EATON VANCE MUNICIPAL BOND FUND L P
497, 1995-04-03
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<PAGE>

                  EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND
                     EATON VANCE MUNICIPAL BOND FUND L.P.
                 SUPPLEMENT TO PROSPECTUSES DATED MAY 1, 1994

    Effective  August 1, 1994,  Eaton Vance  Municipal  Bond Fund L.P.  does not
permit the exchange  privilege to be used for "Market  Timing" and may terminate
the exchange  privilege  for any  shareholder  account  engaged in Market Timing
activity.  Any shareholder account for which more than two round-trip  exchanges
are made within any twelve  month  period will be deemed to be engaged in Market
Timing.  Furthermore,  a group of  unrelated  accounts for which  exchanges  are
entered  contemporaneously by a financial  intermediary will be considered to be
engaged in Market Timing.

    THE FOLLOWING SENTENCE IS ADDED TO "HOW TO BUY SHARES OF THE FUND FOR CASH":

        Fund  shares may be sold at net asset  value  where the amount  invested
        represents  redemption  proceeds  from a mutual fund  unaffiliated  with
        Eaton Vance,  if the  redemption  occurred no more than 60 days prior to
        the  purchase of Fund shares and the  redeemed  shares were subject to a
        sales charge.

    IN ADDITION,  THE FOLLOWING  CHANGES (1-5) APPLY TO FUND SHARES PURCHASED ON
OR AFTER MARCH 27, 1995:

    1. THE SHAREHOLDER  TRANSACTION  EXPENSES TABLE UNDER  "SHAREHOLDER AND FUND
EXPENSES" IS REPLACED BY THE FOLLOWING TABLE:

      SHAREHOLDER TRANSACTION EXPENSES
        Maximum Sales Charge Imposed on Purchases
          (as a percentage of offering price)                              3.75%
        Sales Charges Imposed on Reinvested Distributions                   None
        Redemption Fees                                                     None
        Fees to Exchange Shares                                             None
        Contingent Deferred Sales Charges Imposed on Redemptions            None

        Based on the  Shareholder  Transaction  Expenses  shown above and on the
    total operating expenses shown in the relevant Prospectus, an investor would
    pay  expenses  $10 less than the expenses for one year and three years shown
    in the Example under "Shareholder and Fund Expenses".

    2. FOR EV TRADITIONAL  GOVERNMENT  OBLIGATIONS FUND, THE $100,000 AMOUNTS IN
THE  DESCRIPTIONS  OF THE STATEMENT OF INTENTION  AND THE RIGHT OF  ACCUMULATION
UNDER "EATON VANCE  SHAREHOLDER  SERVICES" ARE REPLACED BY $50,000 AMOUNTS,  AND
THE FIRST  SENTENCE IN THE  DESCRIPTION OF THE EXCHANGE  PRIVILEGE  UNDER "EATON
VANCE SHAREHOLDER SERVICES" IS REPLACED BY THE FOLLOWING SENTENCE:

        Shares of the Fund may  currently be exchanged  for shares of any of the
        following  funds:  Eaton Vance Cash Management  Fund, Eaton Vance Income
        Fund of Boston,  Eaton Vance  Municipal Bond Fund L.P.,  Eaton Vance Tax
        Free Reserves and any fund in the Eaton Vance Traditional Group of Funds
        on the basis of the net  asset  value per share of each fund at the time
        of the exchange (plus, in the case of an exchange made within six months
        of the date of  purchase,  an amount  equal to the  difference,  if any,
        between the sales charge  previously  paid on the shares being exchanged
        and the sales charge payable on the shares being acquired).
<PAGE>
    3. FOR EATON VANCE  MUNICIPAL  BOND FUND L.P.,  THE $100,000  AMOUNTS IN THE
DESCRIPTIONS OF THE STATEMENT OF INTENTION AND THE RIGHT OF  ACCUMULATION  UNDER
"SERVICES FOR HOLDERS OF SHARES" ARE REPLACED BY $50,000 AMOUNTS,  AND THE FIRST
SENTENCE IN THE  DESCRIPTION  OF THE  EXCHANGE  PRIVILEGE  UNDER  "SERVICES  FOR
HOLDERS OF SHARES" IS REPLACED BY THE FOLLOWING SENTENCE:

        Shares of the Fund may  currently be exchanged  for shares of any of the
        following  funds:  Eaton Vance Cash Management  Fund, Eaton Vance Income
        Fund of Boston,  Eaton Vance Tax Free Reserves and any fund in the Eaton
        Vance Traditional Group of Funds on the basis of the net asset value per
        share of each fund at the time of the exchange  (plus, in the case of an
        exchange made within six months of the date of purchase, an amount equal
        to the difference,  if any, between the sales charge  previously paid on
        the shares being  exchanged  and the sales charge  payable on the shares
        being acquired).

    4. THE SALES  CHARGE TABLE UNDER "HOW TO BUY SHARES OF THE FUND FOR CASH" IS
REPLACED BY THE FOLLOWING TABLE:

        The current sales charges and dealer commissions are:

<TABLE>
<CAPTION>
                                       SALES CHARGE          SALES CHARGE        DEALER COMMISSION
                                     AS PERCENTAGE OF      AS PERCENTAGE OF      AS PERCENTAGE OF
  AMOUNT OF PURCHASE                  OFFERING PRICE       AMOUNT INVESTED        OFFERING PRICE
  <S>                                <C>                   <C>                   <C>
  Less than $50,000                       3.75%                 3.90%                  4.00%
  $50,000 but less than $100,000          2.75%                 2.83%                  3.00%
  $100,000 but less than $250,000         2.25%                 2.30%                  2.50%
  $250,000 but less than $500,000         1.75%                 1.78%                  2.00%
  $500,000 but less than
  $1,000,000                              1.25%                 1.27%                  1.50%
  $1,000,000 or more                      0.00%<F1>             0.00%<F1>              0.25%<F2>

<FN>
<F1> Fund shares  purchased  before March 27,  1995,  at net asset value with no
     initial sales charge by virtue of the purchase having been in the amount of
     $1 million or more may be subject to a  contingent  deferred  sales  charge
     upon redemption.
<F2> The Principal  Underwriter  may pay Authorized  Firms that initiate and are
     responsible  for  purchases of $1 million or more a commission at an annual
     rate of 0.25% of average daily net assets paid quarterly for one year.
</TABLE>

    5.  REFERENCES TO A CONTINGENT  DEFERRED SALES CHARGE OR "CDSC" DO NOT APPLY
TO FUND SHARES PURCHASED ON OR AFTER MARCH 27, 1995.

March 27, 1995                                                         T-5/1PS







<PAGE>
                     EATON VANCE MUNICIPAL BOND FUND L.P.

               A MUTUAL FUND SEEKING TO PROVIDE CURRENT INCOME
                    EXEMPT FROM REGULAR FEDERAL INCOME TAX

    This Prospectus is designed to provide you with  information you should know
before investing.  Please retain this document for future  reference.  Shares of
the Fund are not deposits or  obligations  of, or guaranteed or endorsed by, any
bank,  and  are  not  federally   insured  by  the  Federal  Deposit   Insurance
Corporation, the Federal Reserve Board or any other government agency. Shares of
the Fund  involve  investment  risks,  including  fluctuations  in value and the
possible loss of some or all of the principal investment.
    
    A Statement of Additional  Information  dated May 1, 1994,  as  supplemented
from time to time,  for the Fund has been filed with the Securities and Exchange
Commission and is incorporated herein by reference. This Statement of Additional
Information is available  without charge from the Fund's Principal  Underwriter,
Eaton Vance Distributors,  Inc., 24 Federal Street,  Boston, MA 02110 (telephone
(800) 225-6265).  The Fund's Investment Adviser is Eaton Vance Management at the
same address.

- --------------------------------------------------------------------------------
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.
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
TABLE OF CONTENTS
                                                    PAGE                                                  PAGE
<S>                                                 <C>   <S>                                               <C>
Shareholder and Fund Expenses .....................  2    The Fund's Investment Adviser is Eaton Vance ...  14
The Fund's Financial Highlights ...................  3    How the Fund Values its Shares .................  16
The Fund's Investment Objective ...................  3    How to Buy Shares of the Fund for Cash .........  17
How the Fund Invests Its Assets; Risks                    How to Acquire Fund Shares in Exchange for
  Associated with High Yield Investing ............  3      Securities ...................................  18
The Fund Has Authority to Hedge Against                   How to Redeem or Sell Shares ...................  19
  Changes in Interest Rates ....................... 10    The Lifetime Investing Account .................  22
Performance and Yield Information ................. 12    Services for Holders of Shares .................  23
Limited Partnership Form .......................... 13    Allocations, Distributions and Taxes ...........  25
Reports to Holders of Shares ...................... 14    Appendix .......................................  31
</TABLE>
- --------------------------------------------------------------------------------
                         PROSPECTUS DATED MAY 1, 1994
<PAGE>
SHAREHOLDER AND FUND EXPENSES
- --------------------------------------------------------------------------------
<TABLE>
SHAREHOLDER TRANSACTION EXPENSES
<S>                                                                                                     <C>  
  Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)                            4.75%
  Sales Charges Imposed on Reinvested Distributions                                                         None
  Redemption Fees                                                                                           None
  Fees to Exchange Shares                                                                                   None
  Contingent Deferred Sales Charges (on purchases over $1 million) Imposed on Redemptions               1.00%-0%
    During the First  Nineteen  Months (as a percentage of  redemption  proceeds
    exclusive of all reinvestments and capital appreciation in the account)<F1>

ANNUAL FUND OPERATING EXPENSES
(as a percentage of average net assets)
  Investment Adviser Fee                                                                                   0.50%
  Other Expenses                                                                                           0.22%
                                                                                                           ----
      Total Operating Expenses                                                                             0.72%
                                                                                                           ====
<CAPTION>
EXAMPLE                                                                   1 YEAR       3 YEARS      5 YEARS     10 YEARS
- -------                                                                   ------       -------      -------     --------
<S>                                                                       <C>          <C>          <C>         <C> 
You would pay the following expenses (including initial maximum sales 
charge) on a $1,000 investment, assuming (a) 5% annual return and (b)
redemption at the end of each time period:                                  $55          $69          $86         $133

Note:
  The  purpose  of the  above  table  and  Example  is to  assist  investors  in
  understanding  the various costs and expenses  that  investors in the Fund may
  bear  directly or  indirectly.  See "The Fund's  Financial  Highlights,"  "The
  Fund's Investment Adviser is Eaton Vance" and "How to Buy Shares of the Fund."
  The table and Example are based on the Fund's  fiscal year ended  December 31,
  1993. The table and Example should not be considered a representation  of past
  or future  expenses,  and  actual  expenses  may be greater or less than those
  shown in the table and Example.
<FN>
<F1> If shares  have been  purchased  at net asset  value with no initial  sales
     charge by virtue of the purchase having been in the amount of $1 million or
     more and are redeemed  within 18 months after the end of the calendar month
     in which the purchase was made,  a contingent  deferred  sales charge of 1%
     will be imposed on such redemption.  See "How to Buy Shares of the Fund for
     Cash",  "How to Redeem or Sell Fund  Shares" and "Eaton  Vance  Shareholder
     Services".
</TABLE>

