRS") has notified me that I am no longer
subject thereto.
 
INSTRUCTION: YOU MUST STRIKE OUT THE LANGUAGE IN (2) ABOVE IF YOU HAVE BEEN
NOTIFIED THAT YOU ARE SUBJECT TO BACKUP WITHHOLDING DUE TO UNDERREPORTING AND IF
YOU HAVE NOT RECEIVED A NOTICE FROM THE IRS THAT BACKUP WITHHOLDING HAS BEEN
TERMINATED. THE UNDERSIGNED AUTHORIZES THE FURNISHING OF THIS CERTIFICATION TO
OTHER MERRILL LYNCH SPONSORED MUTUAL FUNDS.
 
<TABLE>
<S>                                              <C>
...............................................  ...............................................
              Signature of Owner                         Signature of Co-Owner (if any)
</TABLE>
 
- --------------------------------------------------------------------------------
4. LETTER OF INTENTION--CLASS A AND D SHARES ONLY (SEE TERMS AND CONDITIONS IN
   THE STATEMENT OF ADDITIONAL INFORMATION)
 
                                                   .................. , 19 .....
                                                        Date of Initial Purchase
   Dear Sir/Madam:
 
   Although I am not obligated to do so, I intend to purchase shares of Merrill
Lynch Municipal Intermediate Term Fund or any other investment company with an
initial sales charge or deferred sales charge for which the Merrill Lynch Funds
Distributor, Inc. acts as distributor over the next 13-month period which will
equal or exceed:
 
<TABLE>
<S>                     <C>                     <C>                     <C>
/ / $100,000            / / $250,000            / / $500,000            / / $1,000,000
</TABLE>
 
   Each purchase will be made at the then reduced offering price applicable to
the amount checked above, as described in the Merrill Lynch Municipal
Intermediate Term Fund Prospectus.
 
   I agree to the terms and conditions of the Letter of Intention. I hereby
irrevocably constitute and appoint Merrill Lynch Funds Distributor, Inc., my
attorney, with full power of substitution, to surrender for redemption any or
all shares of Merrill Lynch Municipal Intermediate Term Fund held as security.
 
<TABLE>
<S>                                              <C>
By.............................................  ...............................................
              Signature of Owner                  Signature of Co-Owner (If registered in joint
                                                             names, both must sign)
</TABLE>
 
   In making purchases under this letter, the following are the related accounts
on which reduced offering prices are to apply:
 
<TABLE>
<S>                                              <C>
(1) Name.......................................  (2) Name.......................................
Account Number.................................  Account Number.................................
</TABLE>
 
- --------------------------------------------------------------------------------
5. FOR DEALER ONLY
<TABLE>
<S>                                                <C>
              Branch Office, Address, Stamp
 
                                                    We hereby authorize Merrill Lynch Funds Distributor, Inc. to
                                                    act as our agent in connection with transactions under
                                                    this authorization form and agree to notify the Distributor of
                                                    any purchases made under a Letter of Intention or Systematic
                                                    Withdrawal Plan. We guarantee the Shareholder's signature.

                                                     ...........................
                                                           Dealer Name and Address
 
                                                    By..........................
 
                                                           Authorized Signature of Dealer
 
This form, when completed, should be mailed to:
Merrill Lynch Municipal Intermediate Term Fund
 c/o Financial Data Services, Inc.                  Branch Code  F/C No.             F/C Last Name
 Transfer Agency Mutual Fund Operations
 P.O. Box 45289
 Jacksonville, Florida 32232-5289                   Dealer's Customer Account No.
</TABLE>
 
                                       44
<PAGE>
                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND--
                          AUTHORIZATION FORM (PART 2)
- --------------------------------------------------------------------------------
 
NOTE: THIS FORM IS REQUIRED TO APPLY FOR THE SYSTEMATIC WITHDRAWAL OR AUTOMATIC
INVESTMENT PLANS ONLY.
 
- --------------------------------------------------------------------------------
1. ACCOUNT REGISTRATION

Name of Owner...................................................................
                             Social Security Number
                       or Taxpayer Identification Number

Name of Co-Owner (if any).......................................................
                                       
Address................................      Account Number.....................
                                             (if existing account)
 ......................................
 
- --------------------------------------------------------------------------------
2. SYSTEMATIC WITHDRAWAL PLAN--CLASS A AND D SHARES ONLY (SEE TERMS AND
   CONDITIONS IN THE STATEMENT OF ADDITIONAL INFORMATION)
 
   Minimum Requirements: $10,000 for monthly disbursements, $5,000 for
quarterly, of / / Class A or / / Class D shares in Merrill Lynch Municipal
Intermediate Term Fund at cost or current offering price. Withdrawals to be made
either (check one) / / Monthly on the 24th day of each month, or / / Quarterly
on the 24th day of March, June, September and December. If the 24th falls on a
weekend or holiday, the next succeeding business day will be utilized. Begin
systematic withdrawal on ________ (month) or as soon as possible thereafter.
SPECIFY HOW YOU WOULD LIKE YOUR WITHDRAWAL PAID TO YOU (CHECK ONE): / / $_______
or / / ____% of the current value of
/ / Class A or / / Class D shares in the account.
SPECIFY WITHDRAWAL METHOD: / / check or / / direct deposit to bank account
(check one and complete part (a) or (b) below):
 
DRAW CHECKS PAYABLE (CHECK ONE)
 
(a) I hereby authorize payment by check
 
    / / as indicated in Item 1.
    / / to the order of.........................................................
 
Mail to (check one)
 
    / / the address indicated in Item 1.
    / / Name (please print).....................................................
 
Address.........................................................................
     ...........................................................................
Signature of Owner.........................................Date ................
Signature of Co-Owner (if any)..................................................
 
(b) I hereby authorize payment by direct deposit to my bank account and, if
necessary, debit entries and adjustments for any credit entries made to my
account. I agree that this authorization will remain in effect until I provide
written notification to Financial Data Services, Inc. amending or terminating
this service.
 
Specify type of account (check one): / / checking / / savings

Name on your Account............................................................

Bank Name.......................................................................

Bank Number ..........................  Account Number .........................

Bank Address....................................................................

 ...............................................................................

Signature of Depositor.....................................Date ................

Signature of Depositor..........................................................

(If joint account, both must sign)
 
NOTE: IF DIRECT DEPOSIT IS ELECTED, YOUR BLANK, UNSIGNED CHECK MARKED "VOID" OR
A DEPOSIT SLIP FROM YOUR SAVINGS ACCOUNT SHOULD ACCOMPANY THIS APPLICATION.
 
                                       45
<PAGE>
                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND--
                    AUTHORIZATION FORM (PART 2)--(CONTINUED)
- --------------------------------------------------------------------------------
 
3. APPLICATION FOR AUTOMATIC INVESTMENT PLAN
 
   I hereby request that Financial Data Services, Inc. draw an automated
clearing house ("ACH") debit on my checking account as described below each
month to purchase: (choose one)
<TABLE>
<S>                                           <C>                               <C>
                 / / Class A shares                / / Class B shares                / / Class D shares
</TABLE>
 
of Merrill Lynch Municipal Intermediate Term Fund subject to the terms set forth
below. In the event that I am not eligible to purchase Class A shares, I
understand that Class D shares will be purchased.
 
<TABLE>
<S>                                                                       <C>
                         FINANCIAL DATA SERVICES, INC.                       AUTHORIZATION TO HONOR ACH DEBITS
                                                                            DRAWN BY FINANCIAL DATA SERVICES, INC.
You are hereby authorized to draw an ACH debit each month on
my bank account forinvestment in Merrill Lynch Municipal
Intermediate Term Fund as indicated below:                                To............................Bank
                                                                                  (Investor's Bank)
 Amount of each ACH debit $...................................            Bank Address......................
 
                                                              
 Account No...................................................            City ............ State ...... Zip Code .......

Please date and invest ACH debits on the 20th of each month               As a convenience to me, I hereby request and authorize
                                                                          you to pay and charge to my account ACH debits
beginning ................ (month) or as soon                             drawn on my account by and payable to Financial Data
thereafter as possible.                                                   Services, Inc. I agree that your rights in respect
                                                                          to each such debit shall be the same as if it were
   I agree that you are drawing these ACH debits voluntarily              a check drawn on you and signed personally by me.
at my request and that you shall not be liable for                        This authority is to remain in effect until revoked
any loss arising from any delay in preparing or failure to                by me in writing. Until you receive such notice, you
prepare any such debit. If I change banks or desire to terminate or       shall be fully protected in honoring any such debit.
suspend this program, I agree to notify you promptly in writing.          any such debit. I further agree that if any such
I hereby authorize you to take any action to correct erroneous ACH        debit be dishonored, whether with or without
debits of my bank account or purchases of fund shares                     cause and whether intentionally or inadvertently, you
including liquidating shares of the Fund and crediting my bank account.   shall be under no liability.
I further agree that if a check or debit is not honored upon
presentation, Financial Data Services, Inc. is authorized to
discontinue immediately the Automatic Investment Plan and to
liquidate sufficient shares held in my account to offset the              ....................  .............................
purchase made with the dishonored debit.                                        Date             Signature of Depositor

                                                                          ....................  .............................
                                                                          Bank Account Number      Signature of Depositor
.....................  .............................                                             (If joint account, both must sign)
       Date              Signature of Depositor

                       .............................                      NOTE: IF AUTOMATIC INVESTMENT PLAN IS ELECTED, YOUR 
                         Signature of Depositor                           BLANK, UNSIGNED CHECK MARKED "VOID" SHOULD ACCOMPANY
                       (If joint account, both must                       THIS APPLICATION.
                                  sign)

</TABLE>


                                        46
<PAGE>
   
                                    MANAGER
                         Merrill Lynch Asset Management
                            Administrative Offices:
                             800 Scudders Mill Road
                             Plainsboro, New Jersey
                                Mailing Address:
                                 P.O. Box 9011
                        Princeton, New Jersey 08543-9011
                                  DISTRIBUTOR
                     Merrill Lynch Funds Distributor, Inc.
                            Administrative Offices:
                             800 Scudders Mill Road
                             Plainsboro, New Jersey
                                Mailing Address:
                                 P.O. Box 9011
                        Princeton, New Jersey 08543-9011
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                  P.O. Box 351
                          Boston, Massachusetts 02101
                                 TRANSFER AGENT
                         Financial Data Services, Inc.
                            Administrative Offices:
                     Transfer Agency Mutual Fund Operations
                           4800 Deer Lake Drive East
                        Jacksonville, Florida 32246-6484
                                Mailing Address:
                                  Attn: TAMFO
                                 P.O. Box 45289
                        Jacksonville, Florida 32232-5289
                              INDEPENDENT AUDITORS
                             Deloitte & Touche LLP
                                117 Campus Drive
                        Princeton, New Jersey 08540-6400
                                    COUNSEL
                                  Brown & Wood
                             One World Trade Center
                         New York, New York 10048-0557
    
<PAGE>
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS, OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, IN CONNECTION
WITH THE OFFER CONTAINED IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH
OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE TRUST, THE MANAGER OR THE DISTRIBUTOR. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFERING IN ANY STATE IN WHICH SUCH OFFERING MAY NOT
LAWFULLY BE MADE.
 
                              -------------------
 
                               TABLE OF CONTENTS
 
                                           PAGE
                                           ----
   
Fee Table...............................     2
Merrill Lynch Select PricingSM System...     3
Financial Highlights....................     8
Investment Objective and Policies.......    10
 Description of Municipal Bonds.........    12
 When-Issued Securities and Delayed
   Delivery Transactions................    15
 Call Rights............................    16
 Repurchase Agreements..................    16
 Financial Futures and Options
   Transactions.........................    17
 Investment Restrictions................    19
Management of the Trust.................    20
 Trustees...............................    20
 Management and Advisory Arrangements...    20
 Code of Ethics.........................    21
 Transfer Agency Services...............    22
Purchase of Shares......................    22
 Initial Sales Charge Alternatives--
   Class A and Class D Shares...........    24
 Deferred Sales Charge Alternative--
   Class B Shares.......................    26
 Distribution Plans.....................    29
 Limitations on the Payment of Deferred
   Sales Charges........................    30
Redemption of Shares....................    31
 Redemption.............................    31
 Repurchase.............................    32
 Reinstatement Privilege--Class A and
   Class D Shares.......................    33
Shareholder Services....................    33
Portfolio Transactions..................    35
Distributions and Taxes.................    36
 Distributions..........................    36
 Taxes..................................    37
Performance Data........................    39
Additional Information..................    40
 Determination of Net Asset Value.......    40
 Organization of the Trust..............    41
 Shareholder Reports....................    42
 Shareholder Inquiries..................    42
Authorization Form......................    43
    
 
   
                             Code # 10435-0295
    

[LOGO]
MERRILL LYNCH
MUNICIPAL INTERMEDIATE
TERM FUND

MERRILL LYNCH MUNICIPAL
SERIES TRUST

[ART WORK]

PROSPECTUS
   
February 27, 1995
    

Distributor:
Merrill Lynch
Funds Distributor, Inc.

This prospectus should be
retained for future reference.

<PAGE>
STATEMENT OF ADDITIONAL INFORMATION
 
                 MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND
                      MERRILL LYNCH MUNICIPAL SERIES TRUST
  P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011  .  PHONE NO. (609) 282-2800
 
                              -------------------
 
    Merrill Lynch Municipal Intermediate Term Fund (the "Fund"), formerly
Merrill Lynch Municipal Income Fund, is presently the only series of Merrill
Lynch Municipal Series Trust (the "Trust"), a diversified, open-end management
investment company organized as a Massachusetts business trust. The investment
objective of the Fund is to provide shareholders with as high a level of income
exempt from Federal income taxes as is consistent with its investment policies
and prudent investment management. There can be no assurance that the investment
objective of the Fund will be realized.
 
   
    Pursuant to the Merrill Lynch Select PricingSM System, the Fund offers four
classes of shares, each with a different combination of sales charges, ongoing
fees and other features. The Merrill Lynch Select PricingSM System permits 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.
    
 
                              -------------------
 
   
    This Statement of Additional Information of the Fund is not a prospectus and
should be read in conjunction with the prospectus of the Fund, dated February
27, 1995 (the "Prospectus"), which has been filed with the Securities and
Exchange Commission and can be obtained, without charge, by calling or by
writing the Trust at the above telephone number or address. This Statement of
Additional Information has been incorporated by reference into the Prospectus.
    
 
                              -------------------
 
                    MERRILL LYNCH ASSET MANAGEMENT--MANAGER
               MERRILL LYNCH FUNDS DISTRIBUTOR, INC.--DISTRIBUTOR
 
                              -------------------
 
   
   The date of this Statement of Additional Information is February 27, 1995.
    
<PAGE>
                       INVESTMENT OBJECTIVE AND POLICIES
 
    The investment objective of the Fund is to provide shareholders with as high
a level of income exempt from Federal income taxes as is consistent with its
investment policies and prudent investment management. The Fund seeks to achieve
its objective by investing primarily in a diversified portfolio of obligations
issued by or on behalf of states, territories and possessions of the United
States and the District of Columbia and their political subdivisions, agencies
and instrumentalities, the payments from which, in the opinion of bond counsel
to the issuer, are exempt in their entirety from Federal income taxes
("Municipal Bonds"). The Fund at all times, except during temporary defensive
periods, will maintain at least 80% of its net assets invested in Municipal
Bonds. At times, the Fund may seek to hedge its portfolio through the use of
futures and options transactions to reduce volatility in the net asset value of
Fund shares. Reference is made to "Investment Objective and Policies" in the
Prospectus for a discussion of the investment objective and policies of the
Fund.
 
    While there is no limit on the remaining maturity of individual Municipal
Bonds in the Fund's portfolio, depending on market conditions, an
intermediate-term dollar weighted average maturity of five to twelve years is
anticipated. Generally, as is the case with any investment grade fixed-income
obligations, Municipal Bonds with longer maturities tend to produce higher
yields. Under normal conditions, however, such yield-to-maturity increases tend
to decline in the longer maturities (i.e., the slope of the yield curve
flattens). At the same time, due to their longer exposure to interest rate risk,
prices of longer-term obligations are subject to greater market fluctuations as
a result of changes in interest rates. Based on the foregoing premises, the
Fund's manager, Merrill Lynch Asset Management, L.P. (the "Manager"), believes
that the yield and price volatility characteristics of an intermediate-term
portfolio generally offer an attractive trade-off between return and risk. There
may be market conditions, however, where an intermediate-term portfolio may be
less attractive due to the fact that the Municipal Bond yield curve changes from
time to time depending on supply and demand forces, monetary and tax policies
and investor expectations. As a result, there may be situations where
investments in individual Municipal Bonds with longer remaining maturities may
be more attractive than individual intermediate-term Municipal Bonds.
Nevertheless, the Fund anticipates maintaining a dollar weighted average
portfolio maturity of five to twelve years. In the event of any sustained market
conditions that make it less desirable to maintain such an intermediate-term
average portfolio maturity, the Trustees of the Trust may consider changing the
investment policies of the Fund with respect to average portfolio maturity.
 
   
    For the years ended October 31, 1993 and 1994 the rates of portfolio
turnover were 83.66% and 52.56%, respectively.
    
 
    Set forth below is a detailed description of the Municipal Bonds and
short-term taxable obligations (such obligations being referred to herein as
"Temporary Investments") in which the Fund may invest. A more complete
discussion concerning futures transactions is set forth under "Investment
Objective and Policies" in the Prospectus. Information with respect to ratings
assigned to tax-exempt obligations which the Fund may purchase is set forth in
the Appendix to this Statement of Additional Information.
 
DESCRIPTION OF MUNICIPAL BONDS
 
    Municipal Bonds include debt obligations issued to obtain funds for various
public purposes, including the construction of a wide range of public facilities
such as airports, bridges, highways,
 
                                       2
<PAGE>
housing, mass transportation, schools, streets and water and sewer works. Other
public purposes for which Municipal Bonds may be issued include the refunding of
outstanding obligations and the obtaining of funds for general operating
expenses or for loans to public or private institutions for the construction of
facilities such as educational, hospital and housing facilities. In addition,
certain types of private activity bonds or industrial development bonds may be
issued by or on behalf of public authorities to finance various privately owned
or operated facilities, including pollution control facilities, and certain
facilities for the local furnishing of water, gas, electricity or sewage or
solid waste disposal and other specialized facilities. Such obligations are
included within the term Municipal Bonds if the interest paid thereon is exempt,
in the opinion of bond counsel to the issuer, from Federal income tax. Other
types of private activity bonds or industrial development bonds, the proceeds of
which are used for the construction, equipment, repair or improvement of
privately owned or operated industrial or commercial facilities, may constitute
Municipal Bonds, although the current Federal tax laws place substantial
limitations on the size of such issues.
 
    The two principal classifications of Municipal Bonds are "general
obligation" bonds and "revenue" bonds. General obligation bonds are secured by
the issuer's pledge of faith, credit and taxing power for the payment of
principal and interest. The taxing power of any governmental entity may be
limited, however, by provisions of state constitutions or laws, and an entity's
credit will depend on many factors, including potential erosion of the tax base
due to population declines, natural disasters, declines in the state's
industrial base, the inability to attract new industries, economic limits on the
ability to tax without eroding the tax base, state legislative proposals or
voter initiatives to limit ad valorem real property taxes, and the extent to
which the entity relies on Federal or state aid, access to capital markets or
other factors beyond the state's or entity's control.
 
    Revenue bonds are payable only from the revenues derived from a particular
facility or class of facilities or, in some cases, from the proceeds of a
special excise tax or other specific revenue source such as payments from the
user of the facility being financed. The Fund also may invest in "moral
obligation" bonds, which normally are issued by special purpose public
authorities. If an issuer of moral obligation bonds is unable to meet its
obligations, the repayment of such bonds becomes a moral commitment but not a
legal obligation of the state or municipality in question.
 
    Private activity bonds issued after April 15, 1986 and industrial
development bonds are in most cases revenue bonds and generally do not
constitute the pledge of the credit or taxing power of the issuer of such bonds.
Generally, the payment of the principal of and interest on such bonds depends
solely on the ability of the user of the facilities financed by the bonds to
meet its financial obligations and the pledge, if any, of real and personal
property so financed as security for such payment unless a line of credit, bond
insurance or other security is furnished.
 
    The tax-exempt money market securities in which the Fund may invest may
include municipal notes, municipal commercial paper, Municipal Bonds with a
remaining maturity of less than one year, variable rate demand obligations
("VRDOs") and participation interests therein ("Participating VRDOs"). Municipal
notes include tax anticipation notes, bond anticipation notes, revenue
anticipation notes and project notes. Anticipation notes are sold as interim
financing in anticipation of tax collection, bond sales, government grants or
revenue receipts. Municipal commercial paper refers to short-term unsecured
promissory notes generally issued to finance short-term credit needs.
 
                                       3
<PAGE>
    VRDOs are tax-exempt obligations which contain a floating or variable
interest rate adjustment formula and an unconditional right of demand on the
part of the holder thereof to receive payment of the unpaid principal balance
plus accrued interest on a short notice period not to exceed seven days. There
is, however, the possibility that because of default or insolvency the demand
feature of VRDOs and Participating VRDOs may not be honored. The interest rates
are adjustable at intervals ranging from daily to up to six months to some
prevailing market rate for similar investments, such adjustment formula being
calculated to maintain the market value of the VRDOs at approximately the par
value of the VRDOs on the adjustment date. The adjustments typically are set at
a rate determined by the remarketing agent or based upon the prime rate of a
bank or some other appropriate interest rate adjustment index. The Fund may
invest in all types of tax-exempt instruments currently outstanding or to be
issued in the future which satisfy the maturity and quality standards of the
Fund.
 
    The Fund also may invest in VRDOs in the form of Participating VRDOs in
variable rate tax-exempt obligations held by a financial institution, typically
a commercial bank. Participating VRDOs provide the Fund with a specified
undivided interest (up to 100%) of the underlying obligation and the right to
demand payment of the unpaid principal balance plus accrued interest on the
Participating VRDOs from the financial institution on a specified number of
days' notice, not to exceed seven days. In addition, each Participating VRDO is
backed by an irrevocable letter of credit or guaranty of the financial
institution. The Fund would have an undivided interest in the underlying
obligation and thus participate on the same basis as the financial institution
in such obligation except that the financial institution typically retains fees
out of the interest paid on the obligation for servicing the obligation,
providing the letter of credit, if any, and issuing the repurchase commitment.
The Fund has been advised by its counsel that the Fund should be entitled to
treat the income received on Participating VRDOs as interest from tax-exempt
obligations.
 
    VRDOs that contain an unconditional right of demand to receive payment of
the unpaid principal balance plus accrued interest on a notice period exceeding
seven days may be deemed to be illiquid securities. A VRDO with a demand notice
period exceeding seven days therefore will be subject to the Fund's restriction
on illiquid investments unless, in the judgment of the Trustees, such VRDO is
liquid. The Trustees may adopt guidelines and delegate to the Manager the daily
function of determining and monitoring liquidity of such VRDOs. The Trustees,
however, will retain sufficient oversight and be ultimately responsible for such
determinations.
 
   
    The Fund may invest up to 20% of its total assets in Municipal Bonds which
are rated below Baa by Moody's Investors Service, Inc. ("Moody's") or below BBB
by Standard & Poor's Ratings Group ("Standard & Poor's") or Fitch Investors
Service, Inc. ("Fitch") or which, in the Manager's judgment, possess similar
credit characteristics ("high-yield securities"). See Appendix--"Ratings of
Municipal Bonds"--for additional information regarding ratings of debt
securities. The Manager considers the ratings assigned by Standard & Poor's,
Moody's or Fitch as one of several factors in its independent credit analysis of
issuers.
    
 
    High-yield securities are considered by Standard & Poor's, Moody's and Fitch
to have varying degrees of speculative characteristics. Consequently, although
high-yield securities can be expected to provide higher yields, such securities
may be subject to greater market price fluctuations and risk of loss of
principal than lower-yielding, higher-rated debt securities. Investments in
high-yield securities will be made only when, in the judgment of the Manager,
such securities provide attractive total return
 
                                       4
<PAGE>
potential relative to the risk of such securities, as compared to higher quality
debt securities. The Fund generally will not invest in debt securities in the
lowest rating categories (those rated CC or lower by Standard & Poor's or Fitch
or Ca or lower by Moody's) unless the Manager believes that the financial
condition of the issuer or the protection afforded the particular securities is
stronger than would otherwise be indicated by such low ratings. The Fund does
not intend to purchase debt securities that are in default or which the Manager
believes will be in default.
 
    Issuers of high-yield securities may be highly leveraged and may not have
available to them more traditional methods of financing. Therefore, the risks
associated with acquiring the securities of such issuers generally are greater
than is the case with higher-rated securities. For example, during an economic
downturn or a sustained period of rising interest rates, issuers of high-yield
securities may be more likely to experience financial stress, especially if such
issuers are highly leveraged. During periods of economic recession, such issuers
may not have sufficient revenues to meet their interest payment obligations. The
issuer's ability to service its debt obligations also may be adversely affected
by specific issuer developments, or the issuer's inability to meet specific
projected business forecasts, or the unavailability of additional financing. The
risk of loss due to default by the issuer is significantly greater for the
holders of high-yield securities because such securities may be unsecured and
may be subordinated to other creditors of the issuer.
 
    High-yield securities frequently have call or redemption features that would
permit an issuer to repurchase the security from the Fund. If a call were
exercised by the issuer during a period of declining interest rates, the Fund
likely would have to replace such called security with a lower yielding
security, thus decreasing the net investment income to the Fund and dividends to
shareholders.
 
    The Fund may have difficulty disposing of certain high-yield securities
because there may be a thin trading market for such securities. Because not all
dealers maintain markets in all high-yield securities, there is no established
secondary market for many of these securities, and the Fund anticipates that
such securities could be sold only to a limited number of dealers or
institutional investors. To the extent that a secondary trading market for
high-yield securities does exist, it generally is not as liquid as the secondary
market for higher rated securities. Reduced secondary market liquidity may have
an adverse impact on market price and the Fund's ability to dispose of
particular issues when necessary to meet the Fund's liquidity needs or in
response to a specific economic event such as a deterioration in the
creditworthiness of the issuer. Reduced secondary market liquidity for certain
securities also may make it more difficult for the Fund to obtain accurate
market quotations for purposes of valuing the Fund's portfolio. Market
quotations generally are available on many high-yield securities only from a
limited number of dealers and may not necessarily represent firm bids of such
dealers or prices for actual sales.
 
    It is expected that a significant portion of the high-yield securities
acquired by the Fund will be purchased upon issuance, which may involve special
risks because the securities so acquired are new issues. In such instances the
Fund may be a substantial purchaser of the issue and therefore have the
opportunity to participate in structuring the terms of the offering. Although
this may enable the Fund to seek to protect itself against certain of such
risks, the considerations discussed herein would nevertheless remain applicable.
 
    Adverse publicity and investor perceptions, which may not be based on
fundamental analysis, also may decrease the value and liquidity of high-yield
securities, particularly in a thinly traded market.
 
                                       5
<PAGE>
Factors adversely affecting the market value of high-yield securities are likely
to affect adversely the Fund's net asset value. In addition, the Fund may incur
additional expenses to the extent that it is required to seek recovery upon a
default on a portfolio holding or participate in the restructuring of the
obligation.
 
   
    Yields on Municipal Bonds are dependent on a variety of factors, including
the general condition of the issuer, the general conditions of the money market
and of the municipal bond market, the size of a particular offering, the
maturity of the obligation, and the rating of the issue. The ability of the Fund
to achieve its investment objective also is dependent on the continuing ability
of the issuers of the bonds in which the Fund invests to meet their obligations
for the payment of interest and principal when due. There are variations in the
risks involved in holding Municipal Bonds, both within a particular
classification and between classifications, depending on numerous factors.
Furthermore, the rights of owners of Municipal Bonds and the obligations of the
issuer of such Municipal Bonds may be subject to applicable bankruptcy,
insolvency and similar laws and court decisions affecting the rights of
creditors generally.
    
 
    Municipal Bonds at times may be purchased or sold on a delayed delivery
basis or a when-issued basis. These transactions arise when securities are
purchased or sold by the Fund with payment and delivery taking place in the
future, often a month or more after the purchase. The payment obligations and
the interest rate are each fixed at the time the buyer enters into the
commitment. The Fund only will make commitments to purchase such securities with
the intention of actually acquiring the securities, but the Fund may sell these
securities prior to the settlement date if it is deemed advisable. Purchasing
Municipal Bonds on a when-issued basis involves the risk that the yields
available in the market when the delivery takes place actually may be higher
than those obtained in the transaction itself; if yields so increase, the value
of the when-issued obligation generally will decrease. The Fund will maintain a
separate account at its custodian bank consisting of cash or liquid Municipal
Bonds (valued on a daily basis) equal at all times to the amount of the
when-issued commitment.
 
DESCRIPTION OF TEMPORARY INVESTMENTS
 
    As Temporary Investments, the Fund may invest in short-term taxable
securities subject to the limitations set forth under "Investment Objective and
Policies" in the Prospectus. The taxable money market securities in which the
Fund may invest as Temporary Investments consist of U.S. Government securities,
U.S. Government agency securities, domestic bank or savings institution
certificates of deposit and bankers' acceptances, short-term corporate debt
securities such as commercial paper, and repurchase agreements. These Temporary
Investments must have a remaining maturity not in excess of one year from the
date of purchase.
 
   
    The Trust has established the following standards with respect to money
market securities and VRDOs in which the Fund invests. Commercial paper
investments at the time of purchase must be rated A-1 through A-3 by Standard &
Poor's, F-1 through F-3 by Fitch, or Prime-1 through Prime-3 by Moody's or, if
not rated, issued by companies having an outstanding debt issue rated at least A
by Standard & Poor's, Moody's or Fitch. Investments in corporate bonds and
debentures (which must have maturities at the date of purchase of one year or
less) must be rated at the time of purchase at least A by Standard & Poor's,
Moody's or Fitch. Notes and VRDOs at the time of purchase must be rated SP-1/A-1
through SP-2/A-3 by Standard & Poor's, MIG-1/VMIG-1 through MIG-4/VMIG-4 by
    
 
                                       6
<PAGE>
Moody's or F-1 through F-3 by Fitch. Temporary Investments, if not rated, must
be, in the opinion of the Manager, of comparable quality to securities rated in
the above rating categories. The Fund may not invest in any security issued by a
commercial bank or a savings institution unless the bank or institution is
organized and operating in the United States, has total assets of at least one
billion dollars and is a member of the Federal Deposit Insurance Corporation
("FDIC"), except that up to 10% of the Fund's total assets may be invested in
certificates of deposit of smaller institutions if such certificates are fully
insured by the FDIC.
 
REPURCHASE AGREEMENTS
 
   
    As Temporary Investments, the Fund may invest in securities pursuant to
repurchase agreements. Repurchase agreements may be entered into only with a
member bank of the Federal Reserve System or primary dealer or an affiliate
thereof in U.S. Government securities. Under such agreements, the bank or
primary dealer or an affiliate thereof agrees, on entering into the contract, to
repurchase the security at a mutually agreed upon time and price, thereby
determining the yield during the term of the agreement. This results in a fixed
rate of return insulated from market fluctuations during such period. In the
case of repurchase agreements, the prices at which the trades are conducted do
not reflect accrued interest on the underlying obligation. Such agreements
usually cover short periods, such as under one week. Repurchase agreements may
be construed to be collateralized loans by the purchaser to the seller secured
by the securities transferred to the purchaser. In the case of a repurchase
agreement, the Fund will require the seller to provide additional collateral if
the market value of the securities falls below the repurchase price at any time
during the term of the repurchase agreement. In the event of default by the
seller under a repurchase agreement construed to be a collateralized loan, the
underlying securities are not owned by the Fund but only constitute collateral
for the seller's obligation to pay the repurchase price. Therefore, the Fund may
suffer time delays and incur costs or possible losses in connection with the
disposition of the collateral. In the event of a default under such a repurchase
agreement, instead of the contractual fixed rate of return, the rate of return
to the Fund shall be dependent on intervening fluctuations of the market value
of such security and the accrued interest on the security. In such event, the
Fund would have rights against the seller for breach of contract with respect to
any losses arising from market fluctuations following the failure of the seller
to perform. The Fund may not invest in repurchase agreements maturing in more
than seven days if such investments, together with all other illiquid
investments, would exceed 15% of the Fund's net assets (however, in accordance
with the provisions of certain state laws, the Fund currently will not invest in
excess of 10% of its net assets in illiquid securities).
    
 
    In general, for Federal income tax purposes, repurchase agreements are
treated as collateralized loans secured by the securities "sold". Therefore,
amounts earned under such agreements will not be considered tax-exempt interest.
 
FINANCIAL FUTURES AND OPTIONS TRANSACTIONS
 
    Reference is made to the discussion concerning futures and options
transactions under "Investment Objective and Policies" in the Prospectus. Set
forth below is additional information concerning these transactions.
 
                                       7
<PAGE>
    As described in the Prospectus, the Fund may purchase and sell financial
futures contracts ("financial futures contracts") or options thereon to hedge
its portfolio of Municipal Bonds against declines in the value of such
securities and to hedge against increases in the cost of securities the Fund
intends to purchase. However, any transactions involving financial futures
contracts or options (or puts and calls associated therewith) will be in
accordance with the Fund's investment policies and limitations. See "Investment
Objective and Policies--Investment Restrictions" in the Prospectus. To hedge its
portfolio, the Fund may take an investment position in a financial futures
contract or the related option which will move in the opposite direction from
the portfolio position being hedged. While the Fund's use of hedging strategies
is intended to moderate capital changes in portfolio holdings and thereby reduce
volatility of the net asset value of Fund shares, the Fund anticipates that its
net asset value will fluctuate. Set forth below is information concerning
futures and options transactions.
 
    Description of Financial Futures Contracts. A financial futures contract is
an agreement between two parties to buy and sell a security or, in the case of
an index-based financial futures contract, to make and accept a cash settlement
for a set price on a future date. A majority of transactions in financial
futures contracts, however, do not result in the actual delivery of the
underlying instrument or cash settlement, but are settled through liquidation,
i.e., by entering into an offsetting transaction. Financial futures contracts
have been designed by boards of trade which have been designated "contract
markets" by the Commodity Futures Trading Commission (the "CFTC").
 
    The purchase or sale of a financial futures contract differs from the
purchase or sale of a security in that no price or premium is paid or received.
Instead, an amount of cash or securities acceptable to the broker and the
relevant contract market, which varies, but is generally about 5% of the
contract amount, must be deposited with the broker. This amount is known as
"initial margin" and represents a "good faith" deposit assuring the performance
of both the purchaser and seller under the financial futures contract.
Subsequent payments to and from the broker, called "variation margin", are
required to be made on a daily basis as the price of the financial futures
contract fluctuates making the long and short positions in the financial futures
contract more or less valuable, a process known as "mark to the market". At any
time prior to the settlement date of the financial futures contract, the
position may be closed out by taking an opposite position which will operate to
terminate the position in the financial futures contract. A final determination
of variation margin is then made, additional cash is required to be paid to or
released by the broker and the purchaser realizes a loss or gain. In addition, a
nominal commission is paid on each completed sale transaction.
 
    The Fund deals in financial futures contracts based on a long-term municipal
bond index developed by the Chicago Board of Trade (the "CBT") and The Bond
Buyer (the "Municipal Bond Index"). Financial futures contracts based on the
Municipal Bond Index began trading on June 11, 1985. The Municipal Bond Index is
comprised of 40 tax-exempt municipal revenue bonds and general obligation bonds.
Each bond included in the Municipal Bond Index must be rated A or higher by
Moody's, Standard & Poor's or Fitch and must have a remaining maturity of 19
years or more. Twice a month new issues satisfying the eligibility requirements
are added to, and an equal number of old issues are deleted from, the Municipal
Bond Index. The value of the Municipal Bond Index is computed daily according to
a formula based on the price of each bond in the Municipal Bond Index, as
evaluated by six dealer-to-dealer brokers.
 
                                       8
<PAGE>
    The Municipal Bond Index financial futures contract is traded only on the
CBT. Like other contract markets, the CBT assures performance under financial
futures contracts through a clearing corporation, a nonprofit organization
managed by the exchange membership which is also responsible for handling daily
accounting of deposits or withdrawals of margin.
 
    As described in the Prospectus, the Fund may purchase and sell financial
futures contracts on U.S. Government securities as a hedge against adverse
changes in interest rates as described below. With respect to U.S. Government
securities, currently there are financial futures contracts based on long-term
U.S. Treasury bonds, U.S. Treasury notes, Government National Mortgage
Association ("GNMA") Certificates and three-month U.S. Treasury bills. The Fund
may purchase and write call and put options on financial futures contracts on
U.S. Government securities in connection with its hedging strategies.
 
    Subject to policies adopted by the Trustees, the Fund also may engage in
other financial futures contract transactions such as financial futures
contracts on other municipal bond indexes which may become available if the
Manager and the Trustees of the Trust should determine that there is normally a
sufficient correlation between the prices of such financial futures contracts
and the Municipal Bonds in which the Fund invests to make such hedging
appropriate.
 
    Futures Strategies. The Fund may sell a financial futures contract (i.e.,
assume a short position) in anticipation of a decline in the value of its
investments in Municipal Bonds resulting from an increase in interest rates or
otherwise. The risk of decline could be reduced without employing futures as a
hedge by selling such Municipal Bonds and either reinvesting the proceeds in
securities with shorter maturities or by holding assets in cash. This strategy,
however, entails increased transaction costs in the form of dealer spreads and
typically would reduce the average yield of the Fund's portfolio securities as a
result of the shortening of maturities. The sale of financial futures contracts
provides an alternative means of hedging against declines in the value of its
investments in Municipal Bonds. As such values decline, the value of the Fund's
positions in the financial futures contracts will tend to increase, thus
offsetting all or a portion of the depreciation in the market value of the
Fund's Municipal Bond investments which are being hedged. While the Fund will
incur commission expenses in selling and closing out futures positions,
commissions on futures transactions are lower than transaction costs incurred in
the purchase and sale of Municipal Bonds. In addition, the ability of the Fund
to trade in the standardized contracts available in the futures markets may
offer a more effective defensive position than a program to reduce the average
maturity of the portfolio securities due to the unique and varied credit and
technical characteristics of the municipal debt instruments available to the
Fund. Employing futures as a hedge also may permit the Fund to assume a
defensive posture without reducing the yield on its investments beyond any
amounts required to engage in futures trading.
 
    When the Fund intends to purchase Municipal Bonds, the Fund may purchase
financial futures contracts as a hedge against any increase in the cost of
Municipal Bonds, resulting from an increase in interest rates or otherwise, that
may occur before such purchases can be effected. Subject to the degree of
correlation between Municipal Bonds and the financial futures contracts,
subsequent increases in the cost of Municipal Bonds should be reflected in the
value of the futures held by the Fund. As such purchases are made, an equivalent
amount of financial futures contracts will be closed out. Due to
 
                                       9
<PAGE>
changing market conditions and interest rate forecasts, however, a futures
position may be terminated without a corresponding purchase of portfolio
securities.
 
    Call Options on Financial Futures Contracts. The Fund also may purchase and
sell exchange-traded call and put options on financial futures contracts on U.S.
Government securities. The purchase of a call option on a financial futures
contract is analogous to the purchase of a call option on an individual
security. Depending on the pricing of the option compared to either the
financial futures contract upon which it is based, or upon the price of the
underlying debt securities, it may or may not be less risky than ownership of
the financial futures contract or underlying debt securities. Like the purchase
of a financial futures contract, the Fund will purchase a call option on a
financial futures contract to hedge against a market advance when the Fund is
not fully invested.
 
    The writing of a call option on a financial futures contract constitutes a
partial hedge against declining prices of the securities which are deliverable
upon exercise of the financial futures contract. If the futures price at
expiration is below the exercise price, the Fund will retain the full amount of
the option premium which provides a partial hedge against any decline that may
have occurred in the Fund's portfolio holdings.
 
    Put Options on Financial Futures Contracts. The purchase of a put option on
a financial futures contract is analogous to the purchase of a protective put
option on a portfolio security. The Fund will purchase a put option on a
financial futures contract to hedge the Fund's portfolio against the risk of
rising interest rates.
 
    The writing of a put option on a financial futures contract constitutes a
partial hedge against increasing prices of the securities which are deliverable
upon exercise of the financial futures contract. If the futures price at
expiration is higher than the exercise price, the Fund will retain the full
amount of the option premium which provides a partial hedge against any increase
in the price of Municipal Bonds which the Fund intends to purchase.
 
    The writer of an option on a financial futures contract is required to
deposit initial and variation margin pursuant to requirements similar to those
applicable to futures contracts. Premiums received from the writing of an option
will be included in initial margin. The writing of an option on a financial
futures contract involves risks similar to those relating to financial futures
contracts.
 
                              -------------------
 
    The Trust has received an order from the Securities and Exchange Commission
(the "Commission") exempting it from the provisions of Section 17(f) and Section
18(f) of the Investment Company Act of 1940, as amended (the "Investment Company
Act") in connection with its strategy of investing in futures contracts. Section
17(f) relates to the custody of securities and other assets of an investment
company and may be deemed to prohibit certain arrangements between the Fund and
commodities brokers with respect to initial and variation margin. Section 18(f)
of the Investment Company Act prohibits an open-end investment company such as
the Trust from issuing a "senior security" other than a borrowing from a bank.
The staff of the Commission has in the past indicated that a financial futures
contract may be a "senior security" under the Investment Company Act.
 
                                       10
<PAGE>
    Restrictions on the Use of Futures and Options Transactions. Under
regulations of the CFTC, the futures trading activities described herein will
not result in the Fund being deemed a "commodity pool," as defined under such
regulations, provided that the Fund adheres to certain restrictions. In
particular, the Fund may purchase and sell financial futures contracts and
options thereon (i) for bona fide hedging purposes and (ii) for non-hedging
purposes, if the aggregate initial margins and premiums required to establish
positions in such contracts and options do not exceed 5% of the liquidation
value of the Fund's portfolio assets after taking into account unrealized
profits and unrealized losses on any such transactions. (However, the Fund
intends to engage in futures and options transactions only for hedging
purposes.) Margin deposits may consist of cash or securities acceptable to the
broker and the relevant contract market.
 
    When the Fund purchases financial futures contracts or a call option or
writes a put option, an amount of cash, cash equivalents or short-term
high-grade fixed income securities will be deposited in a segregated account
with the Fund's custodian so that the amount so segregated, plus the amount of
initial and variation margin held in the account of its broker, equals the
market value of the financial futures contract, thereby ensuring that the use of
such futures is unleveraged.
 
    Risk Factors in Futures and Options Transactions. Investment in financial
futures contracts involves the risk of imperfect correlation between movements
in the price of the financial futures contract and the price of the security
being hedged. The hedge will not be fully effective when there is imperfect
correlation between the movements in the prices of two financial instruments.
For example, if the price of the financial futures contract moves more than the
price of the hedged security, the Fund will experience either a loss or gain on
the financial futures contract which is not completely offset by movements in
the price of the hedged securities. To compensate for imperfect correlations,
the Fund may purchase or sell financial futures contracts in a greater dollar
amount than the hedged securities if the volatility of the hedged securities is
historically greater than the volatility of the financial futures contracts.
Conversely, the Fund may purchase or sell fewer financial futures contracts if
the volatility to the price of the hedged securities is historically less than
that of the financial futures contracts.
 
    The particular municipal bonds comprising the index underlying the Municipal
Bond Index financial futures contract may vary from the bonds held by the Fund.
As a result, the Fund's ability to hedge effectively all or a portion of the
value of its Municipal Bonds through the use of such financial futures contracts
will depend in part on the degree to which price movements in the index
underlying the financial futures contract correlate with price movements of the
Municipal Bonds held by the Fund. The correlation may be affected by disparities
in the average maturity, ratings, geographic mix or structure of the Fund's
investments as compared to those comprising the Municipal Bond Index, and
general economic or political factors. In addition, the correlation between
movements in the value of the Municipal Bond Index may be subject to change over
time, as additions to and deletions from the Municipal Bond Index alter its
structure. The correlation between financial futures contracts on U.S.
Government securities and the Municipal Bonds held by the Fund may be adversely
affected by similar factors and the risk of imperfect correlation between
movements in the prices of such financial futures contracts and the prices of
Municipal Bonds held by the Fund may be greater.
 
