DOMINI SOCIAL EQUITY FUND
485APOS, 1997-09-26
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As filed with the Securities and Exchange Commission on  September 26, 1997.
Registration Nos. 33-29180, 811-5823
    

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


                                    FORM N-1A

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                                         
                         POST-EFFECTIVE AMENDMENT NO. 10
                                          

                                       and

         REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
                                         
                                AMENDMENT NO. 12
                                          

                            DOMINI SOCIAL EQUITY FUND

               (Exact Name of Registrant as Specified in Charter)
                  St. James Avenue, Boston, Massachusetts 02116
                    (Address of Principal Executive Offices)

        Registrant's Telephone Number, including Area Code: 617-423-0800

                            Philip W. Coolidge, Esq.
                     Signature Broker-Dealer Services, Inc.
                               6 St. James Avenue
                           Boston, Massachusetts 02116
                     (Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box)

   
[ ] immediately upon filing pursuant to paragraph (b) [ ] on (date) pursuant to
paragraph (b) [X] 60 days after filing pursuant to paragraph (a)(i) [ ] on
(date) pursuant to paragraph (a)(i) [ ] 75 days after filing pursuant to
paragraph (a)(ii) [ ] on (date) pursuant to paragraph (a)(ii) of rule 485.
    

If appropriate, check the following box:

[ ] this post-effective amendment designates a new effective date for a
previously filed post-effective amendment.

Registrant has registered an indefinite number of its shares of beneficial
interest (without par value) pursuant to Rule 24f-2 under the Investment Company
Act of 1940. Registrant filed the Notice required by Rule 24f-2 on or about
September 30, 1996 for Registrant's fiscal year ended July 31, 1996.



<PAGE>



Domini Social Index Portfolio has also executed this registration statement.


<PAGE>



                            DOMINI SOCIAL EQUITY FUND
                              CROSS REFERENCE SHEET
                            (As required by Rule 495)

<TABLE>
<CAPTION>
==========================================================================================================================
   
Item Number                                                                       Statement of Additional
Form N-1A, Part A                 Prospectus Caption                              Information Caption
    
<S>                                <C>                                               <C>
- --------------------------------------------------------------------------------------------------------------------------
1                                Front Cover Page                                                    *
- --------------------------------------------------------------------------------------------------------------------------
2                                Expense Summary                                                     *
- --------------------------------------------------------------------------------------------------------------------------
   
3                                Financial Highlights;                            Performance Information
                                 Performance Information
    
- --------------------------------------------------------------------------------------------------------------------------
4                                Front Cover Page; Investment                                        *
                                 Objective and Policies
- --------------------------------------------------------------------------------------------------------------------------
   
5                                The Fund; Management;  Manager,                                     *
                                  Submanager, Sponsor; Service
    
                                 Organizations, Transfer Agent
                                 and Custodian; Back Cover Page;
                                 Other Information Concerning
                                 Shares of the Fund-Expenses
- --------------------------------------------------------------------------------------------------------------------------
5A                                Not Applicable                                                     *
- --------------------------------------------------------------------------------------------------------------------------
6                                Other Information Concerning                                        *
                                 Shares of the Fund-Description
                                 of Shares, Voting Rights and
                                 Liabilities; Service
                                 Organizations, Transfer Agent
                                 and Custodian; Other
                                 Information Concerning Shares
                                 of the Fund-Dividends and
   
                                 Capital  Gains Distributions;
                                 Tax Matters
    
- --------------------------------------------------------------------------------------------------------------------------
   
7                                Purchases and Redemptions of                                        *
                                 Shares-Purchases, Automatic
                                 Investment Plan, Individual
                                 Retirement Accounts; Other
                                 Information Concerning Shares
                                 of the Fund-Net Asset Value,
                                 Distribution Plan and
                                 Agreement; Service
                                 Organizations, Transfer Agent
                                 and Custodian
    
- --------------------------------------------------------------------------------------------------------------------------
   
8                                Purchases and Redemptions of                                        *
                                 Shares-Redemptions, Systematic
                                 Withdrawal Plan
- --------------------------------------------------------------------------------------------------------------------------
    
9                                 Not Applicable                                                     *
==========================================================================================================================



<PAGE>




==========================================================================================================================
Item Number                                                                       Statement of Additional
Form N-1A, Part B                Prospectus Caption                               Information Caption
- --------------------------------------------------------------------------------------------------------------------------
10                                                      *                          Front Cover Page
- --------------------------------------------------------------------------------------------------------------------------
11                                                      *                         Front Cover Page
- --------------------------------------------------------------------------------------------------------------------------
12                                                      *                         The Fund
- --------------------------------------------------------------------------------------------------------------------------
   
13                               Investment Objective and                         Investment  Objective,
                                 Policies                                         Policies and Restrictions
    
- --------------------------------------------------------------------------------------------------------------------------
14                                                      *                         Management of the Fund
   
                                                                                  and the
                                                                                  Portfolio-Trustees of the Fund and
                                                                                  the Portfolio, Officers
- --------------------------------------------------------------------------------------------------------------------------
    
15                                                      *                          Management of the Fund
   
                                                                                  and the
                                                                                  Portfolio-Trustees of the Fund and
                                                                                  the Portfolio, Officers
- --------------------------------------------------------------------------------------------------------------------------
    
16                               Other Information Concerning                                        *
                                 Shares of the Fund-Expenses
                                 Management of the                                Management of the Fund
                                 Fund-Administrator, Sponsor                      and the
   
                                                                                  Portfolio-Manager  and   Submanager,
                                                                                  Sponsor
                                 Purchases and Redemptions of                     Management of the Fund
                                 Shares-Distribution Plan and                     and the
                                 Agreement                                        Portfolio-Distributor
                                 Service Organizations, Transfer                  Management of the Fund
                                 Agent and Custodian-Transfer                     and Portfolio; Transfer
                                 Agent and Custodian; Back Cover                  Agent,   Custodian and
                                 Page                                             Service Organizations;
    
                                                                                  Independent Auditors;
                                                                                  Back Cover Page


<PAGE>



                                                                                  Management of the Fund
                                                                                  and the
                                                                                  Portfolio-Distributor
- --------------------------------------------------------------------------------------------------------------------------
   
17                                                      *                          Portfolio Transactions
                                                                                  and Brokerage Commissions
    
- --------------------------------------------------------------------------------------------------------------------------
   
18                               Other Information Concerning                     Description of Shares,
                                 Shares of the Fund-Description                   Voting Rights and
                                 of Shares, Voting Rights and                     Liabilities
                                 Liabilities
    



<PAGE>




- --------------------------------------------------------------------------------------------------------------------------
   
19                               Purchases and Redemptions of                     Management of the Fund
                                 Shares; Other Information                        and the
                                 Concerning Shares of the                         Portfolio-Transfer Agent,
                                 Fund-Net Asset Value                             Custodian and Service
                                                                                  Organizations
- --------------------------------------------------------------------------------------------------------------------------
    
20                               Tax Matters                                      Taxation
- --------------------------------------------------------------------------------------------------------------------------
21                                                      *                         Management of the Fund
                                                                                  and the
                                                                                  Portfolio-Distributor
- --------------------------------------------------------------------------------------------------------------------------
   
 22                              Performance Information                          Performance Information
    
- --------------------------------------------------------------------------------------------------------------------------
23                                                      *                          Financial Statements
==========================================================================================================================
</TABLE>

Form N-1A, Part C

Information required to be included in Part C is set forth under the
appropriately numbered item in Part C of this registration statement.