<PAGE>

THE FUND'S FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
The  following  information  should be read in  conjunction  with the  financial
statements included in the Statement of Additional Information, all of which has
been so included in reliance  upon the report of Deloitte & Touche,  independent
certified public accountants, as experts in accounting and auditing.
<TABLE>
<CAPTION>
                                                                 YEAR ENDED DECEMBER 31,
                        -----------------------------------------------------------------------------------------------------------
                        1993<F1>      1992       1991       1990       1989       1988      1987      1986       1985       1984
                        -------       ----       ----       ----       ----       ----      ----      ----       ----       ----
<S>                     <C>         <C>         <C>        <C>        <C>        <C>       <C>       <C>        <C>        <C>    
NET ASSET VALUE,
  beginning of year .   $  9.950    $  9.750    $ 9.200    $ 9.250    $ 8.990    $ 8.590   $ 9.260   $ 8.420    $ 7.520    $ 7.520
                        --------    --------    -------    -------    -------    -------   -------   -------    -------    -------
INCOME FROM OPERATIONS:
    Net investment
      income ........   $  0.614    $  0.639    $ 0.638    $ 0.627    $ 0.632    $ 0.630   $ 0.655   $ 0.654    $ 0.678    $ 0.667
    Net realized and
      unrealized gain
      (loss) on
      investments ...      0.692       0.195      0.552     (0.017)     0.288      0.430   (0.665)     0.866      0.861      0.020
                        --------    --------    -------    -------    -------    -------   -------   -------    -------    -------
      Total income
        from
        operations ..   $  1.306    $  0.834    $ 1.190    $ 0.610    $ 0.920    $ 1.060   $ 0.000   $ 1.520    $ 1.539    $ 0.687
                        --------    --------    -------    -------    -------    -------   -------   -------    -------    -------
LESS DISTRIBUTIONS:
    From net
      investment
      income            $ (0.619)   $ (0.634)   $(0.638)   $(0.627)   $(0.660)   $(0.660)  $(0.660)  $(0.680)   $(0.639)   $(0.687)
    In excess of net
      investment income   (0.007)       --       (0.002)    (0.033)      --         --       --         --         --         --
                        --------    --------    -------    -------    -------    -------   -------   -------    -------    -------
      Total
        distributions   $ (0.626)   $ (0.634)   $(0.640)   $(0.660)   $(0.660)   $(0.660)  (0.660)   $(0.680)   $(0.639)   $(0.687)
                        --------    --------    -------    -------    -------    -------   -------   -------    -------    -------
NET ASSET VALUE, end                                                                       
  of year ...........   $ 10.630    $  9.950    $ 9.750    $ 9.200    $ 9.250    $ 8.990   $ 8.590   $ 9.260    $ 8.420    $ 7.520
                        ========    ========    =======    =======    =======    =======   =======   =======    =======    =======
  TOTAL RETURN ......     13.52%       8.91%     13.49%      6.97%     10.65%     12.83%   -0.03%     18.70%     21.33%      9.74%
RATIOS/SUPPLEMENTAL DATA:
    Net assets, end
      of year (000's                                                                         $51,771
      omitted) ......   $114,425    $103,208    $92,771    $80,907    $77,780    $63,385             $55,019    $32,026    $21,878
    Ratio of expenses
      to average net
      assets ........      0.72%       0.74%      0.76%      0.85%      0.92%      0.96%    0.82%      0.81%      0.88%      0.80%
    Ratio of net
      investment income
      to average net
      assets ........      5.91%       6.50%      6.75%      6.94%      6.87%      7.20%    7.44%      7.54%      8.69%      9.54%
PORTFOLIO TURNOVER ..        86%         60%       105%       187%       188%       139%     103%        33%        48%       166%
<FN>
- -----------
<F1> Further  information  regarding the performance of the Fund is contained in
     the Fund's  annual  report to  shareholders  which may be obtained  without
     charge  by  contacting  the  Fund's  Principal  Underwriter,   Eaton  Vance
     Distributors, Inc.
</TABLE>

<PAGE>

THE FUND'S INVESTMENT OBJECTIVE
- ------------------------------------------------------------------------------

THE FUND'S  INVESTMENT  OBJECTIVE  IS TO SEEK  CURRENT  INCOME  EXEMPT  FROM THE
REGULAR FEDERAL INCOME TAX.

THE INVESTMENT OBJECTIVE OF EATON VANCE MUNICIPAL BOND FUND L.P. (THE "FUND")
is to seek current income exempt from the regular Federal income tax. The Fund
is an open-end investment company which commenced its investment operations in
1977.

HOW THE FUND INVESTS ITS ASSETS;
RISKS ASSOCIATED WITH HIGH YIELD INVESTING
- ------------------------------------------------------------------------------

THE FUND NORMALLY INVESTS AT LEAST 80% OF ITS ASSETS IN MUNICIPAL OBLIGATIONS.

THE  INVESTMENT  OBJECTIVE OF THE FUND IS TO SEEK CURRENT INCOME EXEMPT FROM THE
REGULAR FEDERAL INCOME TAX. DURING PERIODS OF NORMAL MARKET  CONDITIONS THE FUND
WILL HAVE AT LEAST 80% OF ITS NET  ASSETS  INVESTED  IN  OBLIGATIONS,  INCLUDING
NOTES AND  TAX-EXEMPT  COMMERCIAL  PAPER,  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 INTEREST
ON WHICH IS EXEMPT FROM THE REGULAR FEDERAL INCOME TAX ("MUNICIPAL  BONDS"). The
investment  objective  and policy set forth in the  preceding  two sentences are
fundamental policies which may not be changed unless authorized by a vote of the
holders of the Fund's units of partnership interest ("Shares").

    During  periods of normal market  conditions the Fund  anticipates  that its
assets will be invested  primarily in (1) Municipal Bonds (other than tax-exempt
commercial  paper)  which are  rated at the time of  purchase  within  the three
highest grades assigned by Moody's Investors Service, Inc. ("Moody's") (Aaa, Aa,
or A, VMIG 1, VMIG 2 or VMIG 3 or, in the case of notes, MIG 1, MIG 2, or MIG 3)
or Standard & Poor's  Corporation  ("S&P")  and Fitch  Investors  Service,  Inc.
("Fitch") (AAA, AA or A), or which are guaranteed, backed or secured at the time
of purchase by the U.S.  Government or any of its agencies or  instrumentalities
or which  are  issued by  issuers  having  at the time of  purchase  an issue of
outstanding  Municipal  Bonds rated within the three highest grades  assigned by
Moody's or S&P or which have been discharged; or (2) tax-exempt commercial paper
which is rated at the time of  purchase  within the  highest  grade  assigned by
Moody's  (Prime-1) or S&P, (A-1),  or which is guaranteed,  backed or secured at
the  time  of  purchase  by the  U.S.  Government  or any  of  its  agencies  or
instrumentalities or which is issued by an issuer having at the time of purchase
an issue of outstanding  Municipal Bonds rated within the highest grade assigned
by either of the aforesaid rating services.

    The Fund may also  invest a portion of its assets in  Municipal  Bonds which
are either unrated or rated lower than the  applicable  grade referred to above,
and may hold temporary investments and other securities as described in the next
paragraph  and cash.  As a  general  proposition,  the Fund  does not  intend to
purchase obligations which, at the time of acquisition, are rated lower than Baa
by Moody's or BBB by S&P or Fitch,  although the Fund will, as indicated  above,
purchase unrated obligations.  Municipal obligations rated Baa by Moody's or BBB
by S&P or Fitch may have  speculative  characteristics,  and changes in economic
conditions or other circumstances are more likely to lead to a weakened capacity
to make  principal  and  interest  payments  than in the  case of  higher  rated
obligations.  The Fund may retain in its  portfolio an  obligation  whose rating
drops below Baa or BBB after its  acquisition  by the Fund, if such retention is
considered  desirable by the Fund's investment  adviser,  Eaton Vance Management
(the "Investment Adviser").  Unrated obligations are generally regarded as being
speculative  and expose the  investor  to risks  similar to those of lower rated
bonds.

    The Fund from time to time may make temporary  investments in obligations of
the U.S. Government,  its agencies, or instrumentalities;  other debt securities
rated  within  the  three  highest  grades  by the  aforesaid  rating  services;
commercial paper rated in the highest grade by such rating services  (Prime-1 or
A-1, respectively);  certificates of deposit of domestic banks with assets of $1
billion or more;  and  repurchase  agreements.  Interest  income from  temporary
investments  may be  taxable  to  holders  of Shares  as  ordinary  income.  See
"Allocations,  Distributions  and  Taxes." The Fund may also  acquire  rights to
resell  Municipal  Bonds or any of the  foregoing  temporary  investments  at an
agreed  upon  price  and at or  within  an  agreed  upon  time.  The  Fund  made
insubstantial  taxable  temporary  investments  during its last fiscal year, but
there is no assurance that it will continue to do so in the future.

    The policies set forth in the preceding three paragraphs are  nonfundamental
and may be changed without obtaining the approval of the holders of Shares.

    Municipal  Bonds are issued  for a wide  variety  of both  governmental  and
private undertakings.  In general, there are three categories of Municipal Bonds
the  interest  on which  is  exempt  from all  types  of  Federal  income  taxes
applicable to individuals:  (i) certain "public purpose"  obligations  (whenever
issued),   which  include   obligations  issued  directly  by  state  and  local
governments or their agencies to fulfill essential governmental functions;  (ii)
certain   obligations   issued   before  August  8,  1986  for  the  benefit  of
non-governmental persons or entities; and (iii) certain "private activity bonds"
issued after August 7, 1986 which include "qualified Section 501(c)(3) bonds" or
refundings  of certain  obligations  included in the second  category.  A fourth
category of Municipal  Bonds  consisting  of certain  "private  activity  bonds"
issued  after  August 7, 1986 is exempt  from the  regular  Federal  income  tax
applicable to individuals  (and  corporations),  but the interest earned on such
obligations  is  treated  as a tax  preference  item  which  could  subject  the
recipient to or increase his liability for the Federal  alternative minimum tax.
The Fund will treat all obligations included in the foregoing four categories as
tax-exempt  "Municipal  Bonds" for the  purpose of  complying  with the 80% test
described  above. It should be noted that interest on all municipal  obligations
(whenever issued) is included in "adjusted current earnings" for the purposes of
the alternative minimum tax applicable to corporations.

    The Fund  expects  that it will not invest more than 25% of its total assets
in Municipal  Bonds whose issuers are located in the same state or more than 25%
of its total assets in Municipal Bonds the security of which is derived from any
one of the following categories;  hospitals and health facilities; turnpikes and
toll roads;  ports and  airports;  or colleges  and  universities.  The Fund may
invest  more than 25% of its total  assets in  Municipal  Bonds the  security of
which  is  derived  from  any one or more  other  categories  including  without
limitation the following:  public housing  authorities;  general  obligations of
states and localities;  lease rental obligations of state and local authorities;
obligations of state and local housing finance authorities;  municipal utilities
systems; or industrial development and pollution control bonds. The policies set
forth in this paragraph are  nonfundamental and may be changed without obtaining
the approval of the holders of Shares.

    The Fund has adopted certain  fundamental  investment  limitations which are
enumerated in detail in the Statement of  Additional  Information  and which may
not be changed unless authorized by a vote of the holders of Shares. Among other
limitations,  the Fund may not purchase the securities (except securities issued
or   guaranteed   by  the   U.S.   Government   or  any  of  its   agencies   or
instrumentalities)  of any  issuer  if as a result  thereof  more than 5% of its
total assets would be invested in the  securities of such issuer having the same
security provisions (without regard to priority of lien); invest more than 5% of
its total assets in industrial  revenue bonds where the payment of principal and
interest is the responsibility of a company  (including  predecessors) with less
than three years  operating  history  unless such bonds are rated at the time of
purchase  within the three highest  grades  assigned by a nationally  recognized
rating  service;  or invest  more than 5% of its total  assets  (taken at market
value) in securities  with legal or contractual  restrictions  on resale (except
for repurchase agreements).

    The Fund may invest in municipal leases and  participations  therein.  These
are  obligations in the form of a lease or installment  purchase which is issued
by state and local governments to acquire equipment and facilities.  Income from
such  obligations is generally exempt from local and state taxes in the state of
issuance.  "Participations"  in such leases are undivided interests in a portion
of the total obligation.  Participations  entitle their holders to receive a pro
rata share of all payments under the lease. A trustee is usually responsible for
administering  the terms of the  participation  and enforcing the  participants'
rights in the underlying  lease.  Municipal  leases  frequently  involve special
risks not normally  associated with general obligation or revenue bonds.  Leases
and installment  purchase or conditional  sale contracts (which normally provide
for title to the leased asset to pass  eventually  to the  governmental  issuer)
have  evolved  as a means for  governmental  issuers  to  acquire  property  and
equipment without meeting the constitutional and statutory  requirements for the
issuance of debt. The  debt-issuance  limitations  are deemed to be inapplicable
because of the  inclusion  in many leases or  contracts  of  "non-appropriation"
clauses that  provide that the  governmental  issuer has no  obligation  to make
future  payments under the lease or contract  unless money is  appropriated  for
such purpose by the appropriate  legislative  body on a yearly or other periodic
basis.  Certain  municipal lease obligations may be deemed illiquid for purposes
of the Fund's 10% limitation on investments in illiquid  securities  while other
municipal  lease  obligations  owned  by  the  Fund  may  be  determined  by the
Investment Adviser, pursuant to guidelines adopted by the Trustees, to be liquid
securities for the purpose of such  limitation.  In determining the liquidity of
municipal lease  obligations,  the Investment Adviser will consider a variety of
factors including:  (1) the willingness of dealers to bid for the security;  (2)
the number of dealers  willing to purchase or sell the obligation and the number
of other  potential  buyers;  (3) the  frequency  of trades  and  quotes for the
obligation;  and (4) the nature of the  marketplace  trades.  In  addition,  the
Investment  Adviser will consider factors unique to particular lease obligations
affecting the marketability thereof. These include the general  creditworthiness
of the municipality,  the importance of the property covered by the lease to the
municipality,  and the likelihood that the  marketability of the obligation will
be maintained throughout the time the obligation is held by the Fund.