    The Fund expects to liquidate a majority of the financial futures contracts
it enters into through offsetting transactions on the applicable contract
market. There can be no assurance, however, that a
 
                                       11
<PAGE>
liquid secondary market will exist for any particular financial futures contract
at any specific time. Thus, it may not be possible to close out a financial
futures contract position. In the event of adverse price movements, the Fund
would continue to be required to make daily cash payments of variation margin.
In such situations, if the Fund has insufficient cash, it may be required to
sell portfolio securities to meet daily variation margin requirements at a time
when it may be disadvantageous to do so. The inability to close out financial
futures contract positions also could have an adverse impact on the Fund's
ability to hedge effectively its investments in Municipal Bonds. The Fund will
enter into a financial futures contract position only if, in the judgment of the
Manager, there appears to be an actively traded secondary market for such
financial futures contracts.
 
    The successful use of transactions in futures and related options also
depends on the ability of the Manager to forecast correctly the direction and
extent of interest rate movements within a given time frame. To the extent
interest rates remain stable during the period in which a financial futures
contract or option is held by the Fund or such rates move in a direction
opposite to that anticipated, the Fund may realize a loss on the hedging
transaction which is not fully or partially offset by an increase in the value
of portfolio securities. As a result, the Fund's total return for such period
may be less than if it had not engaged in the hedging transaction.
 
    Because of low initial margin deposits made upon the opening of a financial
futures contract position, futures transactions involve substantial leverage. As
a result, relatively small movements in the price of the financial futures
contract can result in substantial unrealized gains or losses. Because the Fund
will engage in the purchase and sale of financial futures contracts solely for
hedging purposes, however, any losses incurred in connection therewith should,
if the hedging strategy is successful, be offset in whole or in part by
increases in the value of securities held by the Fund or decreases in the price
of securities the Fund intends to acquire.
 
    The amount of risk the Fund assumes when it purchases an option on a
financial futures contract is the premium paid for the option plus related
transaction costs. In addition to the correlation risks discussed above, the
purchase of an option also entails the risk that changes in the value of the
underlying financial futures contract will not be fully reflected in the value
of the option purchased.
 
   
    Municipal Bond Index financial futures contracts were approved for trading
in 1986. Trading in such financial futures contracts may tend to be less liquid
than that in other financial futures contracts. The trading of financial futures
contracts also is subject to certain market risks, such as inadequate trading
activity, which could at times make it difficult or impossible to liquidate
existing positions.
    
 
                            INVESTMENT RESTRICTIONS
 
   
    In addition to the investment restrictions set forth in the Prospectus, the
Trust has adopted a number of restrictions and policies relating to the
investment of its assets and its activities which are fundamental policies and
may not be changed without the approval of the holders of a majority of the
Fund's outstanding voting securities (which for this purpose and under the
Investment Company Act means the lesser of (i) 67% of the Fund's shares present
at a meeting at which more than 50% of the
    
 
                                       12
<PAGE>
outstanding shares of the Fund are represented or (ii) more than 50% of the
Fund's outstanding shares). The Fund may not:
 
        1. Make any investment inconsistent with the Fund's classification as a
    diversified company under the Investment Company Act.
 
        2. Invest more than 25% of its assets, taken at market value, in the
    securities of issuers in any particular industry (excluding the U.S.
    Government and its agencies and instrumentalities).
 
        3. Make investments for the purpose of exercising control or management.
 
        4. Purchase or sell real estate, except that, to the extent permitted by
    applicable law, the Fund may invest in securities directly or indirectly
    secured by real estate or interests therein or issued by companies which
    invest in real estate or interests therein.
 
        5. Make loans to other persons, except that the acquisition of bonds,
    debentures or other corporate debt securities and investment in government
    obligations, commercial paper, pass-through instruments, certificates of
    deposit, bankers acceptances, repurchase agreements or any similar
    instruments shall not be deemed to be the making of a loan, and except
    further that the Fund may lend its portfolio securities, provided that the
    lending of portfolio securities may be made only in accordance with
    applicable law and the guidelines set forth in the Fund's Prospectus and
    Statement of Additional Information, as they may be amended from time to
    time.
 
        6. Issue senior securities to the extent such issuance would violate
    applicable law.
 
        7. Borrow money, except that (i) the Fund may borrow from banks (as
    defined in the Investment Company Act) in amounts up to 33 1/3% of its total
    assets (including the amount borrowed), (ii) the Fund may borrow up to an
    additional 5% of its total assets for temporary purposes, (iii) the Fund may
    obtain such short-term credit as may be necessary for the clearance of
    purchases and sales of portfolio securities and (iv) the Fund may purchase
    securities on margin to the extent permitted by applicable law. The Fund may
    not pledge its assets other than to secure such borrowings or, to the extent
    permitted by the Fund's investment policies as set forth in its Prospectus
    and Statement of Additional Information, as they may be amended from time to
    time, in connection with hedging transactions, short sales, when-issued and
    forward commitment transactions and similar investment strategies.
 
        8. Underwrite securities of other issuers except insofar as the Fund
    technically may be deemed an underwriter under the Securities Act of 1933,
    as amended (the "Securities Act") in selling portfolio securities.
 
        9. Purchase or sell commodities or contracts on commodities, except to
    the extent that the Fund may do so in accordance with applicable law and the
    Fund's Prospectus and Statement of Additional Information, as they may be
    amended from time to time, and without registering as a commodity pool
    operator under the Commodity Exchange Act.
 
                                       13
<PAGE>
    Under the proposed non-fundamental investment restrictions, the Fund may
not:
 
        a. Purchase securities of other investment companies, except to the
    extent such purchases are permitted by applicable law.
 
        b. Make short sales of securities or maintain a short position, except
    to the extent permitted by applicable law. The Fund currently does not
    intend to engage in short sales, except short sales "against the box".
 
        c. Invest in securities which cannot be readily resold because of legal
    or contractual restrictions or which cannot otherwise be marketed, redeemed
    or put to the issuer or a third party, if at the time of acquisition more
    than 15% of its total assets would be invested in such securities. This
    restriction shall not apply to securities which mature within seven days or
    securities which the Board of Trustees of the Fund has otherwise determined
    to be liquid pursuant to applicable law. Notwithstanding the 15% limitation
    herein, to the extent the laws of any state in which the Fund's shares are
    registered or qualified for sale require a lower limitation, the Fund will
    observe such limitation. As of the date hereof, therefore, the Fund will not
    invest more than 10% of its total assets in securities which are subject to
    this investment restriction (c).
 
        d. Invest in warrants if, at the time of acquisition, its investments in
    warrants, valued at the lower of cost or market value, would exceed 5% of
    the Fund's net assets; included within such limitation, but not to exceed 2%
    of the Fund's net assets, are warrants which are not listed on the New York
    Stock Exchange or American Stock Exchange or a major foreign exchange. For
    purposes of this restriction, warrants acquired by the Fund in units or
    attached to securities may be deemed to be without value.
 
        e. Invest in securities of companies having a record, together with
    predecessors, of less than three years of continuous operation, if more than
    5% of the Fund's total assets would be invested in such securities. This
    restriction shall not apply to mortgage-backed securities, asset-backed
    securities or obligations issued or guaranteed by the U.S. Government, its
    agencies or instrumentalities.
 
   
        f. Purchase or retain the securities of any issuer, if those individual
    officers and trustees of the Trust, the officers and general partner of the
    Manager, the directors of such general partner or the officers and directors
    of any subsidiary thereof each owning beneficially more than one-half of one
    percent of the securities of such issuer own in the aggregate more than 5%
    of the securities of such issuer.
    
 
        g. Invest in real estate limited partnership interests or interests in
    oil, gas or other mineral leases, or exploration or development programs,
    except that the Fund may invest in securities issued by companies that
    engage in oil, gas or other mineral exploration or development activities.
 
        h. Write, purchase or sell puts, calls, straddles, spreads or
    combinations thereof, except to the extent permitted in the Fund's
    Prospectus and Statement of Additional Information, as they may be amended
    from time to time.
 
                                       14
<PAGE>
   
        i. Notwithstanding fundamental investment restriction (7) above, borrow
    amounts in excess of 20% of its total assets taken at market value
    (including the amount borrowed), and then only from banks as a temporary
    measure for extraordinary or emergency purposes.
    
 
   
    In addition, to comply with tax requirements for qualification as a
"regulated investment company", the Fund's investments will be limited in a
manner such that, at the close of each quarter of each fiscal year, (a) no more
than 25% of the Fund's total assets are invested in the securities of a single
issuer, and (b) with regard to at least 50% of the Fund's total assets, no more
than 5% of its total assets are invested in the securities of a single issuer.
[For purposes of this restriction, the Fund will regard each state and each
political subdivision, agency or instrumentality of such state and each
multi-state agency of which such state is a member and each public authority
which issues securities on behalf of a private entity as a separate issuer,
except that if the security is backed only by the assets and revenues of a
non-government entity then the entity with the ultimate responsibility for the
payment of interest and principal may be regarded as the sole issuer.] These
tax-related limitations may be changed by the Trustees of the Trust to the
extent necessary to comply with changes to the Federal tax requirements.
    
 
                              -------------------
 
    Because of the affiliation of Merrill Lynch, Pierce, Fenner & Smith
Incorporated ("Merrill Lynch") with the Trust, the Trust is prohibited from
engaging in certain transactions involving such firm or its affiliates except
for brokerage transactions permitted under the Investment Company Act involving
only usual and customary commissions or transactions pursuant to an exemptive
order under the Investment Company Act. See "Portfolio Transactions". Without
such an exemptive order, the Trust is prohibited from engaging in portfolio
transactions with Merrill Lynch or its affiliates acting as principal and from
purchasing securities in public offerings which are not registered under the
Securities Act or are not municipal securities, as defined in the Securities
Exchange Act of 1934, in which such firm or any of its affiliates participates
as an underwriter or dealer.
 
                            MANAGEMENT OF THE TRUST
 
TRUSTEES AND OFFICERS
 
   
    The Trustees and executive officers of the Trust and their ages and their
principal occupations for at least the last five years are set forth below.
Unless otherwise noted, the address of each Trustee and executive officer is
P.O. Box 9011, Princeton, New Jersey 08543-9011.
    
 
   
    ARTHUR ZEIKEL (62)--President and Trustee(1)(2)--President of the Manager
(which term, as used herein, includes the Manager's corporate predecessors)
since 1977 and Chief Investment Officer since 1976; President and Chief
Investment Officer of FAM (which term, as used herein, includes FAM's corporate
predecessors) since 1977; President and Director of Princeton Services, Inc.
("Princeton Services") since 1993; Executive Vice President of Merrill Lynch
since 1990 and a Senior Vice President thereof from 1985 to 1990; Executive Vice
President of Merrill Lynch & Co., Inc. ("ML & Co.") since 1990; Director of
Merrill Lynch Funds Distributor, Inc. (the "Distributor").
    
 
                                       15
<PAGE>
   
    RONALD W. FORBES (54)--Trustee(2)--1400 Washington Avenue, Albany, New York
12222. Professor of Finance, School of Business, State University of New York at
Albany since 1989 and Associate Professor prior thereto; Member, Task Force on
Municipal Securities Markets, Twentieth Century Fund.
    
 
   
    CYNTHIA A. MONTGOMERY (42)--Trustee(2)--Harvard Business School, Soldiers
Field Road, Boston, Massachusetts 20163. Professor, Harvard Business School
since 1989; Associate Professor, J.L. Kellogg Graduate School of Management,
Northwestern University from 1985 to 1989; Assistant Professor, Graduate School
of Business Administration, the University of Michigan from 1979 to 1985;
Director, UNUM Corporation.
    
 
   
    CHARLES C. REILLY (63)--Trustee(2)--9 Hampton Harbor Road, Hampton Bays,
N.Y. 11946. President and Chief Investment Officer of Verus Capital, Inc. from
1979 to 1990; Senior Vice President of Arnhold and S. Bleichroeder, Inc. from
1973 to 1990; Adjunct Professor, Columbia University Graduate School of Business
since 1990; Adjunct Professor, Wharton School, University of Pennsylvania, 1990;
Director, Harvard Business School Alumni Association; Director, Small Cities
CableVision.
    
 
   
    KEVIN A. RYAN (63)--Trustee(2)--127 Commonwealth Avenue, Chestnut Hill,
Massachusetts 02167. Founder, current Director and Professor of The Boston
University Center for the Advancement of Ethics and Character; Professor of
Education at Boston University from 1982 until 1994; formerly taught on the
faculties of the University of Chicago, Stanford University and Ohio State
University.
    
 
   
    RICHARD R. WEST (57)--Trustee(2)--482 Tepi Drive, Southbury, Connecticut
06488. Professor of Finance and Dean from 1984 to 1993, New York University
Leonard N. Stern School of Business Administration; Professor of Finance from
1976 to 1984 and Dean from 1976 to 1983, the Amos Tuck School of Business
Administration; Director of Vornado, Inc. (real estate investment trust), Bowne
& Co., Inc. (financial printer), Smith Corona Corporation (manufacturer of
typewriters and word processors), Alexander's Inc. (real estate company) and Re
Capital Corp. (reinsurance holding company).
    
 
   
    TERRY K. GLENN (54)--Executive Vice President(1)(2)--Executive Vice
President of the Manager and FAM since 1983; Executive Vice President and
Director of Princeton Services since 1993; President of the Distributor since
1986 and Director thereof since 1991.
    
 
   
    VINCENT R. GIORDANO (50)--Senior Vice President(1)(2)--Portfolio Manager of
the Manager and FAM since 1977 and Senior Vice President of the Manager and FAM
since 1984; Senior Vice President of Princeton Services since 1993; Vice
President of the Manager from 1980 to 1984.
    
 
   
    DONALD C. BURKE (34)--Vice President(1)(2)--Vice President and Director of
Taxation of the Manager since 1990; employee of Deloitte & Touche LLP from 1981
to 1990.
    
 
   
    KENNETH A. JACOB (43)--Vice President(1)(2)--Vice President of the Manager
since 1984.
    
 
   
    FREDRICK K. STUEBE (44)--Vice President(1)(2)--Vice President of the Manager
since 1989 and Vice President of Old Republic Insurance Company from 1985 to
1989.
    
 
   
    GERALD M. RICHARD (45)--Treasurer(1)(2)--Senior Vice President and Treasurer
of the Manager and FAM since 1984; Senior Vice President and Treasurer of
Princeton Services since 1993; Vice President of the Distributor since 1981 and
Treasurer since 1984.
    
 
                                       16
<PAGE>
   
    SUSAN B. BAKER (37)--Secretary(1)(2)--Vice President of the Manager since
1993; attorney associated with the Manager since 1987.
    
 
- -------------------
 
(1)  Interested person, as defined in the Investment Company Act, of the Trust.
 
(2)  Such Trustee or officer is a director, trustee or officer of certain other
     investment companies for which the Manager or its affiliate, FAM, acts as
     investment adviser or manager.
 
   
    At February 1, 1995, the Trustees and officers of the Trust as a group (13
persons) owned an aggregate of less than 1% of the outstanding shares of Common
Stock of ML & Co. and owned an aggregate of less than 1% of the outstanding
shares of the Fund.
    
 
   
    The Trust pays to each Trustee not affiliated with the Manager a fee of $800
per year plus $400 per meeting attended, together with such Trustee's actual
out-of-pocket expenses relating to attendance at meetings. The Trust also pays
members of its Audit and Nominating Committee, which consists of all of the
non-affiliated Trustees, a fee of $500 per year; the Chairman of the Audit and
Nominating Committee receives an additional fee of $1,000 per year. Fees and
expenses paid to the non-affiliated Trustees aggregated $16,132 for the year
ended October 31, 1994.
    
 
   
COMPENSATION OF TRUSTEES
    
 
   
    The following table sets forth for the fiscal year ended October 31, 1994
compensation paid by the Fund to the non-interested Trustees and for the
calendar year ended December 31, 1994 the aggregate compensation paid by all
investment companies advised by MLAM and its affiliate, FAM ("MLAM/FAM Advised
Funds") to the non-interested Trustees.
    
 
   
<TABLE><CAPTION>
                                                                                  TOTAL COMPENSATION
                                                                                    FROM FUND AND
                                     AGGREGATE        PENSION OR RETIREMENT        MLAM/FAM ADVISED
                                    COMPENSATION       BENEFITS ACCRUED AS          FUNDS PAID TO
        NAME OF TRUSTEE              FROM FUND         PART OF FUND EXPENSE          TRUSTEES(1)
- -------------------------------   ----------------    ----------------------    ----------------------
<S>                               <C>                 <C>                       <C>
Ronald W. Forbes(1)............        $3,300                  None                    $157,400
Cynthia A. Montgomery(1).......        $3,300                  None                    $125,533
Charles C. Reilly(1)...........        $3,300                  None                    $278,900
Kevin A. Ryan(1)...............        $3,300                  None                    $157,400
Richard R. West(1).............        $4,300                  None                    $296,900
</TABLE>
    
 
- ------------
 
   
(1)  The Trustees served on the boards of other MLAM/FAM Advised Funds as
follows:
    Mr. Forbes (23 boards); Ms. Montgomery (23 boards); Mr. Reilly (40 boards);
Mr. Ryan (23 boards); and Mr. West (40 boards).
    
 
                                       17
<PAGE>
MANAGEMENT AND ADVISORY ARRANGEMENTS
 
    Reference is made to "Management of the Trust--Management and Advisory
Arrangements" in the Prospectus for certain information concerning the
management and advisory arrangements of the Trust.
 
    Securities may be held by, or be appropriate investments for, the Fund as
well as other funds or investment advisory clients of the Manager or FAM.
Because of different objectives or other factors, a particular security may be
bought for one or more clients when one or more clients are selling the same
security. If purchases or sales of securities for the Fund or other funds for
which the Manager or FAM acts as manager or for their advisory clients arise for
consideration at or about the same time, transactions in such securities will be
made, insofar as feasible, for the respective funds and clients in a manner
deemed equitable to all. To the extent that transactions on behalf of more than
one client of the Manager or FAM during the same period may increase the demand
for securities being purchased or the supply of securities being sold, there may
be an adverse effect on price.
 
   
    The Trust has entered into a management agreement on behalf of the Fund (the
"Management Agreement") with the Manager. As discussed in the Prospectus, the
Manager receives for its services to the Fund monthly compensation at an annual
rate of 0.55% of the average daily net assets of the Fund. For the years ended
October 31, 1992, 1993 and 1994, the fees paid by the Fund to the Manager
aggregated $621,450, $891,237 and $999,575, respectively.
    
 
   
    The State of California imposes limitations on the expenses of the Fund.
These annual expense limitations require that the Manager reimburse the Fund in
an amount necessary to prevent the aggregate ordinary operating expenses of the
Fund (excluding interest, taxes, brokerage fees and commissions, distribution
fees and extraordinary charges such as litigation costs) from exceeding in a
fiscal year 2.5% of the Fund's first $30 million of average daily net assets,
2.0% of the next $70 million of average daily net assets and 1.5% of the
remaining average daily net assets. The Manager's obligation to reimburse the
Fund is limited to the amount of the management fee. No payment will be made to
the Manager during any fiscal year which will cause such expenses to exceed the
most restrictive expense limitation applicable at the time of such payment. For
each of the years ended October 31, 1992, 1993 and 1994, respectively, no
reimbursement was required pursuant to the applicable expense limitation
provisions discussed above.
    
    
    The Management Agreement obligates the Manager to provide investment
advisory services and to pay all compensation of and furnish office space for
officers and employees of the Trust connected with investment and economic
research, trading and investment management of the Trust, as well as the fees of
all Trustees of the Trust who are affiliated persons of ML & Co. or any of its
affiliates. The Fund pays all other expenses incurred in its operation and, if
other series should be added ("Series"), a portion of the Trust's general
administrative expenses will be allocated on the basis of the asset size of the
respective Series. Expenses that will be borne directly by the Series include
redemption expenses, expenses of portfolio transactions, expenses of registering
Series shares under Federal and state securities laws, pricing costs (including
the daily calculation of net asset value), expenses of printing shareholder
reports, prospectuses and statements of additional information (except to the
extent paid by
 
                                       18
<PAGE>
the Distributor as described below), fees for legal and auditing services,
Commission fees, interest, certain taxes, and other expenses attributable to a
particular Series. Expenses which will be allocated on the basis of asset size
of the respective Series include fees and expenses of unaffiliated Trustees,
state franchise taxes, costs of printing proxies and other expenses related to
shareholder meetings, and other expenses properly payable by the Trust. The
organizational expenses of the Trust were paid by the Trust, and if additional
Series are added to the Trust, the organizational expenses will be allocated
among the Series in a manner deemed equitable by the Trustees. Accounting
services are provided to the Trust by the Manager and the Trust reimburses the
Manager for its costs in connection with such services on a semi-annual basis.
Depending on the nature of a lawsuit, litigation costs may be assessed to the
specific Series to which the lawsuit relates or allocated on the basis of the
asset size of the respective Series. The Trustees have determined that this is
an appropriate method of allocation of expenses. Certain expenses will be
financed by the Trust pursuant to the distribution plans in compliance with Rule
12b-1 under the Investment Company Act. See "Purchase of Shares--Distribution
Plans".
    
    
    The Manager is a limited partnership, the partners of which are ML & Co. and
Princeton Services.
     
    Duration and Termination. Unless earlier terminated as described herein, the
Management Agreement will remain in effect from year to year if approved
annually (a) by the Trustees of the Trust or by a majority of outstanding shares
of the Fund and (b) by a majority of the Trustees who are not parties to such
contract or interested persons (as defined in the Investment Company Act) of any
such party. Such contracts are not assignable and may be terminated without
penalty on 60 days' written notice at the option of either party thereto or by
vote of the shareholders of the Fund.
 
                               PURCHASE OF SHARES
 
    Reference is made to "Purchase of Shares" in the Prospectus for certain
information as to the purchase of Fund shares.
 
   
    The Fund issues four classes of shares under the Merrill Lynch Select
PricingSM System: shares of Class A and Class D are sold to investors choosing
the initial sales charge alternatives, and shares of Class B are sold to
investors choosing the deferred sales charge alternative. Class C shares of the
Fund are not available for purchase but will be issued only pursuant to the
exchange privilege to holders of Class C shares of other MLAM-advised mutual
funds who elect to exchange Class C shares of such other MLAM-advised mutual
funds for Class C shares of the Fund. Each Class A, Class B, Class C and Class D
share of the Fund represents an identical interest in the investment portfolio
of the Fund and has the same rights, except that Class B, Class C and Class D
shares bear the expenses of the ongoing account maintenance fees, and Class B
and Class C shares bear the expenses of the ongoing distribution fees and the
additional incremental transfer agency costs resulting from the deferred sales
charge arrangements. Class B, Class C and Class D shares each have exclusive
voting rights with respect to the Rule 12b-1 distribution plan adopted with
respect to such class pursuant to which account maintenance and/or distribution
fees are paid. Each class has different exchange privileges. See "Shareholder
Services--Exchange Privilege".
    
 
                                       19
<PAGE>
    The Merrill Lynch Select PricingSM System is used by more than 50 mutual
funds advised by the Manager or its affiliate, FAM. Funds advised by the Manager
or FAM are referred to herein as "MLAM-advised mutual funds".
 
    The Fund has entered into separate distribution agreements with the
Distributor in connection with the continuous offering of each class of shares
of the Fund (the "Distribution Agreements"). The Distribution Agreements
obligate the Distributor to pay certain expenses in connection with the offering
of each class of shares of the Fund. After the prospectuses, statements of
additional information and periodic reports have been prepared, set in type and
mailed to shareholders, the Distributor pays for the printing and distribution
of copies thereof used in connection with the offering to dealers and investors.
The Distributor also pays for other supplementary sales literature and
advertising costs. The Distribution Agreements are subject to the same renewal
requirements and termination provisions as the Investment Advisory Agreement
described above.
 
INITIAL SALES CHARGE ALTERNATIVES--CLASS A AND CLASS D SHARES
 
   
    The gross sales charges for the sale of Class A shares for the year ended
October 31, 1992 were $87,202, of which the Distributor received $8,173 and
Merrill Lynch received $79,029. The gross sales charges for the sale of Class A
shares for the year ended October 31, 1993 were $154,578, of which the
Distributor received $10,639 and Merrill Lynch received $143,939. The gross
sales charges for the sale of Class A shares for the year ended October 31, 1994
were $131,803, of which the Distributor received $7,395 and Merrill Lynch
received $124,408. The Distributor and Merrill Lynch did not receive any gross
sales charges for the sale of Class D shares for the period from October 21,
1994 (commencement of operations) to October 31, 1994.
    
 
   
    The term "purchase", as used in the Prospectus and this Statement of
Additional Information in connection with an investment in Class A and Class D
shares of the Fund, refers to a single purchase by an individual, or to
concurrent purchases, which in the aggregate are at least equal to the
prescribed amounts, by an individual, his spouse and their children under the
age of 21 years purchasing shares for his or their own account and to single
purchases by a trustee or other fiduciary purchasing shares for a single trust
estate or single fiduciary account although more than one beneficiary is
involved. The term "purchase" also includes purchases by a "company", as that
term is defined in the Investment Company Act, but does not include purchases by
any such company which has not been in existence for at least six months or
which has no purpose other than the purchase of shares of the Fund or shares of
other registered investment companies at a discount; provided, however, that it
shall not include purchases by any group of individuals whose sole
organizational nexus is that the participants therein are credit cardholders of
a company, policyholders of an insurance company, customers of either a bank or
broker-dealer or clients of an investment adviser.
    
 
   
    Closed-End Fund Investment Option. Class A shares of the Fund and other
MLAM-advised mutual funds ("Eligible Class A shares") are offered at net asset
value to shareholders of certain closed-end funds advised by the Manager or FAM
who purchased such closed-end fund shares prior to October 21, 1994 (the date
the Merrill Lynch Select PricingSM System commenced operations) and wish to
reinvest the net proceeds from a sale of their closed-end fund shares of common
stock in Eligible
    
 
                                       20
<PAGE>
   
Class A shares, if the conditions set forth below are satisfied. Alternatively,
closed-end fund shareholders who purchased such shares on or after October 21,
1994 and wish to reinvest the net proceeds from a sale of their closed-end fund
shares are offered Class A shares (if eligible to buy Class A shares) or Class D
shares of the Fund and other MLAM-advised mutual funds ("Eligible Class D
shares"), if the following conditions are met. First, the sale of the closed-end
fund shares must be made through Merrill Lynch, and the net proceeds therefrom
must be immediately reinvested in Eligible Class A or Class D shares. Second,
the closed-end fund shares must either have been acquired in the initial public
offering or be shares representing dividends from shares of common stock
acquired in such offering. Third, the closed-end fund shares must have been
continuously maintained in a Merrill Lynch securities account. Fourth, there
must be a minimum purchase of $250 to be eligible for the investment option.
Class A shares of the Fund are offered at net asset value to shareholders of
Merrill Lynch Senior Floating Rate Fund, Inc. ("Senior Floating Rate Fund") who
wish to reinvest the net proceeds from a sale of certain of their shares of
common stock of Senior Floating Rate Fund in shares of the Fund. In order to
exercise this investment option, Senior Floating Rate Fund shareholders must
sell their Senior Floating Rate Fund shares to the Senior Floating Rate Fund in
connection with a tender offer conducted by the Senior Floating Rate Fund and
reinvest the proceeds immediately in the Fund. This investment option is
available only with respect to the proceeds of Senior Floating Rate Fund shares
as to which no Early Withdrawal Charge (as defined in the Senior Floating Rate
Fund prospectus) is applicable. Purchase orders from Senior Floating Rate Fund
shareholders wishing to exercise this investment option will be accepted only on
the day that the related Senior Floating Rate Fund tender offer terminates and
will be effected at the net asset value of the Fund at such day.
    
 
REDUCED INITIAL SALES CHARGES
 
    Right of Accumulation. Reduced sales charges are applicable through a right
of accumulation under which eligible investors are permitted to purchase shares
of the Fund subject to an initial sales charge at the offering price applicable
to the total of (a) the public offering price of the shares then being purchased
plus (b) an amount equal to the then current net asset value or cost, whichever
is higher, of the purchaser's combined holdings of all classes of shares of the
Fund and of other MLAM-advised mutual funds. For any such right of accumulation
to be made available, the Distributor must be provided at the time of purchase,
by the purchaser or the purchaser's securities dealer, with sufficient
information to permit confirmation of qualification. Acceptance of the purchase
order is subject to such confirmation. The right of accumulation may be amended
or terminated at any time. Shares held in the name of a nominee or custodian
under pension, profit-sharing, or other employee benefit plans may not be
combined with other shares to qualify for the right of accumulation.
 
    Letter of Intention. Reduced sales charges are applicable to purchases
aggregating $100,000 or more of Class A or Class D shares of the Fund or any
other MLAM-advised mutual funds made within a 13-month period starting with the
first purchase pursuant to a Letter of Intention in the form provided in the
Prospectus. The Letter of Intention is available only to investors whose
accounts are maintained at the Fund's transfer agent. The Letter of Intention is
not available to employee benefit plans for which Merrill Lynch provides plan
participant record keeping services. The Letter of Intention is not a binding
obligation to purchase any amount of Class A or Class D shares, however, its
execution will result in the
 
                                       21
<PAGE>
purchaser paying a lower sales charge at the appropriate quantity purchase
level. A purchase not originally made pursuant to a Letter of Intention may be
included under a subsequent Letter of Intention executed within 90 days of such
purchase if the Distributor is informed in writing of this intent within such
90-day period. The value of Class A and Class D shares of the Fund and of other
MLAM-advised mutual funds presently held, at cost or maximum offering price
(whichever is higher), on the date of the first purchase under the Letter of
Intention, may be included as a credit toward the completion of such Letter, but
the reduced sales charge applicable to the amount covered by such Letter will be
applied only to new purchases. If the total amount of shares does not equal the
amount stated in the Letter of Intention (minimum of $100,000), the investor
will be notified and must pay, within 20 days of the expiration of such Letter,
the difference between the sales charge on the Class A or Class D shares
purchased at the reduced rate and the sales charge applicable to the shares
actually purchased through the Letter. Class A or Class D shares equal to five
percent of the intended amount will be held in escrow during the 13-month period
(while remaining registered in the name of the purchaser) for this purpose. The
first purchase under the Letter of Intention must be at least five percent of
the dollar amount of such Letter. If a purchase during the term of such Letter
would otherwise be subject to a further reduced sales charge based on the right
for accumulation, the purchaser will be entitled on that purchase and subsequent
purchases to that further reduced percentage sales charge but there will be no
retroactive reduction of the sales charges on any previous purchase. The value
of any shares redeemed or otherwise disposed of by the purchaser prior to
termination or completion of the Letter of Intention will be deducted from the
total purchases made under such Letter. An exchange from a MLAM-advised money
market fund into the Fund that creates a sales charge will count toward
completing a new or existing Letter of Intention from the Fund.
    
    TMA SM Managed Trusts. Class A shares are offered to TMA SM Managed Trusts 
to which Merrill Lynch Trust Company provides discretionary trustee services at 
net asset value.
     
   
    Purchase Privilege of Certain Persons. Trustees of the Trust, members of the
Boards of other MLAM-advised investment companies, ML & Co. and its subsidiaries
(the term "subsidiaries", when used herein with respect to ML & Co., includes
MLAM, FAM and certain other entities directly or indirectly wholly-owned and
controlled by ML & Co.) and their directors and employees, and any trust,
pension, profit-sharing or other benefit plan for such persons may purchase
Class A shares of the Fund at net asset value.
    
 
   
    Class D shares of the Fund are offered at net asset value, without sales
charge, to an investor who has a business relationship with a financial
consultant who joined Merrill Lynch from another investment firm within six
months prior to the date of purchase by such investor, if the following
conditions are satisfied. First, the investor must advise Merrill Lynch that it
will purchase Class D shares of the Fund with proceeds from a redemption of a
mutual fund that was sponsored by the financial consultant's previous firm and
was subject to a sales charge either at the time of purchase or on a deferred
basis. Second, the investor also must establish that such redemption had been
made within 60 days prior to the investment in the Fund, and the proceeds from
the redemption had been maintained in the interim in cash or a money market
fund.
    
 
                                       22
<PAGE>
   
    Class D shares of the Fund are also offered at net asset value, without
sales charge, to an investor who has a business relationship with a Merrill
Lynch financial consultant and who has invested in a mutual fund sponsored by a
non-Merrill Lynch company for which Merrill Lynch has served as a selected
dealer and where Merrill Lynch has either received or given notice that such
arrangement will be terminated ("notice"), if the following conditions are
satisfied: First, the investor must purchase Class D shares of the Fund with
proceeds from a redemption of shares of such other mutual fund and the shares of
such other fund were subject to a sales charge either at the time of purchase or
on a deferred basis. Second, such purchase of Class D shares must be made within
90 days after such notice.
    
 
   
    Class D shares of the Fund are offered at net asset value, without a sales
charge, to an investor who has a business relationship with a Merrill Lynch
financial consultant and who has invested in a mutual fund for which Merrill
Lynch has not served as a selected dealer if the following conditions are
satisfied: First, the investor must advise Merrill Lynch that it will purchase
Class D shares of the Fund with proceeds from the redemption of such shares of
other mutual funds and that such shares have been outstanding for a period of no
less than six months. Second, such purchase of Class D shares must be made
within 60 days after the redemption and the proceeds from the redemption must be
maintained in the interim in cash or a money market fund.
    
 
    Acquisition of Certain Investment Companies. The public offering price of
Class D shares may be reduced to the net asset value per Class D share in
connection with the acquisition of the assets of or merger or consolidation with
a personal holding company or a public or private investment company. The value
of the assets or company acquired in a tax-free transaction may be adjusted in
appropriate cases to reduce possible adverse consequences to the Fund which
might result from an acquisition of assets having net unrealized appreciation
which is disproportionately higher at the time of acquisition than the realized
or unrealized appreciation of the Fund. The issuance of Class D shares for
consideration other than cash is limited to bona fide reorganizations, statutory
mergers or other acquisitions of portfolio securities which (i) meet the
investment objectives and policies of the Fund; (ii) are acquired for investment
and not for resale (subject to the understanding that the disposition of the
Fund's portfolio securities shall at all times remain within its control); and
(iii) are liquid securities, the value of which is readily ascertainable, which
are not restricted as to transfer either by law or liquidity of market (except
that the Fund may acquire through such transactions restricted or illiquid
securities to the extent the Fund does not exceed the applicable limits on
acquisition of such securities set forth under "Investment Objective and
Policies" herein).
 
    Reductions in or exemptions from the imposition of a sales load are due to
the nature of the investors and/or the reduced sales efforts that will be needed
in obtaining such investments.
 
DISTRIBUTION PLANS
 
    Reference is made to "Purchase of Shares--Distribution Plans" in the
Prospectus for certain information with respect to the separate distribution
plans for Class B, Class C and Class D shares pursuant to Rule 12b-1 under the
Investment Company Act (each a "Distribution Plan") with respect
 
                                       23
<PAGE>
to the account maintenance and/or distribution fees paid by the Fund to the
Distributor with respect to such classes.
 
    Payments of the account maintenance fees and/or distribution fees are
subject to the provisions of Rule 12b-1 under the Investment Company Act. Among
other things, each Distribution Plan provides that the Distributor shall provide
and the Trustees shall review quarterly reports of the disbursement of the
account maintenance fees and/or distribution fees paid to the Distributor. In
their consideration of each Distribution Plan, the Trustees must consider all
factors they deem relevant, including information as to the benefits of the
Distribution Plan to the Fund and its related class of shareholders. Each
Distribution Plan further provides that, so long as the Distribution Plan
remains in effect, the selection and nomination of Trustees who are not
"interested persons" of the Fund, as defined in the Investment Company Act (the
"Independent Trustees"), shall be committed to the discretion of the Independent
Trustees then in office. In approving each Distribution Plan in accordance with
Rule 12b-1, the Independent Trustees concluded that there is a reasonable
likelihood that such Distribution Plan will benefit the Fund and its related
class of shareholders. Each Distribution Plan can be terminated at any time,
without penalty, by the vote of a majority of the Independent Trustees or by the
vote of the holders of a majority of the outstanding related class of voting
securities of the Fund. A Distribution Plan cannot be amended to increase
materially the amount to be spent by the Fund without the approval of the
related class of shareholder, and all material amendments are required to be
approved by the vote of the Trustees, including a majority of the Independent
Trustees who have no direct or indirect financial interest in such Distribution
Plan, cast in person at a meeting called for that purpose. Rule 12b-1 further
requires that the Fund preserve copies of each Distribution Plan and any report
made pursuant to such plan for a period of not less than six years from the date
of such Distribution Plan or such report, the first two years in an easily
accessible place.
 
LIMITATIONS ON THE PAYMENT OF DEFERRED SALES CHARGES
 
   
    The maximum sales charge rule in the Rules of Fair Practice of the National
Association of Securities Dealers, Inc. ("NASD") imposes a limitation on certain
asset-based sales charges such as the distribution fee and the contingent
deferred sales charge ("CDSC") borne by the Class B and Class C shares but not
the account maintenance fee. The maximum sales charge rule is applied separately
to each class. As applicable to the Fund, the maximum sales charge rule limits
the aggregate of distribution fee payments and CDSCs payable by the Fund to (1)
6.25% of eligible gross sales of Class B and Class C shares, computed separately
(defined to exclude shares issued pursuant to dividend reinvestments and
exchanges), plus (2) interest on the unpaid balance for the respective class,
computed separately, at the prime rate plus 1% (the unpaid balance being the
maximum amount payable minus amounts received from the payment of the
distribution fee and the CDSC). In connection with the Class B shares, the
Distributor has voluntarily agreed to waive interest charges on the unpaid
balance in excess of 0.50% of eligible gross sales. Consequently, the maximum
amount payable to the Distributor (referred to as the "voluntary maximum") in
connection with the Class B shares is 6.75% of eligible gross sales. The
Distributor retains the right to stop waiving the interest charges at any time.
To the extent payments would exceed the voluntary maximum, the Fund will not
make further payments of the
    
 
                                       24
<PAGE>
distribution fee with respect to Class B shares, and any CDSCs will be paid to
the Fund rather than to the Distributor, however, the Fund will continue to make
payments of the account maintenance fee. In certain circumstances, the amount
payable pursuant to the voluntary maximum may exceed the amount payable under
the NASD formula. In such circumstances payment in excess of the amount payable
under the NASD formula will not be made.
 
   
    The following table sets forth comparative information as of October 31,
1994 with respect to the Class B shares and as of November 30, 1994 with respect
to the Class C shares indicating the maximum allowable payments that can be made
under the NASD maximum sales charge rule and, with respect to Class B shares,
the Distributor's voluntary maximum.
    
 
   
<TABLE><CAPTION>
                                                                                                                       ANNUAL
                                                                                                                    DISTRIBUTION
                                                  ALLOWABLE    ALLOWABLE                  AMOUNTS                      FEE AT
                                                  AGGREGATE    INTEREST     MAXIMUM     PREVIOUSLY      AGGREGATE     CURRENT
                                 ELIGIBLE GROSS     SALES      ON UNPAID    AMOUNT        PAID TO        UNPAID      NET ASSET
                                   SALES (1)       CHARGES    BALANCE (2)   PAYABLE   DISTRIBUTOR (3)    BALANCE     LEVEL (4)
                                 --------------   ---------   -----------   -------   ---------------   ---------   ------------
<S>                              <C>              <C>         <C>           <C>       <C>               <C>         <C>
FOR CLASS B SHARES--DATA
 CALCULATED AS OF OCTOBER 31,
 1994
 (IN THOUSANDS):
Class B Shares (for the fiscal
  period November 26, 1986 
  (commencement of public 
  offering) to October 31, 
  1994):
Under NASD Rule as Adopted.....     $340,822       $21,301      $15,891     $37,192       $ 3,664        $33,528        $142
Under Distributor's Voluntary
  Waiver.......................     $340,822       $21,301      $ 1,704     $23,005       $ 3,664        $19,341        $142
 
FOR CLASS C SHARES--DATA
 CALCULATED AS OF NOVEMBER 30,
 1994
 (NOT ROUNDED):
Class C Shares (for the fiscal
  period October 21, 1994
  (commencement of public
  offering) to October 31,
  1994):
Under NASD Rule as Adopted.....     $     97         --          --           --          --             $     7        $ 10
</TABLE>
    
 
- ------------
 
   
(1) Purchase price of all eligible Class B shares sold since November 26, 1986
    (commencement of the public offering of Class B shares) other than shares
    acquired through dividend reinvestment and the exchange privilege. Purchase
    price of all eligible Class C shares sold since October 21, 1994
    (commencement of the public offering of Class C shares) other than shares
    acquired through dividend reinvestment and the exchange privilege.
    
 
   
(2) Interest is computed on a monthly basis based upon the prime rate, as
    reported in The Wall Street Journal, plus 1.0% as permitted under the NASD
    Rule.
    
 
   
(3) Consists of CDSC payments, distribution fee payments and accruals. With
    respect to Class B shares, of the distribution fee payments made prior to
    July 6, 1993 at the 0.30% rate, 0.20% of average daily net assets has been
    treated as a distribution fee and 0.10% of average daily net assets has been
    deemed to have been a service fee and not subject to the NASD maximum sales
    charge rule. See "Purchase of Shares--Distribution Plans" in the Prospectus.
    
 
(4) Provided to illustrate the extent to which the current level of distribution
    fee payments (not including any CDSC payments) is amortizing the unpaid
    balance. No assurance can be given that payments of the distribution fee
    will reach either the voluntary maximum or the NASD maximum.
 
                                       25



<PAGE>
                              REDEMPTION OF SHARES
 
    Reference is made to "Redemption of Shares" in the Prospectus for certain
information as to the redemption and repurchase of Fund shares.
 
    The right to redeem shares or to receive payment with respect to any such
redemption may be suspended only for any period during which trading on the New
York Stock Exchange is restricted as determined by the Commission or such
Exchange is closed (other than customary weekend and holiday closings), for any
period during which an emergency exists as defined by the Commission as a result
of which disposal of portfolio securities or determination of the net asset
value of the Fund is not reasonably practicable, and for such other periods as
the Commission by order may permit for the protection of shareholders of the
Fund.
 
DEFERRED SALES CHARGES--CLASS B SHARES
 
   
    As discussed in the Prospectus under "Purchase of Shares--Deferred Sales
Charge Alternative-- Class B Shares", while Class B shares redeemed within one
year of purchase are subject to a CDSC under most circumstances, the charge is
waived on redemptions of Class B shares following the death or disability of a
Class B shareholder. Redemptions for which the waiver applies are any partial or
complete redemption following the death or disability (as defined in the
Internal Revenue Code of 1986, as amended (the "Code")) of a Class B shareholder
(including one who owns the Class B shares as joint tenant with his or her
spouse), provided the redemption is requested within one year of the death or
initial determination of disability. For the years ended October 31, 1992, 1993
and 1994, the Distributor received CDSCs with respect to Class B shares of the
Fund of $37,040, $51,987 and $162,923, respectively, all of which was paid to
Merrill Lynch.
    
 
                             PORTFOLIO TRANSACTIONS
 
    Reference is made to "Investment Objective and Policies" and "Portfolio
Transactions" in the Prospectus.
 
