EATON VANCE GOVERNMENT OBLIGATIONS TRUST
485BPOS, 1995-04-27
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<PAGE>

   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 27, 1995
    

                                                       1933 ACT FILE NO. 2-90946
                                                      1940 ACT FILE NO. 811-4015
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM N-1A

                             REGISTRATION STATEMENT
                                     UNDER

   
                          THE SECURITIES ACT OF 1933                      [X]
                       POST-EFFECTIVE AMENDMENT NO. 22                    [X]
    

                             REGISTRATION STATEMENT
                                     UNDER

   
                      THE INVESTMENT COMPANY ACT OF 1940                  [X]
                               AMENDMENT NO. 25                           [X]
    

                   EATON VANCE GOVERNMENT OBLIGATIONS TRUST
                   ----------------------------------------
              (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
                24 FEDERAL STREET, BOSTON, MASSACHUSETTS 02110
                   ---------------------------------------
                   (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)

                                 617-482-8260
                       -------------------------------
                        (REGISTRANT'S TELEPHONE NUMBER)

                              H. DAY BRIGHAM, JR.
                 24 FEDERAL STREET, BOSTON, MASSACHUSETTS 02110
                      ---------------------------------
                   (NAME AND ADDRESS OF AGENT FOR SERVICE)

   
    It is  proposed  that  this  filing  will  become  effective  on May 1, 1995
pursuant to paragraph (b) of Rule 485.
    

    The exhibit index  required by Rule 483(a) under the  Securities Act of 1933
is located on page __ in the sequential  numbering system of the manually signed
copy of this Registration Statement.

   
    The  Registrant  has  filed a  Declaration  pursuant  to Rule  24f-2  and on
February  23,  1995 filed its  "Notice"  as required by that Rule for the fiscal
year ended December 31, 1994.
    

    Government Obligations Portfolio has also executed this Registration
Statement.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

This  Amendment  to the  registration  statement  on Form N-1A  consists  of the
following documents and papers:

    Cross  Reference  Sheets required by Rule 481(a) under the Securities Act of
1933

    Part A--The Prospectuses of:
            EV Classic Government Obligations Fund
            EV Marathon Government Obligations Fund
            EV Traditional Government Obligations Fund

    Part B--The Statements of Additional Information of:
            EV Classic Government Obligations Fund
            EV Marathon Government Obligations Fund
            EV Traditional Government Obligations Fund

    Part C--Other Information

    Signatures

    Exhibit Index Required by Rule 483(a) under the Securities Act of 1933

    Exhibits

This  Amendment  is not  intended  to amend  the  Prospectus  and  Statement  of
Additional  Information  of any other series of the  Registrant  not  identified
above.

<PAGE>
                   EATON VANCE GOVERNMENT OBLIGATIONS TRUST
                     EV CLASSIC GOVERNMENT OBLIGATIONS FUND
                   EV MARATHON GOVERNMENT OBLIGATIONS FUND
                             CROSS REFERENCE SHEET
                          ITEMS REQUIRED BY FORM N-1A
                         ---------------------------
PART A
ITEM NO.           ITEM CAPTION                 PROSPECTUS CAPTION
- -------            ------------                 ----------------------------
 1. .............  Cover Page                   Cover Page
 2. .............  Synopsis                     Shareholder and Fund Expenses
 3. .............  Condensed Financial          The Fund's Financial
                     Information                  Highlights; Performance
                                                  Information
 4. .............  General Description of       The Fund's Investment
                     Registrant                   Objective; How the Fund and
                                                  the Portfolio Invest their
                                                  Assets; Organization of the
                                                  Fund and the Portfolio
 5. .............  Management of the Fund       Management of the Fund and the
                                                  Portfolio
 5A..............  Management's Discussion of   Not Applicable
                     Fund Performance
 6. .............  Capital Stock and Other      Organization of the Fund and
                     Securities                   the Portfolio; Report to
                                                  Shareholders; The Lifetime
                                                  Investing Account/
                                                  Distribution Options;
                                                  Distributions and Taxes
 7. .............  Purchase of Securities       Distribution Plan; Valuing
                     Being Offered                Fund Shares; How to Buy Fund
                                                  Shares; The Lifetime
                                                  Investing Account/
                                                  Distribution Options; The
                                                  Eaton Vance Exchange
                                                  Privilege; Eaton Vance
                                                  Shareholder Services
 8. .............  Redemption or Repurchase     How to Redeem Fund Shares
 9. .............  Pending Legal Proceedings    Not Applicable

PART B                                          STATEMENT OF ADDITIONAL
ITEM NO.           ITEM CAPTION                 INFORMATION CAPTION
- -------            ------------                 ----------------------------
10. .............  Cover Page                   Cover Page
11. .............  Table of Contents            Table of Contents
12. .............  General Information and      Other Information
                     History
13. .............  Investment Objectives and    Investment Objective;
                     Policies                     Additional Information about
                                                  Investment Policies;
                                                  Investment Restrictions
14. .............  Management of the Fund       Trustees and Officers; Fees
                                                  and Expenses
15. .............  Control Persons and          Control Persons and Principal
                     Principal Holders of         Holders of Securities
                     Securities
16. .............  Investment Advisory and      Investment Adviser and
                     Other Services               Administrator; Distribution
                                                  Plan; Custodian; Independent
                                                  Accountants; Fees and
                                                  Expenses
17. .............  Brokerage Allocation and     Portfolio Security Transactions
                     Other Practices                  
18. .............  Capital Stock and Other      Other Information
                     Securities
19. .............  Purchase, Redemption and     Determination of Net Asset
                     Pricing of Securities        Value; Principal
                     Being Offered                Underwriter; Service for
                                                  Withdrawal; Distribution
                                                  Plan; Fees and Expenses
20. .............  Tax Status                   Taxes; Additional Tax Matters
21. .............  Underwriters                 Principal Underwriter; Fees
                                                  and Expenses
22. .............  Calculation of Performance   Investment Performance;
                     Data                         Performance Information
23. .............  Financial Statements         Financial Statements

<PAGE>
                   EATON VANCE GOVERNMENT OBLIGATIONS TRUST
                  EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND
                             CROSS REFERENCE SHEET
                          ITEMS REQUIRED BY FORM N-1A
                         ---------------------------
PART A
ITEM NO.           ITEM CAPTION                       PROSPECTUS CAPTION
- -------            ------------                 ----------------------------
 1. .............  Cover Page                   Cover Page
 2. .............  Synopsis                     Shareholder and Fund Expenses
 3. .............  Condensed Financial          The Fund's Financial
                     Information                  Highlights; Performance
                                                  Information
 4. .............  General Description of       The Fund's Investment
                     Registrant                   Objective; How the Fund and
                                                  the Portfolio Invest their
                                                  Assets; Organization of the
                                                  Fund and the Portfolio
 5. .............  Management of the Fund       Management of the Fund and the
                                                  Portfolio
 5A..............  Management's Discussion of   Not Applicable
                     Fund Performance
 6. .............  Capital Stock and Other      Organization of the Fund and
                     Securities                   the Portfolio; Report to
                                                  Shareholders; The Lifetime
                                                  Investing Account/
                                                  Distribution Options;
                                                  Distributions and Taxes
 7. .............  Purchase of Securities       Service Plan; Valuing Fund
                     Being Offered                Shares; How to Buy Fund 
                                                  Shares; The Lifetime
                                                  Investing Account/
                                                  Distribution Options; The
                                                  Eaton Vance Exchange
                                                  Privilege; Eaton Vance
                                                  Shareholder Services
 8. .............  Redemption or Repurchase     How to Redeem Fund Shares
 9. .............  Pending Legal Proceedings    Not Applicable

PART B                                          STATEMENT OF ADDITIONAL
ITEM NO.           ITEM CAPTION                 INFORMATION CAPTION
- -------            ------------                 ----------------------------
10. .............  Cover Page                   Cover Page
11. .............  Table of Contents            Table of Contents
12. .............  General Information and      Other Information
                     History
13. .............  Investment Objectives and    Investment Objective;
                     Policies                     Additional Information about
                                                  Investment Policies;
                                                  Investment Restrictions
14. .............  Management of the Fund       Trustees and Officers; Fees
                                                  and Expenses
15. .............  Control Persons and          Control Persons and Principal
                     Principal Holders of         Holders of Securities
                     Securities
16. .............  Investment Advisory and      Investment Adviser and
                     Other Services               Administrator; Distribution
                                                  Plan; Custodian; Independent
                                                  Accountants; Fees and
                                                  Expenses
17. .............  Brokerage Allocation and     Portfolio Security
                     Other Practices              Transactions
18. .............  Capital Stock and Other      Other Information
                     Securities
19. .............  Purchase, Redemption and     Determination of Net Asset
                     Pricing of Securities        Value; Principal
                     Being Offered                Underwriter; Service for
                                                  Withdrawal; Distribution
                                                  Plan; Fees and Expenses
20. .............  Tax Status                   Taxes; Additional Tax Matters
21. .............  Underwriters                 Principal Underwriter; Fees
                                                  and Expenses
22. .............  Calculation of Performance   Investment Performance;
                     Data                         Performance Information
23. .............  Financial Statements         Financial Statements


<PAGE>
                                    PART A
                     INFORMATION REQUIRED IN A PROSPECTUS

                    EV CLASSIC GOVERNMENT OBLIGATIONS FUND

   
    EV CLASSIC GOVERNMENT OBLIGATIONS FUND (THE "FUND") IS A MUTUAL FUND SEEKING
A HIGH  CURRENT  RETURN,  BY  INVESTING  IN  SECURITIES  ISSUED,  GUARANTEED  OR
OTHERWISE  BACKED BY THE U.S.  GOVERNMENT  AND  ENGAGING  IN  ACTIVE  MANAGEMENT
STRATEGIES. THE FUND INVESTS ITS ASSETS IN GOVERNMENT OBLIGATIONS PORTFOLIO (THE
"PORTFOLIO"),   A  DIVERSIFIED  OPEN-END  INVESTMENT  COMPANY  HAVING  THE  SAME
INVESTMENT  OBJECTIVE  AS THE FUND,  RATHER  THAN BY DIRECTLY  INVESTING  IN AND
MANAGING ITS OWN PORTFOLIO OF SECURITIES AS WITH HISTORICALLY  STRUCTURED MUTUAL
FUNDS.  THE FUND IS A SERIES OF EATON VANCE  GOVERNMENT  OBLIGATIONS  TRUST (THE
"TRUST").
    

    Shares of the Fund are not  deposits or  obligations  of, or  guaranteed  or
endorsed  by,  any bank or other  insured  depository  institution,  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.

   
    This Prospectus is designed to provide you with  information you should know
before investing.  Please retain this document for future reference. A Statement
of Additional  Information  dated May 1, 1995 for the Fund, as supplemented from
time to time, 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. (the "Principal Underwriter"), 24 Federal Street, Boston, MA
02110 (telephone (800) 225-6265).  The Portfolio's  investment adviser is Boston
Management and Research (the "Investment Adviser"), a wholly-owned subsidiary of
Eaton Vance  Management,  and Eaton Vance Management is the  administrator  (the
"Administrator")  of the Fund.  The  offices of the  Investment  Adviser and the
Administrator are located at 24 Federal Street, Boston, MA 02110.
    

- -------------------------------------------------------------------------------
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>

                                                   Page                                                 Page
<S>                                                <C>   <C>                                              <C>
   
Shareholder and Fund Expenses .....................   2  How to Redeem Fund Shares .....................  17
The Fund's Financial Highlights ...................   4  Reports to Shareholders .......................  18
The Fund's Investment Objective ...................   5  The Lifetime Investing Account/Distribution
How the Fund and the Portfolio Invest their Assets    5     Options ....................................  18
Organization of the Fund and the Portfolio ........  10  The Eaton Vance Exchange Privilege ............  20
Management of the Fund and the Portfolio ..........  12  Eaton Vance Shareholder Services ..............  20
Distribution Plan .................................  13  Distributions and Taxes .......................  22
Valuing Fund Shares ...............................  15  Performance Information .......................  23
How to Buy Fund Shares ............................  15
- ------------------------------------------------------------------------------------------------------------
                                        Prospectus dated May 1, 1995
    
<PAGE>
   

</TABLE>
<TABLE>
<CAPTION>
SHAREHOLDER AND FUND EXPENSES<F1>
- ------------------------------------------------------------------------------------------------------------
SHAREHOLDER TRANSACTION EXPENSES
<S>                                                                                                  <C>
  Sales Charges Imposed on Purchases of Shares                                                       None
  Sales Charges Imposed on Reinvested Distributions                                                  None
  Fees to Exchange Shares                                                                            None
  Contingent Deferred Sales Charges Imposed on Redemptions During the First Year                     1.00%
     (as a percentage of redemption proceeds exclusive of all reinvestments and capital
     appreciation in the account)<F2>

ANNUAL FUND AND ALLOCATED PORTFOLIO OPERATING EXPENSES<F3>
  (as a percentage of average daily net assets)
  Investment Adviser Fee                                                                             0.74%
  Rule 12b-1 Distribution (and Service) Fees                                                         1.00%
  Other Expenses (including Interest and Securities Lending                                          0.98%
    Expenses of 0.57%)
                                                                                                     -----
Total Operating Expenses                                                                             2.72%
                                                                                                     =====

EXAMPLE<F3>:                                                                        1 YEAR     3 YEARS     5 YEARS    10 YEARS
- -----------                                                                         ------     -------     -------     --------
An investor  would pay the following  expenses  (including a contingent  deferred
  sales charge in the case of redemption  during the first year after  purchase)
  on a $1,000 investment, assuming (a) 5% annual return and (b) redemption at
  the end of each period:                                                             $38        $84         $144        $305
An investor would pay the following expenses on the same investment,
  assuming (a) 5% return and (b) no redemptions:                                      $28        $84         $144        $305

Notes:
<FN>
<F1>The purpose of the above table and Example is to  summarize  the  aggregate  expenses of the Fund and the  Portfolio  and to
    assist  investors  in  understanding  the  various  costs and  expenses  that  investors  in the Fund will bear  directly or
    indirectly.  The Trustees of the Trust believe that over time the aggregate per share expenses of the Fund and the Portfolio
    should be approximately  equal to, or less than, the per share expenses which the Fund would incur if the Trust retained the
    services of an investment  adviser and the assets of the Fund were invested directly in the type of securities being held by
    the Portfolio.  The percentages  indicated as Annual Fund and Allocated  Portfolio  Operating  Expenses in the table and the
    amounts  included in the Example are based on the Fund's and the Portfolio's  results for the fiscal year ended December 31,
    1994. The Example should not be considered a representation of past or future expenses and actual expenses may be greater or
    less than those shown.  The Example  assumes a 5% annual  return and the Fund's actual  performance  may result in an annual
    return greater or less than 5%. For further  information  regarding the expenses of both the Fund and the Portfolio see "The
    Fund's Financial Highlights",  "Organization of the Fund and the Portfolio",  "Management of the Fund and the Portfolio" and
    "How to Redeem Fund  Shares."  Because the Fund makes  payments  under its  Distribution  Plan adopted  under Rule 12b-1,  a
    long-term shareholder may pay more than the economic equivalent of the maximum front-end sales charge permitted by a rule of
    the National Association of Securities Dealers, Inc. See "Distribution Plan".
<F2>The  contingent  deferred  sales charge is imposed on the  redemption  of shares  purchased on or after January 30, 1995. No
    contingent  deferred  sales charge is imposed on (a) shares  purchased  more than one year prior to  redemption,  (b) shares
    acquired through the reinvestment of distributions or (c) any appreciation in value of other shares in the account (see "How
    to Redeem Fund  Shares"),  and no such charge is imposed on  exchanges  of Fund shares for shares of one or more other funds
    listed under "The Eaton Vance Exchange Privilege".
<F3>The computation of Annual Fund and Allocated Portfolio Operating Expenses as a percentage of average daily net assets in the
    above table and of contingent  deferred sales charges and expenses  incurred on a $1,000  investment in the above Example is
    based in part on interest  expense  allocated to the Fund from the Portfolio's  borrowings and lending fees allocated to the
    Fund from the  Portfolio's  securities  lending  activities  during the fiscal year ended December 31, 1994. The Portfolio's
    borrowings,  interest expense, securities lending activities and lending fees will vary from year to year (see "How the Fund
    and the Portfolio Invest Their Assets -- Active Management Strategies"). If the Fund had not been allocated interest expense
    and lending fees in 1994,  its Total  Operating  Expenses as a percentage of average daily net assets would have been 2.15%,
    and contingent  deferred sales charges and expenses incurred on a $1,000 investment for one, three, five and ten years would
    have been $32, $67, $115 and $248, respectively (assuming redemption) and $22, $67, $115 and $248, respectively (assuming no
    redemption).
<F4>Other investment companies with different  distribution  arrangements and fees are investing in the Portfolio and additional
    such companies may do so in the future. See "Organization of the Fund and the Portfolio".
    
</TABLE>

<PAGE>
THE FUND'S FINANCIAL HIGHLIGHTS
- ------------------------------------------------------------------------------
   

The  following  information  should  be read in  conjunction  with  the  audited
financial statements included in the Statement of Additional Information, all of
which have been so  included  in  reliance  upon the report of Coopers & Lybrand
L.L.P.,  independent  accountants,  as experts in accounting and auditing, which
report  is  contained  in  the  Statement  of  Additional  Information.  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 Principal Underwriter.

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

                                                      Year Ended December 31,
                                                      -----------------------
                                                       1994          1993<F1>
                                                       ----          ----
NET ASSET VALUE                                     $  9.9400     $ 10.0000
                                                     --------      --------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income                               $  0.6264     $  0.1067
Net realized and unrealized gain/                     
 (loss) on investments                                (0.8763)      (0.0514)
                                                     --------       --------
Total income/ (loss) from investment operations     $ (0.2499)    $  0.0553
                                                     ========       ========
LESS DISTRIBUTIONS:
From net investment income                          $ (0.6264)    $ (0.1067)
In excess of net investment income                    (0.0837)      (0.0086)
                                                     --------      ---------
Total distributions                                 $ (0.7101)    $ (0.1153)
                                                     --------      ---------
NET ASSET VALUE -- End of period                    $  8.9800     $  9.9400
                                                     ========       =========
TOTAL RETURN<F3>                                        (2.54)%       0.34%
RATIOS/SUPPLEMENTAL DATA:
Ratio of interest expense to average
 daily net assets<F4>                                    0.57%        0.54%<F2>
Ratio of other expenses to average
 daily net assets<F4>                                    2.15%        2.31%<F2>
Ratio of net investment income to average
 daily net assets                                        6.60%        5.45%<F2>
NET ASSETS AT END OF PERIOD (000's omitted)          $ 39,586     $ 17,441

[FN]
<F1>For the period from the start of business, November 1, 1993, to December 31,
    1993.
<F2>Computed on an annualized basis.
<F3>Total return is calculated assuming a purchase at the net asset value on the
    first day and a sale at the net asset  value on the last day of each  period
    reported. Dividends and distributions,  if any, are assumed to be reinvested
    at the net asset value on the payable date.
<F4>Includes the Fund's share of Government  Obligations  Portfolio's  allocated
    expenses.
    


<PAGE>
THE FUND'S INVESTMENT OBJECTIVE
- ------------------------------------------------------------------------------
   
EV CLASSIC GOVERNMENT  OBLIGATIONS  FUND'S INVESTMENT  OBJECTIVE IS TO REALIZE A
HIGH CURRENT RETURN.  The Fund currently seeks to meet its investment  objective
by investing  its assets in the  Government  Obligations  Portfolio,  a separate
registered  investment  company  which  has the same  investment  objective  and
policies as the Fund. The Fund's and the Portfolio's  investment  objectives are
nonfundamental  and may be changed when  authorized by a vote of the Trustees of
the Trust or the Portfolio,  respectively, without obtaining the approval of the
Fund's  shareholders or the investors in the Portfolio,  as the case may be. The
Trustees of the Trust have no present  intention to change the Fund's  objective
and intend to submit any proposed material change in the investment objective to
shareholders in advance for their approval.

HOW THE FUND AND THE PORTFOLIO INVEST THEIR ASSETS
- ------------------------------------------------------------------------------
IN SEEKING HIGH CURRENT  RETURN,  THE PORTFOLIO  INVESTS IN  SECURITIES  ISSUED,
GUARANTEED OR OTHERWISE BACKED BY THE U.S. GOVERNMENT, INCLUDING MORTGAGE-BACKED
SECURITIES OF FEDERAL AGENCIES AND FEDERALLY CHARTERED CORPORATIONS, AND ENGAGES
IN ACTIVE  MANAGEMENT  STRATEGIES,  INCLUDING  FUTURES  TRANSACTIONS AND RELATED
TECHNIQUES PRIMARILY FOR HEDGING PURPOSES.  The Portfolio's  management believes
that a high  current  return  may be  derived  from  yields  on U.S.  Government
securities,  including  market discount  accrued on obligations  purchased below
their stated redemption value.

U.S. GOVERNMENT SECURITIES. U.S. Government securities include (1) U.S. Treasury
obligations,  which  differ in their  interest  rates,  maturities  and times of
issuance:  U.S.  Treasury bills  (maturities of one year or less), U.S. Treasury
notes  (maturities  of one to ten  years)  and U.S.  Treasury  bonds  (generally
maturities of greater than ten years) and (2)  obligations  issued or guaranteed
by U.S. Government agencies and instrumentalities  which are supported by any of
the following: (a) the full faith and credit of the U.S. Treasury, (b) the right
of the issuer to borrow an amount  limited to a specific line of credit from the
U.S. Treasury,  (c) discretionary  authority of the U.S.  Government to purchase
certain  obligations of the U.S. Government agency or instrumentality or (d) the
credit of the agency or  instrumentality.  The  Portfolio may also invest in any
other  security  or  agreement  collateralized  or  otherwise  secured  by  U.S.
Government  securities.  Agencies and  instrumentalities  of the U.S. Government
include but are not limited to:  Federal Land Banks,  Federal  Financing  Banks,
Banks for Cooperatives,  Federal  Intermediate  Credit Banks, Farm Credit Banks,
Federal  Home Loan Banks,  Federal  Home Loan  Mortgage  Corporation  ("FHLMC"),
Federal National Mortgage  Association  ("FNMA"),  Government  National Mortgage
Association ("GNMA"),  Student Loan Marketing Association,  United States Postal
Service, Small Business Administration, Tennessee Valley Authority and any other
enterprise  established  or sponsored by the U.S.  Government.  Because the U.S.
Government   generally   is   not   obligated   to   provide   support   to  its
instrumentalities,  the  Portfolio  will invest in  obligations  issued by these
instrumentalities only if the Investment Adviser determines that the credit risk
with respect to such obligations is minimal.

MORTGAGE-BACKED   SECURITIES.   The  Portfolio  may  invest  in  mortgage-backed
securities that are either issued by the U.S.  Government or one of its agencies
or instrumentalities  or, if privately issued,  collateralized by mortgages that
are insured, guaranteed or otherwise backed by the U.S. Government, its agencies
or  instrumentalities.   Mortgage-backed   securities  represent   participation
interests  in  pools  of  adjustable  and  fixed-rate   mortgage  loans.  Unlike
conventional  debt  obligations,   mortgage-backed  securities  provide  monthly
payments derived from the monthly interest and principal payments (including any
prepayments) made by the individual  borrowers on the pooled mortgage loans. The
mortgage loans underlying  mortgage-backed securities are generally subject to a
greater rate of principal  prepayments in a declining  interest rate environment
and to a lesser rate of principal  prepayments  in an  increasing  interest rate
environment. Under certain interest and prepayment rate scenarios, the Portfolio
may fail to  recover  the  full  amount  of its  investment  in  mortgage-backed
securities,  notwithstanding  any  direct  or  indirect  governmental  or agency
guarantee.  Because faster than expected prepayments must usually be invested in
lower yielding  securities,  mortgage-backed  securities are less effective than
conventional  bonds in  "locking  in" a  specified  interest  rate.  To mitigate
prepayment   risk,   the   Investment   Adviser   considers   the  selection  of
mortgage-backed  securities  that  as a group  have a  history  of  more  stable
prepayment  rates relative to interest rate  fluctuations.  In a rising interest
rate  environment,  a declining  prepayment rate will extend the average life of
many  mortgage-backed  securities.  This  possibility  is often  referred  to as
extension  risk.  Extending  the  average  life  of a  mortgage-backed  security
increases the risk of  depreciation  due to future  increases in market interest
rates. As of December 31, 1994, the Portfolio had  approximately  40% of its net
assets invested in FNMA Mortgage-Backed  Certificates,  approximately 43% of its
net assets invested in Participation  Certificates of FHLMC and approximately 8%
of its net assets  invested in GNMA  Certificates.  FNMA  guarantees  the timely
payment of principal  and interest of its  Certificates,  FHLMC  guarantees  the
timely  payment of interest  and  ultimate  collection  of the  principal of its
Participation  Certificates,  and GNMA  Certificates  are guaranteed by the full
faith and credit of the U.S. Government.

    The  Portfolio  may  also  invest  in  classes  of  collateralized  mortgage
obligations ("CMOs") and various other  mortgage-backed  securities.  Senior CMO
classes will typically have priority over residual CMO classes as to the receipt
of principal and/or interest payments on the underlying  mortgages.  In choosing
among CMO  classes,  the  Investment  Adviser  will  evaluate  the total  income
potential of each class and other factors. If such obligations or securities are
privately issued they will currently be considered by the Investment  Adviser as
possible  investments  for the  Portfolio  only when the mortgage  collateral is
insured, guaranteed or otherwise backed by the U.S. Government or one or more of
its agencies or  instrumentalities.  As of December 31, 1994,  the Portfolio had
approximately  6% of its net assets  invested in CMOs  (including  one which was
privately issued).

    The  Portfolio  may invest in  securities  that  fluctuate  in value with an
index. Such securities generally will either be issued by the U.S. Government or
one of its agencies or instrumentalities or, if privately issued, collateralized
by  mortgages  that are  insured,  guaranteed  or  otherwise  backed by the U.S.
Government,  its agencies or  instrumentalities.  The interest  rate or, in some
cases,  the principal  payable at the maturity of an indexed security may change
positively  or inversely in relation to one or more  interest  rates,  financial
indices,  securities prices or other financial indicators  ("reference prices").
An indexed  security may be  leveraged  to the extent that the  magnitude of any
change in the  interest  rate or principal  payable on an indexed  security is a
multiple of the change in the reference  price.  Thus,  indexed  securities  may
decline  in value due to  adverse  market  changes in  reference  prices.  As of
December  31,   1994,   the   Portfolio   held  no  such   securities.   Because
mortgage-backed   and  indexed   securities  derive  their  value  from  another
instrument,  security or index, they are considered  derivative debt securities,
and are subject to different  combinations  of prepayment,  extension,  interest
rate and/or other market risks.

    The Portfolio may enter into  contracts to purchase  securities  for a fixed
price at a future date beyond the  customary  settlement  time if the  Portfolio
holds and maintains until the settlement date in a segregated account cash, U.S.
Government  securities  and  liquid  high-grade  debt  obligations  in an amount
sufficient  to  meet  the  purchase  price,  or if  the  Portfolio  enters  into
offsetting  contracts  for the forward sale of other  securities  it owns.  Such
contracts are  customarily  referred to as "forward  commitments"  and involve a
risk of loss if the value of the security to be purchased  declines prior to the
settlement date.

    The principal of and/or interest on certain U.S. Government securities which
may be purchased  by the  Portfolio  could be (a) payable in foreign  currencies
rather than U.S.  dollars or (b)  increased or diminished as a result of changes
in the value of the U.S. dollar relative to the value of foreign currencies. The
value of such  portfolio  securities  denominated  in foreign  currencies may be
affected  favorably  or  unfavorably  by changes in the  exchange  rate  between
foreign  currencies and the U.S. dollar.  In order to limit the risk inherent in
this type of security, it is the current policy of the Portfolio not to purchase
any such  security  if after  such  purchase  (i) more than 5% of its net assets
(taken at market value) would be invested in securities  denominated  in foreign
currencies  or (ii) more than 2% of its net assets (taken at market value) would
be invested in securities denominated in any one foreign currency.

    The Portfolio may from time to time have temporary investments in short-term
debt obligations  (including  certificates of deposit,  bankers' acceptances and
commercial  paper)  pending the making of other  investments  or as a reserve to
service redemptions and repurchases of its shares.

ACTIVE MANAGEMENT STRATEGIES
The  Portfolio  may engage in several  active  management  strategies to enhance
income and reduce investment risk. Each strategy requires the Investment Adviser
to consider special factors.

SECURITIES  LENDING.  The  Portfolio  may seek to increase its income by lending
portfolio securities to broker-dealers or other institutional borrowers.  During
the existence of a loan,  the Portfolio  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  Portfolio  may  pay  lending  fees to such
borrowers.  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  Portfolio's  management to be of good standing and
when, in the judgment of the Portfolio's management, the consideration which can
be earned from  securities  loans of this type justifies the attendant risk. The
financial  condition of the borrower will be monitored by the Investment Adviser
on an ongoing basis.  The value of the securities  loaned will not exceed 30% of
the  Portfolio's  total  assets.  During the year ended  December 31, 1994,  the
Portfolio typically had outstanding  approximately $70 million in collateralized
loans with terms of 7 days.

FUTURES CONTRACTS AND OTHER DERIVATIVE  INSTRUMENTS.  The Portfolio may purchase
or sell derivative  instruments  (which are instruments  that derive their value
from  another  instrument,   security,  index  or  currency)  to  hedge  against
fluctuations in interest rates, securities prices or currency exchange rates, to
change the duration of the Portfolio's fixed income  portfolio,  as a substitute
for the purchase or sale of securities or currency,  or to enhance  return.  The
Portfolio's  transactions in derivative  instruments may include the purchase or
sale of futures contracts on securities,  (such as U.S. Government  securities),
indices,   other  financial   instruments  (such  as  certificates  of  deposit,
Eurodollar  time  deposits,  and  economic  indices) or  currencies;  options on
futures  contracts;  exchange-traded  and  over-the-counter  ("OTC")  options on
securities;  indices or  currencies;  and forward  contracts to purchase or sell
currencies.  All of  the  Portfolio's  transactions  in  derivative  instruments
involve a risk of loss or depreciation due to  unanticipated  adverse changes in
interest rates,  securities  prices or currency exchange rates, the inability to
close out a  position  or default by the  counterparty.  The loss on  derivative
instruments  (other than purchased  options) may exceed the Portfolio's  initial
investment in these instruments.  In addition, the Portfolio may lose the entire
premium paid for  purchased  options that expire  before they can be  profitably
exercised by the Portfolio.  The Portfolio incurs  transaction  costs in opening
and closing positions in derivative instruments.  There can be no assurance that
the Investment  Adviser's use of derivative  instruments will be advantageous to
the Portfolio.

    The Portfolio's  success in using derivative  instruments to hedge portfolio
assets  depends  on the  degree  of price  correlation  between  the  derivative
instrument and the hedged asset.  Imperfect correlation may be caused by several
factors, including temporary price disparities among the trading markets for the
derivative  instrument,  the assets underlying the derivative instrument and the
Portfolio's  assets. OTC derivative  instruments  involve a heightened risk that
the issuer or counterparty will fail to perform its contractual obligations. The
staff  of the  Securities  and  Exchange  Commission  takes  the  position  that
purchased OTC options, assets used as cover for written OTC options, and certain
other derivative instruments (and securities) are subject to the Portfolio's 15%
limit  on  illiquid  investments.  The  Portfolio's  ability  to  terminate  OTC
derivative  instruments may depend on the cooperation of the  counterparties  to
such  instruments.  For thinly traded derivative  securities and contracts,  the
only source of price quotations may be the selling dealer or counterparty.

    To the extent that the Portfolio enters into futures  contracts,  options on
futures  contracts  and  options on  foreign  currencies  traded on an  exchange
regulated by the Commodity  Futures Trading  Commission  ("CFTC"),  in each case
that are not for bona fide  hedging  purposes  (as  defined  by the  CFTC),  the
aggregate  initial  margin and premiums  required to establish  these  positions
(excluding the amount by which options are  "in-the-money") may not exceed 5% of
the liquidation  value of the Portfolio's  portfolio,  after taking into account
unrealized  profits and  unrealized  losses on any  contracts  the Portfolio has
entered into.

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  Portfolio  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 fixed-income  securities or changes in the investment
objectives of investors.

MORTGAGE  ROLLS.  The Portfolio may enter into mortgage  "dollar rolls" in which
the Portfolio sells mortgage-backed securities for delivery in the current month
and  simultaneously  contracts to repurchase  substantially  similar (same type,
coupon and  maturity)  securities  on a specified  future date.  During the roll
period, the Portfolio forgoes principal and interest paid on the mortgage-backed
securities.  The Portfolio is compensated by the difference  between the current
sales price and the lower forward price for the future  purchase (often referred
to as the "drop") as well as by the interest  earned on the cash proceeds of the
initial sale. A "covered roll" is a specific type of dollar roll for which there
is an offsetting  cash position or a cash  equivalent  security  position  which
matures on or before the forward settlement date of the dollar roll transaction.
The Portfolio will only enter into covered rolls.  Covered rolls are not treated
as a  borrowing  or  other  senior  security  and  will  be  excluded  from  the
calculation of the Portfolio's borrowings and other senior securities.

LEVERAGE THROUGH BORROWING.  The Portfolio may borrow from banks to increase its
portfolio  holdings of debt  securities on which call options may be written and
to acquire  U.S.  Treasury  bills which may be  deposited  with the  Portfolio's
custodian or a broker-dealer in connection with various  Portfolio  investments.
Such borrowings will be unsecured.  The Investment  Company Act of 1940 requires
the Portfolio to maintain  continuous  asset coverage of not less than 300% with
respect  to such  borrowings.  This  allows  the  Portfolio  to borrow  for such
purposes an amount  (when  taken  together  with any  borrowings  for  temporary
extraordinary or emergency  purposes as described below) equal to as much as 50%
of the value of its net assets (not  including such  borrowings).  If such asset
coverage  should decline to less than 300% due to market  fluctuations  or other
reasons,  the Portfolio  may be required to sell some of its portfolio  holdings
within three days in order to reduce the  Portfolio's  debt and restore the 300%
asset  coverage,  even  though  it may be  disadvantageous  from  an  investment
standpoint  to sell  securities at that time.  Leveraging  will  exaggerate  any
increase or decrease in the net asset value of the securities held by Portfolio,
and in that respect may be considered a speculative practice. Money borrowed for
leveraging  will be subject to  interest  costs  which may or may not exceed the
option  premiums  and  interest  received  from the  securities  purchased.  The
Portfolio  may  also  be  required  to  maintain  minimum  average  balances  in
connection  with such borrowings or to pay a commitment or other fee to maintain
a line of  credit;  either  of these  requirements  would  increase  the cost of
borrowing over the stated interest rate.

REPURCHASE  AGREEMENTS.  The Portfolio may enter into repurchase agreements with
respect to U.S. Government securities.  Under a repurchase agreement, the seller
agrees to  repurchase  such  securities  at the  Portfolio's  cost plus interest
within a specified time (normally one day). While repurchase  agreements involve
certain  risks  not  associated  with  direct  investments  in  U.S.  Government
securities,  the Portfolio follows  procedures  designed to moderate such risks.
These procedures  include  effecting  repurchase  transactions  only with large,
well-capitalized  banks. In addition, the Portfolio's repurchase agreements will
provide that the value of the collateral  underlying  the repurchase  agreements
will always be at least equal to the  repurchase  price,  including  any accrued
interest  earned on the  repurchase  agreement.  In the  event of a  default  or
bankruptcy  by a  selling  bank,  the  Portfolio  will  seek to  liquidate  such
collateral.  However,  the exercise of the  Portfolio's  right to liquidate such
collateral  would  involve  certain  costs or delays  and,  to the  extent  that
proceeds from any sale upon a default of the  obligation to repurchase  are less
than the repurchase price, the Portfolio could suffer a loss.

ADDITIONAL INVESTMENT INFORMATION
The Portfolio expects that various new types of investments,  hedging techniques
and management  strategies will be developed and made available to institutional
investors  in the future.  The  Investment  Adviser  will  consider  making such
investments or adopting such techniques or strategies if it determines that they
are  consistent  with the  Portfolio's  investment  objective and  policies.  Of
course, the total mix of the Portfolio's investments can change daily.

FLUCTUATIONS  IN VALUE.  Because  interest  yields on U.S.  Government and other
securities and  opportunities  to realize  additional  income and net gains from
active  management  strategies  will vary from time to time  because  of general
economic and market conditions and many other factors, the Fund's current return
will fluctuate,  and there can be no assurance that the Fund's objective will be
achieved.  As a result of their high credit quality and market  liquidity,  U.S.
Government  securities generally provide a lower current return than obligations
of other issuers.  As with other debt securities,  the value of U.S.  Government
securities  changes as interest rates  fluctuate.  Fluctuations  in the value of
securities  held by the Portfolio  will not affect  interest  income on existing
portfolio  securities but will be reflected in the Fund's net asset value. Thus,
a decrease in interest rates will  generally  result in an increase in the value
of Fund shares.  Conversely,  during periods of rising interest rates, the value
of Fund shares will generally decline.  The magnitude of these fluctuations will
generally be greater at times when the Portfolio's  average  maturity is longer.
In addition,  as set forth above,  the  derivative  securities the Portfolio may
hold may  magnify  those  risks and pose  additional  risks.  Active  management
techniques,  if  successful,  may only partly offset these risks.  Shares of the
Fund are not government guaranteed.

INVESTMENT  RESTRICTIONS.  The  Fund  and the  Portfolio  have  adopted  certain
fundamental  investment  restrictions  which  are  enumerated  in  detail in the
Statement  of  Additional  Information  and  which  may  not be  changed  unless
authorized  by a  shareholder  vote and an investor  vote,  respectively.  These
restrictions are designed to reduce  investment risk. Except for such enumerated
restrictions,  the  investment  objective  and  policies  of the  Fund  and  the
Portfolio are not  fundamental  policies,  and accordingly may be changed by the
Trustees of the Trust and the  Portfolio  without  obtaining the approval of the
Fund's  shareholders  or the investors in the Portfolio,  as the case may be. If
any changes were made in the Fund's investment objective, the Fund might have an
investment  objective  different from the objective which an investor considered
appropriate at the time the investor became a shareholder of the Fund.
    



ORGANIZATION OF THE FUND AND THE PORTFOLIO
- ------------------------------------------------------------------------------
   
THE FUND IS A DIVERSIFIED SERIES OF EATON VANCE GOVERNMENT  OBLIGATIONS TRUST, A
BUSINESS TRUST ESTABLISHED UNDER  MASSACHUSETTS LAW PURSUANT TO A DECLARATION OF
TRUST DATED MAY 7, 1984, AS AMENDED AND  RESTATED.  THE TRUST IS A MUTUAL FUND -
AN  OPEN-END  MANAGEMENT  INVESTMENT  COMPANY.  The  Trustees  of the  Trust are
responsible for the overall management and supervision of its affairs. The Trust
may issue an unlimited number of shares of beneficial interest (no par value per
share) in one or more  series and because  the Trust can offer  separate  series
(such as the Fund) it is known as a "series  company." Each share  represents an
equal   proportionate   beneficial   interest  in  the  Fund.  When  issued  and
outstanding,  the  shares  are  fully  paid and  nonassessable  by the Trust and
redeemable  as described  under "How to Redeem Fund  Shares".  Shareholders  are
entitled  to one vote for each full share held.  Fractional  shares may be voted
proportionately.  Shares have no preemptive or conversion  rights and are freely
transferable.  In the event of the  liquidation  of the Fund,  shareholders  are
entitled  to  share  pro  rata in the  net  assets  of the  Fund  available  for
distribution to shareholders.
    

    THE  PORTFOLIO  IS  ORGANIZED  AS A TRUST UNDER THE LAWS OF THE STATE OF NEW
YORK AND INTENDS TO BE TREATED AS A PARTNERSHIP  FOR FEDERAL TAX  PURPOSES.  The
Portfolio,  as well as the Trust,  intends to comply with all applicable Federal
and state  securities  laws. The Portfolio's  Declaration of Trust provides that
the Fund and other entities  permitted to invest in the Portfolio  (e.g.,  other
U.S. and foreign  investment  companies,  and common and commingled trust funds)
will each be liable for all obligations of the Portfolio.  However,  the risk of
the Fund  incurring  financial  loss on account of such  liability is limited to
circumstances in which both inadequate insurance exists and the Portfolio itself
is  unable  to meet its  obligations.  Accordingly,  the  Trustees  of the Trust
believe that neither the Fund nor its shareholders will be adversely affected by
reason of the Fund investing in the Portfolio.


   
SPECIAL INFORMATION ON THE FUND/PORTFOLIO  INVESTMENT STRUCTURE.  An investor in
the Fund  should be aware that the Fund,  unlike  mutual  funds  which  directly
acquire and manage  their own  portfolios  of  securities,  seeks to achieve its
investment  objective  by investing  its assets in an interest in the  Portfolio
(although the Fund may temporarily hold a de minimus amount of cash), which is a
separate investment company with an identical investment  objective.  Therefore,
the Fund's  interest in the  securities  owned by the Portfolio is indirect.  In
addition to selling an interest to the Fund, the Portfolio may sell interests to
other affiliated and  non-affiliated  mutual funds or  institutional  investors.
Such investors will invest in the Portfolio on the same terms and conditions and
will pay a proportionate share of the Portfolio's  expenses.  However, the other
investors  investing in the  Portfolio  are not required to sell their shares at
the  same  public  offering  price  as the  Fund  due  to  variations  in  sales
commissions  and other  operating  expenses.  Therefore,  investors  in the Fund
should be aware that these  differences  may  result in  differences  in returns
experienced by investors in the various funds that invest in the Portfolio. Such
differences  in  returns  are also  present  in other  mutual  fund  structures,
including funds that have multiple classes of shares. For information  regarding
the investment objective, policies and restrictions,  see "The Fund's Investment
Objective"  and "How the Fund and the Portfolio  Invest their  Assets".  Further
information  regarding  investment  practices  may be found in the  Statement of
Additional Information.


    The Trustees of the Trust have  considered the advantages and  disadvantages
of investing the assets of the Fund in the Portfolio,  as well as the advantages
and  disadvantages  of the  two-tier  format.  The  Trustees  believe  that  the
structure  offers  opportunities  for  substantial  growth in the  assets of the
Portfolio,  and affords the  potential  for  economies of scale for the Fund, at
least when the assets of the Portfolio exceed $500 million.


    The Fund may withdraw  (completely redeem) all its assets from the Portfolio
at any time if the Board of Trustees of the Trust  determines  that it is in the
best  interest  of  the  Fund  to  do  so.  The  investment  objective  and  the
nonfundamental  investment policies of the Fund and the Portfolio may be changed
by the Trustees of the Trust and the Portfolio without obtaining the approval of
the shareholders of the Fund or the investors in the Portfolio,  as the case may
be. Any such change of the  investment  objective  of the Fund or the  Portfolio
will be preceded by thirty days' advance  written notice to the  shareholders of
the Fund or the investors in the Portfolio, as the case may be. If a shareholder
redeems  shares  within  one year of their  purchase  because of a change in the
nonfundamental objective or policies of the Fund, those shares may be subject to
a contingent  deferred sales charge as described in "How to Redeem Fund Shares."
In the event the Fund  withdraws  all of its assets from the  Portfolio,  or the
Board of Trustees of the Trust  determines that the investment  objective of the
Portfolio is no longer  consistent  with the  investment  objective of the Fund,
such Trustees would consider what action might be taken, including investing the
assets  of the  Fund  in  another  pooled  investment  entity  or  retaining  an
investment adviser to manage the Fund's assets in accordance with its investment
objective.  The Fund's investment performance may be affected by a withdrawal of
all its assets from the Portfolio.


    Information regarding other pooled investment entities or funds which invest
in the Portfolio may be obtained by contacting  Eaton Vance  Distributors,  Inc.
(the "Principal  Underwriter" or "EVD"),  24 Federal Street,  Boston,  MA 02110,
(617) 482-8260.  Smaller investors in the Portfolio may be adversely affected by
the  actions of larger  investors  in the  Portfolio.  For  example,  if a large
investor  withdraws from the Portfolio,  the remaining  investors may experience
higher  pro  rata  operating   expenses,   thereby   producing   lower  returns.
Additionally,  the  Portfolio  may become less  diverse,  resulting in increased
portfolio  risk, and experience  decreasing  economies of scale.  However,  this
possibility exists as well for historically structured funds which have large or
institutional investors.
    

    Until  recently,  the  Administrator   sponsored  and  advised  historically
structured funds. Funds which invest all their assets in interests in a separate
investment  company are a relatively new development in the mutual fund industry
and,  therefore,  the  Fund  may  be  subject  to  additional  regulations  than
historically structured funds.


   
    The  Declaration of Trust of the Portfolio  provides that the Portfolio will
terminate  120 days  after  the  complete  withdrawal  of the Fund or any  other
investor in the Portfolio,  unless either the remaining investors,  by unanimous
vote at a meeting  of such  investors,  or a  majority  of the  Trustees  of the
Portfolio,  by  written  instrument  consented  to by all  investors,  agree  to
continue the  business of the  Portfolio.  This  provision  is  consistent  with
treatment of the Portfolio as a partnership for Federal income tax purposes. See
"Distributions  and  Taxes" for  further  information.  Whenever  the Fund as an
investor in the  Portfolio  is requested  to vote on matters  pertaining  to the
Portfolio (other than the termination of the Portfolio's business,  which may be
determined by the Trustees of the Portfolio without investor approval), the Fund
will hold a meeting  of Fund  shareholders  and will  vote its  interest  in the
Portfolio for or against such matters  proportionately  to the  instructions  to
vote for or against such matters received from Fund shareholders. The Fund shall
vote shares for which it receives no voting  instructions in the same proportion
as the shares for which it receives voting instructions.  Other investors in the
Portfolio may alone or collectively  acquire  sufficient voting interests in the
Portfolio to control matters  relating to the operation of the Portfolio,  which
may require the Fund to withdraw its  investment  in the Portfolio or take other
appropriate action. Any such withdrawal could result in a distribution "in kind"
of portfolio  securities (as opposed to a cash distribution from the Portfolio).
If securities  are  distributed,  the Fund could incur  brokerage,  tax or other
charges in converting the securities to cash. In addition,  the  distribution in
kind may result in a less  diversified  portfolio  of  investments  or adversely
affect the  liquidity of the Fund.  Notwithstanding  the above,  there are other
means for meeting shareholder redemption requests, such as borrowing.


    The  Trustees  of the  Trust,  including  a  majority  of the  noninterested
Trustees,  have approved written procedures designed to identify and address any
potential  conflicts of interest  arising from the fact that the Trustees of the
Trust and the Trustees of the Portfolio are the same.  Such  procedures  require
each Board to take action to resolve any  conflict of interest  between the Fund
and the Portfolio,  and it is possible that the creation of separate  Boards may
be considered.  For further information  concerning the Trustees and officers of
the Trust and the Portfolio, see the Statement of Additional Information.
    




MANAGEMENT OF THE FUND AND THE PORTFOLIO
- ------------------------------------------------------------------------------
THE PORTFOLIO  ENGAGES BOSTON  MANAGEMENT AND RESEARCH  ("BMR"),  A WHOLLY-OWNED
SUBSIDIARY OF 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.

   
    Acting  under  the  general  supervision  of the  Board of  Trustees  of the
Portfolio,  BMR manages  the  Portfolio's  investments  and  affairs.  Under its
investment  advisory  agreement  with the  Portfolio,  BMR  receives  a  monthly
advisory fee of .0625%  (equivalent  to .75%  annually) of the average daily net
assets of the  Portfolio up to $500  million.  On net assets of $500 million and
over the annual fee is reduced as follows:



                                                           ANNUALIZED FEE RATE
AVERAGE DAILY NET ASSETS FOR THE MONTH                      (FOR EACH LEVEL)
- --------------------------------------                      ----------------
    
$500 million but less than $1 billion ...................        0.6875%
$1 billion but less than $1.5 billion ...................        0.6250%
$1.5 billion but less than $2 billion ...................        0.5625%
$2 billion but less than $3 billion .....................        0.5000%
$3 billion and over .....................................        0.4375%


   
    As at December 31, 1994, the Portfolio had net assets of  $515,669,513.  For
the fiscal year ended  December 31, 1994,  the Portfolio  paid BMR advisory fees
equivalent to .74% of the Portfolio's average daily net assets for such year.

    BMR furnishes  for the use of the  Portfolio  office space and all necessary
office facilities,  equipment and personnel for servicing the investments of the
Portfolio. BMR also places the portfolio transactions of the Portfolio with many
broker-dealer  firms  and uses its best  efforts  to  obtain  execution  of such
transactions at prices which are advantageous to the Portfolio and at reasonably
competitive  commission rates. Subject to the foregoing,  BMR may consider sales
of shares of the Fund or of other investment companies sponsored by BMR or Eaton
Vance as a factor in the selection of broker-dealer  firms to execute  portfolio
transactions.

    Susan Schiff has acted as the portfolio  manager of the  Portfolio  since it
commenced  operations.  She has been a Vice  President of Eaton Vance and of BMR
since 1993.

    BMR OR EATON VANCE ACTS AS INVESTMENT  ADVISER TO  INVESTMENT  COMPANIES AND
VARIOUS  INDIVIDUAL AND  INSTITUTIONAL  CLIENTS WITH ASSETS UNDER  MANAGEMENT OF
APPROXIMATELY  $15 BILLION.  Eaton Vance is a  wholly-owned  subsidiary of Eaton
Vance Corp.,  a publicly held 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.

    The Trust has retained  the services of Eaton Vance to act as  Administrator
of the Fund.  The Trust has not retained the services of an  investment  adviser
since  the  Trust  seeks to  achieve  the  investment  objective  of the Fund by
investing  the Fund's assets in the  Portfolio.  As  Administrator,  Eaton Vance
provides the Fund with general  office  facilities  and  supervises  the overall
administration of the Fund. For these services Eaton Vance currently receives no
compensation.  The  Trustees  of the  Trust may  determine,  in the  future,  to
compensate Eaton Vance for such services.

    The Portfolio and the Fund, as the case may be, will each be responsible for
all of its respective  costs and expenses not expressly  stated to be payable by
BMR  under  the  investment  advisory  agreement,   by  Eaton  Vance  under  the
administrative services agreement, or by EVD under the distribution agreement.

DISTRIBUTION PLAN
- ------------------------------------------------------------------------------
THE FUND FINANCES  DISTRIBUTION  ACTIVITIES AND HAS ADOPTED A DISTRIBUTION  PLAN
(THE "PLAN")  PURSUANT TO RULE 12B-1 UNDER THE  INVESTMENT  COMPANY ACT OF 1940.
Rule 12b-1  permits a mutual  fund,  such as the Fund,  to finance  distribution
activities  and bear expenses  associated  with the  distribution  of its shares
provided  that any payments made by the Fund are made pursuant to a written plan
adopted in  accordance  with the Rule.  The Plan is subject to and complies with
the sales charge rule of the National  Association of Securities  Dealers,  Inc.
(the "NASD Rule").  The Plan is described further in the Statement of Additional
Information,  and the following is a description of the salient  features of the
Plan. The Plan provides that the Fund,  subject to the NASD Rule, will pay sales
commissions and distribution fees to the Principal Underwriter only after and as
a  result  of the  sale of  shares  of the  Fund.  On each  sale of Fund  shares
(excluding  reinvestment  of  distributions)  the Fund  will  pay the  Principal
Underwriter  amounts  representing (i) sales  commissions  equal to 6.25% of the
amount  received  by the Fund for each  share  sold and (ii)  distribution  fees
calculated  by applying the rate of 1% over the prime rate then  reported in The
Wall Street Journal to the outstanding balance of Uncovered Distribution Charges
(as described below) of the Principal Underwriter. On sales of shares made prior
to January 30, 1995,  the  Principal  Underwriter  currently  pays monthly sales
commissions  to a  financial  service  firm (an  "Authorized  Firm") in  amounts
anticipated to be equivalent to .75%,  annualized,  of the assets  maintained in
the Fund by the  customers of such Firm.  On sales of shares made on January 30,
1995 and thereafter,  the Principal  Underwriter  currently expects to pay to an
Authorized  Firm (a) sales  commissions  (except on  exchange  transactions  and
reinvestments)  at the time of sale equal to .75% of the  purchase  price of the
shares  sold by such  Firm,  and (b)  monthly  sales  commissions  approximately
equivalent  to 1/12 of  .75%  of the  value  of  shares  sold by such  Firm  and
remaining  outstanding  for at least one year. The Plan is designed to permit an
investor to purchase Fund shares through an Authorized Firm without incurring an
initial  sales charge and at the same time permit the Principal  Underwriter  to
compensate Authorized Firms in connection with the sale of Fund shares.

    THE NASD  RULE  REQUIRES  THE FUND TO LIMIT  ITS  ANNUAL  PAYMENTS  OF SALES
COMMISSIONS AND DISTRIBUTION FEES TO THE PRINCIPAL  UNDERWRITER TO AN AMOUNT NOT
EXCEEDING  .75% OF THE FUND'S  AVERAGE  DAILY NET ASSETS FOR EACH  FISCAL  YEAR.
Under its Plan, the Fund accrues daily an amount at the rate of 1/365 of .75% of
the Fund's net assets,  and pays such accrued  amounts  monthly to the Principal
Underwriter.  The Plan requires such accruals to be  automatically  discontinued
during  any  period in which  there are no  outstanding  Uncovered  Distribution
Charges under the Plan. Uncovered Distribution Charges are calculated daily and,
briefly, are equivalent to all unpaid sales commissions and distribution fees to
which the Principal  Underwriter  is entitled under the Plan less all contingent
deferred sales charges theretofore paid to the Principal Underwriter.  The Eaton
Vance organization may be considered to have realized a profit under the Plan if
at any point in time the aggregate amounts of all payments made to the Principal
Underwriter  pursuant  to the Plan,  including  any  contingent  deferred  sales
charges,   have  exceeded  the  total  expenses  theretofore  incurred  by  such
organization in distributing shares of the Fund. Total expenses for this purpose
will include an allocable portion of the overhead costs of such organization and
its branch offices.

    Because of the NASD Rule  limitation on the amount of sales  commissions and
distribution  fees paid to the Principal  Underwriter  during any fiscal year, a
high  level of sales of Fund  shares  during  the  initial  years of the  Fund's
operations would cause a large portion of the sales commissions  attributable to
a sale of Fund  shares  to be  accrued  and  paid by the  Fund to the  Principal
Underwriter  in fiscal  years  subsequent  to the year in which such shares were
sold.  This  spreading  of sales  commissions  payments  under  the Plan over an
extended  period  would  result  in the  incurrence  and  payment  of  increased
distribution  fees under the Plan.  For the fiscal year ended December 31, 1994,
the Fund paid or accrued sales  commissions under the Plan equivalent to .75% of
the Fund's  average daily net assets for such year. As at December 31, 1994, the
outstanding   Uncovered   Distribution  Charges  of  the  Principal  Underwriter
calculated under the Plan amounted to approximately $5,572,000 (which amount was
equivalent to 14.08% of the Fund's net assets on such day).

    THE PLAN ALSO  AUTHORIZES  THE FUND TO MAKE  PAYMENTS OF SERVICE FEES TO THE
PRINCIPAL  UNDERWRITER,  AUTHORIZED  FIRMS  AND OTHER  PERSONS  IN  AMOUNTS  NOT
EXCEEDING  .25% OF THE FUND'S AVERAGE DAILY NET ASSETS FOR EACH FISCAL YEAR. The
Trustees of the Trust have initially  implemented  the Plan by  authorizing  the
Fund to make  monthly  service fee  payments  to the  Principal  Underwriter  in
amounts not expected to exceed .25% of the Fund's  average  daily net assets for
any fiscal year.  The Fund accrues the service fee daily at the rate of 1/365 of
.25% of the  Fund's net  assets.  On sales of shares  made prior to January  30,
1995, the Principal  Underwriter currently makes monthly service fee payments to
an Authorized Firm in amounts anticipated to be equivalent to .25%,  annualized,
of the assets  maintained in the Fund by the customers of such Firm. On sales of
shares  made on January  30,  1995 and  thereafter,  the  Principal  Underwriter
currently  expects to pay to an  Authorized  Firm (a) a service  fee  (except on
exchange  transactions and  reinvestments)  at the time of sale equal to .25% of
the purchase price of the shares sold by such Firm, and (b) monthly service fees
approximately  equivalent  to 1/12 of .25% of the value of  shares  sold by such
Firm and  remaining  outstanding  for at least one year.  During  the first year
after a purchase  of Fund  shares,  the  Principal  Underwriter  will retain the
service fee as reimbursement  for the service fee payment made to the Authorized
Firm at the  time of sale.  As  permitted  by the NASD  Rule,  all  service  fee
payments are made for personal  services  and/or the  maintenance of shareholder
accounts.  Service fees are separate and distinct from the sales commissions and
distribution fees payable by the Fund to the Principal Underwriter,  and as such
are not  subject  to  automatic  discontinuance  when  there are no  outstanding
Uncovered Distribution Charges of the Principal Underwriter. For the fiscal year
ended  December 31, 1994,  the Fund paid or accrued  service fees under the Plan
equivalent to .25% of the Fund's average daily net assets for such year.
    

    The  Principal  Underwriter  may,  from  time to time,  at its own  expense,
provide  additional  incentives  to  Authorized  Firms which  employ  registered
representatives  who sell a minimum  dollar  amount of the Fund's  shares and/or
shares  of  other  funds  distributed  by the  Principal  Underwriter.  In  some
instances,  such additional incentives may be offered only to certain Authorized
Firms whose  representatives are expected to sell significant amounts of shares.
In  addition,  the  Principal  Underwriter  may from  time to time  increase  or
decrease the sales commissions payable to Authorized Firms.

    The Fund may, in its absolute discretion,  suspend, discontinue or limit the
offering  of its shares at any time.  In  determining  whether  any such  action
should be taken, the Fund's management intends to consider all relevant factors,
including  without  limitation the size of the Fund, the investment  climate and
market  conditions,  the volume of sales and  redemptions of Fund shares and the
amount of Uncovered Distribution Charges of the Principal Underwriter.  The Plan
may  continue in effect and payments  may be made under the Plan  following  any
such  suspension,  discontinuance  or limitation of the offering of Fund shares;
however,  the Fund is not  contractually  obligated to continue the Plan for any
particular period of time.  Suspension of the offering of Fund shares would not,
of course, affect a shareholder's ability to redeem shares.

   
VALUING FUND SHARES
- ------------------------------------------------------------------------------
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  (normally  4:00 p.m.  New York  time).  The Fund's net asset value per
share  is  determined  by IBT Fund  Services  (Canada)  Inc.,  a  subsidiary  of
Investors  Bank  &  Trust  Company  ("IBT"),  the  Fund's  and  the  Portfolio's
custodian,  (as agent for the Fund) in the manner  authorized by the Trustees of
the Trust. Net asset value is computed by dividing the value of the Fund's total
assets, less its liabilities,  by the number of shares outstanding.  Because the
Fund  invests its assets in an interest in the  Portfolio,  the Fund's net asset
value will  reflect the value of its interest in the  Portfolio  (which in turn,
reflects the underlying value of the Portfolio's assets and liabilities).

    Authorized  Firms must  communicate  an  investor's  order to the  Principal
Underwriter  prior to the close of the Principal  Underwriter's  business day to
receive that day's net asset value per Fund share.  It is the Authorized  Firms'
responsibility to transmit orders promptly to the Principal  Underwriter,  which
is a wholly-owned subsidiary of Eaton Vance.

    The  Portfolio's  net  asset  value is also  determined  as of the  close of
regular trading on the Exchange by IBT Fund Services (Canada) Inc. (as agent for
the Portfolio) in the manner  authorized by the Trustees of the  Portfolio.  Net
asset value is computed by subtracting the liabilities of the Portfolio from the
value of its total assets.  Mortgage-backed "pass-through" securities are valued
through use of a matrix  pricing  system which takes into  account  closing bond
valuations, yield differentials, anticipated prepayments and interest rates. For
further  information  regarding the  valuation of the  Portfolio's  assets,  see
"Determination  of Net Asset Value" in the Statement of Additional  Information.
Eaton Vance Corp. owns 77.3% of the outstanding stock of IBT, the Fund's and the
Portfolio's custodian.

SHAREHOLDERS  MAY DETERMINE THE VALUE OF THEIR  INVESTMENT  BY  MULTIPLYING  THE
NUMBER OF FUND SHARES OWNED BY THE CURRENT NET ASSET VALUE PER SHARE.
    
                                                                            
HOW TO BUY FUND SHARES
- ------------------------------------------------------------------------------
SHARES OF THE FUND MAY BE PURCHASED  FOR CASH OR MAY BE ACQUIRED IN EXCHANGE FOR
SECURITIES.  Investors may purchase shares of the Fund through  Authorized Firms
at the net asset value per share of the Fund next  determined  after an order is
effective.  The Fund may  suspend  the  offering  of  shares at any time and may
refuse any order for the purchase 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 (the  "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  Automated  Investing
accounts, which may be established with an investment of $50 or more. See "Eaton
Vance Shareholder Services".