    The Fund may invest in zero coupon  bonds.  Such bonds are debt  obligations
which do not  require  the  periodic  payment  of  interest  and are issued at a
significant discount from face value. The discount approximates the total amount
of interest the bonds will accrue and compound over the period until maturity at
a rate of interest  reflecting  the market  rate of the  security at the time of
issuance.  Zero coupon bonds benefit the issuer by mitigating  its need for cash
to meet  debt  service,  but also  require a higher  rate of  return to  attract
investors who are willing to defer receipt of such cash.  Such bonds  experience
greater  volatility  in market value due to changes in interest  rates than debt
obligations which provide for regular payments of interest. The Fund will accrue
income on such bonds for tax and accounting purposes, as required.

    The Fund may  invest in various  types of  derivative  municipal  securities
whose  interest  rates  bear an inverse  relationship  to the  interest  rate on
another security or the value of an index ("inverse floaters").  Because changes
in the  interest  rate on the  other  security  or index  inversely  affect  the
residual  interest paid on the inverse floater,  the value of an inverse floater
is generally more volatile than that of a fixed rate bond. Inverse floaters have
interest rate  adjustment  formulas which  generally  reduce or, in the extreme,
eliminate the interest paid to the Fund when short-term interest rates rise, and
increase  the interest  paid to the Fund when  short-term  interest  rates fall.
Inverse  floaters have varying  degrees of  liquidity,  and the market for these
securities is new and relatively volatile. These securities tend to underperform
the market for fixed rate bonds in a rising interest rate environment,  but tend
to outperform the market for fixed bonds when interest rates decline.  Shifts in
the relationship  between short-term and long-term interest rates may alter this
tendency,  however.  In return for this volatility,  inverse floaters  typically
offer the  potential  for yields  exceeding  the yields  available on fixed rate
bonds with  comparable  credit quality and maturity.  These  securities  usually
permit the  investor  to convert  the  floating  rate to a fixed rate  (normally
adjusted  downward),  and this optional conversion feature may provide a partial
hedge against rising interest rates if exercised at an opportune time.

HIGH YIELD MUNICIPAL BONDS ENTAIL RELATIVELY GREATER INVESTMENT RISKS.

    SOME  MUNICIPAL  BONDS OFFERING THE CURRENT INCOME SOUGHT BY THE FUND ARE IN
THE LOWEST  INVESTMENT  GRADE (BAA OR BBB) AND LOWER  RATING  CATEGORIES  OR ARE
UNRATED.  Such higher  yielding  obligations are subject to greater credit risks
than  securities  in higher  rating  categories,  which risks  include,  without
limitation, the possibility of default by or bankruptcy of either the issuers of
such  obligations  or the  underlying  sources of funds for debt service of such
obligations.  In this  connection,  there  have been  recent  instances  of such
defaults or bankruptcies which were not foreseen by the financial and investment
communities.  The lowest  investment grade and lower rated and unrated Municipal
Bonds in which the Fund will invest  will have  speculative  characteristics  in
varying  degrees.  While such  obligations  may have some quality and protective
characteristics,   these  characteristics  can  be  expected  to  be  offset  or
outweighed by uncertainties or major risk exposures to adverse  conditions.  The
value of such obligations may be more susceptible to real and perceived  adverse
economic or industry  conditions  than is the case of higher quality bonds.  The
Fund is dependent on the Investment Adviser's judgment,  analysis and experience
in the evaluation of such obligations.  The Fund had approximately  21.8% of its
assets  invested in such  obligations  at December 31, 1993 (the end of its last
fiscal year), and approximately 23.8% of its assets invested in such obligations
at the date of this  prospectus.  See the Appendix to this prospectus on page 31
for asset  composition  information for the most recent fiscal year of the Fund.
In  evaluating  the  credit  quality of a  particular  issue,  whether  rated or
unrated,  the Investment  Adviser will normally take into  consideration,  among
other things, the financial resources of the issuer (or, as appropriate,  of the
underlying  source of funds  for debt  service),  its  sensitivity  to  economic
conditions and trends,  any operating  history of and the community  support for
the facility  financed by the issue, the ability of the issuer's  management and
regulatory  matters.  The Investment Adviser will attempt to reduce the risks of
investing in the lowest  investment grade or lower rated or unrated  obligations
through  active  portfolio  management,  diversification,  credit  analysis  and
attention to current  developments  and trends in the economy and the  financial
markets. The Fund will also take such action as it considers  appropriate in the
event of anticipated financial difficulties, default or bankruptcy of either the
issuer  of any such  obligation  or of the  underlying  source of funds for debt
service.  Such action may include  retaining the services of various persons and
firms  (including  affiliates of the Investment  Adviser) to evaluate or protect
any real estate,  facilities  or other assets  securing any such  obligation  or
acquired by the Fund as a result of any such event.  The Fund  anticipates  that
real estate  consulting and management  services may be required with respect to
properties   securing  various   municipal   obligations  in  its  portfolio  or
subsequently  acquired by the Fund. The Fund will incur additional  expenditures
in taking protective action with respect to portfolio obligations in default and
assets securing such obligations. The Fund may also purchase a variety of hybrid
and special types of municipal  obligations.  For example,  some municipal bonds
are  additionally  secured  by  insurance,  bank  credit  agreements,  or escrow
accounts. The credit quality of companies which provide such credit enhancements
will affect the value of those securities.  Insured obligations held by the Fund
will be insured as to their  scheduled  payment of principal and interest  under
either (i) an  insurance  policy  obtained by the issuer or  underwriter  of the
obligation  at the time of its  original  issuance or (ii) an  insurance  policy
obtained by the Fund or a third party  subsequent to the  obligation's  original
issuance (which may not be reflected in the obligation's market value). Although
the  insurance  feature  reduces  certain  financial  risks,  the  premiums  for
insurance  and the higher market price paid for insured  obligations  may reduce
the Fund's  current  yield.  Insurance  generally will be obtained from insurers
with a claims-paying  ability rated Aaa by Moody's or AAA by S&P or Fitch.  Such
insurance may provide that in the event of  non-payment of interest or principal
when due with respect to an insured obligation,  the insurer is not obligated to
make such payment until a specified time period has lapsed (which may be 30 days
or more  after it has  been  notified  by the Fund  that  such  non-payment  has
occurred).  The  insurance  does not  guarantee  the market value of the insured
obligations  or the net asset value of the Fund. The Fund may also acquire other
securities  issued in exchange for such obligations or issued in connection with
the  debt  restructuring  or  reorganization  of  the  issuers,  or  where  such
acquisition, in the judgment of the Investment Adviser, may enhance the value of
such  obligations or would  otherwise be consistent  with the Fund's  investment
policies.

    High yield Municipal Bonds are frequently traded in markets where the number
of potential  purchasers and sellers is limited.  There is no established resale
market for certain of the municipal obligations in which the Fund invests. These
considerations  may have the  effect of  restricting  the  availability  of such
obligations  for the Fund to purchase,  may affect the choice of securities sold
to meet  redemption  requests and may have the effect of limiting the ability of
the Fund to sell or dispose of such securities. Because the secondary market for
high  yield  municipal  obligations  may be less  liquid  than for high  quality
obligations,  judgment may play a greater role in the  valuation of certain high
yield  Municipal  Bonds in the Fund's  portfolio at certain times.  In addition,
adverse market or economic  conditions  could make it difficult at times for the
Fund to sell or dispose of certain high yield Municipal Bonds.

THE FUND'S NET ASSET VALUE AND YIELD WILL FLUCTUATE

    THE NET ASSET VALUE OF THE FUND WILL CHANGE IN RESPONSE TO  FLUCTUATIONS  IN
PREVAILING INTEREST RATES AND CHANGES IN THE VALUE OF ITS PORTFOLIO  SECURITIES.
When interest rates decline,  the value of securities already held in the Fund's
portfolio can be expected to rise.  Conversely,  when interest  rates rise,  the
value of  existing  portfolio  security  holdings  can be  expected  to decline.
Although the lowest investment grade and lower rated and unrated Municipal Bonds
in the Fund's portfolio may provide higher yields, they are subject to a greater
degree of market  fluctuation  and credit  risk than high  quality  obligations.
Furthermore,  the  tax-exempt  income  provided by the Fund will  fluctuate over
time. In addition,  the Fund invests in municipal obligations structured as zero
coupon bonds and inverse floater  obligations,  which securities tend to be more
speculative  and  subject  to  greater  fluctuations  in value due to changes in
interest rates than other tax-exempt bonds.

    It is expected that the Fund's portfolio will normally  contain  substantial
amounts  of  long-term  Municipal  Bonds with  maturities  of ten years or more,
because  such  long-term   obligations  generally  produce  higher  income  than
short-term  obligations.  Such  long-term  obligations  are more  susceptible to
market  fluctuations  resulting from changes in interest rates than shorter term
obligations. However, the average maturity of the Fund's portfolio may vary from
time to time depending on anticipated market conditions.

    THE  FUND  MAY  ENGAGE  IN  SHORT-TERM  TRADING.  Securities  may be sold in
anticipation  of a market  decline (a rise in interest  rates) or  purchased  in
anticipation  of a market rise (a decline in interest  rates) and later sold. In
addition, a security may be sold and another purchased at approximately the same
time to take advantage of what the Fund believes to be a temporary  disparity in
the normal yield relationship between the two securities.  Yield disparities may
occur for reasons not directly  related to the investment  quality of particular
issues or the general movement of interest rates, such as changes in the overall
demand  for or supply of  various  types of  Municipal  Bonds or  changes in the
investment objectives of investors. Such trading may be expected to increase the
Fund's portfolio turnover rate and the expenses incurred in connection with such
trading.

    THE FUND MAY PURCHASE SECURITIES ON A "WHEN-ISSUED"  BASIS, WHICH MEANS THAT
PAYMENT AND DELIVERY OCCUR ON A FUTURE  SETTLEMENT DATE. The price and yield are
generally fixed on the date of commitment to purchase. However, the market value
of the  securities  may  fluctuate  prior  to  delivery  and upon  delivery  the
securities  may be worth more or less than the Fund agreed to pay for them.  The
Fund will not accrue  income in respect of a when-issued  security  prior to its
stated delivery date. The Fund will maintain in a segregated  account sufficient
assets to cover its purchase obligations so long as such obligations continue.

THE FUND MAY EARN ADDITIONAL INCOME BY LENDING  PORTFOLIO  SECURITIES TO CERTAIN
INSTITUTIONS.

    The Fund may seek to increase its income by lending portfolio  securities to
broker-dealers  or  other  institutional  borrowers.  Under  present  regulatory
policies of the Securities and Exchange  Commission,  such loans are required to
be  secured  continuously  by  collateral  in  cash,  cash  equivalents  or U.S.
Government  securities held by the Fund's  custodian and maintained on a current
basis at an amount at least equal to the market value of the securities  loaned,
which will be marked to market  daily.  Cash  equivalents  include  short-  term
municipal  obligations as well as taxable  certificates  of deposit,  commercial
paper and other  short-term  money market  instruments.  The Fund would have the
right to call a loan and obtain the securities  loaned at any time on up to five
business days' notice. During the existence of a loan, the Fund will continue to
receive the  equivalent  of the  interest  paid by the issuer on the  securities
loaned  and will also  receive a fee,  or all or a portion  of the  interest  on
investment of the collateral,  if any. However, the Fund may pay lending fees to
such borrowers.  The Fund would not have the right to vote any securities having
voting  rights  during  the  existence  of the loan,  but would call the loan in
anticipation of an important vote to be taken among holders of the securities or
the giving or  withholding of their consent on a material  matter  affecting the
investment.  As with  other  extensions  of  credit  there are risks of delay in
recovery or even loss of rights in the securities  loaned if the borrower of the
securities  fails  financially.   However,  the  loans  will  be  made  only  to
organizations  deemed by the Fund's  management to be of good standing and when,
in the judgment of the Fund's management,  the consideration which can be earned
from securities loans of this type justifies the attendant risk. Income realized
by the Fund from securities loans will be taxable. If the management of the Fund
decides  to  make  securities  loans,  it is  intended  that  the  value  of the
securities loaned would not exceed 30% of the Fund's total assets.