<PAGE>


   
[DSI201D]                                                             PROSPECTUS
                                                              November  28, 1997
    
DOMINI SOCIAL EQUITY FUND

        The  investment  objective of the Domini Social Equity Fund (the "Fund")
is to provide its shareholders  with long-term total return which corresponds to
the  total  return  performance  of the  Domini  400  Social  IndexSM,  an index
comprised of stocks  selected  according to social  criteria.  The Fund seeks to
achieve its investment  objective by investing all of its  investable  assets in
the Domini Social Index  Portfolio  (the  "Portfolio"),  a diversified  open-end
management  investment company having the same investment objective as the Fund.
The  Portfolio  invests in the common  stocks  included in the Domini 400 Social
IndexSM.

   
        TABLE OF CONTENTS                                                  PAGE
        Investment in the Fund.................................................
        The Fund...............................................................
        Expense Summary........ ...............................................
        Financial Highlights...................................................
        Performance Information................................................
        Investment Objective and Policies......................................
        Management.............................................................
        Purchases and Redemptions of Shares....................................
        Tax Matters............................................................
        Other Information Concerning Shares of the Fund........................
        Service Organizations, Transfer Agent and Custodian....................
    

  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.

   
         The manager of the  Portfolio  is Domini  Social  Investments  LLC. The
investment submanager of the Portfolio is Mellon Equity Associates.  The sponsor
of the Fund is Domini Social  Investments LLC and the distributor of the Fund is
Signature  Broker-Dealer  Services,  Inc.  Investments  in the Fund are  neither
insured  nor  guaranteed  by the  U.S.  Government.  SHARES  OF THE FUND ARE NOT
DEPOSITS OR  OBLIGATIONS  OF, OR GUARANTEED BY, ANY BANK, AND THE SHARES ARE NOT
INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER FEDERAL, STATE
    
OR OTHER GOVERNMENTAL AGENCY.

        "DominiSM" and "Domini 400 Social  IndexSM" are service marks of Kinder,
Lydenberg, Domini & Co., Inc.

   
        This Prospectus sets forth concisely the information concerning the Fund
that a prospective  investor ought to know before investing.  The Fund has filed
with  the  Securities   and  Exchange   Commission  a  Statement  of  Additional
Information,  dated  November  28,  1997,  as amended  from time to time,  which
contains more detailed  information about the Fund and is incorporated into this
Prospectus  by  reference.  An investor  may obtain a copy of the  Statement  of
Additional  Information  without charge by contacting the distributor  (see back
cover for address and phone number).
    

         UNLIKE OTHER MUTUAL FUNDS WHICH  DIRECTLY  ACQUIRE AND MANAGE THEIR OWN
PORTFOLIO OF SECURITIES,  THE FUND SEEKS TO ACHIEVE ITS INVESTMENT  OBJECTIVE BY
INVESTING ALL OF ITS INVESTABLE ASSETS IN THE PORTFOLIO. THE FUND INVESTS IN THE
   
         PORTFOLIO THROUGH A TWO-TIER MASTER-FEEDER INVESTMENT FUND
    
         STRUCTURE.   SEE  "SPECIAL  INFORMATION  CONCERNING  THE  MASTER-FEEDER
INVESTMENT FUND STRUCTURE" HEREIN.

           INVESTORS  SHOULD  READ THIS  PROSPECTUS  AND  RETAIN  IT FOR  FUTURE
REFERENCE.


<PAGE>



   
                                    INVESTMENT IN THE FUND

        The Fund seeks to provide its  shareholders  with long-term total return
which  corresponds  to the total  return  performance  of the  Domini 400 Social
IndexSM, an index comprised of stocks selected according to social criteria. The
Fund may be  appropriate,  therefore,  for investors who are willing to ride out
stock  market  fluctuations  in pursuit of long-term  returns.  Because the Fund
seeks to track,  rather than exceed,  the performance of a particular index, the
Fund is not managed in the same way as other mutual funds.  In  particular,  the
manager  generally  does not judge  the  merits  of any  particular  stock as an
investment.  Therefore,  investors  should not expect to achieve the potentially
greater results that could be obtained by a fund that aggressively seeks growth.

        The value of an investment in the Fund varies from day to day, generally
reflecting  changes in the  financial  condition  of the  companies in which the
Portfolio invests, general market conditions and political and economic factors.
Stock prices can fluctuate  dramatically  in response to these and other factors
or speculation  about these factors.  Over the long term,  stocks have generally
shown greater growth potential than other types of securities. However, when you
sell your  Fund  shares,  they may be worth  more or less than what you paid for
them.

        Potential  investors  should note that because the Portfolio seeks to be
fully invested in the stocks comprising the Domini 400 Social IndexSM,  the Fund
is not a balanced investment plan. Potential investors should also note that the
manager of the Portfolio, Domini Social Investments LLC, has no prior experience
in  managing or  advising a mutual  fund.  You should  carefully  consider  your
investment  objectives and risk tolerance  before making a decision to invest in
the Fund.
    

                                           THE FUND

   
        Domini  Social  Equity  Fund (the  "Fund")  is a  no-load,  diversified,
open-end  management  investment company which was organized as a business trust
under the laws of the Commonwealth of  Massachusetts  on June 7, 1989.  Although
shares  of the Fund are  sold  without  a sales  load,  Signature  Broker-Dealer
Services,  Inc.  ("Signature" or the "Distributor")  receives a distribution fee
from the Fund pursuant to a  Distribution  Plan adopted in accordance  with Rule
12b-1 under the Investment Company Act of 1940, as amended (the "1940 Act"). The
Fund offers to buy back (redeem) its shares from its shareholders at any time at
net asset value.

        Shares of the Fund are sold continuously by the Distributor. The minimum
initial investment is $1,000,  except that the minimum initial investment for an
investor investing through an automatic  investment plan is $500 and the minimum
initial  investment  for an Individual  Retirement  Account  ("IRA") is $250. An
investor should obtain from the Distributor, and should read in conjunction with
this prospectus, the materials describing the procedures under which Fund shares
may be purchased and redeemed. See "Purchases and Redemptions of Shares" herein.
    


                                              2

<PAGE>



   
        Proceeds  from  the sale of  shares  of the  Fund  are  invested  in the
Portfolio  which then  purchases  securities in accordance  with its  investment
objective and policies. Domini Social Investments LLC ("DSI") is the Portfolio's
manager (the "Manager") and provides  investment  supervisory and administrative
services to the Portfolio.  Mellon Equity  Associates  ("Mellon  Equity") is the
Portfolio's  investment  submanager (the "Submanager").  DSI is also the sponsor
("Sponsor") of the Fund and provides  administrative services I to the Fund. The
Boards of Trustees of the Fund and of the Portfolio  provide I broad supervision
over the affairs of the Fund and of the Portfolio, I respectively.  The Trustees
who are not "interested  persons" as I defined in the 1940 Act (the "Independent
Trustees")  of the  Fund,  are  the  same  as the  Independent  Trustees  of the
Portfolio. A majority of the Fund's Trustees are not affiliated with the Manager
or the Submanager . For further  information  about the Trustees of the Fund and
the Portfolio,  see  "Management of the Fund and the Portfolio" in the Statement
of Additional Information.

         Kinder,  Lydenberg,  Domini & Co., Inc. ("KLD"),  the former investment
adviser of the Portfolio and an affiliate of DSI,  determines the composition of
the  Domini  400  Social  IndexSM  (which  determines  the  composition  of  the
Portfolio's securities). The following persons are primarily responsible for the
development  and  maintenance  of the  Domini  400  Social  IndexSM:  Steven  D.
Lydenberg,  Director  of  Research,  KLD,  since  1990;  and  Peter  D.  Kinder,
President,  KLD,  since 1988.  The  Submanager  manages the  investments  of the
Portfolio  from  day  to day  in  accordance  with  the  Portfolio's  investment
objective and policies.
    