    In connection with employee benefit or other continuous group purchase plans
under which the average initial  purchase by a participant of the plan is $1,000
or more, the Fund may accept initial investments of less than $1,000 on the part
of an individual participant. In the event a shareholder who is a participant of
such a plan  terminates  participation  in the plan,  his or her shares  will be
transferred  to a regular  individual  account.  However,  such  account will be
subject to the right of redemption by the Fund as described under "How to Redeem
Fund Shares."

ACQUIRING  FUND SHARES IN EXCHANGE FOR  SECURITIES.  IBT, as escrow agent,  will
receive securities acceptable to Eaton Vance, as Administrator,  in exchange for
Fund shares at their net asset value as determined  above.  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 net asset value per
Fund  share  on the day  such  proceeds  are  received.  Eaton  Vance  will  use
reasonable  efforts to obtain the then current market price for such  securities
but does not guarantee  the best  available  price.  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 EV Classic Government Obligations Fund

    IN THE CASE OF PHYSICAL DELIVERY:

   
        Investors Bank & Trust Company
        Attention: EV Classic Government Obligations Fund
        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,  must 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
or her tax adviser with respect to the particular  Federal,  state and local tax
consequences of exchanging securities for Fund shares.

IF YOU DON'T HAVE AN AUTHORIZED FIRM, EATON VANCE CAN RECOMMEND ONE.
                                                                       
   
HOW TO REDEEM FUND SHARES
- ------------------------------------------------------------------------------
A SHAREHOLDER MAY REDEEM FUND SHARES BY DELIVERING TO THE  SHAREHOLDER  SERVICES
GROUP, INC.,  BOS725,  P.O. BOX 1559, BOSTON,  MASSACHUSETTS  02104,  during its
business hours a written  request for  redemption in good order,  plus any share
certificates  with executed stock powers.  The redemption price will be based on
the net asset value per Fund share next computed after such delivery. Good order
means that all  relevant  documents  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  and  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 in good order by The
Shareholder Services Group, Inc., 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 applicable  contingent  deferred sales charge  (described  below) and any
Federal income tax required to be withheld.  Although the Fund normally  expects
to make payment in cash for redeemed  shares,  the Trust,  subject to compliance
with applicable regulations,  has reserved the right to pay the redemption price
of shares of the Fund, either totally or partially, by a distribution in kind of
readily  marketable  securities  withdrawn by the Fund from the  Portfolio.  The
securities so distributed would be valued pursuant to the Portfolio's  valuation
procedures.  If a shareholder  received a distribution  in kind, the shareholder
could incur brokerage or other charges in converting the securities to cash.
    

    To sell  shares at their net  asset  value  through  an  Authorized  Firm (a
repurchase),  a  shareholder  can place a repurchase  order with the  Authorized
Firm,  which may  charge a fee.  The value of such  shares is based upon the net
asset value calculated after EVD, as the Fund's agent, receives the order. It is
the Authorized Firm's  responsibility to transmit promptly  repurchase orders to
EVD.  Throughout this  Prospectus,  the word  "redemption" is generally meant to
include a repurchase.

    If  shares  were  recently  purchased,  the  proceeds  of a  redemption  (or
repurchase) will not be sent until the check (including a certified or cashier's
check)  received  for the  shares  purchased  has  cleared.  Payment  for shares
tendered for redemption may be delayed up to 15 days from the purchase date when
the purchase check has not yet cleared. Redemptions or repurchases may result in
a taxable gain or loss.

   
    Due to the high cost of maintaining  small  accounts,  the Fund reserves the
right to redeem  accounts  with  balances of less than  $1,000.  Prior to such a
redemption,  shareholders  will  be  given  60  days'  written  notice  to  make
additional  purchases.  Thus, an investor making an initial investment of $1,000
would  not be able to  redeem  shares  without  being  subject  to this  policy.
However,  no such  redemption  would be required by the Fund if the cause of the
low account  balance was a reduction in the net asset value of Fund  shares.  No
contingent   deferred  sales  charge  will  be  imposed  with  respect  to  such
involuntary redemptions.

CONTINGENT DEFERRED SALES CHARGE.  Shares purchased on or after January 30, 1995
and redeemed  within the first year of their purchase  (except  shares  acquired
through  the  reinvestment  of  distributions)  generally  will be  subject to a
contingent  deferred  sales charge.  This  contingent  deferred  sales charge is
imposed on any redemption the amount of which exceeds the aggregate value at the
time of redemption of (a) all shares in the account purchased more than one year
prior  to the  redemption,  (b)  all  shares  in the  account  acquired  through
reinvestment  of  distributions,  and (c) the increase,  if any, of value in the
other shares in the account  (namely those  purchased  within the year preceding
the  redemption)  over  the  purchase  price  of such  shares.  Redemptions  are
processed in a manner to maximize the amount of redemption  proceeds  which will
not be subject to a contingent  deferred sales charge.  That is, each redemption
will be assumed to have been made first from the exempt  amounts  referred to in
clauses (a), (b) and (c) above,  and second through  liquidation of those shares
in the account  referred  to in clause (c) on a  first-in-first  out basis.  Any
contingent  deferred  sales  charge  which is  required  to be  imposed on share
redemptions will be equal to 1% of the net asset value of redeemed shares.

    In calculating  the contingent  deferred sales charge upon the redemption of
Fund shares acquired in an exchange for shares of a fund currently  listed under
"The Eaton Vance Exchange  Privilege,"  the purchase of Fund shares  acquired in
the exchange is deemed to have occurred at the time of the original  purchase of
the exchanged shares.

    No  contingent  deferred  sales  charge will be imposed on Fund shares which
have  been  sold to  Eaton  Vance  or its  affiliates,  or to  their  respective
employees or clients.  The contingent  deferred sales charge will also be waived
for  shares  redeemed  (1)  pursuant  to a  Withdrawal  Plan (see  "Eaton  Vance
Shareholders  Services"),  (2) as part of a distribution  from a retirement plan
qualified under Section 401, 403(b) or 457 of the Internal Revenue Code of 1986,
as amended (the "Code"), or (3) as part of a minimum required  distribution from
other tax-sheltered  retirement plans. The contingent deferred sales charge will
be paid to the Principal Underwriter or the Fund.

REPORTS TO SHAREHOLDERS
- ------------------------------------------------------------------------------
THE  FUND  WILL  ISSUE  TO  ITS  SHAREHOLDERS  SEMI-ANNUAL  AND  ANNUAL  REPORTS
CONTAINING FINANCIAL STATEMENTS. Financial statements included in annual reports
are audited by the Fund's independent accountants. Shortly after the end of each
calendar year, the Fund will furnish all shareholders with information necessary
for preparing Federal and state tax returns.

    
THE LIFETIME INVESTING ACCOUNT/DISTRIBUTION OPTIONS
- ------------------------------------------------------------------------------
AFTER AN INVESTOR MAKES AN INITIAL PURCHASE OF FUND 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.

    At least quarterly,  shareholders  will receive a statement showing complete
details of any transaction and the current balance in the account.  THE LIFETIME
INVESTING  ACCOUNT ALSO PERMITS A SHAREHOLDER TO MAKE ADDITIONAL  INVESTMENTS IN
SHARES BY  SENDING A CHECK FOR $50 OR MORE to The  Shareholder  Services  Group,
Inc.

   
    Any questions  concerning a shareholder's  account or services available may
be directed by telephone to EATON VANCE  SHAREHOLDER  SERVICES at  800-225-6265,
extension 2 or in writing to The Shareholder  Services Group, Inc., BOS725, P.O.
Box 1559, Boston, MA 02104 (please provide the name of the shareholder, the Fund
and the account number).
    

    The  following  distribution  options  will  be  available  to all  Lifetime
Investing  Accounts and may be changed as often as desired by written  notice to
the Fund's dividend  disbursing  agent,  The Shareholder  Services Group,  Inc.,
BOS725,  P.O. Box 1559,  Boston,  MA 02104. The currently  effective option will
appear on each account statement.

    Share Option -- Dividends and capital gains will be reinvested in additional
shares.

    Income Option -- Dividends  will be paid in cash,  and capital gains will be
reinvested in additional shares.

    Cash Option -- Dividends and capital gains will be paid in cash.

   
    The  Share  Option  will  be  assigned  if no  other  option  is  specified.
Distributions,  including those  reinvested,  will be reduced by any withholding
required under Federal income tax laws.
    

    If the Income  Option or Cash  Option  has been  selected,  dividend  and/or
capital gains distribution checks which are returned by the United States Postal
Service as not  deliverable or which remain uncashed for six months or more will
be  reinvested  in the account in shares at the then  current  net asset  value.
Furthermore,  the  distribution  option  on the  account  will be  automatically
changed  to the  Share  Option  until  such  time as the  shareholder  selects a
different option.

DISTRIBUTION  INVESTMENT  OPTION.  In addition to the  distribution  options set
forth above, dividends and/or capital gains may be invested in additional shares
of another Eaton Vance fund. Before selecting this option, a shareholder  should
obtain a prospectus  of the other Eaton Vance fund and  consider its  objectives
and policies carefully.

   
"STREET  NAME"  ACCOUNTS.  If  shares  of the Fund are held in a  "street  name"
account with an Authorized Firm, all recordkeeping,  transaction  processing and
payments of  distributions  relating to the beneficial  owner's  account will be
performed by the Authorized  Firm,  and not by the Fund and its Transfer  Agent.
Since the Fund will have no record of the  beneficial  owner's  transactions,  a
beneficial  owner should  contact the  Authorized  Firm to  purchase,  redeem or
exchange shares, to make changes in or give instructions concerning the account,
or to obtain information about the account.  The transfer of shares in a "street
name" account to an account with another dealer or to an account directly with a
Fund involves special procedures and will require the beneficial owner to obtain
historical  purchase  information  about  the  shares  in the  account  from the
Authorized Firm. 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
IN SHARES BY SENDING A CHECK FOR $50 OR MORE.
    

THE EATON VANCE EXCHANGE PRIVILEGE
- ------------------------------------------------------------------------------

   
Shares of the Fund  currently  may be exchanged  for shares of one or more other
funds in the Eaton Vance  Classic  Group of Funds or Eaton  Vance  Money  Market
Fund, which are distributed  subject to a contingent  deferred sales charge,  on
the  basis of the net  asset  value  per  share of each  fund at the time of the
exchange,  provided that such exchange offers are available only in states where
shares of the fund being acquired may be legally sold.

    Each exchange  must involve  shares which have a net asset value of at least
$1,000. 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.  The Fund 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 Shareholder  Services Group, Inc. makes exchanges at the next determined
net asset value after  receiving an exchange  request in good order (see "How to
Redeem  Fund  Shares").   Consult  The  Shareholder  Services  Group,  Inc.  for
additional  information  concerning  the exchange  privilege.  Applications  and
prospectuses of other funds are available from Authorized Firms or the Principal
Underwriter.  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.

   
    No contingent deferred sales charge is imposed on exchanges. For purposes of
calculating  the contingent  deferred sales charge upon the redemption of shares
acquired  in an  exchange,  the  purchase  of  shares  acquired  in one or  more
exchanges is deemed to have occurred at the time of the original purchase of the
exchanged shares.

    Shares of the other  funds in the Eaton  Vance  Classic  Group of Funds (and
shares of Eaton  Vance Money  Market Fund  acquired as the result of an exchange
from an EV Classic  fund) may be  exchanged  for Fund shares on the basis of the
net asset value per share of each fund at the time of the exchange,  but subject
to any restrictions or qualifications set forth in the current prospectus of any
such fund.

    Telephone  exchanges are accepted by The Shareholder  Services  Group,  Inc.
provided  that  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).  Shares acquired by telephone
exchange must be registered in the same name(s) and with the same address as the
shares being  exchanged.  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 result in a taxable gain or loss.
    

EATON VANCE SHAREHOLDER SERVICES
- ------------------------------------------------------------------------------
THE FUND OFFERS THE FOLLOWING  SERVICES,  WHICH ARE VOLUNTARY,  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, are available from Authorized Firms or 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 EV
Classic  Government  Obligations  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 dividends are reinvested.  The name of the shareholder,  the Fund
and the account number should accompany each investment.

BANK AUTOMATED INVESTING -- FOR REGULAR SHARE ACCUMULATION:  Cash investments of
$50  or  more  may  be  made  automatically  each  month  or  quarter  from  the
shareholder's  bank account.  The $1,000  minimum  initial  investment and small
account redemption policy are waived for these accounts.

    
WITHDRAWAL  PLAN: A shareholder may draw on  shareholdings  systematically  with
monthly or quarterly checks in an aggregate amount that does not exceed annually
12% of the account balance at the time the plan is established. Such amount will
not be subject to a contingent  deferred  sales charge.  See "How to Redeem Fund
Shares". A minimum deposit of $5,000 in shares is required.

   
REINVESTMENT PRIVILEGE: A SHAREHOLDER WHO HAS REPURCHASED OR REDEEMED SHARES MAY
REINVEST,  WITH CREDIT FOR ANY  CONTINGENT  DEFERRED  SALES  CHARGES PAID ON THE
REPURCHASED  OR  REDEEMED  SHARES,  ANY  PORTION  OR ALL OF  THE  REPURCHASE  OR
REDEMPTION PROCEEDS (PLUS THAT AMOUNT NECESSARY TO ACQUIRE A FRACTIONAL SHARE TO
ROUND  OFF THE  PURCHASE  TO THE  NEAREST  FULL  SHARE)  IN  SHARES OF THE FUND,
provided that the  reinvestment is effected within 30 days after such repurchase
or  redemption.  Shares  are  sold  to a  reinvesting  shareholder  at the  next
determined net asset value following  timely receipt of a written purchase order
by the Principal  Underwriter or by the Fund (or by the Fund's Transfer  Agent).
To the extent  that any  shares of the Fund are sold at a loss and the  proceeds
are  reinvested  in shares of the Fund (or other shares of the Fund are acquired
within the period  beginning 30 days before and ending 30 days after the date of
the  redemption)  some or all of the loss generally will not be allowed as a tax
deduction.  Shareholders  should  consult their tax advisers  concerning the tax
consequences of reinvestments.
    

TAX-SHELTERED RETIREMENT PLANS:  Shares of the Fund are available for purchase
in connection with the following tax-sheltered retirement plans:

   
    --Pension  and  Profit   Sharing   Plans  for   self-employed   individuals,
      corporations and non-profit organizations;

    --Individual  Retirement  Account  Plans  for  individuals  and  their  non-
      employed spouses; and

    --403(b) Retirement Plans for employees of public school systems, hospitals,
      colleges and non-profit  organizations meeting certain requirements of the
      Code.
    

    Detailed information concerning these plans, including certain exceptions to
minimum investment requirements,  and copies of the plans are available from the
Principal   Underwriter.   This   information   should  be  read  carefully  and
consultation  with an attorney or tax adviser may be advisable.  The information
sets forth the  service  fee  charged for  retirement  plans and  describes  the
Federal  income  tax  consequences  of  establishing  a plan.  Under all  plans,
dividends  and  distributions  will be  automatically  reinvested  in additional
shares.

   
DISTRIBUTIONS AND TAXES
- ------------------------------------------------------------------------------
SUBSTANTIALLY  ALL  OF THE  INVESTMENT  INCOME  ALLOCATED  TO  THE  FUND  BY THE
PORTFOLIO, LESS THE FUND'S DIRECT AND ALLOCATED EXPENSES, WILL BE DECLARED DAILY
AS A DISTRIBUTION TO FUND  SHAREHOLDERS OF RECORD AT THE TIME OF DECLARATION AND
WILL GENERALLY BE TAXABLE TO SHAREHOLDERS AS ORDINARY  INCOME,  WHETHER TAKEN IN
CASH OR REINVESTED IN ADDITIONAL SHARES.  Such  distributions,  whether taken in
cash  or  reinvested  in  additional  shares,  will  ordinarily  be  paid on the
twenty-second  day of each  month or the next  business  day  thereafter.  Daily
distribution  crediting  will commence on the day that  collected  funds for the
purchase of Fund shares are available at the Transfer Agent.  Distributions from
net short-term  capital gains and certain net foreign exchange gains are taxable
to shareholders as ordinary income, and distributions from net long-term capital
gains are taxable to shareholders as long-term  capital gains,  whether received
in cash or  additional  shares of the Fund and  regardless of the length of time
Fund shares have been owned by the shareholders. Gains or losses attributable to
transactions by the Portfolio in options on securities, certain currency forward
contracts,  futures  contracts  and  options  on  futures  may be treated as 40%
short-term and 60% long-term capital gains or losses, or, in the case of certain
of such transactions relating to foreign currencies,  as ordinary income or loss
for Federal income tax purposes.  The Portfolio may have to limit its activities
in these  transactions in order to enable the Fund to maintain its qualification
as a regulated investment company.

    The amount of the Fund's distributions will vary from time to time depending
on general  economic and market  conditions,  the composition of the Portfolio's
investments, its current investment strategies and the operating expenses of the
Fund and the  Portfolio.  While  distributions  will  vary  from time to time in
response to the factors referred to above, the Fund's management will attempt to
pursue a policy of maintaining a relatively stable monthly  distribution payment
to its shareholders.  The  distributions  paid by the Fund during any particular
period  may be more or less than the  amount of net  investment  income  and net
short-term  capital gain  actually  earned by the Portfolio and allocated to the
Fund during such period.  The Portfolio has elected  mixed  straddle  accounting
under the Code for one or more designated classes of activities  involving mixed
straddles.

    The Portfolio is required to accrue  original  issue discount on zero coupon
and certain other  securities and has elected to accrue market  discount on debt
obligations which are purchased at a market discount. While enhancing the Fund's
current  return,  such accrual will also  accelerate  the Fund's  recognition of
interest  income,  distributions  of which will be taxable as  ordinary  income.
Furthermore,  because the Fund seeks to stabilize monthly distribution  payments
and the Portfolio has elected mixed  straddle  accounting  under the Code, it is
possible that a portion of the Fund's  aggregate  distributions  during any year
will be treated as a return of capital for tax  purposes,  rather  than  taxable
distributions   of  dividends  or  capital  gains.  The  Fund  will  inform  the
shareholders  after  the  end of  each  year  what  portion,  if  any,  of  such
distributions constitutes a return of capital for tax purposes.
    
    Shareholders will receive annually tax information notices and Forms 1099 to
assist in the  preparation  of their Federal and state tax returns for the prior
calendar year's distributions,  proceeds from the redemption or exchange of Fund
shares, and Federal income tax (if any) withheld by the Fund's Transfer Agent.

    In order to qualify as a regulated  investment  company under the Code,  the
Fund must satisfy  certain  requirements  relating to the sources of its income,
the  distribution  of its income,  and the  diversification  of its  assets.  In
satisfying  these  requirements,  the Fund  will  treat  itself  as  owning  its
proportionate  share of each of the  Portfolio's  assets and as  entitled to the
income of the Portfolio properly attributable to such share.

AS A REGULATED  INVESTMENT COMPANY UNDER THE CODE, THE FUND DOES NOT PAY FEDERAL
INCOME OR EXCISE TAXES TO THE EXTENT THAT IT DISTRIBUTES TO SHAREHOLDERS ITS NET
INVESTMENT  INCOME AND NET REALIZED  CAPITAL GAINS IN ACCORDANCE WITH THE TIMING
REQUIREMENTS IMPOSED BY THE CODE. AS A PARTNERSHIP UNDER THE CODE, THE PORTFOLIO
DOES NOT PAY FEDERAL INCOME OR EXCISE TAXES.



   
PERFORMANCE INFORMATION
- ------------------------------------------------------------------------------
FROM TIME TO TIME,  THE FUND MAY ADVERTISE ITS YIELD AND/OR AVERAGE ANNUAL TOTAL
RETURN.  The Fund's  current yield is calculated by dividing the net  investment
income per share during a recent 30-day period by the maximum offering price per
share  (net  asset  value)  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 computing the average annual  percentage change in value of $1,000
invested at the maximum  public  offering  price (net asset value) for specified
periods ending with the most recent calendar quarter,  assuming  reinvestment of
all  distributions.  The  average  annual  total  return  calculation  assumes a
complete  redemption  of the  investment  and the  deduction  of any  applicable
contingent  deferred  sales  charge at the end of the period.  The Fund may also
publish annual and cumulative total return figures from time to time.

    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 (net asset value).  The Fund's  effective  distribution  rate is
computed by dividing the  distribution  rate by the ratio used to annualize  the
most recent monthly distribution and reinvesting the resulting amount for a full
year on the basis of such ratio. 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 debt  obligations  held by the 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 and short-term capital gain actually earned by the Fund during the month.
    

    Performance figures published by the Fund which do not include the effect of
any  applicable  contingent  deferred  sales  charge would be reduced if it were
included.

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

<PAGE>
INVESTMENT ADVISER OF
GOVERNMENT OBLIGATIONS PORTFOLIO
Boston Management and Research
24 Federal Street
Boston, MA 02110

ADMINISTRATOR OF
EV CLASSIC
GOVERNMENT OBLIGATIONS FUND

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
Coopers & Lybrand L.L.P.
One Post Office Square
Boston, MA  02109
    

EV CLASSIC
GOVERNMENT OBLIGATIONS FUND
24 FEDERAL STREET
BOSTON, MA 02110

EV CLASSIC
GOVERNMENT OBLIGATIONS
FUND

PROSPECTUS
MAY 1, 1995

<PAGE>

   

                                    Part A
                     Information Required in a Prospectus

                   EV MARATHON GOVERNMENT OBLIGATIONS FUND

    EV  MARATHON  GOVERNMENT  OBLIGATIONS  FUND (THE  "FUND")  IS A MUTUAL  FUND
SEEKING A HIGH CURRENT RETURN, BY INVESTING IN SECURITIES ISSUED,  GUARANTEED OR
OTHERWISE  BACKED BY THE U.S.  GOVERNMENT  AND  ENGAGING  IN  ACTIVE  MANAGEMENT
STRATEGIES. THE FUND INVESTS ITS ASSETS IN GOVERNMENT OBLIGATIONS PORTFOLIO (THE
"PORTFOLIO"),   A  DIVERSIFIED  OPEN-END  INVESTMENT  COMPANY  HAVING  THE  SAME
INVESTMENT  OBJECTIVE  AS THE FUND,  RATHER  THAN BY DIRECTLY  INVESTING  IN AND
MANAGING ITS OWN PORTFOLIO OF SECURITIES AS WITH HISTORICALLY  STRUCTURED MUTUAL
FUNDS.  THE FUND IS A SERIES OF EATON VANCE  GOVERNMENT  OBLIGATIONS  TRUST (THE
"TRUST").

    Shares of the Fund are not  deposits or  obligations  of, or  guaranteed  or
endorsed  by,  any bank or other  insured  depository  institution,  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.

    This Prospectus is designed to provide you with  information you should know
before investing.  Please retain this document for future reference. A Statement
of Additional  Information  dated May 1, 1995 for the Fund, as supplemented from
time to time, 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. (the "Principal Underwriter",  24 Federal Street, Boston, MA
02110 (telephone (800) 225-6265).  The Portfolio's  Investment Adviser is Boston
Management and Research (the "Investment Adviser"), a wholly-owned subsidiary of
Eaton Vance  Management,  and Eaton Vance Management is the  Administrator  (the
"Administrator")  of the Fund.  The  offices of the  Investment  Adviser and the
Administrator are located at 24 Federal Street, Boston, MA 02110.

    
- ------------------------------------------------------------------------------
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>
                                                   PAGE                                                 PAGE
<S>                                                <C>   <S>                                              <C>
Shareholder and Fund Expenses .....................   2  How to Buy Fund Shares ........................  14
The Fund's Financial Highlights ...................   3  How to Redeem Fund Shares .....................  15
The Fund's Investment Objective ...................   4  Reports to Shareholders .......................  17
How the Fund and the Portfolio Invest                    The Lifetime Investing Account/Distribution
  their Assets ....................................   4    Options .....................................  17
Organization of the Fund and the Portfolio ........   8  The Eaton Vance Exchange Privilege ............  19
Management of the Fund and the Portfolio ..........  11  Eaton Vance Shareholder Services ..............  20
Distribution Plan .................................  12  Distributions and Taxes .......................  21
Valuing Fund Shares ...............................  13  Performance Information .......................  22
- ------------------------------------------------------------------------------------------------------------
                                         PROSPECTUS DATED MAY 1, 1995
    
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
   
SHAREHOLDER AND FUND EXPENSES<F1>
- ---------------------------------------------------------------------------------------------------------------
<S>                                                                                                         <C> 
SHAREHOLDER TRANSACTION EXPENSES
  Sales Charges Imposed on Purchases of Shares                                                              None
  Sales Charges Imposed on Reinvested Distributions                                                         None
  Fees to Exchange Shares                                                                                   None
  Range of Declining Contingent Deferred Sales Charges Imposed on Redemptions During
    the First Seven Years (as a percentage of redemption proceeds exclusive of all
    reinvestments and capital appreciation in the account)<F2>                                             5.00%-0%

ANNUAL FUND AND ALLOCATED PORTFOLIO OPERATING EXPENSES<F3>
  (as a percentage of average daily net assets)
  Investment Adviser Fee                                                                                     0.74%
  Rule 12b-1 Distribution (and Service) Fees                                                                 0.90
  Other Expenses (including Interest and Securities Lending Expenses of 0.60%)                               0.93
                                                                                                             ----
    Total Operating Expenses                                                                                 2.57%
                                                                                                             =====
                                                                                                              
EXAMPLE<F3>:                                                                    1 YEAR     3 YEARS     5 YEARS     10 YEARS
- -----------                                                                    ------     -------     -------     --------
An  investor  would pay the  following  contingent  deferred  sales  charge
and expenses on a $1,000 investment, assuming (a) 5% annual return and (b)
redemption at the end of each time period:                                      $76         $120        $157        $290
An investor would pay the following expenses on the same investment,
assuming (a) 5% annual return and (b) no redemptions:                           $26         $ 80        $137        $290

Notes:
<F1>The purpose of the above table and Example is to summarize the  aggregate  expenses of the Fund and the Portfolio and to
    assist  investors in  understanding  the various  costs and expenses  that  investors in the Fund will bear  directly or
    indirectly.  The  Trustees of the Trust  believe  that over time the  aggregate  per share  expenses of the Fund and the
    Portfolio should be approximately equal to, or less than, the per share expenses which the Fund would incur if the Trust
    retained  the  services  of an  investment  adviser  and the assets of the Fund were  invested  directly  in the type of
    securities  being held by the Portfolio.  The  percentages  indicated as Annual Fund and Allocated  Portfolio  Operating
    Expenses in the table and the amounts  included in the Example are based on the Fund's and the  Portfolio's  results for
    the fiscal year ended December 31, 1994,  except for Service Fees, which are estimated to be 0.15% in the current fiscal
    year.  The Example  should not be  considered a  representation  of past or future  expenses and actual  expenses may be
    greater or less than those shown. The Example assumes a 5% annual return and the Fund's actual performance may result in
    an annual  return  greater or less than 5%. For  further  information  regarding  the  expenses of both the Fund and the
    Portfolio see "The Fund's Financial Highlights",  "Organization of the Fund and the Portfolio",  "Management of the Fund
    and the Portfolio" and "How to Redeem Fund Shares".  Because the Fund makes payments under its Distribution Plan adopted
    under Rule 12b-1,  a long-term  shareholder  may pay more than the economic  equivalent of the maximum  front-end  sales
    charge permitted by a rule of the National Association of Securities Dealers, Inc. See "Distribution Plan".
<F2>No contingent  deferred sales charge is imposed on (a) shares  purchased  more than six years prior to  redemption,  (b)
    shares  acquired  through the  reinvestment  of  distributions  or (c) any  appreciation in value of other shares in the
    account (see "How to Redeem Fund  Shares"),  and no such charge is imposed on exchanges of Fund shares for shares of one
    or more other funds listed under "The Eaton Vance Exchange Privilege".
<F3>The computation of Annual Fund and Allocated Portfolio Operating Expenses as a percentage of average daily net assets in
    the above table and of  contingent  deferred  sales  charges and expenses  incurred on a $1,000  investment in the above
    Example is based in part on interest  expense  allocated to the Fund from the  Portfolio's  borrowings  and lending fees
    allocated to the Fund from the Portfolio's securities lending activities during the fiscal year ended December 31, 1994.
    The Portfolio's borrowings, interest expense, securities lending activities and lending fees will vary from year to year
    (see "How the Fund and the Portfolio  Invest Their Assets -- Active  Management  Strategies").  If the Fund had not been
    allocated  interest  expense and lending fees in 1994,  Total  Operating  Expenses as a percentage  of average daily net
    assets would have been 1.97%,  and contingent  deferred sales charges and expenses  incurred on a $1,000  investment for
    one, three, five and ten years would have been $70, $102, $126 and $230,  respectively (assuming  redemption),  and $20,
    $62, $106 and $230, respectively (assuming no redemption).
<F4>Other  investment  companies  with  different  distribution  arrangements  and fees are  investing in the  Portfolio and
    additional such companies may do so in the future. See "Organization of the Fund and the Portfolio."
    
</TABLE>

<PAGE>
   
THE FUND'S FINANCIAL HIGHLIGHTS
- ------------------------------------------------------------------------------
The  following  information  should  be read in  conjunction  with  the  audited
financial statements included in the Statement of Additional Information, all of
which have been so  included  in  reliance  upon the report of Coopers & Lybrand
L.L.P.,  independent  accountants,  as experts in accounting and auditing, which
report  is  contained  in  the  Statement  of  Additional  Information.  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 Principal Underwriter.
- --------------------------------------------------------------------------------

                                                        YEAR ENDED DECEMBER 31,
                                                       -------------------------
                                                            1994       1993<F1>
                                                          ------     ------
NET ASSET VALUE -- Beginning of period                  $ 9.9300  $ 10.0000
                                                         -------    -------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income                                   $ 0.6582  $  0.1266
Net realized and unrealized gain/(loss) on investments   (0.8655)   (0.0624)
                                                         -------    -------
Total income/(loss) from investment operations           (0.2073) $  0.0642
                                                         -------   -------
LESS DISTRIBUTIONS:
From net investment income                              $(0.6582) $ (0.1266)
In excess of net investment income                       (0.0745)   (0.0076)
                                                         -------    -------
Total distributions                                     $(0.7327) $ (0.1342)
                                                         -------    -------
NET ASSET VALUE -- End of period                        $ 8.9900  $  9.9300
                                                         -------    -------
TOTAL RETURN<F3>                                           (2.09)%     0.25%
RATIOS/SUPPLEMENTAL DATA:
Ratio of interest expense to average
 daily net assets<F4>                                       0.60%      0.54%<F2>
Ratio of other expenses to average 
 daily net assets<F4>                                       1.83%      2.06%<F2>
Ratio of net investment income to average daily
  net assets                                                6.91%      5.83%<F2>
NET ASSETS AT END OF PERIOD (000's omitted)             $ 85,935  $  20,951

<F1>For the period from the start of business, November 1, 1993, to December 31,
    1993.
<F2>Computed on an annualized basis.
<F3>Total return is calculated assuming a purchase at the net asset value on the
    first day and a sale at the net asset  value on the last day of each  period
    reported. Dividends and distributions,  if any, are assumed to be reinvested
    at the net asset value on the payable date.
<F4>Includes the Fund's share of Government  Obligations  Portfolio's  allocated
    expenses.

    
   


<PAGE>
THE FUND'S INVESTMENT OBJECTIVE
- ------------------------------------------------------------------------------
EV MARATHON GOVERNMENT  OBLIGATIONS FUND'S INVESTMENT  OBJECTIVE IS TO REALIZE A
HIGH CURRENT RETURN.  The Fund currently seeks to meet its investment  objective
by investing  its assets in the  Government  Obligations  Portfolio,  a separate
registered  investment  company  which has the same  investment  objectives  and
policies as the Fund. The Fund's and the Portfolio's  investment  objectives are
nonfundamental  and may be changed when  authorized by a vote of the Trustees of
the Trust or the Portfolio,  respectively, without obtaining the approval of the
Fund's  shareholders or the investors in the Portfolio,  as the case may be. The
Trustees of the Trust have no present  intention to change the Fund's  objective
and intend to submit any proposed material change in the investment objective to
shareholders in advance for their approval.


HOW THE FUND AND THE PORTFOLIO INVEST THEIR ASSETS
- ------------------------------------------------------------------------------
IN SEEKING HIGH CURRENT  RETURN,  THE PORTFOLIO  INVESTS IN  SECURITIES  ISSUED,
GUARANTEED OR OTHERWISE BACKED BY THE U.S. GOVERNMENT, INCLUDING MORTGAGE-BACKED
SECURITIES OF FEDERAL AGENCIES AND FEDERALLY CHARTERED CORPORATIONS, AND ENGAGES
IN ACTIVE  MANAGEMENT  STRATEGIES,  INCLUDING  FUTURES  TRANSACTIONS AND RELATED
TECHNIQUES PRIMARILY FOR HEDGING PURPOSES.  The Portfolio's  management believes
that a high  current  return  may be  derived  from  yields  on U.S.  Government
securities,  including  market discount  accrued on obligations  purchased below
their stated redemption value.

U.S. GOVERNMENT SECURITIES. U.S. Government securities include (1) U.S. Treasury
obligations,  which  differ in their  interest  rates,  maturities  and times of
issuance:  U.S.  Treasury bills  (maturities of one year or less), U.S. Treasury
notes  (maturities  of one to ten  years)  and U.S.  Treasury  bonds  (generally
maturities of greater than ten years) and (2)  obligations  issued or guaranteed
by U.S. Government agencies and instrumentalities  which are supported by any of
the following: (a) the full faith and credit of the U.S. Treasury, (b) the right
of the issuer to borrow an amount  limited to a specific line of credit from the
U.S. Treasury,  (c) discretionary  authority of the U.S.  Government to purchase
certain  obligations of the U.S. Government agency or instrumentality or (d) the
credit of the agency or  instrumentality.  The  Portfolio may also invest in any
other  security  or  agreement  collateralized  or  otherwise  secured  by  U.S.
Government  securities.  Agencies and  instrumentalities  of the U.S. Government
include but are not limited to:  Federal Land Banks,  Federal  Financing  Banks,
Banks for Cooperatives,  Federal  Intermediate  Credit Banks, Farm Credit Banks,
Federal  Home Loan Banks,  Federal  Home Loan  Mortgage  Corporation  ("FHLMC"),
Federal National Mortgage  Association  ("FNMA"),  Government  National Mortgage
Association ("GNMA"),  Student Loan Marketing Association,  United States Postal
Service, Small Business Administration, Tennessee Valley Authority and any other
enterprise  established  or sponsored by the U.S.  Government.  Because the U.S.
Government   generally   is   not   obligated   to   provide   support   to  its
instrumentalities,  the  Portfolio  will invest in  obligations  issued by these
instrumentalities only if the Investment Adviser determines that the credit risk
with respect to such obligations is minimal.

MORTGAGE-BACKED   SECURITIES.   The  Portfolio  may  invest  in  mortgage-backed
securities that are either issued by the U.S.  Government or one of its agencies
or instrumentalities  or, if privately issued,  collateralized by mortgages that
are insured, guaranteed or otherwise backed by the U.S. Government, its agencies
or  instrumentalities.   Mortgage-backed   securities  represent   participation
interests  in  pools  of  adjustable  and  fixed-rate   mortgage  loans.  Unlike
conventional  debt  obligations,   mortgage-backed  securities  provide  monthly
payments derived from the monthly interest and principal payments (including any
prepayments) made by the individual  borrowers on the pooled mortgage loans. The
mortgage loans underlying  mortgage-backed securities are generally subject to a
greater rate of principal  prepayments in a declining  interest rate environment
and to a lesser rate of principal  prepayments  in an  increasing  interest rate
environment. Under certain interest and prepayment rate scenarios, the Portfolio
may fail to  recover  the  full  amount  of its  investment  in  mortgage-backed
securities,  notwithstanding  any  direct  or  indirect  governmental  or agency
guarantee.  Because faster than expected prepayments must usually be invested in
lower yielding  securities,  mortgage-backed  securities are less effective than
conventional  bonds in  "locking  in" a  specified  interest  rate.  To mitigate
prepayment   risk,   the   Investment   Adviser   considers   the  selection  of
mortgage-backed  securities  that  as a group  have a  history  of  more  stable
prepayment  rates relative to interest rate  fluctuations.  In a rising interest
rate  environment,  a declining  prepayment rate will extend the average life of
many  mortgage-backed  securities.  This  possibility  is often  referred  to as
extension  risk.  Extending  the  average  life  of a  mortgage-backed  security
increases the risk of  depreciation  due to future  increases in market interest
rates. As of December 31, 1994, the Portfolio had  approximately  40% of its net
assets invested in FNMA Mortgage-Backed  Certificates,  approximately 43% of its
net assets invested in Participation  Certificates of FHLMC and approximately 8%
of its net assets  invested in GNMA  Certificates.  FNMA  guarantees  the timely
payment of principal  and interest of its  Certificates,  FHLMC  guarantees  the
timely  payment of interest  and  ultimate  collection  of the  principal of its
Participation  Certificates,  and GNMA  Certificates  are guaranteed by the full
faith and credit of the U.S. Government.

    The  Portfolio  may  also  invest  in  classes  of  collateralized  mortgage
obligations ("CMOs") and various other  mortgage-backed  securities.  Senior CMO
classes will typically have priority over residual CMO classes as to the receipt
of principal and/or interest payments on the underlying  mortgages.  In choosing
among CMO  classes,  the  Investment  Adviser  will  evaluate  the total  income
potential of each class and other factors. If such obligations or securities are
privately issued they will currently be considered by the Investment  Adviser as
possible  investments  for the  Portfolio  only when the mortgage  collateral is
insured, guaranteed or otherwise backed by the U.S. Government or one or more of
its agencies or  instrumentalities.  As of December 31, 1994,  the Portfolio had
approximately  6% of its net assets  invested in CMOs  (including  one which was
privately issued).

    The  Portfolio  may invest in  securities  that  fluctuate  in value with an
index. Such securities generally will either be issued by the U.S. Government or
one of its agencies or instrumentalities or, if privately issued, collateralized
by  mortgages  that are  insured,  guaranteed  or  otherwise  backed by the U.S.
Government,  its agencies or  instrumentalities.  The interest  rate or, in some
cases,  the principal  payable at the maturity of an indexed security may change
positively  or inversely in relation to one or more  interest  rates,  financial
indices,  securities prices or other financial indicators  ("reference prices").
An indexed  security may be  leveraged  to the extent that the  magnitude of any
change in the  interest  rate or principal  payable on an indexed  security is a
multiple of the change in the reference  price.  Thus,  indexed  securities  may
decline  in value due to  adverse  market  changes in  reference  prices.  As of
December  31,   1994,   the   Portfolio   held  no  such   securities.   Because
mortgage-backed   and  indexed   securities  derive  their  value  from  another
instrument,  security or index, they are considered  derivative debt securities,
and are subject to different  combinations  of prepayment,  extension,  interest
rate and/or other market risks.

    The Portfolio may enter into  contracts to purchase  securities  for a fixed
price at a future date beyond the  customary  settlement  time if the  Portfolio
holds and maintains until the settlement date in a segregated account cash, U.S.
Government  securities  and  liquid  high-grade  debt  obligations  in an amount
sufficient  to  meet  the  purchase  price,  or if  the  Portfolio  enters  into
offsetting  contracts  for the forward sale of other  securities  it owns.  Such
contracts are  customarily  referred to as "forward  commitments"  and involve a
risk of loss if the value of the security to be purchased  declines prior to the
settlement date.

    The principal of and/or interest on certain U.S. Government securities which
may be purchased  by the  Portfolio  could be (a) payable in foreign  currencies
rather than U.S.  dollars or (b)  increased or diminished as a result of changes
in the value of the U.S. dollar relative to the value of foreign currencies. The
value of such  portfolio  securities  denominated  in foreign  currencies may be
affected  favorably  or  unfavorably  by changes in the  exchange  rate  between
foreign  currencies and the U.S. dollar.  In order to limit the risk inherent in
this type of security, it is the current policy of the Portfolio not to purchase
any such  security  if after  such  purchase  (i) more than 5% of its net assets
(taken at market value) would be invested in securities  denominated  in foreign
currencies  or (ii) more than 2% of its net assets (taken at market value) would
be invested in securities denominated in any one foreign currency.

    The Portfolio may from time to time have temporary investments in short-term
debt obligations  (including  certificates of deposit,  bankers' acceptances and
commercial  paper)  pending the making of other  investments  or as a reserve to
service redemptions and repurchases of its shares.

ACTIVE MANAGEMENT STRATEGIES
The  Portfolio  may engage in several  active  management  strategies to enhance
income and reduce investment risk. Each strategy requires the Investment Adviser
to consider special factors.

SECURITIES  LENDING.  The  Portfolio  may seek to increase its income by lending
portfolio securities to broker-dealers or other institutional borrowers.  During
the existence of a loan,  the Portfolio  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  Portfolio  may  pay  lending  fees to such
borrowers.  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  Portfolio's  management to be of good standing and
when, in the judgment of the Portfolio's management, the consideration which can
be earned from  securities  loans of this type justifies the attendant risk. The
financial  condition of the borrower will be monitored by the Investment Adviser
on an ongoing basis.  The value of the securities  loaned will not exceed 30% of
the  Portfolio's  total  assets.  During the year ended  December 31, 1994,  the
Portfolio typically had outstanding  approximately $70 million in collateralized
loans with terms of 7 days.

FUTURES CONTRACTS AND OTHER DERIVATIVE  INSTRUMENTS.  The Portfolio may purchase
or sell derivative  instruments  (which are instruments  that derive their value
from  another  instrument,   security,  index  or  currency)  to  hedge  against
fluctuations in interest rates, securities prices or currency exchange rates, to
change the duration of the Portfolio's fixed income  portfolio,  as a substitute
for the purchase or sale of securities or currency,  or to enhance  return.  The
Portfolio's  transactions in derivative  instruments may include the purchase or
sale of futures contracts on securities,  (such as U.S. Government  securities),
indices,   other  financial   instruments  (such  as  certificates  of  deposit,
Eurodollar  time  deposits,  and  economic  indices) or  currencies;  options on
futures  contracts;  exchange-traded  and  over-the-counter  ("OTC")  options on
securities;  indices or  currencies;  and forward  contracts to purchase or sell
currencies.  All of  the  Portfolio's  transactions  in  derivative  instruments
involve a risk of loss or depreciation due to  unanticipated  adverse changes in
interest rates,  securities  prices or currency exchange rates, the inability to
close out a  position  or default by the  counterparty.  The loss on  derivative
instruments  (other than purchased  options) may exceed the Portfolio's  initial
investment in these instruments.  In addition, the Portfolio may lose the entire
premium paid for  purchased  options that expire  before they can be  profitably
exercised by the Portfolio.  The Portfolio incurs  transaction  costs in opening
and closing positions in derivative instruments.  There can be no assurance that
the Investment  Adviser's use of derivative  instruments will be advantageous to
the Portfolio.

    The Portfolio's  success in using derivative  instruments to hedge portfolio
assets  depends  on the  degree  of price  correlation  between  the  derivative
instrument and the hedged asset.  Imperfect correlation may be caused by several
factors, including temporary price disparities among the trading markets for the
derivative  instrument,  the assets underlying the derivative instrument and the
Portfolio's  assets. OTC derivative  instruments  involve a heightened risk that
the issuer or counterparty will fail to perform its contractual obligations. The
staff  of the  Securities  and  Exchange  Commission  takes  the  position  that
purchased OTC options, assets used as cover for written OTC options, and certain
other derivative instruments (and securities) are subject to the Portfolio's 15%
limit  on  illiquid  investments.  The  Portfolio's  ability  to  terminate  OTC
derivative  instruments may depend on the cooperation of the  counterparties  to
such  instruments.  For thinly traded derivative  securities and contracts,  the
only source of price quotations may be the selling dealer or counterparty.

    To the extent that the Portfolio enters into futures  contracts,  options on
futures  contracts  and  options on  foreign  currencies  traded on an  exchange
regulated by the Commodity  Futures Trading  Commission  ("CFTC"),  in each case
that are not for bona fide  hedging  purposes  (as  defined  by the  CFTC),  the
aggregate  initial  margin and premiums  required to establish  these  positions
(excluding the amount by which options are  "in-the-money") may not exceed 5% of
the liquidation  value of the Portfolio's  portfolio,  after taking into account
unrealized  profits and  unrealized  losses on any  contracts  the Portfolio has
entered into.

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  Portfolio  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 fixed-income  securities or changes in the investment
objectives of investors.

MORTGAGE  ROLLS.  The Portfolio may enter into mortgage  "dollar rolls" in which
the Portfolio sells mortgage-backed securities for delivery in the current month
and  simultaneously  contracts to repurchase  substantially  similar (same type,
coupon and  maturity)  securities  on a specified  future date.  During the roll
period, the Portfolio forgoes principal and interest paid on the mortgage-backed
securities.  The Portfolio is compensated by the difference  between the current
sales price and the lower forward price for the future  purchase (often referred
to as the "drop") as well as by the interest  earned on the cash proceeds of the
initial sale. A "covered roll" is a specific type of dollar roll for which there
is an offsetting  cash position or a cash  equivalent  security  position  which
matures on or before the forward settlement date of the dollar roll transaction.
The Portfolio will only enter into covered rolls.  Covered rolls are not treated
as a  borrowing  or  other  senior  security  and  will  be  excluded  from  the
calculation of the Portfolio's borrowings and other senior securities.

LEVERAGE THROUGH BORROWING.  The Portfolio may borrow from banks to increase its
portfolio  holdings of debt  securities on which call options may be written and
to acquire  U.S.  Treasury  bills which may be  deposited  with the  Portfolio's
custodian or a broker-dealer in connection with various  Portfolio  investments.
Such borrowings will be unsecured.  The Investment  Company Act of 1940 requires
the Portfolio to maintain  continuous  asset coverage of not less than 300% with
respect  to such  borrowings.  This  allows  the  Portfolio  to borrow  for such
purposes an amount  (when  taken  together  with any  borrowings  for  temporary
extraordinary or emergency  purposes as described below) equal to as much as 50%
of the value of its net assets (not  including such  borrowings).  If such asset
coverage  should decline to less than 300% due to market  fluctuations  or other
reasons,  the Portfolio  may be required to sell some of its portfolio  holdings
within three days in order to reduce the  Portfolio's  debt and restore the 300%
asset  coverage,  even  though  it may be  disadvantageous  from  an  investment
standpoint  to sell  securities at that time.  Leveraging  will  exaggerate  any
increase or decrease in the net asset value of the securities held by Portfolio,
and in that respect may be considered a speculative practice. Money borrowed for
leveraging  will be subject to  interest  costs  which may or may not exceed the
option  premiums  and  interest  received  from the  securities  purchased.  The
Portfolio  may  also  be  required  to  maintain  minimum  average  balances  in
connection  with such borrowings or to pay a commitment or other fee to maintain
a line of  credit;  either  of these  requirements  would  increase  the cost of
borrowing over the stated interest rate.

REPURCHASE  AGREEMENTS.  The Portfolio may enter into repurchase agreements with
respect to U.S. Government securities.  Under a repurchase agreement, the seller
agrees to  repurchase  such  securities  at the  Portfolio's  cost plus interest
within a specified time (normally one day). While repurchase  agreements involve
certain  risks  not  associated  with  direct  investments  in  U.S.  Government
securities,  the Portfolio follows  procedures  designed to moderate such risks.
These procedures  include  effecting  repurchase  transactions  only with large,
well-capitalized  banks. In addition, the Portfolio's repurchase agreements will
provide that the value of the collateral  underlying  the repurchase  agreements
will always be at least equal to the  repurchase  price,  including  any accrued
interest  earned on the  repurchase  agreement.  In the  event of a  default  or
bankruptcy  by a  selling  bank,  the  Portfolio  will  seek to  liquidate  such
collateral.  However,  the exercise of the  Portfolio's  right to liquidate such
collateral  would  involve  certain  costs or delays  and,  to the  extent  that
proceeds from any sale upon a default of the  obligation to repurchase  are less
than the repurchase price, the Portfolio could suffer a loss.

ADDITIONAL INVESTMENT INFORMATION
The Portfolio expects that various new types of investments,  hedging techniques
and management  strategies will be developed and made available to institutional
investors  in the future.  The  Investment  Adviser  will  consider  making such
investments or adopting such techniques or strategies if it determines that they
are  consistent  with the  Portfolio's  investment  objective and  policies.  Of
course, the total mix of the Portfolio's investments can change daily.

FLUCTUATIONS  IN VALUE.  Because  interest  yields on U.S.  Government and other
securities and  opportunities  to realize  additional  income and net gains from
active  management  strategies  will vary from time to time  because  of general
economic and market conditions and many other factors, the Fund's current return
will fluctuate,  and there can be no assurance that the Fund's objective will be
achieved.  As a result of their high credit quality and market  liquidity,  U.S.
Government  securities generally provide a lower current return than obligations
of other issuers.  As with other debt securities,  the value of U.S.  Government
securities  changes as interest rates  fluctuate.  Fluctuations  in the value of
securities  held by the Portfolio  will not affect  interest  income on existing
portfolio  securities but will be reflected in the Fund's net asset value. Thus,
a decrease in interest rates will  generally  result in an increase in the value
of Fund shares.  Conversely,  during periods of rising interest rates, the value
of Fund shares will generally decline.  The magnitude of these fluctuations will
generally be greater at times when the Portfolio's  average  maturity is longer.
In addition,  as set forth above,  the  derivative  securities the Portfolio may
hold may  magnify  those  risks and pose  additional  risks.  Active  management
techniques,  if  successful,  may only partly offset these risks.  Shares of the
Fund are not government guaranteed.

INVESTMENT  RESTRICTIONS.  The  Fund  and the  Portfolio  have  adopted  certain
fundamental  investment  restrictions  which  are  enumerated  in  detail in the
Statement  of  Additional  Information  and  which  may  not be  changed  unless
authorized  by a  shareholder  vote and an investor  vote,  respectively.  These
restrictions are designed to reduce  investment risk. Except for such enumerated
restrictions,  the  investment  objective  and  policies  of the  Fund  and  the
Portfolio are not  fundamental  policies,  and accordingly may be changed by the
Trustees of the Trust and the  Portfolio  without  obtaining the approval of the
Fund's  shareholders  or the investors in the Portfolio,  as the case may be. If
any changes were made in the Fund's investment objective, the Fund might have an
investment  objective  different from the objective which an investor considered
appropriate at the time the investor became a shareholder of the Fund.


ORGANIZATION OF THE FUND AND THE PORTFOLIO
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THE FUND IS A DIVERSIFIED SERIES OF EATON VANCE GOVERNMENT  OBLIGATIONS TRUST, A
BUSINESS TRUST ESTABLISHED UNDER  MASSACHUSETTS LAW PURSUANT TO A DECLARATION OF
TRUST DATED MAY 7, 1984, AS AMENDED AND  RESTATED.  THE TRUST IS A MUTUAL FUND -
AN  OPEN-END  MANAGEMENT  INVESTMENT  COMPANY.  The  Trustees  of the  Trust are
responsible for the overall management and supervision of its affairs. The Trust
may issue an unlimited number of shares of beneficial interest (no par value per
share) in one or more  series and because  the Trust can offer  separate  series
(such as the Fund) it is known as a "series  company." Each share  represents an
equal   proportionate   beneficial   interest  in  the  Fund.  When  issued  and
outstanding,  the  shares  are  fully  paid and  nonassessable  by the Trust and
redeemable  as described  under "How to Redeem Fund  Shares".  Shareholders  are
entitled  to one vote for each full share held.  Fractional  shares may be voted
proportionately.  Shares have no preemptive or conversion  rights and are freely
transferable.  In the event of the  liquidation  of the Fund,  shareholders  are
entitled  to  share  pro  rata in the  net  assets  of the  Fund  available  for
distribution to shareholders.

THE  PORTFOLIO  IS  ORGANIZED AS A TRUST UNDER THE LAWS OF THE STATE OF NEW YORK
AND  INTENDS  TO BE TREATED AS A  PARTNERSHIP  FOR  FEDERAL  TAX  PURPOSES.  The
Portfolio,  as well as the Trust,  intends to comply with all applicable Federal
and state  securities  laws. The Portfolio's  Declaration of Trust provides that
the Fund and other entities  permitted to invest in the Portfolio  (e.g.,  other
U.S. and foreign  investment  companies,  and common and commingled trust funds)
will each be liable for all obligations of the Portfolio.  However,  the risk of
the Fund  incurring  financial  loss on account of such  liability is limited to
circumstances in which both inadequate insurance exists and the Portfolio itself
is  unable  to meet its  obligations.  Accordingly,  the  Trustees  of the Trust
believe that neither the Fund nor its shareholders will be adversely affected by
reason of the Fund investing in the Portfolio.

SPECIAL INFORMATION ON THE FUND/PORTFOLIO  INVESTMENT STRUCTURE.  An investor in
the Fund  should be aware that the Fund,  unlike  mutual  funds  which  directly
acquire and manage  their own  portfolios  of  securities,  seeks to achieve its
investment  objective  by investing  its assets in an interest in the  Portfolio
(although the Fund may temporarily hold a de minimus amount of cash), which is a
separate investment company with an identical investment  objective.  Therefore,
the Fund's  interest in the  securities  owned by the Portfolio is indirect.  In
addition to selling an interest to the Fund, the Portfolio may sell interests to
other affiliated and  non-affiliated  mutual funds or  institutional  investors.
Such investors will invest in the Portfolio on the same terms and conditions and
will pay a proportionate share of the Portfolio's  expenses.  However, the other
investors  investing in the  Portfolio  are not required to sell their shares at
the  same  public  offering  price  as the  Fund  due  to  variations  in  sales
commissions  and other  operating  expenses.  Therefore,  investors  in the Fund
should be aware that these  differences  may  result in  differences  in returns
experienced by investors in the various funds that invest in the Portfolio. Such
differences  in  returns  are also  present  in other  mutual  fund  structures,
including funds that have multiple classes of shares. For information  regarding
the investment objective, policies and restrictions,  see "The Fund's Investment
Objective"  and "How the Fund and the Portfolio  Invest their  Assets".  Further
information  regarding  investment  practices  may be found in the  Statement of
Additional Information.

    The Trustees of the Trust have  considered the advantages and  disadvantages
of investing the assets of the Fund in the Portfolio,  as well as the advantages
and  disadvantages  of the  two-tier  format.  The  Trustees  believe  that  the
structure  offers  opportunities  for  substantial  growth in the  assets of the
Portfolio,  and affords the  potential  for  economies of scale for the Fund, at
least when the assets of the Portfolio exceed $500 million.

    The Fund may withdraw  (completely redeem) all its assets from the Portfolio
at any time if the Board of Trustees of the Trust  determines  that it is in the
best  interest  of  the  Fund  to  do  so.  The  investment  objective  and  the
nonfundamental  investment policies of the Fund and the Portfolio may be changed
by the Trustees of the Trust and the Portfolio without obtaining the approval of
the shareholders of the Fund or the investors in the Portfolio,  as the case may
be. Any such change of the  investment  objective  of the Fund or the  Portfolio
will be preceded by thirty days' advance  written notice to the  shareholders of
the Fund or the investors in the Portfolio, as the case may be. If a shareholder
redeems shares because of a change in the  nonfundamental  objective or policies
of the Fund, those shares may be subject to a contingent  deferred sales charge,
as described in "How to Redeem Fund Shares". In the event the Fund withdraws all
of its  assets  from the  Portfolio,  or the  Board  of  Trustees  of the  Trust
determines  that  the  investment  objective  of  the  Portfolio  is  no  longer
consistent  with the investment  objective of the Fund, the Board of Trustees of
the Trust would  consider  what action might be taken,  including  investing the
assets  of the  Fund  in  another  pooled  investment  entity  or  retaining  an
investment adviser to manage the Fund's assets in accordance with its investment
objective.  The Fund's investment performance may be affected by a withdrawal of
all its assets from the Portfolio.

    Information regarding other pooled investment entities or funds which invest
in the Portfolio may be obtained by contacting  Eaton Vance  Distributors,  Inc.
(the "Principal  Underwriter" or "EVD"),  24 Federal Street,  Boston,  MA 02110,
(617) 482-8260.  Smaller investors in the Portfolio may be adversely affected by
the  actions of larger  investors  in the  Portfolio.  For  example,  if a large
investor  withdraws from the Portfolio,  the remaining  investors may experience
higher  pro  rata  operating   expenses,   thereby   producing   lower  returns.
Additionally,  the  Portfolio  may become less  diverse,  resulting in increased
portfolio  risk, and experience  decreasing  economies of scale.  However,  this
possibility exists as well for historically structured funds which have large or
institutional investors.
    

    Until  recently,  the  Administrator   sponsored  and  advised  historically
structured funds. Funds which invest all their assets in interests in a separate
investment  company are a relatively new development in the mutual fund industry
and,  therefore,  the  Fund  may  be  subject  to  additional  regulations  than
historically structured funds.

    The  Declaration of Trust of the Portfolio  provides that the Portfolio will
terminate  120 days  after  the  complete  withdrawal  of the Fund or any  other
investor in the Portfolio,  unless either the remaining investors,  by unanimous
vote at a meeting  of such  investors,  or a  majority  of the  Trustees  of the
Portfolio,  by  written  instrument  consented  to by all  investors,  agree  to
continue the  business of the  Portfolio.  This  provision  is  consistent  with
treatment of the Portfolio as a partnership for Federal income tax purposes. See
"Distributions  and  Taxes" for  further  information.  Whenever  the Fund as an
investor in the  Portfolio  is requested  to vote on matters  pertaining  to the
Portfolio (other than the termination of the Portfolio's business,  which may be
determined by the Trustees of the Portfolio without investor approval), the Fund
will hold a meeting  of Fund  shareholders  and will  vote its  interest  in the
Portfolio for or against such matters  proportionately  to the  instructions  to
vote for or against such matters received from Fund shareholders. The Fund shall
vote shares for which it receives no voting  instructions in the same proportion
as the shares for which it receives voting instructions.  Other investors in the
Portfolio may alone or collectively  acquire  sufficient voting interests in the
Portfolio to control matters  relating to the operation of the Portfolio,  which
may require the Fund to withdraw its  investment  in the Portfolio or take other
appropriate action. Any such withdrawal could result in a distribution "in kind"
of portfolio  securities (as opposed to a cash distribution from the Portfolio).
If securities  are  distributed,  the Fund could incur  brokerage,  tax or other
charges in converting the securities to cash. In addition,  the  distribution in
kind may result in a less  diversified  portfolio  of  investments  or adversely
affect the  liquidity of the Fund.  Notwithstanding  the above,  there are other
means for meeting shareholder redemption requests, such as borrowing.

   
    The  Trustees  of the  Trust,  including  a  majority  of the  noninterested
Trustees,  have approved written procedures designed to identify and address any
potential  conflicts of interest  arising from the fact that the Trustees of the
Trust and the Trustees of the Portfolio are the same.  Such  procedures  require
each Board to take actions to resolve any conflict of interest  between the Fund
and the Portfolio,  and it is possible that the creation of separate  Boards may
be considered.  For further information  concerning the Trustees and officers of
the Trust and the Portfolio, see the Statement of Additional Information.


MANAGEMENT OF THE FUND AND THE PORTFOLIO
    
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THE PORTFOLIO  ENGAGES BOSTON  MANAGEMENT AND RESEARCH  ("BMR"),  A WHOLLY-OWNED
SUBSIDIARY OF 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.

   
    Acting  under  the  general  supervision  of the  Board of  Trustees  of the
Portfolio,  BMR manages  the  Portfolio's  investments  and  affairs.  Under its
investment  advisory  agreement  with the  Portfolio,  BMR  receives  a  monthly
advisory fee of .0625%  (equivalent  to .75%  annually) of the average daily net
assets of the  Portfolio up to $500  million.  On net assets of $500 million and
over the annual fee is reduced as follows:
                                                            ANNUALIZED FEE RATE
AVERAGE DAILY NET ASSETS FOR THE MONTH                       (FOR EACH LEVEL)
- -------------------------------------                         ---------------
$500 million but less than $1 billion ...................         0.6875%
$1 billion but less than $1.5 billion ...................         0.6250%
$1.5 billion but less than $2 billion ...................         0.5625%
$2 billion but less than $3 billion .....................         0.5000%
$3 billion and over .....................................         0.4375%

    As at December 31, 1994, the Portfolio had net assets of  $515,669,513.  For
the fiscal year ended  December 31, 1994,  the Portfolio  paid BMR advisory fees
equivalent to .74% of the Portfolio's average daily net assets for such year.