THE FUND HAS AUTHORITY TO HEDGE AGAINST CHANGES IN INTEREST RATES
- --------------------------------------------------------------------------------

FUTURES  CONTRACTS  AND OPTIONS OF FUTURES MAY BE USED TO MANAGE  INTEREST  RATE
RISK.

TO HEDGE  AGAINST  CHANGES IN  INTEREST  RATES,  THE FUND HAS THE  AUTHORITY  TO
PURCHASE AND SELL  VARIOUS  KINDS OF FUTURES  CONTRACTS,  AND PURCHASE AND WRITE
CALL AND PUT OPTIONS ON ANY OF SUCH  FUTURES  CONTRACTS;  IT MAY ALSO ENTER INTO
CLOSING PURCHASE AND SALE TRANSACTIONS WITH RESPECT TO ANY OF SUCH CONTRACTS AND
OPTIONS.  The futures contracts may be based on various debt securities (such as
U.S. Government securities),  securities indices and other financial instruments
and indices.  The Fund would engage in futures and related options  transactions
only for bona fide hedging or non-hedging purposes as defined in or permitted by
regulations of the Commodity Futures Trading Commission. The Fund will engage in
such transactions for non-hedging purposes only in order to enhance total return
by using a futures position as a lower cost substitute for a securities position
that the Fund is otherwise authorized to enter into.

    The Fund may not  purchase  or sell  futures  contracts  or purchase or sell
related  options,   except  for  closing  purchase  or  sale  transactions,   if
immediately  thereafter  the sum of the amount of margin  deposits on the Fund's
outstanding  positions in futures and related options and the amount of premiums
paid for  outstanding  positions  in options on futures  would  exceed 5% of the
market value of the Fund's net assets;  provided,  however, that at least 80% of
the Fund's net assets will be invested in Municipal  Bonds.  These  transactions
involve  brokerage costs,  require margin deposits and, in the case of contracts
and  options  requiring  the Fund to  purchase  securities,  require the Fund to
segregate liquid high grade debt securities in an amount equal to the underlying
value of such contracts and options.

    In addition,  while transactions in futures contracts and options on futures
may reduce certain risks,  such  transactions  themselves  involve (1) liquidity
risk that  contractual  positions  cannot be easily  closed  out in the event of
market  changes,  (2)  correlation  risk that  changes  in the value of  hedging
positions  may  not  match  the  market  fluctuations   intended  to  be  hedged
(especially given that the only futures contracts  currently  available to hedge
municipal  obligations are futures on various U.S. Government  securities and on
municipal securities  indices),  (3) market risk that an incorrect prediction by
the Investment Adviser of interest rates may cause the Fund to perform less well
than if such positions had not been entered into, and (4) skills  different from
those needed to select portfolio securities.

    Income or gains realized on the Fund's  transactions  in futures and options
on futures generate taxable income. See "Allocations, Distributions and Taxes."

    THE FUND MAY INVEST IN FLOATING OR VARIABLE RATE INSTRUMENTS,  WHICH PROVIDE
FOR INTEREST RATE ADJUSTMENTS AT SPECIFIED  INTERVALS.  Rate adjustments on such
securities  are usually set at the issuer's  discretion,  in which case the Fund
would normally have the right to resell the security to the issuer or its agent.
Alternatively,  rate revisions may be determined in accordance with a prescribed
formula or other contractual procedure. The Fund may also acquire put options in
combination with the purchase of underlying securities or may separately acquire
put options that relate to  securities  held in the Fund's  portfolio.  Such put
options would give the Fund the right to require the issuer or some other person
to purchase the underlying security at an agreed upon price.

PERFORMANCE AND YIELD INFORMATION
- --------------------------------------------------------------------------------

FROM TIME TO TIME,  THE FUND MAY ADVERTISE ITS YIELD AND/OR AVERAGE ANNUAL TOTAL
RETURN.  The current  yield for the Fund will be  calculated by dividing the net
investment  income  per  share  during a recent  30 day  period  by the  maximum
offering  price  per  share  of the  Fund  on the  last  day of the  period  and
annualizing  the resulting  figure.  The Fund's  average  annual total return is
determined by multiplying a hypothetical initial purchase order of $1,000 by the
average  annual  compound  rate  of  return  (including  capital   appreciation/
depreciation,  and  dividends and  distributions  paid and  reinvested)  for the
stated  period and  annualizing  the result.  The  calculation  assumes that the
maximum sales charge is deducted from the initial $1,000 purchase order and that
all  dividends  and  distributions  are  reinvested  at net  asset  value on the
reinvestment  dates  during the  period.  The Fund may also  publish  annual and
cumulative total return figures from time to time.

    The Fund may also furnish total return  calculations based on investments at
various sales charge levels or at net asset value. Any performance data which is
based on the Fund's net asset value per share would be reduced if a sales charge
were taken into account.

    The Fund  may also  publish  its  distribution  rate  and/or  its  effective
distribution rate. The Fund's distribution rate is computed by dividing the most
recent  monthly  distribution  per  share  annualized,  by the  current  maximum
offering price per share. The Fund's effective  distribution rate is computed by
dividing the distribution  rate by 12 and reinvesting the resulting amount for a
full year on a monthly  basis.  The effective  distribution  rate will be higher
than the  distribution  rate  because of the  compounding  effect of the assumed
reinvestment.  Investors should note that the Fund's yield is calculated using a
standardized  formula the income  component of which is computed from the yields
to maturity  of all  obligations  in the Fund's  portfolio  based on  prescribed
methods (with all purchases and sales of securities  during such period included
in the income calculation on a settlement date basis),  whereas the distribution
rate is  based  on the  Fund's  last  monthly  distribution  which  tends  to be
relatively  stable  and may be more or less than the  amount  of net  investment
income  actually  earned  by  the  Fund  during  the  month  (see  "Allocations,
Distributions and Taxes").

    Investors should note that the investment results of the Fund will fluctuate
over time, and any  presentation of the Fund's current yield or total return for
any  prior  period  should  not be  considered  as a  representation  of what an
investment  may earn or what an  investor's  yield or total return may be in any
future period.

LIMITED PARTNERSHIP FORM
- --------------------------------------------------------------------------------

AS A LIMITED PARTNERSHIP, THE FUND OFFERS INVESTORS TAX ADVANTAGES WHICH ARE NOT
AVAILABLE IN OTHER MUNICIPAL BOND FUNDS.

THE FUND WAS  FORMED AS A  CALIFORNIA  LIMITED  PARTNERSHIP  IN 1977 IN ORDER TO
PROVIDE FOR ITS  PARTNERS  VARIOUS TAX  ADVANTAGES  WHICH ARE NOT  AVAILABLE  TO
INVESTORS IN FUNDS ORGANIZED AS CORPORATIONS OR TRUSTS.

    The Fund was  organized  in  partnership  form  rather than in the form of a
corporation or business trust, because:

        1. A  partnership  is not subject to Federal  income tax, and  therefore
    does not have to comply with the  restrictive  provisions of Subchapter M of
    the  Internal  Revenue  Code of 1986 (the "Code") to avoid tax at the entity
    level, as does an investment  company in corporate or trust form. Under 1987
    Federal  tax  legislation,  the Fund will be  treated as a  partnership  for
    Federal tax purposes until  December 31, 1997.  After that date the Fund may
    be taxed as a corporation for Federal tax purposes, and management will take
    appropriate  steps to avoid such tax, for  example,  by enabling the Fund to
    qualify as a regulated  investment  company under  Subchapter M of the Code.
    See "Allocations, Distributions and Taxes."

        2.  Partnerships are not normally subject to state income taxes, and the
    income of a partnership  is considered to be the income of the partners both
    in timing and in character.

        3. The  tax-exempt  character  of interest  income  which is exempt from
    regular  Federal  income tax is retained  when such income is  allocated  or
    distributed  to the  holders of Shares of a  partnership  regardless  of the
    percentage of its assets that is comprised of Municipal Bonds.

        4. A holder of Shares may deduct his allocable portion of Fund losses up
    to his adjusted basis for his partnership  interest in the Fund in computing
    his  Federal  income tax  liability  without  redeeming  any  Shares.  It is
    expected  that such losses will not  constitute  "passive  activity"  losses
    under the Code.

        5. On  redemption  of Shares the holder may receive  cash  distributions
    from the Fund in payment therefor without Federal income tax consequences so
    long as such cash redemption  proceeds do not exceed such holder's  adjusted
    basis of his  partnership  interest in the Fund.

    The Fund is not required to hold annual  meetings of the Partners,  and does
not intend to do so. The Fund may,  however,  hold  meetings of the Partners for
the  purpose of  electing  new  General  Partners,  approving  a new  investment
advisory  contract or  distribution  plan and, at the request of Partners owning
10% or more of the  Shares,  considering  the  removal of any  General  Partner.
Partners  of the Fund have the  voting,  approval,  consent  or  similar  rights
required  under the  Investment  Company  Act of 1940,  as  amended,  for voting
security  holders.  Partners have one vote for each Share held by them.  All new
General  Partners are subject to election by the Partners in accordance with the
Amended and Restated Agreement of Limited  Partnership of the Fund ("Partnership
Agreement").

    The General  Partners  are divided into two  classes:  the Director  General
Partners and the Advisor General  Partner.  Only individuals may act as Director
General  Partners and all individual  General  Partners act as Director  General
Partners.  Except as  otherwise  provided  under  the  terms of the  Partnership
Agreement,  the Director  General  Partners have complete and exclusive  control
over the management,  conduct and operation of the Fund's business.  The Advisor
General Partner  (currently Eaton Vance) as such is not permitted to participate
in the  management of the Fund except when engaged as investment  adviser of the
Fund.

    A  purchaser  of Shares is  subject  to and is  deemed to have  granted  and
executed a Power of Attorney in the form set forth in this prospectus and in the
Partnership Agreement. A purchaser, by the act of purchasing Shares of the Fund,
will be bound by the terms and provisions of the Partnership Agreement and Power
of  Attorney  even if he does  not  sign  any of such  documents.  The  Power of
Attorney  may be used by the General  Partners for various  purposes,  including
without  limitation to amend the Partnership  Agreement  without the approval or
vote of the Limited Partners.

    The  Statement  of  Additional  Information  contains  a copy of the  Fund's
Partnership  Agreement and a description  of the rights and  obligations  of the
Partners under the Partnership Agreement and applicable law.

REPORTS TO HOLDERS OF SHARES
- --------------------------------------------------------------------------------

THE FUND WILL ISSUE TO THE  HOLDERS  OF SHARES  SEMI-ANNUAL  AND ANNUAL  REPORTS
CONTAINING FINANCIAL STATEMENTS. Financial statements included in annual reports
are audited by the Fund's  independent  certified  public  accountants.  Shortly
after the end of each year,  the Fund will  furnish  all  holders of Shares with
information  which is  necessary  for  preparing  Federal  and state  income tax
returns.

THE FUND'S INVESTMENT ADVISER IS EATON VANCE
- --------------------------------------------------------------------------------

EATON VANCE, ACTING UNDER SUPERVISION OF THE DIRECTOR GENERAL PARTNERS,  MANAGES
THE FUND'S INVESTMENTS AND AFFAIRS.

THE FUND  ENGAGES  EATON  VANCE  MANAGEMENT  ("EATON  VANCE") AS ITS  INVESTMENT
ADVISER.  EATON VANCE,  ITS AFFILIATES AND ITS  PREDECESSOR  COMPANIES HAVE BEEN
MANAGING  ASSETS  OF  INDIVIDUALS  AND  INSTITUTIONS  SINCE  1924  AND  MANAGING
INVESTMENT COMPANIES SINCE 1931.