                                        EXPENSE SUMMARY

        The  following  table  provides  (i) a summary of  expenses  relating to
purchases and sales of shares of the Fund,  and the aggregate  annual  operating
expenses for the Fund and the  Portfolio,  as a percentage of average net assets
of the Fund, and (ii) an example  illustrating  the dollar cost of such expenses
on a $1,000 investment in the Fund.

        SHAREHOLDER TRANSACTION EXPENSES . . . . . . . . . . . .       0%
        ANNUAL OPERATING EXPENSES:
   
               Advisory and Management Fees . . . . . . . . . . .   0.154%(1)
               12b-1 Fees . . . . . . . . . . . . . . . . . . . .   0.120%(2)
               Other Expenses
               --Administrative Services and Sponsorship Fees . .   0.423%(3)
               --Other Expenses . . . . . . . . . . . . . . . . .   0.283%
               --Expense Payment Fees . . . . . . . . . . . . . .   0.000%

               Total Operating Expenses . . . . . . . . . . . . .   0.980%(4)(5)

(1)  Under the Management Agreement between the Portfolio and DSI, DSI's fee for
     advisory  and  administrative  services  to the  Portfolio  is 0.20% of the
     average daily net assets of the Portfolio but will be reduced to the extent
     necessary to keep the aggregate annual operating  expenses of the Portfolio
     (excluding  brokerage  fees and  commissions,  interest,  taxes  and  other
     extraordinary  expenses) at no greater than 0.20% of the average  daily net
     assets of the Portfolio, 
<PAGE>

     through [November 1, 1998].  If this fee reduction were not in effect, 
     advisory and management  fees for the Portfolio  would be 0.20% of the
     average daily net assets of the Portfolio.

(2)  The percentage represents actual expenditures, expressed as a percentage of
     average  daily net assets,  under the Fund's  Distribution  Plan during the
     fiscal  year  ended  July  31,   1997.   The   Distribution   Plan  permits
     reimbursement  for expenses  incurred by the  Distributor of up to 0.25% of
     the Fund's  average  daily net assets.  See "Other  Information  Concerning
     Shares of the Fund--Distribution Plan and Agreement

(3)  Under the  Sponsorship  Agreement  between DSI and the Fund,  DSI's fee for
     administrative  and sponsorship  services is 0.50% of the average daily net
     assets of the Fund but will be reduced to the extent  necessary to keep the
     aggregate annual operating expenses of the Fund (including the Fund's share
     of the Portfolio's  expenses but excluding  brokerage fees and commissions,
     interest,  taxes and other extraordinary expenses) at no greater than 0.98%
     of the average daily net assets of the Fund through  [November 1, 1998]. If
     this  fee  reduction  were  not  in  effect,  administrative  services  and
     sponsorship  fees for the Fund  would be  0.50% of the  average  daily  net
     assets of the Fund.

(4)  Other  Expenses  and Total  Operating  Expenses do not  reflect  either the
     payment to Signature by the Fund of $550,000 in connection with termination
     of the  expense  payment  arrangements  with  Signature  or other  expenses
     incurred  by  the  Fund  in  connection   with  the   termination  of  such
     arrangements.  Had such nonrecurring expenses been included, Other Expenses
     and Total Operating Expenses would be 0.793% and 1.49%, respectively.

(5)  Without the automatic fee reductions,  which expire  [November 1, 1998], it
     is  estimated  that the  aggregate  annual  operating  expenses of the Fund
     (including the Fund's share of the Portfolio's expenses) would be 1.103% of
     the average  daily net assets of the Fund assuming the same level of assets
     and  expenses of the Fund as existed  during the fiscal year ended July 31,
     1997.

        The expense  information  in the expense table  provided  above has been
restated to reflect fees  currently in effect.  The purpose of the expense table
is  to  help  investors  understand  the  various  costs  and  expenses  that  a
shareholder will bear directly or indirectly. Without reimbursement,  historical
operating  expenses  expressed as a ratio of the Fund's  average net assets were
1.07% for the fiscal  year  ended July 31,  1997.  See  "Management"  and "Other
Information  Concerning Shares of the  Fund--Expenses" for more information with
respect to the expenses of the Fund and the Portfolio.
    

                                              4

<PAGE>




        EXAMPLE:

               A shareholder  of the Fund would pay the following  expenses on a
               $1,000 investment in the Fund,  assuming (1) 5% annual return and
               (2) redemption at the end of:

                      1 year . . . . . . . . . . . . . . . . . . .   $ 10
                      3 years  . . . . . . . . . . . . . . . . . .   $ 31
                      5 years  . . . . . . . . . . . . . . . . . .   $ 54
                      10 years . . . . . . . . . . . . . . . . . .   $120



        The Fund pays a distribution fee at an annual rate of up to 0.25% of the
Fund's  average daily net assets in  reimbursement  of, or in  anticipation  of,
expenses  incurred by the  Distributor in connection  with the sale of shares of
the Fund.  Long-term  shareholders may pay more than the economic  equivalent of
the maximum  distribution  charges  permitted  by the  National  Association  of
Securities  Dealers,  Inc.  The Fund may pay fees to Service  Organizations  (as
defined  below) in amounts up to an annual  rate of 0.25% of the daily net asset
value  of  shares  of the Fund  owned  by  shareholders  with  whom the  Service
Organization has a servicing  relationship.  See "Other  Information  Concerning
Shares of the Fund--Distribution Plan and Agreement" and "Service Organizations,
Transfer Agent and Custodian".

        THE  "EXAMPLE"  SET  FORTH  ABOVE  IS  HYPOTHETICAL  AND  SHOULD  NOT BE
CONSIDERED  A  REPRESENTATION  OF PAST OR FUTURE  EXPENSES  OF THE FUND.  ACTUAL
EXPENSES AND RETURNS MAY BE MORE OR LESS THAN THOSE SHOWN.

   
        The Fund's Trustees believe that the aggregate per share expenses of the
Fund and the Portfolio will be less than or approximately  equal to the expenses
which the Fund would incur if it retained the services of an investment  manager
and an investment  submanager  and invested  directly in the types of securities
being held by the Portfolio.
    

                                     FINANCIAL HIGHLIGHTS

   
        The following  selected data for a share  outstanding  for the indicated
periods  have been audited by [ ],  independent  certified  public  accountants,
whose  reports  thereon  are  incorporated  by  reference  in the  Statement  of
Additional Information.  This information should be read in conjunction with the
financial  statements  incorporated  by reference in the Statement of Additional
Information.

        The  Fund's  Annual  Report  includes  a  discussion  of those  factors,
strategies and techniques that materially affected the Fund's performance during
the fiscal year ended July 31, 1997, as well as certain related  information.  A
copy of the Annual Report will be made available without charge upon request.
    