    BMR furnishes  for the use of the  Portfolio  office space and all necessary
office facilities,  equipment and personnel for servicing the investments of the
Portfolio. BMR also places the portfolio transactions of the Portfolio with many
broker-dealer  firms  and uses its best  efforts  to  obtain  execution  of such
transactions at prices which are advantageous to the Portfolio and at reasonably
competitive  commission rates. Subject to the foregoing,  BMR may consider sales
of shares of the Fund or of other investment companies sponsored by BMR or Eaton
Vance as a factor in the selection of broker-dealer  firms to execute  portfolio
transactions.

    Susan Schiff has acted as the portfolio  manager of the  Portfolio  since it
commenced  operations.  She has been a Vice  President of Eaton Vance and of BMR
since 1993.

    BMR OR EATON VANCE ACTS AS INVESTMENT  ADVISER TO  INVESTMENT  COMPANIES AND
VARIOUS  INDIVIDUAL AND  INSTITUTIONAL  CLIENTS WITH ASSETS UNDER  MANAGEMENT OF
APPROXIMATELY  $15 BILLION.  Eaton Vance is a  wholly-owned  subsidiary of Eaton
Vance Corp.,  a publicly held 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.

    The Trust has retained  the services of Eaton Vance to act as  Administrator
of the Fund.  The Trust has not retained the services of an  investment  adviser
since  the  Trust  seeks to  achieve  the  investment  objective  of the Fund by
investing  the Fund's assets in the  Portfolio.  As  Administrator,  Eaton Vance
provides the Fund with general  office  facilities  and  supervises  the overall
administration of the Fund. For these services Eaton Vance currently receives no
compensation.  The  Trustees  of the  Trust may  determine,  in the  future,  to
compensate Eaton Vance for such services.

    The Portfolio and the Fund, as the case may be, will each be responsible for
all of its respective  costs and expenses not expressly  stated to be payable by
BMR  under  the  investment  advisory  agreement,   by  Eaton  Vance  under  the
administrative services agreement, or by EVD under the distribution agreement.

DISTRIBUTION PLAN
- --------------------------------------------------------------------------------
THE FUND FINANCES  DISTRIBUTION  ACTIVITIES AND HAS ADOPTED A DISTRIBUTION  PLAN
(THE "PLAN")  PURSUANT TO RULE 12B-1 UNDER THE  INVESTMENT  COMPANY ACT OF 1940.
Rule 12b-1  permits a mutual  fund,  such as the Fund,  to finance  distribution
activities  and bear expenses  associated  with the  distribution  of its shares
provided  that any payments made by the Fund are made pursuant to a written plan
adopted in accordance  with the Rule. The Plan is subject to, and complies with,
the sales charge rule of the National  Association of Securities  Dealers,  Inc.
(the "NASD Rule").  The Plan is described further in the Statement of Additional
Information,  and the following is a description of the salient  features of the
Plan. The Plan provides that the Fund,  subject to the NASD Rule, will pay sales
commissions and distribution fees to the Principal Underwriter only after and as
a  result  of the  sale of  shares  of the  Fund.  On each  sale of Fund  shares
(excluding  reinvestment  of  distributions)  the Fund  will  pay the  Principal
Underwriter amounts representing (i) sales commissions equal to 5% of the amount
received by the Fund for each share sold and (ii)  distribution  fees calculated
by applying the rate of 1% over the prime rate then  reported in The Wall Street
Journal  to the  outstanding  balance  of  Uncovered  Distribution  Charges  (as
described  below)  of  the  Principal  Underwriter.  The  Principal  Underwriter
currently expects to pay sales commissions (except on exchange  transactions and
reinvestments) to a financial service firm (an "Authorized Firm") at the time of
sale  equal to 4% of the  purchase  price of the shares  sold by such Firm.  The
Principal  Underwriter will use its own funds (which may be borrowed from banks)
to pay such  commissions.  Because  the  payment  of the sales  commissions  and
distribution  fees to the  Principal  Underwriter  is  subject  to the NASD Rule
described  below,  it will take the  Principal  Underwriter a number of years to
recoup the sales  commissions  paid by it to Authorized  Firms from the payments
received by it from the Fund pursuant to the Plan.

    THE NASD  RULE  REQUIRES  THE FUND TO LIMIT  ITS  ANNUAL  PAYMENTS  OF SALES
COMMISSIONS AND DISTRIBUTION FEES TO THE PRINCIPAL  UNDERWRITER TO AN AMOUNT NOT
EXCEEDING  .75% OF THE FUND'S  AVERAGE  DAILY NET ASSETS FOR EACH  FISCAL  YEAR.
Under its Plan, the Fund accrues daily an amount at the rate of 1/365 of .75% of
the Fund's net assets,  and pays such accrued  amounts  monthly to the Principal
Underwriter.  The Plan requires such accruals to be  automatically  discontinued
during  any  period in which  there are no  outstanding  Uncovered  Distribution
Charges under the Plan. Uncovered Distribution Charges are calculated daily and,
briefly, are equivalent to all unpaid sales commissions and distribution fees to
which the Principal  Underwriter  is entitled under the Plan less all contingent
deferred sales charges theretofore paid to the Principal Underwriter.  The Eaton
Vance organization may be considered to have realized a profit under the Plan if
at any point in time the  aggregate  amounts  of all  payments  received  by the
Principal  Underwriter  from  the  Fund  pursuant  to the  Plan,  including  any
contingent deferred sales charges,  have exceeded the total expenses theretofore
incurred by such organization in distributing shares of the Fund. Total expenses
for this purpose will include an allocable portion of the overhead costs of such
organization and its branch offices.

    Because of the NASD Rule  limitation on the amount of sales  commissions and
distribution  fees paid to the Principal  Underwriter  during any fiscal year, a
high  level of sales of Fund  shares  during  the  initial  years of the  Fund's
operations would cause a large portion of the sales commission attributable to a
sale of  Fund  shares  to be  accrued  and  paid  by the  Fund to the  Principal
Underwriter  in fiscal  years  subsequent  to the year in which such shares were
sold.  This  spreading  of sales  commissions  payments  under  the Plan over an
extended  period  would  result  in the  incurrence  and  payment  of  increased
distribution  fees under the Plan.  For the fiscal year ended December 31, 1994,
the Fund paid  sales  commissions  under the Plan to the  Principal  Underwriter
equivalent  to .75% of the Fund's  average daily net assets for such year. As at
December  31,  1994,  the  outstanding  Uncovered  Distribution  Charges  of the
Principal  Underwriter  calculated  under  the Plan  amounted  to  approximatley
$3,980,000 (which amount was equivalent to 4.6% of the Fund's net assets on such
day).

    THE PLAN ALSO  AUTHORIZES  THE FUND TO MAKE  PAYMENTS OF SERVICE FEES TO THE
PRINCIPAL  UNDERWRITER,  AUTHORIZED  FIRMS  AND OTHER  PERSONS  IN  AMOUNTS  NOT
EXCEEDING  .25% OF THE FUND'S AVERAGE DAILY NET ASSETS FOR EACH FISCAL YEAR. The
Trustees of the Trust have initially  implemented  the Plan by  authorizing  the
Fund to make quarterly payments of service fees to the Principal Underwriter and
Authorized  Firms in amounts not  expected to exceed .25% of the Fund's  average
daily net assets for any fiscal  year based on the value of Fund  shares sold by
such persons and remaining  outstanding for at least twelve months. As permitted
by the NASD  Rule,  such  payments  are made for  personal  services  and/or the
maintenance of shareholder accounts. Service fees are separate and distinct from
the sales commissions and distribution fees payable by the Fund to the Principal
Underwriter,  and as such are not subject to automatic discontinuance when there
are no outstanding Uncovered  Distribution Charges of the Principal Underwriter.
For the fiscal  year ended  December  31,  1994,  the Fund  accrued  service fee
payments  under the  Plan,  but did not make any  service  fee  payments  to the
Principal Underwriter.

    The  Principal  Underwriter  may,  from  time to time,  at its own  expense,
provide  additional  incentives  to  Authorized  Firms which  employ  registered
representatives  who sell a minimum  dollar  amount of the Fund's  shares and/or
shares  of  other  funds  distributed  by the  Principal  Underwriter.  In  some
instances,  such additional incentives may be offered only to certain Authorized
Firms whose  representatives are expected to sell significant amounts of shares.
In  addition,  the  Principal  Underwriter  may from  time to time  increase  or
decrease the sales commissions payable to Authorized Firms.

    The Fund may, in its absolute discretion,  suspend, discontinue or limit the
offering  of its shares at any time.  In  determining  whether  any such  action
should be taken, the Fund's management intends to consider all relevant factors,
including  without  limitation the size of the Fund, the investment  climate and
market  conditions,  the volume of sales and redemptions of Fund shares, and the
amount of Uncovered Distribution Charges of the Principal Underwriter.  The Plan
may  continue in effect and payments  may be made under the Plan  following  any
such  suspension,  discontinuance  or limitation of the offering of Fund shares;
however,  the Fund is not  contractually  obligated to continue the Plan for any
particular period of time.  Suspension of the offering of Fund shares would not,
of course, affect a shareholder's ability to redeem shares.

VALUING FUND SHARES
- ------------------------------------------------------------------------------
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  (normally  4:00 p.m.  New York  time).  The Fund's net asset value per
share  is  determined  by IBT Fund  Services  (Canada)  Inc.,  a  subsidiary  of
Investors  Bank  &  Trust  Company  ("IBT"),  the  Fund's  and  the  Portfolio's
custodian,  (as agent for the Fund), in the manner authorized by the Trustees of
the Trust. Net asset value is computed by dividing the value of the Fund's total
assets, less its liabilities,  by the number of shares outstanding.  Because the
Fund  invests its assets in an interest in the  Portfolio,  the Fund's net asset
value will  reflect the value of its interest in the  Portfolio  (which in turn,
reflects the underlying value of the Portfolio's assets and liabilities).

    Authorized  Firms must  communicate  an  investor's  order to the  Principal
Underwriter  prior to the close of the Principal  Underwriter's  business day to
receive that day's net asset value per Fund share.  It is the Authorized  Firms'
responsibility to transmit orders promptly to the Principal  Underwriter,  which
is a wholly-owned subsidiary of Eaton Vance.

    The  Portfolio's  net  asset  value is also  determined  as of the  close of
regular trading on the Exchange by IBT Fund Services (Canada) Inc. (as agent for
the Portfolio) in the manner  authorized by the Trustees of the  Portfolio.  Net
asset value is computed by subtracting the liabilities of the Portfolio from the
value of its total assets.  Mortgage-backed "pass-through" securities are valued
through use of a matrix  pricing  system which takes into  account  closing bond
valuations, yield differentials, anticipated prepayments and interest rates. For
further  information  regarding the  valuation of the  Portfolio's  assets,  see
"Determination  of Net Asset Value" in the Statement of Additional  Information.
Eaton Vance Corp. owns 77.3% of the outstanding stock of IBT, the Fund's and the
Portfolio's custodian.

- --------------------------------------------------------------------------------
SHAREHOLDERS  MAY DETERMINE THE VALUE OF THEIR  INVESTMENT  BY  MULTIPLYING  THE
NUMBER OF FUND SHARES OWNED BY THE CURRENT NET ASSET VALUE PER SHARE.
- --------------------------------------------------------------------------------


HOW TO BUY FUND SHARES
- ------------------------------------------------------------------------------
SHARES OF THE FUND MAY BE PURCHASED  FOR CASH OR MAY BE ACQUIRED IN EXCHANGE FOR
SECURITIES.  Investors may purchase shares of the Fund through  Authorized Firms
at the net asset value per share of the Fund next  determined  after an order is
effective.  The Fund may  suspend  the  offering  of  shares at any time and may
refuse any order for the purchase 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 (the  "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  Automated  Investing
accounts, which may be established with an investment of $50 or more. See "Eaton
Vance Shareholder Services".

    In connection with employee benefit or other continuous group purchase plans
under which the average initial  purchase by a participant of the plan is $1,000
or more, the Fund may accept initial investments of less than $1,000 on the part
of an individual participant. In the event a shareholder who is a participant of
such a plan  terminates  participation  in the plan,  his or her shares  will be
transferred  to a regular  individual  account.  However,  such  account will be
subject to the right of redemption by the Fund as described under "How to Redeem
Fund Shares."

ACQUIRING  FUND SHARES IN EXCHANGE FOR  SECURITIES.  IBT, as escrow agent,  will
receive securities acceptable to Eaton Vance, as Administrator,  in exchange for
Fund shares at their net asset value as determined  above.  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 net asset value per
Fund  share  on the day  such  proceeds  are  received.  Eaton  Vance  will  use
reasonable  efforts to obtain the then current market price for such  securities
but does not guarantee  the best  available  price.  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 EV Marathon Government Obligations Fund

    IN THE CASE OF PHYSICAL DELIVERY:

        Investors Bank & Trust Company
        Attention: EV Marathon Government Obligations Fund
        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,  must 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
or her tax adviser with respect to the particular  Federal,  state and local tax
consequences of exchanging securities for Fund shares.

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


HOW TO REDEEM FUND SHARES
- ------------------------------------------------------------------------------
A SHAREHOLDER MAY REDEEM FUND SHARES BY DELIVERING TO THE  SHAREHOLDER  SERVICES
GROUP, INC.,  BOS725,  P.O. BOX 1559, BOSTON,  MASSACHUSETTS  02104,  during its
business hours a written  request for  redemption in good order,  plus any share
certificates  with executed stock powers.  The redemption price will be based on
the net asset value per Fund share next computed after such delivery. Good order
means that all  relevant  documents  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  and  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 in good order by The
Shareholder Services Group, Inc., 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 applicable  contingent  deferred sales charges  (described below) and any
Federal income tax required to be withheld.  Although the Fund normally  expects
to make payment in cash for redeemed  shares,  the Trust,  subject to compliance
with applicable regulations,  has reserved the right to pay the redemption price
of shares of the Fund, either totally or partially, by a distribution in kind of
readily  marketable  securities  withdrawn by the Fund from the  Portfolio.  The
securities so distributed would be valued pursuant to the Portfolio's  valuation
procedures.  If a shareholder  received a distribution  in kind, the shareholder
could incur brokerage or other charges in converting the securities to cash.

    To sell  shares at their net  asset  value  through  an  Authorized  Firm (a
repurchase),  a  shareholder  can place a repurchase  order with the  Authorized
Firm,  which may  charge a fee.  The value of such  shares is based upon the net
asset value calculated after EVD, as the Fund's agent, receives the order. It is
the Authorized Firm's  responsibility to transmit promptly  repurchase orders to
EVD.  Throughout this  Prospectus,  the word  "redemption" is generally meant to
include a repurchase.

    If  shares  were  recently  purchased,  the  proceeds  of a  redemption  (or
repurchase) will not be sent until the check (including a certified or cashier's
check)  received  for the  shares  purchased  has  cleared.  Payment  for shares
tendered for redemption may be delayed up to 15 days from the purchase date when
the purchase check has not yet cleared. Redemptions or repurchases may result in
a taxable gain or loss.

    Due to the high cost of maintaining  small  accounts,  the Fund reserves the
right to redeem  accounts  with  balances of less than  $1,000.  Prior to such a
redemption,  shareholders  will  be  given  60  days'  written  notice  to  make
additional  purchases.  Thus, an investor making an initial investment of $1,000
would  not be able to  redeem  shares  without  being  subject  to this  policy.
However,  no such  redemption  would be required by the Fund if the cause of the
low account  balance was a reduction in the net asset value of Fund  shares.  No
contingent   deferred  sales  charge  will  be  imposed  with  respect  to  such
involuntary redemptions.

CONTINGENT DEFERRED SALES CHARGE.  Shares redeemed within the first six years of
their   purchase   (except  shares   acquired   through  the   reinvestment   of
distributions)  generally will be subject to a contingent deferred sales charge.
This contingent deferred sales charge is imposed on any redemption the amount of
which exceeds the aggregate value at the time of redemption of (a) all shares in
the  account  purchased  more than six years  prior to the  redemption,  (b) all
shares in the account acquired through  reinvestment of  distributions,  and (c)
the increase,  if any, of value of all other shares in the account (namely those
purchased within the six years preceding the redemption) over the purchase price
of such shares.  Redemptions are processed in a manner to maximize the amount of
redemption  proceeds  which will not be subject to a contingent  deferred  sales
charge.  That is, each  redemption  will be assumed to have been made first from
the exempt  amounts  referred to in clauses (a),  (b) and (c) above,  and second
through  liquidation of those shares in the account referred to in clause (c) on
a  first-in-first-out  basis.  Any  contingent  deferred  sales  charge which is
required to be imposed on share  redemptions will be made in accordance with the
following schedule:

          YEAR OF                                            CONTINGENT
        REDEMPTION                                         DEFERRED SALES
      AFTER PURCHASE                                           CHARGE
      --------------                                       --------------- 
      First .............................................         5%
      Second ............................................         5%
      Third .............................................         4%
      Fourth ............................................         3%
      Fifth .............................................         2%
      Sixth .............................................         1%
      Seventh and following .............................         0%

    For shares purchased prior to August 1, 1994, the contingent  deferred sales
charge  for  redemptions  within  the  first  year  after  purchase  is  6%.  In
calculating  the  contingent  deferred  sales charge upon the redemption of Fund
shares acquired in an exchange for shares of a fund currently  listed under "The
Eaton Vance Exchange  Privilege",  the contingent deferred sales charge schedule
applicable  to the shares at the time of purchase will apply and the purchase of
Fund shares  acquired in the exchange is deemed to have  occurred at the time of
the original  purchase of the exchanged  shares.  The contingent  deferred sales
charge will be waived for shares redeemed (1) pursuant to a Withdrawal Plan (see
"Eaton Vance  Shareholders  Services"),  (2) as part of a required  distribution
from  a  tax-sheltered  retirement  plan,  or (3)  following  the  death  of all
beneficial  owners of such shares,  provided the redemption is requested  within
one year of death (a death  certificate  and other  applicable  documents may be
required).

    No  contingent  deferred  sales  charge will be imposed on Fund shares which
have  been  sold to  Eaton  Vance  or its  affiliates,  or to  their  respective
employees or clients.  The contingent  deferred sales charge will be paid to the
Principal Underwriter or the Fund.

- --------------------------------------------------------------------------------
THE FOLLOWING EXAMPLE ILLUSTRATES THE OPERATION OF THE CONTINGENT DEFERRED SALES
CHARGE.  ASSUME THAT AN INVESTOR PURCHASES $10,000 OF THE FUND'S SHARES AND THAT
16  MONTHS  LATER  THE  VALUE  OF  THE  ACCOUNT  HAS  GROWN  THROUGH  INVESTMENT
PERFORMANCE AND REINVESTMENT OF DISTRIBUTIONS TO $12,000.  THE INVESTOR THEN MAY
REDEEM UP TO $2,000 OF SHARES  WITHOUT  INCURRING A  CONTINGENT  DEFERRED  SALES
CHARGE.  IF THE INVESTOR SHOULD REDEEM $3,000 OF SHARES,  A CONTINGENT  DEFERRED
SALES CHARGE WOULD BE IMPOSED ON $1,000 OF THE REDEMPTION.  THE RATE WOULD BE 5%
BECAUSE THE  REDEMPTION  WAS MADE IN THE SECOND YEAR AFTER THE PURCHASE WAS MADE
AND THE CHARGE WOULD BE $50.
- --------------------------------------------------------------------------------


REPORTS TO SHAREHOLDERS
- ------------------------------------------------------------------------------
THE  FUND  WILL  ISSUE  TO  ITS  SHAREHOLDERS  SEMI-ANNUAL  AND  ANNUAL  REPORTS
CONTAINING FINANCIAL STATEMENTS. Financial statements included in annual reports
are audited by the Fund's independent accountants. Shortly after the end of each
calendar year, the Fund will furnish all shareholders with information necessary
for preparing Federal and state tax returns.
    

THE LIFETIME INVESTING ACCOUNT/DISTRIBUTION OPTIONS
- ------------------------------------------------------------------------------
AFTER AN INVESTOR MAKES AN INITIAL PURCHASE OF FUND 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.

   
    At least quarterly  shareholders  will receive a statement  showing complete
details of any transaction and the current balance in the account.  THE LIFETIME
INVESTING  ACCOUNT ALSO PERMITS A SHAREHOLDER TO MAKE ADDITIONAL  INVESTMENTS IN
SHARES BY  SENDING A CHECK FOR $50 OR MORE to The  Shareholder  Services  Group,
Inc.

    Any questions  concerning a shareholder's  account or services available may
be directed by telephone to EATON VANCE  SHAREHOLDER  SERVICES at  800-225-6265,
extension 2, or in writing to The Shareholder Services Group, Inc., BOS725, P.O.
Box 1559, Boston, MA 02104 (please provide the name of the shareholder, the Fund
and the account number).

    THE  FOLLOWING  DISTRIBUTION  OPTIONS  WILL  BE  AVAILABLE  TO ALL  LIFETIME
INVESTING  ACCOUNTS and may be changed as often as desired by written  notice to
the Fund's dividend  disbursing  agent,  The Shareholder  Services Group,  Inc.,
BOS725,  P.O. Box 1559,  Boston,  MA 02104. The currently  effective option will
appear on each account statement.

    Share Option -- Dividends and capital gains will be reinvested in additional
shares.

    Income Option -- Dividends  will be paid in cash,  and capital gains will be
reinvested in additional shares.

    Cash Option -- Dividends and capital gains will be paid in cash.

    The  Share  Option  will  be  assigned  if no  other  option  is  specified.
Distributions,  including those  reinvested,  will be reduced by any withholding
required under Federal income tax laws.

    If the Income  Option or Cash  Option  has been  selected,  dividend  and/or
capital gains distribution checks which are returned by the United States Postal
Service as not  deliverable or which remain uncashed for six months or more will
be  reinvested  in the account in shares at the then  current  net asset  value.
Furthermore,  the  distribution  option  on the  account  will be  automatically
changed  to the  Share  Option  until  such  time as the  shareholder  selects a
different option.

DISTRIBUTION  INVESTMENT  OPTION.  In addition to the  distribution  options set
forth above, dividends and/or capital gains may be invested in additional shares
of another Eaton Vance fund. Before selecting this option, a shareholder  should
obtain a prospectus  of the other Eaton Vance fund and  consider its  objectives
and policies carefully.

"STREET  NAME"  ACCOUNTS.  If  shares  of the Fund are held in a  "street  name"
account with an Authorized Firm, all recordkeeping,  transaction  processing and
payments of  distributions  relating to the beneficial  owner's  account will be
performed by the Authorized  Firm,  and not by the Fund and its Transfer  Agent.
Since the Fund will have no record of the  beneficial  owner's  transactions,  a
beneficial  owner should  contact the  Authorized  Firm to  purchase,  redeem or
exchange shares, to make changes in or give instructions concerning the account,
or to obtain information about the account.  The transfer of shares in a "street
name" account to an account with another dealer or to an account directly with a
Fund involves special procedures and will require the beneficial owner to obtain
historical  purchase  information  about  the  shares  in the  account  from the
Authorized Firm. 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
IN SHARES BY SENDING A CHECK FOR $50 OR MORE.
- --------------------------------------------------------------------------------



THE EATON VANCE EXCHANGE PRIVILEGE
- ------------------------------------------------------------------------------

Shares of the Fund  currently  may be exchanged  for shares of one or more other
funds in the Eaton Vance  Marathon  Group of Funds (which  includes  Eaton Vance
Equity-Income  Trust and any EV  Marathon  fund,  except  Eaton Vance Prime Rate
Reserves)  or Eaton  Vance  Money  Market  Fund,  which are  distributed  with a
contingent  deferred sales charge, on the basis of the net asset value per share
of each fund at the time of the exchange, provided that such exchange offers are
available  only in states where shares of the fund being acquired may be legally
sold.

    Each exchange  must involve  shares which have a net asset value of at least
$1,000. 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.  The Fund 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 Shareholder  Services Group, Inc. makes exchanges at the next determined
net asset value after  receiving an exchange  request in good order (see "How to
Redeem  Fund  Shares").   Consult  The  Shareholder  Services  Group,  Inc.  for
additional  information  concerning  the exchange  privilege.  Applications  and
prospectuses of other funds are available from Authorized Firms or the Principal
Underwriter.  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.

    No contingent deferred sales charge is imposed on exchanges. For purposes of
calculating  the contingent  deferred sales charge upon the redemption of shares
acquired  in  an  exchange,   the  contingent  deferred  sales  charge  schedule
applicable  to the shares at the time of purchase will apply and the purchase of
shares  acquired in one or more exchanges is deemed to have occurred at the time
of the original  purchase of the exchanged shares.  For the contingent  deferred
sales charge  schedule  applicable  to the Eaton Vance  Marathon  Group of Funds
(except EV Marathon  Strategic Income Fund and Class I shares of any EV Marathon
Limited Maturity Fund), see "How to Redeem Fund Shares". The contingent deferred
sales charge schedule  applicable to EV Marathon Strategic Income Fund and Class
I shares of any EV Marathon  Limited  Maturity Fund is 3%, 2.5%, 2% or 1% in the
event of a  redemption  occurring  in the first,  second,  third or fourth year,
respectively, after the original share purchase.

    Shares of the other  funds in the Eaton  Vance  Marathon  Group of Funds and
shares of Eaton Vance Money Market Fund may be exchanged  for Fund shares on the
basis of the net asset value per share of each fund at the time of the exchange,
but  subject to any  restrictions  or  qualifications  set forth in the  current
prospectus of any such fund.

    Telephone  exchanges are accepted by The Shareholder  Services  Group,  Inc.
provided  that  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).  Shares acquired by telephone
exchange must be registered in the same name(s) and with the same address as the
shares being  exchanged.  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 result in a taxable gain or loss.


EATON VANCE SHAREHOLDER SERVICES
- ------------------------------------------------------------------------------
THE FUND OFFERS THE FOLLOWING  SERVICES,  WHICH ARE VOLUNTARY,  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, are available from Authorized Firms or 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 EV
Marathon  Government  Obligations 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 shareholder,  the
Fund and the account number should accompany each investment.

BANK AUTOMATED INVESTING -- FOR REGULAR SHARE ACCUMULATION:  Cash investments of
$50  or  more  may  be  made  automatically  each  month  or  quarter  from  the
shareholder's  bank account.  The $1,000  minimum  initial  investment and small
account redemption policy are waived for these accounts.

WITHDRAWAL  PLAN: A shareholder may draw on  shareholdings  systematically  with
monthly or quarterly checks in an aggregate amount that does not exceed annually
12% of the account balance at the time the plan is established. Such amount will
not be subject to a contingent  deferred  sales charge.  See "How to Redeem Fund
Shares". A minimum deposit of $5,000 in shares is required.

REINVESTMENT PRIVILEGE: A SHAREHOLDER WHO HAS REPURCHASED OR REDEEMED SHARES MAY
REINVEST,  WITH CREDIT FOR ANY  CONTINGENT  DEFERRED  SALES  CHARGES PAID ON THE
REPURCHASED  OR  REDEEMED  SHARES,  ANY  PORTION  OR ALL OF  THE  REPURCHASE  OR
REDEMPTION PROCEEDS (PLUS THAT AMOUNT NECESSARY TO ACQUIRE A FRACTIONAL SHARE TO
ROUND  OFF THE  PURCHASE  TO THE  NEAREST  FULL  SHARE)  IN  SHARES OF THE FUND,
provided that the  reinvestment is effected within 30 days after such repurchase
or  redemption.  Shares  are  sold  to a  reinvesting  shareholder  at the  next
determined net asset value following  timely receipt of a written purchase order
by the Principal  Underwriter or by the Fund (or by the Fund's Transfer  Agent).
To the extent  that any  shares of the Fund are sold at a loss and the  proceeds
are  reinvested  in shares of the Fund (or other shares of the Fund are acquired
within the period  beginning 30 days before and ending 30 days after the date of
the  redemption)  some or all of the loss generally will not be allowed as a tax
deduction.  Shareholders  should  consult their tax advisers  concerning the tax
consequences of reinvestments.

TAX-SHELTERED RETIREMENT PLANS:  Shares of the Fund are available for purchase
in connection with the following tax-sheltered retirement plans:

    --Pension  and  Profit   Sharing   Plans  for   self-employed   individuals,
      corporations and non-profit organizations;

    --Individual  Retirement  Account  Plans  for  individuals  and  their  non-
      employed spouses; and

    --403(b) Retirement Plans for employees of public school systems, hospitals,
      colleges and non-profit  organizations meeting certain requirements of the
      Code.

    Detailed information concerning these plans, including certain exceptions to
minimum investment requirements,  and copies of the plans are available from the
Principal   Underwriter.   This   information   should  be  read  carefully  and
consultation  with an attorney or tax adviser may be advisable.  The information
sets forth the  service  fee  charged for  retirement  plans and  describes  the
Federal  income  tax  consequences  of  establishing  a plan.  Under all  plans,
dividends  and  distributions  will be  automatically  reinvested  in additional
shares.

DISTRIBUTIONS AND TAXES
- ------------------------------------------------------------------------------
SUBSTANTIALLY  ALL  OF THE  INVESTMENT  INCOME  ALLOCATED  TO  THE  FUND  BY THE
PORTFOLIO, LESS THE FUND'S DIRECT AND ALLOCATED EXPENSES, WILL BE DECLARED DAILY
AS A DISTRIBUTION TO FUND  SHAREHOLDERS OF RECORD AT THE TIME OF DECLARATION AND
WILL GENERALLY BE TAXABLE TO SHAREHOLDERS AS ORDINARY  INCOME,  WHETHER TAKEN IN
CASH OR REINVESTED IN ADDITIONAL SHARES.  Such  distributions,  whether taken in
cash  or  reinvested  in  additional  shares,  will  ordinarily  be  paid on the
fifteenth  day of  each  month  or  the  next  business  day  thereafter.  Daily
distribution  crediting  will commence on the day that  collected  funds for the
purchase of Fund shares are available at the Transfer Agent.  Distributions from
net short-term  capital gains and certain net foreign exchange gains are taxable
to shareholders as ordinary income, and distributions from net long-term capital
gains are taxable to shareholders as long-term  capital gains,  whether received
in cash or  additional  shares of the Fund and  regardless of the length of time
Fund shares have been owned by the shareholders. Gains or losses attributable to
transactions by the Portfolio in options on securities, certain currency forward
contracts,  futures  contracts  and  options  on  futures  may be treated as 40%
short-term and 60% long-term  capital gains or losses or, in the case of certain
of such transactions relating to foreign currencies,  as ordinary income or loss
for Federal income tax purposes.  The Portfolio may have to limit its activities
in these  transactions in order to enable the Fund to maintain its qualification
as a regulated investment company.

    The amount of the Fund's distributions will vary from time to time depending
on general  economic and market  conditions,  the composition of the Portfolio's
investments, its current investment strategies and the operating expenses of the
Fund and the  Portfolio.  While  distributions  will  vary  from time to time in
response to the factors referred to above, the Fund's management will attempt to
pursue a policy of maintaining a relatively stable monthly  distribution payment
to its shareholders.  The  distributions  paid by the Fund during any particular
period  may be more or less than the  amount of net  investment  income  and net
short-term  capital gain  actually  earned by the Portfolio and allocated to the
Fund during such period.  The Portfolio has elected  mixed  straddle  accounting
under the Code for one or more designated classes of activities  involving mixed
straddles.

    The Portfolio is required to accrue  original  issue discount on zero coupon
and certain other  securities and has elected to accrue market  discount on debt
obligations which are purchased at a market discount. While enhancing the Fund's
current  return,  such accrual will also  accelerate  the Fund's  recognition of
interest  income,  distributions  of which will be taxable as  ordinary  income.
Furthermore,  because the Fund seeks to stabilize monthly distribution  payments
and the Portfolio has elected mixed  straddle  accounting  under the Code, it is
possible that a portion of the Fund's  aggregate  distributions  during any year
will be treated as a return of capital for tax  purposes,  rather  than  taxable
distributions   of  dividends  or  capital  gains.  The  Fund  will  inform  the
shareholders  after  the  end of  each  year  what  portion,  if  any,  of  such
distributions constitutes a return of capital for tax purposes.

    Shareholders will receive annually tax information notices and Forms 1099 to
assist in the  preparation  of their Federal and state tax returns for the prior
calendar year's distributions,  proceeds from the redemption or exchange of Fund
shares, and Federal income tax (if any) withheld by the Fund's Transfer Agent.
    

    In order to qualify as a regulated  investment  company under the Code,  the
Fund must satisfy  certain  requirements  relating to the sources of its income,
the  distribution  of its income,  and the  diversification  of its  assets.  In
satisfying  these  requirements,  the Fund  will  treat  itself  as  owning  its
proportionate  share of each of the  Portfolio's  assets and as  entitled to the
income of the Portfolio properly attributable to such share.

   
- --------------------------------------------------------------------------------
AS A REGULATED  INVESTMENT COMPANY UNDER THE CODE, THE FUND DOES NOT PAY FEDERAL
INCOME OR EXCISE TAXES TO THE EXTENT UTHAT IT  DISTRIBUTES TO  SHAREHOLDERS  ITS
NET  INVESTMENT  INCOME AND NET REALIZED  CAPITAL GAINS IN  ACCORDANCE  WITH THE
TIMING  REQUIREMENTS  IMPOSED BY THE CODE. AS A PARTNERSHIP  UNDER THE CODE, THE
PORTFOLIO DOES NOT PAY FEDERAL INCOME OR EXCISE TAXES.
- --------------------------------------------------------------------------------



PERFORMANCE INFORMATION
- ------------------------------------------------------------------------------
FROM TIME TO TIME,  THE FUND MAY ADVERTISE ITS YIELD AND/OR AVERAGE ANNUAL TOTAL
RETURN.  The Fund's  current yield is calculated by dividing the net  investment
income per share during a recent 30-day period by the maximum offering price per
share  (net  asset  value)  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 computing the average annual  percentage change in value of $1,000
invested at the maximum  public  offering  price (net asset value) for specified
periods ending with the most recent calendar quarter,  assuming  reinvestment of
all  distributions.  The  average  annual  total  return  calculation  assumes a
complete  redemption  of the  investment  and the  deduction  of any  applicable
contingent  deferred  sales  charge at the end of the period.  The Fund may also
publish annual and cumulative total return figures from time to time.

    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 (net asset value).  The Fund's  effective  distribution
rate  is  computed  by  dividing  the  distribution  rate by the  ratio  used to
annualize the most recent monthly  distribution  and  reinvesting  the resulting
amount for a full year on the basis of such ratio.  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 debt  obligations  held by the
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 and short-term  capital gain actually earned
by the Fund during the month.

    The  Fund may also  publish  total  return  figures  which do not take  into
account  any  contingent  deferred  sales  charge  which  may  be  imposed  upon
redemptions at the end of the specified  period.  Any  performance  figure which
does not take into account the contingent deferred sales charge would be reduced
to the extent such charge is imposed upon a redemption.

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

<PAGE>
INVESTMENT ADVISER OF 
GOVERNMENT OBLIGATIONS PORTFOLIO
Boston Management and Research
24 Federal Street
Boston, MA 02110

ADMINISTRATOR OF EV MARATHON 
GOVERNMENT OBLIGATIONS FUND
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
Coopers & Lybrand L.L.P.
One Post Office Square
Boston, MA  02109
    


EV MARATHON
GOVERNMENT OBLIGATIONS FUND
24 FEDERAL STREET
BOSTON, MA 02110

M-GOP

EV MARATHON
GOVERNMENT 
OBLIGATIONS
FUND

   
PROSPECTUS
MAY 1, 1995
    

<PAGE>

   

                                    PART A
                     INFORMATION REQUIRED IN A PROSPECTUS

                  EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND

    EV  TRADITIONAL  GOVERNMENT  OBLIGATIONS  FUND (THE "FUND") IS A MUTUAL FUND
SEEKING A HIGH CURRENT RETURN, BY INVESTING IN SECURITIES ISSUED,  GUARANTEED OR
OTHERWISE  BACKED BY THE U.S.  GOVERNMENT  AND  ENGAGING  IN  ACTIVE  MANAGEMENT
STRATEGIES. THE FUND INVESTS ITS ASSETS IN GOVERNMENT OBLIGATIONS PORTFOLIO (THE
"PORTFOLIO"),   A  DIVERSIFIED  OPEN-END  INVESTMENT  COMPANY  HAVING  THE  SAME
INVESTMENT  OBJECTIVE  AS THE FUND,  RATHER  THAN BY DIRECTLY  INVESTING  IN AND
MANAGING ITS OWN PORTFOLIO OF SECURITIES AS WITH HISTORICALLY  STRUCTURED MUTUAL
FUNDS.  THE FUND IS A SERIES OF EATON VANCE  GOVERNMENT  OBLIGATIONS  TRUST (THE
"TRUST").

    Shares of the Fund are not  deposits or  obligations  of, or  guaranteed  or
endorsed  by,  any bank or other  insured  depository  institution,  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.

    This Prospectus is designed to provide you with  information you should know
before investing.  Please retain this document for future reference. A Statement
of Additional  Information  dated May 1, 1995 for the Fund, as supplemented from
time to time, 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. (the "Principal Underwriter"), 24 Federal Street, Boston, MA
02110 (telephone (800) 225-6265).  The Portfolio's  investment adviser is Boston
Management and Research (the "Investment Adviser"), a wholly-owned subsidiary of
Eaton Vance  Management,  and Eaton Vance Management is the  administrator  (the
"Administrator")  of the Fund.  The  offices of the  Investment  Adviser and the
Administrator are located at 24 Federal Street, Boston, MA 02110.

- ------------------------------------------------------------------------------
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>

                                                   Page                                                 Page
<S>                                                <C>   <C>                                            <C>
Shareholder and Fund Expenses .....................   2  How to Redeem Fund Shares .....................  15
The Fund's Financial Highlights ...................   3  Reports to Shareholders .......................  16
The Fund's Investment Objective ...................   4  The Lifetime Investing Account/Distribution
How the Fund and the Portfolio Invest their Assets    4     Options ....................................  16
Organization of the Fund and the Portfolio ........   9  The Eaton Vance Exchange Privilege ............  17
Management of the Fund and the Portfolio ..........  11  Eaton Vance Shareholder Services ..............  18
Service Plan ......................................  12  Distributions and Taxes .......................  19
Valuing Fund Shares ...............................  12  Performance Information .......................  21
How to Buy Fund Shares ............................  13  Statement of Intention and Escrow Agreement ...  21
- ------------------------------------------------------------------------------------------------------------
                                         PROSPECTUS DATED MAY 1, 1995
</TABLE>

<PAGE>
<TABLE>
<CAPTION>
SHAREHOLDER AND FUND EXPENSES\1/
- ------------------------------------------------------------------------------
<S>                                                           <C>
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

ANNUAL FUND AND ALLOCATED  PORTFOLIO  OPERATING  EXPENSES<F2>
(as a percentage of average  daily net  assets)
  Investment  Adviser  Fee
                                                              0.74%
  Rule  12b-1  Fees (Service Plan)                            0.22% 
Other Expenses (including Interest and Securities
 Lending Expenses of 0.56%)                                   0.77%
                                                              -----
Total Operating Expenses                                      1.73%
                                                              =====
                                                              

<CAPTION>
EXAMPLE\2/:                                                               1 YEAR       3 YEARS      5 YEARS     10 YEARS
- -----------                                                               ------       -------      -------     --------

<S>                                                                       <C>          <C>          <C>         <C>
An investor would pay the following maximum initial sales charge and
 expenses on a $1,000 investment, assuming (a) 5% annual return and (b)
redemption at the end of each time period:                                  $54          $90         $128         $234
Notes:
<FN>
<F1>The purpose of the above table and Example is to summarize the  aggregate  expenses of the Fund and the Portoflio and
    to assist investors in understanding  the various costs and expenses that investors in the Fund will bear directly or
    indirectly.  The Trustees of the Trust believe that over time the  aggregate  per share  expenses of the Fund and the
    Portfolio  should be  approximately  equal to the per share expenses which the Fund would incur if the Trust retained
    the services of an  investment  adviser and the assets of the Fund were  invested  directly in the type of securities
    being held by the Portfolio.  The percentages  indicated as Annual Fund and Allocated Portfolio Operating Expenses in
    the table and the amounts included in the Example are based on the Fund's and the Portfolio's  results for the fiscal
    year ended December 31, 1994. The Example should not be considered a  representation  of past or future  expenses and
    actual expenses may be greater or less than those shown. The Example assumes a 5% annual return and the Fund's actual
    performance may result in an annual return greater or less than 5%. For further information regarding the expenses of
    both the Fund and the Portfolio see "The Fund's Financial Highlights",  "Organization of the Fund and the Portfolio",
    "Management of the Fund and the Portfolio" and "How to Redeem Fund Shares".
<F2>The computation of Annual Fund and Allocated Portfolio Operating Expenses as a percentage of average daily net assets
    in the above table and of maximum  initial  sales charge and expenses  incurred on a $1,000  investment  in the above
    Example is based in part on interest expense  allocated to the Fund from the Portfolio's  borrowings and lending fees
    allocated to the Fund from the Portfolio's  securities  lending  activities during the fiscal year ended December 31,
    1994. The Portfolio's  borrowings,  interest expense,  securities  lending activities and lending fees will vary from
    year to year (see "How the Fund and the Portfolio Invest their Assets -- Active Management Strategies").  If the Fund
    had not been allocated interest expense and lending fees in 1994, Total Operating Expenses as a percentage of average
    daily net assets would have been 1.17%, and maximum initial sales charge and expenses incurred on a $1,000 investment
    for one, three, five and ten years would have been $49, $73, $99 and $174, respectively.
<F3>Other  investment  companies with  different  distribution  arrangements  and fees are investing in the Portfolio and
    additional such companies may do so in the future. See "Organization of the Fund and the Portfolio".
</TABLE>
<PAGE>
THE FUND'S FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------


    
   
The  following  information  should  be read in  conjunction  with  the  audited
financial statements included in the Statement of Additional Information, all of
which have been so  included  in  reliance  upon the report of Coopers & Lybrand
L.L.P.,  independent  accountants,  as experts in accounting and auditing, which
report is contained in the  Statement of Additional  Information.  The financial
highlights for each of the two years in the period ending  December 31, 1987 and
the six months  ended  December 31, 1985 and for the period from August 24, 1984
(commencement of operations) to December 31, 1985,  presented here, were audited
by other auditors whose report dated January 15, 1988,  expressed an unqualified
opinion  on  such  financial  highlights.   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 Principal Underwriter.


<TABLE>
<CAPTION>
                                                                                YEAR ENDED DECEMBER 31,
                                                     ------------------------------------------------------------------------------
                                                     1994<F9>       1993        1992        1991        1990        1989        1988
                                                     ------       ------      ------      ------      ------      ------      ------

<S>                                                 <C>          <C>         <C>       <C>         <C>         <C>         <C>     
Net Asset Value -- Beginning of year .............  $ 11.4800    $11.3800    $11.8000  $11.3700    $11.5200    $11.2300    $11.5400
                                                     --------     -------     -------   -------     -------     -------     -------
INCOME FROM INVESTMENT OPERATIONS:
  Net investment income ..........................  $  0.8052    $ 0.9192    $ 0.9751  $ 1.1005    $ 1.1085    $ 1.1280    $ 1.1260
  Net realized and unrealized gain (loss) on
    investments ..................................    (1.0290)     0.1058     (0.3886)   0.4395     (0.1485)     0.2745     (0.2960)
                                                     --------     -------     -------   -------     -------     -------     ------- 
    Total income from investment operations ......  $ (0.2238)   $ 1.0250    $ 0.5865  $ 1.5400    $ 0.9600    $ 1.4025    $ 0.8300
                                                     ========     =======     =======   =======     =======     =======     =======
LESS DISTRIBUTIONS:
  From net investment income .....................  $ (0.8052)   $(0.9192)   $(1.0065) $    --          --          --          --
  In excess of net investment income .............  $ (0.0310)    (0.0058)       --         --          --          --          --
                                                     --------     -------     -------   -------     -------     -------     ------
    Total distributions ..........................  $ (0.8362)   $(0.9250)   $(1.0065) $(1.1100)   $(1.1100)   $(1.1125)  $ (1.1400)
                                                     --------     -------     -------   -------     -------     -------     ------
NET ASSET VALUE -- End of year ...................  $ 10.4200    $11.4800    $11.3800  $11.8000    $11.3700    $11.5200    $11.2300
                                                     ========     =======     =======   =======     =======     =======     ======
TOTAL RETURN<F6> ..................................    (2.03)%       9.26%       5.29%     14.42%      8.97%      13.21%      7.46%
RATIOS/SUPPLEMENTAL DATA:
  Ratio of interest expense to average 
   daily net assets ...............................     0.56%<F1>   0.40%<F1>    0.31%      0.78%      1.19%       1.11%      0.66%
  Ratio of other expenses to average
   daily net assets ...............................     1.17%<F1>   1.12%<F1>    1.10%      1.18%      1.22%       1.22%      1.19%
  Ratio of net investment income to average 
   daily net assets................................     7.70%       7.86%       8.52%       9.61%      9.86%      10.02%      9.82%
PORTFOLIO TURNOVER<F7>............................         --         52%         26%         25%        22%         25%        42%
NET ASSETS, End of year (000 omitted) ............  $ 386,186    $503,150    $468,960  $ 352,480   $279,747   $ 296,405   $321,584

LEVERAGE ANALYSIS<F8>:
Amount of debt outstanding at end of
 period (000 omitted) ............................        --          --          --          --   $  4,695   $     259   $  7,006
Average daily balance of debt outstanding during
  period (000 omitted) ...........................         --    $ 2,313     $ 1,687   $   2,321   $ 11,009   $   3,218   $ 18,301
Average weekly balance of shares outstanding
during period (000 omitted) ......................         --      43,731      37,474     25,915     25,285      26,839     30,570
Average amount of debt per share during period ...         --    $  0.053    $  0.045  $   0.090    $ 0.435   $   0.120   $  0.599


<PAGE>

                                                             1987<F5>       1986<F5>       1985<F5><F2>     1985<F5><F3>
                                                             --------       --------       ------------     ------------
<S>                                                          <C>            <C>              <C>              <C>     
Net Asset Value -- Beginning of year ..............          $12.3600       $12.2600         $12.1800         $11.6600
                                                              -------        -------          -------          -------
INCOME FROM INVESTMENT OPERATIONS:
  Net investment income ...........................          $ 1.1360       $ 1.1580         $ 0.5990         $ 1.0140
  Net realized and unrealized gain (loss) on
    investments ...................................           (0.6610)        0.3920           0.2310           0.6260
                                                              -------        -------          -------          -------
    Total income from investment operations .......          $ 0.4750       $ 1.5500         $ 0.8300         $ 1.6400
                                                              =======        =======          =======          =======
LESS DISTRIBUTIONS:
  From net investment income ......................          $(1.1600)      $(1.2000)        $(0.6000)        $(0.8700)
  In excess of net investment income ..............           (0.1350)       (0.2500)         (0.1500)         (0.2500)
                                                              -------        -------          -------          -------
Total distributions ...............................          $(1.2950)      $(1.4500)        $(0.7500)        $(1.1200)
                                                              -------        -------          -------          -------
NET ASSET VALUE -- End of year ....................          $11.5400       $12.3600         $12.2600         $12.1800
                                                              =======        =======          =======          =======
TOTAL RETURN<F6>...................................              4.17%         13.37%            7.17%           14.56%
RATIOS/SUPPLEMENTAL DATA:
  Ratio of interest expense to average daily net
    assets .......................................               0.22%         0.26%             0.51%<F4>        0.21%
  Ratio of other expenses to average daily net
    assets .......................................               1.19%         1.20%             1.23%<F4>        1.10%
  Ratio of net investment income to average daily
   net assets                                                    9.63%         9.40%            10.12%<F4>        9.70%
PORTFOLIO TURNOVER<F7>............................                 36%           37%               19%              82%
NET ASSETS, End of year (000 omitted) ............           $374,936       $416,095         $336,859         $250,236

LEVERAGE ANALYSIS<F8>
Amount of debt outstanding at end of period
 (000 omitted) ...................................           $ 18,285       $ 11,076         $ 16,356         $ 16,887
Average daily balance of debt outstanding during
  period (000 omitted) ...........................           $ 10.900       $ 10,421         $ 11,722         $  1,883
Average weekly balance of shares outstanding
during period (000 omitted) ......................             34,372         27,263           17,874            6,633
Average amount of debt per share during period ...           $  0.317       $  0.382         $  0.656         $  0.284 
<FN>
<F1>Includes the Fund's share of Government Obligations Portfolio's allocated expenses.
<F2>Six months  ended  December  31, 1985 (The Fund  changed its year end from June 30 to December 31, effective July 1, 1985).
<F3>August 24, 1984 to June 30, 1985.
<F4>Computed on an annualized basis.
<F5>Audited by the Fund's previous auditors.
<F6>Total return is calculated  assuming a purchase at the net asset value on the first day and a sale at the net asset value
    on the last day of each period  reported.  Dividends and  distributions,  if any, are assumed to be reinvested at the net
    asset value on the payable date.
<F7>Portfolio  Turnover  represents  the rate of  portfolio  activity  for the period  while the Fund was making  investments
    directly in securities.  The portfolio  turnover for the period since the Fund transferred its assets to the Portfolio is
    shown in the Portfolio's financial statements which are included in the Fund's Statement of Additional Information.
<F8>The Leverage  Analysis is for the period prior to the close of business  October 27, 1993, when the Fund  transferred its
    assets to the  Portfolio.  For the year ended  December  31,  1994,  the  leverage  analysis is shown in the  Portfolio's
    financial statements which are included in the Fund's Statement of Additional Information.
<F9>As of January 1, 1994 the Fund  discontinued the use of equalization  accounting.  (See "Notes to Financial  Statements",
    which are included in the Fund's Statement of Additional Information.)
</TABLE>
    

<PAGE>
THE FUND'S INVESTMENT OBJECTIVE
- ------------------------------------------------------------------------------

   
EV TRADITIONAL  GOVERNMENT OBLIGATIONS FUND'S INVESTMENT OBJECTIVE IS TO REALIZE
A HIGH CURRENT RETURN. The Fund currently seeks to meet its investment objective
by  investing  its assets in the  Government  Obligations  Portfolio  a separate
registered  investment  company  which  has the same  investment  objective  and
policies as the Fund. The Fund's and the Portfolio's  investment  objectives are
nonfundamental  and may be changed when  authorized by a vote of the Trustees of
the Trust or the Portfolio,  respectively, without obtaining the approval of the
Fund's  shareholders or the investors in the Portfolio,  as the case may be. The
Trustees of the Trust have no present  intention to change the Fund's  objective
and intend to submit any proposed material change in the investment objective to
shareholders in advance for their approval.


HOW THE FUND AND THE PORTFOLIO INVEST THEIR ASSETS
- ------------------------------------------------------------------------------

IN SEEKING HIGH CURRENT  RETURN,  THE PORTFOLIO  INVESTS IN  SECURITIES  ISSUED,
GUARANTEED OR OTHERWISE BACKED BY THE U.S. GOVERNMENT, INCLUDING MORTGAGE-BACKED
SECURITIES OF FEDERAL AGENCIES AND FEDERALLY CHARTERED CORPORATIONS, AND ENGAGES
IN ACTIVE  MANAGEMENT  STRATEGIES,  INCLUDING  FUTURES  TRANSACTIONS AND RELATED
TECHNIQUES PRIMARILY FOR HEDGING PURPOSES.  The Portfolio's  management believes
that a high  current  return  may be  derived  from  yields  on U.S.  Government
securities,  including  market discount  accrued on obligations  purchased below
their stated redemption value.

U.S. GOVERNMENT SECURITIES. U.S. Government securities include (1) U.S. Treasury
obligations,  which  differ in their  interest  rates,  maturities  and times of
issuance:  U.S.  Treasury bills  (maturities of one year or less), U.S. Treasury
notes  (maturities  of one to ten  years)  and U.S.  Treasury  bonds  (generally
maturities of greater than ten years) and (2)  obligations  issued or guaranteed
by U.S. Government agencies and instrumentalities  which are supported by any of
the following: (a) the full faith and credit of the U.S. Treasury, (b) the right
of the issuer to borrow an amount  limited to a specific line of credit from the
U.S. Treasury,  (c) discretionary  authority of the U.S.  Government to purchase
certain  obligations of the U.S. Government agency or instrumentality or (d) the
credit of the agency or  instrumentality.  The  Portfolio may also invest in any
other  security  or  agreement  collateralized  or  otherwise  secured  by  U.S.
Government  securities.  Agencies and  instrumentalities  of the U.S. Government
include but are not limited to:  Federal Land Banks,  Federal  Financing  Banks,
Banks for Cooperatives,  Federal  Intermediate  Credit Banks, Farm Credit Banks,
Federal  Home Loan Banks,  Federal  Home Loan  Mortgage  Corporation  ("FHLMC"),
Federal National Mortgage  Association  ("FNMA"),  Government  National Mortgage
Association ("GNMA"),  Student Loan Marketing Association,  United States Postal
Service, Small Business Administration, Tennessee Valley Authority and any other
enterprise  established  or sponsored by the U.S.  Government.  Because the U.S.
Government   generally   is   not   obligated   to   provide   support   to  its
instrumentalities,  the  Portfolio  will invest in  obligations  issued by these
instrumentalities only if the Investment Adviser determines that the credit risk
with respect to such obligations is minimal.

MORTGAGE-BACKED   SECURITIES.   The  Portfolio  may  invest  in  mortgage-backed
securities that are either issued by the U.S.  Government or one of its agencies
or instrumentalities  or, if privately issued,  collateralized by mortgages that
are insured, guaranteed or otherwise backed by the U.S. Government, its agencies
or  instrumentalities.   Mortgage-backed   securities  represent   participation
interests  in  pools  of  adjustable  and  fixed-rate   mortgage  loans.  Unlike
conventional  debt  obligations,   mortgage-backed  securities  provide  monthly
payments derived from the monthly interest and principal payments (including any
prepayments) made by the individual  borrowers on the pooled mortgage loans. The
mortgage loans underlying  mortgage-backed securities are generally subject to a
greater rate of principal  prepayments in a declining  interest rate environment
and to a lesser rate of principal  prepayments  in an  increasing  interest rate
environment. Under certain interest and prepayment rate scenarios, the Portfolio
may fail to  recover  the  full  amount  of its  investment  in  mortgage-backed
securities,  notwithstanding  any  direct  or  indirect  governmental  or agency
guarantee.  Because faster than expected prepayments must usually be invested in
lower yielding  securities,  mortgage-backed  securities are less effective than
conventional  bonds in  "locking  in" a  specified  interest  rate.  To mitigate
prepayment   risk,   the   Investment   Adviser   considers   the  selection  of
mortgage-backed  securities  that  as a group  have a  history  of  more  stable
prepayment  rates relative to interest rate  fluctuations.  In a rising interest
rate  environment,  a declining  prepayment rate will extend the average life of
many  mortgage-backed  securities.  This  possibility  is often  referred  to as
extension  risk.  Extending  the  average  life  of a  mortgage-backed  security
increases the risk of  depreciation  due to future  increases in market interest
rates. As of December 31, 1994, the Portfolio had  approximately  40% of its net
assets invested in FNMA Mortgage-Backed  Certificates,  approximately 43% of its
net assets invested in Participation  Certificates of FHLMC and approximately 8%
of its net assets  invested in GNMA  Certificates.  FNMA  guarantees  the timely
payment of principal  and interest of its  Certificates,  FHLMC  guarantees  the
timely  payment of interest  and  ultimate  collection  of the  principal of its
Participation  Certificates,  and GNMA  Certificates  are guaranteed by the full
faith and credit of the U.S. Government.

    The  Portfolio  may  also  invest  in  classes  of  collateralized  mortgage
obligations ("CMOs") and various other  mortgage-backed  securities.  Senior CMO
classes will typically have priority over residual CMO classes as to the receipt
of principal and/or interest payments on the underlying  mortgages.  In choosing
among CMO  classes,  the  Investment  Adviser  will  evaluate  the total  income
potential of each class and other factors. If such obligations or securities are
privately issued they will currently be considered by the Investment  Adviser as
possible  investments  for the  Portfolio  only when the mortgage  collateral is
insured, guaranteed or otherwise backed by the U.S. Government or one or more of
its agencies or  instrumentalities.  As of December 31, 1994,  the Portfolio had
approximately  6% of its net assets  invested in CMOs  (including  one which was
privately issued).

    The  Portfolio  may invest in  securities  that  fluctuate  in value with an
index. Such securities generally will either be issued by the U.S. Government or
one of its agencies or instrumentalities or, if privately issued, collateralized
by  mortgages  that are  insured,  guaranteed  or  otherwise  backed by the U.S.
Government,  its agencies or  instrumentalities.  The interest  rate or, in some
cases,  the principal  payable at the maturity of an indexed security may change
positively  or inversely in relation to one or more  interest  rates,  financial
indices,  securities prices or other financial indicators  ("reference prices").
An indexed  security may be  leveraged  to the extent that the  magnitude of any
change in the  interest  rate or principal  payable on an indexed  security is a
multiple of the change in the reference  price.  Thus,  indexed  securities  may
decline  in value due to  adverse  market  changes in  reference  prices.  As of
December  31,   1994,   the   Portfolio   held  no  such   securities.   Because
mortgage-backed   and  indexed   securities  derive  their  value  from  another
instrument,  security or index, they are considered  derivative debt securities,
and are subject to different  combinations  of prepayment,  extension,  interest
rate and/or other market risks.

    The Portfolio may enter into  contracts to purchase  securities  for a fixed
price at a future date beyond the  customary  settlement  time if the  Portfolio
holds and maintains until the settlement date in a segregated account cash, U.S.
Government  securities  and  liquid  high-grade  debt  obligations  in an amount
sufficient  to  meet  the  purchase  price,  or if  the  Portfolio  enters  into
offsetting  contracts  for the forward sale of other  securities  it owns.  Such
contracts are  customarily  referred to as "forward  commitments"  and involve a
risk of loss if the value of the security to be purchased  declines prior to the
settlement date.

    The principal of and/or interest on certain U.S. Government securities which
may be purchased  by the  Portfolio  could be (a) payable in foreign  currencies
rather than U.S.  dollars or (b)  increased or diminished as a result of changes
in the value of the U.S. dollar relative to the value of foreign currencies. The
value of such  portfolio  securities  denominated  in foreign  currencies may be
affected  favorably  or  unfavorably  by changes in the  exchange  rate  between
foreign  currencies and the U.S. dollar.  In order to limit the risk inherent in
this type of security, it is the current policy of the Portfolio not to purchase
any such  security  if after  such  purchase  (i) more than 5% of its net assets
(taken at market value) would be invested in securities  denominated  in foreign
currencies  or (ii) more than 2% of its net assets (taken at market value) would
be invested in securities denominated in any one foreign currency.

    The Portfolio may from time to time have temporary investments in short-term
debt obligations  (including  certificates of deposit,  bankers' acceptances and
commercial  paper)  pending the making of other  investments  or as a reserve to
service redemptions and repurchases of its shares.

ACTIVE MANAGEMENT STRATEGIES
The  Portfolio  may engage in several  active  management  strategies to enhance
income and reduce investment risk. Each strategy requires the Investment Adviser
to consider special factors.

SECURITIES  LENDING.  The  Portfolio  may seek to increase its income by lending
portfolio securities to broker-dealers or other institutional borrowers.  During
the existence of a loan,  the Portfolio  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  Portfolio  may  pay  lending  fees to such
borrowers.  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  Portfolio's  management to be of good standing and
when, in the judgment of the Portfolio's management, the consideration which can
be earned from  securities  loans of this type justifies the attendant risk. The
financial  condition of the borrower will be monitored by the Investment Adviser
on an ongoing basis.  The value of the securities  loaned will not exceed 30% of
the  Portfolio's  total  assets.  During the year ended  December 31, 1994,  the
Portfolio typically had outstanding  approximately $70 million in collateralized
loans with terms of 7 days.

FUTURES CONTRACTS AND OTHER DERIVATIVE  INSTRUMENTS.  The Portfolio may purchase
or sell derivative  instruments  (which are instruments  that derive their value
from  another  instrument,   security,  index  or  currency)  to  hedge  against
fluctuations in interest rates, securities prices or currency exchange rates, to
change the duration of the Portfolio's fixed income  portfolio,  as a substitute
for the purchase or sale of securities or currency,  or to enhance  return.  The
Portfolio's  transactions in derivative  instruments may include the purchase or
sale of futures contracts on securities,  (such as U.S. Government  securities),
indices,   other  financial   instruments  (such  as  certificates  of  deposit,
Eurodollar  time  deposits,  and  economic  indices) or  currencies;  options on
futures  contracts;  exchange-traded  and  over-the-counter  ("OTC")  options on
securities;  indices or  currencies;  and forward  contracts to purchase or sell
currencies.  All of  the  Portfolio's  transactions  in  derivative  instruments
involve a risk of loss or depreciation due to  unanticipated  adverse changes in
interest rates,  securities  prices or currency exchange rates, the inability to
close out a  position  or default by the  counterparty.  The loss on  derivative
instruments  (other than purchased  options) may exceed the Portfolio's  initial
investment in these instruments.  In addition, the Portfolio may lose the entire
premium paid for  purchased  options that expire  before they can be  profitably
exercised by the Portfolio.  The Portfolio incurs  transaction  costs in opening
and closing positions in derivative instruments.  There can be no assurance that
the Investment  Adviser's use of derivative  instruments will be advantageous to
the Portfolio.