    Eaton Vance,  acting under the general  supervision of the Director  General
Partners of the Fund,  manages the Fund's  investments  and  affairs.  Under its
investment  advisory  contract  with the Fund,  Eaton  Vance  receives a monthly
advisory fee in an amount equal to the aggregate of

        (a) a daily asset based fee  computed by applying  the annual asset rate
    applicable to that portion of the total daily net assets in each Category as
    indicated below, plus

        (b) a daily  income based fee computed by applying the daily income rate
    applicable  to that portion of the total daily gross income  (which  portion
    shall bear the same  relationship  to the total gross  income on such day as
    that portion of the total daily net assets in the same Category bears to the
    total net assets on such day) in each Category as indicated below:

                                                         Annual         Daily
 Category      Daily Net Assets                        Asset Rate    Income Rate
 --------      ----------------                        ----------    -----------

   1      Up to $500 million .........................   0.300%         3.00%
   2      $500 million but less than $1 billion ......   0.275%         2.75%
   3      $1 billion but less than $1.5 billion ......   0.250%         2.50%
   4      $1.5 billion but less than $2 billion ......   0.225%         2.25%
   5      $2 billion but less than $3 billion ........   0.200%         2.00%
   6      $3 billion and over ........................   0.175%         1.75%

    On December 31, 1993 the Fund had net assets of $114,424,692.  The Fund paid
Eaton Vance advisory fees of $547,783 (equivalent to 0.50% of the Fund's average
daily net assets) for the fiscal year ended December 31, 1993.

    Eaton  Vance also  furnishes  for the use of the Fund  office  space and all
necessary  office   facilities,   equipment  and  personnel  for  servicing  the
investments of the Fund. The Fund is responsible for the payment of all expenses
other  than  those  expressly  stated to be  payable  by Eaton  Vance  under the
investment advisory contract.

    Municipal   obligations   are  normally   traded  on  a  net  basis  through
broker-dealers  and banks  acting for their own account.  Such firms  attempt to
profit  from such  transactions  by buying at the bid price and  selling  at the
higher asked price of the market, and the difference is customarily  referred to
as the spread. In selecting firms which will execute Fund portfolio transactions
Eaton Vance  judges their  professional  ability and quality of service and uses
its best efforts to obtain  execution at prices  which are  advantageous  to the
Fund and at reasonably  competitive  spreads.  Subject to the  foregoing,  Eaton
Vance may consider sales of shares of the Fund or of other investment  companies
sponsored  by Eaton  Vance  as a factor  in the  selection  of firms to  execute
portfolio transactions.

    Thomas J. Fetter has acted as the portfolio manager of the Fund since its
inception.  He has been a Vice  President of Eaton Vance since 1987 and became a
Vice President of BMR since its inception.

EATON VANCE OR ITS AFFILIATES ACT AS INVESTMENT ADVISER TO INVESTMENT  COMPANIES
AND VARIOUS INDIVIDUAL AND INSTITUTIONAL CLIENTS WITH ASSETS UNDER MANAGEMENT OF
OVER $16 BILLION. Eaton Vance is a wholly-owned subsidiary of Eaton Vance Corp.,
a holding  company.  Eaton Vance Corp.  through its subsidiaries and affiliates,
engages in investment management and marketing activities, fiduciary and banking
services,  oil  and gas  operations,  real  estate  investment,  consulting  and
management, and development of precious metals properties.

HOW THE FUND VALUES ITS SHARES
- --------------------------------------------------------------------------------

NET ASSET VALUE IS COMPUTED  DAILY AT THE CLOSE OF THE  EXCHANGE BY DIVIDING THE
VALUE OF THE FUND'S TOTAL ASSETS, LESS ITS LIABILITIES,  BY THE NUMBER OF SHARES
OUTSTANDING

THE FUND  VALUES ITS SHARES  ONCE ON EACH DAY THE NEW YORK STOCK  EXCHANGE  (THE
"EXCHANGE")  IS OPEN FOR  TRADING,  AS OF THE CLOSE OF  REGULAR  TRADING  ON THE
EXCHANGE.  The Fund's net asset value is  determined  by Investors  Bank & Trust
Company  ("IBT") (as agent for the Fund) as authorized  by the Director  General
Partners.  Net asset value is computed by dividing the value of the Fund's total
assets, less its liabilities,  by the number of Shares outstanding.  Inasmuch as
the market for municipal  obligations is a dealer market with no central trading
location  or  continuous  quotation  system,  it is not  feasible to obtain last
transaction  prices for most municipal  obligations in the Fund's  portfolio and
such obligations,  including those issued on a when-issued  basis, will normally
be valued on the basis of valuations furnished by a pricing service. The pricing
service uses information with respect to transactions in bonds,  quotations from
bond   dealers,   market   transactions   in  comparable   securities,   various
relationships  between  securities,  and yield to maturity in determining value.
Taxable  obligations for which price quotations are readily  available  normally
will be valued at the mean between the latest  available  bid and asked  prices.
Other assets are valued at fair market value using  methods  determined  in good
faith by the Director General Partners.

    The net asset  value so  determined  and the public  offering  prices  based
thereon are effective  for orders  received by certain  financial  service firms
("Authorized  Firms") prior to the price  determination  (which for this purpose
shall be deemed to have been  made as of the  close of  regular  trading  on the
Exchange -- normally 4:00 p.m. New York time) and communicated by the Authorized
Firm  to  the  Principal  Underwriter  prior  to  the  close  of  the  Principal
Underwriter's  business  day.  See "How to Buy  Shares  of the  Fund for  Cash".
Authorized  Firms  include  financial  service  firms  with  whom the  Principal
Underwriter  has  agreements.  It is the  Authorized  Firm's  responsibility  to
transmit  orders promptly to the Principal  Underwriter.  Eaton Vance Corp. owns
77.3% of the outstanding stock of IBT, the Fund's custodian.

  SHAREHOLDERS MAY DETERMINE THE VALUE OF THEIR INVESTMENT  BY  MULTIPLYING  THE
  NUMBER OF SHARES  OWNED AS SHOWN ON THE  LAST  CONFIRMATION  STATEMENT  BY THE
  CURRENT NET ASSET VALUE. SHAREHOLDERS WILL BE SENT CONFIRMATION  STATEMENTS AT
  LEAST QUARTERLY.

HOW TO BUY SHARES OF THE FUND FOR CASH
- --------------------------------------------------------------------------------

INVESTORS  MAY  PURCHASE  SHARES  OF THE FUND  THROUGH  AUTHORIZED  FIRMS AT THE
EFFECTIVE PUBLIC OFFERING PRICE, which price is based on the effective net asset
value per Share plus the  applicable  sales  charge.  The Fund  receives the net
asset value, while the sales charge is divided between the investor's  financial
service firm and Eaton Vance Distributors,  Inc. (the "Principal Underwriter" or
"EVD"), 24 Federal Street, Boston, MA 02110, a wholly-owned  subsidiary of Eaton
Vance. If you don't have an Authorized Firm, Eaton Vance can refer you to one.

    The sales  charge may vary  depending  on the size of the  purchase  and the
number  of  shares of Eaton  Vance  funds the  investor  may  already  own,  any
arrangement to purchase  additional  shares during a 13-month  period or special
purchase  programs.  Complete  details of how investors  may purchase  shares at
reduced sales charges under the Right of Accumulation, a Statement of Intention,
or various  employee  benefit plans are available from Authorized  Firms or from
the Principal Underwriter.

    The current sales charges are:
<TABLE>
<CAPTION>
                                                                     Sales Charge        Sales Charge     Dealer Discount
                                                                 as Percentage of    as Percentage of    as Percentage of
Amount of Investment                                              Amount Invested      Offering Price      Offering Price
<C>                                                                        <C>                 <C>                 <C> 
Less than $100,000 ..........................................              4.99%               4.75%               4.00%
$100,000 but less than $250,000 .............................              3.90                3.75                3.15
$250,000 but less than $500,000 .............................              2.83                2.75                2.30
$500,000 but less than $1,000,000 ...........................              2.04                2.00                1.70
$1,000,000 or more ..........................................                0<F1>                0<F1>               0<F2>

<FN>
- ---------
<F1> No sales  charge is payable at the time of  purchase on  investments  of $1
     million or more. A contingent  deferred sales charge ("CDSC") of 1% will be
     imposed on such  investments,  as described  below, in the event of certain
     redemption transactions within 18 months of purchase.
<F2> The Principal  Underwriter  may pay a commission  to  Authorized  Firms who
     initiate  and  are  responsible  for  purchases  of $1  million  or more as
     follows:  1.00%  on  sales  up to $2  million,  plus  0.80%  on the next $1
     million,  0.20% on the next $2  million  and  0.08% on the  excess  over $5
     million.
</TABLE>

    However, the Principal  Underwriter may allow, upon notice to all Authorized
Firms, discounts up to the full sales charge during the periods specified in the
notice.  During periods when the discount  includes the full sales charge,  such
Firms may be deemed to be underwriters as that term is defined in the Securities
Act of 1933.

    The  Principal  Underwriter  may,  from  time to time,  at its own  expense,
provide additional incentives to financial service firms which employ registered
representatives  who sell a minimum  dollar  amount of Shares  and/or  shares of
other funds distributed by the Principal  Underwriter.  In some instances,  such
additional  incentives  may be offered only to certain  financial  service firms
whose representatives are expected to sell significant amounts of shares.

    An initial  investment in the Fund must be at least $1,000.  Once an account
has been  established  the investor may send  investments  of $50 or more at any
time directly to the Fund's transfer agent as follows:  The Shareholder Services
Group, Inc., BOS725, P.O. Box 1559, Boston, MA 02104. The $1,000 minimum initial
investment is waived for Bank Draft Investing accounts, which may be established
with an investment of $50 or more. See "Eaton Vance Shareholder Services" below.

    Shares of the Fund may be sold at net asset  value to  current  and  retired
Directors  and Trustees of Eaton Vance  funds;  to officers  and  employees  and
clients of Eaton Vance and its  affiliates;  to registered  representatives  and
employees  of  Authorized  Firms;  and bank  employees  who refer  customers  to
registered representatives of Authorized Firms; and to such persons' spouses and
children under the age of 21 and their beneficial  accounts.  Shares may also be
issued at net asset value in connection with the merger of an investment company
with the Fund and to  investors  making  an  investment  as part of a fixed  fee
program  whereby an entity  unaffiliated  with the Investment  Adviser  provides
multiple investment services, such as management, brokerage and custody.

    The Fund may  suspend  the  offering of Shares at any time and may refuse an
order for the purchase of Shares.

  IF YOU DON'T HAVE AN AUTHORIZED FIRM, EATON VANCE CAN RECOMMEND ONE.

HOW TO ACQUIRE FUND SHARES IN EXCHANGE FOR SECURITIES
- --------------------------------------------------------------------------------

IN  EXCHANGING  SECURITIES  FOR FUND SHARES,  THE MINIMUM  AMOUNT OF  SECURITIES
ACCEPTABLE TO EATON VANCE IS $5,000. COMPLIANCE WITH CERTAIN OTHER CONDITIONS IS
ALSO REQUIRED TO MAKE AN EXCHANGE.

IBT, AS ESCROW AGENT,  WILL RECEIVE  SECURITIES  ACCEPTABLE  TO EATON VANCE,  AS
INVESTMENT  ADVISER,  IN  EXCHANGE  FOR FUND  SHARES  AT THE  APPLICABLE  PUBLIC
OFFERING  PRICE SHOWN UNDER THE HEADING "HOW TO BUY SHARES OF THE FUND FOR CASH"
IN THIS  PROSPECTUS.  The minimum value of  securities  or  securities  and cash
accepted for deposit is $5,000. Securities accepted will be sold by IBT as agent
for the  account  of their  owner on the day of their  receipt by IBT or as soon
thereafter  as possible.  The number of Fund shares to be issued in exchange for
securities  will be the  aggregate  proceeds  from the sale of such  securities,
divided  by the  applicable  public  offering  price  per  share on the day such
proceeds are received.  EATON VANCE WILL ABSORB ANY TRANSACTION  COSTS,  SUCH AS
COMMISSIONS ON THE SALE OF THE SECURITIES.

    Securities  determined to be acceptable should be transferred via book entry
or  physically  delivered,  in proper form for  transfer,  through an Authorized
Firm,  together with a completed and signed  Letter of  Transmittal  in approved
form (available from Authorized Firms), as follows:

       In the case of book entry:
            Deliver through Depository Trust Co.
            Broker #2212
            Investors Bank & Trust Company
            For A/C Eaton Vance Municipal Bond Fund L.P.