                                              5

<PAGE>

<TABLE>
<CAPTION>

                                                      For the Fiscal Years Ended July 31
                                                      -------------------------------------------------------------
   
<S>                                                   <C>             <C>            <C>            <C>
                                                           1997            1996            1995            1994
                                                      -------------   -------------   -------------   -------------
 Net Asset Value, beginning of period..............    $     16.70     $     14.85     $     12.13     $     12.00
                                                      -------------   -------------   -------------   -------------
 Income from investment operations:
   Net investment income...........................          0.112           0.163           0.172           0.175
   Net realized and unrealized gain (loss) on
    investments....................................          8.848           1.927           2.825           0.178
                                                      -------------   -------------   -------------   -------------
 Total from investment operations..................          8.960           2.090           2.997           0.353
                                                      -------------   -------------   -------------   -------------
 Less distributions and dividends:
   Dividends to shareholders from net investment
    income.........................................         (0.112)         (0.158)         (0.195)         (0.150)
   Distributions to shareholders from net realized
    gain...........................................         (0.118)         (0.082)         (0.082)         (0.073)
                                                      -------------   -------------   -------------   -------------
 Total distributions...............................         (0.230)         (0.240)         (0.277)         (0.223)
                                                      -------------   -------------   -------------   -------------
 Net asset value, end of period....................    $     25.43     $     16.70     $     14.85     $     12.13
                                                      =============   =============   =============   =============
 Ratios/supplemental data:
   Total return....................................          54.01%          14.11%          25.10%           2.90%
   Net assets, end of period (in 000's)............       $212,310         $80,915         $54,638         $31,369
   Ratio of expenses to average net assets.........           0.98%(1)        0.98%(1)        0.90%(2)        0.75%(2)
   Ratio of net investment income to average net
    assets.........................................           0.62%(1)        1.01%(1)        1.38%(2)        1.67%(2)
    

<CAPTION>
   
                                                                                      For the Period
                                                                                      August 10, 1990
                                                                                        to July 31,
                                                          1993             1992             1991
                                                      -------------   -------------   ---------------
<S>                                                    <C>            <C>            <C>
 Net Asset Value, beginning of period..............    $     11.06      $    9.95      $  10.00
                                                      -------------   -------------     -------
 Income from investment operations:
   Net investment income...........................          0.137          0.117         0.018
   Net realized and unrealized gain (loss) on
    investments....................................          0.968          1.106        (0.068)
                                                      -------------   -------------     -------
 Total from investment operations..................          1.105          1.223        (0.050)
                                                      -------------   -------------     -------
 Less distributions and dividends:
   Dividends to shareholders from net investment
    income.........................................         (0.150)        (0.113)         --
   Distributions to shareholders from net realized
    gain...........................................         (0.015)         --             --
                                                      -------------   -------------     -------
 Total distributions...............................         (0.165)        (0.113)         --
                                                      -------------   -------------     -------
 Net asset value, end of period....................    $     12.00     $    11.06      $   9.95
                                                      =============   =============     =======
 Ratios/supplemental data:
   Total return....................................          10.00%          12.30%       (0.50)%
   Net assets, end of period (in 000's)............    $    17,229     $     7,174      $ 1,740
   Ratio of expenses to average net assets.........           0.75%(2)        0.75%(2)     0.75%(3)
   Ratio of net investment income to average net
    assets.........................................           1.41%(2)        1.53%(2)     1.49%(3)
    
</TABLE>
- ------------------------------
   
(1)  Had an expense  payment  agreement  not been in place the ratio of expenses
     and net investment  income to average net assets for the fiscal years ended
     July 31,  1997 and 1996,  would have been  0.84% and  0.76%,  and 1.07% and
     0.92%, respectively.

(2)     Reflects  a  voluntary  waiver  of  fees  by  Signature  and  KLD due to
        limitations set forth in an expense payment agreement. Had Signature and
        KLD not  waived  their  fees,  the ratios of net  investment  income and
        expenses to average net assets for the years ended July 31,  1995,  1994
        and 1993 would have been 1.13% and 1.15%,  1.39% and 1.03% and 1.26% and
        0.90%, respectively.

(3)     Annualized.
    

                                              6

<PAGE>



                                    PERFORMANCE INFORMATION

        Performance  information  concerning  the Fund may from  time to time be
used  in  advertisements,   shareholder  reports  or  other   communications  to
shareholders. The Fund may provide period and average annualized "total rates of
return" with respect to the Fund.  The "total rate of return" of the Fund refers
to the change in the value of an investment in a Fund over a stated period based
on any change in net asset value per share and  includes the value of any shares
purchasable  with any dividends or capital gains  distributions  declared during
such period. Period total rates of return may be annualized. An annualized total
rate of return is a  compounded  total  rate of return  which  assumes  that the
period total rate of return is  generated  over a 52-week  period,  and that all
dividends and capital gains  distributions  are reinvested.  An annualized total
rate of return will be slightly higher than a period total rate of return if the
period is shorter than one year, because of the effect of compounding.

        The  table  that  follows  sets  forth   average   annual  total  return
information for the periods indicated

   
                                                  7/31/97      9/30/97
        1   Year:   .  .   .  .  .  .  .  .  .  .   .[__.__  --.--]
        5   Years:   .  .   . .  .  .  .  .  .  .   .[__.__  --.--]
    
        Commencement of Investment in the
   
        Portfolio*   to   date   .  .   .   .   .   .[__.__  --.--]
    
        * The Fund commenced investment in the Portfolio on June 3, 1991.

        The Fund may provide  "yield"  quotations  with respect to the Fund. The
"yield" of the Fund refers to the income  generated by an investment in the Fund
over a  30-day  or  one-month  period  (which  period  shall  be  stated  in any
advertisement  or  communications  with a  shareholder).  This  income  is  then
"annualized", that is, the amount of income generated by the investment over the
period  is  assumed  to be  generated  over a 52-week  period  and is shown as a
percentage of  investment.  A "yield"  quotation,  unlike a total rate of return
quotation, does not reflect changes in net asset value.

   
        From time to time the Fund may also quote  fund  rankings  from  various
sources,  such  as  Lipper  Analytical  Services,  Inc.,  and  may  compare  its
performance to that of the Domini 400 Social IndexSM and various other unmanaged
securities  indices,  such as the  Standard & Poor's 500  Composite  Stock Price
Index  (the  "S&P  500")  and the Dow  Jones  Industrial  Average.  "Standard  &
Poor(R)",  "S&P(R)" and "Standard & Poor's  500(R)" are trademarks of Standard &
Poor's Corporation.
    

         See the Statement of  Additional  Information  for further  information
concerning  the  calculation  of yield and any total rate of return  quotations.
Since  the  Fund's  yield  and  total  rate of  return  quotations  are based on
historical earnings and since such yield and rates of return fluctuate overtime,
such quotations  should not be considered as an indication or  representation of
the future performance of the Fund.



                                       7
<PAGE>


                               INVESTMENT OBJECTIVE AND POLICIES

   
        INVESTMENT OBJECTIVE--The investment objective of the Fund is to provide
its shareholders with long-term total return (reflecting both dividend and price
performance of the Fund) which  corresponds  to the total return  performance of
the Domini 400 Social IndexSM  (referred to herein as the "Index" or the "Domini
Social Index"). There can, of course, be no assurance that the Fund will achieve
its investment  objective.  The investment  objective of the Fund may be changed
without approval by the Fund's shareholders.

        INVESTMENT  POLICIES--The Fund seeks to achieve its investment objective
by investing all of its investable  assets in the Portfolio,  which has the same
investment  objective as the Fund. The Portfolio seeks to achieve its investment
objective by investing in the common stocks  comprising the Domini Social Index.
The  Portfolio  will  approximate  the  weightings  of  securities  held  by the
Portfolio  to the  weightings  of the stocks in the Index,  except as  described
below, and will seek a correlation  between the weightings of securities held by
the Portfolio and the weightings of the stocks in the Index of 0.95 or better. A
figure of 1.0 would  indicate a perfect  correlation.  As of September 30, 1997,
the  correlation  between the weightings of securities held by the Portfolio and
the weightings of the stocks in the Index was [_.__]. To the extent practicable,
the  Portfolio  will  attempt to be fully  invested.  The ability of the Fund to
duplicate the performance of the Index by investing in the Portfolio will depend
to some extent on the size and timing of cash flows into and out of the Fund and
the Portfolio as well as the Fund's and the Portfolio's expenses. Adjustments in
the securities  holdings of the Portfolio to  accommodate  cash flows will track
the Index to the extent practicable, but this will result in brokerage expenses.