   
    Under the Investment Company Act, persons affiliated with the Trust are
prohibited from dealing with the Trust as principals in the purchase and sale of
securities for the Fund unless such trading is permitted by an exemptive order
issued by the Commission. Since over-the-counter transactions are usually
principal transactions, affiliated persons of the Trust, including Merrill
Lynch, may not serve as dealers in connection with transactions for the Fund.
The Trust has obtained an exemptive order permitting it to engage in certain
principal transactions with Merrill Lynch involving high-quality short-term
Municipal Bonds, subject to certain conditions. During the year ended October
31, 1992, the Fund engaged in no transactions pursuant to such order. During the
year ended October 31, 1993, the Fund engaged in four principal transactions
with Merrill Lynch aggregating $8,600,000. During the year ended October 31,
1994, the Fund engaged in three principal transactions with Merrill Lynch
aggregating $2,300,000. An affiliated person of the Trust may serve as its
broker in the over-the-counter transactions conducted on an agency basis.
    
 
                                       26
<PAGE>
    The Trustees have considered the possibility of recapturing for the benefit
of the Fund dealer spreads and other expenses of possible portfolio
transactions, such as underwriting commissions, by conducting such portfolio
transactions through affiliated entities, including Merrill Lynch. After
considering all factors deemed relevant, the Trustees made a determination not
to seek such recapture. The Trustees will reconsider this matter from time to
time.
 
   
    As a non-fundamental restriction, the Trust will prohibit the purchase or
retenton by the Fund of the securities of any issuer if the officers and/or
trustees of the Trust, the officers and general partner of the Manager, the
directors of such general partner or the officers and directors of any
subsidiary thereof each owning beneficially more than one-half of one percent of
the securities of such issuer own in the aggregate more than five percent of the
securities of that issuer. In addition, under the Investment Company Act, the
Trust may not purchase municipal bonds for the Fund from any underwriting
syndicate of which Merrill Lynch is a member except pursuant to an exemptive
order or rules adopted by the Commission. Rule 10f-3 under the Investment
Company Act sets forth conditions under which the Trust may purchase municipal
bonds in such transactions. The rule sets forth requirements relating to, among
other things, the terms of an issue of municipal bonds purchased by the Trust,
the amount of municipal bonds which may be purchased in any one issue and the
assets of the Fund which may be invested in a particular issue.
    
 
   
    The Trust does not expect to use any particular dealer in the execution of
transactions but, subject to obtaining the best net results, dealers who provide
supplemental investment research (such as information concerning tax-exempt
securities, economic data and market forecasts) to the Manager may receive
orders for transactions for the Fund. Information so received will be in
addition to and not in lieu of the services required to be performed by the
Manager under its Management Agreement and the expense of the Manager will not
necessarily be reduced as a result of the receipt of such supplemental
information. The Trust has no obligation to deal with any broker in the
execution of transactions for the Fund's portfolio securities. In addition,
consistent with the Rules of Fair Practice of the NASD and policies established
by the Trust's Trustees, the Manager may consider sales of shares of the Trust
as a factor in the selection of brokers or dealers to execute portfolio
transactions for the Trust.
    
 
   
    For the fiscal years ended October 31, 1992, 1993 and 1994, the Fund paid no
brokerage commissions.
    
 
    Section 11(a) of the Securities Exchange Act of 1934, as amended, generally
prohibits members of the national securities exchanges from executing exchange
transactions for their affiliates and institutional accounts which they manage
unless the member (i) has obtained prior express authorization from the account
to effect such transactions, (ii) at least annually furnishes the account with
the aggregate compensation received by the member in effecting such
transactions, and (iii) complies with any rules the Commission has prescribed
with respect to the requirements of clauses (i) and (ii). To the extent Section
11(a) would apply to Merrill Lynch acting as a broker for the Fund in any of its
portfolio transactions executed on any such securities exchange of which it is a
member, appropriate consents have been obtained from the Fund and annual
statements as to aggregate compensation will be provided to the Fund.
 
                                       27
<PAGE>
                        DETERMINATION OF NET ASSET VALUE
 
    Reference is made to "Additional Information--Determination of Net Asset
Value" in the Prospectus concerning the determination of net asset value.
 
   
    The net asset value of the Fund is determined by the Manager once daily,
Monday through Friday 15 minutes after the close of business on the New York
Stock Exchange (generally, 4:00 P.M., New York time), on each day during which
the New York Stock Exchange is open for trading. The New York Stock Exchange is
not open on New Year's Day, President's Day, Good Friday, Memorial Day,
Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Net asset value
per share is computed by dividing the sum of the value of the securities held by
the Fund plus any cash or other assets minus all liabilities by the total number
of shares outstanding at such time, rounded to the nearest cent. Expenses,
including the management fees and any account maintenance and/or distribution
fees, are accrued daily. The net asset value per share of the Class B, Class C
and Class D shares generally will be lower than the net asset value per share of
the Class A shares reflecting the daily expense accruals of the account
maintenance, distribution and higher transfer agency fees applicable with
respect to the Class B and Class C shares and the daily expense accruals of the
account maintenance fees applicable with respect to the Class D shares;
moreover, the net asset value per share of Class B and Class C shares generally
will be lower than the net asset value per share of Class D shares reflecting
the daily expense accruals of the distribution fees and higher account
maintenance and transfer agency fees applicable with respect to Class B and
Class C shares. It is expected, however, that the net asset value per share of
the four classes eventually will tend to converge (although not necessarily
meet) immediately after the payment of dividends, which will differ by
approximately the amount of the expense accrual differentials between the
classes.
    
 
    The Municipal Bonds and other portfolio securities in which the Fund invests
are traded primarily in over-the-counter municipal bond and money markets and
are valued at the last available bid price in the over-the-counter market or on
the basis of yield equivalents as obtained from one or more dealers that make
markets in the securities. One bond is the "yield equivalent" of another bond
when, taking into account market price, maturity, coupon rate, credit rating and
ultimate return of principal, both bonds will theoretically produce an
equivalent return to the bondholder. Financial futures contracts, which are
traded on exchanges, are valued at their last sale price as of the close of such
exchanges. Options on financial futures contracts on U.S. Government securities,
which are traded on exchanges, are valued at their last bid price in the case of
options purchased by the Fund and their last asked price in the case of options
written by the Fund. Short-term investments with a remaining maturity of 60 days
or less are valued on an amortized cost basis which approximates market value.
Securities and assets for which market quotations are not readily available are
valued at fair value as determined in good faith by or under the direction of
the Trustees of the Trust, including valuations furnished by a pricing service
retained by the Trust, which may utilize a matrix system for valuations. The
procedures of the pricing service and its valuations are reviewed by the
officers of the Trust under the general supervision of the Trustees.
 
                                       28
<PAGE>
                              SHAREHOLDER SERVICES
 
    The Trust offers a number of shareholder services and investment plans
described below which are designed to facilitate investment in shares of the
Fund. Full details as to each of such services and copies of the various plans
described below can be obtained from the Trust, the Distributor or Merrill
Lynch.
 
INVESTMENT ACCOUNT
 
    Each shareholder whose account is maintained at the Transfer Agent has an
Investment Account and will receive, at least quarterly, statements from the
Transfer Agent showing any automatic investment purchases and reinvestments of
dividends and capital gain distributions activity in the account since the
previous statement. Shareholders also will receive separate confirmations for
each purchase or sale transaction other than automatic investment purchases and
the reinvestment of dividends and capital gain distributions. Shareholders
considering transferring their Class A or Class D shares from Merrill Lynch to
another brokerage firm or financial institution should be aware that, if the
firm to which the Class A or Class D shares are to be transferred will not take
delivery of shares of the Fund, a shareholder either must redeem the Class A or
Class D shares so that the cash proceeds can be transferred to the account at
the new firm or such shareholder must continue to maintain an Investment Account
at the Transfer Agent for those Class A or Class D shares. Shareholders
interested in transferring their Class B or Class C shares from Merrill Lynch
and who do not wish to have an Investment Account maintained for such shares at
the Transfer Agent may request their new brokerage firm to maintain such shares
in an account registered in the name of the brokerage firm for the benefit of
the shareholder at the Transfer Agent. A shareholder may make additions to his
or her Investment Account at any time by mailing a check directly to the
Transfer Agent.
 
    Share certificates are issued only for full shares and only upon the
specific request of a shareholder who has an Investment Account. Issuance of
certificates representing all or only part of the full shares in an Investment
Account may be requested by a shareholder directly from the Transfer Agent.
 
AUTOMATIC INVESTMENT PLANS
 
   
    A shareholder may make additions to an Investment Account at any time by
purchasing Class A shares (if an eligible Class A investor as described in the
Prospectus) or Class B or Class D shares at the applicable public offering price
either through the shareholder's securities dealer, or by mail directly to the
Transfer Agent, acting as agent for such securities dealer. Voluntary
accumulation also can be made through a service known as the Fund's Automatic
Investment Plan whereby the Trust is authorized through pre-authorized checks or
automated clearing house debits of $50 or more to charge the regular bank
account of the shareholder on a regular basis to provide systematic additions to
the Investment Account of such shareholder. Investors who maintain CMA(R) or
CBA(R) accounts may arrange to have periodic investments made in the Fund in
their CMA(R) or CBA(R) accounts or in certain related accounts in amounts of
$100 or more through the CMA(R)/CBA(R) Automated Investment Program.
    
 
AUTOMATIC REINVESTMENT OF DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS
 
    Unless specific instructions are given as to the method of payment of
dividends and capital gain distributions, dividends and distributions will be
reinvested automatically in additional shares of the Fund. Such reinvestment
will be at the net asset value of shares of the Fund as of the close of business
on
 
                                       29
<PAGE>
the payment date for such dividends and distributions. Shareholders may elect in
writing to receive either their income dividends or capital gain distributions,
or both, in cash, in which event payment will be mailed or direct deposited on
or about the payment date.
 
    Shareholders, at any time, may notify the Transfer Agent in writing or by
telephone (1-800-MER-FUND) that they no longer wish to have their dividends
and/or capital gain distributions reinvested in shares of the Fund or vice versa
and, commencing ten days after the receipt by the Transfer Agent of such notice,
those instructions will be effected.
 
SYSTEMATIC WITHDRAWAL PLANS--CLASS A AND CLASS D SHARES
 
    A Class A or Class D shareholder may elect to make systematic withdrawals
from an Investment Account on either a monthly or quarterly basis as provided
below. Quarterly withdrawals are available for shareholders who have acquired
Class A or Class D shares of the Fund having a value, based on cost or the
current offering price, of $5,000 or more, and monthly withdrawals are available
for shareholders who have acquired Class A or Class D shares with a value of
$10,000 or more.
 
   
    At the time of each withdrawal payment, sufficient Class A or Class D shares
are redeemed from those on deposit in the shareholder's account to provide the
withdrawal payment specified by the shareholder. The shareholder may specify
either a dollar amount or a percentage of the value of his or her Class A or
Class D shares. Redemptions will be made at net asset value as determined 15
minutes after the close of business on the New York Stock Exchange (generally,
4:00 P.M., New York time) on the 24th day of each month or the 24th day of the
last month of each quarter, whichever is applicable. If the Exchange is not open
for business on such date, the Class A or Class D shares will be redeemed at the
close of business on the following business day. The check for the withdrawal
payment will be mailed, or the direct deposit of the withdrawal payment will be
made, on the next business day following redemption. When a shareholder is
making systematic withdrawals, dividends and distributions on all Class A or
Class D shares in the Investment Account are reinvested automatically in Fund
Class A or Class D shares, respectively. A shareholder's Systematic Withdrawal
Plan may be terminated at any time, without charge or penalty, by the
shareholder, the Fund, the Fund's Transfer Agent or the Distributor. Withdrawal
payments should not be considered as dividends, yield or income. Each withdrawal
is a taxable event. If periodic withdrawals continuously exceed reinvested
dividends, the shareholder's original investment may be reduced correspondingly.
Purchases of additional Class A or Class D shares concurrent with withdrawals
are ordinarily disadvantageous to the shareholder because of sales charges and
tax liabilities. The Fund will not knowingly accept purchase orders for Class A
or Class D shares of the Fund from investors who maintain a Systematic
Withdrawal Plan unless such purchase is equal to at least one year's scheduled
withdrawals or $1,200, whichever is greater. Periodic investments may not be
made into an Investment Account in which the shareholder has elected to make
systematic withdrawals.
    
 
   
    A Class A or Class D shareholder whose shares are held within a CMA(R) or
CBA(R) Account may elect to have shares redeemed on a monthly, bimonthly,
quarterly, semiannual or annual basis through the CMA(R)/CBA(R) Systematic
Redemption Program. The minimum fixed dollar amount redeemable is $25. The
proceeds of systematic redemptions will be posted to the shareholder's account
five business days after the date the shares are redeemed. Monthly systematic
redemptions will be made at net asset value on the first Monday of each month,
bimonthly systematic redemptions will be made at net asset
    
 
                                       30
<PAGE>
   
value on the first Monday of every other month, and quarterly, semiannual or
annual redemptions are made at net asset value on the first Monday of months
selected at the shareholder's option. If the first Monday of the month is a
holiday, the redemption will be processed at net asset value on the next
business day. The Systematic Redemption Program is not available if Fund shares
are being purchased within the account pursuant to the Automatic Investment
Program. For more information on the CMA(R)/CBA(R) Systematic Redemption
Program, eligible shareholders should contact their Financial Consultant.
    
 
EXCHANGE PRIVILEGE
 
   
    Shareholders of each class of shares of the Fund have an exchange privilege
with certain other MLAM-advised mutual funds listed below. Under the Select
Pricing System, Class A shareholders may exchange Class A shares of the Fund for
Class A shares of a second MLAM-advised mutual fund if the shareholder holds any
Class A shares of the second fund in his account in which the exchange is made
at the time of the exchange or is otherwise eligible to purchase Class A shares
of the second fund. If the Class A shareholder wants to exchange Class A shares
for shares of a second MLAM-advised mutual fund, but does not hold Class A
shares of the second fund in his account at the time of the exchange and is not
otherwise eligible to acquire Class A shares of the second fund, the shareholder
will receive Class D shares of the second fund as a result of the exchange.
Class D shares also may be exchanged for Class A shares of a second MLAM-advised
mutual fund at any time as long as, at the time of the exchange, the shareholder
holds Class A shares of the second fund in the account in which the exchange is
made or is otherwise eligible to purchase Class A shares of the second fund.
Class B, Class C and Class D shares are exchangeable with shares of the same
class of other MLAM-advised mutual funds. For purposes of computing the CDSC
that may be payable upon a disposition of the shares acquired in the exchange,
the holding period for the previously owned shares of the Fund is "tacked" to
the holding period of the newly acquired shares of the other fund as more fully
described below. Class A, Class B, Class C and Class D shares also are
exchangeable for shares of certain MLAM-advised money market funds specifically
designated below as available for exchange by holders of Class A, Class B, Class
C or Class D shares. Shares with a net asset value of at least $100 are required
to qualify for the exchange privilege, and any shares utilized in an exchange
must have been held by the shareholder for 15 days. It is contemplated that the
exchange privilege may be applicable to other new mutual funds whose shares may
be distributed by the Distributor.
    
 
   
    Exchange of Class A or Class D shares outstanding ("outstanding Class A or
Class D shares") for Class A or Class D shares of another MLAM-advised mutual
funds ("new Class A or Class D shares") are transacted on the basis of relative
net asset value per Class A or Class D share, respectively, plus an amount equal
to the difference, if any, between the sales charge previously paid on the
outstanding Class A or Class D shares and the sales charge payable at the time
of the exchange on the new Class A or Class D shares. With respect to
outstanding Class A or Class D shares as to which previous exchanges have taken
place, the "sales charge previously paid" shall include the aggregate of the
sales charges paid with respect to such Class A or Class D shares in the initial
purchase and any subsequent exchange. Class A or Class D shares issued pursuant
to dividend reinvestment are sold on a no-load basis in each of the funds
offering Class A or Class D shares. For purposes of the exchange privilege,
dividend reinvestment Class A and Class D shares shall be deemed to have been
sold with a sales charge equal to the sales charge previously paid on the Class
A or Class D shares on which the dividend was
    
 
                                       31
<PAGE>
paid. Based on this formula, Class A and Class D shares of the Fund generally
may be exchanged into the Class A or Class D shares of the other funds or into
shares of the Class A and Class D money market funds with a reduced or without a
sales charge.
 
    In addition, each of the funds with Class B and Class C shares outstanding
("outstanding Class B or Class C shares") offers to exchange its Class B or
Class C shares for Class B or Class C shares, respectively, of another
MLAM-advised mutual fund ("new Class B or Class C shares") on the basis of
relative net asset value per Class B or Class C share, without the payment of
any CDSC that might otherwise be due on redemption of the outstanding shares.
Class B shareholders of the Fund exercising the exchange privilege will continue
to be subject to the Fund's CDSC schedule if such schedule is higher than the
CDSC schedule relating to the new Class B shares acquired through the use of the
exchange privilege. In addition, Class B shares of the Fund acquired through use
of the exchange privilege will be subject to the Fund's CDSC schedule if such
schedule is higher than the CDSC schedule relating to the Class B shares of the
fund from which the exchange has been made. For purposes of computing the sales
charge that may be payable on a disposition of the new Class B or Class C
shares, the holding period for the outstanding Class B or Class C shares is
"tacked" to the holding period for the new Class B or Class C shares. For
example, an investor may exchange Class B shares of the Fund for those of
Merrill Lynch Special Value Fund, Inc. ("Special Value Fund") after having held
the Fund's Class B shares for six months. The 1% CDSC that generally would apply
to a redemption would not apply to the exchange. Three and a half years later
the investor may decide to redeem the Class B shares of Special Value Fund and
receive cash. There will be no CDSC due on this redemption, since by "tacking"
the six month holding period of Fund Class B shares to the three and a half year
holding period for the Special Value Fund Class B shares, the investor will be
deemed to have held the new Class B shares for four years.
 
   
    Shareholders also may exchange shares of the Fund into shares of a money
market fund advised by the Manager or its affiliates, but the period of time
that Class B or Class C shares are held in a money market fund will not count
towards satisfaction of the holding period requirement for purposes of reducing
the CDSC or with respect to Class B shares, towards satisfaction of the
conversion period. However, shares of a money market fund which were acquired as
a result of an exchange for Class B or Class C shares of the Fund may, in turn,
be exchanged back into Class B or Class C shares, respectively, of any fund
offering such shares, in which event the holding period for Class B or Class C
shares of the Fund will be aggregated with previous holding periods for purposes
of reducing the CDSC. Thus, for example, an investor may exchange Class B shares
of the Fund for shares of Merrill Lynch Institutional Fund ("Institutional
Fund") after having held the Fund Class B shares for six months and three years
later decide to redeem the shares of Institutional Fund for cash. At the time of
this redemption, the 1% CDSC that would have been due had the Class B shares of
the Fund been redeemed for cash rather than exchanged for shares of
Institutional Fund will be payable. If, instead of such redemption the
shareholder exchanged such shares for Class B shares of a fund with a four-year
CDSC period which the shareholder continues to hold for an additional three and
a half years, any subsequent redemption will not incur a CDSC.
    
 
                                       32
<PAGE>
    Set forth below is a description of the investment objectives of the other
funds into which exchanges can be made:
 
Funds Issuing Class A, Class B, Class C and Class D Shares:
 
<TABLE>
<S>                                    <C>
MERRILL LYNCH ADJUSTABLE RATE
SECURITIES FUND, INC. ...............  High current income consistent with a policy of
                                         limiting the degree of fluctuation in net asset
                                         value of fund shares resulting from movements in
                                         interest rates, through investment primarily in a
                                         portfolio of adjustable rate securities.
MERRILL LYNCH AMERICAS INCOME FUND,
INC. ................................  A high level of current income, consistent with
                                         prudent investment risk, through investment
                                         primarily in debt securities denominated in a
                                         currency of a country located in the Western
                                         Hemisphere (i.e., North and South America and the
                                         surrounding waters).
MERRILL LYNCH ARIZONA LIMITED
MATURITY MUNICIPAL BOND FUND.........  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal and Arizona income
                                         taxes as is consistent with prudent investment
                                         management through investment in a portfolio
                                         primarily of intermediate-term investment grade
                                         Arizona Municipal Bonds.
 
MERRILL LYNCH ARIZONA MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Arizona income taxes as is consistent
                                         with prudent investment management.
 
MERRILL LYNCH ARKANSAS MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Arkansas income taxes as is consistent
                                         with prudent investment management.
 
MERRILL LYNCH ASSET GROWTH FUND,
INC. ................................  High total investment return, consistent with
                                         prudent risk, from investment in United States and
                                         foreign equity,
</TABLE>
 
                                       33
<PAGE>
<TABLE>
<S>                                    <C>
                                         debt and money market securities the combination
                                         of which will be varied both with respect to types
                                         of securities and markets in response to changing
                                         market and economic trends.
 
MERRILL LYNCH ASSET INCOME FUND,
INC. ................................  A high level of current income through investment
                                         primarily in United States fixed income securities.
 
MERRILL LYNCH BALANCED FUND FOR
INVESTMENT AND RETIREMENT............  As high a level of total investment return as is
                                         consistent with a relatively low level of risk
                                         through investment in common stocks and other
                                         types of securities, including fixed income
                                         securities and convertible securities.
 
MERRILL LYNCH BASIC VALUE FUND,
INC. ................................  Capital appreciation and, secondarily, income,
                                         through investment in securities, primarily
                                         equities, that are undervalued and therefore
                                         represent basic investment value.
 
MERRILL LYNCH CALIFORNIA INSURED
MUNICIPAL BOND FUND..................  A portfolio of Merrill Lynch California Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and California income taxes as is
                                         consistent with prudent investment management
                                         through investment in a portfolio primarily of
                                         insured California Municipal Bonds.
MERRILL LYNCH CALIFORNIA LIMITED
MATURITY MUNICIPAL BOND FUND.........  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal and California income
                                         taxes as is consistent with prudent investment
                                         management through investment in a portfolio
                                         primarily of intermediate-term investment grade
                                         California Municipal Bonds.
MERRILL LYNCH CALIFORNIA MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch California Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and California income taxes as is
                                         consistent with prudent investment management.
</TABLE>
 
                                       34
<PAGE>
<TABLE>
<S>                                    <C>
MERRILL LYNCH CAPITAL FUND, INC. ....  The highest total investment return consistent with
                                         prudent risk through a fully managed investment
                                         policy utilizing equity, debt and convertible
                                         securities.
MERRILL LYNCH COLORADO MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Trust, a series fund, whose objective is to provide
                                         as high a level of income exempt from Federal and
                                         Colorado income taxes as is consistent with
                                         prudent investment management.
MERRILL LYNCH CONNECTICUT MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Connecticut income taxes as is
                                         consistent with prudent investment management.
MERRILL LYNCH CORPORATE BOND FUND,
INC. ................................  Current income from three separate diversified
                                         portfolios of fixed income securities.
MERRILL LYNCH DEVELOPING CAPITAL
MARKETS FUND, INC. ..................  Long-term appreciation through investment in
                                         securities, principally equities, of issuers in
                                         countries having smaller capital markets.
]MERRILL LYNCH DRAGON FUND, INC......  Capital appreciation primarily through investment in
                                         equity and debt securities of issuers domiciled in
                                         developing countries located in Asia and the
                                         Pacific Basin.
MERRILL LYNCH EUROFUND...............  Capital appreciation primarily through investment in
                                         equity securities of corporations domiciled in
                                         Europe.
MERRILL LYNCH FEDERAL SECURITIES
TRUST................................  High current return through investments in U.S.
                                         Government and Government agency securities,
                                         including GNMA mortgage-backed certificates and
                                         other mortgage-backed Government securities.
MERRILL LYNCH FLORIDA LIMITED
MATURITY MUNICIPAL BOND FUND.........  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal income taxes as is
                                         consistent with prudent investment management
                                         while seeking to offer shareholders the
                                         opportunity to own securities exempt from Florida
                                         intangible personal property taxes through
</TABLE>
 
                                       35
<PAGE>
<TABLE>
<S>                                    <C>
                                         investment in a portfolio primarily of
                                         intermediate-term investment grade Florida
                                         Municipal Bonds.
MERRILL LYNCH FLORIDA MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal income taxes as is consistent with prudent
                                         investment management while seeking to offer
                                         shareholders the opportunity to own securities
                                         exempt from Florida intangible personal property
                                         taxes.
MERRILL LYNCH FUNDAMENTAL GROWTH
FUND, INC. ..........................  Long-term growth of capital through investment in a
                                         diversified portfolio of equity securities placing
                                         particular emphasis on companies that have
                                         exhibited an above-average growth rate in
                                         earnings.

MERRILL LYNCH FUNDAMENTAL
VALUE PORTFOLIO......................  A portfolio of Merrill Lynch Retirement Asset Builder
  (Available only for exchanges by       Program, Inc., a series fund, whose objective is to
certain individual retirement            provide capital appreciation and income by investing
accounts for which Merrill Lynch         in securities, with at least 65% of the portfolio's
acts as custodian)                       assets being invested in equities.

MERRILL LYNCH FUND FOR TOMORROW,
INC. ................................  Long-term growth through investment in a portfolio
                                         of good quality securities, primarily common stock,
                                         potentially positioned to benefit from demographic
                                         and cultural changes as they affect consumer
                                         markets.
MERRILL LYNCH GLOBAL ALLOCATION FUND,
INC. ................................  High total investment return, consistent with
                                         prudent risk, through a fully managed investment
                                         policy utilizing United States and foreign equity,
                                         debt and money market securities, the combination
                                         of which will be varied from time to time both
                                         with respect to the types of securities and
                                         markets in response to changing market and
                                         economic trends.
MERRILL LYNCH GLOBAL BOND FUND FOR
INVESTMENT AND RETIREMENT............  High total investment return from investment in a
                                         global portfolio of debt instruments denominated in
                                         various currencies and multinational currency
                                         units.
MERRILL LYNCH GLOBAL CONVERTIBLE
FUND, INC. ..........................  High total return from investment primarily in an
                                         internationally diversified portfolio of convertible
                                         debt securities, convertible preferred stock and
                                         "synthetic" convertible securities consisting of a
                                         combination of debt securities or preferred stock
                                         and warrants or options.
</TABLE>

 
                                       36
<PAGE>
<TABLE>
<S>                                    <C>
MERRILL LYNCH GLOBAL HOLDINGS, INC.
  (residents of Arizona must meet
investor suitability standards)......  The highest total investment return consistent with
                                         prudent risk through worldwide investment in an
                                         internationally diversified portfolio of
                                         securities.
MERRILL LYNCH GLOBAL
OPPORTUNITY PORTFOLIO...............   A portfolio of Merrill Lynch Retirement Asset Builder
  (Available only for exchanges by       Program, Inc., a series fund, whose objective is to
certain individual retirement            provide a high total investment return through an
accounts for which Merrill Lynch         investment policy utilizing United States and
acts as custodian)                       foreign equity, debt and money market 
                                         securities, the combination of which will vary
                                         depending upon changing market and economic trends.

MERRILL LYNCH GLOBAL RESOURCES
TRUST................................  Long-term growth and protection of capital from
                                         investment in securities of domestic and foreign
                                         companies that possess substantial natural
                                         resource assets.
 
MERRILL LYNCH GLOBAL SMALLCAP FUND,
INC. ................................  Long-term growth of capital by investing primarily
                                         in equity securities of companies with relatively
                                         small market capitalizations located in various
                                         foreign countries and in the United States.
 
MERRILL LYNCH GLOBAL UTILITY FUND,
INC. ................................  Capital appreciation and current income through
                                         investment of at least 65% of its total assets in
                                         equity and debt securities issued by domestic and
                                         foreign companies which are primarily engaged in
                                         the ownership or operation of facilities used to
                                         generate, transmit or distribute electricity,
                                         telecommunications, gas or water.
 
MERRILL LYNCH GROWTH FUND FOR
INVESTMENT AND RETIREMENT............  Growth of capital and, secondarily, income from
                                         investment in a diversified portfolio of equity
                                         securities placing principal emphases on those
                                         securities which management of the Fund believes
                                         to be undervalued.
 
MERRILL LYNCH HEALTHCARE FUND, INC.
  (residents of Wisconsin must meet
investor suitability standards)......  Capital appreciation through worldwide investment in
                                         equity securities of companies that derive or are
                                         expected to derive a substantial portion of their
                                         sales from products and services in healthcare.
 
MERRILL LYNCH INTERNATIONAL EQUITY
FUND.................................  Capital appreciation and, secondarily, income
                                         through investment in a diversified portfolio of
                                         equity securities of issuers located in countries
                                         other than the United States.
</TABLE>
 
                                       37
<PAGE>
<TABLE>
<S>                                    <C>
MERRILL LYNCH LATIN AMERICA
  FUND, INC. ........................  Capital appreciation through investment primarily in
                                         Latin American equity and debt securities.
 
MERRILL LYNCH MARYLAND MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide investors with as high a level of income
                                         exempt from Federal and Maryland income taxes as
                                         is consistent with prudent investment management.
 
MERRILL LYNCH MASSACHUSETTS LIMITED
  MATURITY MUNICIPAL BOND FUND.......  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal and Massachusetts
                                         income taxes as is consistent with prudent
                                         investment management through investment in a
                                         portfolio primarily of intermediate-term
                                         investment grade Massachusetts Municipal Bonds.
 
MERRILL LYNCH MASSACHUSETTS MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Massachusetts income taxes as is
                                         consistent with prudent investment management.
 
MERRILL LYNCH MICHIGAN LIMITED
MATURITY MUNICIPAL BOND FUND.........  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal and Michigan income
                                         taxes as is consistent with prudent investment
                                         management through investment in a portfolio
                                         primarily of intermediate-term investment grade
                                         Michigan Municipal Bonds.
 
MERRILL LYNCH MICHIGAN MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Michigan income taxes as is consistent
                                         with prudent investment management.
</TABLE>
 
                                       38
<PAGE>
<TABLE>
<S>                                    <C>
MERRILL LYNCH MINNESOTA MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Minnesota personal income taxes as is
                                         consistent with prudent investment management.
 
MERRILL LYNCH MUNICIPAL BOND FUND,
INC. ................................  Tax-exempt income from three separate diversified
                                         portfolios of municipal bonds.

MERRILL LYNCH NEW JERSEY LIMITED
MATURITY MUNICIPAL BOND FUND.........  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal and New Jersey income
                                         taxes as is consistent with prudent investment
                                         management through a portfolio primarily of
                                         intermediate-term investment grade New Jersey
                                         Municipal Bonds.
 
MERRILL LYNCH NEW JERSEY MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and New Jersey income taxes as is
                                         consistent with prudent investment management.
 
MERRILL LYNCH NEW MEXICO MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and New Mexico income taxes as is
                                         consistent with prudent investment management.
 
MERRILL LYNCH NEW YORK LIMITED
MATURITY MUNICIPAL BOND FUND.........  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal, New York State and New
                                         York City income taxes as is consistent with
                                         prudent investment management through investment
                                         in a portfolio primarily of intermediate-term
                                         investment grade New York Municipal Bonds.
</TABLE>
 
                                       39
<PAGE>
<TABLE>
<S>                                    <C>
MERRILL LYNCH NEW YORK MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal, New York State and New York City income
                                         taxes as is consistent with prudent investment
                                         management.
 
MERRILL LYNCH NORTH CAROLINA
MUNICIPAL BOND FUND..................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and North Carolina income taxes as is
                                         consistent with prudent investment management.
 
MERRILL LYNCH OHIO MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Ohio income taxes as is consistent
                                         with prudent investment management.
 
MERRILL LYNCH OREGON MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Oregon income taxes as is consistent
                                         with prudent investment management.
 
MERRILL LYNCH PACIFIC FUND, INC. ....  Capital appreciation by investing in equity
                                         securities of corporations domiciled in Far Eastern
                                         and Western Pacific countries, including Japan,
                                         Australia, Hong Kong and Singapore.
 
MERRILL LYNCH PENNSYLVANIA LIMITED
  MATURITY MUNICIPAL BOND FUND.......  A portfolio of Merrill Lynch Multi-State Limited
                                         Maturity Municipal Series Trust, a series fund,
                                         whose objective is to provide as high a level of
                                         income exempt from Federal and Pennsylvania income
                                         taxes as is consistent with prudent investment
                                         management through investment in a portfolio of
                                         intermediate-term investment grade Pennsylvania
                                         Municipal Bonds.
</TABLE>
 
                                       40
<PAGE>
<TABLE>
<S>                                    <C>
MERRILL LYNCH PENNSYLVANIA MUNICIPAL
BOND FUND............................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal and Pennsylvania income taxes as is
                                         consistent with prudent investment management.
 
MERRILL LYNCH PHOENIX FUND, INC. ....  Long-term growth of capital by investing in equity
                                         and fixed income securities, including tax-exempt
                                         securities, of issuers in weak financial condition
                                         or experiencing poor operating results believed to
                                         be undervalued relative to the current or
                                         prospective condition of such issuer.
MERRILL LYNCH QUALITY 
BOND PORTFOLIO......................   A portfolio of Merrill Lynch Retirement Asset Builder
  (Available only for exchanges by       Program, Inc., a series fund, whose objective is to
certain individual retirement            provide a high level of current income through
accounts for which Merrill Lynch         investment in a diversified portfolio of debt
acts as custodian)                       obligations, such as corporate bonds and notes,
                                         convertible securities, preferred stocks and 
                                         governmental obligations. 

MERRILL LYNCH SHORT-TERM GLOBAL
INCOME FUND, INC. ...................  As high a level of current income as is consistent
                                         with prudent investment management from a global
                                         portfolio of high quality debt securities
                                         denominated in various currencies and
                                         multinational currency units and having remaining
                                         maturities not exceeding three years.
 
MERRILL LYNCH SPECIAL VALUE
  FUND, INC. ........................  Long-term growth of capital from investments in
                                         securities, primarily common stocks, of relatively
                                         small companies believed to have special
                                         investment value and emerging growth companies
                                         regardless of size.
 
MERRILL LYNCH STRATEGIC
  DIVIDEND FUND......................  Long-term total return from investment in dividend
                                         paying common stocks which yield more than Standard
                                         & Poor's 500 Composite Stock Price Index.
 
MERRILL LYNCH TECHNOLOGY
  FUND, INC. ........................  Capital appreciation through worldwide investment in
                                         equity securities of companies that derive or are
                                         expected to derive a substantial portion of their
                                         sales from products and services in technology.
 
MERRILL LYNCH TEXAS MUNICIPAL BOND
FUND.................................  A portfolio of Merrill Lynch Multi-State Municipal
                                         Series Trust, a series fund, whose objective is to
                                         provide as high a level of income exempt from
                                         Federal income taxes as is consistent with prudent
                                         investment management by
</TABLE>
 
                                       41
<PAGE>
<TABLE>
<S>                                    <C>
                                         investing primarily in a portfolio of long-term,
                                         investment grade obligations issued by the State
                                         of Texas, its political subdivisions, agencies and
                                         instrumentalities.
 
MERRILL LYNCH UTILITY INCOME FUND,
INC. ................................  High current income through investment in equity and
                                         debt securities issued by companies which are
                                         primarily engaged in the ownership or operation of
                                         facilities used to generate, transmit or
                                         distribute electricity, telecommunications, gas or
                                         water.
 
MERRILL LYNCH U.S. GOVERNMENT
SECURITIES PORTFOLIO................   A portfolio of Merrill Lynch Retirement Asset Builder
  (Available only for exchanges by       Program, Inc., a series fund, whose objective is to
certain individual retirement            provide a high current return through investments in
accounts for which Merrill Lynch         U.S. Government and government agency securities,
acts as custodian)                       including GNMA mortgage-backed certificates and other
                                         mortgage-backed government securities.

MERRILL LYNCH WORLD INCOME
  FUND, INC. ........................  High current income by investing in a global
                                         portfolio of fixed income securities denominated in
                                         various currencies, including multinational
                                         currencies.
</TABLE>
 
Class A Share Money Market Funds:
 
<TABLE>
<S>                                    <C>
MERRILL LYNCH READY ASSETS TRUST.....  Preservation of capital, liquidity and the highest
                                         possible current income consistent with the
                                         foregoing objectives from the short-term money
                                         market securities in which the Trust invests.
 
MERRILL LYNCH RETIREMENT RESERVES
  MONEY FUND (available only for
  exchanges within certain retirement
plans)...............................  Currently the only portfolio of Merrill Lynch
                                         Retirement Series Trust, a series fund, whose
                                         objectives are current income, preservation of
                                         capital and liquidity available from investing in
                                         a diversified portfolio of short-term money market
                                         securities.
 
MERRILL LYNCH U.S.A. GOVERNMENT
RESERVES.............................  Preservation of capital, current income and
                                         liquidity available from investing in direct
                                         obligations of the U.S. Government and repurchase
                                         agreements relating to such securities.
 
MERRILL LYNCH U.S. TREASURY MONEY
FUND.................................  Preservation of capital, liquidity and current
                                         income through investment exclusively in a
                                         diversified portfolio of short-term marketable
                                         securities which are direct obligations of the
                                         U.S. Treasury.
</TABLE>
 
                                       42
<PAGE>
Class B, Class C and Class D Share Money Market Funds:
 
<TABLE>
<S>                                    <C>
MERRILL LYNCH GOVERNMENT FUND........  A portfolio of Merrill Lynch Funds of Institutions
                                         Series, a series fund, whose objective is to provide
                                         current income consistent with liquidity and
                                         security of principal from investment in
                                         securities issued or guaranteed by the U.S.
                                         Government, its agencies and instrumentalities and
                                         in repurchase agreements secured by such obli-
                                         gations.
 
MERRILL LYNCH INSTITUTIONAL FUND.....  A portfolio of Merrill Lynch Funds for Institutions
                                         Series, a series fund, whose objective is to provide
                                         maximum current income consistent with liquidity
                                         and the maintenance of a high quality portfolio of
                                         money market securities.
 
MERRILL LYNCH INSTITUTIONAL TAX-
EXEMPT FUND..........................  A portfolio of Merrill Lynch Funds for Institutions
                                         Series, a series fund, whose objective is to provide
                                         current income exempt from Federal income taxes,
                                         preservation of capital and liquidity available
                                         from investing in a diversified portfolio of
                                         short-term, high quality municipal bonds.
 
MERRILL LYNCH TREASURY FUND..........  A portfolio of Merrill Lynch Funds for Institutions
                                         Series, a series fund, whose objective is to provide
                                         current income consistent with liquidity and
                                         security of principal from investment in direct
                                         obligations of the U.S. Treasury and up to 10% of
                                         its total assets in repurchase agreements secured
                                         by such obligations.
</TABLE>
 
    Before effecting an exchange, shareholders should obtain a currently
effective prospectus of the fund into which the exchange is to be made.
 
    To exercise the exchange privilege, shareholders should contact their
Merrill Lynch financial consultant, who will advise the Trust of the exchange.
Shareholders of the Fund, and shareholders of the other funds described above
with shares for which certificates have not been issued, may exercise the
exchange privilege by wire through their securities dealers. The Trust reserves
the right to require a properly completed Exchange Application. This exchange
privilege may be modified or terminated in accordance with the rules of the
Commission. The Trust reserves the right to limit the number of times an
investor may exercise the exchange privilege. Certain funds may suspend the
continuous offering of their shares at any time and may thereafter resume such
offering from time to time. The exchange privilege is available only to U.S.
shareholders in states where the exchange legally may be made.
 
                                       43
<PAGE>
                            DISTRIBUTIONS AND TAXES
 
    The Trust intends to continue to qualify the Fund for the special tax
treatment afforded regulated investment companies ("RICs") under the Internal
Revenue Code of 1986, as amended (the "Code"). If it so qualifies, in any
taxable year in which it distributes at least 90% of its taxable net income and
90% of its tax-exempt net income (see below), the Fund (but not its
shareholders) will not be subject to Federal income tax to the extent that it
distributes its net investment income and net realized capital gains. The Trust
intends to cause the Fund to distribute substantially all of such income.
 
    As discussed in the Fund's Prospectus, the Trust may establish other series
in addition to the Fund (together with the Funds, the "Series"). Each Series of
the Trust is treated as a separate corporation for Federal income tax purposes.
Each Series therefore is considered to be a separate entity in determining its
treatment under the rules for RICs described in the Prospectus. Losses in one
Series do not offset gains in another Series and the requirements (other than
certain organizational requirements) for qualifying for RIC status are
determined at the Series level rather than at the Trust level.
 
    The Code requires each RIC to pay a nondeductible 4% excise tax to the
extent the RIC does not distribute, during each calendar year, 98% of its
ordinary income, determined on a calendar year basis, and 98% of its capital
gains, determined, in general, on an October 31 year end, plus certain
undistributed amounts from previous years. The required distributions, however,
are based only on the taxable income of a RIC. The excise tax, therefore,
generally will not apply to the tax-exempt income of a RIC, such as the Fund,
that pays exempt-interest dividends.
 
    The Trust intends to continue to qualify the Fund to pay "exempt-interest
dividends" as defined in Section 852(b)(5) of the Code. Under such section if,
at the close of each quarter of the Fund's taxable year, at least 50% of the
value of its total assets consists of obligations exempt from Federal income tax
("tax-exempt obligations") under Section 103(a) of the Code (relating generally
to obligations of a state or local governmental unit), the Fund shall be
qualified to pay exempt-interest dividends to its Class A, Class B, Class C and
Class D shareholders (together, the "shareholders"). Exempt-interest dividends
are dividends or any part thereof paid by the Fund which are attributable to
interest on tax-exempt obligations and designated by the Trust as
exempt-interest dividends in a written notice mailed to the Fund's shareholders
within 60 days after the close of the Fund's taxable year. For this purpose, the
Fund will allocate interest from tax-exempt obligations (as well as ordinary
income, capital gains and tax preference items, discussed below) among the Class
A, Class B, Class C and Class D shareholders according to a method (which it
believes is consistent with the Commission's exemptive order permitting the
issuance and sale of multiple classes of shares) that is based on the gross
income allocable to Class A, Class B, Class C and Class D shareholders during
the taxable year, or such other method as the Internal Revenue Service may
prescribe. To the extent that the dividends distributed to the Fund's
shareholders are derived from interest income exempt from Federal income tax
under Code Section 103(a), and are properly designated as exempt-interest
dividends, they will be excludable from a shareholders's gross income for
Federal income tax purposes. Exempt-interest dividends are included, however, in
determining the portion, if any, of a person's Social Security benefits and
railroad retirement benefits subject to Federal income tax. Interest on
indebtedness incurred or continued to purchase or carry shares of a RIC paying
exempt-interest dividends, such as the Fund, will not be deductible by the
investor for Federal income tax purposes to the extent attributable to
exempt-interest dividends. Shareholders are advised to consult their tax
advisers with respect to whether exempt-interest
 
                                       44
<PAGE>
   
dividends retain the exclusion under Code Section 103(a) if a shareholder would
be treated as a "substantial user" or "related person" under Code Section 147(a)
with respect to property financed with the proceeds of an issue of "industrial
development bonds" or "private activity bonds", if any, held by the Fund.
    
 
   
    To the extent that the Fund's distributions are derived from interest on its
taxable investments or from an excess of net short-term capital gains over net
long-term capital losses ("ordinary income dividends"), such distributions are
considered ordinary income for Federal income tax purposes. Distributions, if
any, of net long-term capital gains from the sale of securities or from certain
transactions in futures or options ("capital gain dividends") are taxable as
long-term capital gains for Federal income tax purposes, regardless of the
length of time the shareholder has owned Fund shares. Distributions by the Fund,
whether from exempt-interest income, ordinary income or capital gains, are not
eligible for the dividends received deduction allowed to corporations under the
Code. Under the Revenue Reconciliation Act of 1993, all or a portion of the
Fund's gain from the sale or redemption of tax-exempt obligations purchased at a
market discount will be treated as ordinary income rather than capital gain.
This rule may increase the amount of ordinary income dividends received by
shareholders. Distributions in excess of the Fund's earnings and profits first
will reduce the adjusted tax basis of a holder's shares and, after such adjusted
tax basis is reduced to zero, will constitute capital gains to such holder
(assuming the shares are held as a capital asset). Any loss upon the sale or
exchange of Fund shares held for six months or less will be treated as long-term
capital loss to the extent of any capital gain dividends received by the
shareholder. In addition, such loss will be disallowed to the extent of any
exempt-interest dividends received by the shareholder. If the Fund pays a
dividend in January which was declared in the previous October, November or
December to shareholders of record on a specified date in one of such months,
then such dividend will be treated for tax purposes as being paid by the Fund
and received by its shareholders on December 31 of the year in which such
dividend was declared.
    