       In the case of physical delivery:
            Investors Bank & Trust Company
            Attention: Eaton Vance Municipal Bond Fund L.P.
            Physical Securities Processing Settlement Area
            89 South Street
            Boston, MA 02111

    Investors who are  contemplating an exchange of securities for shares of the
Fund, or their representatives,  are advised to contact Eaton Vance to determine
whether the securities are acceptable  before forwarding such securities to IBT.
Eaton Vance reserves the right to reject any securities.


  EXCHANGING  SECURITIES FOR FUND SHARES MAY CREATE A TAXABLE GAIN OR LOSS. EACH
  INVESTOR  SHOULD  CONSULT  HIS TAX  ADVISER  WITH  RESPECT  TO THE  PARTICULAR
  FEDERAL,  STATE AND LOCAL TAX  CONSEQUENCES OF EXCHANGING  SECURITIES FOR FUND
  SHARES.

HOW TO REDEEM OR SELL SHARES
- --------------------------------------------------------------------------------

SHARES MAY BE REDEEMED BY WRITING A CHECK OR BY MAIL.

BY MAIL:
A PARTNER MAY REDEEM HIS SHARES BY DELIVERING TO THE SHAREHOLDER SERVICES GROUP,
INC.,  BOS725,   P.O.  BOX  1559,  BOSTON,   MASSACHUSETTS   02104,  EITHER  THE
CERTIFICATES,  OR A STOCK POWER if no  certificates  have been  issued,  in good
order  for  transfer,   with  a  separate  written  request  for  redemption.The
redemption  price will be based on the net asset value next computed  after such
delivery.  Good  order  means  that the  certificates  or stock  powers  must be
endorsed by the record  owner(s)  exactly as the Shares are  registered  and the
signature(s)  must be guaranteed by a member of either the  Securities  Transfer
Association's STAMP program or the New York Stock Exchange's Medallion Signature
Program,  or  certain  banks,  savings  and loan  institutions,  credit  unions,
securities  dealers,  securities  exchanges,  clearing  agencies and  registered
securities  associations  as  required by a  regulation  of the  Securities  and
Exchange  Commission (the "Commission")  acceptable to The Shareholder  Services
Group, Inc. In addition, in some cases, good order may require the furnishing of
additional  documents  such as  where  shares  are  registered  in the name of a
corporation, partnership or fiduciary.

    Within seven days after receipt of a redemption  request by The  Shareholder
Services Group, Inc. in "good order", the Fund will make payment in cash for the
net asset value of the shares as of the date  determined  above,  reduced by the
amount of any Federal income tax required to be withheld.

    The right to redeem can be suspended and the payment of the redemption price
deferred  when the  Exchange  is closed  (other than for  customary  weekend and
holiday closings),  during periods when trading on the Exchange is restricted as
determined  by the  Commission,  or during any  emergency as  determined  by the
Commission  which  makes  it  impracticable  for  the  Fund  to  dispose  of its
securities or value its assets, or during any other period permitted by order of
the Commission for the protection of investors.

    To sell  Shares at their net  asset  value  through  an  Authorized  Firm (a
repurchase),  a Partner  can place a  repurchase  order  with the Firm,  who may
charge a fee. Net asset value is calculated on the day the Firm places the order
with the Principal  Underwriter,  as the Fund's agent,  if the Firm receives the
order prior to the close of regular trading on the Exchange and  communicates it
to the Principal  Underwriter  on the same day before the Principal  Underwriter
closes.

    If  Shares  were  recently  purchased,  the  proceeds  of  a  redemption  or
repurchase  will not be sent until the check  (including  certified or cashier's
check)  received  for the  Shares  purchased  has  cleared.  Payment  for shares
tendered for  redemption or repurchase  may result in a delay of more than seven
days when the purchase check has not yet cleared, but the delay (anticipated not
to exceed fifteen days, but possibly  longer) will be no longer than required to
verify that the purchase check has cleared.

    If shares  have been  purchased  at net asset  value with no  initial  sales
charge by virtue of the purchase having been in the amount of $1 million or more
and are redeemed  within 18 months after the end of the calendar  month in which
the purchase was made, a CDSC of 1% will be imposed on such redemption. The CDSC
will be retained by the Principal Underwriter.

    The CDSC will be  imposed on an amount  equal to the  lesser of the  current
market value or the original purchase price of the shares redeemed. Accordingly,
no CDSC will be imposed on increases in account value above the initial purchase
price,  including any dividends or  distributions  that have been  reinvested in
additional shares.

    In determining whether a CDSC is applicable to a redemption, the calculation
will be made in a manner that results in the lowest possible rate being charged.
Accordingly,  it will be assumed that redemptions are made first from any shares
in the shareholder's account that are not subject to a CDSC.

    The CDSC is waived for redemptions involving certain liquidation,  merger or
acquisition  transactions involving other investment companies. If a shareholder
reinvests  redemption  proceeds  within the 30 day period and in accordance with
the conditions set forth under "Eaton Vance Shareholder Services -- Reinvestment
Privilege,"  the  shareholder's  account will be credited with the amount of any
CDSC paid on such redeemed shares.

    The value of Shares  redeemed or repurchased  may be more or less than their
cost  depending on the market value of the Fund's  portfolio  securities  at the
time of  redemption  or  repurchase.  To the  extent  the cash  proceeds  of any
redemption or repurchase exceed the investor's adjusted basis of his partnership
interest in the Fund, he will  generally  realize a gain for Federal  income tax
purposes.  If, upon  redemption or repurchase of all Shares  (liquidation of the
entire partnership  interest) in the account,  the investor's  adjusted basis of
his partnership  interest exceeds the proceeds of such redemption or repurchase,
he will generally  realize a loss for Federal income tax purposes.  

BY WRITING A CHECK:
    Partners  holding  Shares for which  certificates  have not been  issued may
appoint  Boston Safe Deposit and Trust Company  ("Boston  Safe") their agent and
may request on the Account  Instruction  form that Boston Safe provide them with
special  forms of checks drawn on Boston Safe.  These checks may be made payable
by the Partner to the order of any person in any amount of $500 or more.  When a
check is presented to Boston Safe for payment, the number of full and fractional
Shares  required  to cover the  amount of the check  will be  redeemed  from the
Partner's account by Boston Safe as the Partner's agent.  Through this procedure
the Partner will continue to be entitled to distributions  paid on his Shares up
to the time the check is presented to Boston Safe for payment.  If the amount of
the  check is  greater  than the  value of the  Shares  for  which  the Fund has
collected payment held in the Partner's account,  the check will be returned and
the Partner  may be subject to extra  charges.  To obviate  such a return of the
check,  the  check  should  not be  written  for  close to the full  value of an
account.

    The Partner will be required to execute  signature cards and will be subject
to Boston Safe's rules and regulations  governing such checking accounts.  There
is no charge to Partners for this  service.  This service may be  terminated  or
suspended at any time by the Fund or Boston Safe.

THE LIFETIME INVESTING ACCOUNT
- --------------------------------------------------------------------------------

THE  TRANSFER  AGENT  AUTOMATICALLY  SETS UP AN  ACCOUNT  FOR YOU.  EACH  TIME A
TRANSACTION TAKES PLACE YOU WILL RECEIVE A STATEMENT SHOWING COMPLETE DETAILS OF
THE TRANSACTION AND THE ACCOUNT'S CURRENT BALANCE

AFTER AN  INVESTOR  MAKES AN INITIAL  PURCHASE  OF SHARES,  THE FUND'S  TRANSFER
AGENT, THE SHAREHOLDER  SERVICES GROUP,  INC., WILL SET UP A LIFETIME  INVESTING
ACCOUNT  FOR THE  INVESTOR  ON THE FUND'S  RECORDS.  This  account is a complete
record of all transactions  between the investor and the Fund which at all times
shows the balance of Shares  owned.  The Fund will not issue share  certificates
except upon request.

    Each time a transaction takes place in an investor's  account,  the investor
will receive a statement  showing  complete  details of the  transaction and the
current balance in the account.  (Under certain investment plans, statements may
be sent only quarterly). The Lifetime Investing Account also permits an investor
to  make  additional  investments  by  sending  a  check  for $50 or more to The
Shareholder  Services  Group,  Inc.  Inquiries  regarding an investor's  account
should  identify  the  investor's  name and account  number and be  addressed in
writing to The Shareholder  Services Group, Inc., BOS725, P.O. Box 1559, Boston,
MA 02104.

    Any questions  concerning a shareholder's  account or services available may
also be directed by  telephone to Eaton Vance  Shareholder  Services at 800-225-
6265, extension 2.

    A beneficial owner of shares who holds his shares in a "street name" account
at an investment firm is reminded that all recordkeeping, transaction processing
and  payments of  distributions  to his account will be done by the firm holding
the shares,  and not by the Fund or its transfer agent.  Year end forms required
for tax purposes  also may be provided by that  investment  firm.  The Fund will
have no record of  transactions  for a  beneficial  owner of shares while shares
held for him are in a "street name" account.  Requests for any such  information
regarding the shares or the account should be directed to that investment firm.

    Transactions  in a "street name" account will be reflected on the records of
the Fund only upon the  instructions  of the investment firm which is the record
owner of the shares.  A beneficial  owner of shares in a "street  name"  account
should contact his  investment  firm  representative  if he wants to purchase or
redeem  shares or make other  changes in his  account.  A transfer  of a "street
name" account at one investment  firm to a "street name" account at another firm
may require  approval by the transferee  firm.  There are no fees charged by the
Fund for an account transfer, but transfer fees may be charged by the investment
firms.

    Before  establishing  a "street name"  account with an  investment  firm, or
transferring  the account to another  investment  firm,  an investor  wishing to
reinvest  distributions  should  determine  whether the firm which will hold the
shares allows reinvestment of distributions in "street name" accounts.

  UNDER  A  LIFETIME   INVESTING  ACCOUNT  A  SHAREHOLDER  CAN  MAKE  ADDITIONAL
  INVESTMENTS BY SENDING A CHECK FOR $50 OR MORE.

SERVICES FOR HOLDERS OF SHARES
- --------------------------------------------------------------------------------

FULL  INFORMATION  ON  EACH  OF THE  SERVICES  IS  AVAILABLE  FROM  EATON  VANCE
DISTRIBUTORS.

THE FOLLOWING  SERVICES ARE VOLUNTARY,  UNLESS OTHERWISE  INDICATED,  INVOLVE NO
EXTRA CHARGE,  AND MAY BE CHANGED OR  DISCONTINUED  WITHOUT PENALTY AT ANY TIME.
Full  information on each of the services  described  below and an  application,
where  required,  is  available  from  Authorized  Firms or from  the  Principal
Underwriter.  The  cost  of  administering  such  services  for the  benefit  of
shareholders  who  participate in them is borne by the Fund as an expense to all
shareholders.

INVEST-BY-MAIL -- FOR  PERIODIC  SHARE  ACCUMULATION: Once  the  $1,000  minimum
investment has been made, checks of $50 or more payable to the order of the Fund
may be mailed directly to The Shareholder Services Group, Inc., BOS725, P.O. Box
1559,  Boston,  MA  02104  at any  time  --  whether  or not  distributions  are
reinvested. The name of the Partner and his account number should accompany each
investment.


                
BANK DRAFT INVESTING -- FOR REGULAR SHARE  ACCUMULATION: Cash investments of $50
or more made through the Partner's checking account via bank draft each month or
quarter.  The  $1,000  minimum  initial  investment  is  waived  for Bank  Draft
Investing accounts.


STATEMENT OF INTENTION:  You are eligible for reduced sales charges on purchases
of $100,000 or more made over a 13-month period.


RIGHT OF  ACCUMULATION:  You can  qualify  for reduced  sales  charges  when the
current market value of holdings (shares at current  offering  price),  plus new
purchases,  reach  $100,000 or more.  Shares of the Eaton Vance funds  mentioned
below  under  "Exchange  Privilege"  may be  combined  under  the  Statement  of
Intention and Right of Accumulation.


SERVICE FOR WITHDRAWAL:  You can draw on your shareholdings  systematically with
monthly or  quarterly  checks in the amount you  specify.  A minimum  deposit of
$5,000 in Shares is required.