    The Portfolio's  success in using derivative  instruments to hedge portfolio
assets  depends  on the  degree  of price  correlation  between  the  derivative
instrument and the hedged asset.  Imperfect correlation may be caused by several
factors, including temporary price disparities among the trading markets for the
derivative  instrument,  the assets underlying the derivative instrument and the
Portfolio's  assets. OTC derivative  instruments  involve a heightened risk that
the issuer or counterparty will fail to perform its contractual obligations. The
staff  of the  Securities  and  Exchange  Commission  takes  the  position  that
purchased OTC options, assets used as cover for written OTC options, and certain
other derivative instruments (and securities) are subject to the Portfolio's 15%
limit  on  illiquid  investments.  The  Portfolio's  ability  to  terminate  OTC
derivative  instruments may depend on the cooperation of the  counterparties  to
such  instruments.  For thinly traded derivative  securities and contracts,  the
only source of price quotations may be the selling dealer or counterparty.

    To the extent that the Portfolio enters into futures  contracts,  options on
futures  contracts  and  options on  foreign  currencies  traded on an  exchange
regulated by the Commodity  Futures Trading  Commission  ("CFTC"),  in each case
that are not for bona fide  hedging  purposes  (as  defined  by the  CFTC),  the
aggregate  initial  margin and premiums  required to establish  these  positions
(excluding the amount by which options are  "in-the-money") may not exceed 5% of
the liquidation  value of the Portfolio's  portfolio,  after taking into account
unrealized  profits and  unrealized  losses on any  contracts  the Portfolio has
entered into.

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  Portfolio  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 fixed-income  securities or changes in the investment
objectives of investors.

MORTGAGE  ROLLS.  The Portfolio may enter into mortgage  "dollar rolls" in which
the Portfolio sells mortgage-backed securities for delivery in the current month
and  simultaneously  contracts to repurchase  substantially  similar (same type,
coupon and  maturity)  securities  on a specified  future date.  During the roll
period, the Portfolio forgoes principal and interest paid on the mortgage-backed
securities.  The Portfolio is compensated by the difference  between the current
sales price and the lower forward price for the future  purchase (often referred
to as the "drop") as well as by the interest  earned on the cash proceeds of the
initial sale. A "covered roll" is a specific type of dollar roll for which there
is an offsetting  cash position or a cash  equivalent  security  position  which
matures on or before the forward settlement date of the dollar roll transaction.
The Portfolio will only enter into covered rolls.  Covered rolls are not treated
as a  borrowing  or  other  senior  security  and  will  be  excluded  from  the
calculation of the Portfolio's borrowings and other senior securities.

LEVERAGE THROUGH BORROWING.  The Portfolio may borrow from banks to increase its
portfolio  holdings of debt  securities on which call options may be written and
to acquire  U.S.  Treasury  bills which may be  deposited  with the  Portfolio's
custodian or a broker-dealer in connection with various  Portfolio  investments.
Such borrowings will be unsecured.  The Investment  Company Act of 1940 requires
the Portfolio to maintain  continuous  asset coverage of not less than 300% with
respect  to such  borrowings.  This  allows  the  Portfolio  to borrow  for such
purposes an amount  (when  taken  together  with any  borrowings  for  temporary
extraordinary or emergency  purposes as described below) equal to as much as 50%
of the value of its net assets (not  including such  borrowings).  If such asset
coverage  should decline to less than 300% due to market  fluctuations  or other
reasons,  the Portfolio  may be required to sell some of its portfolio  holdings
within three days in order to reduce the  Portfolio's  debt and restore the 300%
asset  coverage,  even  though  it may be  disadvantageous  from  an  investment
standpoint  to sell  securities at that time.  Leveraging  will  exaggerate  any
increase or decrease in the net asset value of the securities held by Portfolio,
and in that respect may be considered a speculative practice. Money borrowed for
leveraging  will be subject to  interest  costs  which may or may not exceed the
option  premiums  and  interest  received  from the  securities  purchased.  The
Portfolio  may  also  be  required  to  maintain  minimum  average  balances  in
connection  with such borrowings or to pay a commitment or other fee to maintain
a line of  credit;  either  of these  requirements  would  increase  the cost of
borrowing over the stated interest rate.

REPURCHASE  AGREEMENTS.  The Portfolio may enter into repurchase agreements with
respect to U.S. Government securities.  Under a repurchase agreement, the seller
agrees to  repurchase  such  securities  at the  Portfolio's  cost plus interest
within a specified time (normally one day). While repurchase  agreements involve
certain  risks  not  associated  with  direct  investments  in  U.S.  Government
securities,  the Portfolio follows  procedures  designed to moderate such risks.
These procedures  include  effecting  repurchase  transactions  only with large,
well-capitalized  banks. In addition, the Portfolio's repurchase agreements will
provide that the value of the collateral  underlying  the repurchase  agreements
will always be at least equal to the  repurchase  price,  including  any accrued
interest  earned on the  repurchase  agreement.  In the  event of a  default  or
bankruptcy  by a  selling  bank,  the  Portfolio  will  seek to  liquidate  such
collateral.  However,  the exercise of the  Portfolio's  right to liquidate such
collateral  would  involve  certain  costs or delays  and,  to the  extent  that
proceeds from any sale upon a default of the  obligation to repurchase  are less
than the repurchase price, the Portfolio could suffer a loss.

ADDITIONAL INVESTMENT INFORMATION
The Portfolio expects that various new types of investments,  hedging techniques
and management  strategies will be developed and made available to institutional
investors  in the future.  The  Investment  Adviser  will  consider  making such
investments or adopting such techniques or strategies if it determines that they
are  consistent  with the  Portfolio's  investment  objective and  policies.  Of
course, the total mix of the Portfolio's investments can change daily.

FLUCTUATIONS  IN VALUE.  Because  interest  yields on U.S.  Government and other
securities and  opportunities  to realize  additional  income and net gains from
active  management  strategies  will vary from time to time  because  of general
economic and market conditions and many other factors, the Fund's current return
will fluctuate,  and there can be no assurance that the Fund's objective will be
achieved.  As a result of their high credit quality and market  liquidity,  U.S.
Government  securities generally provide a lower current return than obligations
of other issuers.  As with other debt securities,  the value of U.S.  Government
securities  changes as interest rates  fluctuate.  Fluctuations  in the value of
securities  held by the Portfolio  will not affect  interest  income on existing
portfolio  securities but will be reflected in the Fund's net asset value. Thus,
a decrease in interest rates will  generally  result in an increase in the value
of Fund shares.  Conversely,  during periods of rising interest rates, the value
of Fund shares will generally decline.  The magnitude of these fluctuations will
generally be greater at times when the Portfolio's  average  maturity is longer.
In addition,  as set forth above,  the  derivative  securities the Portfolio may
hold may  magnify  those  risks and pose  additional  risks.  Active  management
techniques,  if  successful,  may only partly offset these risks.  Shares of the
Fund are not government guaranteed.

INVESTMENT  RESTRICTIONS.  The  Fund  and the  Portfolio  have  adopted  certain
fundamental  investment  restrictions  which  are  enumerated  in  detail in the
Statement  of  Additional  Information  and  which  may  not be  changed  unless
authorized  by a  shareholder  vote and an investor  vote,  respectively.  These
restrictions are designed to reduce  investment risk. Except for such enumerated
restrictions,  the  investment  objective  and  policies  of the  Fund  and  the
Portfolio are not  fundamental  policies,  and accordingly may be changed by the
Trustees of the Trust and the  Portfolio  without  obtaining the approval of the
Fund's  shareholders  or the investors in the Portfolio,  as the case may be. If
any changes were made in the Fund's investment objective, the Fund might have an
investment  objective  different from the objective which an investor considered
appropriate at the time the investor became a shareholder of the Fund.


ORGANIZATION OF THE FUND AND THE PORTFOLIO
- ------------------------------------------------------------------------------

THE FUND IS A DIVERSIFIED SERIES OF EATON VANCE GOVERNMENT  OBLIGATIONS TRUST, A
BUSINESS TRUST ESTABLISHED UNDER  MASSACHUSETTS LAW PURSUANT TO A DECLARATION OF
TRUST DATED MAY 7, 1984, AS AMENDED AND  RESTATED.  THE TRUST IS A MUTUAL FUND -
AN  OPEN-END  MANAGEMENT  INVESTMENT  COMPANY.  The  Trustees  of the  Trust are
responsible for the overall management and supervision of its affairs. The Trust
may issue an unlimited number of shares of beneficial interest (no par value per
share) in one or more  series and because  the Trust can offer  separate  series
(such as the Fund) it is known as a "series  company." Each share  represents an
equal   proportionate   beneficial   interest  in  the  Fund.  When  issued  and
outstanding,  the  shares  are  fully  paid and  nonassessable  by the Trust and
redeemable  as described  under "How to Redeem Fund  Shares".  Shareholders  are
entitled  to one vote for each full share held.  Fractional  shares may be voted
proportionately.  Shares have no preemptive or conversion  rights and are freely
transferable.  In the event of the  liquidation  of the Fund,  shareholders  are
entitled  to  share  pro  rata in the  net  assets  of the  Fund  available  for
distribution to shareholders.

THE  PORTFOLIO  IS  ORGANIZED AS A TRUST UNDER THE LAWS OF THE STATE OF NEW YORK
AND  INTENDS  TO BE TREATED AS A  PARTNERSHIP  FOR  FEDERAL  TAX  PURPOSES.  The
Portfolio,  as well as the Trust,  intends to comply with all applicable Federal
and state  securities  laws. The Portfolio's  Declaration of Trust provides that
the Fund and other entities  permitted to invest in the Portfolio  (e.g.,  other
U.S. and foreign  investment  companies,  and common and commingled trust funds)
will each be liable for all obligations of the Portfolio.  However,  the risk of
the Fund  incurring  financial  loss on account of such  liability is limited to
circumstances in which both inadequate insurance exists and the Portfolio itself
is  unable  to meet its  obligations.  Accordingly,  the  Trustees  of the Trust
believe that neither the Fund nor its shareholders will be adversely affected by
reason of the Fund investing in the Portfolio.

SPECIAL INFORMATION ON THE FUND/PORTFOLIO  INVESTMENT STRUCTURE.  An investor in
the Fund  should be aware that the Fund,  unlike  mutual  funds  which  directly
acquire and manage  their own  portfolios  of  securities,  seeks to achieve its
investment  objective  by investing  its assets in an interest in the  Portfolio
(although the Fund may temporarily hold a de minimus amount of cash), which is a
separate investment company with an identical investment  objective.  Therefore,
the Fund's  interest in the  securities  owned by the Portfolio is indirect.  In
addition to selling an interest to the Fund, the Portfolio may sell interests to
other affiliated and  non-affiliated  mutual funds or  institutional  investors.
Such investors will invest in the Portfolio on the same terms and conditions and
will pay a proportionate share of the Portfolio's  expenses.  However, the other
investors  investing in the  Portfolio  are not required to sell their shares at
the  same  public  offering  price  as the  Fund  due  to  variations  in  sales
commissions  and other  operating  expenses.  Therefore,  investors  in the Fund
should be aware that these  differences  may  result in  differences  in returns
experienced by investors in the various funds that invest in the Portfolio. Such
differences  in  returns  are also  present  in other  mutual  fund  structures,
including funds that have multiple classes of shares. For information  regarding
the investment objective, policies and restrictions,  see "The Fund's Investment
Objective"  and "How the Fund and the Portfolio  Invest their  Assets".  Further
information  regarding  investment  practices  may be found in the  Statement of
Additional Information.

    The Trustees of the Trust have  considered the advantages and  disadvantages
of investing the assets of the Fund in the Portfolio,  as well as the advantages
and  disadvantages  of the  two-tier  format.  The  Trustees  believe  that  the
structure  offers  opportunities  for  substantial  growth in the  assets of the
Portfolio,  and affords the  potential  for  economies of scale for the Fund, at
least when the assets of the Portfolio exceed $500 million.  The shareholders of
the Fund have  previously  approved the policy of investing the Fund's assets in
an interest in the Portfolio.

    The Fund may withdraw  (completely redeem) all its assets from the Portfolio
at any time if the Board of Trustees of the Trust  determines  that it is in the
best  interest  of  the  Fund  to  do  so.  The  investment  objective  and  the
nonfundamental  investment policies of the Fund and the Portfolio may be changed
by the Trustees of the Trust and the Portfolio without obtaining the approval of
the shareholders of the Fund or the investors in the Portfolio,  as the case may
be. Any such change of the  investment  objective  of the Fund or the  Portfolio
will be preceded by thirty days' advance  written notice to the  shareholders of
the Fund or the investors in the Portfolio, as the case may be. In the event the
Fund withdraws all of its assets from the Portfolio, or the Board of Trustees of
the Trust determines that the investment objective of the Portfolio is no longer
consistent  with the investment  objective of the Fund, the Board of Trustees of
the Trust would  consider  what action might be taken,  including  investing the
assets  of the  Fund  in  another  pooled  investment  entity  or  retaining  an
investment adviser to manage the Fund's assets in accordance with its investment
objective.  The Fund's investment performance may be affected by a withdrawal of
all its assets from the Portfolio.

    Information regarding other pooled investment entities or funds which invest
in the Portfolio may be obtained by contacting  Eaton Vance  Distributors,  Inc.
(the "Principal  Underwriter" or "EVD"),  24 Federal Street,  Boston,  MA 02110,
(617) 482-8260.  Smaller investors in the Portfolio may be adversely affected by
the  actions of larger  investors  in the  Portfolio.  For  example,  if a large
investor  withdraws from the Portfolio,  the remaining  investors may experience
higher  pro  rata  operating   expenses,   thereby   producing   lower  returns.
Additionally,  the  Portfolio  may become less  diverse,  resulting in increased
portfolio  risk, and experience  decreasing  economies of scale.  However,  this
possibility exists as well for historically structured funds which have large or
institutional investors.
    

    Until  recently,  the  Administrator   sponsored  and  advised  historically
structured funds. Funds which invest all their assets in interests in a separate
investment  company are a relatively new development in the mutual fund industry
and,  therefore,  the  Fund  may  be  subject  to  additional  regulations  than
historically structured funds.

    The  Declaration of Trust of the Portfolio  provides that the Portfolio will
terminate  120 days  after  the  complete  withdrawal  of the Fund or any  other
investor in the Portfolio,  unless either the remaining investors,  by unanimous
vote at a meeting  of such  investors,  or a  majority  of the  Trustees  of the
Portfolio,  by  written  instrument  consented  to by all  investors,  agree  to
continue the  business of the  Portfolio.  This  provision  is  consistent  with
treatment of the Portfolio as a partnership for Federal income tax purposes. See
"Distributions  and  Taxes" for  further  information.  Whenever  the Fund as an
investor in the  Portfolio  is requested  to vote on matters  pertaining  to the
Portfolio (other than the termination of the Portfolio's business,  which may be
determined by the Trustees of the Portfolio without investor approval), the Fund
will hold a meeting  of Fund  shareholders  and will  vote its  interest  in the
Portfolio for or against such matters  proportionately  to the  instructions  to
vote for or against such matters received from Fund shareholders. The Fund shall
vote shares for which it receives no voting  instructions in the same proportion
as the shares for which it receives voting instructions.  Other investors in the
Portfolio may alone or collectively  acquire  sufficient voting interests in the
Portfolio to control matters  relating to the operation of the Portfolio,  which
may require the Fund to withdraw its  investment  in the Portfolio or take other
appropriate action. Any such withdrawal could result in a distribution "in kind"
of portfolio  securities (as opposed to a cash distribution from the Portfolio).
If securities  are  distributed,  the Fund could incur  brokerage,  tax or other
charges in converting the securities to cash. In addition,  the  distribution in
kind may result in a less  diversified  portfolio  of  investments  or adversely
affect the  liquidity of the Fund.  Notwithstanding  the above,  there are other
means for meeting shareholder redemption requests, such as borrowing.

   
    The  Trustees  of the  Trust,  including  a  majority  of the  noninterested
Trustees,  have approved written procedures designed to identify and address any
potential  conflicts of interest  arising from the fact that the Trustees of the
Trust and the Trustees of the Portfolio are the same.  Such  procedures  require
each Board to take actions to resolve any conflict of interest  between the Fund
and the Portfolio,  and it is possible that the creation of separate  Boards may
be considered.  For further information  concerning the Trustees and officers of
the Trust and the Portfolio, see the Statement of Additional Information.



    
MANAGEMENT OF THE FUND AND THE PORTFOLIO
- ------------------------------------------------------------------------------
THE PORTFOLIO  ENGAGES BOSTON  MANAGEMENT AND RESEARCH  ("BMR"),  A WHOLLY-OWNED
SUBSIDIARY OF 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.



    Acting  under  the  general  supervision  of the  Board of  Trustees  of the
Portfolio,  BMR manages  the  Portfolio's  investments  and  affairs.  Under its
investment advisory agreement with the Portfolio BMR receives a monthly advisory
fee of .0625%  (equivalent  to .75% annually) of the average daily net assets of
the  Portfolio  up to $500  million.  On net assets of $500 million and over the
annual fee is reduced as follows:

                                                             ANNUALIZED FEE RATE
  AVERAGE DAILY NET ASSETS FOR THE MONTH                      (FOR EACH LEVEL)
  --------------------------------------                      ---------------

  $500 million but less than $1 billion ....................       0.6875%
  $1 billion but less than $1.5 billion ....................       0.6250%
  $1.5 billion but less than $2 billion ....................       0.5625%
  $2 billion but less than $3 billion ......................       0.5000%
  $3 billion and over ......................................       0.4375%

    As at December 31, 1994, the Portfolio had net assets of  $515,669,513.  For
the fiscal year ended  December 31, 1994,  the Portfolio  paid BMR advisory fees
equivalent to .74% of the Portfolio's average daily net assets for such year.

    BMR furnishes  for the use of the  Portfolio  office space and all necessary
office facilities,  equipment and personnel for servicing the investments of the
Portfolio. BMR also places the portfolio transactions of the Portfolio with many
broker-dealer  firms  and uses its best  efforts  to  obtain  execution  of such
transactions at prices which are advantageous to the Portfolio and at reasonably
competitive  commission rates. Subject to the foregoing,  BMR may consider sales
of shares of the Fund or of other investment companies sponsored by BMR or Eaton
Vance as a factor in the selection of broker-dealer  firms to execute  portfolio
transactions.

    Susan Schiff has acted as the portfolio  manager of the  Portfolio  since it
commenced operations. She has been a Vice President of Eaton Vance and BMR since
1993.

    BMR OR EATON VANCE ACTS AS INVESTMENT  ADVISER TO  INVESTMENT  COMPANIES AND
VARIOUS  INDIVIDUAL AND  INSTITUTIONAL  CLIENTS WITH ASSETS UNDER  MANAGEMENT OF
APPROXIMATELY  $15 BILLION.  Eaton Vance is a  wholly-owned  subsidiary of Eaton
Vance Corp.,  a publicly held 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.

    The Trust has retained  the services of Eaton Vance to act as  Administrator
of the Fund.  The Trust has not retained the services of an  investment  adviser
since  the  Trust  seeks to  achieve  the  investment  objective  of the Fund by
investing  the Fund's assets in the  Portfolio.  As  Administrator,  Eaton Vance
provides the Fund with general  office  facilities  and  supervises  the overall
administration of the Fund. For these services Eaton Vance currently receives no
compensation.  The  Trustees  of the  Trust may  determine,  in the  future,  to
compensate Eaton Vance for such services.

    The Portfolio and the Fund, as the case may be, will each be responsible for
all of its respective  costs and expenses not expressly  stated to be payable by
BMR  under  the  investment  advisory  agreement,   by  Eaton  Vance  under  the
administrative services agreement, or by EVD under the distribution agreement.


SERVICE PLAN
- --------------------------------------------------------------------------------

In addition to advisory  fees and other  expenses,  the Fund pays  service  fees
pursuant to a Service Plan (the  "Plan")  designed to meet the  requirements  of
Rule  12b-1  under  the  Investment  Company  Act of 1940  and the  service  fee
requirements  of the revised  sales charge rule of the National  Association  of
Securities  Dealers,  Inc. THE PLAN  PROVIDES THAT THE FUND MAY MAKE SERVICE FEE
PAYMENTS FOR PERSONAL SERVICES AND/OR THE MAINTENANCE OF SHAREHOLDER ACCOUNTS TO
THE PRINCIPAL  UNDERWRITER,  FINANCIAL SERVICES FIRMS  ("AUTHORIZED  FIRMS") AND
OTHER  PERSONS IN AMOUNTS NOT  EXCEEDING  .25% OF THE FUND'S  AVERAGE  DAILY NET
ASSETS FOR ANY FISCAL YEAR. The Trustees of the Trust have  implemented the Plan
by authorizing the Fund to make quarterly  service fee payments to the Principal
Underwriter  and Authorized  Firms in amounts not expected to exceed .25% of the
Fund's  average  daily net assets for any fiscal year based on the value of Fund
shares  sold by such  persons  and  remaining  outstanding  for at least  twelve
months. During the fiscal year ended December 31, 1994, the Fund paid or accrued
service fees under the Plan  equivalent to .22% of the Fund's  average daily net
assets  for such  year.  The  Plan is  described  further  in the  Statement  of
Additional Information,


VALUING FUND SHARES
- ------------------------------------------------------------------------------

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  (normally  4:00 p.m.  New York  time).  The Fund's net asset value per
share  is  determined  by IBT Fund  Services  (Canada)  Inc.,  a  subsidiary  of
Investors  Bank  &  Trust  Company  ("IBT"),  the  Fund's  and  the  Portfolio's
custodian,  (as agent for the Fund) in the manner  authorized by the Trustees of
the Trust. Net asset value is computed by dividing the value of the Fund's total
assets, less its liabilities,  by the number of shares outstanding.  Because the
Fund  invests its assets in an interest in the  Portfolio,  the Fund's net asset
value will  reflect the value of its interest in the  Portfolio  (which in turn,
reflects the underlying value of the Portfolio's assets and liabilities).

    Authorized  Firms must  communicate  an  investor's  order to the  Principal
Underwriter  prior to the close of the Principal  Underwriter's  business day to
receive that day's net asset value per Fund share and the public  offering price
based thereon.  It is the Authorized  Firms'  responsibility  to transmit orders
promptly to the Principal  Underwriter,  which is a  wholly-owned  subsidiary of
Eaton Vance.

    The  Portfolio's  net  asset  value is also  determined  as of the  close of
regular trading on the Exchange by IBT Fund Services (Canada) Inc. (as agent for
the Portfolio) in the manner  authorized by the Trustees of the  Portfolio.  Net
asset value is computed by subtracting the liabilities of the Portfolio from the
value of its total assets.  Mortgage-backed "pass-through" securities are valued
through use of a matrix  pricing  system which takes into  account  closing bond
valuations, yield differentials, anticipated prepayments and interest rates. For
further  information  regarding the  valuation of the  Portfolio's  assets,  see
"Determination  of Net Asset Value" in the Statement of Additional  Information.
Eaton Vance Corp. owns 77.3% of the outstanding stock of IBT, the Fund's and the
Portfolio's custodian.

- --------------------------------------------------------------------------------
SHAREHOLDERS  MAY DETERMINE THE VALUE OF THEIR  INVESTMENT  BY  MULTIPLYING  THE
NUMBER OF FUND SHARES OWNED BY THE CURRENT NET ASSET VALUE PER SHARE.
- --------------------------------------------------------------------------------


HOW TO BUY FUND SHARES
- ------------------------------------------------------------------------------

SHARES  OF THE FUND  MAY BE  PURCHASED  FOR CASH OR  ACQUIRED  IN  EXCHANGE  FOR
SECURITIES.  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  Authorized
Firm and the Principal  Underwriter.  The Principal Underwriter will furnish the
names of Authorized Firms to an investor upon request.  The Fund may suspend the
offering  of shares at any time and may  refuse  any order for the  purchase  of
shares.

    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 a Statement of Intention, Right of Accumulation,  or
various  Employee  Benefit  Plans are  available  from  Authorized  Firms or the
Principal Underwriter.

    The current sales charges and dealer commissions are:
<TABLE>
<CAPTION>
                                                                   SALES CHARGE AS         SALES CHARGE AS        DEALER COMMISSION
                                                                    PERCENTAGE OF           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*                   0.00*                   0.25**

<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 .25% of average daily net assets paid quarterly for one year.
</TABLE>


    The Principal  Underwriter may at times allow discounts up to the full sales
charge.  During  periods  when the  discount  includes  the full  sales  charge,
Authorized 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  Authorized  Firms which employ
registered representatives who sell a minimum dollar amount of the Fund's shares
and/or shares of other funds distributed by the Principal  Underwriter.  In some
instances,  such additional incentives may be offered only to certain Authorized
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 (the  "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  Automated  Investing
accounts, which may be established with an investment of $50 or more. See "Eaton
Vance Shareholder Services".

    Shares of the Fund may be sold at net asset  value to  current  and  retired
Directors  and  Trustees of Eaton  Vance  funds,  including  the  Portfolio;  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 (1) in  connection  with
the merger of an investment  company with the Fund,  (2) 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, and (3) 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.

    No initial  sales  charge and no  contingent  deferred  sales charge will be
payable or imposed  with respect to shares of the Fund  purchased by  retirement
plans qualified under Section 401, 403(b) or 457 of the Internal Revenue Code of
1986, as amended (the "Code")  ("Eligible  Plans").  In order to purchase shares
without a sales  charge,  the plan  sponsor of an Eligible  Plan must notify the
Transfer  Agent of the  Fund of its  status  as an  Eligible  Plan.  Participant
accounting  services  (including  trust fund  reconciliation  services)  will be
offered  only  through  third  party  recordkeepers  and not by EVD.  The Fund's
Principal  Underwriter may pay commissions to Authorized  Firms who initiate and
are  responsible  for purchases of shares of the Fund by Eligible Plans of up to
1.00% of the amount invested in such shares.

   
ACQUIRING  FUND SHARES IN EXCHANGE FOR  SECURITIES.  IBT, as escrow agent,  will
receive securities acceptable to Eaton Vance, as Administrator,  in exchange for
Fund shares at the applicable  public  offering price as determined  above.  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 Fund share on the day such  proceeds are
received.  Eaton Vance will use  reasonable  efforts to obtain the then  current
market  price for such  securities  but does not  guarantee  the best  available
price.  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 EV Traditional Government Obligations Fund

    IN THE CASE OF PHYSICAL DELIVERY:

        Investors Bank & Trust Company
        Attention: EV Traditional Government Obligations Fund
        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,  must 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
or her tax adviser with respect to the particular  Federal,  state and local tax
consequences of exchanging securities for Fund shares.

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


HOW TO REDEEM FUND SHARES
- ------------------------------------------------------------------------------

A SHAREHOLDER MAY REDEEM FUND SHARES BY DELIVERING TO THE  SHAREHOLDER  SERVICES
GROUP, INC.,  BOS725,  P.O. BOX 1559, BOSTON,  MASSACHUSETTS  02104,  during its
business hours a written  request for  redemption in good order,  plus any share
certificates  with executed stock powers.  The redemption price will be based on
the net asset value per Fund share next computed after such delivery. Good order
means that all  relevant  documents  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  and  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 in good order by The
Shareholder Services Group, Inc., 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.  Although the Fund  normally
expects  to make  payment in cash for  redeemed  shares,  the Trust,  subject to
compliance  with  applicable  regulations,  has  reserved  the  right to pay the
redemption  price of shares of the  Fund,  either  totally  or  partially,  by a
distribution in kind of readily marketable securities withdrawn by the Fund from
the Portfolio.  The securities so  distributed  would be valued  pursuant to the
Portfolio's  valuation  procedures.  If a shareholder received a distribution in
kind, the  shareholder  could incur brokerage or other charges in converting the
securities to cash.

    To sell  shares at their net  asset  value  through  an  Authorized  Firm (a
repurchase),  a  shareholder  can place a repurchase  order with the  Authorized
Firm, who may charge a fee. The value of such shares is based upon the net asset
value calculated  after EVD, as the Fund's agent,  receives the order. It is the
Authorized Firm's  responsibility to transmit promptly repurchase orders to EVD.
Throughout this Prospectus,  the word "redemption" is generally meant to include
a repurchase.

    If  shares  were  recently  purchased,  the  proceeds  of a  redemption  (or
repurchase) will not be sent until the check (including a certified or cashier's
check)  received  for the  shares  purchased  has  cleared.  Payment  for shares
tendered for redemption may be delayed up to 15 days from the purchase date when
the purchase check has not yet cleared. Redemptions or repurchases may result in
a taxable gain or loss.

    Due to the high cost of maintaining  small  accounts,  the Fund reserves the
right to redeem  accounts  with  balances of less than  $1,000.  Prior to such a
redemption,  shareholders  will  be  given  60  days'  written  notice  to  make
additional  purchases.  Thus, an investor making an initial investment of $1,000
would  not be able to  redeem  shares  without  being  subject  to this  policy.
However,  no such  redemption  would be required by the Fund if the cause of the
low account balance was a reduction in the net asset value of Fund shares.


REPORTS TO SHAREHOLDERS
- ------------------------------------------------------------------------------

THE  FUND  WILL  ISSUE  TO  ITS  SHAREHOLDERS  SEMI-ANNUAL  AND  ANNUAL  REPORTS
CONTAINING FINANCIAL STATEMENTS. Financial statements included in annual reports
are audited by the Fund's independent accountants. Shortly after the end of each
calendar year, the Fund will furnish all shareholders with information necessary
for preparing Federal and state tax returns.
    

THE LIFETIME INVESTING ACCOUNT/DISTRIBUTION OPTIONS
- ------------------------------------------------------------------------------

AFTER AN INVESTOR MAKES AN INITIAL PURCHASE OF FUND 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.


   
    At least quarterly,  shareholders  will receive a statement showing complete
details of any transaction and the current balance in the account.  THE LIFETIME
INVESTING  ACCOUNT ALSO PERMITS A SHAREHOLDER TO MAKE ADDITIONAL  INVESTMENTS IN
SHARES BY  SENDING A CHECK FOR $50 OR MORE to The  Shareholder  Services  Group,
Inc.


    Any questions  concerning a shareholder's  account or services available may
be directed by telephone to EATON VANCE  SHAREHOLDER  SERVICES at  800-225-6265,
extension 2, or in writing to The Shareholder Services Group, Inc., BOS725, P.O.
Box 1559, Boston, MA 02104 (please provide the name of the shareholder, the Fund
and the account number).

    THE  FOLLOWING  DISTRIBUTION  OPTIONS  WILL  BE  AVAILABLE  TO ALL  LIFETIME
INVESTING  ACCOUNTS and may be changed as often as desired by written  notice to
the Fund's dividend  disbursing  agent,  The Shareholder  Services Group,  Inc.,
BOS725,  P.O. Box 1559,  Boston,  MA 02104. The currently  effective option will
appear on each account statement.

    Share Option -- Dividends and capital gains will be reinvested in additional
shares.

    Income Option -- Dividends  will be paid in cash,  and capital gains will be
reinvested in additional shares.

    Cash Option -- Dividends and capital gains will be paid in cash.

    The  Share  Option  will  be  assigned  if no  other  option  is  specified.
Distributions,  including those  reinvested,  will be reduced by any withholding
required under Federal income tax laws.

    If the Income  Option or Cash  Option  has been  selected,  dividend  and/or
capital gains distribution checks which are returned by the United States Postal
Service as not  deliverable or which remain uncashed for six months or more will
be  reinvested  in the account in shares at the then  current  net asset  value.
Furthermore,  the  distribution  option  on the  account  will be  automatically
changed  to the  Share  Option  until  such  time as the  shareholder  selects a
different option.

DISTRIBUTION  INVESTMENT  OPTION.  In addition to the  distribution  options set
forth above, dividends and/or capital gains may be invested in additional shares
of another Eaton Vance fund. Before selecting this option, a shareholder  should
obtain a prospectus  of the other Eaton Vance fund and  consider its  objectives
and policies carefully.

"STREET  NAME"  ACCOUNTS.  If  shares  of the Fund are held in a  "street  name"
account with an Authorized Firm, all recordkeeping,  transaction  processing and
payments of  distributions  relating to the beneficial  owner's  account will be
performed by the Authorized  Firm,  and not by the Fund and its Transfer  Agent.
Since the Fund will have no record of the  beneficial  owner's  transactions,  a
beneficial  owner should  contact the  Authorized  Firm to  purchase,  redeem or
exchange shares, to make changes in or give instructions concerning the account,
or to obtain information about the account.  The transfer of shares in a "street
name" account to an account with another dealer or to an account directly with a
Fund involves special procedures and will require the beneficial owner to obtain
historical  purchase  information  about  the  shares  in the  account  from the
Authorized Firm. 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
IN SHARES BY SENDING A CHECK FOR $50 OR MORE.
- --------------------------------------------------------------------------------



THE EATON VANCE EXCHANGE PRIVILEGE
- ------------------------------------------------------------------------------

Shares of the Fund currently may 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). Such
exchange  offers are  available  only in states  where  shares of the fund being
acquired may be legally sold.

    Each exchange  must involve  shares which have a net asset value of at least
$1,000. 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.  The Fund 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 Shareholder  Services Group, Inc. makes exchanges at the next determined
net asset value after  receiving an exchange  request in good order (see "How to
Redeem  Fund  Shares").   Consult  The  Shareholder  Services  Group,  Inc.  for
additional  information  concerning  the exchange  privilege.  Applications  and
prospectuses of other funds are available from Authorized Firms or the Principal
Underwriter.  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.

    Shares of certain  other  funds for which  Eaton  Vance  acts as  investment
adviser or  administrator  may be exchanged  for Fund shares on the basis of the
net asset value per share of each fund at the time of the exchange,  but subject
to any restrictions or qualifications set forth in the current prospectus of any
such fund.

    Telephone  exchanges are accepted by The Shareholder  Services  Group,  Inc.
provided  that  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).  Shares acquired by telephone
exchange must be registered in the same name(s) and with the same address as the
shares being  exchanged.  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 result in a taxable gain or loss.


EATON VANCE SHAREHOLDER SERVICES
- ------------------------------------------------------------------------------

THE FUND OFFERS THE FOLLOWING  SERVICES,  WHICH ARE VOLUNTARY,  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, are available from Authorized Firms or 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 EV
Traditional   Government   Obligations  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
shareholder, the Fund and the account number should accompany each investment.

BANK AUTOMATED INVESTING -- FOR REGULAR SHARE ACCUMULATION:  Cash investments of
$50  or  more  may  be  made  automatically  each  month  or  quarter  from  the
shareholder's  bank account.  The $1,000  minimum  initial  investment and small
account redemption policy are waived for these accounts.

    STATEMENT  OF  INTENTION:  Purchases of $50,000 or more made over a 13-month
period are eligible for reduced sales  charges.  See "Statement of Intention and
Escrow Agreement".

RIGHT OF ACCUMULATION:  Purchases may qualify for reduced sales charges when the
current market value of holdings (shares at current  offering  price),  plus new
purchases, reaches $50,000 or more. Shares of the Eaton Vance funds listed under
"The Eaton Vance  Exchange  Privilege"  may be combined  under the  Statement of
Intention and Right of Accumulation.

    WITHDRAWAL PLAN: A shareholder may draw on shareholdings systematically with
monthly or quarterly checks in an amount specified by the shareholder. A minimum
deposit of $5,000 in shares is required.

REINVESTMENT PRIVILEGE: A SHAREHOLDER WHO HAS REPURCHASED OR REDEEMED SHARES MAY
REINVEST ANY PORTION OR ALL OF THE REPURCHASE OR REDEMPTION  PROCEEDS (PLUS THAT
AMOUNT  NECESSARY TO ACQUIRE A FRACTIONAL SHARE TO ROUND OFF THE 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 subject to 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
shareholder at the next determined net asset value 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).  The privilege is also
available to holders of shares of the other funds offered  subject to an initial
sales charge by the Principal  Underwriter  who wish to reinvest such redemption
or  repurchase  proceeds in shares of the Fund. To the extent that any shares of
the Fund are sold at a loss and the  proceeds  are  reinvested  in shares of the
Fund (or other  shares of the Fund are acquired  within the period  beginning 30
days before and ending 30 days after the date of the redemption)  some or all of
the loss  generally  will not be allowed as a tax  deduction.  Special rules may
apply  to the  computation  of gain or loss  and to the  deduction  of loss on a
repurchase or redemption  followed by a  reinvestment.  See  "Distributions  and
Taxes".  Shareholders  should  consult  their tax  advisers  concerning  the tax
consequences of reinvestments.


TAX-SHELTERED RETIREMENT PLANS: Shares of the Fund are available for purchase in
connection with the following tax-sheltered retirement plans:

    -- Pension  and  Profit   Sharing  Plans  for   self-employed   individuals,
       corporations and non-profit organizations;

    -- Individual  Retirement  Account  Plans for  individuals  and  their  non-
       employed spouses; and

    -- 403(b)   Retirement   Plans  for  employees  of  public  school  systems,
       hospitals,   colleges  and  non-profit   organizations   meeting  certain
       requirements of the Code.
    

    Detailed information concerning these plans, including certain exceptions to
minimum investment requirements,  and copies of the plans are available from the
Principal   Underwriter.   This   information   should  be  read  carefully  and
consultation  with an attorney or tax adviser may be advisable.  The information
sets forth the  service  fee  charged for  retirement  plans and  describes  the
Federal  income  tax  consequences  of  establishing  a plan.  Under all  plans,
dividends  and  distributions  will be  automatically  reinvested  in additional
shares.


   
DISTRIBUTIONS AND TAXES
- ------------------------------------------------------------------------------

SUBSTANTIALLY  ALL  OF THE  INVESTMENT  INCOME  ALLOCATED  TO  THE  FUND  BY THE
PORTFOLIO, LESS THE FUND'S DIRECT AND ALLOCATED EXPENSES, WILL BE DECLARED DAILY
AS A DISTRIBUTION TO FUND  SHAREHOLDERS OF RECORD AT THE TIME OF THE DECLARATION
AND WILL GENERALLY BE TAXABLE TO SHAREHOLDERS AS ORDINARY INCOME,  WHETHER TAKEN
IN CASH OR REINVESTED IN ADDITIONAL SHARES. Such distributions, whether taken in
cash  or  reinvested  in  additional  shares,  will  ordinarily  be  paid on the
fifteenth  day of  each  month  or  the  next  business  day  thereafter.  Daily
distribution  crediting  will commence on the day that  collected  funds for the
purchase of Fund shares are available at the Transfer Agent.  Distributions from
net short-term  capital gains and certain net foreign exchange gains are taxable
to shareholders as ordinary income, and distributions from net long-term capital
gains are taxable to shareholders as long-term  capital gains,  whether received
in cash or  additional  shares of the Fund and  regardless of the length of time
Fund shares have been owned by the shareholders. Gains or losses attributable to
transactions by the Portfolio in options on securities, certain currency forward
contracts,  futures  contracts  and  options  on  futures  may be treated as 40%
short-term and 60% long-term  capital gains or losses or, in the case of certain
of such transactions relating to foreign currencies,  as ordinary income or loss
for Federal income tax purposes.  The Portfolio may have to limit its activities
in these  transactions in order to enable the Fund to maintain its qualification
as a regulated investment company.

    The amount of the Fund's distributions will vary from time to time depending
on general  economic and market  conditions,  the composition of the Portfolio's
investments, its current investment strategies and the operating expenses of the
Fund and the  Portfolio.  While  distributions  will  vary  from time to time in
response to the factors referred to above, the Fund's management will attempt to
pursue a policy of maintaining a relatively stable monthly  distribution payment
to its shareholders.  The  distributions  paid by the Fund during any particular
period  may be more or less than the  amount of net  investment  income  and net
short-term  capital gain  actually  earned by the Portfolio and allocated to the
Fund during such period.  The Portfolio has elected  mixed  straddle  accounting
under the Code for one or more designated classes of activities  involving mixed
straddles.

    The Portfolio is required to accrue  original  issue discount on zero coupon
and certain other  securities and has elected to accrue market  discount on debt
obligations which are purchased at a market discount. While enhancing the Fund's
current  return,  such accrual will also  accelerate  the Fund's  recognition of
interest  income,  distributions  of which will be taxable as  ordinary  income.
Furthermore,  because the Fund seeks to stabilize monthly distribution  payments
and the Portfolio has elected mixed  straddle  accounting  under the Code, it is
possible that a portion of the Fund's  aggregate  distributions  during any year
will be treated as a return of capital for tax  purposes,  rather  than  taxable
distributions   of  dividends  or  capital  gains.  The  Fund  will  inform  the
shareholders  after  the  end of  each  year  what  portion,  if  any,  of  such
distributions constitutes a return of capital for tax purposes.

    Sales  charges  paid upon a purchase  of shares of the Fund  cannot be taken
into  account  for  purposes  of  determining  gain or loss on a  redemption  or
exchange of the shares  before the 91st day after  their  purchase to the extent
shares of the Fund or of another fund are subsequently  acquired pursuant to the
Fund's reinvestment or exchange  privilege.  Any disregarded amounts will result
in an  adjustment  to the  shareholder's  tax  basis in some or all of any other
shares acquired.

    Shareholders will receive annually tax information notices and Forms 1099 to
assist in the  preparation  of their Federal and state tax returns for the prior
calendar year's distributions,  proceeds from the redemption or exchange of Fund
shares, and Federal income tax (if any) withheld by the Fund's Transfer Agent.

    In order to qualify as a regulated  investment  company under the Code,  the
Fund must satisfy  certain  requirements  relating to the sources of its income,
the  distribution  of its income,  and the  diversification  of its  assets.  In
satisfying  these  requirements,  the Fund  will  treat  itself  as  owning  its
proportionate  share of each of the  Portfolio's  assets and as  entitled to the
income of the Portfolio properly attributable to such share.


- --------------------------------------------------------------------------------
AS A REGULATED  INVESTMENT COMPANY UNDER THE CODE, THE FUND DOES NOT PAY FEDERAL
INCOME OR EXCISE TAXES TO THE EXTENT THAT IT DISTRIBUTES TO SHAREHOLDERS ITS NET
INVESTMENT  INCOME AND NET REALIZED  CAPITAL GAINS IN ACCORDANCE WITH THE TIMING
REQUIREMENTS IMPOSED BY THE CODE. AS A PARTNERSHIP UNDER THE CODE, THE PORTFOLIO
DOES NOT PAY FEDERAL INCOME OR EXCISE TAXES.
- --------------------------------------------------------------------------------


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

FROM TIME TO TIME,  THE FUND MAY ADVERTISE ITS YIELD AND/OR AVERAGE ANNUAL TOTAL
RETURN.  The Fund's  current yield is 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  compounded
rate of return (including capital appreciation/ depreciation,  and dividends and
distributions  paid and  reinvested)  for the stated period and  annualizing the
result.  The average annual total return  calculation  assumes 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  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  (including  the  maximum  sales  charge).  The Fund's
effective distribution rate is computed by dividing the distribution rate by the
ratio used to annualize the most recent monthly distribution and reinvesting the
resulting  amount  for a full year on the  basis of such  ratio.  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 debt  obligations  held by
the  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 and short-term  capital gain actually earned
by the Fund during the month.
    

    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.

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


STATEMENT OF INTENTION AND ESCROW AGREEMENT
- ------------------------------------------------------------------------------

TERMS OF ESCROW.  If the  investor,  on an  application,  makes a  Statement  of
Intention to invest a specified amount over a thirteen-month period, then out of
the initial  purchase (or  subsequent  purchases if  necessary) 5% of the dollar
amount specified on the application  shall be held in escrow by the escrow agent
in the form of shares (computed to the nearest full share at the public offering
price applicable to the initial purchase hereunder) registered in the investor's
name. All income  dividends and capital gain  distributions  on escrowed  shares
will be paid to the investor or to the investor's order.

    When the minimum  investment so specified is completed,  the escrowed shares
will be delivered to the investor.  If the investor has an accumulation  account
the shares will remain on deposit under the investor's account.

    If total  purchases  under this  Statement  of  Intention  are less than the
amount specified, the investor will promptly remit to EVD any difference between
the sales charge on the amount  specified and on the amount actually  purchased.
If the  investor  does not  within 20 days after  written  request by EVD or the
Authorized  Firm pay such  difference  in sales  charge,  the escrow  agent will
redeem an  appropriate  number of the  escrowed  shares in order to realize such
difference.  Full shares  remaining after any such redemption  together with any
excess cash proceeds of the shares so redeemed will be delivered to the investor
or to the investor's order by the escrow agent.

    In  signing  the  application,  the  investor  irrevocably  constitutes  and
appoints the escrow agent the  investor's  attorney to surrender for  redemption
any or all escrowed shares with full power of substitution in the premises.

PROVISION FOR RETROACTIVE PRICE  ADJUSTMENT.  If total purchases made under this
Statement  are large  enough  to  qualify  for a lower  sales  charge  than that
applicable to the amount  specified,  all  transactions  will be computed at the
expiration  date of this  Statement  to give  effect  to the lower  charge.  Any
difference  in sales charge will be refunded to the investor in cash, or applied
to the  purchase of  additional  shares at the lower  charge if specified by the
investor.  This refund will be made by the Authorized Firm and by EVD. If at the
time of the  recomputation  a firm other than the  original  firm is placing the
orders,  the adjustment will be made only on those shares purchased  through the
firm then handling the account.
    
<PAGE>
INVESTMENT ADVISER OF 
GOVERNMENT OBLIGATIONS PORTFOLIO
Boston Management and Research
24 Federal Street
Boston, MA 02110

ADMINISTRATOR OF EV TRADITIONAL
GOVERNMENT OBLIGATIONS FUND
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
Coopers & Lybrand L.L.P.
One Post Office Square
Boston, MA  02109

EV TRADITIONAL
GOVERNMENT OBLIGATIONS FUND
24 FEDERAL STREET
BOSTON, MA 02110
T-GOP

EV TRADITIONAL
GOVERNMENT
OBLIGATIONS
FUND

PROSPECTUS
MAY 1, 1995


<PAGE>
                                    PART B
        INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION


                                                          STATEMENT OF
                                                          ADDITIONAL INFORMATION
                                                          May 1, 1995

                    EV CLASSIC GOVERNMENT OBLIGATIONS FUND
                              24 Federal Street
                         Boston, Massachusetts 02110
                                (800) 225-6265

    This  Statement  of  Additional  Information  consists of two parts.  Part I
provides  information about EV Classic Government  Obligations Fund (the "Fund")
and  certain  other  series of Eaton  Vance  Government  Obligations  Trust (the
"Trust"). Part II provides information solely about the Fund. Where appropriate,
Part I  includes  cross-references  to the  relevant  sections  of  Part II that
provide additional, Fund-specific information.

   
TABLE OF CONTENTS                                                         Page
PART I
Investment Objective ..........................................            2
Additional Information about Investment Policies ..............            2
Investment Restrictions .......................................            7
Trustees and Officers .........................................            8
Investment Adviser and Administrator ..........................           10
Custodian .....................................................           13
Service for Withdrawal ........................................           13
Determination of Net Asset Value ..............................           13
Investment Performance ........................................           14
Taxes .........................................................           16
Portfolio Security Transactions ...............................           18
Other Information .............................................           19
Independent Accountants .......................................           20

PART II
Fees and Expenses .............................................          a-1
Principal Underwriter .........................................          a-1
Distribution Plan .............................................          a-2
Performance Information .......................................          a-4
Additional Tax Matters ........................................          a-4
Control Persons and Principal Holders of Securities ...........          a-5
Financial Statements ..........................................          a-6

    THIS  STATEMENT  OF  ADDITIONAL  INFORMATION  IS  NOT A  PROSPECTUS  AND  IS
AUTHORIZED  FOR  DISTRIBUTION  TO  PROSPECTIVE  INVESTORS  ONLY IF  PRECEDED  OR
ACCOMPANIED BY THE FUND'S  PROSPECTUS  DATED MAY 1, 1995, AS  SUPPLEMENTED  FROM
TIME TO  TIME.  THIS  STATEMENT  OF  ADDITIONAL  INFORMATION  SHOULD  BE READ IN
CONJUNCTION WITH SUCH PROSPECTUS, A COPY OF WHICH MAY BE OBTAINED WITHOUT CHARGE
BY CONTACTING EATON VANCE DISTRIBUTORS,  INC. (THE "PRINCIPAL UNDERWRITER") (SEE
BACK COVER FOR ADDRESS AND PHONE NUMBER).
    
<PAGE>
                                    PART B
        INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION

                                                          STATEMENT OF
                                                          ADDITIONAL INFORMATION
                                                          May 1, 1995

   
                   EV MARATHON GOVERNMENT OBLIGATIONS FUND
                              24 Federal Street
                         Boston, Massachusetts 02110
                                (800) 225-6265

    This  Statement  of  Additional  Information  consists of two parts.  Part I
provides information about EV Marathon Government  Obligations Fund (the "Fund")
and  certain  other  series of Eaton  Vance  Government  Obligations  Trust (the
"Trust"). Part II provides information solely about the Fund. Where appropriate,
Part I  includes  cross-references  to the  relevant  sections  of  Part II that
provide additional, Fund-specific information.

TABLE OF CONTENTS                                                         Page
PART I
Investment Objective ...........................................            2
Additional Information about Investment Policies ...............            2
Investment Restrictions ........................................            7
Trustees and Officers ..........................................            8
Investment Adviser and Administrator ...........................           10
Custodian ......................................................           13
Service for Withdrawal .........................................           13
Determination of Net Asset Value ...............................           13
Investment Performance .........................................           14
Taxes ..........................................................           16
Portfolio Security Transactions ................................           18
Other Information ..............................................           19
Independent Accountants ........................................           20

PART II
Fees and Expenses ..............................................          a-1
Principal Underwriter ..........................................          a-1
Distribution Plan ..............................................          a-2
Performance Information ........................................          a-4
Additional Tax Matters .........................................          a-5
Control Persons and Principal Holders of Securities ............          a-5
Financial Statements ...........................................          a-6


    THIS  STATEMENT  OF  ADDITIONAL  INFORMATION  IS  NOT A  PROSPECTUS  AND  IS
AUTHORIZED  FOR  DISTRIBUTION  TO  PROSPECTIVE  INVESTORS  ONLY IF  PRECEDED  OR
ACCOMPANIED BY THE FUND'S  PROSPECTUS  DATED MAY 1, 1995, AS  SUPPLEMENTED  FROM
TIME TO  TIME.  THIS  STATEMENT  OF  ADDITIONAL  INFORMATION  SHOULD  BE READ IN
CONJUNCTION WITH SUCH PROSPECTUS, A COPY OF WHICH MAY BE OBTAINED WITHOUT CHARGE
BY CONTACTING EATON VANCE DISTRIBUTORS,  INC. (THE "PRINCIPAL UNDERWRITER") (SEE
BACK COVER FOR ADDRESS AND PHONE NUMBER).
    
<PAGE>
                                    PART B
        INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION

                                                          STATEMENT OF 
                                                          ADDITIONAL INFORMATION
                                                          May 1, 1995

                  EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND
                              24 Federal Street
                         Boston, Massachusetts 02110
                                (800) 225-6265

   
    This  Statement  of  Additional  Information  consists of two parts.  Part I
provides  information  about EV  Traditional  Government  Obligations  Fund (the
"Fund") and certain  other series of Eaton Vance  Government  Obligations  Trust
(the  "Trust").  Part II  provides  information  solely  about the  Fund.  Where
appropriate,  Part I includes  cross-references to the relevant sections of Part
II that provide additional, Fund-specific information.

                              TABLE OF CONTENTS
                                                                            Page
                                     PART I
Investment Objective ............................................            2
Additional Information about Investment Policies ................            2
Investment Restrictions .........................................            7
Trustees and Officers ...........................................            8
Investment Adviser and Administrator ............................           10
Custodian .......................................................           13
Service for Withdrawal ..........................................           13
Determination of Net Asset Value ................................           13
Investment Performance ..........................................           14
Taxes ...........................................................           16
Portfolio Security Transactions .................................           18
Other Information ...............................................           19
Independent Accountants .........................................           26

                                    PART II
Fees and Expenses ...............................................          a-1
Services For Accumulation .......................................          a-2
Principal Underwriter ...........................................          a-2
Service Plan ....................................................          a-3
Performance Information .........................................          a-4
Additional Tax Matters ..........................................          a-5
Control Persons and Principal Holders of Securities .............          a-5
Financial Statements ............................................          a-6


    THIS  STATEMENT  OF  ADDITIONAL  INFORMATION  IS  NOT A  PROSPECTUS  AND  IS
AUTHORIZED  FOR  DISTRIBUTION  TO  PROSPECTIVE  INVESTORS  ONLY IF  PRECEDED  OR
ACCOMPANIED BY THE FUND'S  PROSPECTUS  DATED MAY 1, 1995, AS  SUPPLEMENTED  FROM
TIME TO  TIME.  THIS  STATEMENT  OF  ADDITIONAL  INFORMATION  SHOULD  BE READ IN
CONJUNCTION WITH SUCH PROSPECTUS, A COPY OF WHICH MAY BE OBTAINED WITHOUT CHARGE
BY CONTACTING EATON VANCE DISTRIBUTORS,  INC. (THE "PRINCIPAL UNDERWRITER") (SEE
BACK COVER FOR ADDRESS AND PHONE NUMBER).
    
<PAGE>
                     STATEMENT OF ADDITIONAL INFORMATION
                                    PART I
   
    This Part I provides  information about the Fund and certain other series of
the Trust.
    
                             INVESTMENT OBJECTIVE
    The  investment  objective of the Fund is to realize a high current  return.
The Fund  currently  seeks to meet its  investment  objective by  investing  its
assets in the Government  Obligations  Portfolio (the  "Portfolio"),  a separate
registered investment company with the same investment objective as the Fund and
substantially  the same  investment  policies and  restrictions as the Fund. The
Portfolio seeks to achieve its investment  objective by investing its securities
issued,  guaranteed  or  otherwise  backed  by the  U.S.  Government,  including
mortgage-backed   securities  of  federal   agencies  and  federally   chartered
corporations, and by engaging in active management strategies, including futures
transactions and related techniques for hedging purposes.

   
    The  Trustees  of the Trust may  withdraw  the  Fund's  investment  from the
Portfolio at any time, if they determine that it is in the best interests of the
Fund to do so. Upon any such withdrawal,  the Fund's assets would be invested in
another  investment  company with  substantially the same investment  objective,
policies  and  restrictions  as  those  of the Fund or  directly  in  investment
securities in accordance with the Portfolio's  investment policies, as described
below. The approval of the Fund's  shareholders  would not be required to change
the  Portfolio's  investment  objective  or any of  the  Portfolio's  investment
policies discussed below, including those concerning security transactions.

               ADDITIONAL INFORMATION ABOUT INVESTMENT POLICIES

    Because the investment  characteristics  of the Fund will correspond directy
to  those  of the  Portfolio,  the  following  is a  discussion  of the  various
investments of and techniques employed by the Portfolio.

MORTGAGE-BACKED SECURITIES
    The  Portfolio's  investments  in  mortgage-backed  securities  may  include
conventional  mortgage  pass-through  securities,  SMBS and  certain  classes of
multiple class CMOs (as described below). Examples of SMBS include interest only
and principal only securities. The CMO classes in which the Portfolio may invest
include sequential and parallel pay CMOs,  including planned  amortization class
and target  amortization class securities.  The Portfolio may also invest in the
floating rate mortgage-backed securities listed under "Indexed Securities."

    GNMA Certificates are mortgage-backed securities representing part ownership
of a pool of mortgage  loans.  These loans -- issued by lenders such as mortgage
bankers,  commercial  banks and  savings  and loan  associations  -- are  either
insured by the Federal  Housing  Administration  or  guaranteed  by the Veterans
Administration.  A "pool" or group or such  mortgages  is assembled  and,  after
being approved by GNMA, is offered to investors through securities dealers. Once
such pool is approved by GNMA,  the timely  payment of interest and principal on
the Certificates  issued  representing such pool is guaranteed by the full faith
and  credit  of  the  U.S.  Government.  As  mortgage-backed   securities,  GNMA
Certificates  differ  from  bonds  in that  the  principal  is paid  back by the
borrower  over the  length of the loan  rather  than  returned  in a lump sum at
maturity.  GNMA Certificates are called "pass-through"  securities because a pro
rata  share  of  both  regular  interest  and  principal  payments,  as  well as
unscheduled early prepayments, on the underlying mortgage pool is passed through
monthly to the holder of the Certificate  (i.e.,  the  Portfolio).  As indicated
below,  since the unscheduled  prepayment  rate of the underlying  mortgage pool
covered by a  "pass-through"  security  cannot be predicted with  accuracy,  the
average life of a particular  issue of GNMA  Certificates  cannot be  accurately
predicted.  The  Portfolio  may purchase  GNMA  Certificates  and various  other
mortgage-backed securities on a when-issued basis subject to certain limitations
and requirements.
    

    The  Federal  Home  Loan  Mortgage   Corporation   ("FHLMC"),   a  corporate
instrumentality  of the U.S.  Government created by Congress for the purposes of
increasing the availability of mortgage credit for residential  housing,  issues
participation  certificates ("PCs") representing  undivided interests in FHLMC's
mortgage  portfolio.  While FHLMC  guarantees the timely payment of interest and
ultimate  collection  of the principal of its PCs, its PCs are not backed by the
full  faith  and  credit of the U.S.  Government.  FHLMC  PCs  differ  from GNMA
Certificates in that the mortgages underlying the PCs are mostly  "conventional"
mortgages  rather than  mortgages  insured or guaranteed by a federal  agency or
instrumentality.  However,  in  several  other  respects,  such  as the  monthly
pass-through of interest and principal (including  unscheduled  prepayments) and
the  unpredictability  of  future  unscheduled  prepayments  on  the  underlying
mortgage pools, FHLMC PCs are similar to GNMA Certificates.

    The Federal National Mortgage  Association  ("FNMA"),  a federally chartered
corporation owned entirely by private stockholders,  purchases both conventional
and federally insured or guaranteed residential mortgages from various entities,
including savings and loan associations, savings banks, commercial banks, credit
unions and mortgage bankers, and packages pools of such mortgages in the form of
pass-through  securities  generally  called FNMA  Mortgage-Backed  Certificates,
which are  guaranteed as to timely payment of principal and interest by FNMA but
are not backed by the full faith and  credit of the U.S.  Government.  Like GNMA
Certificates  and FHLMC PCs,  these  pass-through  securities are subject to the
unpredictability of unscheduled prepayments on the underlying mortgage pools.

   
    While it is not  possible to  accurately  predict  the life of a  particular
issue of a mortgage-backed  "pass-through"  security held by the Portfolio,  the
actual  life of any such  security is likely to be  substantially  less than the
average  maturity of the mortgage pool underlying the security.  This is because
unscheduled  early  prepayments  of  principal  on  the  security  owned  by the
Portfolio  will result from the  prepayment,  refinancing  or foreclosure of the
underlying mortgage loans in the mortgage pool. The Portfolio,  when the monthly
payments  (which may include  unscheduled  prepayments)  on such a security  are
passed  through  to it,  may be able to  reinvest  them only at a lower  rate of
interest.  Because of the regular scheduled  payments of principal and the early
unscheduled  prepayments  of  principal,   the  mortgage-backed   "pass-through"
security  is less  effective  than  other  types  of  obligations  as a means of
"locking-in"  attractive  long-term  interest rates.  As a result,  this type of
security may have less  potential  for capital  appreciation  during  periods of
declining  interest  rates than other U.S.  Government  securities of comparable
maturities,  although many issues of mortgage-backed  "pass-through"  securities
may have a comparable  risk of decline in market value during  periods of rising
interest  rates.  If such a security has been  purchased  by the  Portfolio at a
premium  above its par  value,  both a  scheduled  payment of  principal  and an
unscheduled prepayment of principal, which would be made at par, will accelerate
the realization of a loss equal to that portion of the premium applicable to the
payment  or  prepayment  and will  reduce  the Fund's  total  return.  If such a
security has been  purchased by the  Portfolio at a discount from its par value,
both a scheduled payment of principal and an unscheduled prepayment of principal
will increase  current and total returns and will  accelerate the recognition of
income,  which,  when  distributed  to Fund  shareholders,  will be  taxable  as
ordinary income.  The Portfolio  intends to acquire the majority of its holdings
of mortgage-backed "pass-through" securities at a discount from par value.