 
   
    The Code subjects interest received on certain otherwise tax-exempt
securities to an alternative minimum tax. The alternative minimum tax applies to
interest received on "private activity bonds" issued after August 7, 1986.
Private activity bonds are bonds which, although tax-exempt, are used for
purposes other than those generally performed by governmental units and which
benefit non-governmental entities (e.g., bonds used for industrial development
or housing purposes). Income received on such bonds is classified as an item of
"tax preference", which could subject investors in such bonds, including
shareholders of the Fund, to an alternative minimum tax. The Fund will purchase
such "private activity bonds", and the Trust will report to shareholders within
60 days after the Fund's taxable year-end the portion of the Fund's dividends
declared during the year which constitutes an item of tax preference for
alternative minimum tax purposes. The Code further provides that corporations
are subject to an alternative minimum tax based, in part, on certain differences
between taxable income as adjusted for other tax preferences and the
corporation's "adjusted current earnings", which more closely reflect a
corporation's economic income. Because an exempt-interest dividend paid by the
Fund will be included in adjusted current earnings, a corporate shareholder may
be required to pay alternative minimum tax on exempt-interest dividends paid by
the Fund.
    
 
    The Revenue Reconciliation Act of 1993 has added new marginal tax brackets
of 36% and 39.6% for individuals and has created a graduated structure of 26%
and 28% for the alternative minimum tax applicable to individual taxpayers.
These rate increases may affect an individual investor's after-tax
 
                                       45
<PAGE>
return from an investment in the Fund as compared with such investor's return
from taxable investments.
 
   
    No gain or loss will be recognized by Class B shareholders on the conversion
of their Class B shares into Class D shares. A shareholder's basis in the Class
D shares acquired will be the same as such shareholder's basis in the Class B
shares converted, and the holding period of the acquired Class D shares will
include the holding period for the converted Class B shares.
    
 
    If a shareholder exercises an exchange privilege within 90 days of acquiring
the shares, then the loss the shareholder can recognize on the exchange will be
reduced (or the gain increased) to the extent the sales charge paid to the Fund
reduces any sales charge the shareholder would have owed upon purchase of the
new shares in the absence of the exchange privilege. Instead, such sales charge
will be treated as an amount paid for the new shares.
 
    A loss realized on a sale or exchange of shares of the Fund will be
disallowed if other Fund shares are acquired (whether through the automatic
reinvestment of dividends or otherwise) within a 61-day period beginning 30 days
before and ending 30 days after the date that the shares are disposed of. In
such a case, the basis of the shares acquired will be adjusted to reflect the
disallowed loss.
 
    Ordinary income dividends paid to shareholders who are nonresident aliens or
foreign entities will be subject to a 30% United States withholding tax under
existing provisions of the Code applicable to foreign individuals and entities
unless a reduced rate of withholding or a withholding exemption is provided
under applicable treaty law. Nonresident shareholders are urged to consult their
own tax advisers concerning the applicability of the United States withholding
tax.
 
    Under certain Code provisions, some shareholders may be subject to a 31%
withholding tax on certain ordinary income dividends and on capital gain
dividends and redemption payments ("backup withholding"). Generally,
shareholders subject to backup withholding will be those for whom no certified
taxpayer identification number is on file with the Trust or who, to the Trust's
knowledge, have furnished an incorrect number. When establishing an account, an
investor must certify under penalty of perjury that such number is correct and
that such investor is not otherwise subject to backup withholding.
 
    The Code provides that every person required to file a tax return must
include for information purposes on such return the amount of exempt-interest
dividends received from all sources (including the Fund) during the taxable
year.
 
ENVIRONMENTAL TAX
 
    The Code imposes a deductible tax (the "Environmental Tax") on a
corporation's modified alternative minimum taxable income (computed without
regard to the alternative tax net operating loss deduction and the deduction for
the Environmental Tax) at a rate of $12 per $10,000 (0.12%) of alternative
minimum taxable income in excess of $2,000,000. The Environmental Tax is imposed
for taxable years beginning after December 31, 1986 and before January 1, 1996.
The Environmental Tax is imposed even if the corporation is not required to pay
an alternative minimum tax because the corporation's regular income tax
liability exceeds its minimum tax liability. The Code provides, however, that a
RIC, such as the Fund, is not subject to the Environmental Tax. However, exempt-
interest dividends paid by the Fund that create alternative minimum taxable
income for corporate
 
                                       46
<PAGE>
shareholders (as described above) may subject corporate shareholders of the Fund
to the Environmental Tax.
 
TAX TREATMENT OF FUTURES AND OPTIONS TRANSACTIONS
 
    The Fund may purchase or sell municipal bond index futures contracts and
interest rate futures contracts on U.S. Government securities ("financial
futures contracts"). The Fund also may purchase and write call and put options
on such financial futures contracts. In general, unless an election is available
to the Fund or an exception applies, such options and financial futures
contracts that are "Section 1256 contracts" will be "marked to market" for
Federal income tax purposes at the end of each taxable year, i.e., each such
option or financial futures contract will be treated as having been sold for its
fair market value on the last day of the taxable year and any gain or loss
attributable to Section 1256 contracts will be 60% long-term and 40% short-term
capital gain or loss. Application of these rules to Section 1256 contracts held
by the Fund may alter the timing and character of distributions to shareholders.
 
    Code Section 1092, which applies to certain "straddles", may affect the
taxation of the Fund's transactions in financial futures contracts and related
options. Under Section 1092, the Fund may be required to postpone recognition
for tax purposes of losses incurred in certain closing transactions in financial
futures contracts or the related options.
 
    One of the requirements for qualification as a RIC 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 effecting closing transactions within three months after entering
into an option or financial futures contract.
 
    The exemption from Federal income tax for exempt-interest dividends does not
necessarily result in an exemption for such dividends under the income or other
tax laws of any state or local taxing authority. Shareholders are advised to
consult their own tax advisers concerning state and local tax matters.
 
                              -------------------
 
    The foregoing is a general and abbreviated summary of the applicable
provisions of the Code and Treasury regulations presently in effect. For the
complete provisions, reference should be made to the pertinent Code sections and
the Treasury regulations promulgated thereunder. The Code and the Treasury
regulations are subject to change by legislative or administrative action either
prospectively or retroactively.
 
    Shareholders are urged to consult their tax advisers regarding specific
questions as to Federal, foreign, state, or local taxes.
 
                                PERFORMANCE DATA
 
   
    From time to time, the Fund may include its average annual total return and
other total return data, as well as yield and tax-equivalent yield, in
advertisements or information furnished to present or prospective shareholders.
From time to time, the Fund may include the Fund's Morningstar Publications Inc.
risk-adjusted performance ratings in advertisements or supplemental sales
literature. Total return, yield and tax-equivalent yield figures are based on
the Fund's historical performance and are not
    
 
                                       47
<PAGE>
   
intended to indicate future performance. Average annual total return, yield and
tax-equivalent yield are determined separately for Class A, Class B, Class C and
Class D shares in accordance with formulas specified by the Commission.
    
 
    Average annual total return quotations for the specified periods are
computed by finding the average annual compounded rates of return (based on net
investment income and any realized and unrealized capital gains or losses on
portfolio investments over such periods) that would equate the initial amount
invested to the redeemable value of such investment at the end of each period.
Average annual total return is computed assuming all dividends and distributions
are reinvested and taking into account all applicable recurring and nonrecurring
expenses, including the maximum sales charge in the case of Class A and Class D
shares and the CDSC that would be applicable to a complete redemption of the
investment at the end of the specified period in the case of Class B and Class C
shares.
 
    The Fund also may quote annual, average annual and annualized total return
and aggregate total return performance data, both as a percentage and as a
dollar amount based on a hypothetical $1,000 investment, for various periods
other than those noted below. Such data will be computed as described above,
except that (1) as required by the periods of the quotations, actual annual,
annualized or aggregate data, rather than average annual data, may be quoted and
(2) the maximum applicable sales charges will not be included with respect to
annual or annualized rates of return calculations. Aside from the impact on the
performance data calculations of including or excluding the maximum applicable
sales charges, actual annual or annualized total return data generally will be
lower than average annual total return data since the average rates of return
reflect compounding of return; aggregate total return data generally will be
higher than average annual total return data since the aggregate rates of return
reflect compounding over a longer period of time.
 
   
    Set forth below is total return, yield and tax-equivalent yield information
for the Class A, Class B, Class C and Class D shares of the Fund for the periods
indicated.
    
   
<TABLE><CAPTION>
                                                CLASS A SHARES                        CLASS B SHARES
                                      ----------------------------------    ----------------------------------
<S>                                   <C>                  <C>              <C>                  <C>
                                                            REDEEMABLE                            REDEEMABLE
                                                            VALUE OF A                            VALUE OF A
                                       EXPRESSED AS A      HYPOTHETICAL      EXPRESSED AS A      HYPOTHETICAL
                                      PERCENTAGE BASED        $1,000        PERCENTAGE BASED        $1,000
                                      ON A HYPOTHETICAL    INVESTMENT AT    ON A HYPOTHETICAL    INVESTMENT AT
                                           $1,000           THE END OF           $1,000           THE END OF
              PERIOD                     INVESTMENT         THE PERIOD         INVESTMENT         THE PERIOD
- -----------------------------------   -----------------    -------------    -----------------    -------------
 
<CAPTION>
                                                            AVERAGE ANNUAL TOTAL RETURN
                                                    (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                                   <C>                  <C>              <C>                  <C>
One Year Ended October 31, 1994....         (3.47)%          $  965.30            (3.71)%          $  962.90
Five Years Ended October 31,
 1994..............................          6.56%           $1,374.00             6.45%           $1,367.00
Inception (November 26, 1986) to 
 October 31, 1994..................                                                5.36%           $1,513.00
Inception (October 31, 1988) to 
 October 31, 1994..................          6.30%           $1,443.10
</TABLE>
    
 
                                       48
<PAGE>
   
<TABLE><CAPTION>
                                             CLASS A SHARES                         CLASS B SHARES
                                   -----------------------------------    -----------------------------------
<S>                                <C>                   <C>              <C>                   <C>
                                                          REDEEMABLE                             REDEEMABLE
                                                          VALUE OF A                             VALUE OF A
                                    EXPRESSED AS A       HYPOTHETICAL      EXPRESSED AS A       HYPOTHETICAL
                                   PERCENTAGE BASED         $1,000        PERCENTAGE BASED         $1,000
                                   ON A HYPOTHETICAL     INVESTMENT AT    ON A HYPOTHETICAL     INVESTMENT AT
                                        $1,000            THE END OF           $1,000            THE END OF
             PERIOD                   INVESTMENT          THE PERIOD         INVESTMENT          THE PERIOD
- --------------------------------   -----------------     -------------    -----------------     -------------
 
<CAPTION>
                                                              ANNUAL TOTAL RETURN
                                                  (EXCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                                <C>                   <C>              <C>                   <C>
Year Ended October 31, 1994.....         (2.49)%           $  975.10            (2.79)%           $  972.10
1993............................         13.01%            $1,130.10            12.78%            $1,127.80
1992............................          7.16%            $1,071.60             6.72%            $1,067.20
1991............................         10.90%            $1,109.00            10.56%            $1,105.60
1990............................          5.99%            $1,059.90             5.68%            $1,056.80
1989............................          5.03%            $1,050.30             4.59%            $1,045.90
1988............................                                                10.95%            $1,109.50
Inception (November 26, 1986) 
 to October 31, 1987............                                                (4.62)%           $  953.80
<CAPTION>
 
                                                             AGGREGATE TOTAL RETURN
                                                  (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                                <C>                   <C>              <C>                   <C>
Inception (November 26, 1986)
 to October 31, 1994............                                                51.30%            $1,513.00
Inception (October 31, 1988) 
 to October 31, 1994............         44.31%            $1,443.10
<CAPTION>
                                                                     YIELD
<S>                                <C>                   <C>              <C>                   <C>
30 days ended October 31,
1994............................         4.74%                                  4.47%
30 days ended December 31,
1994............................         5.16%                                  4.91%
<CAPTION>
                                                             TAX-EQUIVALENT YIELD*
<S>                                <C>                   <C>              <C>                   <C>
30 days ended October 31,
1994............................         6.58%                                  6.21%
30 days ended December 31,
1994............................         7.17%                                  6.82%
</TABLE>
    
   
<TABLE><CAPTION>
                                             CLASS C SHARES                           CLASS D SHARES
                                  -------------------------------------    -------------------------------------
<S>                               <C>                  <C>                 <C>                  <C>
                                                          REDEEMABLE                               REDEEMABLE
                                                          VALUE OF A                               VALUE OF A
                                   EXPRESSED AS A        HYPOTHETICAL       EXPRESSED AS A        HYPOTHETICAL
                                  PERCENTAGE BASED          $1,000         PERCENTAGE BASED          $1,000
                                  ON A HYPOTHETICAL     INVESTMENT AT      ON A HYPOTHETICAL     INVESTMENT AT
                                       $1,000             THE END OF            $1,000             THE END OF
            PERIOD                   INVESTMENT           THE PERIOD          INVESTMENT           THE PERIOD
- -------------------------------   -----------------    ----------------    -----------------    ----------------
<CAPTION>
                                                           AVERAGE ANNUAL TOTAL RETURN
                                                   (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                               <C>                  <C>                 <C>                  <C>
Inception (October 21, 1994) to
October 31, 1994...............         (46.54)%           $ 983.00              (46.53)%           $ 983.00
 
<CAPTION>
                                                               ANNUAL TOTAL RETURN
                                                   (EXCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                               <C>                  <C>                 <C>                  <C>
Inception (October 21, 1994) to
October 31, 1994...............          (0.71)%           $ 992.90               (0.71)%           $ 992.90
<CAPTION>
                                                              AGGREGATE TOTAL RETURN
                                                   (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                               <C>                  <C>                 <C>                  <C>
Inception (October 21, 1994) to
October 31, 1994...............          (1.70)%           $ 983.00               (1.70)%           $ 983.00
<CAPTION>
                                                                      YIELD
<S>                               <C>                  <C>                 <C>                  <C>
30 days ended December 31,
1994...........................            4.94%                                    5.11%
<CAPTION>
                                                              TAX-EQUIVALENT YIELD*
<S>                               <C>                  <C>                 <C>                  <C>
30 days ended December 31,
1994...........................            6.86%                                    7.10%
</TABLE>
    
 
- -------------------
 
   
* Based upon a Federal income tax rate of 28%.
    
 
                                       49
<PAGE>
    In order to reflect the reduced sales charges in the case of Class A or
Class D shares or the waiver of the CDSC in the case of Class B or Class C
shares applicable to certain investors, as described under "Purchase of Shares"
and "Redemption of Shares", respectively, the total return data quoted by the
Fund in advertisements directed to such investors may take into account the
reduced, and not the maximum, sales charge or may take into account the CDSC and
therefore may reflect greater total return since, due to the reduced sales
charges or the waiver of sales charges, a lower amount of expenses is deducted.
 
                              GENERAL INFORMATION
 
DESCRIPTION OF SERIES AND SHARES
 
    The Declaration of Trust provides that the Trust shall comprise separate
Series, each of which will consist of a separate portfolio which will issue
separate shares. The Trustees are authorized to create an unlimited number of
Series and, with respect to each Series, to issue an unlimited number of full
and fractional shares of beneficial interest, par value $.10 per share, of
different classes and to divide or combine the shares into a greater or lesser
number of shares without thereby changing the proportionate beneficial interests
in the Series. Shareholder approval is not necessary for the authorization of
additional Series or classes of a Series of the Trust. At the date of this
Statement of Additional Information, the Fund is the only Series of the Trust.
Also at the date of this Statement of Additional Information, the shares of the
Fund are divided into Class A, Class B, Class C and Class D shares. All class
shares represent interests in the same assets of the Fund and have identical
voting, dividend, liquidation and other rights and the same terms and conditions
except that the Class B, Class C and Class D shares bear certain expenses
related to the account maintenance and/or distribution of such shares and have
exclusive voting rights with respect to matters relating to such account
maintenance and/or distribution expenditures. See "Purchase of Shares". The
Trust has received an order from the Commission permitting the issuance and sale
of multiple classes of shares.
 
   
    All shares of the Trust have equal voting rights, except that only shares of
the respective Series are entitled to vote on matters concerning only that
Series and, as noted above, a class of shares of a Series will have exclusive
voting rights with respect to matters relating to the account maintenance and/or
distribution expenses being borne solely by such class. Each issued and
outstanding share is entitled to one vote and to participate equally in
dividends and distributions declared by the respective Series and in net assets
of such Series upon liquidation or dissolution remaining after satisfaction of
outstanding liabilities except that, as noted above, expenses related to the
account maintenance and/or distribution of the shares of a class of a Series are
borne solely by such class. There normally will be no meetings of shareholders
for the purpose of electing Trustees unless and until such time as less than a
majority of the Trustees holding office have been elected by shareholders, at
which time the Trustees then in office will call a shareholders' meeting for the
election of Trustees. Shareholders, in accordance with the terms of the
Declaration of Trust, may cause a meeting of shareholders to be held for the
purpose of voting on the removal of Trustees. Also, the Trust will be required
to call a special meeting of shareholders of a Series in accordance with the
requirements of the Investment Company Act to seek approval of new management
and advisory arrangements, of a material increase in account maintenance and
distribution fees or of a change in the fundamental policies, objectives or
restrictions of a Series.
    
 
    The obligations and liabilities of a particular Series are restricted to the
assets of that Series and do not extend to the assets of the Trust generally.
The shares of each Series, when issued, will be fully paid
 
                                       50
<PAGE>
and nonassessable and have no preemptive rights. Redemption and conversion
rights are discussed elsewhere herein and in the Prospectus. Shares do not have
cumulative voting rights and the holders of more than 50% of the shares of the
Trust voting for the election of Trustees can elect all of the Trustees if they
choose to do so and in such event the holders of the remaining shares would not
be able to elect any Trustees. No amendments may be made to the Declaration of
Trust without the affirmative vote of a majority of the outstanding shares of
the Trust.
 
COMPUTATION OF OFFERING PRICE PER SHARE
 
   
    An illustration of the computation of the initial offering price for Class
A, Class B, Class C and Class D shares of the Fund based on the current offering
period value of the Fund's net assets and number of shares outstanding on
October 31, 1994 is set forth below.
    
 
   
<TABLE><CAPTION>
                                  CLASS A         CLASS B      CLASS C    CLASS D
                                ------------   -------------   --------   --------
<S>                             <C>            <C>             <C>        <C>
Net Assets...................   $ 27,652,527   $ 142,152,159   $  1,058   $ 69,891
                                ------------   -------------   --------   --------
                                ------------   -------------   --------   --------
Number of Shares
Outstanding..................      2,874,765      14,779,964        110      7,266
                                ------------   -------------   --------   --------
                                ------------   -------------   --------   --------
Net Asset Value Per Share
  (net assets divided by
  number of shares
outstanding).................   $       9.62   $        9.62   $   9.62   $   9.62
                                ------------   -------------   --------   --------
Sales Charge (1.00% of
  offering price (1.01% of
  net asset value per
share))*.....................   $       0.10   $          **   $     **   $   0.10
                                ------------   -------------   --------   --------
Offering Price...............   $       9.72   $        9.62   $   9.62   $   9.72
                                ------------   -------------   --------   --------
</TABLE>
    
 
- ------------
 
 * Rounded to the nearest one-hundredth percent; assumes maximum sales charge is
   applicable.
 
   
** Class B and Class C shares are not subject to an initial sales charge but may
   be subject to a CDSC on redemption. See "Purchase of Shares--Deferred Sales
   Charge Alternative--Class B Shares" in the Prospectus.
    
 
INDEPENDENT AUDITORS
 
    Deloitte & Touche LLP, 117 Campus Drive, Princeton, New Jersey 08540-6619,
have been selected as the independent auditors of the Trust. The selection of
independent auditors is subject to ratification by the Trust's shareholders. In
addition, the employment of such auditors may be terminated without any penalty
by the vote of a majority of the outstanding shares of the Trust at a meeting
called for the purpose of terminating such employment. The independent auditors
are responsible for auditing the annual financial statements of the Fund.
 
CUSTODIAN
 
    State Street Bank and Trust Company, P.O. Box 351, Boston, Massachusetts
02101, acts as the Custodian of the Trust's assets with respect to the Fund. The
Custodian is responsible for safeguarding and controlling the Fund's cash and
securities, handling the delivery of securities and collecting interest on the
Fund's investments.
 
                                       51
<PAGE>
TRANSFER AGENT
 
   
    Financial Data Services, Inc., 4800 Deer Lake Drive East, Jacksonville,
Florida 32246-6484, acts as the Fund's Transfer Agent. The Transfer Agent is
responsible for the issuance, transfer and redemption of shares and the opening,
maintenance and servicing of shareholder accounts. See "Management of the
Trust--Transfer Agency Services" in the Prospectus.
    
 
LEGAL COUNSEL
 
    Brown & Wood, One World Trade Center, New York, New York 10048-0557, is
counsel for the Trust.
 
REPORTS TO SHAREHOLDERS
 
    The fiscal year of the Fund ends on October 31 of each year. The Trust sends
to shareholders of the Fund at least semi-annually reports showing the Fund's
portfolio and other information. An annual report, containing financial
statements audited by independent auditors, is sent to shareholders each year.
After the end of each year shareholders will receive Federal income tax
information regarding dividends and capital gains distributions.
 
ADDITIONAL INFORMATION
 
    The Prospectus and this Statement of Additional Information do not contain
all of the information set forth in the Registration Statement and the exhibits
relating thereto, which the Trust has filed with the Securities and Exchange
Commission, Washington, D.C., under the Securities Act of 1933 and the
Investment Company Act, to which reference is hereby made.
 
    Under a separate agreement, Merrill Lynch has granted the Trust the right to
use the "Merrill Lynch" name and has reserved the right to withdraw its consent
to the use of such name by the Trust at any time or to grant the use of such
name to any other company, and the Trust has granted Merrill Lynch, under
certain conditions, the use of any other name it might assume in the future,
with respect to any corporation organized by Merrill Lynch.
 
                              -------------------
 
    The Declaration of Trust establishing the Trust dated August 14, 1986, a
copy of which, together with all amendments thereto (the "Declaration"), is on
file in the office of the Secretary of the Commonwealth of Massachusetts,
provides that the name "Merrill Lynch Municipal Series Trust" refers to the
Trustees under the Declaration collectively as Trustees, but not as individuals
or personally; and no Trustee, shareholder, officer, employee or agent of the
Trust shall be held to any personal liability; nor shall resort be had to their
private property for the satisfaction of any obligation or claim of the Trust,
but the "Trust Property" (as defined in the Declaration) only shall be liable.
 
   
    To the knowledge of the Trust, no person or entity owned beneficially 5% or
more of the Fund's shares on February 1, 1995.
    
 
                                       52
<PAGE>
                                    APPENDIX
                           RATINGS OF MUNICIPAL BONDS
 
DESCRIPTIONS OF MOODY'S INVESTORS SERVICE, INC.'S ("MOODY'S") MUNICIPAL BOND
RATINGS
 
    Aaa-Bonds which are rated "Aaa" are judged to be of the best quality. They
carry the smallest degree of investment risk and generally are referred to as
"gilt edge". Interest payments are protected by a large or by an exceptionally
stable margin and principal is secure. While the various protective elements are
likely to change, such changes as can be visualized are most unlikely to impair
the fundamentally strong position of such issues.
 
    Aa-Bonds which are rated "Aa" are judged to be of high quality by all
standards. Together with the "Aaa" group they comprise what are generally known
as high grade bonds. They are rated lower than the best bonds because margins of
protection may not be as large as in "Aaa" securities or fluctuation of
protective elements may be of greater amplitude or there may be other elements
present which make the long-term risks appear somewhat larger than in "Aaa"
securities.
 
    A-Bonds which are rated "A" possess many favorable investment attributes and
are to be considered as upper medium grade obligations. Factors giving security
to principal and interest are considered adequate, but elements may be present
which suggest a susceptibility to impairment sometime in the future.
 
   
    Baa-Bonds which are rated "Baa" are considered as medium grade obligations,
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.
    
 
   
    Ba-Bonds which are rated "Ba" are judged to have speculative elements; their
future cannot be considered as well assured. Often the protection of interest
and principal payments may be very moderate and thereby not well safeguarded
during both good and bad times over the future. Uncertainty of position
characterizes bonds in this class.
    
 
   
    B-Bonds which are rated "B" generally lack characteristics of the desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.
    
 
   
    Caa-Bonds which are rated "Caa" are of poor standing. Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.
    
 
   
    Ca-Bonds which are rated "Ca" represent obligations which are speculative in
a high degree. Such issues are often in default or have other marked
shortcomings.
    
 
   
    C-Bonds which are rated "C" are the lowest rated class of bonds, and issues
so rated can be regarded as having extremely poor prospects of ever attaining
any real investment standing.
    
 
Note: Those bonds in the Aa, A, Baa, Ba and B groups which Moody's believes
possess the strongest investment attributes are designated by the symbols Aa1,
A1, Baa1, Ba1 and B1.
 
                                       53
<PAGE>
    Conditional Rating: Bonds for which the security depends upon the completion
of some act or the fulfillment of some condition are rated conditionally. These
are bonds secured by (a) earnings of projects under construction, (b) earnings
of projects unseasoned in operations experience, (c) rentals which begin when
facilities are completed, or (d) payments to which some other limiting condition
attaches. Parenthetical rating denotes probable credit stature upon completion
of construction or elimination of basis of condition.
 
    Rating Refinements: Moody's may apply numerical modifiers 1, 2 and 3 in each
generic rating classification from Aa through B in its municipal bond rating
system. The modifier 1 indicates that the security ranks in the higher end of
its generic rating category; the modifier 2 indicates a mid-range ranking; and
the modifier 3 indicates that the issue ranks in the lower end of its generic
rating category.
 
    Short-term Notes: The four ratings of Moody's for short-term notes are
MIG-1/VMIG-1, MIG-2/VMIG-2, MIG-3/VMIG-3 and MIG-4/VMIG-4; MIG-1/VMIG-1 denotes
"best quality . . . strong protection by established cash flows"; MIG-2/VMIG-2
denotes "high quality" with ample margins of protection; MIG-3/VMIG-3 denotes
"favorable quality . . . but . . . lacking the undeniable strength of the
preceding grades"; MIG-4/VMIG-4 denotes "adequate quality . . . [p]rotection
commonly regarded as required of an investment security is present . . . there
is specific risk."
 
DESCRIPTION OF MOODY'S CORPORATE BOND RATINGS
 
    Excerpts from Moody's description of its corporate bond ratings: Aaa--judged
to be the best quality, carry the smallest degree of investment risk; Aa--judged
to be of high quality by all standards; A--possess many favorable investment
attributes and are to be considered as upper medium grade obligations.
 
DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS
 
    Moody's Commercial Paper ratings are opinions of the ability of issuers to
repay punctually promissory obligations not having an original maturity in
excess of nine months. Moody's employs the following three designations, all
judged to be investment grade, to indicate the relative repayment capacity of
rated issuers:
 
    Issuers rated Prime-1 (or related supporting institutions) have a superior
capacity for repayment of short-term promissory obligations. Prime-1 repayment
capacity normally will be evidenced by the following characteristics: leading
market positions in well established industries; high rates of return on funds
employed; conservative capitalization structures with moderate reliance on debt
and ample asset protection; broad margins in earning coverage of fixed financial
charges and high internal cash generation; and well established access to a
range of financial markets and assured sources of alternate liquidity.
 
    Issuers rated Prime-2 (or related supporting institutions) have a strong
capacity for repayment of short-term promissory obligations. This normally will
be evidenced by many of the characteristics cited above but to a lesser degree.
Earnings trends and coverage ratios, while sound, will be more subject to
variation. Capitalization characteristics, while still appropriate, may be more
affected by external conditions. Ample alternate liquidity is maintained.
 
                                       54
<PAGE>
    Issuers rated Prime-3 (or related supporting institutions) have an
acceptable capacity for repayment of short-term promissory obligations. The
effects of industry characteristics and market composition may be more
pronounced. Variability in earnings and profitability may result in changes in
the level of debt protection measurements and the requirement for relatively
high financial leverage. Adequate alternate liquidity is maintained.
 
    Issuers rated Not Prime do not fall within any of the Prime rating
categories.
 
   
DESCRIPTION OF STANDARD & POOR'S RATINGS GROUP ("STANDARD & POOR'S") MUNICIPAL
DEBT RATINGS
    
 
    A Standard & Poor's municipal debt rating is a current assessment of the
creditworthiness of an obligor with respect to a specific obligation. This
assessment may take into consideration obligors such as guarantors, insurers or
lessees.
 
    The debt rating is not a recommendation to purchase, sell or hold a
security, inasmuch as it does not comment as to market price or suitability for
a particular investor.
 
    The ratings are based on current information furnished by the issuer or
obtained by Standard & Poor's from sources Standard & Poor's considers reliable.
Standard & Poor's does not perform an audit in connection with any rating and
may, on occasion, rely on unaudited financial information. The ratings may be
changed, suspended or withdrawn as a result of changes in, or unavailability of,
such information, or based on other circumstances.
 
    The ratings are based, in varying degrees, on the following considerations.
 
<TABLE>
<C>    <S>
   I.  Likelihood of default--capacity and willingness of the obligor as to the timely payment
       of interest and repayment of principal in accordance with the terms of the obligation;
 
  II.  Nature of and provisions of the obligation;
 
 III.  Protection afforded by, and relative position of, the obligation in the event of
       bankruptcy, reorganization or other arrangement under the laws of bankruptcy and other
       laws affecting creditors' rights.
</TABLE>
 
    AAA Debt rated "AAA" has the highest rating assigned by Standard & Poor's.
Capacity to pay interest and repay principal is extremely strong.
 
    AA Debt rated "AA" has a very strong capacity to pay interest and repay
principal and differs from the highest-rated issues only in small degree.
 
    A Debt rated "A" has a strong capacity to pay interest and repay principal
although it is somewhat more susceptible to the adverse effects of changes in
circumstances and economic conditions than debt in higher-rated categories.
 
    BBB Debt rated "BBB" is regarded as having an adequate capacity to pay
interest and repay principal. Whereas it normally exhibits adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than for debt in higher-rated categories.
 
    BB, B, CCC, CC, C Debt rated "BB", "CCC", "CC" and "C" is regarded, on
balance, as predominately speculative with respect to capacity to pay interest
and repay principal in accordance
 
                                       55
<PAGE>
with the terms of the obligations. "BB" indicates the lowest degree of
speculation and "CC" the highest degree of speculation. While such debt will
likely have some quality and protective characteristics, these are outweighed by
large uncertainties or major exposures to adverse conditions.
 
    CI The rating "CI" is reserved for income bonds on which no interest is
being paid.
 
    D Debt rated "D" is in payment default. The "D" rating category is used when
interest payments or principal payments are not made on the date due even if the
applicable grace period has not expired, unless Standard & Poor's believes that
such payments will be made during such grace period. The "D" rating also will be
used upon the filing of a bankruptcy petition if debt service payments are
jeopardized.
 
    Plus (+) or Minus (-): The ratings from "AA" to "BBB" may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
 
    Provisional Ratings: The letter "p" indicates that the rating is
provisional. A provisional rating assumes the successful completion of the
project being financed by the bonds being rated and indicates that payment of
debt service requirements is largely or entirely dependent upon the successful
and timely completion of the project. This rating, however, while addressing
credit quality subsequent to completion for the project, makes no comment on the
likelihood of, or the risk of default upon failure of, such completion. The
investor should exercise his own judgment with respect to such likelihood and
risk.
 
    NR Indicates that no rating has been requested, that there is insufficient
information on which to base a rating or that Standard & Poor's does not rate a
particular type of obligation as a matter of policy.
 
DESCRIPTION OF STANDARD & POOR'S CORPORATE BOND RATINGS
 
    A Standard & Poor's corporate debt rating is a current assessment of the
creditworthiness of an obligor with respect to specific obligation. Debt rated
"AAA" has the highest rating assigned by Standard & Poor's. Capacity to pay
interest and repay principal is extremely strong. Debt rated "AA" has a very
strong capacity to pay interest and to repay principal and differs from the
highest rated issues only in small degree. Debt rated "A" has a strong capacity
to pay interest and repay principal although it is somewhat more susceptible to
the adverse effects of changes in circumstances and economic conditions than
debt of a higher rated category. Debt rated "BBB" is regarded as having an
adequate capacity to pay interest and repay principal. Whereas it normally
exhibits adequate protection parameters, adverse economic conditions or changing
circumstances are more likely to lead to a weakened capacity to pay interest and
repay principal for debt in this category than in higher rated categories.
 
    The ratings from "AA" to "BBB" may be modified by the addition of a plus or
minus sign to show relative standing within the major rating categories.
 
DESCRIPTION OF STANDARD & POOR'S COMMERCIAL PAPER RATINGS
 
    A Standard & Poor's Commercial Paper Rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more than
365 days. Ratings are graded into four
 
                                       56
<PAGE>
categories, ranging from "A" for the highest quality obligations to "D" for the
lowest. Ratings are applicable to both taxable and tax-exempt commercial paper.
The four categories are as follows:
 
        A  Issues assigned this highest rating are regarded as having the
    greatest capacity for timely payment. Issues in this category are further
    refined with the designation 1, 2 or 3 to indicate the relative degree of
    safety as follows:
 
        A-1 This designation indicates that the degree of safety regarding
    timely payment is very strong. Issues that possess overwhelming safety
    characteristics are given a "+" designation.
 
        A-2 Capacity for timely payment on issues with this designation is
    strong. However, the relative degree of safety is not as overwhelming as for
    issues designated "A-1".
 
        A-3 Issues carrying this designation have a satisfactory capacity for
    timely payment. They are, however, somewhat more vulnerable to the adverse
    effects of changes in circumstances than obligations carrying the higher
    designations.
 
        B Issues rated "B" are regarded as having only speculative capacity for
    timely payment.
 
        C This rating is assigned to short-term debt obligations with a doubtful
    capacity for payment.
 
   
        D Debt rated "D" is in payment default. The "D" rating category is used
    when interest payments or principal payments are not made on the date due,
    even if the applicable grace period has not expired, unless Standard &
    Poor's believes that such payments will be made during such grace period.
    
 
    A Commercial Paper Rating is not a recommendation to purchase or sell a
security. The ratings are based on current information furnished to Standard &
Poor's by the issuer or obtained by Standard & Poor's from other sources it
considers reliable. The ratings may be changed, suspended or withdrawn as a
result of changes in, or unavailability of, such information.
 
    A Standard & Poor's note rating reflects the liquidity concerns and market
access risks unique to notes. Notes due in 3 years or less likely will receive a
note rating. Notes maturing beyond 3 years most likely will receive a long-term
debt rating. The following criteria will be used in making that assessment:
 
        .  Amortization schedule (the larger the final maturity relative to
    other maturities, the more likely it will be treated as a note).
 
        .  Source of payment (the more dependent the issue is on the market for
    its refinancing, the more likely it will be treated as a note).
 
    Note rating symbols are as follows:
 
        SP-1 A very strong, or strong, capacity to pay principal and interest.
    Issues that possess overwhelming safety characteristics will be given a "+"
    designation.
 
        SP-2 A satisfactory capacity to pay principal and interest.
 
        SP-3 A speculative capacity to pay principal and interest.
 
    Standard & Poor's may continue to rate note issues with a maturity greater
than three years in accordance with the same rating scale currently employed for
municipal bond ratings.
 
                                       57
<PAGE>
    Unrated: Where no rating has been assigned or where a rating has been
suspended or withdrawn, it may be for reasons unrelated to the quality of the
issue.
 
    Should no rating be assigned, the reason may be one of the following:
 
       1.  An application for rating was not received or accepted.
 
       2.  The issue or issuer belongs to a group of securities that are not
           rated as a matter of policy.
 
       3.  There is a lack of essential data pertaining to the issue or issuer.
 
       4.  The issue was privately placed, in which case the rating is not
           published in Moody's publications.
 
    Suspension or withdrawal may occur if new and material circumstances arise,
the effects of which preclude satisfactory analysis; if there is no longer
available reasonable up-to-date information to permit a judgment to be formed;
if a bond is called for redemption; or for other reasons.
 
DESCRIPTION OF FITCH INVESTORS SERVICE, INC.'S ("FITCH") INVESTMENT GRADE BOND
RATINGS
 
    Fitch investment grade bond ratings provide a guide to investors in
determining the credit risk associated with a particular security. The ratings
represent Fitch's assessment of the issuer's ability to meet the obligations of
a specific debt issue or class of debt in a timely manner.
 
    The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the current and prospective
financial condition and operating performance of the issuer and of any
guarantor, as well as the economic and political environment that might affect
the issuer's future financial strength and credit quality.
 
    Fitch ratings do not reflect any credit enhancement that may be provided by
insurance policies or financial guaranties unless otherwise indicated.
 
    Bonds that have the same rating are of similar but not necessarily identical
credit quality since the rating categories do not fully reflect small
differences in the degrees of credit risk.
 
    Fitch ratings are not recommendations to buy, sell, or hold any security.
Ratings do not comment on the adequacy of market price, the suitability of any
security for a particular investor, or the tax-exempt nature or taxability of
payments made in respect of any security.
 
    Fitch ratings are based on information obtained from issuers, other
obligors, underwriters, their experts, and other sources Fitch believes to be
reliable. Fitch does not audit or verify the truth or accuracy of such
information. Ratings may be changed, suspended, or withdrawn as a result of
changes in, or the unavailability of, information or for other reasons.
 
    AAA  Bonds considered to be investment grade and of the highest credit
quality. The obligor has an exceptionally strong ability to pay interest and
repay principal, which is unlikely to be affected by reasonably foreseeable
events.
 
    AA  Bonds considered to be investment grade and of very high credit quality.
The obligor's ability to pay interest and repay principal is very strong,
although not quite as strong as bonds rated "AAA".
 
                                       58
<PAGE>
Because bonds rated in the "AAA" and "AA" categories are not significantly
vulnerable to foreseeable future developments, short-term debt of these insurers
is generally rated "F-1+".
 
    A  Bonds considered to be investment grade and of high credit quality. The
obligor's ability to pay interest and repay principal is considered to be
strong, but may be more vulnerable to adverse changes in economic conditions and
circumstances than bonds with higher ratings.
 
    BBB  Bonds considered to be investment grade and of satisfactory credit
quality. The obligor's ability to pay interest and repay principal is considered
to be adequate. Adverse changes in economic conditions and circumstances,
however, are more likely to have adverse impact on these bonds, and therefore,
impair timely payment. The likelihood that the ratings of these bonds will fall
below investment grade is higher than for bonds with higher ratings.
 
    Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus and
minus signs, however, are not used in the "AAA" category.
 
    Credit Trend Indicator: Credit trend indicators show whether credit
fundamentals are improving, stable, declining, or uncertain, as follows:
 


         Improving
         Stable
         Declining
         Uncertain

 
    Credit trend indicators are not predictions that any rating change will
occur, and have a longer-term time frame than issues placed on FitchAlert.
 
    NR indicates that Fitch does not rate the specific issue.
 
    Conditional: A conditional rating is premised on the successful completion
of a project or the occurrence of a specific event.
 
    Suspended: A rating is suspended when Fitch deems the amount of information
available from the issuer to be inadequate for rating purposes.
 
    Withdrawn: A rating will be withdrawn when an issue matures or is called or
refinanced and, at Fitch's discretion, when an issuer fails to furnish proper
and timely information.
 
   
    FitchAlert: Ratings are placed on FitchAlert to notify investors of an
occurrence that is likely to result in a rating change and the likely direction
of such change. These are designated as "Positive", indicating a potential
upgrade, "Negative", for potential downgrade, or "Evolving", where ratings may
be raised or lowered. FitchAlert is relatively short-term, and should be
resolved within 12 months.
    
 
   
DESCRIPTION OF FITCH SPECULATIVE GRADE BOND RATINGS
    
 
   
    Fitch speculative grade bond ratings provide a guide to investors in
determining the credit risk associated with a particular security. The ratings
("BB" to "C") represent Fitch's assessment of the likelihood of timely payment
of principal and interest in accordance with the terms of obligation for
    
 
                                       59
<PAGE>
   
bond issues not in default. For defaulted bonds, the rating ("DDD" to "D") is an
assessment of the ultimate recovery value through reorganization or liquidation.
    
 
   
    The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the current and prospective
financial condition and operating performance of the issuer and any guarantor,
as well as the economic and political environment that might affect the issuer's
future financial strength.
    
 
   
    Bonds that have the same rating are of similar but not necessarily identical
credit quality since rating categories cannot fully reflect the differences in
degrees of credit risk.
    
 
   
<TABLE>

<S>             <C>
BB              Bonds are considered speculative. The obligor's ability to pay interest
                and repay principal may be affected over time by adverse economic
                changes. However, business and financial alternatives can be identified
                which could assist the obligor in satisfying its debt service
                requirements.
 
B               Bonds are considered highly speculative. While bonds in this class are
                currently meeting debt service requirements, the probability of continued
                timely payment of principal and interest reflects the obligor's limited
                margin of safety and the need for reasonable business and economic
                activity throughout the life of the issue.
 
CCC             Bonds have certain identifiable characteristics which, if not remedied,
                may lead to default. The ability to meet obligations requires an
                advantageous business and economic environment.
 
CC              Bonds are minimally protected. Default in payment of interest and/or
                principal seems probable over time.
 
C               Bonds are in imminent default in payment of interest or principal.
 
DDD, DD and D   Bonds are in default on interest and/or principal payments. Such bonds
                are extremely speculative and should be valued on the basis of their
                ultimate recovery value in liquidation or reorganization of the obligor.
                "DDD" represents the highest potential for recovery on these bonds, and
                "D" represents the lowest potential for recovery.
</TABLE>
    
 
   
    Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus and
minus signs, however, are not used in the "DDD", "DD", or "D" categories.
    
 
   
DESCRIPTION OF FITCH INVESTMENT GRADE SHORT-TERM RATINGS
    
 
   
    Fitch's short-term ratings apply to debt obligations that are payable on
demand or have original maturities of generally up to three years, including
commercial paper, certificates of deposit, medium-term notes, and municipal and
investment notes.
    
 
   
    The short-term rating places greater emphasis than a long-term rating on the
existence of liquidity necessary to meet the issuer's obligations in a timely
manner.
    
 
                                       60
<PAGE>
   
    Fitch short-term ratings are as follows:
    
 
   
<TABLE>
<S>             <C>
F-1+            Exceptionally Strong Credit Quality. Issues assigned this rating are
                regarded as having the strongest degree of assurance for timely payment.
 
F-1             Very Strong Credit Quality. Issues assigned this rating reflect an
                assurance of timely payment only slightly less in degree than issues
                rated "F-1+".
 
F-2             Good Credit Quality. Issues assigned this rating have a satisfactory
                degree of assurance for timely payment, but the margin of safety is not
                as great as for issues assigned "F-1+" and "F-1" ratings.
 
F-3             Fair Credit Quality. Issues assigned this rating have characteristics
                suggesting that the degree of assurance for timely payment is adequate,
                however, near-term adverse changes could cause these securities to be
                rated below investment grade.
 
F-S             Weak Credit Quality. Issues assigned this rating have characteristics
                suggesting a minimal degree of assurance for timely payment and are
                vulnerable to near-term adverse changes in financial and economic
                conditions.
 
D               Default. Issues assigned this rating are in actual or imminent payment
                default.
 