         SOCIAL CRITERIA--The Domini Social Index was developed and is currently
maintained by KLD. The Index is a common stock index  comprised of the stocks of
approximately  400 companies which meet certain social criteria.  The weightings
of the stocks compromising the Index are based upon market  capitalization.  The
criteria used in developing  and  maintaining  the Index involve the  subjective
judgment of KLD. KLD,  based on available  data,  seeks to exclude the following
types of companies:  firms that derive more than 2% of their gross revenues from
the  sale  of  military  weapons;  firms  that  derive  any  revenues  from  the
manufacture of tobacco  products or alcoholic  beverages;  firms that derive any
revenues from gambling  enterprises;  and firms that have an ownership share in,
or operate,  nuclear power plants,  or participate in businesses  related to the
nuclear fuel cycle. KLD also considers  criteria such as corporate  citizenship,
employee relations,  environmental performance,  and product-related issues when
evaluating stocks for inclusion in the Index. The corporate citizenship criteria
include a company's record with regard to its  philanthropic  activities and its
community  relations  in general.  The  employee  relations  criteria  include a
company's  record  with  regard  to  labor  matters,   workplace  safety,  equal
employment opportunity,  employee benefit programs, and meaningful participation
in company  profits either  through stock purchase or profit sharing plans.  The
environmental  performance  criteria  include a company's  record with regard to
fines or penalties, waste disposal, toxic emissions,  efforts in waste reduction
and  emissions  reduction,  recycling,  and  environmentally  beneficial  fuels,
products and services. The product-related
    


                                       8

<PAGE>


criteria  include a company's  record with regard to product  safety,  marketing
practices, and commitment to quality.

   
        The  Manager  intends  to vote  proxies  of  companies  included  in the
Portfolio consistent with the social criteria used in developing and maintaining
the Domini Social Index.

        INDEX  MANAGEMENT--The  Portfolio  is not  managed  in  the  traditional
investment  sense,  since changes in the composition of its securities  holdings
are made in order to track the changes in the composition of securities included
in the Domini Social Index. Moreover, inclusion of a stock in the Index does not
imply an opinion by KLD or the Manager as to the merits of that  specific  stock
as an investment.  However,  KLD and the Manager believe that enterprises  which
exhibit a social  awareness,  based on the criteria  described above,  should be
better  prepared to meet future  societal  needs for goods and  services and may
also be less likely to incur certain legal liabilities that may be incurred when
a product or service is  determined  to be  harmful,  and that such  enterprises
should over the longer term be able to provide a positive return to investors.

        In selecting stocks for inclusion in the Domini Social Index:

         1. KLD  evaluated,  in accordance  with the social  criteria  described
above,  each of the  companies  the stocks of which  comprise  the S&P 500. If a
company  whose stock was included in the S&P 500 met KLD's  social  criteria and
met KLD's further  criteria for industry  diversification,  financial  solvency,
market  capitalization,  and minimal portfolio turnover,  it was included in the
Domini  Social Index.  As of July 31, 1997,  of the 500  companies  whose stocks
comprised the S&P 500, approximately [__]% were included in the Index.


         2. The remaining stocks comprising the Domini Social Index (I.E., those
which are not included in the S&P 500) were selected based upon KLD's evaluation
of the social  criteria  described  above,  as well as upon KLD's  criteria  for
industry diversification, financial solvency, market capitalization, and minimal
portfolio  turnover.  Because of the social criteria applied in the selection of
stocks  comprising the Index,  industry  sector  weighting in the Index may vary
materially  from the industry  weightings in other stock indices,  including the
S&P 500, and certain industry sectors will be excluded altogether.
    
   
         The  component  stocks of the S&P 500 are  chosen by  Standard & Poor's
Corporation  ("S&P")  solely with the aim of achieving a  distribution  by broad
industry  groupings that approximates the distribution of these groupings in the
New York Stock  Exchange  common stock  population,  taken as the assumed  model
forthe  composition  of the  total  market.  Construction  of the S&P 500 by S&P
proceeds  from  industry  groups  to  the  whole.   Since  some  industries  are
characterized by companies of relatively small stock capitalization, the S&P 500
does not  comprise  the 500  largest  companies  listed  on the New  York  Stock
Exchange.  Not all  stocks  included  in the S&P 500 are  listed on the New York
Stock  Exchange.  However,  the total market value of the S&P 500 as of July 31,
1997 represented  [__]% of the aggregate market value of common stocks traded on
the New York Stock Exchange.
    

                                       9

<PAGE>


        Inclusion  of a stock in the S&P 500 in no way implies an opinion by S&P
as to its attractiveness as an investment,  nor is S&P a sponsor of or otherwise
affiliated with the Fund or the Portfolio.

        Some of the stocks  included in the Domini Social Index may be stocks of
foreign issuers (provided that the stocks are traded in the United States in the
form of American Depositary Receipts or similar instruments the market for which
is  denominated  in United States  dollars).  Securities of foreign  issuers may
represent  a  greater  degree  of risk  (I.E.,  as a  result  of  exchange  rate
fluctuation,  tax  provisions,  war or  expropriation)  than  do  securities  of
domestic issuers.

        The  weightings  of stocks in the Domini  Social Index are based on each
stock's  relative  total market  capitalization,  (I.E.,  market price per share
times the number of shares outstanding).  Because of this weighting,  as of July
31,
   
         1997  approximately [__] of the Index was comprised of the [__] largest
companies in the Index.

         KLD may exclude from the Domini Social Index stocks issued by companies
which are in bankruptcy or whose bankruptcy KLD believes may be imminent.

         The Portfolio intends to readjust its securities holdings  periodically
such that those holdings will correspond,  to the extent reasonably practicable,
to the Domini  Social  Index both in terms of  composition  and  weighting.  The
timing and extent of  adjustments  in the  holdings  of the  Portfolio,  and the
extent of the correlation of the holdings of the Portfolio with the Index,  will
reflect the Submanager's judgment as to the appropriate balance between the goal
of correlating  the holdings of the Portfolio with the composition of the Index,
and the goals of minimizing  transaction costs and keeping  sufficient  reserves
available for anticipated redemptions of Fund shares. To the extent practicable,
the Portfolio will seek a correlation  between the weightings of securities held
by the  Portfolio to the  weightings  of the  securities in the Index of 0.95 or
better. The Board of Trustees of the Portfolio will receive and review, at least
quarterly,  a report prepared by the Submanager comparing the performance of the
Fund and the Portfolio with that of the Index, and comparing the composition and
weighting of the Portfolio's holdings with those of the Index, and will consider
what action,  if any,  should be taken in the event of a  significant  variation
between the  performance of the Fund or the  Portfolio,  as the case may be, and
that of the Index,  or between the  composition and weighting of the Portfolio's
securities  holdings  with those of the  stocks  comprising  the  Index.  If the
correlation  between the weightings of securities  held by the Portfolio and the
weightings  of the stocks in the Index falls  below 0.95,  the Board of Trustees
will review with the Submanager methods for increasing such correlation, such as
through adjustments in securities holdings of the Portfolio.
    