EXCHANGE PRIVILEGE: You may currently exchange Fund shares for  shares of any of
the following funds at their  respective net asset value per share:  Eaton Vance
Cash  Management  Fund,  Eaton Vance  Growth  Fund,  Eaton Vance  Income Fund of
Boston,  Eaton Vance Special  Equities Fund, Eaton Vance Stock Fund, Eaton Vance
Tax Free  Reserves and any fund in the Eaton Vance  Traditional  Group of Funds.
Shares of certain other open-end funds for which Eaton Vance acts as adviser may
be similarly  exchanged for Fund shares at their respective net asset values per
share,  but  subject  to any  restrictions  or  qualifications  set forth in the
current  prospectus of any such fund. The prospectus for each fund describes its
investment objectives and policies,  and shareholders should obtain a prospectus
and consider  these  objectives  and policies  carefully  before  requesting  an
exchange.  An exchange  must involve  shares with a net asset value of $1,000 or
more. The exchange  privilege may be changed or  discontinued  without  penalty.
Shareholders  will be given sixty (60) days notice prior to any  termination  or
material amendment of the exchange privilege. These offers are available only in
states where shares of the fund being  acquired may be legally  sold.

    Shares of the Fund which are subject to a CDSC may be exchanged  into any of
the above funds without  incurring the CDSC. The shares  acquired in an exchange
may be subject to a CDSC upon  redemption.  For purposes of  computing  the CDSC
payable upon redemption of shares acquired in an exchange, the holding period of
the original shares is added to the holding period of the shares acquired in the
exchange.

    The  Shareholder   Services   Group,   Inc.  makes  exchanges  at  the  next
determination  of net asset value after  receiving  an exchange  request in good
order (see "How to Redeem or Sell Shares"), and share certificates,  if any. The
Shareholder Services Group, Inc. will require additional documentation if shares
are registered in the name of a corporation,  partnership or fiduciary.  Consult
The Shareholder Services Group, Inc. for additional  information  concerning the
exchange  privilege.  Applications  and  prospectuses  of the  other  funds  are
available from your financial service firm or from the Principal Underwriter.

    Telephone  exchanges  are also accepted if the exchange  involves  shares on
deposit  with The  Shareholder  Services  Group,  Inc.  and the investor has not
disclaimed in writing the use of the privilege.  To effect such exchanges,  call
The Shareholder  Services Group, Inc. at 800-262-1122 or, within  Massachusetts,
617-573-9403,  Monday through Friday,  9:00 a.m. to 4:00 p.m.  (Eastern Standard
Time).  All such telephone  exchanges must be registered in the same name(s) and
with the same address as are registered with the fund from which the exchange is
being made.  Neither the Fund,  the Principal  Underwriter  nor The  Shareholder
Services  Group,  Inc.  will be  responsible  for the  authenticity  of exchange
instructions  received by  telephone  provided  that  reasonable  procedures  to
confirm that instructions communicated are genuine have been followed. Telephone
instructions  will be tape  recorded.  In times of  drastic  economic  or market
changes, a telephone exchange may be difficult to implement.

    An exchange  may create a taxable  gain or loss.  The Fund or the  Principal
Underwriter  may alter or terminate  the exchange  privilege at any time without
notice.

    REINVESTMENT PRIVILEGE: A  Partner  who has had his  Shares  repurchased  or
redeemed  may  reinvest  any  portion  or all of his  repurchase  or  redemption
proceeds (plus that amount  necessary to acquire a fractional Share to round off
his purchase to the nearest full Share) in Shares of the Fund, or, provided that
the  shares  repurchased  or  redeemed  have been held for at least 30 days,  in
shares of any of the other funds  offered by the Principal  Underwriter  with an
initial  sales  charge at net asset value,  provided  that the  reinvestment  is
effected within 30 days after such repurchase or redemption.  Shares are sold to
a reinvesting  Partner at the net asset value next determined  following  timely
receipt of a written purchase order by the Principal  Underwriter or by the fund
whose  shares  are to be  purchased  (or  by  such  fund's  transfer  agent).  A
reinvesting  Partner may  realize a gain or loss for  Federal tax  purposes as a
result of such  repurchase or redemption,  but to the extent that any Shares are
sold at a loss and the proceeds are  reinvested  in Shares of the Fund,  some or
all of the loss may not be allowed as a deduction  depending among other things,
upon the relationship between the number of Shares sold and the number of Shares
purchased by the reinvesting Partner. The privilege is also available to holders
of  shares  of the other  funds  offered  with an  initial  sales  charge by the
Principal  Underwriter who wish to reinvest proceeds in Shares of the Fund. If a
Partner  reinvests  redemption  proceeds  within the 30 day period the Partner's
account  will be  credited  with the  amount of any CDSC  paid on such  redeemed
shares.  A  reinvesting  Partner  may  realize  a gain or loss for  Federal  tax
purposes  as  a  result  of  such   repurchase   or   redemption.

ALLOCATIONS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------

INCOME IS DISTRIBUTED MONTHLY.

ALLOCATIONS  AND  DISTRIBUTIONS

The Fund intends to make monthly distributions  substantially  equivalent to its
net investment income to the holders of Shares,  pro rata on the record date for
each  such  distribution.  Such  distributions  will be paid,  unless  otherwise
directed, in additional Shares.  Normally, net realized short-term and long-term
capital gains, if any, will not be distributed.  Undistributed  income and gains
(as well as losses),  whether  realized or not,  will be reflected in the Fund's
net asset value per Share.  Because  shareholders  are  Limited  Partners of the
Fund, each shareholder will be allocated for tax purposes a proportionate  share
(computed on a weighted  monthly  average  basis) of each item of income,  gain,
loss, deduction or credit realized by the Fund. Allocations are made in a manner
intended  to  comport  with  each  holder's  respective  interest,  as a Limited
Partner,  in the Fund under the applicable U.S. Treasury  regulations,  although
there  can be no  assurance  that  the  allocations  made  by the  Fund  will be
respected by the Internal  Revenue Service and that  additional  income or gains
will not be  reallocated  to any  particular  shareholder.  The Fund's method of
allocation may result in allocation of gains and losses to shareholders  for tax
purposes which do not necessarily reflect actual gains or losses realized by the
Fund during such  shareholders'  period of investment in the Fund.  For example,
discrepancies  may be  caused  by the fact that  gains or  losses  allocable  to
particular  shareholders may reflect  appreciation or depreciation in the assets
of the Fund which occurred prior to such shareholders'  purchase of their Shares
of the Fund.


TAXES

The Fund has  received  an opinion  of counsel  and  rulings  from the  Internal
Revenue  Service  to the  effect,  among  other  things,  that the Fund  will be
classified  as a partnership  for Federal  income tax purposes and that interest
income exempt from Federal income tax when received by the Fund will retain such
tax exempt  status when  allocated  to Partners  of the Fund.  Such  rulings are
conditioned  on  maintenance  by the General  Partners in the  aggregate of a 1%
interest in the Fund at all times.  As a partnership,  the Fund is not an entity
subject to Federal  income tax. This Federal  income tax treatment will continue
to apply  through  December  31, 1997 at which  time,  in  accordance  with 1987
Federal tax legislation,  the Fund will be taxed as a corporation. At that time,
the Director General Partners will take appropriate steps to avoid such tax, for
example by electing to have the Fund taxed under Subchapter M of the Code which,
upon satisfaction of certain  conditions,  eliminates tax at the corporate level
and permits qualifying  corporations to pay dividends exempt from Federal income
taxation.

    Interest earned by the Fund on Municipal Bonds is not taxable to the holders
of Shares for regular  Federal income tax purposes.  Interest income received by
the Fund from certain  temporary  investments  (such as certificates of deposit,
commercial paper and obligations of the United States  Government,  its agencies
and instrumentalities) and net short-term capital gains realized by the Fund, if
any,  will be taxable to holders  of Shares as  ordinary  income and  short-term
capital  gains,  respectively,  and will not qualify for the 70%  deduction  for
dividends received by corporate  Partners.  Net long-term capital gains realized
by the Fund, if any,  will be taxable to holders of Shares as long-term  capital
gains regardless of the length of time an investor has held such Shares and will
also not qualify for the dividends received deduction for corporate Partners. An
allocable  portion of net capital losses realized by the Fund may be deducted by
a holder of Shares to the extent  that such  losses do not  exceed the  holder's
adjusted  basis for his  shares.  The Fund's  activities  involving  options and
futures  contracts  will  generate  taxable  gains  or  losses,  and the  Fund's
investment  in stripped  Municipal  Bonds or coupons may generate  some discount
that will be taxable as ordinary income. Securities lending by the Fund may also
produce taxable  income.  The Fund will report annually to the holders of Shares
their  proportion of Fund gains  realized by the Fund, if any,  interest  income
(including  interest  exempt from  regular  Federal  income tax and the interest
exempt from the Federal alternative minimum tax), gains, losses,  deductions and
credits.

    The  holder's  adjusted  basis  for all  Fund  Shares  in his  account  (his
partnership  interest in the Fund) will be the aggregate  prices paid  therefor,
increased by the amounts of such holder's  distributive share of items of income
(including interest income exempt from Federal income tax) and realized net gain
of the  Fund,  and  reduced,  but not below  zero,  by (i) the  amounts  of such
holder's  distributive  share of items of Fund loss,  and (ii) the amount of any
cash  distributions  (including  distributions  of interest  income  exempt from
Federal income tax and cash distributions on redemption or repurchase of Shares)
received by such holder.  Cash  distributions  in excess of a holder's  adjusted
basis in his Shares  immediately  prior  thereto  generally  will  result in the
recognition  of gain to such  holder in the amount of such  excess.  For Federal
income tax  consequences  on a redemption or  repurchase of Shares,  see "How to
Redeem or Sell Shares."

    A Partner's  distributive share of tax-exempt interest is included as income
for  purposes of  determining  the  taxability  of social  security and railroad
retirement benefits.

    Interest on indebtedness incurred by Partners to purchase or carry Shares of
the Fund will not be  deductible  for  Federal  income  tax  purposes.  Further,
entities  or  persons  who  are  "substantial  users"  (or  persons  related  to
"substantial  users") of facilities  financed by industrial revenue bonds should
consult their tax advisers before purchasing Shares of the Fund.

    Each  holder  of  Shares  who is an  individual  (or a trust or  estate)  is
required to take into account  separately  on his Federal  income tax return his
pro rata  share of any  items of  deduction  of the  Fund  that are  defined  as
miscellaneous itemized deductions. Such amount will be deductible by such holder
only to the  extent his total  miscellaneous  itemized  deductions  exceed 2% of
adjusted gross income.

    Partnerships  are not treated as separate  taxable entities under most state
and local tax laws,  and the income of a partnership  is considered to be income
of the  partners  both in timing and in  character.  The  exemption  of interest
income for Federal income tax purposes does not necessarily  result in exemption
under the income or tax laws of any state or local taxing authority. The laws of
the  various  states  and local  taxing  authorities  vary with  respect  to the
taxation  of such  interest  income,  as well as to the status of a  partnership
interest  under state and local tax laws,  and each holder of Shares of the Fund
is advised to consult his own tax adviser.  The Fund will report annually to the
holders of Shares the percentage of interest  income received by the Fund during
the preceding year on Municipal Bonds,  indicating on a state-by-state basis the
source of such income.

    From time to time proposals  have been  introduced  before  Congress for the
purpose of  restricting  or  eliminating  the Federal  income tax  exemption for
interest  on  municipal  obligations.  Federal tax  legislation  enacted in 1986
caused  interest  on  certain  municipal  obligations  to  be  treated  as a tax
preference item for individuals and corporations in computing their  alternative
minimum tax liability and may affect the  availability of municipal  obligations
for investment by the Fund and the value of the Fund's portfolio.

    The Partnership  Agreement  provides that the General  Partners shall not be
liable  to any  holders  of Shares or to any  Limited  Partner  by reason of any
change in the Federal  income tax laws as they apply to the Fund and the Limited
Partners,   whether  such  change  occurs  through   legislative,   judicial  or
administrative  action, so long as the General Partners have acted in good faith
and in a manner  reasonably  believed to be in the best interests of the Limited
Partners.

    This Fund is not a  suitable  investment  for  non-U.S.  persons  (including
nonresident  aliens) because  investment in the Fund may cause such investors to
be deemed to be engaged in a U.S.  trade or business and to become fully subject
to U.S. tax on distributions and proceeds from the redemption of Shares.

    See  the  Statement  of  Additional   Information  for  further  information
regarding tax matters.  You should consult your tax adviser  regarding  specific
questions as to Federal, state and local taxes.