LOC             The symbol "LOC" indicates that the rating is based on a letter of credit
                issued by a commercial bank.
 
INS             The symbol "INS" indicates that the rating is based on an insurance
                policy or financial guaranty issued by an insurance company.
</TABLE>
    
 
                                       61
<PAGE>
   
INDEPENDENT AUDITORS' REPORT
    
 
   
The Board of Trustees and Shareholders,
MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND OF
MERRILL LYNCH MUNICIPAL SERIES TRUST:
    
 
   
We have audited the accompanying statement of assets and liabilities, including
the schedule of investments, of Merrill Lynch Municipal Intermediate Term Fund
of Merrill Lynch Municipal Series Trust as of October 31, 1994, the related
statements of operations for the year then ended and changes in net assets for
each of the years in the two-year period then ended, and the financial
highlights for each of the years in the five-year period then ended. These
financial statements and the financial highlights are the responsibility of the
Fund's management. Our responsibility is to express an opinion on these
financial statements and the financial highlights based on our audits.
    
 
   
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and the financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned at October
31, 1994 by correspondence with the custodian and brokers. An audit also
includes assessing the accounting principles used and significant estimates made
by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.
    
 
   
In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of Merrill Lynch
Municipal Intermediate Term Fund of Merrill Lynch Municipal Series Trust as of
October 31, 1994, the results of its operations, the changes in its net assets,
and the financial highlights for the respective stated periods in conformity
with generally accepted accounting principles.
    
 
   
DELOITTE & TOUCHE LLP
Princeton, New Jersey
December 5, 1994
    
 
                                       62

<PAGE>
<TABLE>
                                                                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND, OCTOBER 31, 1994
SCHEDULE OF INVESTMENTS                                                                                           (in Thousands)
<CAPTION>
S&P       Moody's   Face                                                                                                 Value
Ratings   Rating    Amount     Issue                                                                                   (Note 1a)
<C>       <C>       <C>        <S>                                                                                     <C>
STATE

Alaska--2.1%
AAA       Aaa       $1,000     Alaska Student Loan Corporation, Student Assistance, Student Loan Revenue Bonds,
                               AMT, Series A, 5.90% due 7/01/2003 (c)                                                  $    974
                               North Slope Boro, Alaska, Revenue Bonds, UT, Series B (d):
AAA       Aaa        2,000       6.06%* due 1/01/2002                                                                     1,304
AAA       Aaa        2,000       6.16%* due 1/01/2003                                                                     1,218

Arizona--2.7%
AA-       Aa         3,000     Maricopa County, Arizona, United School District No. 48 Revenue Bonds (Scottsdale
                               Improvement), UT, 4.40% due 7/01/2013                                                      2,237
                               Tucson, Arizona, Street and Highway User Revenue Bonds, Series B (g):
A+        NR**       1,000       9.25% due 7/01/2000                                                                      1,181
A+        NR**       1,000       9.25% due 7/01/2002                                                                      1,216

California--9.5%
NR**      MIG1+      7,185     Fresno County, California, TRAN, 4.25% due 7/13/1995                                       7,171
AA        Aa         6,710     Los Angeles, California, Department of Water and Power Waterworks, Revenue Refunding
                               Bonds, 4.50% due 5/15/2011                                                                 5,114
                               San Francisco, California, City and County, GO, UT (d):
AAA       Aaa          740       (Correctional Facilities Improvement), Series C, 10% due 12/15/2000                        913
AAA       Aaa          680       (Fire Protection Improvement), Series B, 10% due 12/15/2000                                839
NR**      NR**       1,750     University of California, COP (UCLA Central Chiller Cogeneration),
                               10.75% due 11/01/1998 (g)                                                                  2,095

Colorado--5.2%
A1        Aa3        1,000     Colorado HFA, M/F Revenue Bonds (Central Park Coven & Greenwood), VRDN, 3.35% due
                               5/01/1997 (a)                                                                              1,000
AAA       Aaa        1,000     Colorado Springs, Colorado, Utility Revenue Improvement Bonds, Series A,
                               9.875% due 11/15/2000 (b)                                                                  1,233
                               Colorado Student Obligation Bond Authority, Student Loan Revenue Bonds, AMT, Series C:
NR**      A          1,000       6.80% due 9/01/2000                                                                      1,034
NR**      A          1,300       6.90% due 9/01/2001                                                                      1,332
A+        A          2,000     Denver, Colorado, City and County Revenue Bonds, COP (School District Number 001), UT,
                               Series B, 10% due 12/01/1999                                                               2,389
NR**      A          1,470     Larimer County, Colorado, GO, COP (Poudre School District Number R-1),
                               10% due 12/01/2001                                                                         1,845

Connecticut--4.3%
                               Connecticut State Clean Water Fund Revenue Bonds:
AA+       Aa         1,015       6.375% due 6/01/2004                                                                     1,055
AA+       Aa         1,805       6.375% due 12/01/2005                                                                    1,871
AA+       Aa         1,840       6.375% due 12/01/2006                                                                    1,897
AA-       A1         3,000     Connecticut State, Special Tax Obligation, Revenue Refunding Bonds (Transportation
                               Infrastructure), Series B, 4.30% due 10/01/2003                                            2,558

District of
Columbia--1.1%
A-        Baa        2,000     District of Columbia, Revenue Refunding Bonds, UT, Series A, 5.50% due 6/01/2001           1,919

Florida--1.7%
                               Hillsborough County, Florida, Capital Improvement Revenue Bonds (County Center
                               Project), Second Series:
A         A            940       6% due 7/01/2000                                                                           960
A         A            895       6.20% due 7/01/2004                                                                        909
A1+       VMIG1        200     Hillsborough County, Florida, IDA, PCR, Refunding (Tampa Electric Company Project),
                               VRDN, 3.55% due 5/15/2018 (a)                                                                200

                                                                   63
<PAGE>

A1        VMIG1        800     Pinellas County, Florida, Health Facilities Authority, Revenue Refunding Bonds,
                               DATES (Pooled Hospital Loan Project), 3.70% due 12/01/2015 (a)                               800

Georgia--5.7%
AA+       Aaa        2,275     Georgia GO, Revenue Refunding Bonds, UT, Series A, 5.80% due 3/01/2000                     2,331
AA+       Aaa        2,500     Georgia GO, UT, Series D, 6.70% due 8/01/2010                                              2,632
A+        A          1,250     Georgia Municipal Electric Authority, Georgia Special Obligation Bonds, Fifth
                               Crossover Series (Project One), 6.40% due 1/01/2009                                        1,226
AA        Aa1        1,000     Gwinnett County, Georgia, School District Refunding Bonds, Series B,
                               6.35% due 2/01/2005                                                                        1,037
AAA       Aaa        2,180     Henry County, Georgia, School District Revenue Bonds, UT, 7.50% due 8/01/2004 (d)          2,439

Illinois--7.3%
                               Cook County, Illinois, Revenue Bonds, COP, UT (Community College District No. 508) (e):
AAA       Aaa        2,000       8.10% due 1/01/1999                                                                      2,199
AAA       Aaa        1,000       8.50% due 1/01/2002                                                                      1,161

A+        A          2,500     Illinois Health Facility Authority, Revenue Refunding Bonds (Lutheran General
                               Health), Series C, 7% due 4/01/2008                                                        2,550
A+        A1         2,500     Illinois Student Assistance, Community Student Loan Revenue Bonds, AMT, Series M,
                               6.60% due 3/01/2007                                                                        2,469
AAA       Aaa        1,575     Kane County, Illinois, Community Unit School District No. 304-Geneva, UT,
                               6.05% due 6/01/2005 (e)                                                                    1,574
AAA       Aaa        2,325     University of Illinois, COP, Series A, 7.25% due 8/15/2000 (f)                             2,441

Indiana--0.6%
A+        NR**       1,000     Indianapolis, Indiana, Local Public Improvement Bank Refunding Bonds, Series D,
                               6.50% due 2/01/2006                                                                        1,010

Iowa--2.1%
A1+       NR**       3,600     Iowa Finance Authority, Solid Waste Disposal Revenue Bonds (Cedar River Paper Company
                               Project), VRDN, Series A, 3.80% due 7/01/2023 (a)                                          3,600

Kentucky--1.4%
AAA       Aaa        3,090     University of Kentucky, Revenue Refunding Bonds (Community College Education),
                               Second Series, 4.60% due 5/01/2011 (c)                                                     2,427

Maine--3.1%
NR**      A          3,080     Maine Educational Loan Marketing Corporation, Student Loan Revenue Refunding Bonds,
                               AMT, 6.90% due 11/01/2003                                                                  3,117
                               Maine State Turnpike Authority, Turnpike Revenue Bonds (d):
AAA       Aaa        1,000       7.125% due 7/01/2008                                                                     1,078
AAA       Aaa        1,000       7.50% due 7/01/2009                                                                      1,108

Massachusetts--1.1%
A+        A          1,500     Massachusetts GO, UT, Series B, 9.25% due 7/01/2000                                        1,774
</TABLE>

Portfolio
Abbreviations

To simplify the listings of Merrill Lynch Municipal
Intermediate Term Fund's portfolio holdings in the
Schedule of Investments, we have abbreviated the
names of many of the securities according to the list
below and at right.

AMT   Alternative Minimum Tax (subject to)
COP   Certificates of Participation
DATES Daily Adjustable Tax-Exempt Securities
GO    General Obligation Bonds
HFA   Housing Finance Authority
IDA   Industrial Development Authority
M/F   Multi-Family
PCR   Pollution Control Revenue Bonds
S/F   Single-Family
TRAN  Tax Revenue Anticipation Notes
UT    Unlimited Tax
VRDN  Variable Rate Demand Notes
                                                                   64
<PAGE>

<TABLE>
                                                                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND, OCTOBER 31, 1994
SCHEDULE OF INVESTMENTS (concluded)                                                                               (in Thousands)
<CAPTION>
S&P       Moody's   Face                                                                                                 Value
Ratings   Rating    Amount     Issue                                                                                   (Note 1a)
<C>       <C>       <C>        <S>                                                                                     <C>
STATE

Michigan--5.2%
BBB       Baa1      $2,500     Dickinson County, Michigan, Economic Development Corporation, Solid Waste Disposal
                               Revenue Refunding Bonds (Champion International), 6.55% due 3/01/2007                    $ 2,420
AA        Aa         1,730     Lansing, Michigan, Board of Water and Light, Water Supply, Electric Utility System
                               Revenue Bonds, Series A, 5% due 7/01/2012                                                  1,402
NR**      A          1,000     Michigan Higher Education, Student Loan Authority Revenue Bonds, AMT, Series XIV-A,
                               6.75% due 10/01/2006                                                                       1,033
                               Michigan State Hospital Finance Authority, Revenue Refunding Bonds, Series A:
A-        A          1,000       (Detroit Medical Center), 6.375% due 8/15/2009                                             964
NR**      A1         3,280       (McLaren Obligation Group), 5.75% due 10/15/2003                                         3,094

Minnesota--1.3%
AA+       Aa         2,250     Minnesota HFA, S/F Mortgage Revenue Bonds, Series E, 6.65% due 7/01/2013                   2,200

Mississippi--2.3%
                               Mississippi Higher Education Assistance Corporation, Student Loan Revenue Refunding
                               Bonds, AMT, Series C:
A         NR**       2,370       6.40% due 1/01/2003                                                                      2,404
A         NR**       1,440       6.50% due 7/01/2004                                                                      1,507

Nevada--2.8%
AAA       Aaa        2,905     Clark County, Nevada, Airport, GO, 10% due 6/01/2001 (e)                                   3,606
AAA       Aaa        1,000     Clark County, Nevada, School District Revenue Bonds, Series A, 9.75% due 6/01/2000 (d)     1,203

New Jersey--3.8%
AA+       Aa1        1,000     New Jersey GO, 7% due 4/01/1999                                                            1,067
AAA       Aaa        3,000     New Jersey Housing and Mortgage Finance Agency Revenue Bonds, AMT, Series F, 7.80%
                               due 10/01/2010 (d)                                                                         3,037
                               New Jersey Transportation Trust Fund Revenue Bonds, Series A:
A+        Aa         1,000       6% due 6/15/2000                                                                         1,024
A+        Aa         1,350       6% due 6/15/2001                                                                         1,380

New York--4.1%
                               New York City, New York, GO, UT:
A-        Baa1       2,000       Series A, 8% due 11/01/1998 (g)                                                          2,200
A-        Baa1       1,605       Series F, 8.10% due 11/15/1999                                                           1,752
A1+       NR**       3,000     New York State Energy Research and Development Authority, PCR (Niagara Power
                               Corporation Project), VRDN, AMT, Series B, 3.70% due 7/01/2027 (a)                         3,000

North Carolina--2.2%
AAA       Aaa        1,005     Mecklenburg County, North Carolina, Public Improvement Bonds, UT, Series A and B,
                               6.10% due 4/01/2001                                                                        1,048
A-        A          2,500     North Carolina Eastern Municipal Power Agency, Power System Revenue Refunding Bonds,
                               Series B, 7.25% due 1/01/2007                                                              2,580
NR**      P1           100     Wake County, North Carolina, Industrial Facilities and Pollution Control Finance
                               Authority Revenue Bonds (Carolina Power and Light Company Project), DATES,
                               3.65% due 3/01/2017 (a)                                                                      100

North Dakota--0.6%
NR**      Aa         1,000     North Dakota State, Student Loan Revenue Refunding Bonds, Series A, 5.90% due
                               7/01/1998                                                                                  1,011

Ohio--2.1%
AAA       Aaa        1,000     Lakota, Ohio, Local School District Revenue Bonds, UT, 7% due 12/01/2007 (c)               1,071
                               Ohio State Public Facilities Commission, Park and Recreation Capital Facilities
                               Revenue Bonds, Series II-A:
A+        A1         1,600       4.60% due 12/01/2006                                                                     1,314
A+        A1         1,500       4.60% due 12/01/2007                                                                     1,210
                                                                   65
<PAGE>
Rhode Island--0.6%
AAA       Aaa        1,000     Rhode Island State, Refunding Bonds, Series A, 6.20% due 6/15/2004 (e)                     1,025

South Carolina--2.3%
A-        A3         4,000     Georgetown County, South Carolina, PCR, Refunding (International Paper Company
                               Project), 6.25% due 6/15/2005                                                              3,936

Texas--14.7%
                               Austin, Texas, Public Improvement Bonds:
AA        Aa         1,605       4.75% due 9/01/2011                                                                      1,281
AA        Aa         1,955       4.75% due 9/01/2012                                                                      1,544
AA        Aa         2,055       4.75% due 9/01/2013                                                                      1,607
                               Austin, Texas, Utility Systems Revenue Bonds (b):
AAA       Aaa        2,355       10.75% due 5/15/2000                                                                     2,932
AAA       Aaa        3,205       Series A, 9.50% due 5/15/2015                                                            3,811
NR**      A            760     Brazos, Texas, Higher Education Authority Incorporated, Student Loan Revenue
                               Refunding Bonds, AMT, Series A, 6.70% due 9/01/2001                                          781
A1+       VMIG1        200     Harris County, Texas, Health Facilities Development Corporation, Special Facilities
                               Revenue Bonds (Texas Medical Center Project), VRDN, 3.70% due 2/15/2022 (a) (d)              200
AAA       Aaa        2,250     Harris County, Texas, Toll Road Tax and Sub-Lien Revenue Bonds, UT,
                               10.375% due 2/01/1998 (b)                                                                  2,588
AAA       Aaa        1,950     San Antonio, Texas, Electric and Gas Revenue Refunding Bonds, Series A,
                               5.91%* due 2/01/2002 (c)                                                                   1,278
AA        Aa         1,375     San Antonio, Texas, GO, General Improvement Revenue Bonds, 8.625% due 8/01/1999            1,561
AA        Aa         2,700     Texas State Public Financing Authority Revenue Bonds, Series C, 9% due 10/01/1999          3,123
AA+       Aa1        3,545     University of Texas, Revenue Refunding Bonds (Permanent University Fund),
                               9.50% due 7/01/2000                                                                        4,252

Virginia--3.1%
                               Virginia State Housing Development Authority, Commonwealth Mortgage Revenue Bonds:
AA+       Aa         2,585       Series H, 6.50% due 7/01/2007                                                            2,558
NR**      Aa         1,365       Series J, Subseries J-2, 6.45% due 1/01/2010                                             1,333
NR**      Aa         1,300       Series J, Subseries J-2, 6.50% due 1/01/2011                                             1,266

Washington--7.1%
AAA       Aaa        1,500     Snohomish County, Washington, Public Utilities Electric Revenue Bonds (District
                               No. 001), Series B, 9.75% due 1/01/1999 (e)                                                1,737
AAA       Aaa        5,000     Tacoma, Washington, Electric System Revenue Bonds, 5.90% due 1/01/2005 (c)                 4,899
AA        Aa         2,400     Washington GO, Revenue Bonds, Series A, 6.70% due 2/01/2006                                2,542
                               Washington Public Power Supply System (Nuclear Project No. 3), Revenue Refunding
                               Bonds, Series B:
AA        Aa         1,500       7.375% due 7/01/2004                                                                     1,614
AA        Aa         1,070       7% due 7/01/2009                                                                         1,114

Total Investments (Cost--$175,467)--100.1%                                                                              170,046
Liabilities in Excess of Other Assets--(0.1%)                                                                              (170)
                                                                                                                       --------
Net Assets--100.0%                                                                                                     $169,876
                                                                                                                       ========
<FN>
(a)The interest rate is subject to change periodically based upon prevailing market rates.
   The interest rates shown are the rates in effect at October 31, 1994.
(b)Prerefunded.
(c)AMBAC Insured.
(d)MBIA Insured.
(e)FGIC Insured.
(f)Capital Guaranty.
(g)Escrowed to maturity.
  *Represents the yield to maturity on this zero coupon issue.
 **Not Rated.
 ++Highest short-term rating by Moody's Investors Service, Inc.
   Ratings of issues shown have not been audited by Deloitte & Touche LLP.

See Notes to Financial Statements.
</TABLE>
                                                                   66
<PAGE>

<TABLE>
                                                                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND, OCTOBER 31, 1994
STATEMENT OF ASSETS AND LIABILITIES
<CAPTION>
                   As of October 31, 1994
<S>                <S>                                                                             <C>               <C>
Assets:            Investments, at value (identified cost--$175,466,813) (Note 1a)                                   $170,046,021
                   Cash                                                                                                    79,200
                   Receivables:
                     Interest                                                                      $  3,432,605
                     Securities sold                                                                  2,024,422
                     Beneficial interest sold                                                           482,445
                     Other                                                                               10,938         5,950,410
                                                                                                   ------------
                   Prepaid registration fees and other assets (Note 1e)                                                   120,667
                                                                                                                     ------------
                   Total assets                                                                                       176,196,298
                                                                                                                     ------------

Liabilities:       Payables:
                     Securities purchased                                                             4,908,338
                     Beneficial interest redeemed                                                     1,024,598
                     Dividends to shareholders (Note 1f)                                                164,810
                     Investment adviser (Note 2)                                                         75,370
                     Distributor (Note 2)                                                                34,308         6,207,424
                                                                                                   ------------
                   Accrued expenses and other liabilities                                                                 113,239
                                                                                                                     ------------
                   Total liabilities                                                                                    6,320,663
                                                                                                                     ------------

Net Assets:        Net assets                                                                                        $169,875,635
                                                                                                                     ============

Net Assets         Class A Shares of beneficial interest, $.10 par value, unlimited number
Consist of:        of shares authorized                                                                              $    287,477
                   Class B Shares of beneficial interest, $.10 par value, unlimited number
                   of shares authorized                                                                                 1,477,996
                   Class C Shares of beneficial interest, $.10 par value, unlimited number
                   of shares authorized                                                                                        11
                   Class D Shares of beneficial interest, $.10 par value, unlimited number
                   of shares authorized                                                                                       727
                   Paid-in capital in excess of par                                                                   183,143,194
                   Accumulated realized capital losses--net (Note 5)                                                   (9,612,978)
                   Unrealized depreciation on investments--net                                                         (5,420,792)
                                                                                                                     ------------
                   Net assets                                                                                        $169,875,635
                                                                                                                     ============

Net Asset Value:   Class A--Based on net assets of $27,652,527 and 2,874,765 shares of
                   beneficial interest outstanding                                                                   $       9.62
                                                                                                                     ============
                   Class B--Based on net assets of $142,152,159 and 14,779,964 shares of
                   beneficial interest outstanding                                                                   $       9.62
                                                                                                                     ============
                   Class C--Based on net assets of $1,058 and 110 shares of beneficial
                   interest outstanding 	                                                                     $       9.62
                                                                                                                     ============
                   Class D--Based on net assets of $69,891 and 7,266 shares of beneficial
                   interest outstanding 	                                                                     $       9.62
                                                                                                                     ============

</TABLE>
<TABLE>
STATEMENT OF OPERATIONS
<CAPTION>
                      For the Year Ended October 31, 1994
<S>                   <S>                                                                          <C>                <C>
Investment            Interest and amortization of premium and discount                                               $10,798,795
Income (Note 1d):
                                                                   67
<PAGE>

Expenses:             Investment advisory fees (Note 2)                                                                   999,575
                      Distribution fees--Class B (Note 2)                                                                 453,640
                      Printing and shareholder reports                                                                     84,287
                      Registration fees (Note 1e)                                                                          69,060
                      Transfer agent fees--Class B (Note 2)                                                                65,195
                      Accounting services (Note 2)                                                                         58,282
                      Professional fees                                                                                    47,393
                      Custodian fees                                                                                       22,187
                      Trustees' fees and expenses                                                                          16,132
                      Pricing fees                                                                                         11,350
                      Transfer agent fees--Class A (Note 2)                                                                11,218
                      Other                                                                                                 5,772
                                                                                                                     ------------
                      Total expenses                                                                                    1,844,091
                                                                                                                     ------------
                      Investment income--net                                                                            8,954,704
                                                                                                                     ------------

Realized & Unreal-    Realized gain on investments                                                                      1,875,751
ized Gain (Loss) on   Change in unrealized appreciation/depreciation on investments--net                              (15,766,315)
Investments--Net                                                                                                     ------------
(Notes 1d & 3):       Net Decrease in Net Assets Resulting from Operations                                           $ (4,935,860)
                                                                                                                     ============

</TABLE>

<TABLE>
STATEMENTS OF CHANGES IN NET ASSETS
<CAPTION>
                                                                                                   For the Year Ended October 31,
                      Increase (Decrease) in Net Assets:                                              1994                1993
<S>                   <S>                                                                          <C>               <C>
Operations:           Investment income--net                                                       $  8,954,704      $  8,269,632
                      Realized gain on investments--net                                               1,875,751         2,843,168
                      Change in unrealized appreciation/depreciation on investments--net            (15,766,315)        8,068,558
                                                                                                   ------------      ------------
                      Net increase (decrease) in net assets resulting from operations                (4,935,860)       19,181,358
                                                                                                   ------------      ------------

Dividends to          Investment income--net:
Shareholders            Class A                                                                      (1,583,774)       (1,005,826)
(Note 1f):              Class B                                                                      (7,370,849)       (7,263,806)
                        Class C                                                                              (1)               --
                        Class D                                                                             (80)               --
                                                                                                   ------------      ------------
                      Net decrease in net assets resulting from dividends to shareholders            (8,954,704)       (8,269,632)
                                                                                                   ------------      ------------

Beneficial Interest   Net increase in net assets derived from beneficial interest transactions        1,531,744        32,452,759
Transactions                                                                                       ------------      ------------
(Note 4):

Net Assets:           Total increase (decrease) in net assets                                       (12,358,820)       43,364,485
                      Beginning of year                                                             182,234,455       138,869,970
                                                                                                   ------------      ------------
                      End of year                                                                  $169,875,635      $182,234,455
                                                                                                   ============      ============

                     See Notes to Financial Statements.
</TABLE>
                                                                   68
<PAGE>

<TABLE>
                                                                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND, OCTOBER 31, 1994
FINANCIAL HIGHLIGHTS
<CAPTION>
                   The following per share data and ratios have been derived
                   from information provided in the financial statements.                          Class A
                                                                                       For the Year Ended October 31,
                   Increase (Decrease) in Net Asset Value:                    1994       1993       1992       1991        1990
<S>                <S>                                                      <C>        <C>        <C>        <C>         <C>
Per Share          Net asset value, beginning of year                       $  10.39   $   9.70   $   9.61   $   9.24    $   9.29
Operating                                                                   --------   --------   --------   --------    --------
Performance:       Investment income--net                                        .52        .54        .59        .60         .59
                   Realized and unrealized gain (loss) on investments--net      (.77)       .69        .09        .37        (.05)
                                                                            --------   --------   --------   --------    --------
                   Total from investment operations                             (.25)      1.23        .68        .97         .54
                                                                            --------   --------   --------   --------    --------
                   Less dividends:
                     Investment income--net                                     (.52)      (.54)      (.59)      (.60)       (.59)
                                                                            --------   --------   --------   --------    --------
                   Net asset value, end of year                             $   9.62   $  10.39   $   9.70   $   9.61    $   9.24
                                                                            ========   ========   ========   ========    ========

Total Investment   Based on net asset value per share                         (2.49%)    13.01%      7.16%     10.90%       5.99%
Return:*                                                                    ========   ========   ========   ========    ========

Ratios to Average  Expenses                                                     .76%       .75%       .86%       .85%        .92%
Net Assets:                                                                 ========   ========   ========   ========    ========
                   Investment income--net                                      5.19%      5.35%      5.97%      6.34%       6.39%
                                                                            ========   ========   ========   ========    ========

Supplemental       Net assets, end of year (in thousands)                   $ 27,653   $ 24,173   $ 14,068   $  6,546    $  2,233
Data:                                                                       ========   ========   ========   ========    ========
                   Portfolio turnover                                         52.56%     83.66%     74.20%    129.85%     236.07%
                                                                            ========   ========   ========   ========    ========

<CAPTION>
                   The following per share data and ratios have been derived
                   from information provided in the financial statements.                          Class B
                                                                                       For the Year Ended October 31,
                   Increase (Decrease) in Net Asset Value:                    1994       1993       1992       1991        1990
<S>                <S>                                                      <C>        <C>        <C>        <C>         <C>
Per Share          Net asset value, beginning of year                       $  10.39   $   9.69   $   9.61   $   9.24    $   9.29
Operating                                                                   --------   --------   --------   --------    --------
Performance:       Investment income--net                                        .49        .51        .56        .57         .57
                   Realized and unrealized gain (loss) on investments--net      (.77)       .70        .08        .37        (.05)
                                                                            --------   --------   --------   --------    --------
                   Total from investment operations                             (.28)      1.21        .64        .94         .52
                                                                            --------   --------   --------   --------    --------
                   Less dividends:
                     Investment income--net                                     (.49)      (.51)      (.56)      (.57)       (.57)
                                                                            --------   --------   --------   --------    --------
                   Net asset value, end of year                             $   9.62   $  10.39   $   9.69   $   9.61    $   9.24
                                                                            ========   ========   ========   ========    ========

Total Investment   Based on net asset value per share                         (2.79%)    12.78%      6.72%     10.56%       5.68%
Return:*                                                                    ========   ========   ========   ========    ========

Ratios to Average  Expenses, excluding distribution fees                        .77%       .76%       .86%       .88%        .92%
Net Assets:                                                                 ========   ========   ========   ========    ========
                   Expenses                                                    1.07%      1.06%      1.16%      1.18%       1.22%
                                                                            ========   ========   ========   ========    ========
                   Investment income--net                                      4.87%      5.07%      5.68%      6.05%       6.09%
                                                                            ========   ========   ========   ========    ========

Supplemental       Net assets, end of year (in thousands)                   $142,152   $158,061   $124,802   $ 97,998    $109,388
Data:                                                                       ========   ========   ========   ========    ========
                   Portfolio turnover                                         52.56%     83.66%     74.20%    129.85%     236.07%
                                                                            ========   ========   ========   ========    ========
                                                                   69
<PAGE>
<CAPTION>
                   The following per share data and ratios have been derived                                   For the Period
                   from information provided in the financial statements.                                   October 21, 1994++ to
                                                                                                              October 31, 1994
                   Increase (Decrease) in Net Asset Value:                                                   Class C      Class D
<S>                <S>                                                                                       <C>         <C>
Per Share          Net asset value, beginning of period                                                      $   9.70    $   9.70
Operating                                                                                                    --------    --------
Performance:       Investment income--net                                                                         .01         .01
                   Realized and unrealized loss on investments--net                                              (.08)       (.08)
                                                                                                             --------    --------
                   Total from investment operations                                                              (.07)       (.07)
                                                                                                             --------    --------
                   Less dividends:
                     Investment income--net                                                                      (.01)       (.01)
                                                                                                             --------    --------
                   Net asset value, end of period                                                            $   9.62    $   9.62
                                                                                                             ========    ========
Total Investment   Based on net asset value per share                                                           (.71%)+++ (.71%)+++
Return:*                                                                                                     ========    ========

Ratios to Average  Expenses, excluding distribution fees                                                         .88%**      .87%**
Net Assets:                                                                                                  ========    ========
                   Expenses                                                                                     1.18%**      .97%**
                                                                                                             ========    ========
                   Investment income--net                                                                       4.92%**     5.20%**
                                                                                                             ========    ========

Supplemental       Net assets, end of period (in thousands)                                                  $      1    $     70
Data:                                                                                                        ========    ========
                   Portfolio turnover                                                                          52.56%      52.56%
                                                                                                             ========    ========

<FN>
  *Total investment returns exclude the effects of sales loads.
 **Annualized.
 ++Commencement of Operations.
+++Aggregate total investment return.

   See Notes to Financial Statements.
</TABLE>

                                                                   70
<PAGE>
                MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND, OCTOBER 31, 1994

NOTES TO FINANCIAL STATEMENTS

1. Significant Accounting Policies:
Merrill Lynch Municipal Intermediate Term Fund (the "Fund"),
formerly Merrill Lynch Municipal Income Fund, is presently the
only series of Merrill Lynch Municipal Series Trust (the
"Trust"). The Fund is registered under the Investment Company
Act of 1940 as a diversified, open-end management investment
company. The Fund offers four classes of shares under the Merrill
Lynch Select Pricing SM System. Shares of Class A and Class D are
sold with a front-end sales charge. Shares of Class B and Class C
may be subject to a contingent deferred sales charge. All classes
of shares have identical voting, dividend, liquidation and other
rights and the same terms and conditions, except that Class B,
Class C and Class D Shares bear certain expenses related to the
account maintenance of such shares, and Class B and Class C also
bear certain expenses related to the distribution of such shares.
Each class has exclusive voting rights with respect to matters
relating to its account maintenance and distribution expenditures.
The following is a summary of significant accounting policies
followed by the Fund.

(a) Valuation of investments--Municipal bonds and other portfolio
securities in which the Fund invests are traded primarily in the
over-the-counter municipal bond and money markets and are valued
at the last available bid price in the over-the-counter market or
on the basis of yield equivalents as obtained by the Fund's
pricing service from one or more dealers that make markets in the
securities. Financial futures contracts, which are traded on
exchanges, are valued at their last sale price as of the close of
such exchanges. Options on financial futures contracts on US
Government securities, which are traded on exchanges, are valued
at their last bid price in the case of options purchased and
their last asked price in the case of options written. Short-term
investments with a remaining maturity of sixty days or less are
valued at amortized cost, which approximates market. Securities
and assets for which market quotations are not readily available
are valued at fair value as determined in good faith by
or under the direction of the Board of Trustees of the Fund.

(b) Financial futures contracts--The Fund may purchase or sell
interest rate futures contracts. Upon entering into a contract,
the Fund deposits and maintains as collateral such initial margin
as required by the exchange on which the transaction is effected.
Pursuant to the contract, the Fund agrees to receive from or pay
to the broker an amount of cash equal to the daily fluctuation in
value of the contract. Such receipts or payments are known as
variation margin and are recorded by the Fund as unrealized gains
or losses. When the contract is closed, the Fund records a
realized gain or loss equal to the difference between the value
of the contract at the time it was opened and the value at the
time it was closed.

(c) Income taxes--It is the Fund's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated
investment companies and to distribute substantially all of its
taxable income to its shareholders. Therefore, no Federal income
tax provision is required.

(d) Security transactions and investment income--Security
transactions are recorded on the dates the transactions are
entered into (the trade dates). Interest income is recognized on
the accrual basis. Discounts and market premiums are amortized
into interest income. Realized gains and losses on security
transactions are determined on the identified cost basis.

(e) Prepaid registration fees--Prepaid registration fees are
charged to expense as the related shares are issued.

(f) Dividends and distributions--Dividends from net investment
income are declared daily and paid monthly. Distributions of
capital gains are recorded on the ex-dividend dates.

2. Investment Advisory Agreement and Transactions
with Affiliates:
The Fund has entered into an Investment Advisory Agreement with
Merrill Lynch Asset Management, L.P. ("MLAM"). Effective
January 1, 1994, the investment advisory business of MLAM was
reorganized from a corporation to a limited partnership. Both
prior to and after the reorganization, ultimate control of MLAM
was vested with Merrill Lynch & Co., Inc. ("ML & Co."). The
general partner of MLAM is Princeton Services, Inc. ("PSI"), an
indirect wholly-owned subsidiary of ML & Co. The limited partners
are ML & Co. and Merrill Lynch Investment Management, Inc.
("MLIM"), which is also an indirect wholly-owned subsidiary of
ML & Co. The Fund has also entered into a Distribution Agreement
and a Distribution Plan with Merrill Lynch Funds Distributor,
Inc. ("MLFD" or "Distributor"), a wholly-owned subsidiary of MLIM.

                            71
<PAGE>
MLAM is responsible for the management of the Fund's portfolio
and provides the necessary personnel, facilities, equipment and
certain other services necessary to the operations of the Fund.
For such services, the Fund pays a monthly fee of 0.55% on the
average daily value of the net assets.

The Investment Advisory Agreement obligates MLAM to reimburse the
Fund to the extent that expenses (excluding interest, taxes,
distribution fees, brokerage fees and commissions, and
extraordinary items) exceed 2.5% of the Fund's first $30 million
of average daily net assets, 2.0% of the Fund's next $70 million
of average daily net assets, and 1.5% of the average daily net
assets in excess thereof. MLAM's obligation to reimburse the Fund
is limited to the amount of the management fee. No fee payment
will be made to MLAM during any fiscal year which will cause such
expenses to exceed the expense limitation applicable at the time
of such payment.

Pursuant to a distribution plan (the "Distribution Plan")
adopted by the Fund in accordance with Rule 12b-1 under the
Investment Company Act of 1940, the Fund pays the Distributor
ongoing account maintenance and distribution fees. The fees are
accrued daily and paid monthly at annual rates based upon the
average daily net assets of the shares as follows:

                            Account         Distribution
                        Maintenance Fee         Fee

Class B                      0.20%             0.10%
Class C                      0.20%             0.10%
Class D                      0.10%               --

Pursuant to a sub-agreement with the Distributor, Merrill Lynch,
Pierce, Fenner & Smith Inc. ("MLPF&S"), a subsidiary of ML & Co.,
also provides account maintenance and distribution services to
the Fund. The ongoing account maintenance fee compensates the
Distributor and MLPF&S for providing account maintenance services
to Class B, Class C and Class D shareholders. The ongoing
distribution fee compensates the Distributor and MLPF&S for
providing shareholder and distribution-related services to Class
B and Class C shareholders.

For the year ended October 31, 1994, MLFD earned underwriting
discounts and MLPF&S earned dealer concessions on sales of the
Fund's Class A and Class D Shares as follows:

                         MLFD      MLPF&S

Class A                 $7,395    $124,408
Class D                   --         --

MLPF&S received contingent deferred sales charges of $162,923
relating to transactions in Class B Shares for the year ended
October 31, 1994.

Financial Data Services, Inc. ("FDS"), an indirect wholly-owned
subsidiary of ML & Co., is the Fund's transfer agent.

Accounting services are provided to the Fund by MLAM at cost.

Certain officers and/or trustees of the Fund are officers and/or
directors of MLAM, MLIM, PSI, MLFD, FDS, MLPF&S and/or ML & Co.

3. Investments:
Purchases and sales of investments, excluding short-term securi-
ties, for the year ended October 31, 1994 were $88,091,724 and
$95,116,223, respectively.

Net realized and unrealized gains (losses) as of October 31, 1994
were as follows:
                                    Realized
                                     Gains        Unrealized
                                    (Losses)        Losses

Long-term investments              $ (494,354)    $(5,382,042)
Short-term investments                 (2,189)        (38,750)
Financial futures contracts         2,372,294              --
                                   ----------     -----------
Total                              $1,875,751     $(5,420,792)
                                   ==========     ===========

As of October 31, 1994, net unrealized depreciation for Federal
income tax purposes aggregated $5,420,792, of which $1,077,600
related to appreciated securities and $6,498,392 related to
depreciated securities. The aggregate cost of investments at
October 31, 1994 for Federal income tax purposes was $175,466,813.

                             72
<PAGE>
4. Beneficial Interest Transactions:
Net increase in net assets derived from beneficial interest
transactions was $1,531,744 and $32,452,759 for the years ended
October 31, 1994 and October 31, 1993, respectively.

Transactions in shares of beneficial interest for each class were
as follows:

Class A Shares for the                                Dollar
Year Ended October 31, 1994            Shares         Amount

Shares sold                          1,950,875     $19,905,075
Shares issued to shareholders in
reinvestment of dividends               84,928         849,553
                                   -----------     -----------
Total issued                         2,035,803      20,754,628
Shares redeemed                     (1,486,841)    (14,764,667)
                                   -----------     -----------
Net increase                           548,962     $ 5,989,961
                                   ===========     ===========


Class A Shares for the                                Dollar
Year Ended October 31, 1993            Shares         Amount

Shares sold                          1,779,848     $18,096,496
Shares issued to shareholders in
reinvestment of dividends               50,519         512,910
                                   -----------     -----------
Total issued                         1,830,367      18,609,406
Shares redeemed                       (955,351)     (9,742,886)
                                   -----------     -----------
Net increase                           875,016     $ 8,866,520
                                   ===========     ===========


Class B Shares for the                                Dollar
Year Ended October 31, 1994            Shares         Amount

Shares sold                          4,312,670     $43,164,248
Shares issued to shareholders in
reinvestment of dividends              355,440       3,565,166
                                   -----------     -----------
Total issued                         4,668,110      46,729,414
Shares redeemed                     (5,098,388)    (51,259,175)
                                   -----------     -----------
Net decrease                          (430,278)    $(4,529,761)
                                   ===========     ===========

Class B Shares for the                                Dollar
Year Ended October 31, 1993            Shares         Amount

Shares sold                          4,450,599     $44,989,012
Shares issued to shareholders in
reinvestment of dividends              354,024       3,587,137
                                   -----------     -----------
Total issued                         4,804,623      48,576,149
Shares redeemed                     (2,468,378)    (24,989,910)
                                   -----------     -----------
Net increase                         2,336,245     $23,586,239
                                   ===========     ===========


Class C Shares for the Period
October 21, 1994++ to                                 Dollar
October 31, 1994                       Shares         Amount

Shares sold                                110     $     1,067
                                   -----------     -----------
Total issued                               110     $     1,067
                                   ===========     ===========

[FN]
++Commencement of Operations.


Class D Shares for the Period
October 21, 1994++ to                                 Dollar
October 31, 1994                       Shares         Amount

Shares sold                              7,265     $    70,467
Shares issued to shareholders
in reinvestment of dividends                 1              10
                                   -----------     -----------
Total issued                             7,266     $    70,477
                                   ===========     ===========

[FN]
++Commencement of Operations.

5. Capital Loss Carryforward:
At October 31, 1994, the Fund had a net capital loss carryforward
of approximately $9,270,000, of which $1,038,000 expires in 1995,
$6,982,000 expires in 1996, $455,000 expires in 1997, and
$795,000 expires in 1998. This amount will be available to offset
like amounts of any future taxable gains.

                               73

<PAGE>
 
                -------------------
 
                TABLE OF CONTENTS
 
   
                                           PAGE
                                           ----
Investment Objective and Policies.......     2
 Description of Municipal Bonds.........     2
 Description of Temporary Investments...     6
 Repurchase Agreements..................     7
 Financial Futures and Options
   Transactions.........................     7
Investment Restrictions.................    12
Management of the Trust.................    15
 Trustees and Officers..................    15
 Compensation of Trustees...............    17
 Management and Advisory Arrangements...    18
Purchase of Shares......................    19
 Initial Sales Charge
   Alternatives--Class A and Class D
   Shares...............................    20
 Reduced Initial Sales Charges..........    21
 Distribution Plans.....................    23
 Limitations on the Payment of Deferred
   Sales Charges........................    24
Redemption of Shares....................    26
 Deferred Sales Charges--Class B
   Shares...............................    26
Portfolio Transactions..................    26
Determination of Net Asset Value........    28
Shareholder Services....................    29
 Investment Account.....................    29
 Automatic Investment Plans.............    29
 Automatic Reinvestment of Dividends and
   Capital Gain Distributions...........    29
 Systematic Withdrawal Plans--Class A
   and Class D Shares...................    30
 Exchange Privilege.....................    31
Distributions and Taxes.................    45
 Environmental Tax......................    47
 Tax Treatment of Futures and Options
   Transactions.........................    48
Performance Data........................    48
General Information.....................    51
 Description of Series and Shares.......    51
 Computation of Offering Price Per
   Share................................    52
 Independent Auditors...................    52
 Custodian..............................    52
 Transfer Agent.........................    53
 Legal Counsel..........................    53
 Reports to Shareholders................    53
 Additional Information.................    53
Appendix
 Ratings of Municipal Bonds.............    54
Independent Auditors' Report............    63
Financial Statements....................    64
    
                              Code #10706-0295
 
   

                                                   [LOGO]
                                                   MERRILL LYNCH
                                                   MUNICIPAL INTERMEDIATE
                                                   TERM FUND

                                                   [Art Work]

                                                   STATEMENT OF
                                                   ADDITIONAL
                                                   INFORMATION

                                                   February 27, 1995
 
                                                   Distributor:
                                                   Merrill Lynch
                                                   Funds Distributor, Inc.
    
<PAGE>
                           PART C. OTHER INFORMATION
 
ITEM 24. FINANCIAL STATEMENTS AND EXHIBITS.
 
    (A) FINANCIAL STATEMENTS:
 
    Contained in Part A:
 
   
      Financial Highlights for each of the periods in the eight-year period
      ended October 31, 1994.
    
 
    Contained in Part B:
 
      Financial Statements:
 
   
      Schedule of Investments as of October 31, 1994.
    
 
   
      Statement of Assets and Liabilities as of October 31, 1994.
    
 
   
      Statement of Operations for the year ended October 31, 1994.
    
 
   
      Statement of Changes in Net Assets for the years ended October 31, 1994
      and 1993.
    
 
   
      Financial Highlights for each of the years in the five-year period ended
      October 31, 1994.
    