         The Portfolio may invest cash  reserves in short-term  debt  securities
(I.E.,  securities  having a remaining  maturity of one year or less)  issued by
agencies  or  instrumentalities  of  the  United  States  Government,   bankers'
acceptances,  commercial  paper or  certificates  of deposit,  provided that the
issuer satisfies KLD's social criteria.  The Portfolio does not currently intend
to invest in direct obligations of the United States Government. Short-term debt
securities


                                      10
<PAGE>


purchased  by  the  Portfolio  will  be  rated  at  least  Prime-1  by   Moody's
Investors Service, Inc. or A-1+ or A-1 by S&P or, if not rated, determined to be
of comparable  quality by the  Portfolio's  Board of Trustees.  The  Portfolio's
policy is to hold its  assets in such  securities  pending  readjustment  of its
portfolio  holdings of stocks comprising the Domini Social Index and in order to
meet anticipated  redemption  requests.  Such investments are not intended to be
used for defensive purposes in periods of anticipated market decline.
   
        The annual  portfolio  turnover  rates of the  Portfolio  for the fiscal
years ended July 31, 1996 and July 31,  1997 were 5% and 1%,  respectively.  The
Portfolio's  average  brokerage  commission  rates paid per share for the fiscal
years ended July 31, 1996 and July 31, 1997 were $0.05 and $0.05, respectively.
    

        The Portfolio's primary consideration in placing securities transactions
with  broker-dealers  for execution is to obtain,  and maintain the availability
of,  execution at the most  favorable  prices and in the most  effective  manner
possible.   Neither  the  Portfolio  nor  the  Fund  will  engage  in  brokerage
transactions with the
   
         Manager,  the  Submanager  or the  Sponsor  or any of their  respective
affiliates or any affiliate of the Fund or the Portfolio. For further discussion
regarding securities trading by the Portfolio, see the
    
Statement of Additional Information.

        Consistent with applicable  regulatory policies,  including those of the
Board of Governors of the Federal Reserve System and the Securities and Exchange
Commission,  the Portfolio  may make loans of its  securities to member banks of
the Federal Reserve System and to  broker-dealers.  Such loans would be required
to be secured continuously by collateral consisting of securities,  cash or cash
equivalents  maintained  on a current  basis at an amount at least  equal to the
market value of the  securities  loaned.  The Portfolio  would have the right to
call a loan and obtain the securities  loaned at any time on three days' notice.
During the  existence of a loan,  the  Portfolio  would  continue to collect the
equivalent  of the  dividends  paid by the issuer on the  securities  loaned and
would also receive interest on investment of cash collateral.  The Portfolio may
pay  finder's  and other fees in  connection  with  securities  loans.  Loans of
securities involve a risk that the borrower may fail to return the securities or
may fail to provide additional collateral.

         Although it has no current  intention to do so, the  Portfolio may make
short sales of securities or maintain a short  position,  if at all times when a
short position is open the Portfolio owns an equal amount of such securities, or
securities convertible into such securities.

   
SPECIAL  INFORMATION  CONCERNING THE  MASTER  FEEDER  INVESTMENT FUND STRUCTURE
    



   
        Unlike other mutual  funds which  directly  acquire and manage their own
portfolio  securities,  the Fund seeks to achieve its  investment  objective  by
investing all of its investable assets in the Portfolio,  a separate  registered
investment  company with the same investment  objective as the Fund. In addition
to selling a beneficial  interest to the Fund, the Portfolio may sell beneficial
interests to other mutual funds or institutional investors.  Such investors will
invest in the  Portfolio on the same terms and  conditions  as the Fund 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
    
                                       11

<PAGE>
   
  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 different  funds that invest in the  Portfolio.
Such  differences  in returns are also present in other mutual fund  structures.
Information  concerning other holders of interests in the Portfolio is available
from the Manager at [(___) ___-____].
    

        The investment objective of the Fund may be changed without the approval
of  the  Fund's  shareholders,   but  not  without  written  notice  thereof  to
shareholders  thirty  days prior to  implementing  the  change.  If there were a
change in the Fund's investment objective,  shareholders should consider whether
the Fund  remains  an  appropriate  investment  in  light of their  then-current
financial  positions and needs.  The  investment  objective of the Portfolio may
also be changed without the approval of the investors in the Portfolio,  but not
without  written notice thereof to the investors in the Portfolio (and notice by
the Fund to its  shareholders) 30 days prior to implementing  the change.  There
can, of course, be no assurance that the investment objective of either the Fund
or  the  Portfolio  will  be  achieved.  See  "Investment  Restrictions"  in the
Statement  of  Additional  Information  for a  description  of  the  fundamental
policies  of the  Fund and of the  Portfolio  that  cannot  be  changed  without
approval by the holders of a "majority of the outstanding voting securities" (as
defined in the 1940 Act) of the Fund or the Portfolio,  respectively.  Except as
stated otherwise, all investment guidelines, policies and restrictions described
herein and in the Statement of Additional Information are non-fundamental.

         Smaller funds investing in the Portfolio may be materially  affected by
the actions of larger funds investing in the Portfolio.  For example, if a large
fund withdraws from the Portfolio, the remaining funds may experience higher pro
rata operating  expenses,  thereby  producing lower returns.  Additionally,  the
Portfolio  may become less  diverse,  resulting  in  increased  portfolio  risk.
(However,  this possibility  exists as well for  traditionally  structured funds
which have large or  institutional  investors.)  Also,  funds with a greater pro
rata  ownership in the  Portfolio  could have  effective  voting  control of the
operations of the  Portfolio.  Subject to exceptions  that are not  inconsistent
with  applicable  rules or policies of the Securities  and Exchange  Commission,
whenever the Fund is requested to vote on matters  pertaining to the  Portfolio,
the Fund will hold a meeting  of  shareholders  of the Fund and will cast all of
its votes in the same proportion as the votes of the Fund's  shareholders.  Fund
shareholders  who do not vote will not affect the Fund's votes at the  Portfolio
meeting.  The percentage of the Fund's votes  representing Fund shareholders not
voting will be voted by the Trustees of the Fund in the same  proportion  as the
Fund  shareholders  who do, in fact,  vote.  Certain  changes in the Portfolio's
investment objective,  policies or restrictions may require the Fund to withdraw
its  interest  in  the  Portfolio.   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.

                                       12

<PAGE>

   
        The Fund may withdraw its investment  from the Portfolio at any time, if
the Board of Trustees of the Fund determines that it is in the best interests of
the Fund to do so.  Upon any  such  withdrawal,  the  Board  of  Trustees  would
consider what action might be taken,  including the investment of all the assets
of the Fund in another  pooled  investment  entity  having  the same  investment
objective as the Fund or the  retention of an  investment  adviser to manage the
Fund's assets in accordance  with the investment  policies  described above with
respect to the  Portfolio.  In the event the Trustees of the Fund were unable to
find a substitute  investment  company in which to invest the Fund's  assets and
were  unable to secure  directly  the  services  of an  investment  manager  and
investment  submanager,  the Trustees  will seek to determine the best course of
action.

        For more  information  about the  Portfolio's  policies,  management and
expenses  see  "Investment  Objective  and  Policies",  "Management"  and "Other
Information Concerning Shares of the Fund--Expenses".  For information about the
Portfolio's investment restrictions see the Statement of Additional Information.
    

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

         As a matter of  fundamental  policy,  the Fund will  invest  all of its
investable  assets (either directly or through the Portfolio) in one or more of:
(i) stocks comprising an index of securities  selected applying social criteria,
which initially will be the Domini Social Index, (ii) short-term debt securities
of issuers which meet social  criteria,  (iii) cash,  and (iv) options on equity
securities.  This  fundamental  policy cannot be changed without the approval of
the  holders  of a  majority  of the  Fund's  shares  (which,  as  used  in this
Prospectus,  means the lesser of (a) more than 50% of the outstanding  shares of
the Fund, or (b) 67% or more of the outstanding  shares of the Fund present at a
meeting at which holders of more than 50% of the Fund's  outstanding  shares are
represented in person or by proxy). Except for this fundamental policy, investor
approval  is not  required  to change the Fund's or the  Portfolio's  investment
objective or any of the investment policies described above.