COLLATERALIZED MORTGAGE OBLIGATIONS ("CMOS")
    CMOs are debt securities  issued by the FHLMC and by financial  institutions
and other mortgage lenders which are generally fully collateralized by a pool of
mortgages  held under an indenture.  The key feature of the CMO structure is the
prioritization  of the cash flows  from a pool of  mortgages  among the  several
classes of CMO holders,  thereby  creating a series of obligations  with varying
rates and maturities appealing to a wide range of investors.  CMOs generally are
secured by an assignment to a trustee under the indenture  pursuant to which the
bonds are issued of collateral consisting of a pool of mortgages.  Payments with
respect to the underlying  mortgages generally are made to the trustee under the
indenture.  Payments of principal and interest on the  underlying  mortgages are
not passed through to the holders of the CMOs as such (that is, the character of
payments of principal and interest is not passed through and therefore  payments
to holders of CMOs  attributable  to interest paid and  principal  repaid on the
underlying mortgages do not necessarily constitute income and return of capital,
respectively,  to such  holders),  but such payments are dedicated to payment of
interest on and  repayment of  principal of the CMOs.  CMOs are issued in two or
more  classes or series with  varying  maturities  and stated  rates of interest
determined  by the issuer.  Because the interest and  principal  payments on the
underlying  mortgages are not passed through to holders of CMOs, CMOs of varying
maturities  may be secured by the same pool of mortgages,  the payments on which
are used to pay interest to each class and to retire  successive  maturities  in
sequence.  CMOs are  designed  to be retired  as the  underlying  mortgages  are
repaid.  In the event of sufficient  early  prepayments on such  mortgages,  the
class or  series  of CMO  first to mature  generally  will be  retired  prior to
maturity.  Therefore,  although in most cases the issuer of CMOs will not supply
additional collateral in the event of such prepayments, there will be sufficient
collateral to secure CMOs that remain outstanding.  Currently, Boston Management
& Research (the  "Investment  Adviser") will consider  privately  issued CMOs or
other mortgage-backed  securities as possible investments for the Portfolio only
when the mortgage  collateral is insured,  guaranteed or otherwise backed by the
U.S.  Government  or one or more of its  agencies  or  instrumentalities  (e.g.,
insured by the Federal Housing  Administration or Farmers Home Administration or
guaranteed by the Administrator of Veterans Affairs or consisting in whole or in
part of U.S. Government securities).

STRIPPED MORTGAGE-BACKED SECURITIES ("SMBS")
    The Portfolio may invest in SMBS, which are derivative  multiclass  mortgage
securities.  The  Portfolio  may only invest in SMBS issued or guaranteed by the
U.S. Government, its agencies or instrumentalities.  SMBS are usually structured
with  two  classes  that  receive  different  proportions  of the  interest  and
principal  distributions  from a pool of  mortgages.  A common type of SMBS will
have one class receiving all of the interest from the mortgages, while the other
class will receive all of the principal.  However, in some instances,  one class
will  receive some of the  interest  and most of the  principal  while the other
class will receive most of the interest and the remainder of the  principal.  If
the underlying  mortgages  experience  greater than  anticipated  prepayments of
principal,  the  Portfolio  may fail to fully recoup its initial  investment  in
these  securities.  Although  the market  for such  securities  is  increasingly
liquid,  certain  SMBS may not be  readily  marketable  and  will be  considered
illiquid for purposes of the  Portfolio's  limitation on investments in illiquid
securities.  The  determination  of whether a particular  SMBS is liquid will be
made by the Investment Adviser under guidelines and standards established by the
Trustees of the Portfolio.  The market value of the class consisting entirely of
principal  payments  generally is  unusually  volatile in response to changes in
interest  rates.  The yields on a class of SMBS that receives all or most of the
interest from mortgages are generally  higher than  prevailing  market yields on
other  mortgage-backed  securities  because  their cash flow  patterns  are more
volatile  and there is a greater  risk that the initial  investment  will not be
fully  recouped.  The  Investment  Adviser  will seek to manage these risks (and
potential  benefits) by investing in a variety of such  securities  and by using
certain hedging techniques.

INDEXED SECURITIES
    The indexed securities  purchased by the Portfolio may include interest only
("IO") and principal only ("PO") securities,  floating rate securities linked to
the Cost of Funds Index ("COFI  floaters"),  other  "lagging rate" floating rate
securities, floating rate securities that are subject to a maximum interest rate
("capped  floaters"),  leveraged  floating rate securities  ("super  floaters"),
leveraged  inverse  floating rate securities  ("inverse  floaters"),  dual index
floaters,  range floaters,  index  amortizing notes and various currency indexed
notes.

RISKS OF CERTAIN MORTGAGE-BACKED AND INDEXED SECURITIES
    The risk of early  prepayments is the primary risk  associated with mortgage
IOs,  super  floaters  and  other   leveraged   floating  rate   mortgage-backed
securities.  The primary risks  associated  with COFI  floaters,  other "lagging
rate" floaters, capped floaters, inverse floaters, POs and leveraged inverse IOs
are the potential  extension of average life and/or  depreciation  due to rising
interest rates. Although not mortgage-backed securities,  index amortizing notes
and other  callable  securities are subject to extension risk resulting from the
issuer's failure to exercise its option to call or redeem the notes before their
stated  maturity  date.  The  residual  classes  of  CMOs  are  subject  to both
prepayment and extension risk.

    Other types of floating rate derivative debt securities present more complex
types of interest  rate risks.  For example,  range  floaters are subject to the
risk that the  coupon  will be  reduced to below  market  rates if a  designated
interest rate floats outside of a specified  interest rate band or collar.  Dual
index or yield curve  floaters  are subject to  depreciation  in the event of an
unfavorable  change in the spread between two  designated  interest  rates.  The
market values of currency-linked securities may be very volatile and may decline
during periods of unstable currency exchange rates.

LEVERAGE THROUGH BORROWING
    The Portfolio and the other investment  companies  managed by the Investment
Adviser or Eaton Vance Management participate in a Line of Credit Agreement (the
"Credit Agreement") with Citibank,  N.A.  ("Citibank").  Citibank agrees, in the
Credit  Agreement,  to  consider  requests  from the  Portfolio  and such  other
investment  companies that Citibank make advances  ("Advances") to the Portfolio
and such other  investment  companies from time to time. The aggregate amount of
all such Advances to all such borrowers will not exceed  $120,000,000,  of which
$100,000,000 is a discretionary  facility and $20,000,000 a committed  facility.
The Portfolio  has currently  determined  that its  borrowings  under the Credit
Agreement will not exceed, at any one time outstanding, the lesser of (a) 1/3 of
the current  market value of the net assets of the  Portfolio or (b)  $7,500,000
(the "Amount Available to the Portfolio").  The Portfolio is obligated to pay to
Citibank, in addition to interest on the Advances made to it, a quarterly fee on
the average daily unused portion of the Amount Available to the Portfolio at the
rate of 1/4 of 1% per annum.  The Credit Agreement may be terminated by Citibank
or the borrowers at any time upon 30 days' prior written  notice.  The Portfolio
expects to use the proceeds of the Advances  primarily for leveraging  purposes.
As at December 31, 1994, the Portfolio had no outstanding  loans pursuant to the
Credit  Agreement.  The  average  daily loan  balance  for the fiscal year ended
December 31, 1994, was $981,635 and the average daily interest rate was 5.87%.

    The Portfolio,  like many other investment companies,  may also borrow money
for temporary  extraordinary  or emergency  purposes.  Such  borrowings  may not
exceed 5% of the value of the Portfolio's total assets at the time of borrowing.
The  Portfolio  may pledge up to 10% of the lesser of cost or value of its total
assets to secure such borrowings.

WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS
    The Portfolio may purchase and sell securities on a "forward  commitment" or
"when-issued" basis.  Forward commitment or when-issued  transactions arise when
securities  are  purchased  or sold by the  Portfolio  with payment and delivery
taking  place in the  future  in order to  secure  what is  considered  to be an
advantageous  price and yield to the  Portfolio at the time of entering into the
transaction. However, the yield on a comparable security when the transaction is
consummated may vary from the yield on the security at the time that the forward
commitment or when-issued  transaction  was made. From the time of entering into
the  transaction  until  delivery  and  payment  is made at a  later  date,  the
securities  that are the  subject  of the  transaction  are  subject  to  market
fluctuations.  When the Portfolio engages in forward  commitment or when- issued
transactions,  the Portfolio  relies on the seller or buyer, as the case may be,
to consummate the sale. Failure to do so may result in the Portfolio missing the
opportunity of obtaining a price or yield considered to be advantageous. Forward
commitment or when-issued  transactions may be expected to occur a month or more
before delivery is due. However, no payment or delivery is made by the Portfolio
until it receives  payment or delivery from the other party to the  transaction.
The  Portfolio  will maintain in a segregated  account with its custodian  cash,
U.S. Government  securities or other liquid high-grade debt securities having an
aggregate value equal to the amount of such purchase  commitments  until payment
is  made.  To  the  extent  the  Portfolio  engages  in  forward  commitment  or
when-issued  transactions,  it  will  do so for  the  purpose  of  acquiring  or
disposing of securities  held by the Portfolio  consistent  with the Portfolio's
investment  objective  and  policies  and  not  for the  purpose  of  investment
leverage.

LENDING PORTFOLIO SECURITIES
    The  Portfolio  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  ("SEC"),  such
loans are  required  to be secured  continuously  by  collateral  in cash,  cash
equivalents or U.S. Government  securities held by the Portfolio'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  certificates of deposit,  commercial  paper and other  short-term money
market instruments. The Portfolio would have the right to call a loan and obtain
the  securities  loaned at any time on up to five  business  days'  notice.  The
Portfolio  would not have the right to vote any securities  having voting rights
during the existence of a 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.

WRITING AND PURCHASING CALL AND PUT OPTIONS
     The  Portfolio  may write  covered put and call options on U.S.  Government
securities.  The  Portfolio  does not  intend to write a covered  option on U.S.
Government securities if after such transaction more than 25% of its net assets,
as measured by the aggregate  value of such  securities  underlying  all covered
calls and puts written by the Portfolio,  would be subject to such options.  The
Portfolio  will  only  write a put  option on a  security  which it  intends  to
ultimately acquire for its investment  portfolio.  The Portfolio does not intend
to purchase an option on any U.S.  Government security if after such transaction
more than 5% of its net assets,  as measured by the  aggregate  of all  premiums
paid for all options held by the Portfolio, would be so invested.

    Securities  dealers  make  over-the-counter  ("OTC")  markets  in options on
certain "pass-through"  mortgage-backed  securities,  such as GNMA Certificates,
FHLMC PCs and FNMA Mortgage-Backed Certificates. These dealers buy and sell call
and put  options on such  securities,  and the  Portfolio  may enter into option
transactions  with such  dealers.  Since the  remaining  principal  balance of a
"pass-through"  mortgage-backed  security  declines  each  month as a result  of
regular scheduled payments and early unscheduled  prepayments of principal,  the
Portfolio,  as a writer of a call option  holding  such a security as "cover" to
satisfy its  delivery  obligation  in the event of  exercise,  may find that the
security it holds no longer has a  sufficient  remaining  principal  balance for
this  purpose.  Should  this  occur,  the  Portfolio  will  purchase  additional
securities in order to maintain its "cover."

FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
    Futures Contracts.  The Portfolio may enter into futures contracts traded on
an exchange regulated by the Commodity Futures Trading  Commission  ("CFTC") and
on foreign  exchanges,  but,  with  respect to foreign  exchange-traded  futures
contracts,  only if the Investment  Adviser determines that trading on each such
foreign  exchange does not subject the Portfolio to risks,  including credit and
liquidity  risks,  that are materially  greater than the risks  associated  with
trading on CFTC-regulated exchanges.

    Hedging Strategies.  In order to hedge its current or anticipated  portfolio
positions,  the  Portfolio may use futures  contracts on securities  held in its
Portfolio  or on  securities  with  characteristics  similar  to  those  of  the
securities held by the Portfolio.  If, in the opinion of the Investment Adviser,
there is a  sufficient  degree  of  correlation  between  price  trends  for the
securities held by the Portfolio and futures  contracts based on other financial
instruments,  securities indices or other indices,  the Portfolio may also enter
into such futures contracts as part of its hedging strategy. Although under some
circumstances  prices of  securities  held by the  Portfolio may be more or less
volatile  than prices of such futures  contracts,  the  Investment  Adviser will
attempt  to  estimate  the  extent of this  difference  in  volatility  based on
historical  patterns and to compensate for it by having the Portfolio enter into
a greater or lesser number of futures contracts or by attempting to achieve only
a partial  hedge against price  changes  affecting  the  securities  held by the
Portfolio.

    Options on Futures Contracts.  The Portfolio may purchase and write call and
put options on futures contracts which are traded on a United States exchange or
board of trade or any foreign  exchange on which the  Portfolio  is permitted to
trade futures  contracts.  The  Portfolio  will not purchase or write options on
futures contracts unless, in the opinion of the Investment  Adviser,  the market
for such options has developed  sufficiently that the risks associated with such
options  transactions  are not greater  than the risks  associated  with futures
transactions.

    Some derivative securities are not readily marketable or may become illiquid
under  adverse  market  conditions.   In  addition,  during  periods  of  market
volatility,  a commodity  exchange  may  suspend or limit in an  exchange-traded
derivative  instrument,  which may make the instrument  temporarily illiquid and
difficult to price.  Commodity  exchanges may also establish daily limits on the
amount that the price of a futures  contract or futures option can vary from the
previous day's settlement price. Once the daily limit is reached,  no trades may
be made that day at a price  beyond the limit.  This may prevent  the  Portfolio
from closing out positions and limiting its losses.

LIMITATIONS ON THE USE OF FUTURES  CONTRACTS  AND CERTAIN  OPTIONS The Portfolio
    will engage in futures and related options transactions for
bona fide  hedging or  non-hedging  purposes as defined in or  permitted by CFTC
regulations.   In  general,   the  Portfolio   will  determine  that  the  price
fluctuations  in the futures  contracts  and options on futures used for hedging
purposes are substantially  related to price  fluctuations in securities held by
the  Portfolio or that it expects to purchase.  To evidence its hedging  intent,
the Portfolio  expects that, on 75% or more of the occasions on which it takes a
long futures (or option on futures) position, the Portfolio will have purchased,
or  will  be in  the  process  of  purchasing,  equivalent  amounts  of  related
securities  at the time when the  futures  (or  option)  position is closed out.
However,  in particular  cases,  when it is  economically  advantageous  for the
Portfolio to do so, a long futures (or options)  position may be terminated  (or
an option may expire)  without the  corresponding  purchase of  securities.  The
Portfolio will engage in transactions  in futures  contracts and related options
only to the extent such transactions are consistent with the requirements of the
Internal  Revenue  Code  for  maintaining  the  qualification  of the  Fund as a
regulated investment company for Federal income tax purposes (see "Taxes").

FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS
    Forward  contracts  are  individually  negotiated  and  privately  traded by
currency traders and their customers.  A forward contract involves an obligation
to purchase or sell a specific  currency (or basket of currencies) for an agreed
price at a future  date,  which may be any fixed number of days from the date of
the  contract.  The  Portfolio  may  engage in  cross-hedging  by using  forward
contracts  in  one  currency  (or  basket  of   currencies)   to  hedge  against
fluctuations in the value of securities  denominated in a different  currency if
the  Investment  Adviser  determines  that  there is an  established  historical
pattern of  correlation  between the two currencies (or the basket of currencies
and the underlying currency).  Use of a different foreign currency magnifies the
Portfolio's exposure to foreign currency exchange rate fluctuations.

    The precise  projection  of  short-term  currency  market  movements  is not
possible and short-term  hedging  provides a means of fixing the dollar value of
only a portion of the Portfolio's  foreign assets.  The Portfolio will not enter
into forward  contracts or maintain a net exposure to such  contracts  where the
consummation  of the contracts would obligate the Portfolio to deliver an amount
of  foreign  currency  in  excess  of the  value of the  securities  held by the
Portfolio or other assets denominated in that currency.

ASSET COVERAGE FOR DERIVATIVE INSTRUMENTS
    Transactions using forward  contracts,  futures contracts and options (other
than  options  that the  Portfolio  has  purchased)  expose the  Portfolio to an
obligation  to  another  party.  The  Portfolio  will  not  enter  into any such
transactions  unless it owns either (1) an  offsetting  ("covered")  position in
securities,   currencies,   or  other  options,  futures  contracts  or  forward
contracts,  or (2) cash, receivables and short-term debt securities with a value
sufficient  at all times to cover  its  potential  obligations  not  covered  as
provided in (1) above.  The Portfolio will comply with SEC guidelines  regarding
cover for these  instruments and, if the guidelines so require,  set aside cash,
U.S.  Government  securities or other liquid,  high-grade  debt  securities in a
segregated account with its custodian in the prescribed amount.

    Assets used as cover or held in a  segregated  account  cannot be sold while
the position in the corresponding  forward contract,  futures contract or option
is open,  unless they are replaced with other  appropriate  assets. As a result,
the  commitment  of a large  portion  of the  Portfolio's  assets  to  cover  or
segregated accounts could impede portfolio management or the Portfolio's ability
to meet redemption requests or other current obligations.

PORTFOLIO TURNOVER
    If the Portfolio writes a substantial  number of call options and the market
prices of the underlying  securities  appreciate,  or if the Portfolio  writes a
substantial  number of put  options  and the  market  prices  of the  underlying
securities  depreciate,  there may be a very substantial  turnover of securities
held by the Portfolio.  Although it is not anticipated that the annual portfolio
turnover rate will exceed 200% under such  circumstance,  portfolio turnover may
be greater than 200% but is not expected to exceed  300%. A 200%  turnover  rate
would occur if all of the securities  held by the Portfolio were sold and either
repurchased or replaced twice within one year. High portfolio  turnover involves
correspondingly greater brokerage commissions and other transaction costs, which
will be borne directly by the Portfolio.  It may also result in the  realization
of capital gains.  The Portfolio pays brokerage  commissions in connection  with
futures  transactions  and the  writing  of  options  and  effecting  of closing
purchase or sale  transactions,  as well as for purchases and sales of portfolio
securities.  See  "Portfolio  Security  Transactions"  for a  discussion  of the
Portfolio's brokerage practices.
    

                           INVESTMENT RESTRICTIONS
    The following investment restrictions are designated as fundamental policies
and as such cannot be changed  without the approval of the holders of a majority
of the Fund's outstanding voting securities,  which as used in this Statement of
Additional  Information  means the  lesser of (a) 67% of the  shares of the Fund
present or  represented by proxy at a meeting if the holders of more than 50% of
the shares are present or represented at the meeting or (b) more than 50% of the
shares of the Fund. Accordingly, the Fund may not:

    (1) With  respect  to 75% of its total  assets,  invest  more than 5% of its
total assets in the  securities  of a single issuer or purchase more than 10% of
the outstanding voting securities of a single issuer,  except obligations issued
or  guaranteed by the U.S.  Government,  its agencies or  instrumentalities  and
except securities of other investment companies;  or invest more than 25% of its
total assets in any single industry (other than securities  issued or guaranteed
by the U.S. Government or its agencies or instrumentalities);

    (2) Borrow money or issue senior securities except as permitted by the
Investment Company Act of 1940;

    (3) Purchase  securities on margin (but the Fund may obtain such  short-term
credits  as may be  necessary  for the  clearance  of  purchases  and  sales  of
securities). The deposit or payment by the Fund of initial or maintenance margin
in connection  with futures  contracts or related  options  transactions  is not
considered the purchase of a security on margin;

    (4)  Underwrite  or  participate  in the  marketing of securities of others,
except insofar as it may technically be deemed to be an underwriter in selling a
portfolio security under circumstances which may require the registration of the
same under the Securities Act of 1933;

    (5)  Purchase  or sell  real  estate,  although  it may  purchase  and  sell
securities  which are secured by real estate and  securities of companies  which
invest or deal in real estate;

    (6) Purchase or sell physical commodities or contracts for the purchase or
sale of physical commodities;

    (7)  Make  loans  to any  person  except  by (a)  the  acquisition  of  debt
instruments  and making  portfolio  investments,  (b) entering  into  repurchase
agreements and (c) lending portfolio securities; or

    (8) Buy  investment  securities  from or sell them to any of its officers or
Trustees of the Trust, the investment adviser or its underwriter,  as principal;
however,  any such person or concerns may be employed as a broker upon customary
terms.

   
    Notwithstanding  the investment  policies and  restrictions of the Fund, the
Fund may invest its assets in an open-end  management  investment  company  with
substantially  the same investment  objective,  policies and restrictions as the
Fund.

    The  Portfolio has adopted  substantially  the same  fundamental  investment
restrictions as the foregoing numbered  investment  restrictions  adopted by the
Fund; such restrictions cannot be changed without the approval of a "majority of
the  outstanding  voting  securities"  of the  Portfolio,  which as used in this
Statement  of  Additional  Information  means  the  lesser  of  (a)  67%  of the
outstanding  voting  securities of the Portfolio present or represented by proxy
at a  meeting  if the  holders  of  more  than  50% of  the  outstanding  voting
securities  of the Portfolio  are present or  represented  at the meeting or (b)
more than 50% of the outstanding  voting  securities of the Portfolio.  The term
"voting  securities"  as used in this  paragraph  has the same meaning as in the
Investment Company Act of 1940 (the "1940 Act"). Whenever the Trust is requested
to vote on a change in the investment  restrictions of the Portfolio,  the Trust
will hold a meeting of Fund shareholders and will cast its vote as instructed by
the shareholders.

    The Fund and the Portfolio  have each adopted the  following  nonfundamental
investment  policies  which  may be  changed  with  respect  to the  Fund by the
Trustees  of the Trust  without  approval by the Fund's  shareholders  or may be
changed with respect to the Portfolio by the Trustees of the  Portfolio  with or
without the approval of the Fund or the Portfolio's other investors. As a matter
of nonfundamental  policy,  neither the Fund nor the Portfolio may: (a) purchase
put or call options on U.S.  Government  securities  if after such purchase more
than 5% or its net assets, as measured by the aggregate of the premiums paid for
such  options  held by the  Fund or the  Portfolio,  would be so  invested;  (b)
purchase any put options,  long futures contracts,  or call options on a futures
contract  if at the  date  of  such  purchase  realized  net  losses  from  such
transactions  during the fiscal year to date exceed 5% of its average net assets
during  such  period;  (c) make short  sales of  securities  or maintain a short
position,  unless at all times  when a short  position  is open it owns an equal
amount  of such  securities  or  securities  convertible  into or  exchangeable,
without payment of any further  consideration,  for securities of the same issue
as, and equal in amount to, the securities sold short,  and unless not more than
25% of its net assets (taken at current  value) is held as  collateral  for such
sales at any one time. (The Fund and the Portfolio will make such sales only for
the purpose of  deferring  realization  of gain or loss for  Federal  income tax
purposes and such sales would not be made of securities  subject to  outstanding
options); (d) purchase securities of any issuer which,  including  predecessors,
has not been in continuous operation for at least three years, except that 5% of
its total assets (taken at market value) may be invested in certain  issuers not
in such  continuous  operation  but  substantially  all of whose  assets are (i)
securities  of one or more  issuers  which  have  had a record  of three  years'
continuous  operation  or (ii)  assets of an  independent  division of an issuer
which division has had a record of three years' continuous operation;  provided,
however,  that exempted from this  restriction are U.S.  Government  securities,
securities  of  issuers  which are rated by at least one  nationally  recognized
statistical rating organization, municipal obligations and obligations issued or
guaranteed by any foreign government or its agencies or  instrumentalities;  (e)
invest  more  than  15% of net  assets  in  investments  which  are not  readily
marketable,  including restricted  securities and repurchase agreements maturing
in  more  than  seven  days.  Restricted  securities  for the  purposes  of this
limitation do not include  securities  elegible for resale pursuant to Rule 144A
of the  Securities  Act of 1933 that the Board of  Trustees  of the Trust or the
Portfolio,  or its  delegate,  determine  to be liquid,  based upon the  trading
markets for the specific  security;  (f) purchase or retain in its portfolio any
securities  issued by an issuer any of whose  officers,  directors,  trustees or
security  holders is an officer or Trustee of the Trust or the Portfolio or is a
member,  officer,  director or trustee of any investment adviser of the Trust or
the  Portfolio,  if after the purchase of the  securities  of such issuer by the
Fund or the  Portfolio one or more of such persons owns  beneficially  more than
1/2 of 1% of the shares or  securities  or both (all  taken at market  value) of
such  issuer  and such  persons  owning  more  than 1/2 of 1% of such  shares or
securities  together own beneficially  more than 5% of such shares or securities
or both (all taken at market  value);  or (g) purchase oil, gas or other mineral
leases  or  purchase  partnership   interests  in  oil,  gas  or  other  mineral
exploration or development programs.
    

    In order to permit  the sale of shares of the Fund in  certain  states,  the
Fund  may make  commitments  more  restrictive  than  the  fundamental  policies
described above. Should the Fund determine that any such commitment is no longer
in the best  interests  of the Fund and its  shareholders,  it will  revoke  the
commitment by terminating sales of its shares in the state(s) involved.

                            TRUSTEES AND OFFICERS
   
    The Trustees and officers of the Trust and the  Portfolio  are listed below.
Except as indicated,  each individual has held the office shown or other offices
in the same  company  for the last  five  years.  Unless  otherwise  noted,  the
business  address of each  Trustee  and  officer is 24 Federal  Street,  Boston,
Massachusetts  02110,  which is also the address of the  Portfolio's  investment
adviser,  Boston Management and Research ("BMR" or the "Investment  Adviser"), a
wholly-owned  subsidiary of Eaton Vance  Management  ("Eaton  Vance");  of Eaton
Vance's  parent,  Eaton  Vance  Corp.  ("EVC");  and of BMR's and Eaton  Vance's
trustee,  Eaton Vance,  Inc.  ("EV").  Eaton Vance and EV are both  wholly-owned
subsidiaries of EVC. Those Trustees who are  "interested  persons" of the Trust,
the  Portfolio,  BMR,  Eaton  Vance,  EVC or EV, as defined in the 1940 Act,  by
virtue of their  affiliation  with any one or more of the Trust,  the Portfolio,
BMR, Eaton Vance, EVC or EV, are indicated by an asterisk(*).
    

                   TRUSTEES OF THE TRUST AND THE PORTFOLIO

M. DOZIER GARDNER (61), President and Trustee*
President and Chief  Executive  Officer of BMR,  Eaton Vance,  EVC and EV, and a
  Director of EVC and EV.  Director,  Trustee and officer of various  investment
  companies managed by Eaton Vance or BMR.

DONALD R. DWIGHT (64), Trustee
President of Dwight Partners, Inc. (a corporate relations and communications
  company) founded in 1988. Director or Trustee of various investment
  companies managed by Eaton Vance or BMR.
Address: Clover Mill Lane, Lyme, New Hampshire 03768

JAMES B. HAWKES (53), Vice President and Trustee*
Executive Vice President, BMR, Eaton Vance, EVC and EV and a Director of EVC and
  EV. Director,  Trustee and officer of various investment  companies managed by
  Eaton Vance or BMR. Mr.  Hawkes was elected Vice  President and Trustee of the
  Trust on December 16, 1991.

   
SAMUEL L. HAYES, III (60), Trustee
Jacob H. Schiff,  Professor of Investment Banking at Harvard University Graduate
  School of Business  Administration.  Director or Trustee of various investment
  companies managed by Eaton Vance or BMR.
Address: Harvard  University Graduate School of Business Administration,
  Soldiers Field Road, Boston, Massachusetts 02163
    

NORTON H. REAMER (59), Trustee
President and Director,  United Asset Management Corporation,  a holding company
  owning  institutional  investment  management firms.  Chairman,  President and
  Director,  The Regis Fund, Inc. (mutual fund).  Director or Trustee of various
  investment companies managed by Eaton Vance or BMR.
Address: One International Place, Boston, Massachusetts 02110

   
JOHN L. THORNDIKE (68), Trustee
Director, Fiduciary Company Incorporated. Director or Trustee of various
  investment companies managed by Eaton Vance or BMR.
Address: 175 Federal Street, Boston, Massachusetts 02110
    

JACK L. TREYNOR (65), Trustee
Investment Adviser and Consultant. Director or Trustee of various investment
  companies managed by Eaton Vance or BMR.
Address: 504 Via Almar, Palos Verdes Estates, California 90274

                   OFFICERS OF THE TRUST AND THE PORTFOLIO

SUSAN SCHIFF (34), Vice President
Vice President of BMR, Eaton Vance and EV. Officer of various investment
  companies managed by Eaton Vance or BMR. Ms. Schiff was elected Vice
  President of the Trust on February 24, 1992.

MICHAEL B. TERRY (52), Vice President of the Trust
Vice President of BMR, Eaton Vance and EV. Officer of various investment
  companies managed by Eaton Vance or BMR. Mr. Terry was elected Vice
  President of the Trust on December 17, 1990.

MARK S. VENEZIA (45), Vice President
Vice  President  of BMR,  Eaton  Vance and EV.  Officer  of  various  investment
  companies managed by Eaton Vance or BMR.

JAMES L. O'CONNOR (50), Treasurer
Vice  President  of BMR,  Eaton  Vance and EV.  Officer  of  various  investment
  companies managed by Eaton Vance or BMR.

   
THOMAS OTIS (63, Secretary
Vice President and Secretary of BMR, Eaton Vance, EVC and EV. Officer of various
  investment companies managed by Eaton Vance or BMR.
    

JANET E. SANDERS (59), Assistant Treasurer and Assistant Secretary
Vice President of BMR, Eaton Vance and EV. Officer of various investment
  companies managed by Eaton Vance or BMR.

   
JAMES F. ALBAN (33), Assistant Treasurer
Assistant Vice President of BMR since August 11, 1992, and of Eaton Vance and EV
  since  January 17, 1992,  and an employee of Eaton Vance since  September  23,
  1991.  Tax  Consultant  and Audit Senior with  Deloitte & Touche (1987- 1991).
  Officer of various  investment  companies  managed by Eaton Vance or BMR.  Mr.
  Alban was elected Assistant Treasurer of the Trust on December 16, 1991.

A. JOHN MURPHY (32), Assistant Secretary of the Trust
Assistant Vice President of BMR, Eaton Vance and EV since March 1, 1994;
  employee of Eaton Vance since March 1993. State Regulations Supervisor, The
  Boston Company (1991-1993) and Registration Specialist, Fidelity Management
  & Research Co. (1986-1991). Officer of various investment companies managed
  by Eaton Vance or BMR. Mr. Murphy was elected Assistant Secretary of the
  Trust on March 27, 1995.

CARMEN  THOMPSON (41), Vice President of the Portfolio Trust Officer of The Bank
  of Nova Scotia Trust Company (Cayman) Limited.  Officer of various  investment
  companies  managed  by BMR or Eaton  Vance.  Mr.  Thompson  was  elected  Vice
  President of the Portfolio on November 21, 1994.
Address: The Bank of Nova Scotia Trust Company (Cayman) Ltd., The Bank of Nova
  Scotia Building, P.O. Box 501, George Town, Grand Cayman, Cayman Islands,
  British West Indies.

PAUL LAURET (53), Vice President of the Portfolio
Senior Trust Officer of The Bank of Nova Scotia Trust Company (Cayman)
  Limited. Officer of various investment companies managed by BMR or Eaton
  Vance. Mr. Lauret was elected Vice President of the Portfolio on November
  21, 1994.
Address: The Bank of Nova Scotia Trust Company (Cayman) Ltd., The Bank of Nova
  Scotia Building, P.O. Box 501, George Town, Grand Cayman, Cayman Islands,
  British West Indies.

RAYMOND O'NEILL (33), Vice President of the Portfolio  Managing  Director of IBT
Trust and Custodian Services (Ireland) Limited.
  Officer of various investment companies managed by BMR or Eaton Vance. Mr.
  O'Neill was elected Vice President of the Portfolio on November 21, 1994.
Address: Earlsfort Terrace, Dublin 2, Ireland.
    

    Messrs.  Thorndike  (Chairman),  Hayes and Reamer are members of the Special
Committee  of the  Board of  Trustees  of the Trust  and of the  Portfolio.  The
Special  Committee's  functions  include  a  continuous  review  of the  Trust's
contractual  relationship with the Administrator and the Portfolio's contractual
relationship with the Investment Adviser, making recommendations to the Trustees
regarding the  compensation  of those  Trustees who are not members of the Eaton
Vance  organization,  and  making  recommendations  to  the  Trustees  regarding
candidates  to fill  vacancies,  as and when they  occur,  in the ranks of those
Trustees who are not "interested  persons" of the Trust,  the Portfolio,  or the
Eaton Vance organization.

   
    Messrs.  Treynor (Chairman) and Dwight are members of the Audit Committee of
the Board of Trustees of the Trust and of the Portfolio.  The Audit  Committee's
functions include making recommendations to the Trustees regarding the selection
of the  independent  accountants,  and reviewing with such  accountants  and the
Treasurer of the Trust and of the Portfolio  matters  relative to accounting and
auditing  practices and  procedures,  accounting  records,  internal  accounting
controls, and the functions performed by the custodian and transfer agent of the
Fund and of the Portfolio.

    Trustees of the Portfolio who are not affiliated with the Investment Adviser
may  elect to defer  receipt  of all or a  percentage  of their  annual  fees in
accordance with the terms of a Trustees Deferred Compensation Plan (the "Plan").
Under the Plan, an eligible Trustee may elect to have his deferred fees invested
by the Portfolio in the shares of one or more funds in the Eaton Vance Family of
Funds,  and the amount paid to the  Trustees  under the Plan will be  determined
based upon the  performance of such  investments.  Deferral of Trustees' fees in
accordance  with the Plan  will  have a  negligible  effect  on the  Portfolio's
assets,  liabilities,  and net  income  per  share,  and will not  obligate  the
Portfolio to retain the services of any Trustee or obligate the Portfolio to pay
any particular level of compensation to the Trustee.

    The fees and expenses of those  Trustees of the Trust and the  Portfolio who
are not members of the Eaton Vance organization (the noninterested Trustees) are
paid by the  Fund  (and  the  other  series  of the  Trust)  and the  Portfolio,
respectively. For the compensation received by the noninterested Trustees of the
Trust and the Portfolio, see "Fees and Expenses" in Part II of this Statement of
Additional Information.
    

                     INVESTMENT ADVISER AND ADMINISTRATOR
   
    The Portfolio engages BMR as its investment adviser pursuant to an
Investment Advisory Agreement.  BMR or Eaton Vance acts as investment adviser to
investment  companies  and various  individual  and  institutional  clients with
combined assets under management of approximately $15 billion.
    

    Eaton Vance, its affiliates and its predecessor companies have been managing
assets of  individuals  and  institutions  since  1924 and  managing  investment
companies  since 1931.  They maintain a large staff of experienced  fixed-income
and equity investment  professionals to service the needs of their clients.  The
fixed-income  division  focuses  on all kinds of  taxable  investment-grade  and
high-yield  securities,  tax-exempt  investment-grade and high-yield securities,
and U.S. Government  securities.  The equity division covers stocks ranging from
blue chip to emerging growth companies.

    BMR manages the  investments  and  affairs of the  Portfolio  subject to the
supervision of the Portfolio's Board of Trustees. BMR furnishes to the Portfolio
investment research, advice and supervision, furnishes an investment program and
determines what securities will be purchased,  held or sold by the Portfolio and
what portion,  if any, of the Portfolio's  assets will be held  uninvested.  The
Investment  Advisory  Agreement requires BMR to pay the salaries and fees of all
officers and Trustees of the Portfolio  who are members of the BMR  organization
and all personnel of BMR performing services relating to research and investment
activities.  The Portfolio is responsible for all expenses not expressly  stated
to be payable by BMR under the Investment Advisory Agreement, including, without
implied limitation, (i) expenses of maintaining the Portfolio and continuing its
existence,  (ii)  registration  of the  Portfolio  under  the  1940  Act,  (iii)
commissions, fees and other expenses connected with the acquisition, holding and
disposition of securities and other investments,  (iv) auditing,  accounting and
legal expenses,  (v) taxes and interest,  (vi) governmental fees, (vii) expenses
of issue, sale and redemption of interests in the Portfolio,  (viii) expenses of
registering  and qualifying  the Portfolio and interests in the Portfolio  under
Federal and state  securities  laws and of preparing  and printing  registration
statements or other  offering  statements or memoranda for such purposes and for
distributing  the same to investors,  and fees and expenses of  registering  and
maintaining  registrations  of the  Portfolio and of the  Portfolio's  placement
agent as  broker-dealer  or agent under state  securities laws, (ix) expenses of
reports  and  notices  to  investors  and of  meetings  of  investors  and proxy
solicitations  therefor,  (x) expenses of reports to  governmental  officers and
commissions,  (xi) insurance expenses, (xii) association membership dues, (xiii)
fees,  expenses  and  disbursements  of  custodians  and  subcustodians  for all
services to the Portfolio  (including without  limitation  safekeeping of funds,
securities and other investments,  keeping of books,  accounts and records,  and
determination of net asset values, book capital account balances and tax capital
account  balances),  (xiv) fees,  expenses and disbursements of transfer agents,
dividend  disbursing  agents,  investor  servicing agents and registrars for all
services  to  the  Portfolio,  (xv)  expenses  for  servicing  the  accounts  of
investors, (xvi) any direct charges to investors approved by the Trustees of the
Portfolio, (xvii) compensation and expenses of Trustees of the Portfolio who are
not members of BMR's  organization,  and (xviii) such non-recurring items as may
arise,  including  expenses incurred in connection with litigation,  proceedings
and claims and the  obligation  of the  Portfolio  to  indemnify  its  Trustees,
officers and investors with respect thereto.

    The Investment Advisory Agreement between BMR and the Portfolio provides for
a monthly  advisory fee of .0625%  (equivalent  to .75% annually) of the average
daily net  assets of the  Portfolio  up to $500  million.  On net assets of $500
million and over the annual fee is reduced as follows:

                                                             ANNUALIZED FEE RATE
  AVERAGE DAILY NET ASSETS FOR THE MONTH                      (FOR EACH LEVEL)
  --------------------------------------                    -------------------
$500 million but less than $1 billion ...................          0.6875%
$1 billion but less than $1.5 billion ...................          0.6250%
$1.5 billion but less than $2 billion ...................          0.5625%
$2 billion but less than $3 billion .....................          0.5000%
$3 billion and over .....................................          0.4375%

   
    This fee is higher than that paid by most  investment  companies  due to the
additional  research and  management  efforts  required in  connection  with the
writing and purchase of options,  the  formation  and  implementation  of option
investment  strategies and the structuring of transactions in futures  contracts
and related  options.  On March 28, 1994, the Trustees of the Portfolio voted to
accept a waiver of BMR's  compensation  by  instituting  the  above  breakpoints
(effective  as of April 1, 1994) in the advisory  fee rate then  provided for in
the  Investment  Advisory  Agreement.  Prior to April 1,  1994,  the  Investment
Advisory  Agreement provided for a monthly advisory fee of .0625% (equivalent to
.75% annually) of the average daily net assets of the Portfolio.

    As at December 31, 1994, the Portfolio had net assets of  $515,669,513.  For
the fiscal year ended  December 31, 1994,  the Adviser  earned  advisory fees of
$4,259,500  (equivalent to .74% of the Portfolio's  average daily net assets for
such year).  For the period from the start of  business,  October 28,  1993,  to
December 31, 1993, the Adviser earned  advisory fees of $727,254  (equivalent to
.75% (annualized) of the Portfolio's average daily net assets for such period).

    The  Investment  Advisory  Agreement  with BMR is dated October 28, 1993 and
remains in effect until February 28, 1996. It may be continued  indefinitely  so
long as such  continuance  after February 28, 1996 is approved at least annually
(i) by the vote of a  majority  of the  Trustees  of the  Portfolio  who are not
interested  persons  of the  Portfolio  or of BMR cast in  person  at a  meeting
specifically  called for the purpose of voting on such  approval and (ii) by the
Board of Trustees of the  Portfolio or by vote of a majority of the  outstanding
voting securities of the Portfolio.  The Agreement may be terminated at any time
without  penalty on sixty (60) days' written  notice by the Board of Trustees of
either party, or by vote of the majority of the outstanding voting securities of
the Portfolio,  and the Agreement will terminate  automatically  in the event of
its  assignment.  The Agreement  provides that BMR may render services to others
and engage in other  business  activities  and may permit other fund clients and
other  corporations and  organizations to use the words "Eaton Vance" or "Boston
Management  and Research" in their names.  The Agreement  also provides that BMR
shall not be liable for any loss incurred in connection  with the performance of
its duties,  or action taken or omitted under that Agreement,  in the absence of
willful  misfeasance,  bad faith,  gross  negligence in the  performance  of its
duties or by reason of its  reckless  disregard  of its  obligations  and duties
thereunder,  or  for  any  losses  sustained  in  the  acquisition,  holding  or
disposition of any security or other investment.

    The  Bank  of  Nova  Scotia  Trust  Company  (Cayman)  Ltd.   maintains  the
Portfolio's   principal   office  and  certain  of  its  records  and   provides
administrative  assistance  in  connection  with  meetings  of  the  Portfolio's
Trustees and  interestholders,  for which services the Portfolio pays $1,500 per
annum.
    

    As indicated in the Prospectus,  Eaton Vance serves as  Administrator of the
Fund, but receives no compensation for providing  administrative services to the
Fund.  Under its  agreement  with the Fund,  Eaton  Vance  has been  engaged  to
administer the Fund's affairs, subject to the supervision of the Trustees of the
Trust,  and shall furnish for the use of the Fund office space and all necessary
office facilities,  equipment and personnel for administering the affairs of the
Fund.

    The Fund pays all of its own expenses  including,  without  limitation,  (i)
expenses of maintaining the Fund and continuing its existence, (ii) registration
of the Trust  under the 1940 Act,  (iii)  commissions,  fees and other  expenses
connected  with the purchase or sale of securities and other  investments,  (iv)
auditing,   accounting  and  legal  expenses,  (v)  taxes  and  interest,   (vi)
governmental fees, (vii) expenses of issue,  sale,  repurchase and redemption of
shares,  (viii)  expenses of registering  and qualifying the Fund and its shares
under  federal  and  state   securities  laws  and  of  preparing  and  printing
prospectuses for such purposes and for distributing the same to shareholders and
investors, and fees and expenses of registering and maintaining registrations of
the Fund and of the Fund's  principal  underwriter,  if any, as broker-dealer or
agent  under  state  securities  laws,  (ix)  expenses of reports and notices to
shareholders and of meetings of shareholders and proxy  solicitations  therefor,
(x) expenses of reports to governmental officers and commissions, (xi) insurance
expenses,   (xii)  association   membership  dues,  (xiii)  fees,  expenses  and
disbursements  of  custodians  and  subcustodians  for all  services to the Fund
(including  without  limitation  safekeeping  of  funds,  securities  and  other
investments,  keeping  of books  and  accounts  and  determination  of net asset
values),  (xiv) fees,  expenses and  disbursements of transfer agents,  dividend
disbursing agents,  shareholder servicing agents and registrars for all services
to the Fund, (xv) expenses for servicing shareholder accounts,  (xvi) any direct
charges  to  shareholders   approved  by  the  Trustees  of  the  Trust,  (xvii)
compensation  and  expenses  of Trustees of the Trust who are not members of the
Eaton Vance  organization,  and (xviii) such  non-recurring  items as may arise,
including  expenses  incurred in connection  with  litigation,  proceedings  and
claims and the  obligation  of the Trust to indemnify  its Trustees and officers
with respect thereto.

   
    BMR is a wholly-owned subsidiary of Eaton Vance. Eaton Vance and EV are both
wholly-owned  subsidiaries  of EVC.  BMR and Eaton Vance are both  Massachusetts
business trusts,  and EV is the trustee of BMR and Eaton Vance. The Directors of
EV are Landon T. Clay, H. Day Brigham,  Jr., M. Dozier Gardner,  James B. Hawkes
and Benjamin A.  Rowland,  Jr. The  Directors of EVC consist of the same persons
and John G. L. Cabot and Ralph Z. Sorenson. Mr. Clay is chairman and Mr. Gardner
is president and chief executive officer of EVC, BMR, Eaton Vance and EV. All of
the issued and outstanding shares of Eaton Vance and EV are owned by EVC. All of
the issued and outstanding shares of BMR are owned by Eaton Vance. All shares of
the outstanding Voting Common Stock of EVC are deposited in a Voting Trust which
expires on December 31,  1996,  the Voting  Trustees of which are Messrs.  Clay,
Brigham,  Gardner,  Hawkes and Rowland.  The Voting  Trustees have  unrestricted
voting  rights for the  election of  Directors  of EVC.  All of the  outstanding
voting trust receipts issued under said Voting Trust are owned by certain of the
officers of BMR and Eaton Vance who are also  officers and  Directors of EVC and
EV. As of March 31,  1995,  Messrs.  Clay,  Gardner and Hawkes each owned 24% of
such voting trust receipts,  and Messrs.  Rowland and Brigham owned 15% and 13%,
respectively,  of such voting trust receipts.  Messrs.  Gardner, Hawkes and Otis
are officers or Trustees of the Trust and the  Portfolio  and are members of the
EVC, BMR, Eaton Vance and EV organizations.  Messrs.  Alban,  O'Connor,  Murphy,
Terry and Venezia and Ms. Sanders and Ms. Schiff are officers or Trustees of the
Trust and/or the Portfolio  and are also members of the BMR,  Eaton Vance and EV
organizations.  BMR will  receive  the fees paid under the  Investment  Advisory
Agreement.

    Eaton Vance owns all of the stock of Energex  Corporation,  which is engaged
in oil and gas operations.  EVC owns all of the stock of Marblehead Energy Corp.
(which is engaged in oil and gas operations) and 77.3% of the stock of Investors
Bank & Trust Company,  custodian of the Fund and the  Portfolio,  which provides
custodial,  trustee  and  other  fiduciary  services  to  investors,   including
individuals, employee benefit plans, corporations, investment companies, savings
banks and other  institutions.  In  addition,  Eaton Vance owns all the stock of
Northeast  Properties,  Inc.,  which  is  engaged  in  real  estate  investment,
management and consulting. EVC owns all of the stock of Fulcrum Management, Inc.
and  MinVen,  Inc.,  which are  engaged in the  development  of  precious  metal
properties. EVC, BMR, Eaton Vance and EV may also enter into other businesses.
    

    EVC and its  affiliates  and their  officers and employees from time to time
have  transactions  with various banks,  including the custodian of the Fund and
the Portfolio,  Investors Bank & Trust Company. It is Eaton Vance's opinion that
the  terms  and  conditions  of  such  transactions  were  not and  will  not be
influenced by existing or potential custodial or other relationships between the
Trust or the Portfolio and such banks.

   
                                  CUSTODIAN

    Investors  Bank  &  Trust  Company  ("IBT"),  24  Federal  Street,   Boston,
Massachusetts  (a 77.3% owned  subsidiary of EVC) acts as custodian for the Fund
and the Portfolio.  IBT has the custody of all cash and securities  representing
the Fund's  interest in the  Portfolio  and has  custody of all the  Portfolio's
assets,  and its subsidiary,  IBT Fund Services  (Canada) Inc., 1 First Canadian
Place, King Street West, Toronto,  Ontario, Canada, maintains the general ledger
of the  Portfolio  and the  Fund and  computes  the  daily  net  asset  value of
interests in the Portfolio and the net asset value of shares of the Fund. In its
capacity as custodian,  IBT it attends to details in  connection  with the sale,
exchange,  substitution,   transfer  or  other  dealings  with  the  Portfolio's
investments,  receives  and  disburses  all funds  and  performs  various  other
ministerial  duties upon  receipt of proper  instructions  from the Fund and the
Portfolio. IBT charges fees which are competitive within the industry. A portion
of the fee relates to custody,  bookkeeping and valuation  services and is based
upon a  percentage  of Fund and  Portfolio  net  assets and a portion of the fee
relates to activity  charges,  primarily  the number of portfolio  transactions.
These  fees are then  reduced by a credit for cash  balances  of the  particular
investment  company at the custodian equal to 75% of the 91-day,  U.S.  Treasury
Bill auction rate applied to the particular  investment  company's average daily
collected  balances  for the week.  In view of the  ownership of EVC in IBT, the
Portfolio is treated as a  self-custodian  pursuant to Rule 17f-2 under the 1940
Act, and the Portfolio's  investments  held by IBT as custodian are thus subject
to the additional  examinations  by the Portfolio's  independent  accountants as
called  for by such Rule.  For the fiscal  year ended  December  31,  1994,  the
Portfolio paid IBT $181,138. For the custody fees that the Fund paid to IBT, see
"Fees and Expenses" in Part II of this Statement of Additional Information.

                            SERVICE FOR WITHDRAWAL

    By a  standard  agreement,  the  Trust's  Transfer  Agent  will  send to the
shareholder  regular  monthly or  quarterly  payments  of any  permitted  amount
designated  by  the  shareholder  (see  "Eaton  Vance  Shareholder  Services  --
Withdrawal  Plan" in the Fund's  Prospectus)  based upon the value of the shares
held. The checks will be drawn from share  redemptions and hence are a return of
principal.  Income dividends and capital gains  distributions in connection with
withdrawal  accounts  will be  credited at net asset value as of the record date
for each  distribution.  Continued  withdrawals in excess of current income will
eventually  use up  principal,  particularly  in a period  of  declining  market
prices.
    

    To use this  service,  at  least  $5,000  in cash or  shares  at the  public
offering  price  will  have  to  be  deposited  with  the  Transfer  Agent.  The
maintenance of a withdrawal plan  concurrently with purchases of additional Fund
shares would be disadvantageous if a sales charge is included in such purchases.
A shareholder  may not have a withdrawal  plan in effect at the same time he has
authorized Bank Automated  Investing or is otherwise making regular purchases of
Fund  shares.  Either  the  shareholder,  the  Transfer  Agent or the  Principal
Underwriter  will be able to terminate the  withdrawal  plan at any time without
penalty.

                       DETERMINATION OF NET ASSET VALUE
   
    The net asset value of the Portfolio and of shares of the Fund is determined
by the  Custodian  (as  agent  for the Fund  and the  Portfolio)  in the  manner
described under "Valuing Fund Shares" in the Fund's current Prospectus. The Fund
and the  Portfolio  will be  closed  for  business  and  will  not  price  their
respective shares or interests on the following  business  holidays:  New Year's
Day, Presidents' Day, Good Friday (a New York Stock Exchange holiday),  Memorial
Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

    Except as described  below,  debt securities for which the  over-the-counter
market is the primary market are normally  valued at the mean between the latest
available bid and asked  prices.  OTC options are valued at the mean between the
bid and asked prices provided by dealers.  Financial futures contracts listed on
commodity exchanges and exchange-traded options are valued at closing settlement
prices.  Short-term obligations having remaining maturities of less than 60 days
are valued at amortized  cost,  which  approximates  value,  unless the Trustees
determine  that under  particular  circumstances  such method does not result in
fair  value.  As  authorized  by  the  Trustees,  debt  securities  (other  than
short-term  obligations) may be valued on the basis of valuations furnished by a
pricing service which determines  valuations based upon market  transactions for
normal,  institutional-size  trading units of such  securities.  Mortgage-backed
"pass-through"  securities  are valued  through use of a matrix  pricing  system
which  takes  into  account  closing  bond  valuations,   yield   differentials,
anticipated  prepayments  and interest  rates.  Securities for which there is no
such  quotation  or  valuation  and all other assets are valued at fair value as
determined  in  good  faith  by or at  the  direction  of  the  Trustees  of the
Portfolio.

    Each investor in the Portfolio, including the Fund, may add to or reduce its
investment  in the  Portfolio  on each  day the New  York  Stock  Exchange  (the
"Exchange")  is open for trading  ("Portfolio  Business Day") as of the close of
regular trading on the Exchange (the "Portfolio  Valuation Time").  The value of
each investor's  interest in the Portfolio will be determined by multiplying the
net asset value of the  Portfolio  by the  percentage,  determined  on the prior
Portfolio Business Day, which represented that investor's share of the aggregate
interests in the Portfolio on such prior day. Any additions or  withdrawals  for
the  current  Portfolio  Business  Day will then be  recorded.  Each  investor's
percentage of the aggregate interest in the Portfolio will then be recomputed as
a percentage equal to a fraction (i) the numerator of which is the value of such
investor's investment in the Portfolio as of the Portfolio Valuation Time on the
prior  Portfolio  Business Day plus or minus,  as the case may be, the amount of
any additions to or withdrawals from the investor's  investment in the Portfolio
on the current  Portfolio  Business Day and (ii) the denominator of which is the
aggregate net asset value of the Portfolio as of the Portfolio Valuation Time on
the prior  Portfolio  Business Day plus or minus, as the case may be, the amount
of the net  additions to or  withdrawals  from the  aggregate  investment in the
Portfolio  on  the  current  Portfolio  Business  Day by  all  investors  in the
Portfolio.  The  percentage so determined  will then be applied to determine the
value of the  investor's  interest in the  Portfolio  for the current  Portfolio
Business Day.
    

                            INVESTMENT PERFORMANCE

   
    The 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 all dividends and  distributions are reinvested at net
asset value on the  reinvestment  dates  during the  period,  and either (i) the
deduction of the maximum sales charge from the initial $1,000 purchase order, or
(ii) a complete  redemption of the investment and, if applicable,  the deduction
of the  contingent  deferred  sales  charge  at  the  end  of  the  period.  For
information   concerning  the  total  return  of  the  Fund,  see   "Performance
Information" in Part II of this Statement of Additional Information.

    The Fund's yield is computed pursuant to a standardized  formula by dividing
its net investment  income per share earned during a recent thirty-day period by
the maximum offering price (including, if applicable,  the maximum sales charge)
per share on the last day of the period and  annualizing  the resulting  figure.
Net investment income per share is calculated from the yields to maturity of all
obligations  held by the  Portfolio  based on  prescribed  methods,  reduced  by
accrued Fund expenses for the period with the resulting  number being divided by
the average  daily  number of Fund shares  outstanding  and  entitled to receive
distributions during the period. The yield figure does not reflect the deduction
of  any  contingent   deferred  sales  charges  which  are  imposed  on  certain
redemptions  at the rate set forth  under  "How to Redeem  Fund  Shares"  in the
Prospectus.  For the yield of the Fund, see "Performance Information" in Part II
of this Statement of Additional Information.

    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 net asset value
per share.  The Fund's effective  distribution  rate is computed by dividing the
distribution  rate by the ratio (the days in a year  divided by the accrual days
of the monthly  period) used to annualize the most recent  monthly  distribution
and reinvesting the resulting amount for a full year on the basis of such ratio.
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
held by the Portfolio based 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 and short-term  capital gain actually earned
by the Fund  during  the  month.  See  "Distributions  and  Taxes" in the Fund's
current Prospectus.  For the Fund's distribution rate and effective distribution
rate, see  "Performance  Information" in Part II of this Statement of Additional
Information.
    

    The Fund's  total  return may be  compared to the  Consumer  Price Index and
various  domestic  securities  indices.  The Fund's total return and comparisons
with these indices may be used in advertisements and in information furnished to
present or prospective shareholders. The Fund's performance may differ from that
of other investors in the Portfolio, including any other investment companies.

    From time to time, information, charts and illustrations showing the effects
of  compounding  interest may be included in  advertisements  and other material
furnished to present and prospective shareholders. Compounding is the process of
earning  interest on principal plus interest that was earned  earlier.  Interest
can be  compounded  annually,  semi-annually,  quarterly or daily,  e.g.  $1,000
compounded  annually  at 9% will grow to $1,090 at the end of the first year and
$1,188 at the end of the second year.  The extra $8, which was earned on the $90
interest  from the first  year,  is the  compound  interest.  $1,000  compounded
annually  at 9% grows to $2,367 at the end of 10 years and  $5,604 at the end of
20 years.  Other examples of compounding  $1,000 annually are 7% grows to $1,967
at the end of 10 years  and  $3,870 at the end of 20  years.  At 12% the  $1,000
grows to $3,106 at the end of 10 years and $9,646 at the end of 20 years. All of
these examples are for illustrative  purposes only and are not meant to indicate
performance of the Fund.

    From  time to  time,  information,  charts  and  illustrations  relating  to
inflation  and the  effects  of  inflation  on the  dollar  may be  included  in
advertisements   and  other  material   furnished  to  present  and  prospective
shareholders. For example: After 10 years, the purchasing power of $25,000 would
shrink  to  $16,621,  $14,968,  $13,465  and  $12,100,  if the  annual  rates of
inflation during such period were 4%, 5%, 6% and 7%, respectively. (To calculate
the purchasing  power, the value at the end of each year is reduced by the above
inflation rates for 10 consecutive years.)

    From time to time,  evaluations  of the  Fund's  performance  may be made by
independent sources, e.g. Lipper Analytical Services, Inc., CDA/Wiesenberger and
Morningstar, Inc., may be used in advertisements and in information furnished to
present or prospective shareholders.

   
    From time to time,  information about the portfolio  allocation and holdings
of the  Portfolio at a  particular  date may be included in  advertisements  and
other  material  furnished  to  present  and  prospective   shareholders.   Such
information,  for example, may include the Portfolio's  diversification by asset
type,  including  mortgage-backed  securities  which  have  pools of  individual
mortgages originated 15 to 20 years ago having interest rates of 4-8% and having
balances  of  approximately  $10,000  ("low-coupon  seasoned  mortgages");   and
mortgage-backed securities which have pools of individual mortgages originated 5
to 10 years  ago  having  interest  rates  of  11-16%  and  having  balances  of
approximately $25,000 ("high-coupon seasoned mortgages").

    For example,  the Portfolio's  diversification by asset type as of March 31,
1995 was:

  PORTFOLIO ASSET ALLOCATION                              PERCENT OF INVESTMENTS
  --------------------------                              ----------------------
  Mortgage-Backed Securities
    Low Coupons: 4-8%                                               59%
    High Coupons: 11-16%                                            23%
    Other                                                            5%
  U.S. Treasuries, U.S. Government Agency
    Debentures & Other Mortgage-Backed Securities                   13%
                                                                   ----
  TOTAL                                                            100%
    

    Information used in advertisements and in materials furnished to present and
prospective shareholders may include statements or illustrations relating to the
appropriateness of types of securities and/or mutual funds which may be employed
to meet specific financial goals, such as (1) funding retirement, (2) paying for
children's education,  and (3) financially supporting aging parents. These three
financial  goals may be referred to in such  advertisements  or materials as the
"Triple Squeeze."

   
    For additional information,  charts and illustrations relating to the Fund's
investment  performance,  see  "Performance  Information"  in  Part  II of  this
Statement of Additional Information.
    

                                    TAXES

   
    See   "Distributions  and  Taxes"  in  the  Fund's  current  Prospectus  and
"Additional Tax Matters" in Part II of this Statement of Additional Information.

    Each series of the Trust is treated as a separate  entity for Federal income
tax  purposes.  The Fund has  elected or will elect to be treated and intends to
qualify each year as a regulated  investment  company ("RIC") under the Internal
Revenue Code ("the  Code").  Accordingly,  the Fund  intends to satisfy  certain
requirements relating to sources of its income and diversification of its assets
and to  distribute  all of its net  investment  income and net realized  capital
gains  (after  reduction  by  any  available  capital  loss   carryforwards)  in
accordance with the timing requirements  imposed by the Code, so as to avoid any
Federal income or excise tax to the Fund. Because the Fund invests its assets in
the  Portfolio,  the Portfolio  normally must satisfy the  applicable  source of
income and  diversification  requirements in order for the Fund to satisfy them.
The Portfolio will allocate at least annually among its investors, including the
Fund, the Portfolio's net investment income, net realized capital gains, and any
other items of income,  gain, loss, deduction or credit. The Portfolio will make
allocations to the Fund in accordance  with the Code and applicable  regulations
and will make  moneys  available  for  withdrawal  at  appropriate  times and in
sufficient   amounts  to  enable  the  Fund  to  satisfy  the  tax  distribution
requirements that apply to the Fund and that must be satisfied in order to avoid
Federal  income  and/or  excise tax on the Fund.  For  purposes of applying  the
requirements  of the Code  regarding  qualification  as a RIC,  the Fund will be
deemed (i) to own its proportionate share of each of the assets of the Portfolio
and (ii) to be entitled to the gross  income of the  Portfolio  attributable  to
such share.

    In  order to avoid  Federal  excise  tax,  the Code  requires  that the Fund
distribute  (or be deemed to have  distributed)  by December 31 of each calendar
year at least 98% of its ordinary income (not including  tax-exempt  income) for
such year,  at least 98% of the excess of its  realized  capital  gains over its
realized capital losses,  generally computed on the basis of the one-year period
ending on October 31 of such year, after reduction by any available capital loss
carryforwards,  and 100% of any ordinary income and capital gains from the prior
year (as  previously  computed)  that was not paid out  during  such year and on
which the Fund paid no Federal income tax. Further,  under current law, provided
that the  Fund  qualifies  as a RIC for  Federal  income  tax  purposes  and the
Portfolio  is  treated  as a  partnership  for  Massachusetts  and  Federal  tax
purposes, neither the Fund nor the Portfolio is liable for any income, corporate
excise or franchise tax in the Commonwealth of Massachusetts.
    