 
    (B) EXHIBITS:
 
   
<TABLE><CAPTION>

EXHIBIT
NUMBER                                       DESCRIPTION
- ------   ------------------------------------------------------------------------------------
<S>      <C>
  1(a)   -- Declaration of Trust of the Registrant, dated August 14, 1986.
   (b)   -- Instrument establishing Merrill Lynch Municipal Income Fund (now Merrill Lynch
           Municipal Intermediate Term Fund) (the "Fund") as a series of the Registrant.
   (c)   -- Amendment of Declaration of Trust of the Registrant, dated October 3, 1988.
   (d)   -- Instrument establishing Class A shares and Class B shares of the Registrant.
   (e)   -- Certificate of Amendment to Series Designation, changing the name of the Fund to
           Merrill Lynch Municipal Intermediate Term Fund, dated November 15, 1993. (f)
   (f)   -- Amendment to Declaration of Trust and Establishment and Designation of Classes,
           dated October 17, 1994.
  2(a)   -- By-Laws of the Registrant. (a)
     3   --None.
     4   -- Portion of the Declaration of Trust, Establishment and Designation and By-Laws of
           the Registrant defining the rights of holders of shares of the Fund as a series of
           the Registrant.(e)
  5(a)   -- Form of Management Agreement between the Registrant and Merrill Lynch Investment
           Management, Inc. (now known as Merrill Lynch Asset
           Management, L.P.). (b)
   (b)   -- Supplement to Management Agreement between the Registrant and Merrill Lynch Asset
           Management, L.P.(g)
  6(a)   -- Class B Distribution Agreement between the Registrant and Merrill Lynch Funds
           Distributor, Inc. (b)
   (b)   -- Form of Class A Distribution Agreement between the Registrant and Merrill Lynch
           Funds Distributor, Inc. (including Form of Selected Dealers Agreement). (g)
   (c)   -- Letter Agreement between the Fund and Merrill Lynch Funds Distributor, Inc.,
           dated September 15, 1993, in connection with the Merrill Lynch Mutual Fund Adviser
           program. (f)
   (d)   -- Form of Class C Distribution Agreement between the Registrant and Merrill Lynch
           Funds Distributor, Inc. (including Form of Selected Dealers Agreement). (g)
   (e)   -- Form of Class D Distribution Agreement between the Registrant and Merrill Lynch
           Funds Distributor, Inc. (including Form of Selected Dealers Agreement). (g)
  7      -- None.
  8      -- Form of Custody Agreement between the Registrant and State Street Bank and Trust
           Company. (g)
  9      -- Form of Transfer Agency, Dividend Disbursing Agency and Shareholder Servicing
           Agency Agreement between Registrant and Merrill Lynch Financial Data Service, Inc.
           (now known as Financial Data Services, Inc.). (c)
</TABLE>
    
 
                                      C-1
<PAGE>
   
<TABLE><CAPTION>

EXHIBIT
NUMBER                                       DESCRIPTION
- ------   ------------------------------------------------------------------------------------
<S>      <C>
    10   -- Opinion of Brown & Wood, counsel for the Registrant.
    11   -- Consent of Deloitte & Touche LLP, independent auditors for the Registrant.
    12   --None.
    13   -- Certificate of Merrill Lynch Investment Management, Inc. (now known as Merrill
           Lynch Asset Management, L.P.). (b)
    14   --None.
 15(a)   -- Amended and Restated Class B Distribution Plan of the Registrant. (f)
   (b)   -- Form of Class C Distribution Plan and Class C Distribution Plan Sub-Agreement of
           the Registrant. (g)
   (c)   -- Form of Class D Distribution Plan and Class D Distribution Plan Sub-Agreement of
           the Registrant. (g)
 16(a)   -- Schedule of computation of each performance quotation provided in the
           Registration Statement in response to Item 22 (relating to Class A shares). (d)
   (b)   -- Schedule of computation of each performance quotation provided in the
           Registration Statement in response to Item 22 (relating to Class B shares). (c)
   (c)   -- Schedule of computation of each performance quotation provided in the
           Registration Statement in response to Item 22 (relating to Class C shares).
   (d)   -- Schedule of computation of each performance quotation provided in the
           Registration Statement in response to Item 22 (relating to Class D shares).
 17(a)   -- Financial Data Schedule for Class A Shares.
   (b)   -- Financial Data Schedule for Class B Shares.
   (c)   -- Financial Data Schedule for Class C Shares.
   (d)   -- Financial Data Schedule for Class D Shares.
</TABLE>
    
 
- ------------
 
   
<TABLE>
<C>   <S>
 (a)  Filed on August 15, 1986 as an exhibit to the Registrant's Registration Statement under
      the Securities Act of 1933 on Form N-1A.
 (b)  Filed on October 6, 1986 as an exhibit to Pre-Effective Amendment No. 1 to the
      Registrant's Registration Statement under the Securities Act of 1933 on Form N-1A.
 (c)  Filed on October 11, 1988 as an exhibit to Post-Effective Amendment No. 3 to the
      Registrant's Registration Statement under the Securities Act of 1933 on Form N-1A.
 (d)  Filed on February 28, 1990 as an exhibit to Post-Effective Amendment No. 6 to the
      Registrant's Registration Statement under the Securities Act of 1933 on Form N-1A.
 (e)  Reference is made to Article II, Section 2.3 and Articles V, VI, VIII, IX, X and XI of
      the Registrant's Declaration of Trust, previously filed as Exhibit 1(a) to the
      Registration Statement referred to in paragraph (a) above as amended by the Amendments
      to Declaration of Trust, dated October 3, 1988 and October 17, 1994, filed as Exhibits
      (1)(c) and (f) to the Registration Statement; to the Certificates of Establishment and
      Designation establishing the Fund as a series of the Registrant and establishing Class
      A and Class B shares of beneficial interest of the Fund, filed as Exhibits 1(b) and
      1(d), respectively, to the Registration Statement; to the Certificate of Amendment to
      Series Designation changing the name of the Fund to Merrill Lynch Municipal
      Intermediate Term Fund, filed as Exhibit 1(e) to the Registration Statement; to the
      section of the Amendment to the Declaration of Trust, dated October 17, 1994, filed as
      Exhibit 1(f) to the Registration Statement establishing Class C and Class D shares of
      beneficial interest of the Fund; and to Articles I, V and VI of the Registrant's
      By-Laws, previously filed as Exhibit 2 to the Registration Statement.
 (f)  Filed on February 24, 1994 as an exhibit to Post-Effective Amendment No. 9 to the
      Registrant's Registration Statement under the Securities Act of 1933 on Form N-1A.
 (g)  Filed on October 13, 1994 as an exhibit to Post-Effective Amendment No. 11 to the
      Registrant's Registration Statement under the Securities Act of 1933 on Form N-1A.
</TABLE>
    
 
                                      C-2
<PAGE>
ITEM 25. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH THE REGISTRANT.
 
    None.
 
ITEM 26. NUMBER OF HOLDERS OF SECURITIES.
 
   
<TABLE><CAPTION>
                                                                    NUMBER OF RECORD
                                                                       HOLDERS AT
TITLE OF CLASS                                                      JANUARY 31, 1995
- -------------------------------------------------------------  ---------------------------
<S>                                                            <C>
Class A shares of beneficial interest, par value $0.10 per
share........................................................               16
Class B shares of beneficial interest, par value $0.10 per
share........................................................              264
Class C shares of beneficial interest, par value $0.10 per
share........................................................                2
Class D shares of beneficial interest, par value $0.10 per
share........................................................                3
</TABLE>
    
 
ITEM 27. INDEMNIFICATION.
 
    Section 5.3 of the Registrant's Declaration of Trust provides as follows:
 
    "The Trust shall indemnify each of its Trustees, officers, employees and
agents (including persons who serve at its request as directors, officers or
trustees of another organization in which it has any interest as a shareholder,
creditor or otherwise) against all liabilities and expenses (including amounts
paid in satisfaction of judgments, in compromise, as fines and penalties, and as
counsel fees) reasonably incurred by him in connection with the defense or
disposition of any action, suit or other proceeding, whether civil or criminal,
in which he may be involved or with which he may be threatened, while in office
or thereafter, by reason of his being or having been such a trustee, officer,
employee or agent, except with respect to any matter as to which he shall have
been adjudicated to have acted in bad faith, willful misfeasance, gross
negligence or reckless disregard of his duties; provided, however, that as to
any matter disposed of by a compromise payment by such person, pursuant to a
consent decree or otherwise, no indemnification either for said payment or for
any other expenses shall be provided unless the Trust shall have received a
written opinion from independent legal counsel approved by the Trustees to the
effect that if either the matter of willful misfeasance, gross negligence or
reckless disregard of duty, or the matter of good faith and reasonable belief as
to the best interests of the Trust, had been adjudicated, it would have been
adjudicated in favor of such person. The rights accruing to any Person under
these provisions shall not exclude any other right to which he may be lawfully
entitled; provided that no Person may satisfy any right of indemnity or
reimbursement granted herein or in Section 5.1 or to which he may be otherwise
entitled except out of the property of the Trust, and no Shareholder shall be
personally liable to any Person with respect to any claim for indemnity or
reimbursement or otherwise. The Trustees may make advance payments in connection
with indemnification under this Section 5.3, provided that the indemnified
person shall have given a written undertaking to reimburse the Trust in the
event it is subsequently determined that he is not entitled to such
indemnification."
 
    Insofar as the conditional advancing of indemnification monies for actions
based upon the Investment Company Act of 1940 may be concerned, such payments
will be made only on the following conditions: (i) the advances must be limited
to amounts used, or to be used, for the preparation or presentation of a defense
to the action, including costs connected with the preparation of a settlement;
(ii) advances may be made only upon receipt of a written promise by, or on
behalf of, the recipient to repay that amount of the advance which exceeds the
amount which it is ultimately determined that he is entitled to receive from the
Registrant by reason of indemnification; and (iii)(a) such promise must be
secured by a surety bond, other suitable insurance or an equivalent form of
security which assures that any repayments may be obtained by the Registrant
without delay or litigation, which bond, insurance or other form of security
must be provided by the recipient of the advance, or (b) a majority of a quorum
of the Registrant's disinterested, non-party Trustees, or an independent legal
counsel in a written opinion, shall determine, based upon a review of readily
available facts, that the recipient of the advance ultimately will be found
entitled to indemnification.
 
                                      C-3
<PAGE>
    In Section 9 of the Distribution Agreements relating to the securities being
offered hereby, the Registrant agrees to indemnify the Distributor and each
person, if any, who controls the Distributor within the meaning of the
Securities Act of 1933 (the "Act"), against certain types of civil liabilities
arising in connection with the Registration Statement or Prospectus and
Statement of Additional Information.
 
    Insofar as indemnification for liabilities arising under the Act may be
permitted to Trustees, officers and controlling persons of the Registrant and
the principal underwriter pursuant to the foregoing provisions or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and, therefore is unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a Trustee, officer, or controlling person of the Registrant
and the principal underwriter in connection with the successful defense of any
action, suit or proceeding) is asserted by such Trustee, officer or controlling
person or the principal underwriter in connection with the shares being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.
 
ITEM 28. BUSINESS AND OTHER CONNECTIONS OF MANAGER.
 
   
    Merrill Lynch Asset Management, L.P. (the "Manager") acts as manager for the
following other registered investment companies: Convertible Holdings, Inc.,
Merrill Lynch Adjustable Rate Securities Fund, Inc., Merrill Lynch Americas
Income Fund, Inc., Merrill Lynch Asset Growth Fund, Inc., Merrill Lynch Asset
Income Fund, Inc., Merrill Lynch Balanced Fund for Investment and Retirement, 
Inc., Merrill Lynch Capital Fund, Inc., Merrill Lynch Developing Capital Markets
Fund, Inc., Merrill Lynch Dragon Fund, Inc., Merrill Lynch EuroFund, Merrill 
Lynch Fundamental Growth Fund, Inc., Merrill Lynch Fund for Tomorrow, Inc., 
Merrill Lynch Global Allocation Fund, Inc., Merrill Lynch Global Bond Fund for
Investment and Retirement, Merrill Lynch Global Convertible Fund, Inc., Merrill
Lynch Global Holdings, Inc., Merrill Lynch Global Resources Trust, Merrill Lynch
Global SmallCap Fund, Inc., Merrill Lynch Global Utility Fund, Inc., Merrill
Lynch Growth Fund for Investment and Retirement, Merrill Lynch Healthcare Fund,
Inc., Merrill Lynch High Income Municipal Bond Fund, Inc., Merrill Lynch
Institutional Intermediate Fund, Merrill Lynch International Equity Fund,
Merrill Lynch Latin America Fund, Inc., Merrill Lynch Middle East/Africa Fund,
Inc., Merrill Lynch Pacific Fund, Inc., Merrill Lynch Ready Assets Trust,
Merrill Lynch Retirement Asset Builder, Inc., Merrill Lynch Retirement Series 
Trust, Merrill Lynch Senior Floating Rate Fund, Inc., Merrill Lynch Series 
Fund, Inc., Merrill Lynch Short-Term Global Income Fund, Inc., Merrill Lynch 
Strategic Dividend Fund, Merrill Lynch Technology Fund, Inc., Merrill Lynch 
U.S.A. Government Reserves, Merrill Lynch U.S. Treasury Money Fund, Merrill 
Lynch Utility Income Fund, Inc. and Merrill Lynch Variable Series Funds, Inc.
    
 
    Fund Asset Management, L.P. ("FAM"), an affiliate of the Manager, acts as
the investment adviser for the following investment companies: Apex Municipal
Fund, Inc., CBA Money Fund, CMA Government Securities Fund, CMA Money Fund, CMA
Multi-State Municipal Series Trust, CMA Tax-Exempt Fund, CMA Treasury Fund, The
Corporate Fund Accumulation Program, Inc., Corporate High Yield Fund, Inc.,
Corporate High Yield Fund II, Inc., Emerging Tigers Fund, Inc., Financial
Institutions Series Trust, Income Opportunities Fund 1999, Inc., Income
Opportunities Fund 2000, Inc., Merrill Lynch Basic Value Fund, Inc., Merrill
Lynch California Municipal Series Trust, Merrill Lynch Corporate Bond Fund,
Inc., Merrill Lynch Federal Securities Trust, Merrill Lynch Funds for
Institutions Series, Merrill Lynch Multi-State Limited Maturity Municipal Series
Trust, Merrill Lynch Multi-State Municipal Series Trust, Merrill Lynch Municipal
Bond Fund, Inc., Merrill Lynch Phoenix Fund, Inc., Merrill Lynch Special Value
Fund, Inc., Merrill Lynch World Income Fund, Inc., MuniAssets Fund, Inc.,
MuniBond Income Fund, Inc., The Municipal Fund Accumulation Program, Inc.,
MuniEnhanced Fund, Inc., MuniInsured Fund, Inc., MuniVest Fund, Inc., MuniVest
Fund II, Inc.,
 
                                      C-4
<PAGE>
MuniVest California Insured Fund, Inc., MuniVest Florida Fund, MuniVest Michigan
Insured Fund, Inc., MuniVest New Jersey Fund, Inc., MuniVest New York Insured
Fund, Inc., MuniVest Pennsylvania Insured Fund, MuniYield Arizona Fund, Inc.,
MuniYield Arizona Fund II, Inc., MuniYield California Fund, Inc., MuniYield
California Insured Fund, Inc., MuniYield California Insured Fund II, Inc.,
MuniYield Florida Fund, MuniYield Florida Insured Fund, MuniYield Fund, Inc.,
MuniYield Insured Fund, Inc., MuniYield Insured Fund II, Inc., MuniYield
Michigan Fund, Inc., MuniYield Michigan Insured Fund, Inc., MuniYield New Jersey
Fund, Inc., MuniYield New Jersey Insured Fund, Inc., MuniYield New York Insured
Fund, Inc., MuniYield New York Insured Fund II, Inc., MuniYield New York Insured
Fund III, Inc., MuniYield Pennsylvania Fund, MuniYield Quality Fund, Inc.,
MuniYield Quality Fund II, Inc., Senior High Income Portfolio, Inc., Senior High
Income Portfolio II, Inc., Senior Strategic Income Fund, Inc., Taurus
MuniCalifornia Holdings, Inc., Taurus MuniNewYork Holdings, Inc. and WorldWide
DollarVest Fund, Inc.
 
    The address of each of these investment companies is P.O. Box 9011,
Princeton, New Jersey 08543-9011, except that the address of Merrill Lynch Funds
for Institutions Series and Merrill Lynch Institutional Intermediate Fund is One
Financial Center, 15th Floor, Boston, Massachusetts 02111-2646. The address of
the Manager, FAM, Princeton Services, Inc. ("Princeton Services"), Merrill Lynch
Funds Distributor, Inc. ("MLFD") and Princeton Administrators, L.P. is P.O. Box
9011, Princeton, New Jersey 08543-9011. The address of Merrill Lynch, Pierce,
Fenner & Smith Incorporated ("Merrill Lynch") and Merrill Lynch & Co., Inc. ("ML
& Co.") is World Financial Center, North Tower, 250 Vesey Street, New York, New
York 10281. The address of Financial Data Services, Inc. ("FDS") is 4800 Deer
Lake Drive East, Jacksonville, Florida 32246-6484.
 
   
    Set forth below is a list of each executive officer and partner of the
Manager indicating each business, profession, vocation or employment of a
substantial nature in which each such person or entity has been engaged since
November 1, 1992 for his or her or its own account or in the capacity of
director, officer, partner or trustee. In addition, Mr. Zeikel is President, Mr.
Richard is Treasurer and Mr. Glenn is Executive Vice President of substantially
all of the investment companies advised by the Manager and FAM and Messrs.
Durnin, Giordano, Harvey, Hewitt, Kirstein, Monagle and Ms. Griffin are
directors/trustees or officers of one or more of such companies.
    
 
   
<TABLE>
<CAPTION>
                                 POSITION WITH                      OTHER SUBSTANTIAL BUSINESS,
          NAME                    THE MANAGER                    PROFESSION, VOCATION OR EMPLOYMENT
- -------------------------   -----------------------  ----------------------------------------------------------
<S>                         <C>                      <C>
Merrill Lynch & Co., Inc.   Limited Partner          Financial Services Holding Company
  ("ML & Co.")...........
Princeton Services, Inc.    General Partner          General Partner of FAM
  ("Princeton
Services")...............
Arthur Zeikel............   President and Director   President of FAM; President and Director of Princeton
                                                       Services; Director of Merrill Lynch Funds Distributor,
                                                       Inc. ("MLFD"); Executive Vice President of ML & Co.;
                                                       Executive Vice President of Merrill Lynch
Terry K. Glenn...........   Executive Vice           Executive Vice President of FAM; Executive Vice President
                             President                 and Director of Princeton Services; President and
                                                       Director of MLFD; Director of Financial Data Services,
                                                       Inc.; President of Princeton Administrators
Bernard J. Durnin........   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
Vincent R. Giordano......   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
Elizabeth Griffin........   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
</TABLE>
    
 
                                      C-5
<PAGE>
   
<TABLE>
<CAPTION>
                                 POSITION WITH                      OTHER SUBSTANTIAL BUSINESS,
          NAME                    THE MANAGER                    PROFESSION, VOCATION OR EMPLOYMENT
- -------------------------   -----------------------  ----------------------------------------------------------
<S>                         <C>                      <C>
Norman R. Harvey.........   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
N. John Hewitt...........   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
Philip L. Kirstein.......   Senior Vice President,   Senior Vice President, General Counsel and Secretary of
                             General Counsel and       FAM; Senior Vice President, General Counsel, Director
                             Secretary                 and Secretary of Princeton Services; Director of MLFD
Ronald M. Kloss..........   Senior Vice President    Senior Vice President and Controller of FAM; Senior Vice
                             and Controller            President and Controller of Princeton Services
Stephen M.M. Miller......   Senior Vice President    Executive Vice President of Princeton Administrators
Joseph T. Monagle, Jr....   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
Gerald M. Richard........   Senior Vice President    Senior Vice President and Treasurer of FAM; Senior Vice
                             and Treasurer             President and Treasurer of Princeton Services; Vice
                                                       President and Treasurer of MLFD
Ronald L. Welburn........   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
Anthony Wiseman..........   Senior Vice President    Senior Vice President of FAM; Senior Vice President of
                                                       Princeton Services
</TABLE>
    
 
ITEM 29. PRINCIPAL UNDERWRITERS.
 
    (a) MLFD acts as the principal underwriter for the Registrant. MLFD acts as
the principal underwriter for each of the investment companies referred to in
the first paragraph of Item 28 except Apex Municipal Fund, Inc., CBA Money Fund,
CMA Government Securities Fund, CMA Money Fund, CMA Multi-State Municipal Series
Trust, CMA Tax-Exempt Fund, CMA Treasury Fund, Convertible Holdings, Inc., The
Corporate Fund Accumulation Program, Inc., Corporate High Yield Fund, Inc.,
Corporate High Yield Fund II, Inc., Emerging Tigers Fund, Income Opportunities
Fund 1999, Inc., Income Opportunities Fund 2000, Inc., MuniAssets Fund, Inc.,
MuniBond Income Fund, Inc., The Municipal Fund Accumulation Program, Inc.,
MuniEnhanced Fund, Inc., MuniInsured Fund, Inc., MuniVest Fund, Inc., MuniVest
Fund II, Inc., MuniVest California Insured Fund, Inc., MuniVest Florida Fund,
MuniVest Michigan Insured Fund, Inc., MuniVest New Jersey Fund, Inc., MuniVest
New York Insured Fund, Inc., MuniVest Pennsylvania Fund, MuniYield Arizona Fund,
Inc., MuniYield Arizona Fund II, Inc., MuniYield California Fund, Inc.,
MuniYield California Insured Fund, Inc., MuniYield California Insured Fund II,
Inc., MuniYield Florida Fund, MuniYield Florida Insured Fund, MuniYield Fund,
Inc., MuniYield Insured Fund, Inc., MuniYield Insured Fund II, Inc., MuniYield
Michigan Fund, Inc., MuniYield Michigan Insured Fund, Inc., MuniYield New Jersey
Fund, Inc., MuniYield New Jersey Insured Fund, Inc., MuniYield New York Insured
Fund, Inc., MuniYield New York Insured Fund II, Inc., MuniYield New York Insured
Fund III, Inc., MuniYield Pennsylvania Fund, MuniYield Quality Fund, Inc.,
MuniYield Quality Fund II, Inc., Senior High Income Portfolio, Inc., Senior High
Income Portfolio II, Inc., Senior Strategic Income Fund, Inc., Taurus
MuniCalifornia Holdings, Inc., Taurus MuniNewYork Holdings, Inc. and WorldWide
DollarVest Fund, Inc.
 
    (b) Set forth below is information concerning each director and officer of
MLFD. The principal business address of each such person is P.O. Box 9011,
Princeton, New Jersey 08543-9011, except that the address of Messrs. Aldrich,
Brady, Breen, Crook, Graczyk, Fatseas and Wasel is One Financial Center, 15th
Floor, Boston, Massachusetts 02111-2646.
 
                                      C-6
<PAGE>
 
<TABLE>
<CAPTION>
                                                             (2)
                                                    POSITIONS AND OFFICES               (3)
                      (1)                                   WITH               POSITIONS AND OFFICES
                     NAME                                   MLFD                  WITH REGISTRANT
- -----------------------------------------------   -------------------------   -----------------------
<S>                                               <C>                         <C>
Terry K. Glenn.................................   President and Director      Executive Vice
                                                                              President
Arthur Zeikel..................................   Director                    President and Trustee
Philip L. Kirstein.............................   Director                    None
William E. Aldrich.............................   Senior Vice President       None
Robert W. Crook................................   Senior Vice President       None
Kevin P. Boman.................................   Vice President              None
Michael J. Brady...............................   Vice President              None
William M. Breen...............................   Vice President              None
Sharon Creveling...............................   Vice President and          None
                                                    Assistant Treasurer
Mark A. DeSario................................   Vice President              None
James T. Fatseas...............................   Vice President              None
Stanley Graczyk................................   Vice President              None
Michelle T. Lau................................   Vice President              None
Gerald M. Richard..............................   Vice President and          Treasurer
                                                    Treasurer
Salvatore Venezia..............................   Vice President              None
William Wasel..................................   Vice President              None
Robert Harris..................................   Secretary                   None
</TABLE>
 
    (c) Not Applicable.
 
ITEM 30. LOCATION OF ACCOUNTS AND RECORDS.
 
    All accounts, books and other documents required to be maintained by Section
31(a) of the Investment Company Act of 1940, as amended, and the Rules
thereunder will be maintained at the offices of the Registrant, 800 Scudders
Mill Road, Plainsboro, New Jersey 08536, and its transfer agent, Financial Data
Services, Inc., 4800 Deer Lake Drive East, Jacksonville, Florida 32246-6484.
 
ITEM 31. MANAGEMENT SERVICES.
 
    Other than as set forth under the caption "Management of the
Trust--Management and Advisory Arrangements" in the Prospectus constituting Part
A of the Registration Statement and under "Management of the Trust--Management
and Advisory Arrangements" in the Statement of Additional Information
constituting Part B of the Registration Statement, the Registrant is not a party
to any management-related service contract.
 
ITEM 32. UNDERTAKINGS.
 
    (a) Not applicable.
 
    (b) Not applicable.
 
    (c) Registrant undertakes to furnish each person to whom a prospectus is
delivered with a copy of the Registrant's latest annual report to shareholders,
upon request and without charge.
 
                                      C-7
<PAGE>
                                   SIGNATURES
 
   
    Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it meets all of
the requirements for effectiveness of this Post-Effective Amendment to its
Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933
and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the Township of Plainsboro, and
the State of New Jersey, on the 24th day of February, 1995.
    
 
                                          MERRILL LYNCH MUNICIPAL SERIES TRUST
                                          (Registrant)
                                          By          /s/ ARTHUR ZEIKEL
                                          __________________________________
                                                 (Arthur Zeikel, President)
 
    Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated.
 
   
<TABLE>
<CAPTION>
               SIGNATURE                              TITLE                      DATE
- ----------------------------------------  -----------------------------   ------------------
 
<S>                                       <C>                             <C>
           /s/ ARTHUR ZEIKEL              President and Trustee           February 24, 1995
            (Arthur Zeikel)                 (Principal Executive
                                            Officer)
 
         /s/ GERALD M. RICHARD            Treasurer (Principal            February 24, 1995
          (Gerald M. Richard)               Financial and Accounting
                                            Officer)
 
           RONALD W. FORBES*              Trustee
           (Ronald W. Forbes)
 
         CYNTHIA A. MONTGOMERY*           Trustee
        (Cynthia A. Montgomery)
 
           CHARLES C. REILLY*             Trustee
          (Charles C. Reilly)
 
             KEVIN A. RYAN*               Trustee
            (Kevin A. Ryan)
 
            RICHARD R. WEST*              Trustee
           (Richard R. West)
 
*By       /s/ ARTHUR ZEIKEL                                               February 24, 1995
   (Arthur Zeikel, Attorney-in-Fact)
</TABLE>
    
 
                                      C-8
<PAGE>
                                 EXHIBIT INDEX
 
   
<TABLE><CAPTION>

EXHIBIT
NUMBER
- -------
<C>      <S>                                                                               <C>
   1(a)  --Declaration of Trust of the Registrant, dated August 14, 1986
    (b)  --Instrument establishing Merrill Lynch Municipal Income Fund (now Merrill
           Lynch Municipal Intermediate Term Fund) (the "Fund") as a series of the
           Registrant
    (c)  --Amendment of Declaration of Trust of the Registrant, dated October 3, 1988
    (d)  --Instrument establishing Class A shares and Class B shares of the Registrant
    (f)  --Amendment to Declaration of Trust and Establishment and Designation of
           Classes, dated October 17, 1994
     10  --Opinion of Brown & Wood, counsel for the Registrant
     11  --Consent of Deloitte & Touche LLP, independent auditors for the Registrant
  16(c)  --Schedule of computation of each performance quotation provided in the
           Registration Statement in response to Item 22 (relating to Class C shares)
    (d)  --Schedule of computation of each performance quotation provided in the
           Registration Statement in response to Item 22 (relating to Class D shares)
  17(a)  --Financial Data Schedule for Class A shares
    (b)  --Financial Data Schedule for Class B shares
    (c)  --Financial Data Schedule for Class C shares
    (d)  --Financial Data Schedule for Class D shares
</TABLE>
    




                                                                Exhibit 1(a)







 DECLARATION OF TRUST



             OF

 MERRILL LYNCH MUNICIPAL
       SERIES TRUST



       THE DECLARATION OF TRUST of Merrill Lynch Municipal Series Trust is made
the 14th day of August, 1986 by the parties signatory hereto, as trustees (such
persons, so long as they shall continue in office in accordance with the terms
of this Declaration of Trust, and all other persons who at the time in question
have been duly elected or appointed as trustees in accordance with the
provisions of this Declaration of Trust and are then in office, being herein
after called  the "Trustees").


WITNESSETH:


      WHEREAS, the Trustees desire to form a trust fund under the laws of
Massachusetts for the investment and reinvestment of funds contributed thereto;
and



      WHEREAS, it is proposed that the benefnicial interest, in the trust assets
be divided into transferable shares of beneficial interest which may, at the
discretion of the Trustees, be divided into separate series as hereinafter
provided;



       NOW, THEREFORE, the Trustees hereby declare that they will hold in trust,
all money and property contributed to the trust fund to manage and dispose of
the same for the benefit of the holders from time to time of the shares of
beneficial interest issued hereunder and subject to the provisions hereof, to
wit:


<PAGE>








 ARTICLE I
 The Trust


       1.1. Name.  The name of the trust created hereby (the "Trust", which term
shall be deemed to include any Series of the Trust when the context requires)
shall be "Merrill Lynch Municipal Series Trust", and so far as may be
practicable the Trustees shall conduct the activities of the Trust, execute all
documents and sue or be sued under that name, which name (and the word "Trust"
wherever hereinafter used) shall refer to the Trustees as Trustees, and not
individually, and shall not refer to the officers, agents, employees or
Shareholders of the Trust or any Series thereof.  Each Series of the Trust which
shall be established and designated by the Trustees pursuant to Section  6.2
shall conduct its activities under such name as the Trustees shall determine and
set forth in the instrument establishing such Series. Should the Trustees
determine that the use of the name of the Trust or any Series is not advisable,
they may,select such other name for the Trust or such Series as they deem proper
and the Trust or Series may conduct its activities under such other name. Any
name change shall be effective upon the execution by a majority of the then
Trustees of an instrument setting forth the new name.  Any such instrument shall
have the status of an amendment to this Declaration.



       1.2. Definitions.  As used in this Declaration, the following terms shall
have the following meanings:

      The terms "Affiliated Person", "Assignment", "Commission", "Interested
Person", "Majority Shareholder Vote" (the 67% or 50% requirement of the third
sentence of Section 2(a)(42) of the 1940 Act, whichever may be applicable) and
"Principal Underwriter" shall have the meanings given them in the 1940 Act.



       "Declaration shall mean this Declaration of Trust as amended from time to
to time.  References in this Declaration to "Declaration", "hereof", "herein"
and "hereunder" shall be deemed to refer to the Declaration rather than the
article or section in which such words appear.

       "Fundamental Policies" shall mean the investment restrictions set forth
in the Prospectus of any Series and designated as fundamental policies therein. 

     "Person" shall mean and include individuals, corporations,       
partnerships, trusts, associations, joint ventures and other 




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<PAGE>



entities, whether or not legal entities, and governments and agencies and
political subdivisions thereof.

      "Prospepctus' shall mean the currently effective Prospectus of any Series
of the Trust under the Securities Act of 1933, as amended, including the
Statement of Additional Information incorporated by reference therein.
 
      "Series" shall mean the separate series that may be established and
designated pursuant to Section 6.2."Shareholders" shall mean as of any
particular time all holders of record of outstanding Shares at such time.

     "Shares" shall mean the equal proportionate transferable units of interest
into which the beneficial interest in any Series of the Trust shall be divided
from time to time and includes fractions of Shares as well as whole Shares.  All
references to Shares shall be deemed to be Shares of any or      all Series as
the context may require.
     
     "Trustees" shall mean the signatories to this Declaration of Trust, so long
as they shall continue in office in accordance with the terms hereof, and all
other persons who at the time in question have been duly elected or appointed
and have qualified as trustees in accordance with the provisions hereof and are
then in office, are herein referred to as the "Trustees", and reference in this
Declaration of Trust to a Trustee or Trustees shall refer to such person or
persons in their capacity as Trustees hereunder.

     "Trust Property' shall mean as of any particular time any and all
prop-property, real or personal, tangible or intangible, which at such time is
owned or held by or for the account of the Trust, any Series thereof or the
Trustees held by or for the account of the Trust, any Series thereof or the
Trustees.  

     The "1940 Act" refers to the Investment Company Act of 1940 and the
regulations promulgated thereunder, as amended from time to time.


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<PAGE>


 ARTICLE II
  Trustees


       2.1.   Number and Qualification.  The number of Trustees shall be fixed
from time to time by written instrument signed by a majority of the Trustees
then in office, provided, however, that the number of Trustees shall in no event
be less than three or more than fifteen (except prior to the first public
offering of Shares).  Any vacancy created by an increase in Trustees may, to the
extent permitted by the 1940 Act, be filled by the appointment of an individual
having the qualifications described in this Article made by a written instrument
signed by a majority of the Trustees then in office.  Any such appointment and
shall not become effective, however, until the individual named in the written
instrument of appointment shall have accepted in writing  such appointment and
agreed in writing to be bound by the terms of this Declaration of Trust.  No
reduction in the number of Trustees shall have the effect of removing a  Trustee
from office prior to the expiration of his term.  Whenever a vacancy the number
of Trustees shall occur, until such vacancy is filled as provided Section 2.3
hereof, the Trustees in office, regardless of their number, shall have all the
powers granted to the Trustees and shall discharge all the duties imposed upon
the Trustees by this Declaration of Trust.  A Trustee shall be individual at
least 21 years of age who is not under legal disability.  Trustees need not own
Shares.



       2.2. Term of Office.  The Trustees shall hold office during the lifetime
of this Trust, and until its termination as hereinafter provided; except (a)
that any Trustee may resign his trust by written instrument signed by him and
delivered to the other Trustees, which shall take effect upon such delivery upon
such later date as is specified therein; (b) that any trustee may removed at any
time by written instrument, signed by at least two-thirds of the number of
Trustees prior to such removal, specifying the date when such removal shall
become effective; (c) that any Trustee who requests in writing to retired or,
who had become incapacitated by illness or injury may be retired written
instrument signed by a majority of the other Trustees, specifying the date of
his retirement; and (d) a Trustee may be removed at any special meeting of the
shareholders by a vote of two-thirds of the outstanding Shares.  Upon 





                                        4


<PAGE>


the resignation or removal of a Trustee, or his otherwise ceasing to be a 
Trustee, he shall execute and deliver such documents as the remaining Trustees 
shall require for the purpose of conveying to the Trust or the remaining 
Trustees any Trust Property held in the name of the resigning or removed
Trustee.    
Upon the incapacity or death of any Trustee, his legal representative shall 
execute and deliver on his behalf such documents as the remaining Trustees shall
require as provided in the preceding sentence.


       2.3.  The term of office of a Trustee shall terminate and vacancy shall
occur in the event of the death, resignation,  bankruptcy, ajudicated
incompetence or other incapacity to perform the duties of the office or removal,
of a Trustee.  No such vacancy shall operate to annul this Declaration of Trust
or to revoke any existing agency created pursuant to the terms of this
Declaration of Trust.  In the case of a vacancy, the Shareholders, acting at
any meeting of Shareholders held in accordance with Section 10.2 hereof, or to
the extent permitted by the 1940 Act, a majority of the Trustees continuing in
office acting by written instrument or instruments, may fill such vacancy, and
any Trustee so elected by the Trustees shall hold office as provided in this
Declaration.


       2.4. Meetings.  Meetings of the Trustees shall be held from time to time
upon the call of the Chairman, if any, the President, the Secretary or any two
Trustees.   Regular meetings of the Trustees may be held without call or notice
at a time and place fixed by the By-Laws or by resolution of the Trustees.
Notice of any other meeting shall be mailed or otherwise given not less than 48
hours before the meeting but may be waived in writing by any Trustee either
before or after such meeting.  The attendance of a Trustee at a meeting shall
constitute a waiver of notice of such meeting except where a Trustee attends a
meeting for the express purpose of objecting to the transaction of any business
on the ground that the meeting has not been lawfully called or convened.  The
Trustees may act with or without a meeting. A quorum for all meetings of the
Trustees shall be a majority of the Trustees.  Unless provided otherwise in 


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<PAGE>


this Declaration of Trust, any action of the Trustees may be taken at a meeting
by vote of a majority of the Trustees present (a quorum being present) or 
without a meeting by written consents of a majority of the Trustees.


Any committee of the Trustees, including an executive committee, if any may act
with or without a meeting. A quorum for all meetings of any such  committee
shall be a majority of the members thereof.  Unless provided  otherwise in this
Declaration, any action of any such committee may be taken at  a me by vote of a
majority of the members present (a quorum being present) or  without a meeting
by written consent of a majority of the members.


       With respect to actions of the Trustees and any committee of the       
Trustees, Trustees who are Interested Persons of the Trust within he       
meaning of Section 1.2 hereof or otherwise interested in any action to be       
taken may be counted for quorum purposes under this Section and shall be 
entitled to vote to the extent permitted by the 1940 Act.


       To the extent permitted by the 1940 Act, all or any one or more Trustees,
may participate in a meeting of the Trustees or any committee thereof by means
of a conference telephone or similar communications equipment by means of which
all persons participating in the meeting can hear each other and participation
in a meeting pursuant to such communications systems shall constitute presence
in person at such meeting.


       2.5.   Officers.   The Trustees shall annually elect a President, a 
Secretary and a Treasurer and may elect a Chairman.  


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<PAGE>


The Trustees may  elect or appoint or authorize the Chairman, if any, or
President to appoint such other officers or agents with such powers as the
Trustees  may deem to be advisable.  The Chairman and President shall be and the
Secretary and Treasurer may, but need not, be a Trustee.

2.6.  By-Laws.   The Trustees may adopt and from time to time amend or repeal
the By-Laws for the conduct of the business of the Trust.


                                   ARTICLE III
                               POWERS OF TRUSTEES

          3.1.   General.   The Trustees shall have exclusive and absolute
control over the Trust Property and over the business of the Trust or any Series
thereof to the same extent as if the Trustees were the sole owners of the Trust
Property and business in their own right, but with such powers of delegation as
may be permitted by this Declaration. The Trustees may perform such acts as in
their sole discretion are proper for conducting the business of the Trust or any
Series thereof.  The           enumeration of any specific power herein shall
not be construed as limiting the aforesaid power. Such powers of the Trustees
may be exercised without order of or resort to any court.


         3.2.  Investments.  The Trustees shall have power, subject to the
Fundamental Policies, to:


         (a) conduct, operate and carry on the business of an investment company


         (b)  subscribe for, invest in, reinvest in, purchase or otherwise 
acquire, hold, pledge, sell, assign, transfer, exchange, distribute or otherwise
deal in or dispose of negotiable or non-negotiable instruments, obligations,
evidences of indebtedness, certificates of deposit or indebtedness, commercial
paper, repurchase agreements, reverse repurchase agreements, options, futures 
contracts and options on futures contracts and other securities, including, 
without limitation, those issued guaranteed or sponsored by any state, 
territory or possession of the United States and the District of Columbia and 
their political sub-divisions, agencies and instrumentalities, or by the 
United StatesGovernment or its agencies or instrumentalities, or 


                                        7


<PAGE>


international instrumentalities, or by any bank, savings institution,
corporation or other business entity organized under the laws of the United
States and, to the extent provided in the Prospectus and not prohibited by the
Fundamental Policies, organized under foreign laws; and to exercise any and, to
the
   rights, powers and privileges of ownership or interest in respect of any and
all such investments of every kind and description, including without
limitation, the right to consent and otherwise act with respect thereto, with
power to designate one or more persons, firms, association or corporations to
exercise any of said rights, powers and privileges in respect of any of said 
instruments; and the Trustees shall be deemed to have the foregoing powers 
with respect to any additional securities in which any Series of the Trust 
may invest should the investment policies set forth in the Prospectus or the 
Fundamental Policies be amended.


       The Trustees shall not be limited to investing in obligations maturing
before the possible termination of the Trust or any Series, nor shall the 
Trustees be limited by any law limiting the investments which may be made by
fiduciaries. 

       3.3. Legal Title.  Legal title to all the Trust Property shall be vested
in the Trustees as joint tenants except that the Trustees shall have power to
cause legal title to any Trust Property to be held by or in the name of one or
more of the Trustees, or in the name of the Trust or any Series thereof, or in
the name of any other Person as nominee, on such terms as the Trustees may
determine, provided that the interest of the Trust or any Series thereof 
therein is appropriately protected.


       The right, title and interest of the Trustees in the Trust Property 
       shall vest automatically in each person who may hereafter become a 
       Trustee upon his due election and qualification.  Upon the resignation, 
       removal or death of a Trustee he shall automatically cease to have any 
       right, title or interest in any of the Trust Property, and the right, 
       title and interest of such Trustee in the Trust Property shall vest 
       automatically in the remaining Trustees.  Such vesting and cessation of 
       title shall be effective whether or not conveyancing documents have been 


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<PAGE>


       executed and delivered.


       3.4. Issuance and Repurchace of Secrurities  The Trustees shall have the
power to issue, sell, repurchase, redeem, retire, cancel, acquire, hold, 
resell, reissue, dispose of, transfer, and otherwise deal in, Shares, including 
shares in fractional denominations, and, subject to the more detailed 
provisions set forth in Articles VIII and IX, to apply to any such repurchase, 
redemption, retirement, cancellation or acquisition of Shares  any funds or 
property of the applicable.  Series of the Trust whether capital or surplus or 
otherwise, to the full extent now or hereafter permitted by the laws of the 
Commonwealth of Massachusetts governing business corporations.  

       3.5.  Borrow Money.     Subject to the Fundamental Policies, the Trustees
shall have power to borrow money or otherwise obtain credit and to secure the
same by mortgaging, pledging or otherwise subjecting as security the assets of
the Trust or any Series thereof, including the lending of portfolio securities,
and to endorse, guarantee, or undertake the performance of any obligation,
contract or engagement of any other person, firm, association or corporation.


       3.6. Delegation: Committees. The Trustees shall have power,consistent
with their continuing exclusive authority over the management of the Trust and
the Trust Property, to delegate from time to time to such of their number or to
officers, employees or agents of the Trust the doing of such things and the
execution of such instruments either in the name of the Trust or the names of
the Trustees or otherwise as the Trustees may deem expedient, to the same 
extent as such delegation is permitted to directors of a Massachusetts business 
corporation and is permitted by the 1940 Act.


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<PAGE>


      3.7.  Collection and Payment.    The Trustees shall have power to collect
all property due to the Trust or any Series thereof; to pay all claims,
including taxes, against the Trust Property; to prosecute, defend, compromise or
abandon any claims relating to the Trust Property; to foreclose any security
interest securing any obligations, by virtue of which any property is owed to
the Trust or any Series thereof; and to enter into releases, agreements and
other instruments.


      3.8.   Expenses. The Trustees shall have power to incur and pay any
expenses which in the opinion of the Trustees are necessary or incidental to
carry out any of the purposes of this Declaration of Trust, and to pay
reasonable compensation from the funds of the Trust to themselves as  Trustees.
The Trustees shall fix the compensation of all officers, employees and Trustees.
The Trustees may pay themselves such compensation for special services including
legal, underwriting, syndicating and brokerage services, as they in good faith
may deem reasonable and reimbursement for expenses reasonably in curred by
themselves on behalf of the Trust.


       3.9.  Miscellaneous Powers.   The Trustees shall have the power to: (a)
employ or contract with such Persons as the Trustees may deem desirable for the
transaction of the business of the Trust or any Series thereof; (b) enter into
joint ventures, partnerships and any other combinations or associations; (c)
purchase, and pay for out of Trust Property, insurance policies insuring the
Shareholders, Trustees, officers, employees, agents, investment advisors,
distributors, selected dealers or independent contractors of the Trust or any


                                       10


<PAGE>


Series thereof against all claims arising by reason of holding any such 
position or by reason of any action taken or omitted by any such Person in such 
capacity, whether or not constituting negligence, or whether or not the Trust 
would have the power to indemnify such Person against such liability; (d) 
establish pension, profit-sharing, share purchase, and other retirement, 
incentive and benefit plans for any Trustees, officers, employees and agents of 
the Trust; (e)make donations, irrespective of benefit to the Trust, for 
charitable, religious, educational, scientific, civic or similar purposes;  (f)
to the extent permitted by law, indemnify any Person with whom the Trust  or any
Series thereof has dealings, including any advisor, administrator,  manager,
distributor and selected dealers with respect to any Series, to such  extent as
the Trustees shall determine; (g) guarantee indebtedness or  contractual
obligations of others; (h) determine and change the fiscal year of  the Trust
and the method in which its accounts shall be kept; and (i) adopt  a seal for
the Trust but the absence of such seal shall not impair the validity  of any
instrument executed on behalf of the Trust.