        The Statement of Additional  Information  includes a discussion of other
investment  policies  and a listing of specific  investment  restrictions  which
govern  the  Portfolio's  and the  Fund's  investment  policies.  Certain of the
investment  restrictions  listed in the Statement of Additional  Information may
not be changed by the  Portfolio  without the approval of the Fund and the other
investors  in  the  Portfolio  or by  the  Fund  without  the  approval  of  the
shareholders of the Fund. If a percentage or rating restriction on investment or
utilization  of assets is adhered to at the time an investment is made or assets
are so utilized,  a later  change in  percentage  resulting  from changes in the
Portfolio's  total assets or the value of the Portfolio's  securities or a later
change in the rating of a security held by the Portfolio  will not be considered
a violation of policy.

   
         Expenses of the  Portfolio  with respect to investment  management  and
administrative  services,  investment  submanagement  services  and  sponsorship
services are described herein under  "Management--Manager,--  Submanager,  and--
Sponsor", respectively.
    

                                       13

<PAGE>

                                          MANAGEMENT

   
         The Boards of  Trustees  of the Fund and the  Portfolio  provide  broad
supervision  over the affairs of the Fund and the Portfolio,  respectively.  The
Fund has  retained  the  services of DSI as Sponsor,  but has not  retained  the
services of an investment manager or investment  submanager since the Fund seeks
to achieve its investment objective by investing all of its investable assets in
the  Portfolio.  The  Portfolio  has retained the services of DSI as  investment
manager and Mellon Equity as investment submanager.
    



                                            MANAGER

   
        DSI, a Massachusetts  limited  liability  company,  provides  investment
management and administrative services to the Portfolio pursuant to a Management
Agreement. DSI has been registered as an investment adviser under the Investment
Advisers Act of 1940 since 1997. The services provided by the Manager consist of
investment supervisory services,  overall operational support and administrative
services.  The  administrative  services include the provision of general office
facilities and supervising the overall administration of the Portfolio.  For its
services under the Management Agreement, the Manager receives from the Portfolio
a fee  accrued  daily and paid  monthly at an annual  rate equal to 0.20% of the
Portfolio's average daily net assets, on an annualized basis for the Portfolio's
then-current fiscal year, subject to reduction. See "Expenses" for a description
of this fee reduction pursuant to the Management Agreement.

        Prior to [November 1, 1997],  KLD, as the Portfolio's  former investment
adviser,  received from the Portfolio a fee accrued daily and paid monthly at an
annual rate equal to 0.025% of the Portfolio's  average daily net assets,  on an
annualized  basis for the Portfolio's  then-current  fiscal year.  Additionally,
prior to [November 1, 1997], KLD received from the Portfolio a fee accrued daily
and paid  monthly  at an annual  rate equal to 0.025% of the  average  daily net
assets of the  Portfolio  for its then  current  fiscal year for  administrative
services.

        "DominiSM"  and "Domini  400 Social  IndexSM"  are service  marks of KLD
which  are  licensed  to DSI with the  consent  of Amy L.  Domini.  Pursuant  to
agreements among DSI, Amy L. Domini, and each of the Fund and the Portfolio, the
Portfolio  may be  required to  discontinue  use of these  service  marks if DSI
ceases to be the Manager of the Portfolio or Ms.  Domini  withdraws her consent,
and the Fund may be required to  discontinue  the use of these  service marks if
either DSI  ceases to be the  Sponsor of the Fund or Ms.  Domini  withdraws  her
consent or if either DSI ceases to be the Manager of the  Portfolio  or the Fund
ceases to invest all of its assets in the Portfolio.

                                          SUBMANAGER

         Mellon  Equity  provides  investment   submanagement  services  to  the
Portfolio on a day-to-day basis pursuant to a Submanagement  Agreement with DSI.
Mellon Equity does not determine the composition of the Domini Social Index.
    
                                       14

<PAGE>

   
         Under the Submanagement Agreement, DSI pays Mellon Equity an investment
submanagement  fee equal on an annual  basis to 0.10% of the  average  daily net
assets of the Portfolio.  Prior to [November 1, 1997], the Portfolio paid Mellon
Equity an  investment  management  fee equal on an annual  basis to 0.10% of the
average daily net assets of the Portfolio.

        Mellon  Equity is a  Pennsylvania  business  trust founded in 1987 whose
beneficial  owners are Mellon Bank N.A. and MMIP, Inc (a wholly owned subsidiary
of Mellon Bank Corporation  ("Mellon Bank")).  Mellon Equity has been registered
as an investment  adviser under the Investment  Advisers Act of 1940 since 1986.
Prior to 1987, the Submanager was part of the Equity  Management Group of Mellon
Bank's  Trust  and  Investment   Department,   which  managed  domestic  equity,
tax-exempt and institutional pension assets since 1947. As of December 31, 1996,
the Submanager had approximately $11.3 billion in assets under management.

         [John R. O'Toole (a senior vice president of Mellon  Equity,  CFA and a
member of AIMR),  has been primarily  responsible  for the day-to-day  portfolio
management of the Portfolio  since November 1994. He has been employed by Mellon
Equity and/or Mellon Bank as a portfolio manager for over five years.]
    

                                            SPONSOR

   
        Pursuant to a  Sponsorship  Agreement,  DSI  provides  the Fund with the
administrative personnel and services necessary to operate the Fund. In addition
to general administrative  services and facilities for the Fund similar to those
provided by DSI to the Portfolio  under the  Management  Agreement,  DSI answers
questions from the general public and the media regarding the composition of the
Domini  Social Index and the  securities  holdings of the  Portfolio.  For these
services and  facilities,  DSI receives  fees computed and paid monthly from the
Fund at an annual  rate  equal to 0.50% of the  average  daily net assets of the
Fund  for the  Fund's  then-current  fiscal  year,  subject  to  reduction.  See
"Expenses" for a description of this fee reduction  pursuant to the  Sponsorship
Agreement.
    

                              PURCHASES AND REDEMPTIONS OF SHARES

                                           PURCHASES

        Shares  of the Fund may be  purchased  without  a sales  load at the net
asset value next  determined  after an order for shares is received and accepted
by the Fund provided such order is received and accepted on any day the New York
Stock Exchange is open for trading (a "Fund Business Day").  The minimum initial
investment in the Fund is $1,000, except that the minimum initial investment for
an investor  who invests  through an automatic  investment  plan is $500 and the
minimum initial  investment for an IRA is $250. Except as noted below,  there is
no minimum on additional investments.

        The Fund reserves the right to cease offering its shares for sale at any
time or to reject any order for the purchase of its shares.


                                              15

<PAGE>



        For each shareholder of record,  the Fund establishes an open account to
which all shares purchased are credited  together with any dividends and capital
gains  distributions which are paid in additional shares. See "Other Information
Concerning  Shares of the  Fund--Dividends  and  Capital  Gains  Distributions".
Although most shareholders elect not to receive share certificates, certificates
for full  shares can be obtained on  specific  written  request to the Fund.  No
certificates are issued for fractional shares.

        Shares may be purchased directly from the Distributor or through Service
Organizations  (see "Service  Organizations"  below) by clients of those Service
Organizations.  If an investor purchases shares through a Service  Organization,
the Service  Organization  must promptly transmit such order to the Fund so that
the order receives the net asset value next determined  following receipt of the
order.  Service  Organizations  may impose  minimum  customer  account and other
requirements  in addition  to those  imposed by the Fund.  Investors  wishing to
purchase shares through a Service  Organization should contact that organization
directly for appropriate instructions.  Other investors may purchase Fund shares
in the manner described below.