    The  Portfolio's   transactions  in  foreign   currency,   foreign  currency
denominated  debt securities,  payables and receivables,  options and futures on
foreign currency and forward foreign currency exchange  contracts are subject to
special tax rules that may convert  capital gain or loss into ordinary income or
loss and may affect the amount,  timing and character of the Portfolio's  income
or  loss  and  hence  of  allocations   and/or   distributions   to  the  Fund's
shareholders.

   
    Positions held by the Portfolio which consist of one or more debt securities
and one or more listed options or futures contracts which substantially diminish
the risk of loss of the Portfolio with respect to such debt  securities  will be
treated as "mixed straddles" for Federal income tax purposes. Such straddles are
ordinarily  subject to the provisions of Section 1092 of the Code, the operation
of which can result in deferral of losses, adjustments in the holding periods of
the Portfolio's debt securities and conversion of short-term capital losses into
long-term  capital  losses.  The  operation  of these rules can be  mitigated or
eliminated  by means of various  elections  which are available to the Portfolio
for Federal income tax purposes.
    

    To eliminate the application of these rules, the Portfolio has elected mixed
straddle  accounting for one or more designated classes of activities  involving
mixed  straddles.  Under this  method of  accounting,  figures  are  derived for
aggregate  short-term and long-term capital gains and losses associated with all
positions in a mixed straddle account on a daily basis. Specifically,  gains and
losses are  computed  for all  positions  disposed  of on a given  day,  and all
outstanding  positions on such day are marked to market  (subject to  subsequent
adjustments to reflect the gain or loss realized thereby). Gains and losses from
all  positions in debt  securities  in the account are netted,  as are gains and
losses from all positions in options and futures.  If the two resulting  figures
both represent net gains or net losses, the net gain or loss attributable to the
debt securities is treated as short-term  capital gain or loss, and the net gain
or loss  attributable  to the options and  futures  contracts  is treated as 60%
long-term  and 40%  short-term  capital  gain  or  loss.  Alternatively,  if the
resulting  figures  represent  a net gain and a net loss,  the two  figures  are
further  netted to arrive at a single figure for the day. This figure is treated
as 60% long-term and 40% short-term  capital gain or loss unless it reflects the
fact that the net gain or loss from the debt securities  outweighed the net gain
or loss from the  options and  futures,  in which case this figure is treated as
short-term capital gain or loss.

    On the last business day of the taxable year the annual  account net gain or
loss for each mixed  straddle  account is  determined  by netting  the daily net
gains or losses for each  business  day during the  taxable  year.  (The  annual
account  net gain or loss is  adjusted to take into  account  any  interest  and
carrying charges incurred in connection with positions in the account which were
required to be capitalized.)  Annual account net gains or losses are then netted
for all mixed  straddle  accounts to yield the total annual  account net gain or
loss. This figure is subject to an overall limitation such that no more than 50%
of it will be treated as long-term  capital gain and no more than 40% of it will
be treated as short-term capital loss.

    The Portfolio may make other tax elections  with respect to mixed  straddles
which do not properly belong in any of its mixed straddle accounts.

    In the absence of a mixed  straddle  election,  futures or currency  forward
contracts  entered into by the Portfolio and listed nonequity options written or
purchased by the Portfolio  (including  options on debt  securities,  options on
futures  contracts,  options on  securities  indexes and options on  broad-based
stock indexes, but possibly excluding certain foreign currency-related  options,
futures or forward  contracts)  will be  governed  by Section  1256 of the Code.
Absent a tax election to the contrary,  gain or loss  attributable to the lapse,
exercise or closing out of any such  position  will be treated as 60%  long-term
and 40%  short-term  capital  gain or loss,  and on the last  trading day of the
Portfolio's  taxable year all outstanding  Section 1256 positions will be marked
to market (i.e.,  treated as if such  positions were closed out at their closing
price on such day),  and any  resulting  gain or loss will be  recognized as 60%
long-term and 40% short-term capital gain or loss. Under certain  circumstances,
entry into a futures contract to sell a security or the purchase of a put option
with  respect to a security may  constitute a short sale for Federal  income tax
purposes, causing an adjustment in the holding period of the underlying security
or a substantially identical security held by the Portfolio.

    The Portfolio will monitor its  transactions in options,  futures  contracts
and forward  contracts in order to enable the Fund to maintain its qualification
as a RIC for Federal income tax purposes.

    The Portfolio's  investment in securities acquired at a market discount,  or
zero coupon and certain other securities with original issue discount will cause
it to realize income prior to the receipt of cash payments with respect to these
securities.  Such income will be allocated  daily to interests in the  Portfolio
and, in order to enable the Fund to distribute its  proportionate  share of this
income and avoid a tax  payable by the Fund,  the  Portfolio  may be required to
liquidate portfolio securities that it might otherwise have continued to hold in
order  to  generate  cash  that the Fund may  withdraw  from the  Portfolio  for
subsequent distribution to Fund shareholders.

   
    Redemptions  (including  exchanges) of Fund shares are taxable transactions.
Any loss realized  upon the  redemption or exchange of shares of the Fund with a
tax holding  period of 6 months or less will be treated as a  long-term  capital
loss to the  extent of any  distribution  of net  long-term  capital  gains with
respect  to such  shares.  All or a portion  of a loss  realized  upon a taxable
disposition  of Fund shares may be  disallowed  under "wash sale" rules if other
Fund  shares  are  purchased  (whether  through  reinvestment  of  dividends  or
otherwise)  within 30 days before or after the disposition.  Any disallowed loss
will result in an  adjustment to the  shareholder's  tax basis in some or all of
the other shares acquired.

    Distributions  by the Fund reduce the net asset value of the Fund's  shares.
Should a  distribution  reduce the net asset  value below a  shareholder's  cost
basis, such distribution  would be taxable to the shareholder even though,  from
an  investment  standpoint,  it may  constitute  a return  of a  portion  of the
purchase price.  Therefore,  investors  should consider the tax  implications of
buying shares immediately before a distribution.  Certain distributions declared
in October, November or December and paid the following January will be taxed to
shareholders  as if  received  on  December  31 of the  year in  which  they are
declared.

    Distributions  of the  Fund  will not  qualify  for the  dividends  received
deduction available to certain corporations,  subject to applicable  limitations
under the Code. A state income (and  possibly  local  income  and/or  intangible
property)  tax  exemption  is  generally  available  to the  extent  the  Fund's
distributions  are derived  from  interest  on (or,  in the case of  intangibles
taxes,  the value of its assets is  attributable  to)  certain  U.S.  Government
obligations,  provided in some states that  certain  thresholds  for holdings of
such  obligations  and/or reporting  requirements  are satisfied.  The Fund will
inform  shareholders  of the proportion of its  distributions  which are derived
from interest on such  obligations.  Shareholders are urged to consult their tax
advisers  regarding the proper treatment of such portion of their  distributions
for state and local income tax purposes.
    

    Special tax rules apply to Individual  Retirement  Accounts  ("IRAs") and to
other retirement  plans, and persons investing through such plans should consult
their tax advisers for more information.

   
    Amounts paid by the Fund to individuals and certain other  shareholders  who
have not provided the Fund with their correct taxpayer identification number and
certain required  certifications,  as well as shareholders  with respect to whom
the Fund has  received  notification  from the  Internal  Revenue  Service  or a
broker,  may be subject to "backup"  withholding  of Federal income tax from the
Fund's dividends and  distributions  and the proceeds of redemptions  (including
repurchases  and  exchanges)  at  a  rate  of  31%.  An  individual's   taxpayer
identification number is generally his or her social security number.

    Non-resident  alien  individuals and certain foreign  corporations and other
foreign entities  generally will be subject to a U.S.  withholding tax at a rate
of 30% on the Fund's  distributions  from its ordinary  income and the excess of
its net short-term  capital gain over its net long-term capital loss, unless the
tax is reduced or eliminated by an applicable tax treaty. Distributions from the
excess of the Fund's net long-term capital gain over its net short-term  capital
loss  received  by such  shareholders  and  any  gain  from  the  sale or  other
disposition of shares of the Fund generally will not be subject to U.S.  Federal
income taxation,  provided that non-resident  alien status has been certified by
the  shareholder.  Different U.S. tax consequences may result if the shareholder
is engaged in a trade or business in the United States, is present in the United
States for a sufficient  period of time during a taxable year to be treated as a
U.S. resident, or fails to provide any required certifications  regarding status
as a non-resident alien investor.  Foreign shareholders should consult their tax
advisers regarding the U.S. and foreign tax consequences of an investment in the
Fund.

    The foregoing  discussion does not describe many of the tax rules applicable
to  certain  classes  of  investors,  such as IRAs and other  retirement  plans,
tax-exempt   entities,   insurance   companies   and   financial   institutions.
Shareholders  should  consult  their own tax  advisers  with respect to these or
other special tax rules that may apply in their particular  situations,  as well
as the state, local or foreign tax consequences of investing in the Fund.
    

                       PORTFOLIO SECURITY TRANSACTIONS

    Decisions  concerning  the  execution  of portfolio  security  transactions,
including the selection of the market and the firm, are made by BMR. BMR is also
responsible for the execution of transactions  for all other accounts managed by
it.

    BMR places the portfolio  security  transactions of the Portfolio and of all
other accounts managed by it for execution with many firms. Eaton Vance uses its
best efforts to obtain  execution of portfolio  security  transactions at prices
which are advantageous to the Portfolio and at reasonably competitive spreads or
(when a  disclosed  commission  is  being  charged)  at  reasonably  competitive
commission  rates. In seeking such execution,  BMR will use its best judgment in
evaluating the terms of a transaction,  and will give  consideration  to various
relevant  factors,  including  without  limitation  the  size  and  type  of the
transaction, the general execution and operational capabilities of the executing
firm,   the  nature  and  character  of  the  market  for  the   security,   the
confidentiality,  speed and  certainty of effective  execution  required for the
transaction, the reputation,  reliability, experience and financial condition of
the firm,  the value and quality of the  services  rendered by the firm in other
transactions,  and the  reasonableness  of the commission or spread, if any. The
debt  securities  and  obligations  purchased  and  sold  by the  Portfolio  are
generally traded in the domestic  over-the-counter  markets on a net basis (i.e.
without  commission)  through  broker-dealers  and  banks  acting  for their own
accounts  rather than as brokers,  or otherwise  involve  transactions  with the
issuer of such obligations.  Such firms attempt to profit from such transactions
by buying at the bid price and  selling at the higher  asked price of the market
for such  obligations,  and the  difference  between  the bid and asked price is
customarily  referred to as the spread.  The  Portfolio  may also  purchase such
obligations  from  domestic   underwriters,   the  cost  of  which  may  include
undisclosed  fees and  concessions  to the  underwriters.  Although  spreads  or
commissions  paid on portfolio  security  transactions  will, in the judgment of
BMR, be reasonable in relation to the value of the services provided, spreads or
commissions exceeding those which another firm might charge may be paid to firms
who were selected to execute  transactions  on behalf of the Portfolio and BMR's
other clients for providing brokerage and research services to BMR.

    As  authorized in Section  28(e) of the  Securities  Exchange Act of 1934, a
broker or dealer who executes a portfolio security  transaction on behalf of the
Portfolio  may  receive  compensation  which  is in  excess  of  the  amount  of
compensation  another  broker or dealer  would have charged for  effecting  that
transaction  if  BMR  determines  in  good  faith  that  such  compensation  was
reasonable  in  relation to the value of the  brokerage  and  research  services
provided.  This determination may be made on the basis of either that particular
transaction  or on the  basis  of  overall  responsibilities  which  BMR and its
affiliates have for accounts over which they exercise investment discretion.  In
making any such  determination,  BMR will not attempt to place a specific dollar
value on the  brokerage  and research  services  provided or to  determine  what
portion of the  compensation  should be related to such services.  Brokerage and
research  services  may  include  advice  as to the  value  of  securities,  the
advisability  of  investing  in,  purchasing,  or  selling  securities,  and the
availability  of securities or purchasers or sellers of  securities;  furnishing
analyses  and  reports  concerning  issuers,  industries,  securities,  economic
factors  and  trends,  portfolio  strategy  and  the  performance  of  accounts;
effecting  securities  transactions and performing  functions incidental thereto
(such as clearance and settlement);  and the "Research  Services" referred to in
the next paragraph.

    It is a common practice of the investment advisory industry for the advisers
of investment  companies,  institutions and other investors to receive research,
statistical  and  quotation  services,  data,  information  and other  services,
products and materials  which assist such advisers in the  performance  of their
investment responsibilities ("Research Services") from broker-dealer firms which
execute  portfolio  transactions for the clients of such advisers and from third
parties with which such broker-dealers  have arrangements.  Consistent with this
practice,  BMR receives  Research  Services from many  broker-dealer  firms with
which BMR places the  Portfolio  transactions  and from third parties with which
these  broker-dealers  have  arrangements.  These Research Services include such
matters as general  economic and market reviews,  industry and company  reviews,
evaluations   of  securities   and  portfolio   strategies   and   transactions,
recommendations  as to the purchase and sale of securities  and other  portfolio
transactions,  financial, industry and trade publications,  news and information
services,  pricing and quotation  equipment and services,  and research oriented
computer hardware,  software,  data bases and services.  Any particular Research
Service obtained  through a broker-dealer  may be used by BMR in connection with
client  accounts  other  than  those  accounts  which  pay  commissions  to such
broker-dealer.  Any such Research  Service may be broadly useful and of value to
BMR in rendering investment advisory services to all or a significant portion of
its  clients,  or may be  relevant  and  useful for the  management  of only one
client's  account  or of a few  clients'  accounts,  or may be  useful  for  the
management  of merely a segment  of certain  clients'  accounts,  regardless  of
whether  any such  account or accounts  paid  commissions  to the  broker-dealer
through which such Research  Service was obtained.  The advisory fee paid by the
Portfolio  is not reduced  because BMR  receives  such  Research  Services.  BMR
evaluates  the nature and  quality of the  various  Research  Services  obtained
through  broker-dealer firms and attempts to allocate sufficient  commissions to
such  firms to ensure  the  continued  receipt of  Research  Services  which BMR
believes are useful or of value to it in rendering  investment advisory services
to its clients.

    Subject to the  requirement  that BMR shall use its best  efforts to seek to
execute portfolio security transactions at advantageous prices and at reasonably
competitive  spreads or  commission  rates,  BMR is  authorized to consider as a
factor in the selection of any broker-dealer firm with whom portfolio orders may
be placed the fact that such firm has sold or is  selling  shares of the Fund or
of other investment  companies  sponsored by BMR or Eaton Vance.  This policy is
not inconsistent with a rule of the National  Association of Securities Dealers,
Inc.,  which rule  provides  that no firm  which is a member of the  Association
shall favor or disfavor the distribution of shares of any particular  investment
company or group of investment  companies on the basis of brokerage  commissions
received or expected by such firm from any source.

   
    Securities   considered  as  investments  for  the  Portfolio  may  also  be
appropriate for other investment accounts managed by BMR or its affiliates.  BMR
will attempt to allocate  equitably  portfolio  security  transactions among the
Portfolio and the portfolios of its other investment accounts whenever decisions
are made to purchase or sell securities by the Portfolio and one or more of such
other accounts simultaneously.  In making such allocations,  the main factors to
be considered are the respective investment objectives of the Portfolio and such
other  accounts,  the  relative  size  of  portfolio  holdings  of the  same  or
comparable securities,  the availability of cash for investment by the Portfolio
and such  accounts,  the size of investment  commitments  generally  held by the
Portfolio  and such  accounts  and the opinions of the persons  responsible  for
recommending  investments  to  the  Portfolio  and  such  accounts.  While  this
procedure  could  have a  detrimental  effect  on the  price  or  amount  of the
securities  available to the  Portfolio  from time to time, it is the opinion of
the Trust's and the  Portfolio's  Board of Trustees that the benefits  available
from the BMR organization outweigh any disadvantage that may arise from exposure
to simultaneous  transactions.  For the fiscal year ended December 31, 1994, and
for the period from the start of  business,  October 28,  1993,  to December 31,
1993,  the  Portfolio  paid  no  brokerage  commissions  on  portfolio  security
transactions.
    

                              OTHER INFORMATION

    Eaton Vance,  pursuant to its agreement with the Trust,  controls the use of
the words "Eaton  Vance" in the Fund's name and may use the words "Eaton  Vance"
in other connections and for other purposes.

   
    As permitted by  Massachusetts  law,  there will  normally be no meetings of
shareholders for the purpose of electing  Trustees unless and until such time as
less than a majority  of the  Trustees  of the Trust  holding  office  have been
elected by shareholders.  In such an event the Trustees then in office will call
a shareholders'  meeting for the election of Trustees.  Except for the foregoing
circumstances  and unless  removed by action of the  shareholders  in accordance
with the Trust's  by-laws,  the Trustees  shall  continue to hold office and may
appoint successor Trustees.
    

    The Trust's Amended and Restated  Declaration of Trust may be amended by the
Trustees  when  authorized  by  vote of a  majority  of the  outstanding  voting
securities of the Trust,  the  financial  interests of which are affected by the
amendment. The Trustees may also amend the Declaration of Trust without the vote
or consent of  shareholders  to change the name of the Trust or any series or to
make  such  other  changes  as do not have a  materially  adverse  effect on the
financial  interests of  shareholders or if they deem it necessary to conform it
to applicable  Federal or state laws or regulations.  The Trust or any series or
class thereof may be terminated by: (1) the  affirmative  vote of the holders of
not less than  two-thirds of the shares  outstanding and entitled to vote at any
meeting of shareholders of the Trust or the appropriate series or class thereof,
or by an instrument or instruments in writing without a meeting, consented to by
the  holders  of  two-thirds  of the  shares  of the  Trust or a series or class
thereof,  provided,  however,  that, if such  termination  is recommended by the
Trustees,  the vote of a majority of the  outstanding  voting  securities of the
Trust or a series or class thereof  entitled to vote thereon shall be sufficient
authorization;  or (2) by means of an instrument in writing signed by a majority
of the Trustees, to be followed by a written notice to shareholders stating that
a majority of the Trustees has determined that the  continuation of the Trust or
a series or a class  thereof  is not in the best  interest  of the  Trust,  such
series or class or of their respective shareholders.

   
    The  Declaration  of Trust  further  provides  that the Trustees will not be
liable for errors of judgment  or  mistakes  of fact or law;  but nothing in the
Declaration of Trust protects a Trustee  against any liability to which he would
otherwise  be  subject  by reason  of  willful  misfeasance,  bad  faith,  gross
negligence,  or reckless  disregard of the duties involved in the conduct of his
office.  In addition,  the By-Laws of the Trust  provide that no natural  person
shall  serve as a Trustee of the Trust  after the  holders of record of not less
than two-thirds of the outstanding  shares have declared that he be removed from
office either by  declaration  in writing filed with the custodian of the assets
of the Trust or by votes cast in person or by proxy at a meeting  called for the
purpose.  The By-laws  further  provide  that under  certain  circumstances  the
shareholders  may call a  meeting  to  remove a  Trustee  and that the  Trust is
required to provide  assistance in communicating  with shareholders about such a
meeting.  The By-Laws  also  provide that the  Trustees  shall  promptly  call a
meeting of shareholders  for the purpose of voting upon a question of removal of
a Trustee when  requested so to do by the record holders of not less than 10 per
centum of the outstanding shares.
    

    In accordance  with the  Declaration of Trust of the  Portfolio,  there will
normally be no meetings of the  investors  for the purpose of electing  Trustees
unless  and until  such time as less than a  majority  of the  Trustees  holding
office  have been  elected by  investors.  In such an event the  Trustees of the
Portfolio  then in office will call an  investors'  meeting for the  election of
Trustees. Except for the foregoing circumstances and unless removed by action of
the investors in  accordance  with the  Portfolio's  Declaration  of Trust,  the
Trustees shall continue to hold office and may appoint successor Trustees.

    The  Declaration  of Trust of the  Portfolio  provides  that no person shall
serve as a Trustee if investors holding  two-thirds of the outstanding  interest
have removed him from that office either by a written declaration filed with the
Portfolio's custodian or by votes cast at a meeting called for that purpose. The
Declaration  of Trust  further  provides that under  certain  circumstances  the
investors  may call a  meeting  to remove a Trustee  and that the  Portfolio  is
required to provide  assistance in  communicating  with  investors  about such a
meeting.

    The right to redeem  shares of the Fund 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 SEC, or during any  emergency as
determined by the Commission which makes it  impracticable  for the Portfolio to
dispose  of its  securities  or value its  assets,  or during  any other  period
permitted by order of the SEC for the protection of investors.

                           INDEPENDENT ACCOUNTANTS

    Coopers & Lybrand L.L.P., One Post Office Square, Boston,  Massachusetts are
the independent  accountants of the Fund,  providing audit services,  tax return
preparation,  and assistance and consultation with respect to the preparation of
filings with the Securities and Exchange Commission. Coopers & Lybrand Chartered
Accountants, Toronto, Canada, are the independent
accountants of the Portfolio.

   
    For the financial  statements of the Fund and the Portfolio,  see "Financial
Statements" in Part II of this Statement of Additional Information.
    

<PAGE>
                     STATEMENT OF ADDITIONAL INFORMATION

                                   PART II

   
    This Part II provides  information about EV CLASSIC  GOVERNMENT  OBLIGATIONS
FUND. On September 27, 1993, the Fund became a series of the Trust.
    

                              FEES AND EXPENSES
   
DISTRIBUTION PLAN
    For the  fiscal  year  ended  December  31,  1994,  the Fund  accrued  sales
commissions under the Plan aggregating  $365,704,  of which $361,009 was paid to
the  Principal  Underwriter.  The Principal  Underwriter  paid $360,374 as sales
commissions  to  Authorized  Firms and the balance was retained by the Principal
Underwriter.  As at December 31, 1994, the  outstanding  Uncovered  Distribution
Charges of the  Principal  Underwriter  calculated  under the Plan  amounted  to
approximately  $5,572,000  (which amount was  equivalent to 14.07% of the Fund's
net assets on such day).  For the fiscal year ended  December 31, 1994, the Fund
accrued service fees under the Plan aggregating  $121,154, of which $119,640 was
paid to the Principal  Underwriter.  The Principal  Underwriter paid $119,442 as
service fee  payments to  Authorized  Firms and the balance was  retained by the
Principal Underwriter.

PRINCIPAL UNDERWRITER
    For the fiscal year ended  December  31, 1994,  the Fund paid the  Principal
Underwriter  $2,025  for  repurchase   transactions  handled  by  the  Principal
Underwriter (being $2.50 for each such transaction).
    

CUSTODIAN
    For the fiscal year ended December 31, 1994, the Fund paid IBT $11,984.

   
<TABLE>
TRUSTEES
    The fees and  expenses of those  Trustees of the Trust and of the  Portfolio
who are not members of the Eaton Vance organization (the noninterested Trustees)
are paid by the Fund (and the  other  series of the  Trust)  and the  Portfolio,
respectively.  (The  Trustees of the Trust and the  Portfolio who are members of
the  Eaton  Vance  organization  receive  no  compensation  from the Fund or the
Portfolio.)  During the fiscal year ended December 31, 1994,  the  noninterested
Trustees of the Trust and the  Portfolio  earned the following  compensation  in
their capacities as Trustees from the Fund, the Portfolio and the other funds in
the Eaton Vance fund complex<F1>:

<CAPTION>
                                     AGGREGATE               AGGREGATE               RETIREMENT          TOTAL COMPENSATION
                                    COMPENSATION            COMPENSATION          BENEFIT ACCRUED          FROM TRUST AND
  NAME                               FROM FUND             FROM PORTFOLIO        FROM FUND COMPLEX          FUND COMPLEX
  ----                              ------------           --------------        -----------------         --------------
<S>                                 <C>                    <C>                   <C>                     <C>     
  Donald R. Dwight                      $295                   $4,119<F2>              $8,750                 $135,000
  Samuel L. Hayes, III                   287                    4,079<F3>               8,865                  142,500
  Norton H. Reamer                       276                    4,002                  --0--                   135,000
  John L. Thorndike                      284                    4,140                  --0--                   140,000
  Jack L. Treynor                        303                    4,247                  --0--                   140,000
<FN>
<F1> The  Eaton  Vance  fund  complex  consists  of  201  registered  investment
     companies or series thereof.
<F2> Includes $331 of deferred compensation.
<F3> Includes $334 of deferred compensation.
</TABLE>
    
                            PRINCIPAL UNDERWRITER

   
    Under the Distribution Agreement the Principal Underwriter acts as principal
in selling shares of the Fund. The expenses of printing  copies of  prospectuses
used to offer shares to financial  service  firms or investors and other selling
literature and of advertising  is borne by the Principal  Underwriter.  The fees
and expenses of qualifying and registering and  maintaining  qualifications  and
registrations of the Fund and its shares under Federal and state securities laws
is borne by the Fund.  In  addition,  the Fund makes  payments to the  Principal
Underwriter pursuant to its Distribution Plan as described in the Fund's current
prospectus;  the  provisions  of the Fund's  Distribution  Plan relating to such
payments are included in the Distribution Agreement.  The Distribution Agreement
is renewable annually by the Trust's Board of Trustees  (including a majority of
its Trustees who are not interested  persons of the Trust and who have no direct
or indirect financial interest in the operation of the Fund's  Distribution Plan
or the Distribution  Agreement),  may be terminated on sixty days' notice either
by such Trustees or by vote of a majority of the outstanding  voting  securities
of the  Fund  or on six  months'  notice  by the  Principal  Underwriter  and is
automatically terminated upon assignment.  The Principal Underwriter distributes
Fund shares on a "best efforts" basis under which it is required to take and pay
for only such shares as may be sold.

    The Fund has  authorized  the Principal  Underwriter  to act as its agent in
repurchasing shares at the rate of $2.50 for each repurchase transaction handled
by the Principal  Underwriter.  The  Principal  Underwriter  estimates  that the
expenses  incurred by it in acting as repurchase  agent for the Fund will exceed
the amounts  paid  therefor by the Fund.  For the amount paid by the Fund to the
Principal Underwriter for acting as repurchase agent, see "Fees and Expenses" in
this Part II.
    
                              DISTRIBUTION PLAN

    The  Distribution  Plan ("the Plan") is described in the  Prospectus  and is
designed to meet the requirements of Rule 12b-1 under the 1940 Act and the sales
charge rule of the National  Association of Securities Dealers,  Inc. (the "NASD
Rule").  The purpose of the Plan is to compensate the Principal  Underwriter for
its  distribution  services  and  facilities  provided to the Fund by paying the
Principal  Underwriter  sales  commissions  and a separate  distribution  fee in
connection with sales of Fund shares.  The following  supplements the discussion
of the Plan contained in the Fund's Prospectus.

   
    The amount  payable to the  Principal  Underwriter  pursuant  to the Plan as
sales commissions and distribution fees with respect to each day will be accrued
on such day as a liability  of the Fund and will  accordingly  reduce the Fund's
net  assets  upon  such  accrual,  all in  accordance  with  generally  accepted
accounting  principles.  The  amount  payable on each day is limited to 1/365 of
.75% of the Fund's  net  assets on such day.  The level of the Fund's net assets
changes  each day and depends upon the amount of sales and  redemptions  of Fund
shares,  the changes in the value of the investments held by the Portfolio,  the
expenses of the Fund and the Portfolio accrued and allocated to the Fund on such
day, income on portfolio  investments of the Portfolio  accrued and allocated to
the Fund on such day,  and any  dividends  and  distributions  declared  on Fund
shares.  The Fund does not accrue possible future payments as a liability of the
Fund or reduce the Fund's current net assets in respect of unknown amounts which
may  become  payable  under the Plan in the future  because  the  standards  for
accrual of a liability under such accounting principles have not been satisfied.

    The Plan provides that the Fund will receive all  contingent  deferred sales
charges and will make no payments to the Principal Underwriter in respect of any
day on which  there are no  outstanding  Uncovered  Distribution  Charges of the
Principal  Underwriter.  Contingent  deferred sales charges and accrued  amounts
will be paid by the  Fund to the  Principal  Underwriter  whenever  there  exist
Uncovered Distribution Charges under the Fund's Plan.

    Periods with a high level of sales of Fund shares accompanied by a low level
of early  redemptions  of Fund shares  resulting in the imposition of contingent
deferred  sales  charges  will tend to increase the time during which there will
exist Uncovered Distribution Charges of the Principal  Underwriter.  Conversely,
periods with a low level of sales of Fund shares  accompanied by a high level of
early  redemptions  of Fund shares  resulting in the  imposition  of  contingent
deferred  sales  charges  will tend to reduce the time  during  which there will
exist Uncovered Distribution Charges of the Principal Underwriter.

    In  calculating  daily  the  amount  of  Uncovered   Distribution   Charges,
distribution  charges will include the aggregate amount of sales commissions and
distribution   fees   theretofore  paid  plus  the  aggregate  amount  of  sales
commissions and distribution fees which the Principal Underwriter is entitled to
be paid under the Plan since its inception. Payments theretofore paid or payable
under the Plan by the Fund to the Principal  Underwriter and contingent deferred
sales charges  theretofore paid or payable to the Principal  Underwriter will be
subtracted from such distribution  charges; if the result of such subtraction is
positive,  a distribution  fee (computed at 1% over the prime rate then reported
in The Wall Street  Journal) will be computed on such amount and added  thereto,
with  the  resulting  sum  constituting  the  amount  of  outstanding  Uncovered
Distribution  Charges  with  respect  to such day.  The  amount  of  outstanding
Uncovered  Distribution Charges of the Principal  Underwriter  calculated on any
day does not constitute a liability recorded on the financial  statements of the
Fund.

    The amount of Uncovered Distribution Charges of the Principal Underwriter at
any particular time depends upon various changing  factors,  including the level
and timing of sales of Fund shares, the nature of such sales (i.e., whether they
result from  exchange  transactions,  reinvestments  or from cash sales  through
Authorized Firms), the level and timing of redemptions of Fund shares upon which
a  contingent  deferred  sales  charge will be imposed,  the level and timing of
redemptions  of Fund shares upon which no contingent  deferred sales charge will
be imposed (including  redemptions involving exchanges of Fund shares for shares
of another  fund in the Eaton Vance  Classic  Group of Funds  which  result in a
reduction of Uncovered  Distribution  Charges),  changes in the level of the net
assets of the Fund, and changes in the interest rate used in the  calculation of
the distribution fee under the Plan. (For shares sold prior to January 30, 1995,
Plan  payments are as follows:  the  Principal  Underwriter  pays monthly  sales
commissions  and  service  fee  payments  to  Authorized   Firms  equivalent  to
approximately .75% and .25%, respectively,  annualized, of the assets maintained
in the Fund by their  customers  beginning at the time of sale. No payments were
made at the time of sale and there is no contingent deferred sales charge.)

    As currently  implemented by the Trustees,  the Plan authorizes  payments of
sales  commissions,   distribution  fees  and  service  fees  to  the  Principal
Underwriter  which may be  equivalent,  on an aggregate  basis during any fiscal
year of the Fund,  to 1% of the Fund's  average  daily net assets for such year.
For the sales  commission  and  service  fee  payments  made by the Fund and the
outstanding  Uncovered  Distribution Charges of the Principal  Underwriter,  see
"Fees and Expenses -- Distribution Plan" in this Part II. The Fund believes that
the combined rate of all these  payments may be higher than the rate of payments
made under distribution plans adopted by other investment  companies pursuant to
Rule 12b-1. Although the Principal Underwriter will use its own funds (which may
be borrowed from banks) to pay sales commissions and service fees at the time of
sale, it is anticipated that the Eaton Vance  organization will profit by reason
of the operation of the Plan through an increase in the Fund's  assets  (thereby
increasing the advisory fee payable to BMR by the Portfolio) resulting from sale
of Fund  shares and  through  the  amounts  paid to the  Principal  Underwriter,
including  contingent  deferred sales  charges,  pursuant to the Plan. The Eaton
Vance organization may be considered to have realized a profit under the Plan if
at any point in time the aggregate amounts theretofore received by the Principal
Underwriter pursuant to the Plan and from contingent deferred sales charges have
exceeded  the  total  expenses  theretofore  incurred  by such  organization  in
distributing shares of the Fund. Total expenses for this purpose will include an
allocable  portion of the  overhead  costs of such  organization  and its branch
offices,   which  costs  will  include  without   limitation   leasing  expense,
depreciation  of building and equipment,  utilities,  communication  and postage
expense, compensation and benefits of personnel, travel and promotional expense,
stationery  and supplies,  literature  and sales aids,  interest  expense,  data
processing  fees,  consulting and temporary help costs,  insurance,  taxes other
than income taxes, legal and auditing expense and other  miscellaneous  overhead
items.  Overhead is calculated and allocated for such purpose by the Eaton Vance
organization in a manner deemed equitable to the Fund.

    The  provisions  of the Plan relating to payments of sales  commissions  and
distribution  fees  to  the  Principal  Underwriter  are  also  included  in the
Distribution Agreement between the Trust on behalf of the Fund and the Principal
Underwriter.  Pursuant to Rule 12b-1,  the Plan has been  approved by the Fund's
initial  sole  shareholder  (Eaton  Vance) and by the Board of  Trustees  of the
Trust,  including the Rule 12b-1 Trustees.  The Plan continues in effect through
and  including  April 28,  1996,  and  shall  continue  in  effect  indefinitely
thereafter for so long as such  continuance is approved at least annually by the
vote of both a majority of (i) the Trustees of the Trust who are not  interested
persons of the Trust and who have no direct or  indirect  financial  interest in
the operation of the Plan or any agreements related to the Plan (the "Rule 12b-1
Trustees")  and (ii) all of the Trustees  then in office,  and the  Distribution
Agreement contains a similar provision.  The Plan and Distribution Agreement may
be terminated at any time by vote of a majority of the Rule 12b-1 Trustees or by
a vote of a majority of the outstanding voting securities of the Fund. Under the
Plan,  the  President  or a Vice  President  of the Trust  shall  provide to the
Trustees for their review,  and the Trustees shall review at least quarterly,  a
written report of the amount  expended under the Plan and the purposes for which
such expenditures were made. The Plan may not be amended to increase  materially
the payments described therein without approval of the shareholders of the Fund,
and all material amendments of the Plan must also be approved by the Trustees as
required  by Rule 12b-1.  So long as the Plan is in effect,  the  selection  and
nomination  of  Trustees  who are not  interested  persons of the Trust shall be
committed to the discretion of the Trustees who are not such interested persons.
    

    The  Trustees  believe  that the Plan  will be a  significant  factor in the
expected  growth of the Fund's assets,  and will result in increased  investment
flexibility  and  advantages  which will benefit the Fund and its  shareholders.
Payments  for sales  commissions  and  distribution  fees made to the  Principal
Underwriter  under the Plan will  compensate the Principal  Underwriter  for its
services and expenses in distributing  shares of the Fund.  Service fee payments
made to the Principal  Underwriter  and Authorized  Firms under the Plan provide
incentives  to  provide  continuing  personal  services  to  investors  and  the
maintenance of shareholder  accounts.  By providing  incentives to the Principal
Underwriter  and  Authorized  Firms,  the  Plan is  expected  to  result  in the
maintenance of, and possible future growth in, the assets of the Fund.  Based on
the foregoing and other relevant  factors,  the Trustees have determined that in
their judgment there is a reasonable  likelihood  that the Plan will benefit the
Fund and its shareholders.

                           PERFORMANCE INFORMATION

   
    The  table  below   indicates  the  total  return   (capital   changes  plus
reinvestment of all distributions) on a hypothetical investment of $1,000 in the
Fund  covering the life of the Fund from  November 1, 1993 through  December 31,
1994 and the one-year period ended December 31, 1994.

<TABLE>
                        VALUE OF A $1,000 INVESTMENT<F2>
    
<CAPTION>
   
                                                                             VALUE OF                    TOTAL RETURN
                                    INVESTMENT          AMOUNT OF           INVESTMENT       ------------------------------------
INVESTMENT PERIOD                      DATE             INVESTMENT         ON 12/31/94          CUMULATIVE          ANNUALIZED
- -----------                           ------              ------              ------             -------              ------
<S>                                 <C>                 <C>                <C>                  <C>                 <C>  
Life of the Fund<F1>                 11/01/93             $1,000             $977.90              -2.21%              -1.90%
1 Year Ended 12/31/94                12/31/93              1,000             $974.56              -2.54%              -2.54%

<CAPTION>
                             PERCENTAGE CHANGES<F2>
                    NOVEMBER 1, 1993 -- DECEMBER 31, 1994
    
                           NET ASSET VALUE TO NET ASSET VALUE
                           WITH ALL DISTRIBUTIONS REINVESTE
                      ---------------------------------------------------------
FISCAL YEAR ENDED      ANNUAL             CUMULATIVE              AVERAGE ANNUAL
- -----------------      ------             ----------              --------------
<S>                    <C>                <C>                     <C>
  12/31/93<F1>           --                  0.34%                      --
  12/31/94             -2.54%               -2.21%                    -1.90%

    Past performance is not indicative of future results. Investment return
and principal value will fluctuate and shares, when redeemed,  may be worth more
or less than their original cost.
<FN>
- ----------
<F1> Investment operations began on November 1, 1993.
<F2> If the contingent  deferred sales charge  applicable to shares purchased on
     or after January 30, 1995 had been  imposed,  the Fund would have had lower
     returns.
</TABLE>
   
    For the thirty-day period ended December 31, 1994, the yield of the Fund was
4.70%. The Fund's  distribution  rate (calculated on December 31, 1994 and based
on the Fund's monthly distribution paid on December 22, 1994) was 6.93%, and the
Fund's effective distribution rate (calculated on the same date and based on the
same monthly distribution) was 7.16%.
    

    From time to time,  advertisements  and other material  furnished to present
and   prospective   shareholders   may  include   information,   charts   and/or
illustrations of the Fund's net asset value per share history.

                          MONTH -- NET ASSET VALUES
               INCEPTION DATE: NOVEMBER 1, 1993 -- PRICE $10.00

   
                                              1993       1994       1995
                                               ---        ---        ---
  January                                      n/a       9.96       9.06
  February                                     n/a       9.81       9.18
  March                                        n/a       9.61       9.18
  April                                        n/a       9.45
  May                                          n/a       9.38
  June                                         n/a       9.31
  July                                         n/a       9.35
  August                                       n/a       9.32
  September                                    n/a       9.16
  October                                      n/a       9.11
  November                                    9.97       9.00
  December                                    9.94       8.98
    

                            ADDITIONAL TAX MATTERS

    The Fund  qualified  as a RIC  under  the Code for its  taxable  year  ended
December 31, 1994 (see Notes to Financial Statements).

             CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES

   
    As at March 31, 1995,  the  Trustees and officers of the Trust,  as a group,
owned in the aggregate less than 1% of the outstanding shares of the Fund. As at
March 31, 1995, Merrill Lynch, Pierce,  Fenner & Smith, Inc., New Brunswick,  NJ
was the record owner of approximately 29.23% of the outstanding shares, which it
held on behalf of its  customers who are the  beneficial  owners of such shares,
and as to which it had voting  power under  certain  limited  circumstances.  In
addition,  on such date, Chicago Public Schools Dept. of Treasury Fund, Chicago,
IL  was  the  record  and  beneficial  owner  of  approximately  11.28%  of  the
outstanding shares. To the Trust's knowledge, no other person owned of record or
beneficially 5% or more of the Fund's outstanding shares on such date.
    
<PAGE>
                             FINANCIAL STATEMENTS

    Registrant  incorporates by reference the audited financial  information for
the Fund and the Portfolio  contained in the Fund's  shareholder  report for the
fiscal year ended December 31, 1994 as previously filed  electronically with the
Securities and Exchange Commission (Accession Number: 0000950156-95-000085).

<PAGE>
                             INVESTMENT ADVISER OF
                        GOVERNMENT OBLIGATIONS PORTFOLIO
                         Boston Management and Research
                               24 Federal Street
                                Boston, MA 02110

                                ADMINISTRATOR OF
                                   EV CLASSIC
                          GOVERNMENT OBLIGATIONS FUND
                             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
                            Coopers & Lybrand L.L.P.
                             One Post Office Square
                                Boston, MA 02109


                                   EV CLASSIC
                          GOVERNMENT OBLIGATIONS FUND
                               24 FEDERAL STREET
                                BOSTON, MA 02110




                                   EV Classic
                             Government Obligations
                                      Fund

                                  Statement of
                                   Additional
                                  Information

                                  May 1, 1995

<PAGE>

                     STATEMENT OF ADDITIONAL INFORMATION

                                   PART II

   
    This Part II provides  information about EV MARATHON GOVERNMENT  OBLIGATIONS
FUND. On September 27, 1993, the Fund became a series of the Trust.

                              FEES AND EXPENSES
DISTRIBUTION PLAN
    For the fiscal year ended December 31, 1994, the Fund paid sales commissions
under the Plan  aggregating  $472,478,  which  amount was used by the  Principal
Underwriter to partially defray sales  commissions  aggregating  $2,704,473 paid
during such period by the Principal  Underwriter to Authorized Firms on sales of
Fund shares.  During such period,  contingent deferred sales charges aggregating
approximately  $577,800 were imposed on early redeeming shareholders and paid to
the Principal Underwriter, which amount was used by the Principal Underwriter to
partially  defray  such  sales  commissions.   As  at  December  31,  1994,  the
outstanding   Uncovered   Distribution  Charges  of  the  Principal  Underwriter
calculated under the Plan amounted to approximately $3,980,000 (which amount was
equivalent  to 4.6% of the Fund's net assets on such day).  For the fiscal  year
ended  December  31,  1994,  the  Fund  accrued  service  fees  under  the  Plan
aggregating  $5,588,  but did not make any service fee payments to the Principal
Underwriter.

PRINCIPAL UNDERWRITER
    For the fiscal year ended  December  31, 1994,  the Fund paid the  Principal
Underwriter  $1,307.50  for  repurchase  transactions  handled by the  Principal
Underwriter (being $2.50 for each such transaction).

CUSTODIAN
    For the fiscal year ended December 31, 1994, the Fund paid IBT $12,161.

<TABLE>
TRUSTEES
    The fees and  expenses of those  Trustees of the Trust and of the  Portfolio
who are not members of the Eaton Vance organization (the noninterested Trustees)
are paid by the Fund (and the  other  series of the  Trust)  and the  Portfolio,
respectively.  (The  Trustees of the Trust and the  Portfolio who are members of
the  Eaton  Vance  organization  receive  no  compensation  from the Fund or the
Portfolio.)  During the fiscal year ended December 31, 1994,  the  noninterested
Trustees of the Trust and the  Portfolio  earned the following  compensation  in
their capacities as Trustees from the Fund, the Portfolio and the other funds in
the Eaton Vance fund complex<F1>:

<CAPTION>
                                     AGGREGATE               AGGREGATE               RETIREMENT          TOTAL COMPENSATION
                                    COMPENSATION            COMPENSATION          BENEFIT ACCRUED          FROM TRUST AND
  NAME                               FROM FUND             FROM PORTFOLIO        FROM FUND COMPLEX          FUND COMPLEX
  ----                              ------------           --------------        -----------------         --------------
  <S>                               <C>                    <C>                   <C>                     <C>     
  Donald R. Dwight                      $216                   $4,119<F2>              $8,750                 $135,000
  Samuel L. Hayes, III                   208                    4,079<F3>               8,865                  142,500
  Norton H. Reamer                       203                    4,002                  --0--                   135,000
  John L. Thorndike                      207                    4,140                  --0--                   140,000
  Jack L. Treynor                        224                    4,247                  --0--                   140,000
    
<FN>
<F1> The  Eaton  Vance  fund  complex  consists  of  201  registered  investment
     companies or series thereof.
<F2> Includes $331 of deferred compensation.
<F3> Includes $334 of deferred compensation.
</TABLE>

                            PRINCIPAL UNDERWRITER

   
    Under the Distribution Agreement the Principal Underwriter acts as principal
in selling shares of the Fund. The expenses of printing  copies of  prospectuses
used to offer shares to financial  service  firms or investors and other selling
literature and of advertising  is borne by the Principal  Underwriter.  The fees
and expenses of qualifying and registering and  maintaining  qualifications  and
registrations of the Fund and its shares under Federal and state securities laws
is borne by the Fund.  In  addition,  the Fund makes  payments to the  Principal
Underwriter pursuant to its Distribution Plan as described in the Fund's current
Prospectus;  the  provisions  of the Fund's  Distribution  Plan relating to such
payments are included in the Distribution Agreement.  The Distribution Agreement
is renewable annually by the Trust's Board of Trustees  (including a majority of
its Trustees who are not interested  persons of the Trust and who have no direct
or indirect financial interest in the operation of the Fund's  Distribution Plan
or the Distribution  Agreement),  may be terminated on sixty days' notice either
by such Trustees or by vote of a majority of the outstanding  voting  securities
of the  Fund  or on six  months'  notice  by the  Principal  Underwriter  and is
automatically terminated upon assignment.  The Principal Underwriter distributes
Fund shares on a "best efforts" basis under which it is required to take and pay
for only such shares as may be sold.

    The Fund has  authorized  the Principal  Underwriter  to act as its agent in
repurchasing shares at the rate of $2.50 for each repurchase transaction handled
by the Principal  Underwriter.  The  Principal  Underwriter  estimates  that the
expenses  incurred by it in acting as repurchase  agent for the Fund will exceed
the amounts  paid  therefor by the Fund.  For the amount paid by the Fund to the
Principal Underwriter for acting as repurchase agent, see "Fees and Expenses" in
this Part II.
    

                              DISTRIBUTION PLAN

    The  Distribution  Plan ("the Plan") is described in the  Prospectus  and is
designed to meet the requirements of Rule 12b-1 under the 1940 Act and the sales
charge rule of the National  Association of Securities Dealers,  Inc. (the "NASD
Rule").  The purpose of the Plan is to compensate the Principal  Underwriter for
its  distribution  services  and  facilities  provided to the Fund by paying the
Principal  Underwriter  sales  commissions  and a separate  distribution  fee in
connection with sales of Fund shares.  The following  supplements the discussion
of the Plan contained in the Fund's Prospectus.

   
    The amount  payable to the  Principal  Underwriter  pursuant  to the Plan as
sales commissions and distribution fees with respect to each day will be accrued
on such day as a liability  of the Fund and will  accordingly  reduce the Fund's
net  assets  upon  such  accrual,  all in  accordance  with  generally  accepted
accounting  principles.  The  amount  payable on each day is limited to 1/365 of
.75% of the Fund's  net  assets on such day.  The level of the Fund's net assets
changes  each day and depends upon the amount of sales and  redemptions  of Fund
shares,  the changes in the value of the investments held by the Portfolio,  the
expenses of the Fund and the Portfolio accrued and allocated to the Fund on such
day, income on portfolio  investments of the Portfolio  accrued and allocated to
the Fund on such day,  and any  dividends  and  distributions  declared  on Fund
shares.  The Fund does not accrue possible future payments as a liability of the
Fund or reduce the Fund's current net assets in respect of unknown amounts which
may  become  payable  under the Plan in the future  because  the  standards  for
accrual of a liability under such accounting principles have not been satisfied.

    The Plan provides that the Fund will receive all  contingent  deferred sales
charges and will make no payments to the Principal Underwriter in respect of any
day on which  there are no  outstanding  Uncovered  Distribution  Charges of the
Principal  Underwriter.  Contingent  deferred sales charges and accrued  amounts
will be paid by the  Fund to the  Principal  Underwriter  whenever  there  exist
Uncovered Distribution Charges under the Fund's Plan.

    Periods with a high level of sales of Fund shares accompanied by a low level
of early  redemptions  of Fund shares  resulting in the imposition of contingent
deferred  sales  charges  will tend to increase the time during which there will
exist Uncovered Distribution Charges of the Principal  Underwriter.  Conversely,
periods with a low level of sales of Fund shares  accompanied by a high level of
early  redemptions  of Fund shares  resulting in the  imposition  of  contingent
deferred  sales  charges  will tend to reduce the time  during  which there will
exist Uncovered Distribution Charges of the Principal Underwriter.

    In  calculating  daily  the  amount  of  Uncovered   Distribution   Charges,
distribution  charges will include the aggregate amount of sales commissions and
distribution   fees   theretofore  paid  plus  the  aggregate  amount  of  sales
commissions and distribution fees which the Principal Underwriter is entitled to
be paid under the Plan since its inception. Payments theretofore paid or payable
under the Plan by the Fund to the Principal  Underwriter and contingent deferred
sales charges  theretofore paid or payable to the Principal  Underwriter will be
subtracted from such distribution  charges; if the result of such subtraction is
positive,  a distribution  fee (computed at 1% over the prime rate then reported
in The Wall Street  Journal) will be computed on such amount and added  thereto,
with  the  resulting  sum  constituting  the  amount  of  outstanding  Uncovered
Distribution  Charges  with  respect  to such day.  The  amount  of  outstanding
Uncovered  Distribution Charges of the Principal  Underwriter  calculated on any
day does not constitute a liability recorded on the financial  statements of the
Fund.

    The amount of Uncovered Distribution Charges of the Principal Underwriter at
any particular time depends upon various changing  factors,  including the level
and timing of sales of Fund shares, the nature of such sales (i.e., whether they
result from  exchange  transactions,  reinvestments  or from cash sales  through
Authorized Firms), the level and timing of redemptions of Fund shares upon which
a  contingent  deferred  sales  charge will be imposed,  the level and timing of
redemptions  of Fund shares upon which no contingent  deferred sales charge will
be imposed (including  redemptions involving exchanges of Fund shares for shares
of another  fund in the Eaton Vance  Marathon  Group of Funds which  result in a
reduction of uncovered  distribution  charges),  changes in the level of the net
assets of the Fund, and changes in the interest rate used in the  calculation of
the distribution fee under the Plan.

    As currently  implemented by the Trustees,  the Plan authorizes  payments of
sales commissions and distribution fees to the Principal Underwriter and service
fees to the Principal  Underwriter and Authorized Firms which may be equivalent,
on an aggregate  basis  during any fiscal year of the Fund,  to 1% of the Fund's
average daily net assets for such year.  For the sales  commissions  and service
fee payments made by the Fund and the outstanding Uncovered Distribution Charges
of the Principal  Underwriter,  see "Fees and Expenses -- Distribution  Plan" in
this Part II. The Fund believes that the combined rate of all these payments may
be higher than the rate of payments  made under  distribution  plans  adopted by
other investment  companies  pursuant to Rule 12b- 1. It is anticipated that the
Eaton  Vance  organization  will profit by reason of the  operation  of the Plan
through an increase in the Fund's assets  (thereby  increasing  the advisory fee
payable to BMR by the Portfolio)  resulting from sale of Fund shares and through
the amounts paid to the Principal  Underwriter,  including  contingent  deferred
sales  charges,  pursuant  to the Plan.  The  Eaton  Vance  organization  may be
considered  to have realized a profit under the Plan if at any point in time the
aggregate amounts theretofore received by the Principal  Underwriter pursuant to
the Plan and from  contingent  deferred  sales  charges have  exceeded the total
expenses theretofore incurred by such organization in distributing shares of the
Fund.  Total expenses for this purpose will include an allocable  portion of the
overhead costs of such  organization  and its branch  offices,  which costs will
include  without  limitation  leasing  expense,  depreciation  of  building  and
equipment,  utilities,  communication  and  postage  expense,  compensation  and
benefits of personnel,  travel and promotional expense, stationery and supplies,
literature and sales aids,  interest expense,  data processing fees,  consulting
and temporary help costs,  insurance,  taxes other than income taxes,  legal and
auditing expense and other miscellaneous  overhead items. Overhead is calculated
and  allocated  for such  purpose by the Eaton  Vance  organization  in a manner
deemed equitable to the Fund.

    The  provisions  of the Plan relating to payments of sales  commissions  and
distribution  fees  to  the  Principal  Underwriter  are  also  included  in the
Distribution Agreement between the Trust on behalf of the Fund and the Principal
Underwriter.  Pursuant to Rule 12b-1,  the Plan has been  approved by the Fund's
initial  sole  shareholder  (Eaton  Vance) and by the Board of  Trustees  of the
Trust,  including the Rule 12b-1 Trustees.  The Plan continues in effect through
and  including  April 28,  1996,  and  shall  continue  in  effect  indefinitely
thereafter for so long as such  continuance is approved at least annually by the
vote of both a majority of (i) the Trustees of the Trust who are not  interested
persons of the Trust and who have no direct or  indirect  financial  interest in
the operation of the Plan or any agreements related to the Plan (the "Rule 12b-1
Trustees")  and (ii) all of the Trustees  then in office,  and the  Distribution
Agreement contains a similar provision.  The Plan and Distribution Agreement may
be terminated at any time by vote of a majority of the Rule 12b-1 Trustees or by
a vote of a majority of the outstanding voting securities of the Fund. Under the
Plan,  the  President  or a Vice  President  of the Trust  shall  provide to the
Trustees for their review,  and the Trustees shall review at least quarterly,  a
written report of the amount  expended under the Plan and the purposes for which
such expenditures were made. The Plan may not be amended to increase  materially
the payments described therein without approval of the shareholders of the Fund,
and all material amendments of the Plan must also be approved by the Trustees as
required  by Rule 12b-1.  So long as the Plan is in effect,  the  selection  and
nomination  of  Trustees  who are not  interested  persons of the Trust shall be
committed to the discretion of the Trustees who are not such interested persons.
    

    The  Trustees  believe  that the Plan  will be a  significant  factor in the
expected  growth of the Fund's assets,  and will result in increased  investment
flexibility  and  advantages  which will benefit the Fund and its  shareholders.
Payments  for sales  commissions  and  distribution  fees made to the  Principal
Underwriter  under the Plan will  compensate the Principal  Underwriter  for its
services and expenses in distributing  shares of the Fund.  Service fee payments
made to the Principal  Underwriter  and Authorized  Firms under the Plan provide
incentives  to  provide  continuing  personal  services  to  investors  and  the
maintenance of shareholder  accounts.  By providing  incentives to the Principal
Underwriter  and  Authorized  Firms,  the  Plan is  expected  to  result  in the
maintenance of, and possible future growth in, the assets of the Fund.  Based on
the foregoing and other relevant  factors,  the Trustees have determined that in
their judgment there is a reasonable  likelihood  that the Plan will benefit the
Fund and its shareholders.

   
                           PERFORMANCE INFORMATION

    The  table  below   indicates  the  total  return   (capital   changes  plus
reinvestment of all distributions) on a hypothetical investment of $1,000 in the
Fund covering the life of the Fund from November 1, 1993,  through  December 31,
1994, and the one-year period ended December 31, 1994.

                         VALUE OF A $1,000 INVESTMENT

<TABLE>
<CAPTION>
                                             VALUE OF         VALUE OF
                                            INVESTMENT       INVESTMENT
                                              BEFORE           AFTER
                                           DEDUCTING THE   DEDUCTING THE      TOTAL RETURN BEFORE           TOTAL RETURN AFTER
                                             CONTINGENT      CONTINGENT       DEDUCTING THE CONTINGENT    DEDUCTING THE CONTINGENT 
                                              DEFERRED        DEFERRED         DEFERRED SALES CHARGE       DEFERRED SALES CHARGE<F2>
INVESTMENT         INVESTMENT   AMOUNT OF    SALES CHARGE   SALES CHARGE<F2> ------------------------   --------------------------
 PERIOD              DATE      INVESTMENT    ON 12/31/94     ON 12/31/94     CUMULATIVE     ANNUALIZED     CUMULATIVE    ANNUALIZED
- ---------          ---------   ----------   -------------   ------------     ----------     ----------     ----------    ----------
<S>               <C>          <C>         <C>             <C>               <C>            <C>          <C>             <C>  
Life of Fund<F1>  11/01/93      $1,000        $981.56         $936.61         -1.84%         -1.59%         -6.34%        -5.47%
1 Year Ended
12/31/94          12/31/93      $1,000        $979.10         $933.83         -2.09%         -2.09%         -6.62%        -6.62%

<CAPTION>
                                                     PERCENTAGE CHANGES
                                               NOVEMBER 1, 1993 -- DECEMBER 31, 1994

                                    NET ASSET VALUE TO NET ASSET VALUE                    NET ASSET VALUE TO NET ASSET VALUE
                                 BEFORE DEDUCTING THE CONTINGENT DEFERRED              AFTER DEDUCTING THE CONTINGENT DEFERRED
FISCAL                        SALES CHARGE WITH ALL DISTRIBUTIONS REINVESTED      SALES CHARGE<F2> WITH ALL DISTRIBUTIONS REINVESTED
YEAR                          ----------------------------------------------      ------------------------------------------------
ENDED                          ANNUAL         CUMULATIVE        AVERAGE ANNUAL       ANNUAL         CUMULATIVE      AVERAGE ANNUAL
- -----                          ------         ----------        --------------       ------         ----------      --------------
<C>                           <C>             <C>               <C>                <C>              <C>             <C>
12/31/93<F1>                     --              0.25%                --               --             -4.71%              --
12/31/94                       -2.09%           -1.84%              -1.59%           -6.62%           -6.34%            -5.47%
    

    Past performance is not indicative of future results. Investment return
and principal value will fluctuate and shares, when redeemed,  may be worth more
or less than their original cost.
<FN>
- ----------
<F1> Investment operations began on November 1, 1993.
<F2> No contingent  deferred  sales charge is imposed on shares  purchased  more
   
     than six  years  prior  to the  redemption,  shares  acquired  through  the
     reinvestment of distributions, or any appreciation in value of other shares
     in the  account,  and no such charge is imposed on exchanges of Fund shares
     for  shares of one or more  other  funds  listed  under  "The  Eaton  Vance
     Exchange Privilege" in the Prospectus.
</TABLE>

    For the thirty-day period ended December 31, 1994, the yield of the Fund was
5.14%. The Fund's  distribution  rate (calculated on December 31, 1994 and based
on the Fund's monthly distribution paid on December 22, 1994) was 7.23%, and the
Fund's effective distribution rate (calculated on the same date and based on the
same monthly distribution) was 7.48%.
    

    From time to time,  advertisements  and other material  furnished to present
and   prospective   shareholders   may  include   information,   charts   and/or
illustrations of the Fund's net asset value per share history.

                          MONTH -- NET ASSET VALUES
               INCEPTION DATE: NOVEMBER 1, 1993 -- PRICE $10.00

                                              1993       1994       1995
                                              ----       ----       ----
   
  January                                      n/a       9.96       9.07
  February                                     n/a       9.80       9.19
  March                                        n/a       9.60       9.19
  April                                        n/a       9.45
  May                                          n/a       9.37
  June                                         n/a       9.30
  July                                         n/a       9.34
  August                                       n/a       9.31
  September                                    n/a       9.16
  October                                      n/a       9.10
  November                                    9.96       9.01
  December                                    9.93       8.99
    

                            ADDITIONAL TAX MATTERS
   
    The Fund  qualified  as a RIC  under  the Code for its  taxable  year  ended
December 31, 1994 (see Notes to Financial Statements).
    

              CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES
   
     As at March 31, 1995,  the Trustees and officers of the Trust,  as a group,
owned in the aggregate less than 1% of the outstanding shares of the Fund. As at
March 31, 1995, Merrill Lynch, Pierce,  Fenner & Smith, Inc., New Brunswick,  NJ
was the record owner of approximately 14.23% of the outstanding shares, which it
held on behalf of its  customers who are the  beneficial  owners of such shares,
and as to which it had voting power under certain limited circumstances.  To the
Trust's knowledge, no other person owned of record or beneficially 5% or more of
the Fund's outstanding shares on such date.
    
<PAGE>
                             FINANCIAL STATEMENTS

    Registrant  incorporates by reference the audited financial  information for
the Fund and the Portfolio  contained in the Fund's  shareholder  report for the
fiscal year ended December 31, 1994 as previously filed  electronically with the
Securities and Exchange Commission (Accession Number: 0000950156-95-000118).

<PAGE>
INVESTMENT ADVISER OF 
GOVERNMENT OBLIGATIONS PORTFOLIO
Boston Management and Research
24 Federal Street
Boston, MA 02110

ADMINISTRATOR OF EV MARATHON 
GOVERNMENT OBLIGATIONS FUND
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
Coopers & Lybrand L.L.P.
One Post Office Square
Boston, MA  02109
    



EV MARATHON 
GOVERNMENT OBLIGATIONS FUND
24 FEDERAL STREET
BOSTON, MA 02110



[LOGO]

EV MARATHON
GOVERNMENT
OBLIGATIONS
FUND

STATEMENT OF
ADDITIONAL
INFORMATION
   
MAY 1, 1995
    
<PAGE>
   
                     STATEMENT OF ADDITIONAL INFORMATION
                                   PART II

    This  Part  II  provides   information   about  EV  TRADITIONAL   GOVERNMENT
OBLIGATIONS FUND. On February 1, 1991, the Fund became a series of the Trust and
redesignated  its name from Eaton  Vance  Government  Obligations  Fund to Eaton
Vance Traditional  Government  Obligations Fund. On September 27, 1993, the Fund
changed its name to EV Traditional Government Obligations Fund.