                          TAX EQUIVALENT YIELD TABLE

    The table shows the approximate  taxable bond yields which are equivalent to
tax-exempt  bond yields from 5% to 8% under the regular  Federal income tax laws
that  apply to 1994.  (Such  yields  may  differ  under the laws  applicable  to
subsequent years). Separate calculations,  showing the applicable taxable income
brackets,  are  provided  for  investors  who file joint  returns  and for those
investors who file individual returns.

<TABLE>
<CAPTION>
                                                    MARGINAL
      SINGLE RETURN             JOINT RETURN         INCOME                             TAX-EXEMPT YIELD
- -------------------------  ----------------------      TAX        5%       5.5%       6%       6.5%       7%       7.5%      8%
                                                                -------------------------------------------------------------------
                (TAXABLE INCOME)<F1>                 BRACKET                        EQUIVALENT TAXABLE YIELD
- -------------------------------------------------  -----------  -------------------------------------------------------------------
      <S>                     <C>                    <C>         <C>       <C>       <C>      <C>       <C>       <C>       <C>    
         Up to   $ 22,750        Up to   $ 38,000    15.00%      5.88%     6.47%     7.06%     7.65%     8.24%     8.82%     9.41%
      $ 22,751 - $ 55,100     $ 38,001 - $ 91,850    28.00       6.94      7.64      8.33      9.03      9.72     10.42     11.11
      $ 55,101 - $115,000     $ 91,851 - $140,000    31.00       7.25      7.97      8.70      9.42     10.14     10.87     11.59
      $115,001 - $250,000     $140,001 - $250,000    36.00       7.81      8.59      9.38     10.16     10.94     11.72     12.50
            Over $250,000           Over $250,000    39.60       8.28      9.11      9.93     10.76     11.59     12.42     13.25
</TABLE>
Yields shown are for  illustration  purposes only and are not meant to represent
the Fund's actual yield.

[FN]
<F1> Net amount subject to the Federal  personal income tax after deductions and
     exemptions.

Note: The  above-indicated  Federal Income Tax Brackets do not take into account
the effect of a  reduction  in the  deductibility  of  Itemized  Deductions  for
taxpayers with Adjusted  Gross Income in excess of $111,800,  nor the effects of
phaseout of personal  exemptions for single and joint filers with Adjusted Gross
Income in excess of $111,800  and  $167,700,  respectively.  The  effective  top
marginal  Federal income tax brackets of taxpayers over ranges of income subject
to these reductions or phaseouts will be higher than indicated above.

While  it is  expected  that  a  substantial  portion  of  the  interest  income
distributed to the Fund's  shareholders  will be exempt from the regular Federal
income tax, portions of such  distributions  from time to time may be subject to
such tax.  This table does not take into account  state or local taxes,  if any,
payable on Fund distributions.  It should also be noted that the interest earned
on certain  "private  activity bonds" issued after August 7, 1986,  while exempt
from the regular  Federal income tax, is treated as a tax preference  item which
could  subject  the  recipient  to the  Federal  alternative  minimum  tax.  The
illustrations assume that the Federal alternative minimum tax is not applicable.

The information set forth above is as of the date of this Prospectus. Subsequent
tax law changes could result in prospective  or  retroactive  changes in the tax
brackets, tax rates, and tax equivalent yields set forth above.


BACKUP WITHHOLDING
- --------------------------------------------------------------------------------

PROCEEDS OF VARIOUS DISTRIBUTIONS

It is required  under  Federal  income tax laws that 31% of certain  proceeds of
redemption requests received directly from shareholders and of redemptions under
any  exchange  privilege  be withheld if (i) a correct  and  certified  Taxpayer
Identification  Number (TIN) is not provided for your account,  (ii) you fail to
certify  that  you  have not  been  notified  by the IRS that you  underreported
taxable  interest or dividend  payments or (iii) the Fund is notified by the IRS
(or a broker) that the TIN provided is incorrect or you are otherwise subject to
backup withholding. Amounts withheld and forwarded to the IRS can be credited as
a payment of tax when completing your Federal income tax return.

For  most  individual  taxpayers,  the TIN is the  social  security  number.  An
investor  may  furnish  the  Transfer  Agent with such  number and the  required
certifications by completing and sending to the Transfer Agent either the Fund's
Account  Application  form  at the  back of  this  prospectus  or IRS  Form W-9.
Special  rules  apply  for  certain  accounts.   For  example,  for  an  account
established under the Uniform Gift to Minors Act, the TIN of the minor should be
furnished.

TO APPLY FOR A TIN

If you do not have a TIN or do not know your number, you may apply for one using
Form SS-5,  "Application for a Social Security Card" or Form SS-4,  "Application
for Employer  Identification Number." These forms are available at local offices
of  the  Social  Security   Administration   or  the  IRS.  We  will  forward  a
certification  form to you which  you  should  use to notify us of your  number.
Withholding  may apply to payments  made to your account  before we receive your
certified number.

EXEMPT RECIPIENTS

Exempt recipients should provide their TIN and underline 2(a) in the TIN section
of the application to avoid possible erroneous withholding. A partial listing of
exempt classes of investors follows: corporations, financial institutions, IRAs,
the U.S.  Government,  a State or possession of the U.S., a foreign  government,
international  organizations,  and  501(a)  exempt  entities  such as  colleges,
churches and charitable organizations.

POWER OF ATTORNEY
- ------------------------------------------------------------------------------
The following  provisions  are adopted by each  purchaser of Shares of the Fund,
irrespective   of  whether  or  not  such  purchaser  has  executed  an  account
application or any other document.

    * Each purchaser of Shares of the Fund specifically accepts and agrees to be
      bound by all of the terms  and  provisions  of the  Amended  and  Restated
      Agreement of Limited  Partnership of Eaton Vance  Municipal Bond Fund L.P.
      as from time to time amended or restated  (the  "Partnership  Agreement"),
      including without  limitation the Power of Attorney set forth in Section X
      thereof and printed below,  and agrees to become a Limited  Partner and to
      be subject to all of the rights and obligations of a Limited Partner under
      the Partnership Agreement.

    * Each purchaser of Shares ("Limited Partner") hereby makes, constitutes and
      appoints  (i) each  person  who is or  shall  hereafter  become a  General
      Partner  of the Fund from time to time and (ii) any  substitute  which any
      such General  Partner may hereafter  appoint to act in his place (who need
      not be a Partner of the Fund), the true and lawful attorney of, and in the
      name, place and stead of, said Limited  Partner,  with the power from time
      to time to sign, execute,  acknowledge,  make, swear to, verify,  deliver,
      file, record, and/or publish:

      (1) the Partnership  Agreement and any Certificate of Limited  Partnership
    filed or  recorded  under the laws of the State of  California  or any other
    jurisdiction;

      (2) any  amendment to the  Partnership  Agreement or any  amendment to any
    such  Certificate of Limited  Partnership or any other document  required to
    reflect  any  action  of  the  Partners  provided  for  in  the  Partnership
    Agreement,  whether  or not  such  Limited  Partner  voted  in  favor  of or
    otherwise consented to such action; and

      (3) any other  instrument,  certificate  or document as may be required by
    any regulatory agency, the laws of the United States, any state or any other
    jurisdiction  in which the Fund is doing or intends to do  business or which
    the Director  General  Partners deem  advisable to file or record,  provided
    such instrument, certificate or document is consistent with the terms of the
    Partnership Agreement as then in effect.

    Each  Limited  Partner  acknowledges  and  agrees  that  the  terms  of  the
Partnership  Agreement permit certain amendments of the Partnership Agreement to
be effected and certain  other actions to be taken or omitted by or with respect
to the Fund,  in each case  either  (a) with the  approval  of less than all the
limited partners,  provided that the Partners holding a specified  percentage of
Shares  shall have voted in favor of or otherwise  consented to such action,  or
(b) without the approval of the Limited Partners. Such actions include,  without
limitation,  admission of new General  Partners  duly elected at meetings of the
Partners.  If, as and when (i) an  amendment  of the  Partnership  Agreement  is
proposed or an action is  proposed to be taken or omitted by or with  respect to
the Fund  which  requires,  under the terms of the  Partnership  Agreement,  the
approval of the Partners  holding a specified  percentage (but less than all) of
the Shares,  (ii) the Partners holding the percentage of Shares specified in the
Partnership  Agreement  as being  required  for such  amendment  or action  have
approved such amendment or action in the manner  contemplated by the Partnership
Agreement,  and (iii) a Limited  Partner  has failed or refused to approve  such
amendment  or  action  (hereinafter  referred  to  as a  non-consenting  Limited
Partner),  each non-consenting Limited Partner hereby consents to such amendment
or action and agrees that each special attorney specified above, with full power
of  substitution,  is hereby  authorized and empowered to execute,  acknowledge,
make, swear to, verify, deliver,  record, file and/or publish, for and on behalf
of such  non-consenting  Limited Partner,  and in his name, place and stead, any
and all  instruments  and  documents  which may be necessary or  appropriate  to
permit such  amendment to be lawfully made or action  lawfully taken or omitted.
Each Limited  Partner is fully aware that he and each other Limited Partner have
granted this special  power-of-attorney,  and that all Partners will rely on the
effectiveness  of such powers with a view to the orderly  administration  of the
Fund's affairs.

    The foregoing grant of authority (i) is a Special  Power-of-Attorney coupled
with an interest in favor of the General  Partners,  or substitute  appointed to
act in place  thereof,  and as such shall be  irrevocable  and shall survive the
death or insanity (or, in the case of a Limited  Partner that is a  corporation,
association,  partnership,  joint venture,  trust or other entity, shall survive
the merger,  dissolution  or other  termination of the existence) of the Limited
Partner,  (ii) may be exercised for the Limited Partner by a facsimile signature
of any General  Partner of the Fund or substitute  therefor or by listing all of
the Limited  Partners,  including  such  Limited  Partner,  or stating  that all
Limited  Partners,  while not  specifically  named, are executing any instrument
with a single signature of any General Partner or substitute  therefor acting as
attorney-in-fact  for all of them,  and (iii) shall  survive the  assignment  or
redemption by the Limited Partner of the whole or any portion of his interest.

<PAGE>


                                                                        APPENDIX
<TABLE>

                                EATON VANCE MUNICIPAL BOND FUND L.P.
                                   ASSET COMPOSITION INFORMATION
                            For the Fiscal Year Ended December 31, 1993
<CAPTION>
                                          MOODY'S/S&P                         PERCENT OF NET ASSETS
                                          -----------                         ---------------------
   <S>                                                                        <C>   
                                           Aaa or AAA  .................            37.0 %
                                             Aa or AA  .................            23.8 %
                                                    A  .................            18.1 %
                                           Baa or BBB  .................             9.8 %
                                             Ba or BB  .................             --  %
                                              Unrated  .................            12.0 %
    Short-Term Obligations, Cash, Interest Receivable  .................            (0.7)%
                                                                                   -----
                                                     Total  .................      100.0 %
</TABLE>

    The chart above  indicates the weighted  average  composition  of the Fund's
portfolio for the fiscal year ended December 31, 1993,  with the debt securities
rated by Moody's  Investors  Service,  Inc.  or  Standard  & Poor's  Corporation
separated into the indicated  categories.  The weighted average  indicated above
was calculated on a dollar weighted basis and was computed as at the end of each
month during the fiscal year. The chart does not  necessarily  indicate what the
composition of the Fund's portfolio will be in the current and subsequent fiscal
years.

    For a detailed description of Moody's Investors Service, Inc. and Standard
& Poor's Corporation ratings of municipal bonds, see the Appendix to the
Fund's Statement of Additional Information.


<PAGE>
INVESTMENT ADVISER
Eaton Vance Management
24 Federal Street
Boston, MA 02110

PRINCIPAL UNDERWRITER
Eaton Vance Distributors, Inc.
24 Federal Street
Boston, MA 02110
(800) 225-6265

CUSTODIAN
Investors Bank & Trust Company
24 Federal Street
Boston, MA 02110

TRANSFER AGENT
The Shareholder Services Group, Inc.
BOS725
P.O. Box 1559
Boston, MA 02104
(800) 262-1122

INDEPENDENT ACCOUNTANTS
Deloitte & Touche
125 Summer Street
Boston, MA 02110


EATON VANCE
MUNICIPAL BOND FUND L.P.
24 FEDERAL STREET
BOSTON, MA 02110

MBP

EATON VANCE
MUNICIPAL BOND
FUND L.P.



PROSPECTUS

MAY 1, 1994

     


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