       3.10.    Further Powers.    The Trustees shall have power to conduct the
business of the Trust or any Series thereof and carry on its operations in any
and all of its branches and maintain offices both within and without the
Commonwealth of Massachusetts, in any and all states of the United States of
America, in the District of Columbia, and in any and all commonwealths,
territories, dependencies, colonies, possessions, agencies or instrumentalities
of the United States of America and of foreign governments, and to do all such
other things and execute all such instruments as they deem necessary, proper or
desirable in order to promote the interests of the Trust or any Series therof


                                       11


<PAGE>


although such things are not herein specifically mentioned. Any determination
as to what is in the interests of the Trust or any Series thereof made by the
Trustees in good faith shall be conclusive. In construing the provisions of this
Declaration, the presumption shall be in favor of a grant of power to the
Trustees.   The Trustees will not be required to obtain any court order to deal
with the Trust Property.


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<PAGE>



                     ARTICLE IV
 Advisory, Management and Distribution Arrangements


       4.1. Advisory    Arrangements. Subject to a Majority Sharholder Vote of
the applicable Series, as required by the 1940 Act, the Trustees may in their
discretion from time to time enter into advisory or management contracts whereby
the other party to such contract shall undertake to furnish the Trustees such
advisory and management services, with respect to a Series as the Trustees shall
from time to time consider desirable and all upon such terms and conditions as
the Trustees may in their discretion determine. Notwithstanding any provisions
of this Declaration of Trust,the Trustees may authorize any advisor or manager
(subject to such general or specific instructions as the Trustees may from time
to time adopt) to effect purchases, sales, loans or exchanges of portfolio  
securities of any Series of the Trust on behalf of the Trustees or may authorize
any officer, employee or Trustee to effect such purchases, sales, loans or
exchanges pursuant to recommendations of any such advisor, administrator or
manager (and all without further action by the Trustees).   Any such purchases,
sales, loans and exchanges shall be deemed to have been authorized by all of the
Trustees.


       4.2.   Distribution Arrangements.The Trustees may in their discretion
from time to time enter into a contract, providing for the sale of the Shares 
of the Trust or any Series of the Trust to net the Trust not less than the par
value per share, whereby the Trust may either agree to sell the Shares to the
other party to the contract or appoint such other party its sales agent for 
such Shares. In either case, the contract shall be on such terms and conditions 
as the Trustees may in their discretion determine not inconsistent with the


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<PAGE>


provisions of this Article IV or the By-Laws;and such contract may also provide
for the repurchase or sale of Shares by such other party as principal or as
agent of the Trust and may provide that such other party may enter into 
selected dealer agreements with registered securities dealers to further the 
purpose of the distribution or repurchase of the Shares.


       4.3.   Parties to Contract. Any contract of the character described in
Section 4.1 and 4.2 of this Article IV or in Article VII hereof may be entered 
into with any corporation, firm, trust or association, although one or more of
the Trustees or officers of the Trust may be an officer, director, Trustee,
shareholder, or member of such other party to the contract, and no such contract
shall be invalidated or rendered voidable by reason of the existence of any 
such relationship, nor shall any person holding such relationship be liable 
merely by reason of such relationship for any loss or expense to the Trust 
under or by reason of said contract or accountable for any profit realized 
directly or indirectly therefrom, provided that the contract when entered into 
was reasonable and fair and not inconsistent with the provisions of this 
Article IV or the By Laws. The same person (including a firm, corporation, 
trust, or association may be the other party to contracts entered into pursuant 
to Sections 4.1 and 4.2 above or Article VII, and any individual may be 
financially interested or 


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<PAGE>


otherwise affiliated with persons who are parties to any or all of the contracts
mentioned in this Section 4.3.


       4. 4.  Provisions and Amendments.  Any contract entered into pursuant to
Section 4.1 and 4.2 of this Article IV shall be consistent with and subject to
the requirements of Section 15 of the 1940 Act with respect to its continuance
in effect, its termination, and the method of authorization and approval of such
contract or renewal thereof, and no amendment to any contract entered into
pursuant to Section 4.1 shall be effective unless assented to by a Majority
Shareholder Vote of the applicable Series.


 ARTICLE V


 Limitations of Liability of Shareholders,


       5.1. No Personal Liability of Shareholders, Trustees, etc, No Shareholder
shall be subject to any personal liability whatsoever to any Person in
connection with Trust Property or the acts, obligations or affairs of the Trust
or any Series thereof. No Trustee, officer, employee or agent of the Trust shall
be subject to any personal liability whatsoever to any Person, other than the
Trust or its Shareholders, in connection with Trust Property or the affairs of
the Trust or any Series thereof, save only that arising from his bad faith
willful misfeasance, gross negligence or reckless disregard of his duty to such
Person; and all such Persons shall look solely to the Trust Property for
satisfaction of claims of any nature arising in connection with the affairs of
the Trust or any Series thereof. If any Shareholder, Trustee, officer, employee,
or


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<PAGE>


agent, is such, of the Trust, is made a party to any suit or proceeding to
enforce any such liability, he shall not on account thereof, be held to any
personal liability. The Trust shall indemnify and hold each Shareholder harmless
from and against all claims and liabilities, to which such Shareholder may
become subject by reason of his being or having been a Shareholder, and shall
reimburse such Shareholder for all legal and other expenses reasonably incurred
by him in connection with any such claim or liability.The rights accruing to a
Shareholder under this Section 5.1 shall not exclude any other right to which
such Shareholder may be lawfully entitled, nor shall anything herein contained
restrict the right of the Trust to indemnify or reimburse a Shareholder in any
appropriate situation even though not specifically provided herein.


       5.2.  Non-Liability of Trustees, etc.  No Trustee, officer, employee or
agent of the Trust shall be liable to the Trust, any Series, its Shareholders,
or to any Shareholder, Trustee, officer, employee, or agent thereof for any
action or failure to act (including without limitation the failure to compel in
any way any former or acting Trustee to redress any breach of trust) except for
his own bad faith, willful misfeasance, gross negligence or reckless disregard
of his duties.


       5.3.  Mandatory Indemnification. The Trust shall indemnify each of its
Trustees, officers, employees, and agents (including persons who serve at its
request as directors, officers or trustees of another organization in which it
has any interest, as a shareholder, creditor or otherwise) against all
liabilities and expenses (including amounts paid in satisfaction of judgments,


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<PAGE>


in compromise, as fines and penalties, and as counsel fees) reasonably incurred
by him in connection with the defense or disposition of any action, suit or
other proceeding, whether civil or criminal,in which he may be involved or with
which he may be threatened, while in office or thereafter, by reason of his
being or having been such a trustee, officer, employee or agent, except with
respect to any matter as to which he shall have been adjudicated to have acted
in bad faith, willful misfeasance, gross negligence or reckless disregard of 
his duties; provided, however, that as to any matter disposed of by a 
compromise


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<PAGE>


payment by such person, pursuant to a consent decree or otherwise, no
indemnification either for said payment or for any other expenses shall be
provided unless the Trust shall have received a written opinion from independent
legal counsel approved by the Trustees to the effect that if either the matter
of willful misfeasance, gross negligence or reckless disregard of duty, or the
matter of good faith and reasonable belief as to the best interests of the
Trust, had been adjudicated, it would have been adjudicated in favor of such
person.  The rights accruing to any Person under these provisions shall not
exclude any other right to which he may be lawfully entitled; provided that no
Person may satisfy any right of indemnity or reimbursement granted herein or in
Section 5.1 or to which he may be otherwise entitled except out of the property
of the Trust, and no Shareholder shall be personally liable to any Person with
respect to any claim for indemnity or reimbursement or otherwise.  The Trustees
may make advance payments in connection with indemnification under this Section
5.3, provided that the indemnified person shall have given a written undertaking
to reimburse the Trust in the event it is subsequently determined that he is 
not entitled to such indemnification.


       5.4.  No Bond Required of Trustees.  No Trustee shall, as such, be
obligated to give any bond or security or other security for the performance of
any of his duties hereunder.

       5.5. No Duty of Investigation; Notice in Trust Instruments, etc, No
purchaser, lender, transfer agent or other person dealing with the Trustees or
any officer, employee or agent of the Trust shall be bound to make any inquiry
concerning the validity of any transaction purporting to be made by the 
Trustees or by said officer, employee or agent or be liable for the application 


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<PAGE>


of money or property paid, loaned, or delivered to or on the order of the 
Trustees or of said officer, employee or agent.  Every obligation, contract, 
undertaking, instrument, certificate, Share, other security of the Trust or any 
Series, and every  other act or thing whatsoever executed in connection with 
the Trust or any Series shall be conclusively taken to have been executed or 
done by the executors thereof only in their capacity as Trustees under this
Declaration of Trust or in their capacity as officers, employees or agents of
the Trust. Every written obligation, contract,undertaking, instrument,
certificate, Share, other security of the Trust or any Series made or issued by
the Trustees or by any officers, employees or agents of the Trust, in their
capacity as such, shall contain an appropriate recital to the effect that the
Shareholders, Trustees, officers, employees and agents of the Trust shall not
personally be bound by or liable thereunder, nor shall resort be had to their
private property for the satisfaction of any obligation or claim thereunder, and
appropriate references shall be made therein to the Declaration of Trust, and
may contain any further recital which they may deem appropriate, but the
omission of such recital shall not operate to impose personal liability on any
of the Trustees, Shareholders, officers, employees or agents of the Trust. The
Trustees may maintain insurance for the protection of the Trust Property, its
Shareholders, Trustees, officers employees and agents in such amount as the
Trustees shall deem adequate to  cover possible tort liability, and such other
insurance as the Trustees in  their sole judgment shall deem advisable.


       5.6.  Reliance on Experts, etc,Each Trustee and officer or employee of
the Trust shall, in the performance of his duties, be fully and completely jus-
tified and protected with regard to any act or any failure to act resulting 


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<PAGE>


from reliance in good faith upon the books of account or other records of the 
Trust, upon an opinion of counsel, or upon reports made to the Trust by any of 
its officers or employees or by any advisor, administrator, manager, 
distributor, selected dealer, accountant, appraiser or other expert or 
consultant selected with reasonable care by the Trustees, officers or employees 
of the Trust, regardless of whether such counsel or expert may also be a 
Trustee. 


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<PAGE>


                                   ARTICLE VI
                          SHARES OF BENEFICIAL INTEREST


       6 .1.  Beneficial Interest.  The interest of the beneficiaries hereunder
shall be divided into transferable shares of beneficial interest with par value
$.10 per share.   The number of such shares of beneficial interest authorized
hereunder is unlimited.   All Shares issued hereunder including, without limi-
tation, Shares issued in connection with a dividend in Shares or a split of
Shares, shall be fully paid and nonassessable.


       6.2. Series Designation.   The Trustees, in their discretion from time to
time, may authorize the division of Shares into two or more Series, each Series
relating to a separate portfolio of investments.  The different Series shall be
established and designated, and the variations in the relative rights and
preferences as between the different Series shall be fixed and determined, by
the Trustees; provided,that all Shares shall be identical except that there may
be variations between different Series as to purchase price, determination of
net asset value, the price, terms and manner of redemption,special and relative
rights as to dividends and on liquidation, conversion rights, and conditions
under which the several Series shall have separate voting rights. All refer-
ences to Shares in this Declaration shall be deemed to be shares of any or all
Series as the context may require.


       If the Trustees shall divide the Shares into two or more Series, the
following provisions shall be applicable:


       (a) The number of Shares of each Series that may be issued shall be
unlimited.  The Trustees may classify or reclassify any unissued Shares or any


                                       21


<PAGE>


Shares previously issued and reacquired of any Series into one or more Series
that may be established and designated from time to time.The Trustees may hold
as treasury Shares (of the same or some other Series), reissue for such
consideration and on such terms as they may determine, or cancel any Shares of
any Series reacquired by the Trust at their discretion from time to time.


       (b)  The power of the Trustees to invest and reinvest the Trust Property
of each Series that may be established shall be governed by Section 3.2 of this
Declaration.


       (c)  All consideration received by 'the Trust for the issue or sale of
Shares of a particular Series, together with all assets in which such consid-
eration is invested or reinvested, all income, earnings, profits, and proceeds
thereof, including any proceeds derived from the sale, exchange or liquidation
of such assets, and any funds or payments derived from any reinvestment of such
proceeds in whatever form the same may be, shall  irrevocably belong to that
Series for all purposes, subject only to the rights of creditors, and shall be
so recorded upon the books of account of the Trust. In the event that there are
any assets, income, earnings, profits, and proceeds thereof, funds, or payments
which are not readily identifiable as belonging to any particular Series, the


                                       22


<PAGE>


Trustees shall allocate them among any one or more of the Series established
and designated from time to time in such manner and on such basis as they, in
their sole discretion, deem fair and equitable.  Each such allocation by the
Trustees shall be conclusive and binding upon the shareholders of all Series for
all purposes.


       (d) The assets belonging to each particular Series shall be charged with
the liabilities of the Trust in respect of that Series only and all expenses,
costs,charges and reserves attributable to that Series and shall not be charged
with the liabilities, expenses, costs, charges and reserves attributable to
other Series, and any general liabilities, expenses, costs, charges or reserves
of the Trust which are not readily identifiable as belonging to any particular
Series shall be allocated and charged by the Trustees to and among any one or
more of the Series established and designated from time to time in such manner
and on such basis as the Trustees in their sole discretion deem fair and
equitable. Each allocation of liabilities, expenses, costs, charges and reserves
by the Trustees shall be conclusive and binding upon the holders of  all Series
for all purposes. The Trustees shall have full discretion, to the  extent not
inconsistent with the 1940 Act, to determine which items shall be  treated as
income and which items as capital; and each such determination and  allocation
shall be conclusive and binding upon the Shareholders.


       (e) The power of the Trustees to pay dividends and make distributions
with respect to any one or more Series shall be governed by Section 9.2 of this
Trust.  Dividends and distributions on Shares of a particular Series may be paid


                                       23


<PAGE>


with such frequency as the Trustees may determine, to the holders of Shares of
that Series, from such of the income and capital gains, accrued or realized,
from the assets belonging to that Series, as the Trustees may determine, after
providing for actual and accrued liabilities belonging to that Series.  All
dividends and distributions on Shares of a particular Series shall be
distributed pro rata to the holders of that Series in proportion to the number
of Shares of that Series held by such holders at the date and time of record
established for the payment of such dividends or distributions.


       The establishment and designation of any Series of Shares shall be
effective upon the execution by a majority of the then Trustees of an instrument
setting forth the establishment and designation of such Series.  Such instrument
shall also set forth any rights and preferences of such Series which are in
addition to the rights and preferences of Shares set forth in this Declaration.
At any time that there are no Shares outstanding of any particular Series
previously established and designated, the Trustees may by an instrument
executed by a majority of their number abolish that Series and the establishment
and designation thereof. Each instrument referred to in this paragraph shall
have the status of an amendment to this Declaration.


       6.3.  Rights of Shareholders. The ownership of the Trust Property of
every description and the right to conduct any business herein  before described
are vested exclusively in the Trustees, and the Shareholders shall have no in-
terest therein other than the beneficial interest conferred by their Shares 
with respect to a particular Series, and they shall have no right to call for 
any  


                                       24


<PAGE>


partition or division of any property, profits, rights or interests of the 
Trust nor can they be called upon to share or assume any losses of the Trust or
suffer an assessment of any kind by virtue of their ownership of Shares. The
Shares  shall be personal property giving only the rights in this Declaration
specifically set forth.  The Shares shall not entitle the holder to preference,
preemptive, appraisal, conversion or exchange rights (except for rights of
appraisal specified in Section 11.4).


       6.4. Trust Only.  It is the intention of the Trustees to create only the
relationship of Trustee and beneficiary between the Trustees and each Share-
holder from time to time.  It is not the intention of the Trustees to create a
general partnership, limited partnership, joint stock association, corporation,
bailment or any form of legal relationship other than a trust.  Nothing in this
Declaration of Trust shall be construed to make the Shareholders, either by
themselves or with the Trustees, partners or members of a joint stock
association.


       6.5.  Issuance of Shares.  The Trustees, in their discretion, may from
time to time without vote of the Shareholders issue Shares with respect to any
Series that may have been established pursuant to Section 6.2, in addition to
the then issued and outstanding Shares and Shares held in the treasury, to such
party or parties and for such amount not less than par value and type of con-
sideration, including cash or property, at such time or times (including,
without limitation, each business day in accordance with the maintenance of a
constant net asset value per share as set forth in Section 9.3 hereof), and on
such terms as the Trustees may deem best, and may in such manner acquire other


                                       25


<PAGE>


assets (including the acquisition of assets subject to, and in connection with
the assumption of, liabilities) and businesses.In connection with any issuance
of Shares, the Trustees may issue fractional Shares. The Trustees may from time
to time divide or combine the Shares of any Series into a greater or lesser
number without thereby changing the proportionate beneficial interests in such
Series of the Trust. Reductions in the number of outstanding Shares may be made
pursuant to the constant net asset value per share formula set forth in Section
9.3.  Contributions to the Trust may be accepted for, and Shares shall be
redeemed as, whole Shares and/or 1/1,000ths of a Share or multiples thereof.


       6.6.  Register of Shares. A register shall be kept at the Trust or any
transfer agent duly appointed by the Trustees under the direction of the
Trustees which shall contain the names and addresses of the Shareholders and 
the number of Shares (with respect to each Series that may have been e
stablished) held by them respectively and a  record of all transfers thereof. 
Separate registers shall be established and maintained for each Series of the 
Trust. Each such register shall be conclusive as to who are the holders of the 
Shares of the applicable Series and who shall be entitled to receive dividends 
or distributions or otherwise to exercise or enjoy the rights of Shareholders.  
No Shareholder shall be entitled to receive payment of any dividend or 
distribution, nor to have notice given to him as herein provided, until he has 
given his address to a transfer agent or such other officer or agent of the 
Trustees as shall keep the register for entry thereon. It is not contemplated 
that certificates will be issued for the Shares; however, the Trustees, in 
their discretion, may authorize the issuance of share certificates and
promulgate appropriate rules 
and regulations as to their use.


                                       26


<PAGE>


       6. 7.  Transfer Agent and Registrar. The Trustee shall have power to
employ a transfer agent or transfer agents, and a registrar or registrars, with
respect to the Shares of the various Series. The transfer agent or transfer
agents may keep the applicable register and record therein the original issues
and transfers, if any, of the said Shares of the applicable Series. Any such
transfer agent and registrars shall perform the duties usually performed by
transfer agents and registrars of certificates of stock in a corporation, 
except as modified by the Trustees.


       6.8. Transfer of Shares.  Shares shall be transferable on the records of
the Trust only by the record holder thereof or by his agent thereto duly au-
thorized in writing, upon delivery to the Trustees or a transfer agent of the
Trust of a duly executed instrument of transfer, together with such evidence of
the genuineness of each such execution and authorization and of other matters 
as may reasonably be required.Upon such delivery the transfer shall be recorded
on the applicable register of the Trust.  Until such record is made, the Share-
holder of record shall be deemed to be the holder of such Shares for all pur-
poses hereof and neither the Trustees nor any transfer agent or registrar nor
any officer, employee or agent of the Trust shall be affected by any notice of
the proposed transfer.


       Any person becoming entitled to any Shares in consequence of the death,
bankruptcy, or incompetence of any Shareholder, or otherwise by operation of
law, shall be recorded on the applicable register of Shares as the holder of
such Shares upon production of the proper evidence thereof to the Trustees or a


                                       27


<PAGE>


transfer agent of the Trust, but until such record is made, the Shareholder of
record shall be deemed to be the holder of such Shares for all purposes hereof
and neither the Trustees nor any transfer agent or registrar nor any officer or
agent of the Trust shall be affected by any notice of such death, bankruptcy or
incompetence, or other operation of law.


       6.9. Notices.  Any and all notices to which any Shareholder hereunder may
be entitled and any and all communications shall be deemed duly served or given
if mailed, postage prepaid, addressed to any Shareholder of record at his last
known address as recorded on the applicable register of the Trust.


                                       28



<PAGE>


 ARTICLE VII
 Custodians


       7.1.  Appointment and Duties. The Trustees shall at all times employ a
custodian or custodians, meeting the qualifications for custodians for 
portfolio securities of investment companies contained in the 1940 Act, as 
custodian with respect to each Series of the Trust. It is contemplated that 
separate custodians may be employed for the different Series of the Trust. Any 
custodian, acting with respect to one or more Series, shall have authority as 
agent of the Trust or the Series with respect to which it is acting, but 
subject to such restrictions, limitations and other requirements, if any, as 
may be contained in the By-Laws of the Trust and the 1940 Act:


     (1)   to hold the securities owned by the Trust or the Series and deliver
the same upon written order;


       (2)  to receive and receipt for any moneys due to the Trust or the Series
and deposit the same in its own banking department (if a bank) or elsewhere as
the Trustees may direct;


       (3)  to disburse such funds upon orders or vouchers;

       (4)  if authorized by the Trustees, to keep the books and accounts of the
Trust or the Series and furnish clerical and accounting services;
and


       (5)  if authorized to do so by the Trustees, to compute the net income of
the Trust or the Series,




                                       29


<PAGE>


all upon such basis of compensation as may be agreed upon between the Trustees
and the custodian.  If so directed by a Majority Shareholder Vote of the Series
with respect to which the custodian is acting, the custodian shall deliver and
pay over all property of the Trust held by it as specified in such vote.


       The Trustees may also authorize each custodian to employ one or more
sub-custodians from time to time to perform such of time acts and services of
the custodian and upon such terms and conditions, as may be agreed upon between
the custodian and such sub-custodian and approved by the Trustees, provided that
in every case such sub-custodian shall meet the qualifications for custodians
contained in the 1940 Act.


       7.2. Central Certificate System. Subject to such rules, regulations and
order as the Commission may adopt, the Trustees may direct the custodian to
deposit all or any part of the securities owned by the Trust or the Series in a
system for the central handling of securities established by a national
securities exchange or a national securities association registered with the
Commission under the Securities Exchange Act of 1934, or such other person as
may be permitted by the Commission, or otherwise in accordance with the 1940


                                       30


<PAGE>


Act, pursuant to which system all securities of any particular class or series
of any issuer deposited within the system are treated as fungible and may be
transferred or pledged by bookkeeping entry without physical delivery of such
securities, provided that all such deposits shall be subject to withdrawal only
upon the order of the Trust.


                                       31


<PAGE>


 ARTICLE VIII
  Redemption


      8.1. Redemptions. All outstanding Shares of any Series of the Trust may
  be redeemed at the option of the holders thereof, upon and subject to the
  terms and conditions provided in this Article VIII. The Trust shall, upon
  application of any Shareholder or pursuant to authorization from any
  Shareholder of a particular Series, redeem or repurchase from such Shareholder
  outstanding Shares of such Series for an amount per share determined by the
  application of a formula adopted for such purpose by the Trustees with respect
  to such Series (which formula shall be consistent with the 1940 Act); provided
  that (a) such amount per share shall not exceed the cash equivalent of the
  proportionate interest of each share in the assets of the Series of the Trust
  at the time of the purchase or redemption and (b) if so authorized by the
  Trustees, the Trust may, at any time and from time to time, charge fees for
  effecting such redemption, at such rates as the Trustees may establish, as and

  to the extent permitted under the 1940 Act, and may, at any time and from time

  to time, pursuant to such Act, suspend such right of redemption. The 
  procedures for effecting redemption shall be as set forth in the Prospectus 
  with respect to the applicable Series from time to time.

       8.2. Redemption of Shares; Disclosure of Holding. If the Trustees shall,
  at any time and in good faith, be of the opinion that direct or indirect
  ownership of Shares or other securities of the Trust has or may become concen-
  trated in any person to an extent which would disqualify the Trust as a regu-
  lated investment company under the Internal Revenue Code, then the Trustees
  shall have the power by lot or other means deemed equitable by them (i) to 
  call for redemption a number, or principal amount, of Shares or other 


                                       32


<PAGE>


  securities of the Trust sufficient, in the opinion of the Trustees, to 
  maintain or bring the direct or indirect ownership of Shares or other 
  securities of the Trust into conformity with the requirements for such 
  qualification and (ii) to refuse to transfer or issue Shares or other 
  securities of the Trust to any Person whose acquisition of the Shares or other

  securities of the Trust in question would in the opinion of the Trustees 
  result in such disqualification. The redemption shall be effected at a 
  redemption pride determined in accordance with Section 8.I.

  The holders of Shares or other securities of the Trust shall upon demand dis-
  close to the Trustees in writing such information with respect to direct and
  indirect ownership of Shares or other securities of the Trust as the Trustees
  deem necessary to comply with the provisions of the Internal Revenue Code, or 
  to comply with the requirements of any other taxing authority.

        8.3.  Redemptions of Accounts of Less than $l,000. Due to the relatively
  high cost of maintaining investment accounts of less than $1,000, the Trustees
  shall have the power to redeem shares at a redemption price determined in
  accordance with Section 8.1 if at any time the total investment in such 
  account does not have a value of at least $1,000; provided, however, that 
  the Trustees 


                                       33


<PAGE>


may not exercise such power with respect to Shares of any Series if the
Prospectus of such Series does not describe such power.In the event the
Trustees determine to exercise their power to redeem Shares provided in this 
Section 8.3, shareholders shall be notified that the value of their account  is
less than $1,000 and allowed 60 days to make an additional investment before 
redemption is processed.


       8.4. Redemptions Pursuant to Constant Net Asset Value Formula.The Trust
may also reduce the number of outstanding Shares of any Series pursuant to the
provisions of Section 9.3.


                                       34


<PAGE>


 ARTICLE IX


 Determination of Net Asset Value,


 Net Income and Distributions


       9.1.  Net Asset Value. The net asset value of each outstanding Share of
each Series of the Trust shall be determined at such time or times on such days
as the Trustees may determine, in accordance with the 1940 Act, with respect to
each Series. The method of determination of net asset value shall be determined
by the Trustees and shall be as set forth in the Prospectus with respect to the
applicable Series.   The power and duty to make the daily calculations for any
Series may be delegated by the Trustees to the adviser, administrator, manager,
custodian, transfer agent or such other person as the Trustees may determine.
The Trustees may suspend the daily determination of net asset value to the
extent permitted by the 1940 Act.

       9.2. Distributions to Shareholders.  The Trustees shall from time to time
distribute ratably among the Shareholders of any Series such proportion of the
net profits, surplus (including paid-in surplus), capital, or assets with re-
spect to such Series held by the Trustees as they may deem proper. Such distri-
bution may be made in cash or property (including without limitation any type 
of obligations of the Trust or any assets thereof), and the Trustees may 
distribute ratably among the Shareholders of any Series additional Shares of 
such Series in such manner, at such times, and on such terms as the Trustees 
may deem proper. Such distributions may be among the Shareholders of record  at
the time of declaring a distribution or among the Shareholders of record at 


                                       35


<PAGE>


such later date as the Trustees shall determine.The Trustees may always retain 
from the net profits such amount as they may deem necessary to pay the debts or 
expenses of the Trust or to meet obligations of the Trust, or as they may deem 
desirable to use in the conduct of its affairs or to retain for future 
requirements or extensions of the business. The Trustees may adopt and offer  to
Shareholders of any Series such dividend reinvestment plans, cash dividend 
payout plans or related plans as the Trustees shall deem appropriate for such 
Series.

   Inasmuch as the computation of net income and gains for Federal income tax
purposes may vary from the computation thereof on the books, the above provi-
sions shall be interpreted to give the Trustees the power in their discretion 
to distribute for any fiscal year as ordinary dividends and as capital gains 
distributions, respectively, additional amounts sufficient to enable the Trust 
to avoid or reduce liability for taxes. 

 
       9.3.   Constant Net Asset Value; Reduction of Outstanding Shares.The
Trustees shall have the power to determine the net income of any Series of the
Trust on each day the net asset value of such Series is determined as provided
in Section 9.1 and at each such determination declare such net income for such
Series as dividends with the result that the net asset value per share of the
Series of the Trust shall remain at a constant dollar value.  The determination
of net income and the resultant declaration of dividends shall be as set forth
in the Prospectus.  In such event fluctuations in value may be reflected in the


number of outstanding Shares in each Shareholder's account.  It is expected
that each Series of the Trust will have a positive net income at the time of
each


                                       36


<PAGE>


determination.  If for any reason such net income is a negative amount, the
Trust may offset such amount against dividends accrued in the account of the
Shareholder of the applicable Series.If and to the extent such negative amount
exceeds such accrued dividends, the Trust shall have authority to reduce the
number of the outstanding Shares of the Series. Such reduction will be effected
by having each Shareholder proportionately contributing to the Series capital
the necessary Shares that represent the amount of the excess upon such
determination. Each Shareholder will be deemed to have agreed to such
contribution in these circumstances by his investment in the Series of the
Trust. This procedure will permit the net asset value per share of the Series of
the Trust to be maintained at a constant dollar value per share.


      The Trustees, by resolution, may discontinue or amend the practice of
maintaining the net asset value per share at a constant dollar amount with
respect to any Series at any time and such modification shall be evidenced by
appropriate changes in the Prospectus.


       9.4.  Power to Modify Foregoing Procedures. Notwithstanding any of the
foregoing provisions of this Article IX, the Trustees may prescribe, in their
absolute discretion, such other bases and times for determining the per share
net asset value of the Trust's Shares or net income, or the declaration and
payment of dividends and distributions as they may deem necessary or desirable
to enable the Trust to comply with any provision of the 1940 Act, or any
securities association registered under the Securities Exchange Act of 1934, or
any order of exemption issued by said Commission, all as in effect now or
hereafter amended or modified.


                                       37


<PAGE>


                                     ARTICLE X

                                   Shareholders

       10.1.   Voting Powers. The Shareholders shall have power to vote (i) for
the removal of Trustees as provided in Section 2.2; (ii) with respect to any
advisory or management contract of a Series as provided in Section 4.1; (iii)
with respect to the amendment of this Declaration as provided in Section 11.3;
and (iv) with respect to such additional matters relating to the Trust as may 
be required or authorized by the 1940 Act or other applicable law or by this
Declaration or by the By-Laws of the Trust.


       10.2.   Meetings of Shareholders. Special meetings of the Shareholders
may be called at any time by a majority of the Trustees and shall be called by
any Trustee upon written request of Shareholders of any Series holding in the
aggregate not less than 10% of the outstanding Shares of such Series having
voting rights, such  request specifying the purpose or purposes for which such
meeting is to be called. Any such meeting shall be held within or without the
Commonwealth of Massachusetts on such day and at such time as the Trustees 
shall designate. The holders of one-third of outstanding Shares of each Series
present in person or by proxy shall constitute a quorum for the transaction of
any business, except as may otherwise be required by the 1940 Act or other
applicable.law or by this Declaration or the By-Laws of the Trust. If a quorum
is present at a meeting of a particular Series, the affirmative vote of a
majority of the Shares of such Series represented at the meeting constitutes 
the action of the Shareholders, unless the 1940 Act, other applicable law, this
Declaration or the By-Laws of the Trust requires a greater number of 
affirmative votes.


                                       38


<PAGE>


      10.3.  Notice of Meetings.  Notice of all meetings of the Shareholders,
stating the time, place and purposes of the meeting, shall be given by the
Trustees by mail to each Shareholder at his registered address, mailed at least
10 days and not more than 60 days before the meeting.  Only the business stated
in the notice of the meeting shall be considered at such meeting. Any adjourned
meeting may be held as adjourned without further notice.


       10. 4.  Record Date for Meetings. For the purpose of determining the
Shareholders who are entitled to notice of and to vote at any meeting, or to
participate in any distribution, or for the purpose of any other action, the
Trustees may from time to time close the transfer books for such period,not
exceeding 30 days, as the Trustees may determine; or without closing the
transfer books the Trustees may fix a date not more than 60 days prior to the
date of any meeting of Shareholders or daily dividends or other action as a
record date for the determination of the Persons to be treated as Shareholders
of record for such purposes, except for dividend payments which shall be
governed by Section 9.2 hereof.


     10.5. Proxies, etc.  At any meeting of Shareholders, any holder of Shares
entitled to vote thereat may vote by proxy, provided that no proxy shall be
voted at any meeting unless it shall have been placed on file with the 
Secretary, or with such other officer or agent of the Trust as the Secretary may
direct, for verification prior to the time at which such vote shall be taken.
Pursuant to a resolution of a majority of the Trustees, proxies may be 


                                       39


<PAGE>


solicited in the name of one or more Trustees or one or more of the officers of
the Trust. Only Shareholders of record shall be entitled to vote. Each full 
Share shall be entitled to one vote and fractional Shares shall be entitled to 
a vote of such fraction. When any Share is held jointly by several persons, any 
one of them may vote at any meeting in person or by proxy in respect of such 
Share, but if more than one of them shall be present at such meeting in person 
or by proxy, and such joint owners or their proxies so present disagree as to 
any vote to be cast, such vote shall not be received in respect of such Share.  
      
A proxy purporting to be executed by or on behalf of a Shareholder shall be 
deemed valid unless challenged at or prior to its exercise, and the burden of 
proving invalidity shall rest on the challenger. If the holder of any such 
Share is a minor or a person of unsound mind, and subject to guardianship or  to
the legal control of any other person as regards the charge or management  of
such Share, he may vote by his guardian or such other person appointed or 
having such control, and such vote may be given in person or by proxy.


       10.6. Reports.The Trustees shall cause to be prepared with respect to
each Series at least annually a report of operations containing a balance sheet
and statement of income and undistributed income of the applicable Series of 
the Trust prepared in conformity with generally accepted accounting principles 
and an opinion of an independent public accountant on such financial 
statements. It is contemplated that separate reports may be prepared for the 
various Series. Copies of such reports shall be mailed to all Shareholders of 
record of the applicable Series within the time required by the 1940 Act, and 
in any event within a reasonable period preceding the annual meeting of 


                                       40


<PAGE>


Shareholders. The Trustees shall, in addition, furnish to the Shareholders at 
least annually, interim reports containing an unaudited balance sheet of the 
Series as of the end of such period and an unaudited statement of income and 
surplus for the period from the beginning of the current fiscal year to the  end
of such period. 


       10.7.  Inspection of Records. The records of the Trust shall be open to
inspection by Shareholders to the same extent as is permitted shareholders of a
Massachusetts business corporation.


       10.8.  Shareholder Action by Written Consent. Any action which may be
taken by Shareholders may be taken without a meeting if a majority of Share-
holders of each Series entitled to vote on the matter (or such larger proportion
thereof as shall be required by any express provision of this Declaration)
consent to the action in writing and the written consents are filed with the
records of the meetings of Shareholders.  Such consent shall be treated for all
purposes as a vote taken at a meeting of Shareholders.


                                       41


<PAGE>


 ARTICLE XI


 Duration; Termination of Trust;
    Amendment; Mergers, Etc  .


       11.1.  Duration. Subject to possible termination in accordance with the
provisions of Section 11.2 hereof, the Trust created hereby shall continue
until the expiration of 20 years after the death of the last survivor of the
initial Trustees named herein and the following named persons:


       Name                           Address                 Date of Birth

 Avery Moores Bruno             25 Rutgers Place              September 19, 1983
                                Scarsdale, N.Y. 10583

 Avery Daniel Katz              435 E. 70th Street            July 20, 1984
                                New York, N.Y. 10021

 Daryl Lian Kleiman             375 South End Avenue           May 9, 1986
                                (Apt. 27U)
                                New York, N.Y. 10280

 Angus Washburn Smith           12 Masterton Road              October 15, 1982
                                Bronxville, N.Y. 10708

 Elisabeth Lyon Smith           12 Masterton Road              October 15, 1982
                                Bronxville, N.Y. 10708


       11.2. Termination.

         (a) The Trust may be terminated by the affirmative vote of the holders
of not less than two-thirds of the Shares of each Series of the Trust at any
meeting of Shareholders or by an instrument in writing, without a meeting,
signed by a majority of the Trustees and consented to by the holders of not less
than 


                                       42


<PAGE>


two-thirds of such shares.  Any series may be so terminated, by vote or written
consent of no less than two-thirds of the Shares of such series.  Upon the
termination of the Trust or any Series,


       (i) The Trust or such Series shall carry on no business except for the
purpose of winding up its affairs,
 
       ( ii)  The Trustees shall proceed to wind up the affairs of the Trust or
such Series and all of the powers of the Trustees under this Declaration shall
continue until the affairs of the Trust or such Series shall have been wound up,
including the power to fulfill or discharge the contracts of the Trust or such
Series, collect its assets, sell, convey, assign, exchange, transfer or
otherwise dispose of all or any part of the


 


                                       43


<PAGE>


remaining Trust Property to one or more persons at public or private sale
for consideration which may consist in whole or in part of cash, securi-
ties or other property of any kind, discharge or pay its liabilities, and
do all other acts appropriate to liquidate its business; provided that
any sale, conveyance, assignment, exchange, transfer or other disposition
of all or substantially all the Trust Property shall require approval of the
principal terms of the transaction and the nature and amount of the
consideration by vote or consent of the holders of a majority of the Shares
entitled to vote.


     (iii) After paying or adequately providing for the payment of all
liabilities, and upon receipt of such releases, indemnities and refunding
agreements, as they deem necessary for their protection, the Trustees may
distribute the remaining Trust Property of any Series, in cash or in kind or
partly each, among the Shareholders of such Series according to their respective
rights.


         (b) After termination of the Trust or any Series and distribution to
the Shareholders as herein provided, a majority of the Trustees shall execute
and lodge among the records of the Trust an instrument in writing getting forth
the fact of such termination.  Upon termination of the Trust, the Trustees 
shall thereupon be discharged from all further liabilities and duties
hereunder, and the rights and interests of all Shareholders shall thereupon 
cease. Upon termination of any Series, the Trustees shall thereunder be
discharged from all further liabilities and duties with respect to such Series
and the rights and interests of all Shareholders of such Series shall thereupon
cease.


       11.3. Amendment Procedure.

           (a) This Declaration may be amended by the affirmative vote of the
holders of not less than a majority of the Shares at any meeting of 
Shareholders or by an instrument in writing, without a meeting, signed by a 
majority of the Trustees and 


                                       44


<PAGE>


consented to by the holders of not less than a  majority of such Shares. The
Shareholders of each Series shall have the right  to vote separately on
amendments to this Declaration to the extent provided  by Section 10.1. The
Trustees may also amend this Declaration without the vote  or consent of
Shareholders if they deem it necessary to conform this  Declaration to the
requirements of applicable federal laws or regulations or the requirements of 
the regulated investment company provisions of the Internal Revenue Code, but 
the Trustees shall not be liable for failing so to do.


           b) No amendment may be made, under Section 11.3 (a) above, which
would change any rights with respect to any Shares of the Trust by reducing the
amount payable thereon upon liquidation of the Trust or by diminishing or
eliminating any voting rights pertaining thereto, except with the vote or
consent of the holders of two-thirds of the Shares of each Series. Nothing
contained in this Declaration shall permit the amendment of this Declaration to
impair the exemption from personal liability of the Shareholders, Trustees,
officers, em- ployees and agents of the Trust or to permit assessments upon
Shareholders.


             (c) A certification in recordable form signed by a majority of the
Trustees setting forth an amendment and reciting that itwas duly adopted by the
Shareholders or by the Trustees as aforesaid or a copy of the Declaration, as
amended, in recordable form, and executed by a majority of the Trustees, shall
be conclusive evidence of such amendment when lodged among the records of the
Trust.


       Notwithstanding any other provision hereof, until such time as a
Registration Statement under the Securities Act of 1933, as amended, covering
the first public offering of Shares of the Trust shall have become effective,
this Declaration of Trust may be terminated or amended in any respect by the
affirmative vote of a majority of the Trustees or by an instrument signed by a
majority of the Trustees.


       11.4. Merger, Consolidation and Sale of Assets. The Trust may merge or
consolidate with any other corporation, association, trust or other organization
or may sell, lease or exchange all or substantially all of the  Trust Property,
including its good will, upon such terms and conditions and  for such
consideration when and as authorized at any meeting of Shareholders 


                                       45


<PAGE>


called for the purpose by the affirmative vote of the holders of not less than
two-thirds of the Shares of each Series, or by an instrument or instruments in 
writing without a meeting, consented to by the holders of not less than 
two-thirds of such Shares of each Series, and any such merger, consolidation, 
sale, lease or exchange shall be deemed for all purposes to have been
accomplished under and pursuant to the statutes of the Commonwealth of
Massachusetts. Any Series may so merge, consolidate or effect a sale or 
exchange of assets by the vote or written consent of not less than two-thirds of
the Shares of such Series. In respect of any such merger, consolidation, sale or
exchange of assets, any Shareholder shall be entitled to rights of appraisal of
his Shares to the same extent as a shareholder of a Massachusetts  business
corporation in respect of a merger, consolidation, sale or exchange  of assets
of a Massachusetts business corporation, and such rights shall be his  exclusive
remedy in respect of his dissent from any such action.


        11.5. Incorporation. With the approval of the holders of a majority of
the Shares, the Trustees may cause to be organized or assist in organizing a
corporation or corporations under the laws of any jurisdiction or any other
trust, partnership, association or other organization to take over all of the
Trust Property or to carry on any business in which the Trust shall directly or
indirectly have any interest, and to sell, convey and transfer the Trust
Property to any such corporation, trust,association or organization in exchange
for the Shares or securities thereof or otherwise, and to lend money to,
subscribe for the Shares or securities of, and enter into any contracts with
any such corporation, trust, partnership, association or organization, or any
corporation, partnership, trust, association or organization in which the Trust
holds or is about to acquire shares or any other interest. The Trustees may also
cause a merger or consolidation between the Trust or any successor thereto and
any such corporation, trust, partnership, association or other organization if
and to the extent permitted by law,as provided under the law then in effect.
Nothing contained herein shall be construed as requiring approval of
Shareholders for the Trustees to organize or assist in organizing one or more
corporations, trusts, partnerships, associations or other organizations and
selling, conveying or transferring a portion of the Trust Property to such
organizations or entities.


                                       46


<PAGE>


  ARTICLE XII Miscellaneous


       12.1. Filing.This Declaration and any amendment hereto shall be filed in
the office of the Secretary of the Commonwealth of Massachusetts and in such
other places as may be required under the laws of Massachusetts and may also be
filed or recorded in such other places as the Trustees deem appropriate. Each
amendment so filed shall be accompanied by a certificate signed and acknowleged
by a Trustee stating that such action was duly taken in a manner provided
herein, and unless such amendment or such certificate sets forth some later time
for the effectiveness of such amendment, such amendment shall be effective upon
its filing.  A restated Declaration, containing the original Declaration and all
amendments theretofore made, may be executed from time to time by a majority of
the Trustees and shall, upon filing with the Secretary of the Commonwealth of
Massachusetts, be conclusive evidence of all amendments contained therein and
may thereafter be referred to in lieu of the original Declaration and the
various amendments thereto.


       12.2.  Resident Agent.   The Trust shall maintain a resident agent in the
Commonwealth of Massachusetts, which agent shall initially be CT Corporation
System, 10 Post Office Square, Boston, Massachusetts 02109.The Trustees may
designate a successor resident agent, provided, however, that such appointment
shall not become effective until written notice thereof is delivered to the
office of the Secretary of the Commonwealth.


       12.3.  Governing Law. This Declaration is executed by the Trustees and
delivered in the Commonwealth of Massachusetts and with reference to the laws
thereof, and the rights of all parties and the validity and construction of
every provision hereof shall be subject to and construed according to the laws
of said State and reference shall be specifically made to the business
corporation law of the Commonwealth of Massachusetts as to the construction of
matters not specifically covered herein or as to which an ambiguity exists.