                              FEES AND EXPENSES
INVESTMENT ADVISER
    Prior  to the  close  of  business  on  October  27,  1993  (when  the  Fund
transferred  its assets to the  Portfolio  in  exchange  for an  interest in the
Portfolio),  the Fund retained  Eaton Vance as its investment  adviser.  For the
period  from  January 1, 1993,  to October 27,  1993,  the Fund paid Eaton Vance
advisory  fees of  $3,124,314  (equivalent  to .75%  (annualized)  of the Fund's
average  daily net assets for such period).  For the fiscal year ended  December
31, 1992, the Fund paid Eaton Vance advisory fees of $3,212,369.

PRINCIPAL UNDERWRITER
    For the fiscal year ended  December  31, 1994,  the Fund paid the  Principal
Underwriter $6,640 (being $2.50 for each repurchase  transaction  handled by the
Principal Underwriter).

    The total  sales  charges  for sales of shares of the Fund during the fiscal
years ended  December 31, 1994,  1993 and 1992,  were  $727,826,  $2,735,964 and
$6,599,616,   respectively,   of  which   $119,053,   $424,933   and   $601,912,
respectively,  was received by the Principal  Underwriter.  For the fiscal years
ended December 31, 1994,  1993 and 1992,  Authorized  Firms  received  $608,773,
$2,311,031 and $5,997,704, respectively, from the total sales charges.

SERVICE PLAN
    For the fiscal  year ended  December  31,  1994,  the Fund made  service fee
payments under the Plan to the Principal  Underwriter  aggregating  $926,094, of
which $909,806 was paid to Authorized  Firms and the balance was retained by the
Principal Underwriter.

CUSTODIAN
    During the fiscal year ended December 31, 1994, the Fund paid IBT $41,940.

BROKERAGE COMMISSIONS
    During the period from January 1, 1993, to October 27, 1993,  and the fiscal
year  ended  December  31,  1992,  the Fund  paid no  brokerage  commissions  on
portfolio security transactions.

<TABLE>
TRUSTEES
    The fees and  expenses of those  Trustees of the Trust and of the  Portfolio
who are not members of the Eaton Vance organization (the noninterested Trustees)
are paid by the Fund (and the  other  series of the  Trust)  and the  Portfolio,
respectively.  (The  Trustees of the Trust and the  Portfolio who are members of
the  Eaton  Vance  organization  receive  no  compensation  from the Fund or the
Portfolio.)  During the fiscal year ended December 31, 1994,  the  noninterested
Trustees of the Trust and the  Portfolio  earned the following  compensation  in
their capacities as Trustees from the Fund, the Portfolio and the other funds in
the Eaton Vance fund complex<F1>:
<CAPTION>
                                        AGGREGATE               AGGREGATE               RETIREMENT          TOTAL COMPENSATION
                                       COMPENSATION            COMPENSATION          BENEFIT ACCRUED          FROM TRUST AND
  NAME                                  FROM FUND             FROM PORTFOLIO        FROM FUND COMPLEX          FUND COMPLEX
  ----                                ------------            --------------        -----------------         --------------
  <S>                                 <C>                     <C>                   <C>                     <C>     
  Donald R. Dwight ..............        $  675                  $4,119<F2>              $8,750                 $135,000
  Samuel L. Hayes, III ..........           653                   4,079<F3>               8,865                  142,500
  Norton H. Reamer ..............           630                   4,002                  -- 0 --                 135,000
  John L. Thorndike .............           647                   4,140                  -- 0 --                 140,000
  Jack L. Treynor ...............           691                   4,247                  -- 0 --                 140,000
    
<FN>
- ----------
<F1> The  Eaton  Vance  fund  complex  consists  of  201  registered  investment
     companies or series thereof.
<F2> Includes $331 of deferred compensation.
<F3> Includes $334 of deferred compensation.
</TABLE>
   
                          SERVICES FOR ACCUMULATION

    The following services are voluntary, involve no extra charge other than the
sales charge included in the offering price,  and may be changed or discontinued
without penalty at any time.

    INTENDED QUANTITY INVESTMENT -- STATEMENT OF INTENTION. If it is anticipated
that $50,000 or more of Fund shares and shares of the other continuously offered
open-end funds listed under "The Eaton Vance Exchange  Privilege" in the current
Prospectus of the Fund will be purchased  within a 13-month  period, a Statement
of Intention should be signed so that shares may be obtained at the same reduced
sales charge as though the total quantity were invested in one lump sum.  Shares
held under Right of  Accumulation  (see  below) as of the date of the  Statement
will  be  included  toward  the  completion  of  the  Statement.  The  Statement
authorizes  the Transfer  Agent to hold in escrow  sufficient  shares (5% of the
dollar amount  specified in the Statement)  which can be redeemed to make up any
difference in sales charge on the amount  intended to be invested and the amount
actually invested. Execution of a Statement does not obligate the shareholder to
purchase or the Fund to sell the full amount  indicated  in the  Statement,  and
should the amount actually  purchased during the 13-month period be more or less
than that indicated on the Statement,  price adjustments will be made. For sales
charges  and  other  information  on  quantity  purchases,  see "How to Buy Fund
Shares" in the Fund's current  Prospectus.  Any investor  considering  signing a
Statement of Intention should read it carefully.

    RIGHT OF ACCUMULATION -- CUMULATIVE QUANTITY  DISCOUNT. The applicable sales
charge level for the purchase of Fund shares is  calculated by taking the dollar
amount of the current  purchase  and adding it to the value  (calculated  at the
maximum  current  offering  price) of the  shares  the  shareholder  owns in his
account(s)  in the Fund and in the other  continuously  offered  open-end  funds
listed under "The Eaton Vance Exchange  Privilege" in the current  Prospectus of
the Fund for which Eaton Vance acts as adviser or  administrator  at the time of
purchase.  The sales  charge on the shares being  purchased  will then be at the
rate applicable to the aggregate.  For example,  if the shareholder owned shares
valued at $30,000 in EV Traditional California Municipals Fund, and purchased an
additional  $20,000 of Fund shares,  the sales  charge for the $20,000  purchase
would be at the rate of 2.75% of the  offering  price  (2.83% of the net  amount
invested)  which is the rate applicable to single  transactions of $50,000.  For
sales charges on quantity purchases,  see "How to Buy Fund Shares" in the Fund's
current Prospectus. Shares purchased (i) by an individual, his or her spouse and
their children under the age of twenty-one,  and (ii) by a trustee,  guardian or
other fiduciary of a single trust estate or a single fiduciary account,  will be
combined for the purpose of determining  whether a purchase will qualify for the
Right of Accumulation and if qualifying, the applicable sales charge level.

    For any  such  discount  to be made  available,  at the time of  purchase  a
purchaser or his or her Authorized  Firm must provide Eaton Vance  Distributors,
Inc. (the  "Principal  Underwriter")  (in the case of a purchase made through an
Authorized  Firm) or the Transfer  Agent (in the case of an  investment  made by
mail) with sufficient information to permit verification that the purchase order
qualifies for the accumulation  privilege.  Corfirmation of the order is subject
to such  verification.  The Right of  Accumulation  privilege  may be amended or
terminated at any time as to purchases occurring thereafter.

                            PRINCIPAL UNDERWRITER

    Shares of the Fund may be  continuously  purchased  at the  public  offering
price through certain  Authorized Firms which have agreements with the Principal
Underwriter.  The Principal  Underwriter is a  wholly-owned  subsidiary of Eaton
Vance.

    The public offering price is the net asset value next computed after receipt
of the order,  plus,  where  applicable,  a variable  percentage  (sales charge)
depending upon the amount of purchase as indicated by the sales charge table set
forth in the Fund's current Prospectus (see "How to Buy Fund Shares").

    Such table is  applicable  to purchases of the Fund alone or in  combination
with purchases of the other funds offered by the Principal Underwriter,  made at
a single  time by (i) an  individual,  or an  individual,  his or her spouse and
their children under the age of twenty-one,  purchasing  shares for his or their
own  account;  and (ii) a trustee  or other  fiduciary  purchasing  shares for a
single trust estate or a single fiduciary account.

    The table is also  presently  applicable  to (1)  purchases  of Fund shares,
alone or in combination  with purchases of any of the other funds offered by the
Principal Underwriter through one dealer aggregating $50,000 or more made by any
of the persons  enumerated  above within a  thirteen-month  period starting with
first  purchase  pursuant  to a  written  Statement  of  Intention,  in the form
provided by the Principal  Underwriter,  which  includes  provisions for a price
adjustment  depending upon the amount actually  purchased  within such period (a
purchase not made pursuant to such  Statement may be included  thereunder if the
Statement is filed  within 90 days of such  purchase);  or (2)  purchases of the
Fund pursuant to the Right of  Accumulation  and declared as such at the time of
purchase.

    Subject to the  applicable  provisions  of the 1940 Act,  the Fund may issue
shares at net asset  value in the event that an  investment  company  (whether a
regulated or private investment company or a personal holding company) is merged
or consolidated with or acquired by the Fund.  Normally no sales charges will be
paid in  connection  with an  exchange  of Fund  shares  for the  assets of such
investment company.

    Shares may be sold at net asset  value to any  officer,  director,  trustee,
general partner or employee of the Fund, the Portfolio or any investment company
for  which  Eaton  Vance  or BMR  acts as  investment  adviser,  any  investment
advisory,  agency,  custodial or trust account  managed or administered by Eaton
Vance or by any parent,  subsidiary  or other  affiliate of Eaton Vance,  or any
officer,  director or employee of any parent,  subsidiary or other  affiliate of
Eaton Vance. The terms "officer,"  "director,"  "trustee,"  "general partner" or
"employee" as used in this paragraph  include any such person's spouse and minor
children, and also retired officers,  directors,  trustees, general partners and
employees and their spouses and minor  children.  Shares of the Fund may also be
sold at net asset value to registered  representatives  and employees of certain
Authorized  Firms and to such persons'  spouses and children under the age of 21
and their beneficial accounts.

    The Trust  reserves  the right to suspend or limit the offering of shares of
the Fund to the public at any time.

    The Principal  Underwriter  acts as principal in selling  shares of the Fund
under the  Distribution  Agreement  with the  Trust on  behalf of the Fund.  The
expenses of printing  copies of  prospectuses  used to offer shares to financial
service firms or investors and other selling  literature and of advertising  are
borne by the  Principal  Underwriter.  The fees and expenses of  qualifying  and
registering and maintaining qualifications and registrations of the Fund and its
shares  under  Federal  and state  securities  laws are  borne by the Fund.  The
Distribution  Agreement  is  renewable  annually by the Board of Trustees of the
Trust  (including a majority of its Trustees who are not  interested  persons of
the Principal Underwriter or the Trust), may be terminated on six months' notice
by either party, and is automatically terminated upon assignment.  The Principal
Underwriter  distributes Fund shares on a "best efforts" basis under which it is
required  to take  and pay for only  such  shares  as may be sold.  The Fund has
authorized the Principal  Underwriter to act as its agent in repurchasing shares
at the rate of $2.50 for each  repurchase  transaction  handled by the Principal
Underwriter.  The Principal  Underwriter estimates that the expenses incurred by
it in acting as  repurchase  agent for the Fund will  exceed  the  amounts  paid
therefor  by the  Fund.  For  the  amount  paid  by the  Fund  to the  Principal
Underwriter for acting as repurchase agent, see "Fees and Expenses" in this Part
II.  The  Principal  Underwriter  allows  Authorized  Firms  discounts  from the
applicable  public  offering price which are alike for all Firms.  However,  the
Principal  Underwriter may allow,  upon notice to all Authorized Firms with whom
it has  agreements,  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. For the amount of sales charges for sales
of Fund shares paid to the  Principal  Underwriter  (and  Authorized  Firms) see
"Fees and Expenses" in this Part II.

    See  the  Statement  of  Assets  and  Liabilities  in the  Fund's  Financial
Statements  in this Part II for a  specimen  price  make-up  sheet  showing  the
computation of maximum offering price per share as at December 31, 1994.

                                 SERVICE PLAN

    The  Trust on behalf of the Fund has  adopted  a Service  Plan (the  "Plan")
designed to meet the  requirements of Rule 12b-1 (the "Rule") under the 1940 Act
and the  service  fee  requirements  of the  revised  sales  charge  rule of the
National  Association of Securities Dealers,  Inc.  (Management believes service
fee payments are not distribution  expenses governed by the Rule, but has chosen
to have the  Plan  approved  as if the  Rule  were  applicable.)  The  following
supplements the discussion of the Plan contained in the Fund's Prospectus.

    Pursuant  to such  Rule,  the  Plan  has been  approved  by the  independent
Trustees of the Trust, who have no direct or indirect  financial interest in the
Plan,  and by all of the  Trustees of the Trust on behalf of the Fund.  The Plan
amends and  replaces the Fund's  original  distribution  plan (which  originally
became  effective  on  July  9,  1984  and  which  was  approved  by the  Fund's
shareholders).

    The Plan remains in effect  through  April 28,  1996,  and from year to year
thereafter,  provided such  continuance is approved by a vote of both a majority
of (i) those Trustees who are not  interested  persons of the Trust and who have
no direct or indirect  financial  interest in the  operation  of the Plan or any
agreements  related  to it (the  "Rule  12b-1  Trustees")  and  (ii)  all of the
Trustees then in office,  cast in person at a meeting (or  meetings)  called for
the purpose of voting on this Plan.  The Plan may be terminated any time by vote
of the Rule 12b-1 Trustees or by a vote of a majority of the outstanding  voting
securities of the Fund.

    Under the Plan, the President or a Vice President of the Trust shall provide
to the  Trustees  for  their  review,  and the  Trustees  shall  review at least
quarterly,  a  written  report  of the  amount  expended  under the Plan and the
purposes for which such  expenditures  were made. The Plan may not be amended to
increase  materially  the  payments  described  herein  without  approval of the
shareholders  of the Fund, and all material  amendments of the Plan must also be
approved by the Trustees of the Trust as  prescribed  by Rule 12b-1.  So long as
the Plan is in effect,  the  selection  and  nomination  of Trustees who are not
interested  persons of the Trust shall be  committed  to the  discretion  of the
Trustees who are not such interested persons.  The Trustees have determined that
in their  judgment there is a reasonable  likelihood  that the Plan will benefit
the Fund and its  shareholders.  For the service fees paid by the Fund under the
Plan see "Fees and Expenses" in this Part II.

                           PERFORMANCE INFORMATION

    The  table  below   indicates  the  total  return   (capital   changes  plus
reinvestment of all distributions) on a hypothetical investment of $1,000 in the
Fund covering the ten-, five- and one-year periods ended December 31, 1994.

                         VALUE OF A $1,000 INVESTMENT

<TABLE>
<CAPTION>
                                                                               TOTAL RETURN                     TOTAL RETURN
                                                                           EXCLUDING SALES CHARGE          INCLUDING SALES CHARGE
                                                          VALUE OF      ----------------------------    ----------------------------
                          INVESTMENT       AMOUNT OF     INVESTMENT
INVESTMENT PERIOD            DATE         INVESTMENT<F1> ON 12/31/94     CUMULATIVE      ANNUALIZED      CUMULATIVE      ANNUALIZED
- -----------------------------------------------------------------------------------------------------------------------------------
<C>                       <C>              <C>            <C>            <C>             <C>             <C>             <C>
10 Years Ended 12/31/94   12/31/84<F2>      $952.45       $2,176.77       128.54%           8.62%         117.69%          8.09%
5 Years Ended 12/31/94    12/31/89          $952.85       $1,338.94        40.52%           7.04%          33.84%          6.00%
1 Year Ended 12/31/94     12/31/93          $952.70       $  933.37        -2.03%          -2.03%          -6.68%         -6.68%

                                                         PERCENTAGE CHANGES
                                               DECEMBER 31, 1985 -- DECEMBER 31, 1994
<CAPTION>
                          NET ASSET VALUE TO NET ASSET VALUE                      MAXIMUM OFFERING PRICE TO NET ASSET VALUE
  FISCAL                  WITH ALL DISTRIBUTIONS REINVESTED                           WITH ALL DISTRIBUTIONS REINVESTED
   YEAR             -------------------------------------------------           ---------------------------------------------------
   ENDED            ANNUAL            CUMULATIVE        AVERAGE ANNUAL          ANNUAL            CUMULATIVE        AVERAGE ANNUAL
- -----------------------------------------------------------------------------------------------------------------------------------
<C>                 <C>               <C>               <C>                     <C>               <C>               <C>  
12/31/85            13.19%              13.19%              13.19%               7.82%               7.82%               7.82%
12/31/86            13.37%              28.33%              13.28%               7.98%              22.23%              10.56%
12/31/87             4.17%              33.67%              10.16%              -0.78%              27.32%               8.39%
12/31/88             7.46%              43.65%               9.48%               2.36%              36.83%               8.15%
12/31/89            13.21%              62.63%              10.21%               7.84%              54.91%               9.15%
12/31/90             8.97%              77.21%              10.01%               3.79%              68.79%               9.12%
12/31/91            14.42%             102.76%              10.63%               8.99%              93.13%               9.86%
12/31/92             5.28%             113.48%               9.94%               0.28%             103.34%               9.28%
12/31/93             9.26%             133.26%               9.87%               4.07%             122.18%               9.28%
12/31/94            -2.03%             128.54%               8.62%              -6.68%             117.68%               8.09%

    Past performance is not indicative of future results.  Investment return and
principal value will fluctuate and shares,  when redeemed,  may be worth more or
less than their original cost.
<FN>
- ------------
<F1> Initial  investment less the then applicable maximum sales charge of 4.75%.
     Effective  March 27, 1995,  the current  maximum sales charge is 3.75% (see
     "How to Buy Fund Shares" in the Fund's current Prospectus).
<F2> Investment operations began on August 24, 1984.
</TABLE>
    For the 30-day  period ended  December  31, 1994,  the yield of the Fund was
5.56%. The Fund's  distribution  rate (calculated on December 31, 1994 and based
on the Fund's monthly  distribution  paid on December 15, 1994) was 7.4% and the
Fund's effective distribution rate (calculated on the same date and based on the
same monthly distribution) was 7.66%.

    From time to time,  advertisements  and other material  furnished to present
and   prospective   shareholders   may  include   information,   charts   and/or
illustrations of the Fund's net asset value per share history.

<TABLE>
<CAPTION>
                            MONTH-NET ASSET VALUES
                INCEPTION DATE: AUGUST 24, 1984 - PRICE $11.66

                        1984     1985      1986     1987     1988     1989     1990     1991     1992     1993     1994     1995
                        ----     ----      ----     ----     ----     ----     ----     ----     ----     ----     ----     ----
<S>                     <C>      <C>       <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>
January                 n/a      12.35     12.10    12.34    11.78    11.25    11.33    11.41    11.59    11.52    11.50    10.51
February                n/a      12.02     12.54    12.37    11.83    11.11    11.26    11.37    11.55    11.65    11.31    10.65
March                   n/a      12.03     12.80    12.24    11.69    10.97    11.21    11.33    11.38    11.67    11.07    10.65
April                   n/a      11.99     12.60    11.95    11.57    11.14    11.05    11.37    11.34    11.69    10.90
May                     n/a      12.20     12.32    11.85    11.45    11.27    11.20    11.33    11.38    11.60    10.82
June                    n/a      12.18     12.40    11.87    11.54    11.46    11.26    11.28    11.44    11.65    10.75
July                    n/a      11.94     12.32    11.69    11.41    11.63    11.33    11.30    11.53    11.65    10.81
August                 11.65     12.00     12.57    11.61    11.32    11.39    11.16    11.43    11.56    11.72    10.77
September              12.06     11.93     12.31    11.40    11.41    11.36    11.16    11.52    11.64    11.70    10.61
October                12.38     11.97     12.27    11.48    11.49    11.53    11.21    11.58    11.46    11.64    10.54
November               12.38     12.07     12.27    11.51    11.33    11.54    11.31    11.60    11.33    11.51    10.44
December               12.22     12.26     12.36    11.54    11.23    11.52    11.37    11.80    11.38    11.48    10.42
</TABLE>

                            ADDITIONAL TAX MATTERS

    The Fund  qualified  as a RIC  under  the Code for its  taxable  year  ended
December 31, 1994 (see Notes to Financial Statements).

             CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES

    As at March 31, 1995,  the  Trustees and officers of the Trust,  as a group,
owned in the aggregate less than 1% of the outstanding shares of the Fund. As at
March 31, 1995, Merrill Lynch, Pierce,  Fenner & Smith, Inc., New Brunswick,  NJ
was the record owner of approximately 18.2% of the outstanding shares,  which it
held on behalf of its  customers who are the  beneficial  owners of such shares,
and as to which it had voting power under certain limited circumstances.  To the
Trust's knowledge, no other person owned of record or beneficially 5% or more of
the Fund's outstanding shares on such date.
<PAGE>
                             FINANCIAL STATEMENTS
    Registrant  incorporates by reference the audited financial  information for
the Fund and the Portfolio  contained in the Fund's  shareholder  report for the
fiscal year ended December 31, 1994 as previously filed  electronically with the
Securities and Exchange Commission (Accession Number 0000950156-95-000105).
    
<PAGE>
INVESTMENT ADVISER OF 
GOVERNMENT OBLIGATIONS PORTFOLIO
Boston Management and Research
24 Federal Street
Boston, MA 02110

ADMINISTRATOR OF EV TRADITIONAL
GOVERNMENT OBLIGATIONS FUND
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
Coopers & Lybrand L.L.P.
One Post Office Square
Boston, MA 02109




EV TRADITIONAL 
GOVERNMENT OBLIGATIONS FUND
24 FEDERAL STREET
BOSTON, MA 02110






[LOGO]

EV Traditional
Government
Obligations
Fund



Statement of
Additional
Information
May 1, 1995

<PAGE>

                                    PART C

                              OTHER INFORMATION

ITEM 24:  FINANCIAL STATEMENTS AND EXHIBITS
           (A) FINANCIAL STATEMENTS
               INCLUDED IN PART A:
                 Financial Highlights for EV Classic Government Obligations Fund
                   for the period from the start of business,  November 1, 1993,
                   to December 31, 1993 and for the one year ended  December 31,
                   1994.
                 Financial  Highlights  for EV Marathon  Government  Obligations
                   Fund for the period from the start of  business,  November 1,
                   1993,  to  December  31,  1993  and for the  one  year  ended
                   December 31, 1994.
                 Financial Highlights for EV Traditional  Government Obligations
                   Fund for the ten years ended December 31, 1994
               INCLUDED IN PART B:

               INCORPORATED BY  REFERENCE  TO THE ANNUAL  REPORTS FOR THE FUNDS,
                   EACH DATED DECEMBER 31, 1994, FILED  ELECTRONICALLY  PURSUANT
                   TO SECTION 30(B)(2) OF THE INVESTMENT COMPANY ACT OF 1940

               FOR EV  CLASSIC   GOVERNMENT   OBLIGATIONS  FUND  (ACCESSION  NO.
                   0000950156-95-000085)

                   EV  MARATHON  GOVERNMENT   OBLIGATIONS  FUND  (ACCESSION  NO.
                   0000950156-95-000118)

                   EV TRADITIONAL  GOVERNMENT  OBLIGATIONS  FUND  (ACCESSION NO.
                   0000950156-95-000105)

                 Financial  Statements  for the  above-referenced  Funds for the
                   time periods set forth in each Fund's  Report are as follows:
                   Statement of Assets and Liabilities as of December 31, 1994
                   Statement of Operations
                   Statement of Changes in Net Assets
                   Financial Highlights
                   Notes to Financial Statements
                   Report of Independent Accountants
                 Financial Statements for GOVERNMENT  OBLIGATIONS  PORTFOLIO are
                   as follows:
                   Portfolio of Investments as of December 31, 1994
                   Statement of Assets and Liabilities as of December 31, 1994
                   Statement of Operations for the year ended December 31, 1994
                   Statement  of Changes  in Net Assets for the  period from the
                   start of business, October 28, 1993, to December 31, 1993 and
                   for the year ended December 31, 1994.
                   Supplementary Data for the period from the start of business,
                   October 28, 1993, to December 31, 1993 and for the year ended
                   December 31, 1994.  Notes to Financial  Statements
                   Report of Independent Accountants

           (B) EXHIBITS:
   (1)(a)           Amended and Restated  Declaration  of Trust dated August 17,
                    1993 filed as Exhibit (1)(a) to Post-Effective Amendment No.
                    17 and incorporated herein by reference.
      (b)           Establishment  and  Designation  of Series dated February 1,
                    1991 filed as Exhibit 1 (b) to Post-Effective  Amendment No.
                    11 and incorporated herein by reference.
      (c)           Amendment and Restatement of  Establishment  and Designation
                    of Series  dated  July 21,  1992  filed as  Exhibit  1(c) to
                    Post-Effective  Amendment No. 16 and incorporated  herein by
                    reference.
      (d)           Amendment and Restatement of  Establishment  and Designation
                    of Series dated  September 27, 1993 filed as Exhibit  (1)(d)
                    to Post-Effective  Amendment No. 18 and incorporated  herein
                    by reference.
   (2)(a)           By-Laws (As Amended  November 31, 1986) filed as Exhibit (2)
                    to Post-Effective Amendment No. 9 and incorporated herein by
                    reference.
      (b)           Amendment to By-Laws of Eaton Vance  Government  Obligations
                    Trust dated  December  13,  1993 filed as Exhibit  (2)(b) to
                    Post-Effective  Amendment No. 19 and incorporated  herein by
                    reference.
   (3)              Not applicable
   (4)              Not applicable
   (5)              Investment  Advisory  Agreement with Eaton Vance  Management
                    for Eaton Vance Short-Term  Treasury Fund dated  February 4,
                    1991 filed as Exhibit (5)(b) to Post-Effective Amendment No.
                    11 and incorporated herein by reference.
   (6)(a)(1)        Distribution  Agreement with Eaton Vance Distributors,  Inc.
                    dated July 9, 1984 filed as  Exhibit  (6) to  Post-Effective
                    Amendment No. 6 and incorporated herein by reference.
      (a)(2)        Distribution  Agreement with Eaton Vance Distributors,  Inc.
                    for Eaton Vance Short-Term  Treasury Fund dated  February 4,
                    1991 as Amended  and  Restated  February  25,  1991 filed as
                    Exhibit  (6)(a)(2) to  Post-Effective  Amendment  No. 12 and
                    incorporated herein by reference.
      (a)(3)        Amended    Distribution    Agreement    with   Eaton   Vance
                    Distributors,  Inc.  for EV Classic  Government  Obligations
                    Fund dated January 27, 1995 filed herewith.
      (a)(4)        Distribution  Agreement with Eaton Vance Distributors,  Inc.
                    for EV Marathon  Government  Obligations  Fund dated October
                    28,  1993  filed  as  Exhibit  (6)(a)(4)  to  Post-Effective
                    Amendment No. 19 and incorporated herein by reference.
      (b)           Selling Group  Agreement  between Eaton Vance  Distributors,
                    Inc.  and  Authorized  Dealers  filed as  Exhibit  (6)(b) to
                    Post-Effective  Amendment No. 19 and incorporated  herein by
                    reference.
      (c)           Schedule  of Dealer  Discounts  and Sales  Charges  filed as
                    Exhibit  (6)(c)  to  Post-Effective  Amendment  No.  19  and
                    incorporated by reference.
   (7)              Not applicable
   (8)              Custodian  Agreement  with  Investors  Bank & Trust  Company
                    dated   December   17,   1990  filed  as   Exhibit   (8)  to
                    Post-Effective  Amendment No. 11 and incorporated  herein by
                    reference.
   (9)(a)           Administrative   Services   Agreement   with   Eaton   Vance
                    Management for EV Traditional  Government  Obligations  Fund
                    dated  October  28,  1993 filed as  Exhibit  (9)(a) to Post-
                    Effective  Amendment  No.  19  and  incorporated  herein  by
                    reference.
      (b)           Administrative   Services   Agreement   with   Eaton   Vance
                    Management for EV Classic Government  Obligations Fund dated
                    October 28, 1993 filed as  Exhibit (9)(b)  to Post-Effective
                    Amendment No. 19 and incorporated herein by reference.
      (c)           Administrative   Services   Agreement   with   Eaton   Vance
                    Management for EV Marathon Government Obligations Fund dated
                    October 28, 1993 filed as Exhibit  (9)(c)  to Post-Effective
                    Amendment No. 19 and incorporated herein by reference.
   (10)             Not applicable
   (11)(a)          Consent of Independent Accountants for EV Classic Government
                    Obligations Fund filed herewith.
       (b)          Consent  of   Independent   Accountants   for  EV   Marathon
                    Government Obligations Fund filed herewith.
       (c)          Consent  of  Independent   Accountants  for  EV  Traditional
                    Government Obligations Fund filed herewith.
   (12)             Not applicable
   (13)             Agreement with Eaton Vance Management, Inc. in consideration
                    of providing  initial  capital,  dated July 5, 1984 filed as
                    Exhibit  (13)  to   Post-Effective   Amendment   No.  6  and
                    incorporated herein by reference.
   (14)(a)          Vance,   Sanders   Profit   Sharing   Retirement   Plan  for
                    Self-Employed    Persons   with   Adoption   Agreement   and
                    instructions  filed  as  Exhibit  #14(1)  to  Post-Effective
                    Amendment #22 on Form N-1 under the  Securities  Act of 1933
                    (File No. 2-28471) and incorporated herein by reference.
       (b)          Eaton & Howard, Vance Sanders Defined Contribution Prototype
                    Plan  and  Trust   with   Adoption   Agreements   (1)  Basic
                    Profit-Sharing  Retirement  Plan,  (2) Basic Money  Purchase
                    Pension Plan,  (3) Thrift Plan  Qualifying as Profit Sharing
                    Plan, (4) Thrift Plan Qualifying as Money Purchase Plan, (5)
                    Integrated  Profit Sharing  Retirement  Plan, (6) Integrated
                    Money  Purchase  Pension  Plan  filed  as  Exhibit  14(2) to
                    Post-Effective   Amendment   #22  on  Form  N-1   under  the
                    Securities Act of 1933 (File No.  2-28471) and  incorporated
                    herein by reference.
       (c)          Individual  Retirement  Custodial  Account (Form 5305-A) and
                    Investment  Instruction  Form  filed  as  Exhibit  14(3)  to
                    Post-Effective   Amendment   #22  on  Form  N-1   under  the
                    Securities Act of 1933 (File No.  2-28471) and  incorporated
                    herein by reference.
       (d)          Eaton & Howard,  Vance Sanders  Variable  Pension  Prototype
                    Plan and Trust  with  Adoption  Agreement  filed as  Exhibit
                    14(b) to Post-Effective  Amendment #22 on Form N-1 under the
                    Securities Act of 1933 (File No.  2-28471) and  incorporated
                    herein by reference.
   (15)(a)          Service  Plan for Eaton Vance  Government  Obligations  Fund
                    dated  July  7,  1993  pursuant  to  Rule  12b-1  under  the
                    Investment  Company Act of 1940 filed as Exhibit  (15)(a) to
                    Post-Effective  Amendment No. 17 and incorporated  herein by
                    reference.
       (b)          Distribution   Plan   pursuant   to  Rule  12b-1  under  the
                    Investment  Company Act of 1940 for Eaton  Vance  Short-Term
                    Treasury Fund dated February 4, 1991 as Amended and Restated
                    February 25, 1991 filed as Exhibit (15)(b) to Post-Effective
                    Amendment No.
                    12 and incorporated herein by reference.
       (c)          Amended   Distribution   Plan  for  EV  Classic   Government
                    Obligations Fund pursuant to Rule 12b-1 under the Investment
                    Company Act of 1940 dated January 27, 1995 filed herewith.
       (d)          Distribution  Plan for EV  Marathon  Government  Obligations
                    Fund  pursuant to  Rule 12b-1 under the  Investment  Company
                    Act of 1940 dated October 28, 1993 filed as Exhibit  (15)(d)
                    to Post-Effective  Amendment No. 19 and incorporated  herein
                    by reference.
   (16)             Schedules for  Computation of Performance  Quotations  filed
                    herewith.
   (17)(a)          Power of  Attorney  for Eaton Vance  Government  Obligations
                    Trust dated  February  25, 1994 filed as Exhibit  (17)(a) to
                    Post-Effective  Amendment No. 19 and incorporated  herein by
                    reference.
       (b)          Power of Attorney for Government Obligations Portfolio dated
                    February 25, 1994 filed as Exhibit (17)(b) to Post-Effective
                    Amendment No. 19 and incorporated herein by reference.

ITEM 25.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT
    Not applicable

ITEM 26.  NUMBER OF HOLDERS OF SECURITIES
                      (1)                                         (2)
                 TITLE OF CLASS                         NUMBER OF RECORD HOLDERS
Shares of beneficial interest without par value           as of March 31, 1995
      Eaton Vance Short-Term Treasury Fund                           65
     EV Classic Government Obligations Fund                       1,164
    EV Marathon Government Obligations Fund                       3,041
   EV Traditional Government Obligations Fund                    11,931

ITEM 27.  INDEMNIFICATION
    No change  from the  information  set forth in Item 4 of Form N-1A  filed as
Pre-Effective  Amendment  No. 1 which  information  is  incorporated  herein  by
reference.

    Registrant's  Trustees and officers are insured under a standard mutual fund
errors and  omissions  insurance  policy  covering  loss  incurred  by reason of
negligent  errors and omissions  committed in their  capacities as such.
<PAGE>
ITEM 28. BUSINESS AND OTHER CONNECTIONS OF INVESTMENT  ADVISER Reference is made
to  the  information  set  forth  under  the  caption  "Investment  Adviser  and
Administrator"  in the Statement of Additional  Information which information is
incorporated herein by reference.

ITEM 29.  PRINCIPAL UNDERWRITERS
    (A) Registrant's  principal underwriter,  Eaton Vance Distributors,  Inc., a
        wholly-owned  subsidiary  of Eaton Vance  Management,  is the  principal
        underwriter for each of the investment companies named below:
<TABLE>
<CAPTION>
  <S>                                                 <C>
  EV Classic Alabama Tax Free Fund                    EV Classic New Jersey Tax Free Fund
  EV Classic Arizona Tax Free Fund                    EV Classic New York Limited Maturity
  EV Classic Arkansas Tax Free Fund                     Tax Free Fund
  EV Classic California Limited Maturity              EV Classic New York Tax Free Fund
    Tax Free Fund                                     EV Classic North Carolina Tax Free Fund
  EV Classic California Municipals Fund               EV Classic Ohio Limited Maturity Tax Free Fund
  EV Classic Colorado Tax Free Fund                   EV Classic Ohio Tax Free Fund
  EV Classic Connecticut Limited Maturity             EV Classic Oregon Tax Free Fund
    Tax Free Fund                                     EV Classic Pennsylvania Limited Maturity
  EV Classic Connecticut Tax Free Fund                  Tax Free Fund
  EV Classic Florida Insured Tax Free Fund            EV Classic Pennsylvania Tax Free Fund
  EV Classic Florida Limited Maturity                 EV Classic Rhode Island Tax Free Fund
    Tax Free Fund                                     EV Classic Strategic Income Fund
  EV Classic Florida Tax Free Fund                    EV Classic South Carolina Tax Free Fund
  EV Classic Georgia Tax Free Fund                    EV Classic Special Equities Fund
  EV Classic Government Obligations Fund              EV Classic Stock Fund
  EV Classic Greater China Growth Fund                EV Classic Tennessee Tax Free Fund
  EV Classic Growth Fund                              EV Classic Texas Tax Free Fund
  EV Classic Hawaii Tax Free Fund                     EV Classic Total Return Fund
  EV Classic High Income Fund                         EV Classic Virginia Tax Free Fund
  EV Classic Investors Fund                           EV Classic West Virginia Tax Free Fund
  EV Classic Kansas Tax Free Fund                     EV Marathon Alabama Tax Free Fund
  EV Classic Kentucky Tax Free Fund                   EV Marathon Arizona Limited Maturity
  EV Classic Louisiana Tax Free Fund                    Tax Free Fund
  EV Classic Maryland Tax Free Fund                   EV Marathon Arizona Tax Free Fund
  EV Classic Massachusetts Limited Maturity           EV Marathon Arkansas Tax Free Fund
    Tax Free Fund                                     EV Marathon California Limited Maturity
  EV Classic Massachusetts Tax Free Fund                Tax Free Fund
  EV Classic Michigan Limited Maturity                EV Marathon California Municipals Fund
    Tax Free Fund                                     EV Marathon Colorado Tax Free Fund
  EV Classic Michigan Tax Free Fund                   EV Marathon Connecticut Limited Maturity
  EV Classic Minnesota Tax Free Fund                    Tax Free Fund
  EV Classic Mississippi Tax Free Fund                EV Marathon Connecticut Tax Free Fund
  EV Classic Missouri Tax Free Fund                   EV Marathon Emerging Markets Fund
  EV Classic National Limited Maturity                Eaton Vance Equity - Income Trust
    Tax Free Fund                                     EV Marathon Florida Insured Tax Free Fund
  EV Classic National Municipals Fund                 V Marathon Florida Limited Maturity
  EV Classic New Jersey Limited Maturity                Tax Free Fund
    Tax Free Fund                                     EV Marathon Florida Tax Free Fund
<PAGE>
  EV Marathon Georgia Tax Free Fund                   EV Marathon South Carolina Tax Free Fund
  EV Marathon Gold & Natural Resources Fund           EV Marathon Special Equities Fund
  EV Marathon Government Obligations Fund             EV Marathon Stock Fund
  EV Marathon Greater China Growth Fund               EV Marathon Tennessee Tax Free Fund
  EV Marathon Greater India Fund                      EV Marathon Texas Tax Free Fund
  EV Marathon Growth Fund                             EV Marathon Total Return Fund
  EV Marathon Hawaii Tax Free Fund                    EV Marathon Virginia Limited Maturity
  EV Marathon High Income Fund                          Tax Free  Fund
  EV Marathon Investors Fund                          EV Marathon Virginia Tax Free Fund
  EV Marathon Kansas Tax Free Fund                    EV Marathon West Virginia Tax Free Fund
  EV Marathon Kentucky Tax Free Fund                  EV Traditional California Municipals Fund
  EV Marathon Louisiana Tax Free Fund                 EV Traditional Connecticut Tax Free Fund
  EV Marathon Maryland Tax Free Fund                  EV Traditional Emerging Markets Fund
  EV Marathon Massachusetts Limited Maturity          EV Traditional Florida Insured Tax Free Fund
    Tax Free Fund                                     EV Traditional Florida Limited Maturity
  EV Marathon Massachusetts Tax Free Fund               Tax Free Fund
  EV Marathon Michigan Limited Maturity               EV Traditional Florida Tax Free Fund
    Tax Free Fund                                     EV Traditional Government Obligations Fund
  EV Marathon Michigan Tax Free Fund                  EV Traditional Greater China Growth Fund
  EV Marathon Minnesota Tax Free Fund                 EV Traditional Greater India Fund
  EV Marathon Mississippi Tax Free Fund               EV Traditional Growth Fund
  EV Marathon Missouri Tax Free Fund                  Eaton Vance Income Fund of Boston
  EV Marathon National Limited Maturity               EV Traditional Investors Fund
    Tax Free Fund                                     Eaton Vance Municipal Bond Fund L.P.
  EV Marathon National Municipals Fund                EV Traditional National Limited Maturity
  EV Marathon New Jersey Limited Maturity               Tax Free Fund
    Tax Free Fund                                     EV Traditional National Municipals Fund
  EV Marathon New Jersey Tax Free Fund                EV Traditional New Jersey Tax Free Fund
  EV Marathon New York Limited Maturity               EV Traditional New York Limited Maturity
    Tax Free Fund                                       Tax Free Fund
  EV Marathon New York Tax Free Fund                  EV Traditional New York Tax Free Fund
  EV Marathon North Carolina Limited Maturity         EV Traditional Pennsylvania Tax Free Fund
    Tax Free Fund                                     EV Traditional Special Equities Fund
  EV Marathon North Carolina Tax Free Fund            EV Traditional Stock Fund
  EV Marathon Ohio Limited Maturity                   EV Traditional Total Return Fund
    Tax Free Fund                                     Eaton Vance Cash Management Fund
  EV Marathon Ohio Tax Free Fund                      Eaton Vance Liquid Assets Fund
  EV Marathon Oregon Tax Free Fund                    Eaton Vance Money Market Fund
  EV Marathon Pennsylvania Limited Maturity           Eaton Vance Prime Rate Reserves
    Tax Free Fund                                     Eaton Vance Short-Term Treasury Fund
  EV Marathon Pennsylvania Tax Free Fund              Eaton Vance Tax Free Reserves
  EV Marathon Rhode Island Tax Free Fund              Massachusetts Municipal Bond Portfolio
  EV Marathon Strategic Income Fund
    (b)
</TABLE>
<TABLE>
<CAPTION>
               (1)                                    (2)                                  (3)
       NAME AND PRINCIPAL                  POSITIONS AND OFFICES                POSITIONS AND OFFICE
        BUSINESS ADDRESS                 WITH PRINCIPAL UNDERWRITER                WITH REGISTRANT
       ------------------                --------------------------             --------------------
<S>                                      <C>                                    <C>
James B. Hawkes*                         Vice President and Director              Vice President and
                                                                                  Trustee
William M. Steul*                        Vice President and Director              None
Wharton P. Whitaker*                     President and Director                   None
Howard D. Barr                           Vice President                           None
  2750 Royal View Court
  Oakland, Michigan
Nancy E. Belza                           Vice President                           None
  463-1 Buena Vista East
  San Francisco, California
Chris Berg                               Vice President                           None
  45 Windsor Lane
  Palm Beach Gardens, Florida
H. Day Brigham, Jr.*                     Vice President                           None
Susan W. Bukima                          Vice President                           None
  106 Princess Street
  Alexandria, Virginia
Jeffrey W. Butterfield                   Vice President                           None
  9378 Mirror Road
  Columbus, Indiana
Mark A. Carlson*                         Vice President                           None
Jeffrey Chernoff                         Vice President                           None
  115 Concourse West
  Bright Waters, New York
William A. Clemmer*                      Vice President                           None
James S. Comforti                        Vice President                           None
  1859 Crest Drive
  Encinitas, California
Mark P. Doman                            Vice President                           None
  107 Pine Street
  Philadelphia, Pennsylvania
Michael A. Foster                        Vice President                           None
  850 Kelsey Court
  Centerville, Ohio
William M. Gillen                        Vice President                           None
  280 Rea Street
  North Andover, Massachusetts
Hugh S. Gilmartin                        Vice President                           None
  1531-184th Avenue, NE
  Bellevue, Washington
Richard E. Houghton*                     Vice President                           None
Brian Jacobs*                            Senior Vice President                    None
Stephen D. Johnson                       Vice President                           None
  13340 Providence Lake Drive
  Alpharetta, Georgia
Thomas J. Marcello                       Vice President                           None
  553 Belleville Avenue
  Glen Ridge, New Jersey
Timothy D. McCarthy                      Vice President                           None
  9801 Germantown Pike
  Lincoln Woods Apt. 416
  Lafayette Hill, Pennsylvania
Morgan C. Mohrman*                       Senior Vice President                    None
Gregory B. Norris                        Vice President                           None
  6 Halidon Court
  Palm Beach Gardens, Florida
Thomas Otis*                             Secretary and Clerk                      Secretary
George D. Owen                           Vice President                           None
  1911 Wildwood Court
  Blue Springs, Missouri
F. Anthony Robinson                      Vice President                           None
  510 Gravely Hill Road
  Wakefield, Rhode Island
Benjamin A. Rowland, Jr.*                Vice President,                          None
                                           Treasurer and Director
John P. Rynne*                           Vice President                           None
George V.F. Schwab, Jr.                  Vice President                           None
  9501 Hampton Oaks Lane
  Charlotte, North Carolina
Cornelius J. Sullivan*                   Vice President                           None
Maureen C. Tallon                        Vice President                           None
  518 Armistead Drive
  Nashville, Tennessee
David M. Thill                           Vice President                           None
  126 Albert Drive
  Lancaster, New York
William T. Toner                         Vice President                           None
  747 Lilac Drive
  Santa Barbara, California
Chris Volf                               Vice President                           None
  6517 Thoroughbred Loop
  Odessa, Florida
Donald E. Webber*                        Senior Vice President                    None
Sue Wilder                               Vice President                           None
  141 East 89th Street
  New York, New York
</TABLE>
- ---------
*Address is 24 Federal Street, Boston, MA 02110
    (c) Not applicable

ITEM 30.  LOCATION OF ACCOUNTS AND RECORDS
    All applicable  accounts,  books and documents  required to be maintained by
the  Registrant by Section 31(a) of the  Investment  Company Act of 1940 and the
Rules  promulgated   thereunder  are  in  the  possession  and  custody  of  the
Registrant's  custodian,  Investors  Bank & Trust  Company,  24 Federal  Street,
Boston,  MA 02110 and 89 South Street,  Boston, MA 02111 and its transfer agent,
The Shareholder  Services Group,  Inc., 53 State Street,  Boston, MA 02104, with
the exception of certain  corporate  documents and portfolio  trading  documents
which are in the  possession and custody of Eaton Vance  Management,  24 Federal
Street,  Boston, MA 02110. Certain corporate documents of Government Obligations
Portfolio (the "Portfolio") are also maintained by The Bank of Nova Scotia Trust
Company  (Cayman) Ltd., The Bank of Nova Scotia  Building,  P.O. Box 501, George
Town, Grand Cayman,  Cayman Islands,  British West Indies,  and certain investor
account,  Portfolio and the Registrant's accounting records are held by IBT Fund
Services  (Canada) Inc., 1 First Canadian Place,  King Street West,  Suite 2800,
P.O. Box 231, Toronto,  Ontario, Canada M5X 1C8. Registrant is informed that all
applicable accounts, books and documents required to be maintained by registered
investment advisers are in the custody and possession of Eaton Vance Management.

ITEM 31. MANAGEMENT SERVICES
    Not applicable

ITEM 32.  UNDERTAKINGS
    The Registrant  undertakes to furnish to each person to whom a prospectus is
delivered a copy of the latest annual report to  shareholders,  upon request and
without charge.
<PAGE>
                                  SIGNATURES
    Pursuant  to  the  requirements  of the  Securities  Act of  1933,  and  the
Investment  Company Act of 1940, the  Registrant  certifies that it meets all of
the  requirements  for  effectiveness  of this  Post-Effective  Amendment to the
Registration  Statement pursuant to Rule 485(b) under the Securities Act of 1933
and has duly caused this Post-Effective  Amendment to its Registration Statement
to be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Boston, and the Commonwealth of Massachusetts, on the 24th day of April,
1995.
                              EATON VANCE GOVERNMENT OBLIGATIONS TRUST
                              By:  /s/ M. DOZIER GARDNER
                                   ----------------------------------
                                   M. DOZIER GARDNER, President

    Pursuant  to the  requirements  of the  Securities  Act of 1933,  this Post-
Effective  Amendment to the Registration  Statement has been signed below by the
following persons in the capacities and on the dates indicated.

<TABLE>
<CAPTION>
         SIGNATURE                                          TITLE                                    DATE
         ---------                                          -----                                    ----
<S>                                                  <C>                                        <C>
                                                     President, Principal
                                                       Executive Officer and
/s/ M. DOZIER GARDNER                                  Trustee                                  April 24, 1995
- ------------------------------
    M. DOZIER GARDNER

                                                     Treasurer and Principal
                                                       Financial and Accounting
/s/ JAMES L. O'CONNOR                                  Officer                                  April 24, 1995
- ------------------------------
    JAMES L. O'CONNOR

    JAMES B. HAWKES*                                 Trustee                                    April 24, 1995
- ------------------------------
    JAMES B. HAWKES

    DONALD R. DWIGHT*                                Trustee                                    April 24, 1995
- ------------------------------
    DONALD R. DWIGHT

    SAMUEL L. HAYES, III*                            Trustee                                    April 24, 1995
- ------------------------------
    SAMUEL L. HAYES, III

    NORTON H. REAMER*                                Trustee                                    April 24, 1995
- ------------------------------
    NORTON H. REAMER

    JOHN L. THORNDIKE*                               Trustee                                    April 24, 1995
- ------------------------------
    JOHN L. THORNDIKE

    JACK L. TREYNOR*                                 Trustee                                    April 24, 1995
- ------------------------------
    JACK L. TREYNOR



*By: /s/ H. DAY BRIGHAM, JR.
     -------------------------
         H. DAY BRIGHAM, JR.
         As Attorney-in-fact
</TABLE>
<PAGE>
                                  SIGNATURES
    Government  Obligations  Portfolio  has duly  caused this  Amendment  to the
Registration  Statement on Form N-1A of Eaton Vance Government Obligations Trust
(File No. 2-90946) to be signed on its behalf by the undersigned, thereunto duly
authorized, in Toronto, Ontario, Canada, on the 22nd day of February, 1995.
                              GOVERNMENT OBLIGATIONS PORTFOLIO
                              By:  /s/ M. DOZIER GARDNER
                                   ----------------------------------
                                   M. DOZIER GARDNER, President

    This  Amendment  to the  Registration  Statement on Form N-1A of Eaton Vance
Government  Obligations  Trust (File No.  2-90946)  has been signed below by the
following persons in the capacities and on the dates indicated.
<TABLE>
<CAPTION>
         SIGNATURE                                          TITLE                                    DATE
         ---------                                          -----                                    ----
<S>                                                  <C>                                     <C>
                                                     Trustee, President and
                                                       Principal Executive
/s/ M. DOZIER GARDNER                                  Officer                               February 22, 1995
- ------------------------------
    M. DOZIER GARDNER

                                                     Treasurer and Principal
                                                       Financial and Accounting
    JAMES L. O'CONNOR*                                 Officer                               February 22, 1995
- ------------------------------
    JAMES L. O'CONNOR

    DONALD R. DWIGHT*                                Trustee                                 February 22, 1995
- ------------------------------
    DONALD R. DWIGHT

    JAMES B. HAWKES*                                 Trustee                                 February 22, 1995
- ------------------------------
    JAMES B. HAWKES

    SAMUEL L. HAYES, III*                            Trustee                                 February 22, 1995
- ------------------------------
    SAMUEL L. HAYES, III

    NORTON H. REAMER*                                Trustee                                 February 22, 1995
- ------------------------------
    NORTON H. REAMER

    JOHN L. THORNDIKE*                               Trustee                                 February 22, 1995
- ------------------------------
    JOHN L. THORNDIKE

    JACK L. TREYNOR*                                 Trustee                                 February 22, 1995
- ------------------------------
    JACK L. TREYNOR



*By: /s/ M. DOZIER GARDNER
     -------------------------
         M. DOZIER GARDNER
         As Attorney-in-fact
</TABLE>
<PAGE>
                                EXHIBIT INDEX


                                                              PAGE IN SEQUENTIAL
EXHIBIT NO.                 DESCRIPTION                        NUMBERING SYSTEM
- -----------                 -----------                        ----------------

   6(a)(3)     Amended  Distribution  Agreement  with  Eaton
               Vance  Distributors,   Inc.  and  EV  Classic
               Government Obligations Fund dated January 27,
               1995

   11(a)       Consent  of  Independent  Accountants  for EV
               Classic Government Obligations Fund

   11(b)       Consent  of  Independent  Accountants  for EV
               Marathon Government Obligations Fund

   11(c)       Consent  of  Independent  Accountants  for EV
               Traditional Government Obligations Fund

   15(c)       Amended  Distribution  Plan  for  EV  Classic
               Government  Obligations Fund pursuant to Rule
               12b-1  under the  Investment  Company  Act of
               1940 dated January 27, 1995

   16          Schedules  for   Computation  of  Performance
               Quotations




                    EATON VANCE GOVERNMENT OBLIGATIONS TRUST

                         AMENDED DISTRIBUTION AGREEMENT

              ON BEHALF OF EV CLASSIC GOVERNMENT OBLIGATIONS FUND



         AGREEMENT  effective  as  of  January  27,  1995  between  EATON  VANCE
GOVERNMENT   OBLIGATIONS  TRUST,  a  Massachusetts  business  trust  having  its
principal  place of business  in Boston in the  Commonwealth  of  Massachusetts,
hereinafter called the "Trust",  on behalf of EV Classic Government  Obligations
Fund  (the  "Fund"),  and  EATON  VANCE  DISTRIBUTORS,   INC.,  a  Massachusetts
corporation  having its principal place of business in said Boston,  hereinafter
sometimes called the "Principal Underwriter".

         IN  CONSIDERATION  of  the  mutual  promises  and  undertakings  herein
contained, the parties hereto agree:

         1. The Trust grants to the Principal  Underwriter the right to purchase
shares of the Fund upon the terms  hereinbelow set forth during the term of this
Agreement. While this Agreement is in force, the Principal Underwriter agrees to
use its best efforts to find purchasers for shares of the Fund.

         The Principal Underwriter shall have the right to buy from the Fund the
shares needed,  but not more than the shares needed (except for clerical  errors
and errors of transmission) to fill unconditional  orders for shares of the Fund
placed with the Principal Underwriter by financial service firms or investors as
set forth in the current  Prospectus  relating to shares of the Fund.  The price
which the Principal  Underwriter  shall pay for the shares so purchased shall be
equal to the price paid by investors upon purchasing such shares.  The Principal
Underwriter  shall notify Investors Bank & Trust Company,  Custodian of the Fund
("IBT"),  and The Shareholder  Services Group, Inc.,  Transfer Agent of the Fund
("TSSG"),  or a successor transfer agent, at the end of each business day, or as
soon  thereafter as the orders placed with it have been compiled,  of the number
of shares and the prices thereof which the Principal  Underwriter is to purchase
as principal for resale.  The Principal  Underwriter shall take down and pay for
shares  ordered from the Fund on or before the eleventh  business day (excluding
Saturdays) after the shares have been so ordered.

         The right granted to the Principal  Underwriter  to buy shares from the
Fund shall be  exclusive,  except that said  exclusive  right shall not apply to
shares  issued  in  connection  with the  merger or  consolidation  of any other
investment  company or personal holding company with the Fund or the acquisition
by  purchase  or  otherwise  of all (or  substantially  all) the  assets  or the
outstanding  shares  of any such  company,  by the  Fund;  nor shall it apply to
shares, if any, issued by the Fund in distribution of income or realized capital
gains of the Fund payable in shares or in cash at the option of the shareholder.

         2. The shares may be resold by the Principal  Underwriter to or through
financial service firms having agreements with the Principal Underwriter, and to
investors, upon the following terms and conditions.

         The  public  offering  price,  i.e.,  the  price per share at which the
Principal  Underwriter  or  financial  service firm  purchasing  shares from the
Principal  Underwriter may sell shares to the public,  shall be equal to the net
asset value at which the Principal Underwriter is to purchase the shares.

         The net asset  value of shares of the Fund shall be  determined  by the
Trust or IBT,  as the agent of the Fund,  as of the close of regular  trading on
the New York Stock Exchange on each business day on which said Exchange is open,
or as of such other time on each such  business day as may be  determined by the
Trustees of the Trust,  in accordance  with the  methodology  and procedures for
calculating such net asset value authorized by the Trustees.  The Trust may also
cause the net asset value to be determined in  substantially  the same manner or
estimated  in such manner and as of such other time or times as may from time to
time be agreed  upon by the  Trust and  Principal  Underwriter.  The Trust  will
notify the  Principal  Underwriter  each time the net asset  value of the Fund's
shares is determined and when such value is so determined it shall be applicable
to  transactions  as set  forth  in the  current  Prospectus  and  Statement  of
Additional  Information  (hereafter  the  "Prospectus")  relating  to the Fund's
shares.

         No shares of the Fund shall be sold by the Fund  during any period when
the determination of net asset value is suspended pursuant to the Declaration of
Trust,  except to the  Principal  Underwriter,  in the manner and upon the terms
above set forth to cover  contracts  of sale made by the  Principal  Underwriter
with its customers prior to any such  suspension,  and except as provided in the
last  paragraph  of  paragraph 1 hereof.  The Trust shall also have the right to
suspend the sale of the Fund's shares if in the judgment of the Trust conditions
obtaining at any time render such action  advisable.  The Principal  Underwriter
shall  have the  right to  suspend  sales at any  time,  to  refuse to accept or
confirm any order from an investor or financial  service  firm,  or to accept or
confirm  any such  order  in part  only,  if in the  judgment  of the  Principal
Underwriter such action is in the best interests of the Fund.

         3. The Trust agrees that it will, from time to time, but subject to the
necessary  approval  of the  Fund's  shareholders,  take  such  steps  as may be
necessary to register  the Fund's  shares  under the federal  Securities  Act of
1933, as amended from time to time, (the "1933 Act"), to the end that there will
be available  for sale such number of shares as the  Principal  Underwriter  may
reasonably be expected to sell.  The Trust agrees to indemnify and hold harmless
the Principal  Underwriter  and each person,  if any, who controls the Principal
Underwriter  within the  meaning of Section 15 of the 1933 Act against any loss,
liability,   claim,  damages  or  expense  (including  the  reasonable  cost  of
investigating  or  defending  any alleged  loss,  liability,  claim,  damages or
expense and reasonable counsel fees incurred in connection  therewith),  arising
by reason of any person  acquiring  any  shares of the Fund,  which may be based
upon the 1933 Act or on any other  statute or at common  law, on the ground that
the  Registration  Statement  or  Prospectus,  as from time to time  amended and
supplemented,  includes an untrue statement of a material fact or omits to state
a material fact required to be stated  therein or necessary in order to make the
statements therein not misleading, unless such statement or omission was made in
reliance upon, and in conformity with,  information  furnished in writing to the
Trust in  connection  therewith  by or on behalf of the  Principal  Underwriter;
provided, however, that in no case (i) is the indemnity of the Trust in favor of
the  Principal  Underwriter  and any such  controlling  person  to be  deemed to
protect such Principal  Underwriter or any such  controlling  person against any
liability  to the  Trust  or the Fund or its  security  holders  to  which  such
Principal  Underwriter or any such controlling person would otherwise be subject
by  reason  of  willful  misfeasance,  bad  faith,  or gross  negligence  in the
performance  of its  duties  or by  reason  of  its  reckless  disregard  of its
obligations and duties under this Agreement, or (ii) is the Trust or the Fund to
be liable under its indemnity agreement contained in this paragraph with respect
to any claim made  against the  Principal  Underwriter  or any such  controlling
person unless the Principal  Underwriter or any such controlling  person, as the
case may be, shall have notified the Trust in writing  within a reasonable  time
after the summons or other first legal process giving  information of the nature
of the claim  shall have been  served  upon the  Principal  Underwriter  or such
controlling  person (or after such  Principal  Underwriter  or such  controlling
person shall have received notice of such service on any designated  agent), but
failure  to notify  the Trust of any such  claim  shall not  relieve it from any
liability  which the Fund may have to the  person  against  whom such  action is
brought otherwise than on account of its indemnity  agreement  contained in this
paragraph.  The Trust shall be entitled  to  participate,  at the expense of the
Fund, in the defense,  or, if the Trust so elects,  to assume the defense of any
suit  brought to enforce any such  liability,  but if the Trust elects to assume
the  defense,  such  defense  shall be  conducted  by  counsel  chosen by it and
satisfactory  to the Principal  Underwriter  or  controlling  person or persons,
defendant or defendants in the suit. In the event the Trust elects to assume the
defense of any such suit and retains such counsel, the Principal  Underwriter or
controlling  person or persons,  defendant or defendants in the suit, shall bear
the fees and expenses of any additional  counsel  retained by them, but, in case
the Trust does not elect to assume the defense of any such suit,  the Fund shall
reimburse the Principal Underwriter or controlling person or persons,  defendant
or defendants in the suit, for the  reasonable  fees and expenses of any counsel
retained by them. The Trust agrees promptly to notify the Principal  Underwriter
of the  commencement  of any litigation or proceedings  against it or any of its
officers  or  Trustees  in  connection  with the  issuance or sale of any of the
Fund's shares.