                                       47


<PAGE>


       12. 4.  Counterparts.  This Declaration may be simultaneously executed in
several counterparts, each of which shall be deemed to be an original, and such
counterparts, together, shall constitute one and the same instrument, which
shall be sufficiently evidenced by any such original counterpart.


       12. 5.  Reliance by Third Parties. Any certificate executed by an indi-
vidual who,according to the records of the Trust, or of any recording office in
which this Declaration may be recorded, appears to be a Trustee hereunder,
certifying to: (a) the number or identity of Trustees or Shareholders, (b) the
name of the Trust or any Series thereof,(c) the establishment of any Series, (d)
the due authorization of the execution of any instrument or writing,(e) the form
of any vote passed at a meeting of Trustees or Shareholders, (f) the fact that
the number of Trustees or Shareholders present at any meeting or executing any
written instrument satisfies the requirements of this Declaration, (g) the form
of any By-Laws adopted by or the identity of any officers elected by the


Trustees, or (h) the existence of any fact or facts which in any manner relate
to the affairs of the Trust or any Series, shall be conclusive evidence as to
the matters so certified in favor of any person dealing with the Trustees and
their successors.


       12.6. Provisions in Conflict With Law Or Regulations.

             (a)  The provisions of this Declaration are severable, and if the
Trustees shall determine, with the advice of counsel, that any of such provi-
sions is in conflict with 1940 Act, the regulated investment company provisions
of the Internal Revenue Code or with other applicable laws and regulations, the
conflicting provision shall be deemed never to have constituted a part of this
Declaration; provided, however, 


                                       48


<PAGE>


that such determination shall not affect any of the remaining provisions of this
Declaration or render invalid or improper any action taken or omitted prior to
such determination.


            (b) If any provision of this Declaration shall be held invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall
attach only to such provision in such jurisdiction and shall not in any manner
affect such provision in any other jurisdiction or any other provision of this
Declaration in any jurisdiction.


       IN WITNESS WHEREOF, the undersigned have caused these presents to be
executed as of the day and year first above written.


                                       49



                                                                Exhibit 1(b)


                      MERRILL LYNCH MUNICIPAL SERIES TRUST

                          Establishment and Designation
                                       of
                       Merrill Lynch Municipal Income Fund


         The undersigned, being a majority of the Trustees of Merrill Lynch
Municipal Series Trust, a Massachusetts business trust (the "Trust"), acting
pursuant to Section 6.2 of the Declaration of Trust, dated August 14, 1986 (the
"Declaration") of the Trust, do hereby divide the shares of beneficial interest
of the Trust, par value $.10 per share ("Shares"), to create a separate Series,
within the meaning of said Section 6.2, as follows:



 1. The Series is designated the "Merrill Lynch
    Municipal Income Fund" (referred to herein as
    the "Fund").
 
 2. Shares of the Fund shall be entitled to all of
    the rights and preferences accorded to Shares
    under the Declaration.
 
 3.  The purchase price of Shares of the Fund, the
    method of determination of net asset value of
    the Fund, the price, terms and manner of
    redemption of Shares of the Fund, and the
    relative dividend rights of holders of Shares
    of the Fund shall be established by the
    Trustees of the Trust in accordance with the
    provisions of the Declaration and shall be set
    forth in the currently effective prospectus
    relating to shares of the Fund, as amended from
    time to time, under the Securities Act of 1933,
    as amended.



      IN WITNESS WHEREOF, the undersigned have signed this
instrument with duplicate original counterparts and have caused a duplicate
original to be lodged among the records of the Trust
this 2nd day of October, 1986.



<PAGE>


                      MERRILL LYNCH MUNICIPAL SERIES TRUST

                          Establishment and Designation
                                       of
                       Merrill Lynch Municipal Income Fund


      The undersigned, being a majority of the Trustees of Merrill Lynch
Municipal Series Trust, a Massachusetts business trust (the "Trust") , acting
pursuant to Section 6.2 of the Declaration of Trust, dated August 14, 1986 (the
"Declaration") of the Trust, do hereby divide the shares of beneficial interest
of the Trust, par value $.10 per share ("Shares"), to create a separate Series,
within the meaning of said Section 6.2, as follows:


 1. The Series is designated the "Merrill Lynch
    Municipal Income Fund" (referred to herein as
    the "Fund").
 
 2. Shares of the Fund shall be entitled to all of
    the rights and preferences accorded to Shares'
    under the Declaration.
 
 3.  The purchase price of Shares of the Fund, the
     method of determination of net asset value of
     the Fund, the price, terms and manner of
     redemption of Shares of the Fund, and the
     relative dividend rights of holders of Shares
     of the Fund shall be established by the
     Trustees of the Trust in accordance with the
     provisions of the Declaration and shall be set
     forth in the currently effective prospectus
     relating to shares of the Fund, as amended from
     time to time, under the Securities Act of 1933,
     as amended.


      IN WITNESS WHEREOF, the undersigned have signed this
instrument with duplicate original counterparts and have caused a duplicate
original to be lodged among the records of the   Trust
this 2nd day of October, 1986.


                                        2


<PAGE>


 Richard R. West                         Marc A. White
 Berrill Farms                           1050 Hyland Road
 RFD Greensboro Road                     Ithaca, NY 14850
 Lebanon, NH 03766


      The Declaration of Trust establishing Merrill Lynch
 Municipal Series Trust, dated August 14, 1986, a copy of which,
 together with all amendments thereto (the "Declaration"), is on
 file in the office of the Secretary of the Commonwealth of
 Massachusetts, provides that the name "Merrill Lynch Municipal
 Series Trust" refers to the Trustees under the Declaration
 collectively as Trustees, but not as individuals or personally;
 and no Trustee, shareholder, officer, employee or agent of
 Merrill Lynch Municipal Series Trust shall be held to any
 personal liability, nor shall resort be had to their private
 property for the satisfaction of any obligation or claim or
 otherwise in connection with the affairs of said Trust but the
 Trust Estate only shall be liable.


                                        3


<PAGE>


 Richard R. West                        Marc A. White
 Berrill Farms                          1050 Highland Road
 RFD Greensboro Road                    Ithaca, NY
 Lebanon, NH 03766                      14850


      The Declaration of Trust establishing Merrill Lynch
 Municipal Series Trust, dated August 14, 1986, a copy of which,
 together with all amendments thereto (the "Declaration"), is on
 file in the office of the Secretary of the Commonwealth of
 Massachusetts, provides that the name "Merrill Lynch Municipal
 Series Trust" refers to the Trustees under the Declaration
 collectively as Trustees, but not as individuals or personally;
 and no Trustee, shareholder, officer, employee or agent of
 Merrill Lynch Municipal Series Trust shall be held to any
 personal liability, nor shall resort be had to their private
 property for the satisfaction of any obligation or claim or
 otherwise in connection with the affairs of said Trust but the
 Trust Estate only shall be liable.


                                        4


                                                                 Exhibit 1.(c)

                    MERRILL LYNCH MUNICIPAL SERIES TRUST


        The undersigned, constituting a majority of the Trustees of Merrill
Lynch Municipal Series Trust (the "Trust"), a Massachusetts business trust,
hereby certify that the Trustees of the Trust have duly adopted the following
amendment, as approved by a majority of the shareholders of the Trust, to the
Declaration of Trust, as amended, of the Trust, dated the 14th day of August,
1986 (the "Declaration").


 VOTED:   Section 1.2 of Article I of the Declaration be, and it   hereby is,
          amended in its entirety to read as follows:


     1.2 Definitions.  As used in this Declaration, the following terms shall
have the following meanings:

      The terms "Affiliated Person",, "Assignment", "Commission",, "Interested
Person",, "Majority Shareholder Vote" (the 67% or more than 50% requirement of
the third sentence of Section 2(a)(42) of the 1940 Act, whichever may be
applicable) and "Principal Underwriter" shall have the meanings given them in
the 1940 Act.

      "Declaration" shall mean this Declaration as amended from time to time. 
References in this Declaration to "Declaration", "hereof", "herein" and
"hereunder" shall be deemed to refer to the Declaration rather than the article
or section in which such words appear.

      "Fundamental Policies" shall mean the investment restrictions set forth in
the Prospectus of any Series and designated as fundamental policies therein.
 
      "Person" shall mean and include individuals, corporations, partnerships,
trusts, associations, joint ventures and other entities, whether or not legal
entities, and governments and agencies and political subdivisions thereof.
   
      "Prospectus" shall mean the currently effective Prospectus of any Series
of the Trust under the Securities Act of 1933, as amended, including the
Statement of Additional Information incorporated by reference therein.

      "Series" shall mean the separate series that may be established and
designated pursuant to Section 6.2.


<PAGE>


 
      "Shareholders" shall mean as of any particular time all holders of record
of outstanding Shares at such time.
 
      "Shares" shall mean the equal proportionate transferable units of interest
into which the beneficial interest in any Series the Trust shall be divided from
time to time and includes fractions of Shares as well as whole Shares.  As
provided in Article VI hereof, a Series of the Trust may issue separate classes
of Shares; all references to Shares shall be deemed to be Shares of any or all
Series or a single class of a Series or all classes of a Series as the context
may require.

      "Trustees" shall mean the signatories to this
Declaration, so long as they shall continue in office in accordance with the
terms hereof, and all other persons who at the time in question have been duly
elected or appointed and have qualified as trustees in accordance with the
provisions hereof and are then in office, are herein referred to as the
"Trustees", and reference in this Declaration to a Trustee or Trustees shall
refer to such person or persons in their capacity as Trustees hereunder.

      "Trust Property" shall mean as of any particular time any and all
property, real or personal, tangible or intangible, which at such time is owned
or held by or for the account of the Trust, any Series thereof or the Trustees.

     The "1940 Act" refers to the Investment Company Act of 1940, as amended
from time to time, and shall include the rules and regulations and any relevant
order of exemption promulgated thereunder by the Securities and Exchange
Commission.
 

 VOTED:   That Section 6.2 of Article VI of the Declaration be, and it hereby
          is, amended in its entirety to read as follows:
 

      6.2. Series Designation.  The Trustees, in their discretion from time to
time, may authorize the division of Shares into two or more Series, each Series
relating to a separate portfolio of investments.  The different Series shall be
established and designated, and the variations in the relative rights and
preferences as between the different Series shall be fixed and determined, by
the Trustees; provided that all Shares shall be identical except that there may
be variations between different Series as to purchase price, determination of
net asset value, the price, terms and manner of redemption, special and relative
rights as to


                                        2


<PAGE>


dividends and on liquidation, conversion rights, and conditions under which the
several Series shall have separate voting rights.  All references to Shares in
this Declaration shall be deemed to be shares of any or all Series as the
context may require.


     The Trustees, in their discretion  without a vote of the Shareholders, may
divide the shares of beneficial interest of any Series into classes.  In such
event, each class of a Series shall represent interests in the Trust Property of
a Series and have identical voting, dividend, liquidation and other rights and
the same terms and conditions except that expenses related directly or
indirectly to the distribution of the Shares of a class of a Series may be borne
solely by such class (as shall be determined by the Trustees) and, as provided
in Section 10.1, a class of a Series may have exclusive voting rights with
respect to matters relating to the expenses being borne solely by such class. 
The bearing of such expenses solely by a class of Shares of a Series shall be
appropriately reflected (in the manner determined by the Trustees) in the net
asset value, dividend and liquidation rights of the Shares of such class of a
Series. The division of the Shares of a Series into classes and the terms and
conditions pursuant to which the Shares of the classes of a Series will be
issued must be made in compliance with the 1940 Act.  No division of Shares of a
Series into classes shall result in the creation of a class of Shares having a
preference as to dividends or distributions or a preference in the event of any
liquidation, termination or winding up of the Trust.
 
     If the Trustees shall divide the Shares into two or more Series, the
following provisions shall be applicable:


      (a) The number of Shares of each Series and of each class of a Series that
may be issued shall be unlimited.  The Trustees may classify or reclassify any
unissued Shares or any Shares previously issued and required of any Series into
one or more Series that may be established and designated from time to time. 
The Trustees may hold as treasury Shares (of the same or some other Series),
reissue for such consideration and on such terms as they may determine, or
cancel any Shares of any Series required by the Trust at their discretion from
time to time.


      (b) The power of the Trustees to invest and reinvest
the Trust Property of each Series that may be established shall be governed by
Section 3.2 of this Declaration.

 


                                        3


<PAGE>


      (c) All consideration received by the Trust for the issue or sale of
Shares of a particular Series, together with all assets in which such
consideration is invested or reinvested, all income, earnings, profits, and
proceeds


                                        4


<PAGE>


thereof, including any proceeds derived from the sale, exchange or liquidation
of such assets, and any funds or payments derived from any reinvestment of such
proceeds in whatever form the same may be, shall irrevocably belong to that
Series for all purposes, subject only to the rights of creditors, and shall be
so recorded upon the books of account of the Trust.  In the event that there are
any assets, income, earnings, profits, and proceeds thereof, funds, or payments
which are not readily identifiable as belonging to any particular Series, the
Trustees shall allocate them among any one or more of the Series established and
designated from time to time in such manner and on such basis as they, in their
sole discretion, deem fair and equitable.  Each such allocation by the Trustees
shall be conclusive and binding upon the shareholders of all Series for all
purposes.


      (d) The assets belonging to each particular  Series shall be charged with
the liabilities of the Trust in respect of that Series only and all expenses,
costs, charges and reserves attributable to that Series and shall not be charged
with the liabilities, expenses, costs, charges and reserves attributable to
other Series, and any general liabilities, expenses, costs, charges or reserves
of the Trust which are not readily identifiable as belonging to any particular
Series shall be allocated and charged by the Trustees to and among any one or
more of the Series established and designated from time to time in such manner
and on such basis as the Trustees in their sole discretion deem fair and
equitable.  Each allocation of liabilities, expenses, costs, charges and
reserves by the Trustees shall be conclusive and binding upon the holders of all
Series for all purposes.  The Trustees shall have full discretion, to the extent
not inconsistent with the 1940 Act, to determine which items shall be treated as
income and which items as capital; and each such determination and allocation
shall be conclusive and binding upon the Shareholders.


      (e) The power of the Trustees to pay dividends and make distributions with
respect to any one or more Series shall be governed by Section 9.2 of this
Declaration.  Dividends and distributions on Shares of a particular Series may
be paid with such frequency as the Trustees may determine, to the holders of
Shares of that Series, from such of the income and capital gains, accrued or
realized, from the assets belonging to that Series, as the Trustees may
determine, after providing for actual and accrued liabilities belonging to that
Series.  All dividends and distributions on Shares of a particular Series shall
be distributed pro rata to the


                                        5


<PAGE>


holders of that Series in proportion to the number of Shares of that Series held
by such holders at the date and time of record established for the payment of
such dividends or distributions, except that such dividends and distributions


                                        6


<PAGE>


shall appropriately reflect expenses related directly or indirectly to the
distribution of Shares of a class of such Series.


     The establishment and designation of any Series of Shares shall be
effective upon the execution by a majority of the then Trustees of an instrument
setting forth the establishment and designation of such Series.  Such instrument
shall also set forth any rights and preferences of such series which are in
addition to the rights and preferences of Shares set forth in this Declaration. 
At any time that there are no Shares outstanding of any particular Series
previously established and designated, the Trustees may by an instrument
executed by a majority of their number abolish that Series and the establishment
and designation thereof.  Each instrument referred to in this paragraph shall
have the status of an amendment to this Declaration.


 VOTED:   That Sections 9.1, 9.2 and 9.4 of Article IX of the Declaration be,
          and they hereby are, amended in their
          entirety to read as follows:


      9.1. Net Asset Value.  The net asset value of each outstanding Share of
each Series of the Trust shall be determined at such time or times on such days
as the Trustees may determine, in accordance with the 1940 Act, with respect to
each Series.  The method of determination of net asset value of Shares of each
class of a Series shall be determined by the Trustees and shall be as set forth
in the Prospectus with respect to the applicable Series with any expenses being
borne solely by a class of Shares being reflected in the net asset value of such
Shares.  The power and duty to make the daily calculations for any Series may be
delegated by the Trustees to the adviser, administrator, manager, custodian,
transfer agent or such other person as the Trustees may determine.  The Trustee
may suspend the daily determination of net asset value to the extent permitted
by the 1940 Act.


      9.2. Distributions to Shareholders.  The Trustees shall from time to time
distribute ratably among the Shareholders of any Series such proportion of the
net profits, surplus (including paid-in-surplus), capital, or assets with
respect to such Series held by the Trustees as they deem proper with any
expenses being borne solely by a class of Shares of any


                                        7


<PAGE>


Series being reflected in the net profits or other assets being distributed to
such class.  Such distribution may be made in cash or property (including
without limitation any type of obligations of the Trust or any assets thereof),
and the Trustees may distribute ratably among the Shareholders of any Series
additional Shares of such Series issuable hereunder in such manner, at such
times,, and on such terms as the Trustees may deem proper.  Such distributions
may be among the Shareholders of record at the time of declaring a distribution
or among the Shareholders of record at such later date as the Trustees shall
determine.  The Trustees may always retain from the net profits such amount as
they may deem necessary to pay the debts or expenses of the Trust or to meet
obligations of the Trust, or as they deem desirable to use in the conduct of its
affairs or to retain for future requirements or extensions of the business.  The
Trustees may adopt and offer to Shareholders of any series such dividend
reinvestment plans, cash dividend payout plans or related plans as the Trustees
shall deem appropriate for such Series.


      Inasmuch as the computation of net income and gains for Federal income tax
purposes may vary from the computation thereof on the books, the above
provisions shall be interpreted to give the Trustees the power in their
discretion to distribute for any fiscal year as ordinary dividends and as
capital gains distributions, respectively, additional amounts sufficient to
enable the Trust to avoid or reduce liability for taxes.


      9.4. Power to Modify Foregoing Procedures. Notwithstanding any of the
foregoing provisions of this Article IX, the Trustees may prescribe, in their
absolute discretion, such other bases and times for determining the per share
net asset value of the Trust's Shares or net income, or the declaration and
payment of dividends and distributions as they deem necessary or desirable or to
enable the Trust to comply with any provision of the 1940 Act, including any
rule or regulation adopted pursuant to Section 22 of the 1940 Act by the
Commission or any securities association registered under the Securities
Exchange Act of 1934, all as in effect now or hereafter amended or modified.


 VOTED:   That Sections 10.1 and 10.2 of Article X of the Declaration be, and
          they hereby are, amended in their entirety to read as follows:


                                        8


<PAGE>


      10.1. Voting Powers.  The Shareholders shall have power to vote (i) for
the removal of Trustees as provided in Section 2.2; (ii) with respect to any
advisory or management contract of a Series as provided in Section 4.1; (iii)
with respect to the amendment of this Declaration as provided in Section 11.3;
(iv) with respect to such additional matters relating to the Trust as may be
required or authorized by the 1940 Act, the laws of the Commonwealth of
Massachusetts or other applicable law or by this Declaration or the By-Laws of
the Trust; and (v) with respect to such additional matters relating to the Trust
as may be properly submitted for Shareholder approval.  If the Shares of a
Series shall be          divided into classes as provided in Article VI hereof,
the Shares of each class shall have identical voting rights except that the
Trustees, in their discretion, may provide a class of a series with exclusive
voting rights with respect to matters related to expenses being borne solely by
such class.


      10.2. Meetings of Shareholders.  Special meetings of the Shareholders may
be called at any time by a majority of the Trustees and shall be called by any
Trustee upon written request of Shareholders of any Series holding in the
aggregate not less than 10% of the outstanding Shares of such Series having
voting rights, such request specifying the purpose or purposes for which such
meeting is to be called. Any such meeting shall be held within or without the
Commonwealth of Massachusetts on such day and at such time as the Trustees shall
designate.  The holders of one-third of the outstanding Shares of each Series
present in person or by proxy shall constitute a quorum for the transaction of
any business, except as may otherwise be required by the 1940 Act, the laws of
the Commonwealth of Massachusetts or other applicable law or by this Declaration
or the By-Laws of the Trust.  If a quorum is present at a meeting of a
particular Series, the affirmative vote of a majority of the Shares of each
Series represented at the meeting constitutes the action of the Shareholders,
unless the 1940 Act, the laws of the Commonwealth of Massachusetts or other
applicable law, the Declaration or by the By-Laws of the Trust requires a
greater number of affirmative votes.  If the Shares of any Series shall be
divided into classes  with a class having exclusive voting rights with respect
to  certain matters, the aforesaid quorum and voting requirements with respect
to action to be taken by the Shareholders of the class of such Series on such
matters shall be applicable only to the Shares of such class.


                                        9


<PAGE>


 VOTED:   That Section 11.2 of Article XI of the Declaration be, and it hereby
          is, amended in its entirety to read as follows:


      11.2. Termination.

      (a) The Trust may be terminated by the affirmative vote of the holders of
not less than two-thirds of the Shares of each Series of the Trust at any
meeting of Shareholders or by an instrument in writing, without a meeting,
signed by a majority of the Trustees and consented to by the holders of not less
than two-thirds of such Shares.  Any Series may be so terminated by vote or
written consent of not less than two-thirds of the Shares of such Series.  Upon
the termination of the Trust or any Series,


                                       10


<PAGE>


      (i)   The Trust or such Series shall carry on no
 business except for the purpose of winding up its affairs.


     (ii) The Trustees shall proceed to wind up the
affairs of the Trust or such Series and all of the powers of the Trustees under
this Declaration shall continue until the affairs of the Trust or such Series
shall have been wound up, including the power to fulfill or discharge the
contracts of the Trust or such Series, collect its assets, sell, convey, assign,
exchange, transfer or otherwise dispose of all or any part of the remaining
Trust Property to one or more persons at public or private sale for
consideration which may consist in whole or in part of cash, securities or other
property of any kind, discharge or pay its liabilities, and do all other acts
appropriate to liquidate its business; provided that any sale, conveyance,
assignment, exchange, transfer or other disposition of all or substantially all
the Trust Property shall require approval of the principal terms of the
transaction and the nature and amount of the consideration by vote or consent of
the holders of a majority of the Shares entitled to vote.


    (iii) After paying or adequately providing for the payment of all
liabilities, and upon receipt of such releases, indemnities and  refunding
agreements, as they deem necessary for their protection, the Trustees may
distribute the remaining Trust Property of any Series, in cash or in kind or
partly each, among the Shareholders of such Series and each class of such
Series, according to their respective rights taking into account the proper
allocation of expenses being borne solely by any Series or any class of Shares
of a Series.


      (b) After termination of the Trust or a Series and distribution to the
Shareholders as herein provided, a majority of the Trustees shall execute and
lodge among the records of the Trust an instrument in writing setting forth the
fact of such termination.  Upon termination of the Trust, the Trustees shall
thereupon be discharged from all further liabilities and duties hereunder, and
the rights and interests of all Shareholders shall thereupon cease.  Upon
termination of any Series, the Trustees shall thereupon be discharged from all
further liabilities and duties with


                                       11


<PAGE>


respect to such Series, and the rights and interests of all Shareholders of
such Series shall thereupon cease.


      IN WITNESS WHEREOF, the undersigned, constituting a majority of the
Trustees, have signed this certificate in duplicate original counterparts and
have caused a duplicate original to be lodged among the records of the Trust as
required by Article XI, Section 11.3(c) of the Declaration of Trust as of the
3rd day of October,  1988.


 Howard Colgan
 448D,Bromley Place
 Wyckoff, New Jersey 07481


 Ronald W. Forbes
 58 Euclid Avenue
 Delmar, New York 12054


 Thomas H. Lenagh
 One Brookside Drive
 Westport, Connecticut 06880


 Richard R. West
 29 Washington Square West
 New York, New York 10011


 Marc A. White
 1050 Highland Road
 Ithaca, New York 14850


 Arthur Zeikel
 279 Watchung Fork
 Westfield, New Jersey 07090


                                       12


                                                                Exhibit 1(d)

                      MERRILL LYNCH MUNICIPAL SERIES TRUST

                          Establishment and Designation

                                        of

                      Class A Shares and Class B Shares of
                           Beneficial Interest of the
                         Series Designated Merrill Lynch
                       Municipal Income Fund of the Trust


      The undersigned, being a majority of the Trustees of Merrill Lynch
Municipal Series Trust, a Massachusetts business trust (the "Trust"), acting
pursuant to Section 6.2 of the Declaration of Trust, as amended, dated August
14, 1986 (the "Declaration") of the Trust, do hereby divide the shares of
beneficial interest of the Series designated "Merrill Lynch Municipal Income
Fund" (the "Fund") of the Trust, par value $.IO per share ("Shares"), to create
two classes of Shares, within the meaning of said Section 6.2, as follows:
 
 1.  The two classes of Shares are designated "Class A Shares"
     and "Class B Shares."
  
 2.  Class A Shares and Class B Shares shall be entitled to    
     all of the rights and preferences accorded to Shares under
     the Declaration.
  
 3.  The purchase price of Class A Shares and Class B Shares,
     the method of determination of net asset value of Class A
     Shares and Class B Shares, the price, terms and manner of
     redemption of Class A Shares and Class B Shares, and the
     relative dividend rights of holders of Class A Shares and
     Class B Shares shall be established by the Trustees of
     the Trust in accordance with the provisions of the
     Declaration and shall be set forth in the currently
     effective prospectus and statement of additional
     information of the Trust relating to the Fund, as amended
     from time to time, under the Securities Act of 1933, as
     amended.


 4.  All Shares issued prior to the filing of this instrument with the
     Commonwealth of Massachusetts shall be deemed Class B Shares.

     IN WITNESS WHEREOF, the undersigned, have signed this instrument in
duplicate original counterparts and have caused a duplicate   original,to be
lodged among the records of the Trust this 3rd day of October, 1988.


<PAGE>


 Howard 0. Colgan
 448D, Bromley Place
 Wyckoff, New Jersey 07481


 Richard R. West
 29 Washington Square West
 New York, New York 10011


 Ronald V. Forbes                   Marc A. White
 58 Euclid Avenue                   1050 Highland Road
 Delmar, New York  12054            Ithaca, New York 14850


 Thomas H. Lenagh                   Arthur Zeikel
 one Brookside Drive                279 Watchung Fork
 Westport, Connecticut 06880        Westfield, New Jersey 07090


      The Declaration of Trust establishing Merrill Lynch Municipal Series
Trust, dated August 14, 1986, a copy of which, together with all amendments
thereto (the "Declaration"), is on file in the office of the Secretary of the
Commonwealth of Massachusetts, provides that the name "Merrill Lynch Municipal
Series Trust" refers to the Trustees under the Declaration collectively as
Trustees, but not as individuals or personally; and no Trustee, shareholder,
officer, employee or agent of Merrill Lynch Municipal Series Trust shall be held
to any personal liability, nor shall resort be had to their private property for
the satisfaction of any obligation or claim or otherwise in connection with the
affairs of said Trust but the Trust Property only shall be liable.


                                        2


                                                                Exhibit 1(f)


                      MERRILL LYNCH MUNICIPAL SERIES TRUST

                           Certification Of Amendment
                             To Declaration Of Trust
                                       and
                    Establishment and Designation of Classes


     The undersigned, constituting a majority of the Trustees of Merrill Lynch

Municipal Series Trust (the "Trust"), a Massachusetts business trust, hereby

certify that the Trustees of the Trust have duly adopted the following

amendments, as approved by a majority of the shareholders of the Trust, to the

Trust's   Declaration of Trust.

VOTED:    That the second paragraph of Section 6.2 of Article VI of the
          Declaration of Trust be, and it hereby is, amended by adding the
          following:

The Trustees may provide that shares of a class will be exchanged for shares of
another class without any act or deed on the part of the holder of shares of the
class being exchanged, whether or not shares of such class are issued and
outstanding, all on terms and conditions as the Trustees may specify.  The
Trustees may redesignate a class or series of shares of beneficial interest or a
portion of a class or series of shares of beneficial interest whether or not
shares of such class or series are issued and outstanding, provided that such
redesignation does not substantially adversely affect the preference, conversion
or other rights, voting powers, restrictions, limitations as to dividends,
qualifications or terms or conditions of redemption of such issued and
outstanding shares of beneficial interest.

VOTED:    That Section 6.3 of Article VI of the Declaration of Trust be, and it
          hereby is, amended in its entirety to read as follows:

     6.3.  Rights of Shareholders.  The ownership of the Trust Property of every
           ----------------------
description and the right to conduct any business hereinbefore described are
vested exclusively in the Trustees, and the Shareholders shall have no interest
therein other than the beneficial interest conferred by their Shares with
respect to a particular Series, and they shall have no right to call for any
partition or division of any property, profits, rights or interests of the Trust
nor can they be called upon to 


<PAGE>


share or assume any losses of the Trust or suffer an assessment of any kind by
virtue of their ownership of Shares.  The Shares  shall be personal property
giving only the rights in this Declaration specifically set forth.  The Shares
shall not entitle the holder to preference, preemptive, appraisal, conversion or
exchange rights (except for rights of appraisal specified in Section 11.4 and
except as may be specified by the Trustees in connection with the division of
shares into classes or the redesignation of classes or portions of classes in
accordance with Section 6.2).

VOTED:    That Section 10.1 of Article X of the Declaration of Trust be, and it
          hereby is, amended in its entirety to read as follows:

     10.1.  Voting Powers.  The Shareholders shall have power to vote (i) for
            -------------
the removal of Trustees as provided in Section 2.2; (ii) with respect to any
advisory or management contract of a Series as provided in Section 4.1; (iii)
with respect to the amendment of this Declaration as provided in Section 11.3;
(iv) with respect to such additional matters relating to the Trust as may be
required or authorized by the 1940 Act, the laws of the Commonwealth of
Massachusetts or other applicable law or by this Declaration or the By-Laws of
the Trust; and (v) with respect to such additional matters relating to the Trust
as may be properly submitted for Shareholder approval.  If the Shares of a
Series shall be divided into classes as provided in Article VI hereof, the
Shares of each class shall have identical voting rights except that the
Trustees, in their discretion, may provide a class of a Series with exclusive
voting rights with respect to matters related to expenses being borne solely by
such class whether or not shares of such class are issued and outstanding.


                                        2


<PAGE>


     The undersigned, being a majority of the Trustees of the Trust, acting
pursuant to Section 6.2 of the Declaration of Trust, do hereby divide the shares
of beneficial interest of each series of the Trust to create four classes of
shares, within the meaning of said Section 6.2, as follows:


     1.   The four classes of shares are designated "Class A Shares," "Class B
          Shares," "Class C Shares," and "Class D Shares."

     2.   Class A Shares, Class B Shares, Class C Shares and Class D Shares
          shall be entitled to all of the rights and preferences accorded to
          Shares under the Declaration of Trust.

     3.   The purchase price, the method of determination of net asset value,
          the price, terms and manner of redemption and the relative dividend
          rights of holders of Class A Shares, Class B Shares, Class C Shares
          and Class D Shares shall be established by the Trustees of the Trust
          in accordance with the provisions of the Declaration of Trust and
          shall be set forth in the currently effective prospectus and statement
          of additional information of the Trust relating to each series of the
          Trust, as amended from time to time, contained in the Trust's
          registration statement under the Securities Act of 1933, as amended. 

     4.   Class A Shares, Class B Shares, Class C Shares and Class D Shares
          shall vote together as a single class except that shares of a class
          may vote separately on matters affecting only that class and shares of
          a class not affected by a matter will not vote on that matter.

     5.   A class of shares of any series of the Trust may be terminated by the
          Trustees by written notice to the Shareholders of the class.


                                        3


<PAGE>


     IN WITNESS WHEREOF, the undersigned, constituting a majority of the

Trustees, have signed this certificate in duplicate original counterparts and

have caused a duplicate original to be lodged among the records of the Trust as

required by Article XI, Section 11.3(c) of the Declaration of Trust as of 17th

day of October, 1994.


_______________________                 ________________________
Ronald W. Forbes                        Cynthia A. Montgomery
58 Euclid Avenue                        200 Clifton Street
Delmar, NY 12054                        Belmont, MA 02178


________________________                _________________________
Charles C.  Reilly                      Kevin A. Ryan
9 Hampton Harbor Road                   127 Commonwealth Avenue
Hampton Bays, NY 11946                  Chestnut Hill, MA 02167


_______________________                 ________________________
Richard R.  West                        Arthur Zeikel
482 Tepi Drive                          300 Woodland Avenue
Southbury, CT 06488                     Westfield, NJ 07090


     The Declaration of Trust establishing Merrill Lynch Municipal Series Trust,
dated August 14, 1986, a copy of which, together with all amendments thereto
(the "Declaration"), is on file in the office of the Secretary of the
Commonwealth of Massachusetts, provides that the name of the Trust, "Merrill
Lynch Municipal Series Trust," refers to the Trustees under the Declaration
collectively as Trustees, but not as individuals or personally; and no Trustee,
shareholder, officer, employee or agent of Merrill Lynch Municipal Series Trust
shall be held to any personal liability, nor shall resort be had to their
private property for the satisfaction of any obligation or claim or otherwise in
connection with the affairs of said Trust but the "Trust Property" only shall be
liable.


                                        4



                                                                Exhibit 10


                                  BROWN & WOOD

                             One World Trade Center
                            New York, N.Y. 10048-0557

                             Telephone: 212-839-5300
                             Facsimile: 212-839-5599


                                             February 27, 1995


Merrill Lynch Municipal Intermediate Term Fund of
     Merrill Lynch Municipal Series Trust
P.O. Box 9011
Princeton, New Jersey 08543-9011

Dear Sirs:

     This opinion is furnished in connection with the registration by Merrill
Lynch Municipal Series Trust, a Massachusetts business trust (the "Trust"), of
1,643,159 shares of beneficial interest, par value $0.10 per share (the 
"Shares"), of the Merrill Lynch Municipal Intermediate Term Fund, a series of 
the Trust, under the Securities Act of 1933 pursuant to a registration statement
on Form N-1A (File No. 33-8058), as amended (the "Registration Statement").

     As counsel for the Trust, we are familiar with the proceedings taken by it
in connection with the authorization, issuance and sale of the Shares. In
addition, we have examined and are familiar with the Declaration of Trust of the
Trust, as amended, the By-Laws of the Trust and such other documents as we have
deemed relevant to the matters referred to in this opinion.

     Based upon the foregoing, we are of the opinion that the Shares, upon
issuance and sale in the manner referred to in the Registration Statement for
consideration not less than the par value thereof, will be legally issued, fully
paid and nonassessable shares of beneficial interest, except that shareholders
of the Trust may under certain circumstances be held personally liable for the
Trust's obligations.

     In rendering this opinion, we have relied as to matters of Massachusetts
law upon an opinion of Bingham, Dana & Gould rendered to the Trust.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the use of our name in the Prospectus and
Statement of Additional Information constituting parts thereof.


                                        Very truly yours,
                                         Brown & Wood


                                                                      EXHIBIT 11
   
INDEPENDENT AUDITORS' CONSENT
 
Merrill Lynch Municipal Intermediate Term Fund of
Merrill Lynch Municipal Series Trust:
 
We consent to the use in Post-Effective Amendment No. 12 to Registration
Statement No. 33-8058 of our report dated December 5, 1994 appearing in the
Statement of Additional Information, which is a part of such Registration
Statement, and to the reference to us under the caption "Financial Highlights"
appearing in the Prospectus, which also is a part of such Registration
Statement.
    
 
   
DELOITTE & TOUCHE LLP
Princeton, New Jersey
February 24, 1995
    






                                  EXHIBIT 16(c)

Municipal Intermediate Term - Class C
10/21/94 - 10/31/94

                                             Since       Since
                                           Inception   Inception
                                          Avg Annual     Total
                                             Return      Return *
                                           ---------   ---------

Initial Investment                        $1,000.00   $1,000.00

Divided by Net Asset Value                     9.70        9.70
                                          ---------    --------

Equals Shares Purchased                      103.09      103.09

Plus Shares Acquired through
Dividend Reinvestment                          0.02        0.02
                                          ---------    --------

Equals Shares Held at 10/31/94               103.11      103.11

Multiplied by Net Asset Value
at 10/31/94                                    9.63        9.63
                                           --------    --------

Equals Ending Value before deduction
for contingent deferred sales charge         992.92      992.92

Less deferred sales charge                   (9.93)        0.00
                                           --------    --------

Equals Ending Redeemable Value at
$1000 Investment (ERV) at 10/31/94          $982.99     $992.92
                                           --------    --------

Divided by $1,000 (P)                        0.9830      0.9929

Subtract 1                                  -0.0170     -0.0071

Expressed as a percentage equals the
Aggregate Total Return for the period (T)    -1.70%
                                            -------
                                            -------

Expressed as a percentage equals the
Aggregate Total Return for the period                    -0.71%
                                                        -------
                                                        -------

ERV divided by P                             0.9830

Raise to the power of                       36.5000

Equals                                       0.5346

Subtract 1                                  -0.4654

Expressed as a percentage equals the
Average Annualized Total Return             -46.54%
                                            -------
                                            -------

* Does not include sales charge for the period.





                                  EXHIBIT 16(d)

Municipal Intermediate Term - Class D
10/21/94 - 10/31/94

                                             Since       Since
                                           Inception   Inception
                                          Avg Annual     Total
                                             Return      Return *
                                           ---------   ---------

Initial Investment                        $1,000.00   $1,000.00

Divided by Initial Maximum
Offering Price                                 9.80
                                          ---------

Divided by Net Asset Value                                 9.70
                                                       --------

Equals Shares Purchased                      102.06      103.09

Plus Shares Acquired through
Dividend Reinvestment                          0.01        1.34
                                          ---------    --------

Equals Shares Held at 10/31/94               102.08      103.11

Multiplied by Net Asset Value
at 10/31/94                                    9.63        9.63
                                           --------    --------

Equals Ending Redeemable Value at
$1000 Investment (ERV) at 10/31/94          $983.00     $992.92


Divided by $1,000 (P)                        0.9830      0.9929

Subtract 1                                  -0.0170     -0.0071

Expressed as a percentage equals the
Aggregate Total Return for the period (T)    -1.70%
                                            -------
                                            -------

Expressed as a percentage equals the
Aggregate Total Return for the period                    -0.71%
                                                        -------
                                                        -------

ERV divided by P                             0.9830

Raise to the power of                       36.5000

Equals                                       0.5347

Subtract 1                                  -0.4653

Expressed as a percentage equals the
Average Annualized Total Return             -46.53%
                                            -------
                                            -------


* Does not include sales charge for the period.



<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 1
   <NAME> MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND CLASS A SHARES
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          OCT-31-1994
<PERIOD-START>                             NOV-01-1993
<PERIOD-END>                               OCT-31-1994
<INVESTMENTS-AT-COST>                      175,466,813
<INVESTMENTS-AT-VALUE>                     170,046,021
<RECEIVABLES>                                5,950,410
<ASSETS-OTHER>                                 199,867
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             176,196,298
<PAYABLE-FOR-SECURITIES>                     4,908,338
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,412,325
<TOTAL-LIABILITIES>                          6,320,663
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,909,405
<SHARES-COMMON-STOCK>                        2,874,765
<SHARES-COMMON-PRIOR>                        2,325,803
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     9,612,978
<ACCUM-APPREC-OR-DEPREC>                   (5,420,792)
<NET-ASSETS>                                27,652,527
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           10,798,795
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,844,091
<NET-INVESTMENT-INCOME>                      8,954,704
<REALIZED-GAINS-CURRENT>                     1,875,751
<APPREC-INCREASE-CURRENT>                 (15,766,315)
<NET-CHANGE-FROM-OPS>                      (4,935,860)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    1,583,774
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,950,875
<NUMBER-OF-SHARES-REDEEMED>                  1,486,841
<SHARES-REINVESTED>                             84,928
<NET-CHANGE-IN-ASSETS>                    (12,358,820)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                  11,488,729
<GROSS-ADVISORY-FEES>                          999,575
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,844,091
<AVERAGE-NET-ASSETS>                        30,526,308
<PER-SHARE-NAV-BEGIN>                            10.39
<PER-SHARE-NII>                                    .52
<PER-SHARE-GAIN-APPREC>                          (.77)
<PER-SHARE-DIVIDEND>                               .52
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.62
<EXPENSE-RATIO>                                    .76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 2
   <NAME> MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND CLASS B SHARES
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          OCT-31-1994
<PERIOD-START>                             NOV-01-1993
<PERIOD-END>                               OCT-31-1994
<INVESTMENTS-AT-COST>                      175,466,813
<INVESTMENTS-AT-VALUE>                     170,046,021
<RECEIVABLES>                                5,950,410
<ASSETS-OTHER>                                 199,867
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             176,196,298
<PAYABLE-FOR-SECURITIES>                     4,908,338
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,412,325
<TOTAL-LIABILITIES>                          6,320,663
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,909,405
<SHARES-COMMON-STOCK>                       14,779,964
<SHARES-COMMON-PRIOR>                       15,210,242
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     9,612,978
<ACCUM-APPREC-OR-DEPREC>                   (5,420,792)
<NET-ASSETS>                               142,152,159
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           10,798,795
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,844,091
<NET-INVESTMENT-INCOME>                      8,954,704
<REALIZED-GAINS-CURRENT>                     1,875,751
<APPREC-INCREASE-CURRENT>                 (15,766,315)
<NET-CHANGE-FROM-OPS>                      (4,935,860)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    7,370,849
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      4,312,670
<NUMBER-OF-SHARES-REDEEMED>                  5,098,388
<SHARES-REINVESTED>                            355,440
<NET-CHANGE-IN-ASSETS>                    (12,358,820)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                  11,488,729
<GROSS-ADVISORY-FEES>                          999,575
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,844,091
<AVERAGE-NET-ASSETS>                       151,213,391
<PER-SHARE-NAV-BEGIN>                            10.39
<PER-SHARE-NII>                                    .49
<PER-SHARE-GAIN-APPREC>                          (.77)
<PER-SHARE-DIVIDEND>                               .49
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.62
<EXPENSE-RATIO>                                   1.07
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 3
   <NAME> MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND CLASS C SHARES
       
<S>                             <C>
<PERIOD-TYPE>                   OTHER
<FISCAL-YEAR-END>                          OCT-31-1994
<PERIOD-START>                             OCT-21-1994
<PERIOD-END>                               OCT-31-1994
<INVESTMENTS-AT-COST>                      175,466,813
<INVESTMENTS-AT-VALUE>                     170,046,021
<RECEIVABLES>                                5,950,410
<ASSETS-OTHER>                                 199,867
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             176,196,298
<PAYABLE-FOR-SECURITIES>                     4,908,338
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,412,325
<TOTAL-LIABILITIES>                          6,320,663
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   184,909,405
<SHARES-COMMON-STOCK>                              110
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                     9,612,978
<ACCUM-APPREC-OR-DEPREC>                   (5,420,792)
<NET-ASSETS>                                     1,058
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           10,798,795
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,844,091
<NET-INVESTMENT-INCOME>                      8,954,704
<REALIZED-GAINS-CURRENT>                     1,875,751
<APPREC-INCREASE-CURRENT>                 (15,766,315)
<NET-CHANGE-FROM-OPS>                      (4,935,860)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            1
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            110
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                    (12,358,820)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          999,575
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,844,091
<AVERAGE-NET-ASSETS>                               965
<PER-SHARE-NAV-BEGIN>                             9.70
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                          (.08)
<PER-SHARE-DIVIDEND>                               .01
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.62
<EXPENSE-RATIO>                                   1.18
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 4
   <NAME> MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM FUND CLASS D SHARES
       
<S>                             <C>
<PERIOD-TYPE>                   OTHER
<FISCAL-YEAR-END>                          OCT-31-1994
<PERIOD-START>                             OCT-21-1994
<PERIOD-END>                               OCT-31-1994
<INVESTMENTS-AT-COST>                      175,466,813
<INVESTMENTS-AT-VALUE>                     170,046,021
<RECEIVABLES>                                5,950,410
<ASSETS-OTHER>                                 199,867
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             176,196,298
<PAYABLE-FOR-SECURITIES>                     4,908,338
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