         4. The Principal  Underwriter covenants and agrees that, in selling the
shares of the Fund, it will use its best efforts in all respects duly to conform
with the requirements of all state and federal laws relating to the sale of such
shares,  and will indemnify and hold harmless the Trust and each of its Trustees
and officers and each person,  if any, who controls the Trust within the meaning
of Section 15 of the 1933 Act, against any loss,  liability,  damages,  claim or
expense (including the reasonable cost of investigating or defending any alleged
loss, liability,  damages, claim or expense and reasonable counsel fees incurred
in connection  therewith),  arising by reason of any person acquiring any shares
of the Fund,  which may be based  upon the 1933 Act or any other  statute  or at
common law, on account of any wrongful act of the Principal  Underwriter  or any
of its employees  (including any failure to conform with any  requirement of any
state or federal law  relating to the sale of such shares) or on the ground that
the  Registration  Statement  or  Prospectus,  as from time to time  amended and
supplemented,  includes an untrue statement of a material fact or omits to state
a material fact required to be stated  therein or necessary in order to make the
statements therein not misleading, insofar as any such statement or omission was
made in reliance upon, and in conformity with  information  furnished in writing
to  the  Fund  in  connection  therewith  by  or  on  behalf  of  the  Principal
Underwriter,  provided,  however,  that in no case (i) is the  indemnity  of the
Principal Underwriter in favor of any person indemnified to be deemed to protect
the Fund or any such person  against any liability to which the Fund or any such
person would otherwise be subject by reason of willful  misfeasance,  bad faith,
or gross  negligence in the performance of its or his duties or by reason of its
or his reckless disregard of its obligations and duties under this Agreement, or
(ii) is the Principal  Underwriter  to be liable under its  indemnity  agreement
contained in this  paragraph  with respect to any claim made against the Fund or
any  person  indemnified  unless the Trust or such  person,  as the case may be,
shall have notified the  Principal  Underwriter  in writing  within a reasonable
time after the summons or other first legal process  giving  information  of the
nature of the claim shall have been served upon the Trust, the Fund or upon such
person (or after the Trust or such  person  shall have  received  notice of such
service  on  any  designated   agent),  but  failure  to  notify  the  Principal
Underwriter  of any such claim shall not relieve it from any liability  which it
may have to the Fund or any person against whom such action is brought otherwise
than on account of its  indemnity  agreement  contained in this  paragraph.  The
Principal  Underwriter shall be entitled to participate,  at its own expense, in
the defense,  or, if it so elects,  to assume the defense of any suit brought to
enforce any such liability,  but if the Principal  Underwriter  elects to assume
the  defense,  such  defense  shall be  conducted  by  counsel  chosen by it and
satisfactory to the Trust, or to its officers or Trustees, or to any controlling
person or persons,  defendant or  defendants  in the suit. In the event that the
Principal  Underwriter elects to assume the defense of any such suit and retains
such  counsel,  the Fund or such officers or Trustees or  controlling  person or
persons,  defendant or defendants in the suit,  shall bear the fees and expenses
of any  additional  counsel  retained  by them or the  Trust,  but,  in case the
Principal  Underwriter does not elect to assume the defense of any such suit, it
shall  reimburse the Fund, any such officers and Trustees or controlling  person
or persons,  defendant or defendants in such suit, for the  reasonable  fees and
expenses of any counsel retained by them or the Trust. The Principal Underwriter
agrees  promptly to notify the Trust of the  commencement  of any  litigation or
proceedings  against  it in  connection  with the  issue  and sale of any of the
Fund's shares.

         Neither the Principal  Underwriter  nor any financial  service firm nor
any other person is authorized by the Trust to give any  information  or to make
any representations, other than those contained in the Registration Statement or
Prospectus filed with the Securities and Exchange  Commission (the "Commission")
under  the 1933 Act,  (as said  Registration  Statement  and  Prospectus  may be
amended or  supplemented  from time to time),  covering  the shares of the Fund.
Neither the Principal  Underwriter nor any financial  service firm nor any other
person is  authorized  to act as agent  for the Trust or the Fund in  connection
with the offering or sale of shares of the Fund to the public or otherwise.  All
such sales made by the Principal  Underwriter  shall be made by it as principal,
for its own account.  The Principal  Underwriter may,  however,  act as agent in
connection with the repurchase of shares as provided in paragraph 6 below, or in
connection with "exchanges" between investment companies for which the Principal
Underwriter  acts as  Principal  Underwriter  or for which an  affiliate  of the
Principal Underwriter acts as investment adviser.

         5(a).    The Fund will pay, or cause to be paid -

                  (i) all the costs and expenses of the Fund, including fees and
disbursements  of its counsel,  in connection with the preparation and filing of
any required Registration Statement and/or Prospectus under the 1933 Act, or the
Investment  Company Act of 1940, as amended from time to time,  (the "1940 Act")
covering its shares and all amendments and  supplements  thereto,  and preparing
and mailing periodic  reports to shareholders  (including the expense of setting
up in type any such Registration Statement, Prospectus or periodic report);

                  (ii) the  cost of  preparing  temporary  and  permanent  share
certificates (if any) for shares of the Fund;

                  (iii) the cost and  expenses of  delivering  to the  Principal
Underwriter  at its  office in  Boston,  Massachusetts,  all  shares of the Fund
purchased by it as principal hereunder; and

                  (iv) all the federal and state (if any) issue and/or  transfer
taxes  payable  upon the issue by or (in the case of treasury  shares)  transfer
from the Fund to the  Principal  Underwriter  of any and all  shares of the Fund
purchased by the Principal Underwriter hereunder.

         (b) The Principal  Underwriter  agrees that,  after the  Prospectus and
periodic  reports have been set up in type, it will bear the expense of printing
and  distributing any copies thereof which are to be used in connection with the
offering of shares of the Fund to  financial  service  firms or  investors.  The
Principal  Underwriter  further  agrees  that  it  will  bear  the  expenses  of
preparing,  printing and distributing any other literature used by the Principal
Underwriter or furnished by it for use by financial  service firms in connection
with the  offering  of the  shares  of the Fund for sale to the  public  and any
expenses of advertising in connection with such offering. The Fund agrees to pay
the expenses of registration and maintaining registration of its shares for sale
under  federal and state  securities  laws,  and, if  necessary  or advisable in
connection therewith, of qualifying the Trust or the Fund as a dealer or broker,
in such states as shall be selected by the  Principal  Underwriter  and the fees
payable to each such state for  continuing the  qualification  therein until the
Principal   Underwriter   notifies   the  Trust  that  it  does  not  wish  such
qualification continued.

         (c) In  addition,  the Trust  agrees,  in  accordance  with the  Fund's
Amended Distribution Plan (the "Plan"), adopted pursuant to Rule 12b-1 under the
1940 Act with  respect to shares,  to make  certain  payments  as  follows.  The
Principal  Underwriter  shall  be  entitled  to be  paid  by the  Fund  a  sales
commission  equal to an amount not exceeding  6.25% of the price received by the
Fund  for  each  sale  of  shares  (excluding   reinvestment  of  dividends  and
distributions),  such  payment  to be  made  in the  manner  set  forth  in this
paragraph 5. The Principal  Underwriter shall also be entitled to be paid by the
Fund a separate distribution fee (calculated in accordance with paragraph 5(d)),
such payment to be made in the manner set forth and subject to the terms of this
paragraph 5.

         (d)  The  sales  commissions  and  distribution  fees  referred  to  in
paragraph  5(c) shall be accrued and paid by the Fund in the  following  manner.
The Fund shall accrue daily an amount  calculated  at the rate of .75% per annum
of the daily net  assets of the Fund,  which net  assets  shall be  computed  as
described  in  paragraph 2. The daily  amounts so accrued  throughout  the month
shall be paid to the Principal  Underwriter  on the last day of each month.  The
amount of such daily  accrual,  as so  calculated,  shall  first be applied  and
charged to all unpaid sales commissions,  and the balance, if any, shall then be
applied and charged to all unpaid  distribution fees. No amount shall be accrued
with  respect  to  any  day  on  which  there  exist  no  outstanding  uncovered
distribution charges of the Principal Underwriter.  The amount of such uncovered
distribution   charges  shall  be  calculated   daily.   For  purposes  of  this
calculation, distribution charges of the Principal Underwriter shall include (a)
the aggregate of all sales commissions which the Principal  Underwriter has been
paid  pursuant  to this  paragraph  (d) (and  pursuant to  paragraph  (d) of the
Original  Agreement) plus all sales  commissions which it is entitled to be paid
pursuant to  paragraph  5(c) (and  pursuant to  paragraph  5(c) of the  Original
Agreement) since inception of the Original  Agreement  through and including the
day next  preceding  the date of  calculation,  and (b) an  amount  equal to the
aggregate  of all  distribution  fees  referred  to below  which  the  Principal
Underwriter  has been paid  pursuant  to this  paragraph  (d) (and  pursuant  to
paragraph (d) of the Original Agreement) plus all such fees which it is entitled
to be paid  pursuant to paragraph  5(c) (and  pursuant to paragraph  5(c) of the
Original  Agreement)  since  inception  of the  Original  Agreement  through and
including  the day  next  preceding  the  date of  calculation.  From  this  sum
(distribution  charges) there shall be subtracted (i) the aggregate  amount paid
or payable to the  Principal  Underwriter  pursuant to this  paragraph  (d) (and
pursuant to paragraph  (d) of the  Original  Agreement)  since  inception of the
Original  Agreement  through and  including  the day next  preceding the date of
calculation  and (ii) the  aggregate  amount of all  contingent  deferred  sales
charges  paid or payable to the  Principal  Underwriter  since  inception of the
Original  Agreement  through and  including  the day next  preceding the date of
calculation.  If  the  result  of  such  subtraction  is a  positive  amount,  a
distribution  fee  [computed  at the rate of 1% per annum  above the prime  rate
(being the base rate on  corporate  loans posted by at least 75% of the nation's
30 largest banks) then being reported in the Eastern  Edition of The Wall Street
Journal  or if such  prime  rate is not so  reported  such  other rate as may be
designated  from time to time by vote or other action of a majority of (i) those
Trustees of the Trust who are not "interested  persons" of the Trust (as defined
in the 1940  Act) and have no  direct  or  indirect  financial  interest  in the
operation  of  the  Plan  or any  agreements  related  to it  (the  "Rule  12b-1
Trustees")  and (ii) all of the  Trustees  then in office]  shall be computed on
such amount and added to such amount,  with the resulting sum  constituting  the
amount  of  outstanding   uncovered   distribution   charges  of  the  Principal
Underwriter with respect to such day for all purposes of this Agreement.  If the
result  of  such  subtraction  is  a  negative  amount,  there  shall  exist  no
outstanding  uncovered  distribution  charges of the Principal  Underwriter with
respect  to such day and no amount  shall be  accrued  or paid to the  Principal
Underwriter  with respect to such day. The  aggregate  amounts  accrued and paid
pursuant  to this  paragraph  (d) during  any fiscal  year of the Fund shall not
exceed .75% of the average daily net assets of the Fund for such year.

         (e)  The  Principal  Underwriter  shall  be  entitled  to  receive  all
contingent  deferred  sales  charges  paid or payable with respect to any day on
which there exist outstanding  uncovered  distribution  charges of the Principal
Underwriter.  The Fund shall be  entitled to receive  all  remaining  contingent
deferred sales charges paid or payable by  shareholders  with respect to any day
on which  there  exist no  outstanding  uncovered  distribution  charges  of the
Principal Underwriter,  provided that no such sales charge which would cause the
Fund to exceed the maximum  applicable  cap imposed  thereon by paragraph (2) of
subsection (d) of Section 26 of Article III of the Rules of Fair Practice of the
National Association of Securities Dealers, Inc. shall be imposed.

         (f) The persons  authorized to direct the disposition of monies paid or
payable  by the  Fund  pursuant  to the  Plan or  this  Agreement  shall  be the
President or any Vice President of the Trust.  Such persons shall provide to the
Trust's Trustees and the Trustees shall review,  at least  quarterly,  a written
report of the amounts so expended and the  purposes for which such  expenditures
were made.

         (g) In addition to the payments to the Principal  Underwriter  provided
for in  paragraph  5(d),  the Fund  may make  payments  of  service  fees to the
Principal Underwriter, Authorized Firms and other persons. The aggregate of such
payments  during any fiscal year of the Fund shall not exceed .25% of the Fund's
average daily net assets for such year.

         6. The Trust hereby authorizes the Principal Underwriter to repurchase,
upon the terms and  conditions  set forth in written  instructions  given by the
Trust to the Principal  Underwriter  from time to time, as agent of the Fund and
for its account,  such shares of the Fund as may be offered for sale to the Fund
from time to time.

         (a) The Principal  Underwriter  shall notify in writing IBT and TSSG at
the end of each business day, or as soon  thereafter as the  repurchases in each
pricing period have been compiled,  of the number of shares  repurchased for the
account of the Fund since the last previous report,  together with the prices at
which such repurchases were made, and upon the request of any officer or Trustee
of the Trust shall furnish similar  information  with respect to all repurchases
made up to the time of the request on any day.

         (b) The Trust  reserves  the right to suspend  or revoke the  foregoing
authorization  at any time;  unless  otherwise  stated,  any such  suspension or
revocation  shall be effective  forthwith  upon receipt of notice  thereof by an
officer of the Principal Underwriter, by telegraph or by written instrument from
an officer of the Trust duly  authorized by its Trustees.  In the event that the
authorization  of the  Principal  Underwriter  is, by the terms of such  notice,
suspended  for  more  than  twenty-four  hours  or  until  further  notice,  the
authorization given by this paragraph 6 shall not be revived except by action of
a majority of the Trustees of the Trust.

         (c) The  Principal  Underwriter  shall have the right to terminate  the
operation of this paragraph 6 upon giving to the Trust thirty (30) days' written
notice thereof.

         (d) The Trust  agrees  to  authorize  and  direct  IBT to pay,  for the
account of the Fund,  the purchase  price of any shares so  repurchased  against
delivery  of the  certificates  in proper  form for  transfer to the Fund or for
cancellation by the Fund.

         (e) The Principal Underwriter shall receive no commission in respect of
any repurchase of shares under the foregoing  authorization  and  appointment as
agent, except for any sales commission,  distribution fee or contingent deferred
sales charges payable under paragraph 5.

         (f) The  Trust  agrees  that  the Fund  will  reimburse  the  Principal
Underwriter,  from time to time on demand, for any reasonable  expenses incurred
in  connection  with the  repurchase  of  shares  of the Fund  pursuant  to this
paragraph 6.

         7. If, at any time during the  existence of this  Agreement,  the Trust
shall deem it necessary or advisable in the best  interests of the Fund that any
amendment of this Agreement be made in order to comply with the  recommendations
or requirements of the Commission or other  governmental  authority or to obtain
any  advantage  under  Massachusetts  or Federal tax laws,  and shall notify the
Principal  Underwriter  of the form of  amendment  which it deems  necessary  or
advisable and the reasons therefor,  and, if the Principal  Underwriter declines
to assent to such amendment, the Trust may terminate this Agreement forthwith by
written  notice  to the  Principal  Underwriter.  If,  at any  time  during  the
existence of its agreement upon request by the Principal Underwriter,  the Trust
fails (after a reasonable time) to make any changes in its Declaration of Trust,
as amended,  or in its methods of doing business which are necessary in order to
comply with any  requirement  of Federal law or regulations of the Commission or
of a national  securities  association of which the Principal  Underwriter is or
may be a member,  relating to the sale of the shares of the Fund,  the Principal
Underwriter  may terminate  this  Agreement  forthwith by written  notice to the
Trust.

         8. The term "net asset value" as used in this  Agreement with reference
to the shares of the Fund shall have the same meaning as used in the Declaration
of Trust,  as amended,  and calculated in the manner  referred to in paragraph 2
above.

         9(a).  The Principal  Underwriter is a corporation in the United States
organized under the laws of Massachusetts and holding membership in the National
Association of Securities  Dealers,  Inc., a securities  association  registered
under Section 15A of the  Securities  Exchange Act of 1934, as amended from time
to time,  and during the life of this  Agreement will continue to be so resident
in the  United  States,  so  organized  and a member  in good  standing  of said
Association.  The Principal Underwriter will comply with the Trust's Declaration
of Trust and  By-Laws,  and the 1940 Act and the rules  promulgated  thereunder,
insofar as they are applicable to the Principal Underwriter.

         (b) The Principal  Underwriter  shall maintain in the United States and
preserve therein for such period or periods as the Commission shall prescribe by
rules and regulations  applicable to it as Principal  Underwriter of an open-end
investment company registered under the 1940 Act such accounts,  books and other
documents as are necessary or  appropriate to record its  transactions  with the
Fund. Such accounts,  books and other documents shall be subject at any time and
from time to time to such reasonable periodic, special and other examinations by
the  Commission or any member or  representative  thereof as the  Commission may
prescribe. The Principal Underwriter shall furnish to the Commission within such
reasonable time as the Commission may prescribe  copies of or extracts from such
records which may be prepared without effort, expense or delay as the Commission
may by order require.

         10.  This  Agreement  shall  continue  in  force   indefinitely   until
terminated as in this Agreement above provided, except that:

         (a) this Agreement  shall remain in effect through and including  April
28, 1995, and shall continue in full force and effect  indefinitely  thereafter,
but only so long as such continuance is specifically  approved at least annually
(i) by the vote of a  majority  of the Rule 12b-1  Trustees  cast in person at a
meeting  called  for the  purpose  of voting on such  approval,  and (ii) by the
Trustees  of the  Trust  or by  vote of a  majority  of the  outstanding  voting
securities of the Fund;

         (b) this  Agreement may be terminated at any time by vote of a majority
of the Rule 12b-1  Trustees or by vote of a majority of the  outstanding  voting
securities of the Fund on not more than sixty (60) days' notice to the Principal
Underwriter.  The  Principal  Underwriter  shall  be  entitled  to  receive  all
contingent  deferred  sales  charges  paid or  payable  with  respect to any day
subsequent to the termination of this Agreement;

         (c) the Principal  Underwriter  shall have the right to terminate  this
Agreement  on six (6) months'  written  notice  thereof  given in writing to the
Fund; and

         (d) the  Trust  shall  have  the  right  to  terminate  this  Agreement
forthwith  in the  event  that it  shall  have  been  established  by a court of
competent jurisdiction that the Principal Underwriter or any director or officer
of the Principal  Underwriter  has taken any action which results in a breach of
the covenants set out in paragraph 9 hereof.

         11. In the event of the  assignment of this  Agreement by the Principal
Underwriter, this Agreement shall automatically terminate.

         12. Any notice under this Agreement shall be in writing,  addressed and
delivered,  or mailed postage paid, to the other party,  at such address as such
other party may designate for the receipt of such notices.  Until further notice
to the other party,  it is agreed that the record  address of the Trust and that
of the Principal Underwriter,  shall be 24 Federal Street, Boston, Massachusetts
02110.

         13. The services of the Principal Underwriter to the Fund hereunder are
not to be deemed to be exclusive,  the Principal  Underwriter  being free to (a)
render  similar  service to, and to act as principal  underwriter  in connection
with  the  distribution  of  shares  of,  other  series  of the  Trust  or other
investment companies,  and (b) engage in other business and activities from time
to time.

         14.  The  terms  "vote  of  a  majority  of  the   outstanding   voting
securities," "assignment" and "interested persons," when used herein, shall have
the respective  meanings  specified in the 1940 Act, subject,  however,  to such
exemptions as may be granted by the Commission by any rule, regulation or order.

         15. The Principal Underwriter  expressly  acknowledges the provision in
the  Trust's  Declaration  of  Trust  limiting  the  personal  liability  of the
shareholders of the Fund or the Trustees of the Trust. The Principal Underwriter
hereby  agrees that it shall have  recourse to the Trust or the Fund for payment
of claims or  obligations  as  between  the Trust or the Fund and the  Principal
Underwriter  arising out of this Agreement and shall not seek  satisfaction from
the  shareholders  or any  shareholder  of the Trust or from the Trustees or any
Trustee of the Trust.  The Fund shall not be responsible  for obligations of any
other series of the Trust.

         16. All references in this Agreement to the "Original  Agreement" shall
mean the  Distribution  Agreement  dated  October 28, 1993  between the Trust on
behalf of the Fund and the Principal Underwriter.

         17. This  Agreement  shall amend,  replace and be  substituted  for the
Original  Agreement as of the opening of business on January 30, 1995,  and this
Agreement  shall  be  effective  as of  such  time.  The  outstanding  uncovered
distribution charges of the Principal Underwriter  calculated under the Original
Agreement  as of the  close  of  business  on  January  29,  1995  shall  be the
outstanding   uncovered   distribution  charges  of  the  Principal  Underwriter
calculated  under this  Agreement  as of the  opening of business on January 30,
1995.

         IN WITNESS WHEREOF, the parties hereto have entered into this Agreement
on the 27th day of January, 1995.

                                        EATON VANCE GOVERNMENT OBLIGATIONS TRUST
                                        (on behalf of EV CLASSIC GOVERNMENT
                                        OBLIGATIONS FUND)

                                        By /s/M. Dozier Gardner
                                        ----------------------------------------
                                                    President

                                        EATON VANCE DISTRIBUTORS INC.

                                        By /s/Wharton P. Whitaker
                                        ----------------------------------------
                                                    President


                                                                   EXHIBIT 11(A)


                       CONSENT OF INDEPENDENT ACCOUNTANTS

We  consent  to  the  inclusion  in  Post-Effective  Amendment  No.  22  to  the
Registration  Statement  on Form N-1A (1933 Act File  Number  2-90946)  of Eaton
Vance Government  Obligations Trust: EV Classic Government Obligations Fund (the
"Fund")  of our  report  dated  February  3, 1995 on our audit of the  financial
statements and financial highlights of the Fund and of our report dated February
3, 1995 on our  audit of the  financial  statements  and  supplementary  data of
Government Obligations Portfolio which reports are included in the Annual Report
to Shareholders  for the year ended December 31, 1994,  which is incorporated by
reference in this  Registration  Statement.

We also  consent to the  reference  to our Firm under the  caption  "The  Fund's
Financial  Highlights"  in the  Prospectus  and under the  caption  "Independent
Accountants"  in the Statement of  Additional  Information  of the  Registration
Statement.


                                          /s/ COOPERS & LYBRAND L.L.P.
                                              -----------------------------
                                              COOPERS & LYBRAND L.L.P.

Boston, Massachusetts
April 24, 1995




                                                                   EXHIBIT 11(B)
                       CONSENT OF INDEPENDENT ACCOUNTANTS

We  consent  to  the  inclusion  in  Post-Effective  Amendment  No.  22  to  the
Registration  Statement  on Form N-1A (1933 Act File  Number  2-90946)  of Eaton
Vance Government Obligations Trust: EV Marathon Government Obligations Fund (the
"Fund")  of our  report  dated  February  3, 1995 on our audit of the  financial
statements and financial highlights of the Fund and of our report dated February
3, 1995 on our  audit of the  financial  statements  and  supplementary  data of
Government Obligations Portfolio which reports are included in the Annual Report
to Shareholders  for the year ended December 31, 1994,  which is incorporated by
reference in this Registration Statement.

We also  consent to the  reference  to our Firm under the  caption  "The  Fund's
Financial  Highlights"  in the  Prospectus  and under the  caption  "Independent
Accountants"  in the Statement of  Additional  Information  of the  Registration
Statement.

                                          /s/ COOPERS & LYBRAND L.L.P.
                                              -----------------------------
                                              COOPERS & LYBRAND L.L.P.

Boston, Massachusetts
April 24, 1995




                                                                   EXHIBIT 11(C)

                       CONSENT OF INDEPENDENT ACCOUNTANTS
We  consent  to  the  inclusion  in  Post-Effective  Amendment  No.  22  to  the
Registration  Statement  on Form N-1A (1933 Act File  Number  2-90946)  of Eaton
Vance Government  Obligations Trust: EV Traditional  Government Obligations Fund
(the "Fund") of our report dated  February 3, 1995 on our audit of the financial
statements and financial highlights of the Fund and our report dated February 3,
1995  on our  audit  of the  financial  statements  and  supplementary  data  of
Government Obligations Portfolio which reports are included in the Annual Report
to Shareholders  for the year ended December 31, 1994,  which is incorporated by
reference in this  Registration  Statement.

We also  consent to the  reference  to our Firm under the  caption  "The  Fund's
Financial  Highlights"  in the  Prospectus  and under the  caption  "Independent
Accountants"  in the Statement of  Additional  Information  of the  Registration
Statement.

                                          /s/ COOPERS & LYBRAND L.L.P.
                                              -----------------------------
                                              COOPERS & LYBRAND L.L.P.

Boston, Massachusetts
April 24, 1995


                    EATON VANCE GOVERNMENT OBLIGATIONS TRUST

                           AMENDED DISTRIBUTION PLAN

                                  ON BEHALF OF

                     EV CLASSIC GOVERNMENT OBLIGATIONS FUND


         WHEREAS, Eaton Vance Government Obligations Trust (the "Trust") engages
in  business as an  open-end  investment  company  with  multiple  series and is
registered  as such under the  Investment  Company Act of 1940,  as amended (the
"Act");

         WHEREAS, the Trust adopted a separate  Distribution Plan (the "Original
Plan") on behalf of its  series,  EV Classic  Government  Obligations  Fund (the
"Fund"),  pursuant to which the Fund has made  payments in  connection  with the
distribution of shares of the Fund;

         WHEREAS,  the Trust  employs Eaton Vance  Distributors,  Inc. to act as
Principal  Underwriter  (as defined in the Act) of shares of the Fund,  but does
not  intend  to  remunerate  the  Principal  Underwriter  unless  and  until the
Principal Underwriter sells shares of the Fund;

         WHEREAS, the Fund will pay the Principal  Underwriter sales commissions
and distribution fees only in connection with the sale of shares of the Fund;

         WHEREAS,  the Fund  intends  to pay  service  fees as  contemplated  in
subsections  (b) and (d) of  Section  26 of  Article  III of the  Rules  of Fair
Practice of the National  Association  of  Securities  Dealers,  Inc. (the "NASD
Rules");

         WHEREAS, the Trustees of the Trust have determined that it is desirable
to amend and replace the Original Plan with this Amended Distribution Plan; and

         WHEREAS,  the  Trustees  of the Trust have  determined  that there is a
reasonable  likelihood  that  adoption of this  Amended  Distribution  Plan will
benefit the Fund and its shareholders.

         NOW, THEREFORE,  the Trust hereby adopts this Amended Distribution Plan
(this "Plan") on behalf of the Fund in accordance  with Rule 12b-1 under the Act
and containing the following terms and conditions:

         1. The Fund will pay sales  commissions  and  distribution  fees to the
Principal  Underwriter  only after and as a result of the sales of shares of the
Fund.  The Principal  Underwriter  will provide the Fund with such  distribution
services and facilities as the Trust may from time to time consider necessary to
accomplish  the sale of shares of the Fund. It is understood  that the Principal
Underwriter  may pay such  sales  commissions  and make such other  payments  to
Authorized  Firms and other  persons as it  considers  appropriate  to encourage
distribution of such shares.

         2. On each sale of Fund shares (excluding reinvestment of dividends and
distributions),  the Fund shall pay the Principal Underwriter a sales commission
in an amount not  exceeding  6.25% of the price  received by the Fund  therefor,
such payment to be made in the manner set forth and subject to the terms of this
Plan. The amount of the sales  commission shall be established from time to time
by vote or other action of a majority of (i) those Trustees of the Trust who are
not "interested persons" (as defined in the Act) of the Trust and have no direct
or indirect  financial  interest in the operation of this Plan or any agreements
related to it (the "Rule 12b-1  Trustees")  and (ii) all of the Trustees then in
office.   The  Fund  shall  also  pay  the  Principal   Underwriter  a  separate
distribution  fee  (calculated in accordance with Section 3), such payment to be
made in the manner set forth and subject to the terms of this Plan.

         3. The sales commissions and distribution fees referred to in Section 2
shall be accrued and paid by the Fund in the  following  manner.  The Fund shall
accrue daily an amount calculated at the rate of .75% per annum of the daily net
assets of the Fund,  which net assets shall be computed in  accordance  with the
governing  documents of the Trust and applicable votes and determinations of the
Trustees of the Trust.  The daily amounts so accrued  throughout the month shall
be paid to the Principal  Underwriter on the last day of each month.  The amount
of such daily accrual,  as so calculated,  shall first be applied and charged to
all unpaid sales commissions, and the balance, if any, shall then be applied and
charged to all unpaid distribution fees. No amount shall be accrued with respect
to any day on which there exist no outstanding uncovered distribution charges of
the Principal  Underwriter.  The amount of such uncovered  distribution  charges
shall be  calculated  daily.  For  purposes  of this  calculation,  distribution
charges of the  Principal  Underwriter  shall  include (a) the  aggregate of all
sales commissions which the Principal Underwriter has been paid pursuant to this
Section 3 (and  pursuant  to  Section  3 of the  Original  Plan)  plus all sales
commissions  which it is entitled to be paid pursuant to Section 2 (and pursuant
to Section 2 of the Original Plan) since  inception of the Original Plan through
and including the day next preceding the date of calculation,  and (b) an amount
equal to the  aggregate  of all  distribution  fees  referred to below which the
Principal  Underwriter has been paid pursuant to this Section 3 (and pursuant to
Section 3 of the  Original  Plan) plus all such fees which it is  entitled to be
paid  pursuant  to Section 2 (and  pursuant to Section 2 of the  Original  Plan)
since  inception  of the  Original  Plan  through  and  including  the day  next
preceding the date of calculation.  From this sum  (distribution  charges) there
shall be subtracted  (i) the  aggregate  amount paid or payable to the Principal
Underwriter  pursuant  to this  Section  3 (and  pursuant  to  Section  3 of the
Original  Plan) since  inception of the Original  Plan through and including the
day next preceding the date of calculation and (ii) the aggregate  amount of all
contingent  deferred sales charges paid or payable to the Principal  Underwriter
since  inception  of the  Original  Plan  through  and  including  the day  next
preceding  the date of  calculation.  If the  result  of such  subtraction  is a
positive  amount, a distribution fee [computed at the rate of 1% per annum above
the prime rate (being the base rate on corporate loans posted by at least 75% of
the nation's 30 largest banks) then being reported in the Eastern Edition of The
Wall Street  Journal or if such prime rate is not so reported such other rate as
may be designated from time to time by vote or other action of a majority of (i)
the Rule 12b-1  Trustees and (ii) all of the Trustees  then in office]  shall be
computed  on such  amount  and  added to such  amount,  with the  resulting  sum
constituting  the amount of outstanding  uncovered  distribution  charges of the
Principal Underwriter with respect to such day for all purposes of this Plan. If
the  result of such  subtraction  is a negative  amount,  there  shall  exist no
outstanding  uncovered  distribution  charges of the Principal  Underwriter with
respect  to such day and no amount  shall be  accrued  or paid to the  Principal
Underwriter  with respect to such day. The  aggregate  amounts  accrued and paid
pursuant  to this  Section 3 during any fiscal year of the Fund shall not exceed
.75% of the average daily net assets of the Fund for such year.

         4.  The  Principal   Underwriter  shall  be  entitled  to  receive  all
contingent  deferred  sales  charges  paid or payable with respect to any day on
which there exist outstanding  uncovered  distribution  charges of the Principal
Underwriter.  The Fund shall be  entitled to receive  all  remaining  contingent
deferred sales charges paid or payable by  shareholders  with respect to any day
on which  there  exist no  outstanding  uncovered  distribution  charges  of the
Principal Underwriter,  provided that no such sales charge which would cause the
Fund to exceed the maximum  applicable  cap imposed  thereon by paragraph (2) of
subsection (d) of Section 26 of Article III of the NASD Rules shall be imposed.

         5.  The  Fund  may  make  payments  of  service  fees to the  Principal
Underwriter,  Authorized Firms and other persons. The aggregate of such payments
during any fiscal year of the Fund shall not exceed  .25% of the Fund's  average
daily net assets for such year.  Appropriate  adjustment of service fee payments
shall be made whenever  necessary to ensure that no such payment shall cause the
Fund to exceed the  applicable  maximum cap imposed  thereon by paragraph (5) of
subsection (d) of Section 26 of Article III of the NASD Rules.

         6. This Plan shall not take effect until after it has been  approved by
both a majority of (i) the Rule 12b-1 Trustees and (ii) all of the Trustees then
in office,  cast in person at a meeting (or meetings)  called for the purpose of
voting on this Plan.

         7. Any  agreements  between  the  Trust on  behalf  of the Fund and any
person relating to this Plan shall be in writing and shall not take effect until
approved in the manner provided for Trustee approval of this Plan in Section 6.

         8. This Plan shall continue in effect  through and including  April 28,
1995, and shall continue in effect indefinitely thereafter, but only for so long
as such  continuance  after  April 28,  1995 is  specifically  approved at least
annually in the manner provided for Trustee approval of this Plan in Section 6.

         9. The persons  authorized to direct the  disposition of monies paid or
payable  by the Fund  pursuant  to this Plan or any  related  agreement  made on
behalf of the Fund shall be the  President  or any Vice  President of the Trust.
Such persons shall  provide to the Trustees of the Trust and the Trustees  shall
review, at least quarterly,  a written report of the amounts so expended and the
purposes for which such expenditures were made.

         10.  This Plan may be  terminated  at any time by vote of a majority of
the Rule 12b-1  Trustees,  or by vote of a majority  of the  outstanding  voting
securities  of the Fund.  The  Principal  Underwriter  shall also be entitled to
receive all  contingent  deferred  sales charges paid or payable with respect to
any day subsequent to termination of this Plan on which there exist  outstanding
uncovered distribution charges of the Principal Underwriter.

         11. This Plan may not be amended to increase materially the payments to
be made by the Fund as provided in Sections 2, 3 and 5 unless such  amendment is
approved by a vote of at least a majority of the outstanding  voting  securities
of the Fund. In addition, all material amendments to this Plan shall be approved
in the manner provided for Trustee approval of this Plan in Section 6.

         12. While this Plan is in effect,  the selection and  nomination of the
Rule 12b-1  Trustees  shall be  committed  to the  discretion  of the Rule 12b-1
Trustees.

         13.  The Trust  shall  preserve  copies  of this  Plan and any  related
agreements made by the Trust on behalf of the Fund and all reports made pursuant
to  Section  9, for a period of not less  than six  years  from the date of this
Plan, or of the agreements or of such report,  as the case may be, the first two
years in an easily accessible place.

         14. Consistent with the limitation of shareholder,  officer and Trustee
liability  as set forth in the Trust's  Declaration  of Trust,  any  obligations
assumed by the Fund  pursuant  to this Plan shall be limited in all cases to the
assets  of the Fund and no  person  shall  seek  satisfaction  thereof  from the
shareholders of the Trust, officers or Trustees of the Trust or any other series
of the Trust.

         15. When used in this Plan, the term "service fees" shall have the same
meaning as such term has in subsections (b) and (d) of Section 26 of Article III
of the NASD Rules.  When used in this Plan,  the term "vote of a majority of the
outstanding  voting securities of the Fund" shall mean the vote of the lesser of
(a) 67 per centum or more of the shares of the Fund  present or  represented  by
proxy  at the  meeting  if the  holders  of  more  than  50  per  centum  of the
outstanding  shares  of the  Fund are  present  or  represented  by proxy at the
meeting, or (b) more than 50 per centum of the outstanding shares of the Fund.

         16. If any  provision  of this Plan shall be held or made  invalid by a
court  decision,  statute,  rule or  regulation of the  Securities  and Exchange
Commission  or  otherwise,  the  remainder  of this Plan  shall not be  affected
thereby.

         17. This Plan shall amend,  replace and be substituted for the Original
Plan as of the  opening of  business  on January 30, 1995 and this Plan shall be
effective as of such time. The outstanding uncovered distribution charges of the
Principal  Underwriter  calculated  under the  Original  Plan as of the close of
business  on January 29, 1995 shall be the  outstanding  uncovered  distribution
charges  of the  Principal  Underwriter  calculated  under  this  Plan as of the
opening of business on January 30, 1995.

         IN WITNESS  WHEREOF,  the Trust has executed this Plan on behalf of the
Fund on the 27th day of January, 1995.

                                        EATON VANCE GOVERNMENT OBLIGATIONS TRUST
                                        (on behalf of EV CLASSIC GOVERNMENT
                                        OBLIGATIONS FUND)


                                        BY    /s/M. Dozier Gardner
                                        ----------------------------------
                                                 President
Attest:

  /s/Thomas Otis
- ----------------------------
          Secretary

<PAGE>

                                   Exhibit 16

                     EV CLASSIC GOVERNMENT OBLIGATIONS FUND
                              CALCULATION OF YIELD

                        For the 30 days ended 12/31/94:

                                 Interest Income Earned:          $266,499
  Plus                           Dividend Income Earned:
                                                                ----------
  Equal                                    Gross Income:          $266,499

  Minus                                        Expenses:          $105,316
                                                                ----------
  Equal                           Net Investment Income:          $161,183

  Divided by             Average daily number of shares
                         outstanding that were entitled
                                   to receive dividends:         4,629,583
                                                                ----------
   Equal         Net Investment Income Earned Per Share:           $0.0348

              Maximum Offering Price Per Share 12/31/94:             $8.98

                                          30 Day Yield*:              4.70%

*  Yield is calculated on a bond equivalent rate as follows:
                             6
             2[(($0.0348/$8.98)+1) -1]

<PAGE>
<TABLE>
                                                                                                                     EXHIBIT 16

EV CLASSIC GOVERNMENT OBLIGATIONS FUND
INVESTMENT PERFORMANCE

The table below indicates the total return (capital changes plus reinvestment of
all  distributions) on a hypothetical  investment of $1,000 in the Fund covering
the  life  of the  fund  ending  December  31,  1994.  Past  performance  is not
indicative  of future  results.  Investment  return  and  principal  value  will
fluctuate  and  shares,  when  redeemed,  may be worth  more or less than  their
original cost.

 <CAPTION>
                                                 NUMBER OF
                                                 SHARES GAINED                                         TOTAL
                                        NAV      THROUGH           TOTAL                               RETURN
INVEST-    INVEST-   AMT OF   NUMBER    DATE OF  REINVESTMENT OF   NUMBER OF    12/31/94   12/31/94    THROUGH
MENT        MENT     INVEST-  OF SHARES INVEST-  ALL DISTRIBUTIONS SHARES AS    NET ASSET  VALUE OF    12/31/94
PERIOD      DATE     MENT     PURCHASED MENT     THROUGH 12/31/94  OF 12/31/94  VALUE +    INVESTMENT  CUMULATIVE^   ANNUALIZED ++
<S>        <C>       <C>      <C>       <C>      <C>               <C>          <C>        <C>         <C>           <C>

LIFE OF    11/01/93  $1,000   100.000   $10.00   8.898             108.898      $8.98      $977.90     -2.21%        -1.90%
THE FUND
(1.16 YR)

1 YEAR
ENDING     12/31/93  $1,000   100.604   $9.94    7.922             108.526      $8.98      $974.56     -2.54%        -2.54%
12/31/94


^   Cumulative  total return (net asset value to net asset value) is  calculated
    by dividing  the  cumulative  net asset value on 12/31/94 by the initial net
    asset value.

+   12/31/94 Net Asset Value is an unaudited figure.

++  Average annual total return is the average annual  compounded rate of return
    based on the  cumulative  value for each period.  It is calculated by taking
    the nth root of 1 + the  cumulative  total  return,  where n = the number of
    years invested.

 </TABLE>


<PAGE>

                     EV CLASSIC GOVERNMENT OBLIGATIONS FUND


                        CALCULATION OF DISTRIBUTION RATE
                        AND EFFECTIVE DISTRIBUTION RATE
                                 AS OF 12/31/94



                               DISTRIBUTION RATE

   Annualize
   Most Recent
   Monthly           : (  $0.051164400  /  30)   x   365
   Distribution

   Divide by
   Current Maximum   :    $8.98
   Offering Price

   Distribution
   Rate Equals       :     0.0693          ( or 6.93% )





                          EFFECTIVE DISTRIBUTION RATE


   Divide
   Distribution      :     0.0693
   Rate by 365/30          ------   +    1
   ( or 12.167 )           12.167
   and Add1.

   The Resulting
   Number Equals     :     1.0057

   Take this
   Number to the                      12.167
   365/30th ( or     :     (  1.0026 )      -    1
   12.167 ) power
   and Subtract 1.


   Effective
   Distribution   :         0.0716         ( or 7.16% )
   Rate Equals
<PAGE>
                                                                  Exhibit 16



                           EV MARATHON GOVERNMENT OBLIGATIONS FUND              
                                  CALCULATION OF YIELD 



                             For the 30 days ended 12/31/94:

                                     Interest Income Earned:           $552,671 
         Plus                        Dividend Income Earned:
                                                                     ---------- 
         Equal                                 Gross Income:           $552,671 

         Minus                                     Expenses:           $186,738 
                                                                     ---------- 
         Equal                        Net Investment Income:           $365,933 

         Divided by           Average daily number of shares
                              outstanding that were entitled
                                       to receive dividends:          9,606,293 
                                                                     ---------- 
         Equal       Net Investment Income Earned Per Share:            $0.0381 

                  Maximum Offering Price Per Share 12/31/94:              $8.99 

                                              30 Day Yield*:              5.14% 

         *  Yield is calculated on a bond equivalent rate as follows:           
                                  6  
             2[(($0.0381/$8.99)+1) -1]        
<PAGE>
<TABLE>
EV MARATHON GOVERNMENT OBLIGATIONS FUND                                                                                  
INVESTMENT PERFORMANCE                                                                                                            
                                                                                                                                  
The table below indicates the total return (capital changes plus reinvestment of all distributions) on a hypothetical investment of 
$1,000 in the Fund covering the life of the Fund ending December 31, 1994.  Past performance is not indicative of future results.  
Investment return and principal value will fluctuate and shares, when redeemed, may be worth more or less than their original cost.
<CAPTION>


                                                                                                    TOTAL           TOTAL
                                                                                                    RETURN          RETURN
                                              NO. OF SHARES                     12/31/94  12/31/94  THROUGH         THOUGH
                                              GAINED THROUGH                    VALUE OF  VALUE OF  12/31/94        12/31/94
                                              REINVESTMENT    TOTAL             INVEST-   INVEST-   BEFORE          AFTER
                            NO. OF   NAV ON   OF ALL          NO. OF            MENT      MENT      DEDUCTING       DEDUCTING
INVEST-   INVEST-  AMT OF   SHARES   DATE OF  DISTRIBUTIONS   SHARES            BEFORE    AFTER     THE CDSC        THE CDSC *
MENT      MENT     INVEST-  PUR-     INVEST-  THROUGH         AS OF    12/31/94 DEDUCTING DEDUCTING
PERIOD    DATE     MENT     CHASED   MENT     12/31/94        12/31/94 NAV+     THE CDSC  THE CDSC* CUMUL^  ANN++   CUMUL^^ ANN++
<S>       <C>      <C>      <C>      <C>         <C>          <C>      <C>      <C>       <C>       <C>     <C>     <C>     <C>

LIFE OF   11/01/93 $1,000   100.000  $10.00      9.184        109.184  $8.99    $981.56   $936.61   -1.84%  -1.59%  -6.34%  -5.47%
THE FUND                                                                                                                          
(1.16 YRS)                                                                                                                      
                                                                                                                                  
1 YEAR                                                                                                                            
ENDING    12/31/93 $1,000   100.705  $9.93       8.205        108.910  $8.99    $979.10   $933.83   -2.09%  -2.09%  -6.62%  -6.62% 
12/31/94                                                                                                                          
                                                                                                                                  
                                                                                                                                  
                                                                                                                                  
                                                                                                                                  
                                                                                                                                  
     *  No contingent deferred sales charge (CDSC) is imposed on shares purchased more than six years prior to the redemption,
        shares acquired through the reinvestment of dividends and distributions and any appreciation in value of other shares in
        the account, and no such charge is imposed on exchanges of fund shares for shares of one or more other funds in the Eaton
        Vance Marathon Group of Funds.
                                                                                                                                  
     ^  Cumulative total return (net asset value to net asset value) is calculated by dividing the cumulative net asset value on 
        12/31/94 by the initial net asset value.
                                                                                                                                  
    ^^  Cumulative total return (net asset value to net asset value) is calculated by dividing the cumulative net asset value on 
        12/31/94 by the initial net asset value and subtracting the CDSC.
                                                                                                                                  
     +  12/31/94 Net Asset Value is an unaudited figure                                                                           
                                                                                                                                  
    ++  Average annual total return is the average annual compounded rate of return based on the cumulative value for each period. 
        It is calculated by taking the nth root of 1 + the cumulative total return, where n = the number of years invested.     
</TABLE>
<PAGE>

              EV MARATHON GOVERNMENT OBLIGATIONS FUND


                 CALCULATION OF DISTRIBUTION RATE
                  AND EFFECTIVE DISTRIBUTION RATE
                          AS OF 12/31/94



                        DISTRIBUTION RATE

   Annualize
   Most Recent
   Monthly           : (  $0.053424660  /  30)   x   365 
   Distribution

   Divide by 
   Current Maximum   :    $8.99 
   Offering Price

   Distribution
   Rate Equals       :     0.0723          ( or 7.23% )





                 EFFECTIVE DISTRIBUTION RATE


   Divide
   Distribution      :     0.0723 
   Rate by 365/30          ------   +    1 
   ( or 12.167 )           12.167 
   and Add 1.

   The Resulting
   Number Equals     :     1.0059 

   Take this
   Number to the                      12.167
   365/30th ( or     :     (  1.0059 )      -    1 
   12.167 ) power
   and Subtract 1.


   Effective
   Distribution   :         0.0748         ( or 7.48% )
   Rate Equals 
<PAGE>
                                                         Exhibit 16



                           EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND          
                                  CALCULATION OF YIELD 



                             For the 30 days ended 12/31/94:

                                     Interest Income Earned:         $2,526,653
         Plus                        Dividend Income Earned:
                                                                     ----------
         Equal                                 Gross Income:         $2,526,653

         Minus                                     Expenses:           $631,128 
                                                                     ---------- 
         Equal                        Net Investment Income:         $1,895,525 

         Divided by           Average daily number of shares
                              outstanding that were entitled
                                       to receive dividends:         37,833,260 
                                                                     ---------- 
         Equal       Net Investment Income Earned Per Share:            $0.0501 

                  Maximum Offering Price Per Share 12/31/94:             $10.94 

                                              30 Day Yield*:              5.56% 

         *  Yield is calculated on a bond equivalent rate as follows:           
                                  6  
             2[(($0.0501/$10.94)+1) -1]       
<PAGE>
<TABLE>
EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND                                                                                        
INVESTMENT PERFORMANCE                                                                                                            
                                                                                                                                  
The table below indicates the total return (capital changes plus reinvestment of all distributions) on a hypothetical investment of
$1,000 in the Fund covering the ten, five, and one year periods ending December 31, 1994.  Past performance is not indicative of
future results.  Investment return and principal value will fluctuate and shares, when redeemed, may be worth more or less than 
their original cost.                                                                                            
<CAPTION>

                                                    DOLLAR
                                                    VALUE ON  NUMBER
                                                    DATE OF   OF SHARES                                               TOTAL    
                                                    INVEST-   GAINED                         ENDING     TOTAL         RETURN
                         OFFER                      MENT      THROUGH                        REDEEMABLE RETURN        THROUGH
                         PRICE                      (INITIAL  REINVESTMENT TOTAL             DOLLAR     THROUGH       12/31/94
                         ON       NO. OF   NAV ON   INVEST-   OF ALL DIS-  NO. OF            VALUE      12/31/94      (MAX OFFERING
INVEST-  INVEST- AMT OF  DAY OF   SHARES   DATE OF  MENT LESS TRIBUTIONS   SHARES            OF INVEST- (NAV TO NAV)  PRICE TO NAV)
MENT     MENT    INVEST- INVEST-  PUR-     INVEST-  THE SALES THROUGH      AS OF    12/31/94 MENT ON  
PERIOD   DATE    MENT    MENT     CHASED   MENT     CHARGE*)  12/31/94     12/31/94 NAV+     12/31/94   CUMUL^ ANN++  CUMUL^^ ANN++
<S>      <C>      <C>    <C>      <C>      <C>       <C>       <C>         <C>      <C>      <C>       <C>     <C>    <C>     <C>

10 YRS
ENDING   12/31/84 $1,000 $12.83   77.942   $12.22    $952.45   130.961     208.903  $10.42   $2,176.77 128.54% 8.62%  117.69% 8.09%
12/31/94                                                                                                                       
                                                                                                                   
5 YRS                                                                                                                        
ENDING   12/31/89 $1,000 $12.09   82.713   $11.52    $952.85   45.784      128.497  $10.42   $1,338.94 40.52%  7.04%  33.84%  6.00%
12/31/94                                                                                                                          
                                                                                                                                  
1 YR                                                                                                                              
ENDING   12/31/93 $1,000 $12.05   82.988   $11.48    $952.70   6.587       89.575   $10.42   $933.37   -2.03%  -2.03% -6.68%  -6.68%
12/31/94                                                                                                                          
                                                                                                                                  
     *  Reflects the current maximum sales charge of 4.75%.
                                                                                                                                  
     ^  Cumulative total return (offering price to net asset value) is calculated by dividing the ending dollar amount on
        12/31/94 by the initial net asset value.
                                                                                                                                  
    ^^  Cumulative total return (net asset value to net asset value) is calculated by dividing the ending dollar amount on      
        12/31/94 by the initial investment less the sales charge.        
                                                                                                                                  
     +  12/31/94 Net Asset Value is an unaudited figure                                                                           
                                                                                                                                  
    ++  Average annual total return is the average annual compounded rate of return based on the cumulative value for each period. 
        It is calculated by taking the nth root of 1 + the cumulative total return, where n = the number of years invested.     
</TABLE>
<PAGE>

             EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND


                 CALCULATION OF DISTRIBUTION RATE
                  AND EFFECTIVE DISTRIBUTION RATE
                          AS OF 12/31/94



                        DISTRIBUTION RATE

   Annualize
   Most Recent
   Monthly           : (  $0.066575370  /  30)   x   365 
   Distribution

   Divide by 
   Current Maximum   :    $10.94
   Offering Price

   Distribution
   Rate Equals       :     0.0740          ( or 7.40% )





                 EFFECTIVE DISTRIBUTION RATE


   Divide
   Distribution      :     0.0740 
   Rate by 365/30          ------   +    1 
   ( or 12.167 )           12.167 
   and Add 1.

   The Resulting
   Number Equals     :     1.0061 

   Take this
   Number to the                      12.167
   365/30th ( or     :     (  1.0061 )      -    1 
   12.167 ) power
   and Subtract 1.


   Effective
   Distribution   :         0.0766         ( or 7.66% )
   Rate Equals 

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE>       6 
<CIK> 0000745463  
<NAME> EATON VANCE GOVERNMENT OBLIGATIONS TRUST 
<SERIES> 
   <NUMBER> 3    
   <NAME> EV CLASSIC GOVERNMENT OBLIGATIONS FUND
   <MULTIPLIER> 1000 
         
<S>                             <C> 
<PERIOD-TYPE>                   12-MOS        
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-END>                               DEC-31-1994   
<INVESTMENTS-AT-COST>                  44773 
<INVESTMENTS-AT-VALUE>                 40684 
<RECEIVABLES>                            218 
<ASSETS-OTHER>                            18 
<OTHER-ITEMS-ASSETS>                       0 
<TOTAL-ASSETS>                         40920 
<PAYABLE-FOR-SECURITIES>                   0 
<SENIOR-LONG-TERM-DEBT>                    0 
<OTHER-ITEMS-LIABILITIES>                1334 
<TOTAL-LIABILITIES>                      1334 
<SENIOR-EQUITY>                            0 
<PAID-IN-CAPITAL-COMMON>                44379 
<SHARES-COMMON-STOCK>                    4407 
<SHARES-COMMON-PRIOR>                    3000 
<ACCUMULATED-NII-CURRENT>                  0 
<OVERDISTRIBUTION-NII>                     (72) 
<ACCUMULATED-NET-GAINS>                    (632) 
<OVERDISTRIBUTION-GAINS>                   0 
<ACCUM-APPREC-OR-DEPREC>                (4089) 
<NET-ASSETS>                           39586 
<DIVIDEND-INCOME>                          0 
<INTEREST-INCOME>                          0 
<OTHER-INCOME>                           3888 
<EXPENSES-NET>                            670 
<NET-INVESTMENT-INCOME>                  3218 
<REALIZED-GAINS-CURRENT>                (730)
<APPREC-INCREASE-CURRENT>               (4055) 
<NET-CHANGE-FROM-OPS>                   (1567) 
<EQUALIZATION>                             0 
<DISTRIBUTIONS-OF-INCOME>                3218 
<DISTRIBUTIONS-OF-GAINS>                   0 
<DISTRIBUTIONS-OTHER>                     430 
<NUMBER-OF-SHARES-SOLD>                  8155 
<NUMBER-OF-SHARES-REDEEMED>              5751 
<SHARES-REINVESTED>                      248 
<NET-CHANGE-IN-ASSETS>                  27360 
<ACCUMULATED-NII-PRIOR>                    0 
<ACCUMULATED-GAINS-PRIOR>                  0 
<OVERDISTRIB-NII-PRIOR>                    0 
<OVERDIST-NET-GAINS-PRIOR>                 0 
<GROSS-ADVISORY-FEES>                      0 
<INTEREST-EXPENSE>                         0 
<GROSS-EXPENSE>                          670 
<AVERAGE-NET-ASSETS>                   47787 
<PER-SHARE-NAV-BEGIN>                   9.94 
<PER-SHARE-NII>                            0 
<PER-SHARE-GAIN-APPREC>                    0 
<PER-SHARE-DIVIDEND>                       0 
<PER-SHARE-DISTRIBUTIONS>              0.63 
<RETURNS-OF-CAPITAL>                       0 
<PER-SHARE-NAV-END>                     8.98 
<EXPENSE-RATIO>                       2.15 
<AVG-DEBT-OUTSTANDING>                     0 
<AVG-DEBT-PER-SHARE>                       0 
         

</TABLE>

<TABLE> <S> <C>

<ARTICLE>       6 
<CIK> 0000745463  
<NAME> EATON VANCE GOVERNMENT OBLIGATIONS TRUST 
<SERIES> 
   <NUMBER> 2    
   <NAME> EV MARATHON GOVERNMENT OBLIGATIONS FUND
   <MULTIPLIER> 1000 
         
<S>                             <C> 
<PERIOD-TYPE>                   12-MOS        
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-END>                               DEC-31-1994   
<INVESTMENTS-AT-COST>                  91123 
<INVESTMENTS-AT-VALUE>                 86291 
<RECEIVABLES>                            708 
<ASSETS-OTHER>                            19 
<OTHER-ITEMS-ASSETS>                       0 
<TOTAL-ASSETS>                         87018 
<PAYABLE-FOR-SECURITIES>                   0 
<SENIOR-LONG-TERM-DEBT>                    0 
<OTHER-ITEMS-LIABILITIES>                1083 
<TOTAL-LIABILITIES>                      1083 
<SENIOR-EQUITY>                            0 
<PAID-IN-CAPITAL-COMMON>                91513 
<SHARES-COMMON-STOCK>                    9555 
<SHARES-COMMON-PRIOR>                    2110 
<ACCUMULATED-NII-CURRENT>                  0 
<OVERDISTRIBUTION-NII>                     (119) 
<ACCUMULATED-NET-GAINS>                    (627) 
<OVERDISTRIBUTION-GAINS>                   0 
<ACCUM-APPREC-OR-DEPREC>                (4832) 
<NET-ASSETS>                           85935 
<DIVIDEND-INCOME>                          0 
<INTEREST-INCOME>                          0 
<OTHER-INCOME>                           5023 
<EXPENSES-NET>                            663 
<NET-INVESTMENT-INCOME>                  4360 
<REALIZED-GAINS-CURRENT>                (698)
<APPREC-INCREASE-CURRENT>               (4789) 
<NET-CHANGE-FROM-OPS>                   (1127) 
<EQUALIZATION>                             0 
<DISTRIBUTIONS-OF-INCOME>                4360 
<DISTRIBUTIONS-OF-GAINS>                   0 
<DISTRIBUTIONS-OTHER>                     493 
<NUMBER-OF-SHARES-SOLD>                  9308 
<NUMBER-OF-SHARES-REDEEMED>              2056 
<SHARES-REINVESTED>                      192 
<NET-CHANGE-IN-ASSETS>                  64984 
<ACCUMULATED-NII-PRIOR>                    0 
<ACCUMULATED-GAINS-PRIOR>                  0 
<OVERDISTRIB-NII-PRIOR>                    0 
<OVERDIST-NET-GAINS-PRIOR>                 0 
<GROSS-ADVISORY-FEES>                      0 
<INTEREST-EXPENSE>                         0 
<GROSS-EXPENSE>                          663 
<AVERAGE-NET-ASSETS>                   63077 
<PER-SHARE-NAV-BEGIN>                   9.93 
<PER-SHARE-NII>                            0 
<PER-SHARE-GAIN-APPREC>                    0 
<PER-SHARE-DIVIDEND>                       0 
<PER-SHARE-DISTRIBUTIONS>              0.66 
<RETURNS-OF-CAPITAL>                       0 
<PER-SHARE-NAV-END>                     8.99
<EXPENSE-RATIO>                         1.83
<AVG-DEBT-OUTSTANDING>                     0 
<AVG-DEBT-PER-SHARE>                       0 
         


</TABLE>

<TABLE> <S> <C>

<ARTICLE>       6 
<CIK> 0000745463  
<NAME> EATON VANCE GOVERNMENT OBLIGATIONS TRUST 
<SERIES> 
   <NUMBER> 1    
   <NAME> EV TRADITIONAL GOVERNMENT OBLIGATIONS FUND
   <MULTIPLIER> 1000 
         
<S>                             <C> 
<PERIOD-TYPE>                   12-MOS        
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-END>                               DEC-31-1994   
<INVESTMENTS-AT-COST>                 397744 
<INVESTMENTS-AT-VALUE>                388695
<RECEIVABLES>                            172
<ASSETS-OTHER>                             0 
<OTHER-ITEMS-ASSETS>                       0 
<TOTAL-ASSETS>                        388867
<PAYABLE-FOR-SECURITIES>                   0 
<SENIOR-LONG-TERM-DEBT>                    0 
<OTHER-ITEMS-LIABILITIES>                2681 
<TOTAL-LIABILITIES>                      2681 
<SENIOR-EQUITY>                            0 
<PAID-IN-CAPITAL-COMMON>               457654 
<SHARES-COMMON-STOCK>                   37058 
<SHARES-COMMON-PRIOR>                   43838 
<ACCUMULATED-NII-CURRENT>                  0 
<OVERDISTRIBUTION-NII>                     (1325) 
<ACCUMULATED-NET-GAINS>                    (61094) 
<OVERDISTRIBUTION-GAINS>                   0 
<ACCUM-APPREC-OR-DEPREC>                (9049) 
<NET-ASSETS>                           386186
<DIVIDEND-INCOME>                          0 
<INTEREST-INCOME>                          0 
<OTHER-INCOME>                          37056 
<EXPENSES-NET>                           1688 
<NET-INVESTMENT-INCOME>                 35368 
<REALIZED-GAINS-CURRENT>                (2788)
<APPREC-INCREASE-CURRENT>               (41383) 
<NET-CHANGE-FROM-OPS>                   (8803) 
<EQUALIZATION>                             0 
<DISTRIBUTIONS-OF-INCOME>               35368 
<DISTRIBUTIONS-OF-GAINS>                   0 
<DISTRIBUTIONS-OTHER>                    1359 
<NUMBER-OF-SHARES-SOLD>                  8690 
<NUMBER-OF-SHARES-REDEEMED>              17019 
<SHARES-REINVESTED>                      1549 
<NET-CHANGE-IN-ASSETS>                  71433 
<ACCUMULATED-NII-PRIOR>                    0 
<ACCUMULATED-GAINS-PRIOR>                  0 
<OVERDISTRIB-NII-PRIOR>                    0 
<OVERDIST-NET-GAINS-PRIOR>                 0 
<GROSS-ADVISORY-FEES>                      0 
<INTEREST-EXPENSE>                         0 
<GROSS-EXPENSE>                          1688 
<AVERAGE-NET-ASSETS>                   459230
<PER-SHARE-NAV-BEGIN>                   11.48 
<PER-SHARE-NII>                            0 
<PER-SHARE-GAIN-APPREC>                    0 
<PER-SHARE-DIVIDEND>                       0 
<PER-SHARE-DISTRIBUTIONS>              0.84 
<RETURNS-OF-CAPITAL>                       0 
<PER-SHARE-NAV-END>                     10.42
<EXPENSE-RATIO>                         1.17
<AVG-DEBT-OUTSTANDING>                     0 
<AVG-DEBT-PER-SHARE>                       0 
         


</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000912747
<NAME> GOVERNMENT OBLIGATIONS PORTFOLIO
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-END>                               DEC-31-1994
<INVESTMENTS-AT-COST>                               600316
<INVESTMENTS-AT-VALUE>                              582142
<RECEIVABLES>                                       7710
<ASSETS-OTHER>                                      16
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                      589868
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           74199
<TOTAL-LIABILITIES>                                 74199
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                            533640
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             (17971)
<NET-ASSETS>                                        515669
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    53735
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                       7767
<NET-INVESTMENT-INCOME>                              45968
<REALIZED-GAINS-CURRENT>                             (4217)
<APPREC-INCREASE-CURRENT>                            (50227)
<NET-CHANGE-FROM-OPS>                                (8476)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                               (13151)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                4260
<INTEREST-EXPENSE>                                   3221
<GROSS-EXPENSE>                                      7767
<AVERAGE-NET-ASSETS>                                 572314
<PER-SHARE-NAV-BEGIN>                                0
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                              0
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                                  0
<EXPENSE-RATIO>                                   0.80
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>


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