   
        Investors  desiring  to  purchase  shares  of the  Fund by  mail  should
complete an Account  Application  and mail the  Application and a check (in U.S.
dollars),  payable to "Domini Social Equity Fund",  to the Fund at the following
address:
    

                      Domini Social Equity Fund
                      P.O. Box 117
                      New York, New York 10274-0117

        An  investor  desiring to  purchase  shares by a wire  transfer of funds
should request its bank to transmit immediately available funds. The information
transmitted  with the funds must include the  investor's  name and address and a
statement  indicating  whether a new account is being  established  by such wire
transfer or whether such wire  transfer is being made by a  shareholder  with an
account  with the Fund.  If the  initial  purchase  by an  investor is by a wire
transfer of funds,  an account  number will be assigned to such  investor and an
Account  Application must  subsequently be completed and mailed to the Fund. For
purchases by wire transfer,  please call Fundamental Shareholder Services, Inc.,
the Fund's transfer agent (the "Transfer  Agent"),  at  1-800-782-4165 to obtain
wire transfer instructions.
   
         Shares of the Fund may be purchased by exchanging securities acceptable
to the Fund for  shares of the  Fund.  The Fund will not  accept a  security  in
exchange  for  Fund  shares  unless  (a) the  security  is  consistent  with the
investment  objective  and policies of the Fund and the  Portfolio,  and (b) the
security is deemed  acceptable  by the Manager  and the  Submanager.  Securities
offered in exchange for shares of the Fund will be valued in accordance with the
usual valuation procedure for the Fund. See "Net Asset Value".
    

        Investors  making  purchases  through a Service  Organization  should be
aware that it is the  responsibility  of the  Service  Organization  to transmit
orders for  purchases of shares by its  customers  to the Transfer  Agent and to
deliver  required  funds on a timely basis,  in accordance  with the  procedures
stated above.


                                              16

<PAGE>



        For  further  information  on how to  purchase  shares of the  Fund,  an
investor  should contact the  Distributor  (see back cover for address and phone
number).

                                   AUTOMATIC INVESTMENT PLAN

        The Fund offers a plan for regularly  investing specified dollar amounts
($25.00 minimum in monthly,  quarterly,  semi-annual or annual intervals) in the
Fund.  The  minimum  initial  investment  for an investor  investing  through an
automatic  investment plan is $500. If an Automatic Investment Plan is selected,
subsequent  investments  will be automatic and will continue  until such time as
the  Fund  and  the  investor's   bank  are  notified  to  discontinue   further
investments.  Due to the varying  procedures to prepare,  process and to forward
the bank  withdrawal  information to the Fund,  there may be a delay between the
time of the bank  withdrawal  and the time  the  money  reaches  the  Fund.  The
investment  in the Fund  will be made at the  public  offering  price  per share
determined on the day that both the check and bank  withdrawal data are received
in the form required by the Fund.  Further  information  about the plan and form
may be obtained  from the Transfer  Agent or the  Distributor  at the  telephone
numbers listed on the back cover of the prospectus.

                                INDIVIDUAL RETIREMENT ACCOUNTS

        Shares of the Fund may be used as a  funding  medium  for an  Individual
Retirement  Account ("IRA").  An Internal Revenue  Service-approved  IRA plan is
available  from  the  Distributor  naming  Investors  Bank &  Trust  Company  as
custodian.  The  minimum  initial  investment  for an IRA is $250;  the  minimum
subsequent  investment is $100.  IRAs are available to  individuals  who receive
compensation  or earned income and their spouses  whether or not they are active
participants in a tax-qualified or  Government-approved  retirement plan. An IRA
contribution by an individual who participates, or whose spouse participates, in
a  tax-qualified  or  Government-approved  retirement plan may not be deductible
depending upon various factors,  including the individual's income.  Individuals
also may establish an IRA to receive a "rollover"  contribution of distributions
from  another  IRA or a qualified  plan.  Tax advice  should be obtained  before
planning a rollover.

                                          REDEMPTIONS

        A shareholder may redeem all or any portion of the shares in its account
at any time at the net asset value next determined after a redemption request in
proper  form is  furnished  by the  shareholder  to the Fund.  Redemptions  will
therefore  be effected on the same day the  redemption  order is received by the
Fund  provided  such order is received and accepted on a Fund Business Day prior
to the time at which the net asset value of the Fund is determined. The proceeds
of a redemption  will be paid by the Fund in federal funds  normally on the next
Fund  Business  Day, but in any event within seven days if all checks in payment
for the  purchase of shares to be redeemed  have been cleared by the Fund (which
may take up to 15 days). Redemptions may be paid by the Fund by check or by wire
transfer if the appropriate  box on the Account  Application has been completed.
Instructions for wire redemptions are set forth in the Account  Application.  If
shares to be redeemed are held in certificate form, the certificates must be

                                              17

<PAGE>



         mailed  to the  Fund  at the  address  noted  below.  Do not  sign  the
certificates and, for protection, use registered mail.

        Redemptions  may be made by letter  to the Fund  specifying  the  dollar
amount or number of shares to be  redeemed  and the account  number.  The letter
must be  signed  in  exactly  the same way the  account  is  registered  and the
signatures must be guaranteed by an eligible signature guarantor.  In some cases
the Fund may require the furnishing of additional documents.

        Written requests should be mailed to the Fund at the following address:

                      Domini Social Equity Fund
                      P.O. Box 117
                      New York, New York 10274-0117

        For overnight deliveries, please use the following address:

                      Domini Social Equity Fund
                      c/o Fundamental Shareholder Services, Inc.
                      90 Washington Street
                      New York, New York 10006
                      (212) 635-5000

        An investor may also redeem  shares by telephone by calling the Transfer
Agent, at 1-800-782-4165,  if the appropriate box on the Account Application has
been completed.  The Fund, Transfer Agent and Distributor will not be liable for
any loss,  liability,  cost or expense  for acting upon  telephone  instructions
believed to be genuine.  Accordingly,  shareholders  will bear the risk of loss.
The  Fund  will  employ  reasonable  procedures  to  confirm  that  instructions
communicated by telephone are genuine, including, without limitation,  recording
telephone  instructions  and/or  requiring  the caller to  provide  some form of
personal  identification.  Failure to employ reasonable  procedures may make the
Fund  liable  for  any  losses  due  to  unauthorized  or  fraudulent  telephone
instructions.  The following  information must be supplied by the shareholder or
broker  at the time a  request  for a  telephone  redemption  is  made:  (1) the
shareholder's  account number; (2) the shareholder's social security number; and
(3) the name and  account  number  of the  shareholder's  designated  securities
dealer or bank.

        The Fund,  Transfer  Agent and  Distributor  reserve the right to refuse
wire or  telephone  redemptions.  Procedures  for  redeeming  shares  by wire or
telephone  may be  modified  or  terminated  at any  time  by  the  Fund  or the
Distributor.  A Service  Organization  may request a wire redemption  provided a
Wire  Authorization  Form is on file  with  the  Fund.  The  proceeds  of a wire
redemption will be sent to an account with a Service Organization  designated on
the appropriate  form. The Fund reserves the right to restrict or terminate wire
redemption  privileges.  Proceeds of wire redemptions will be transferred within
seven days after receipt of the request.

        The value of shares redeemed may be more or less than the  shareholder's
cost,  depending  on the Fund's  performance  during the period the  shareholder
owned

                                              18

<PAGE>



         its  shares.  Redemptions  of shares  are  taxable  events on which the
shareholder may recognize a gain or a loss.

        The right of any  shareholder  to receive  payment  with  respect to any
redemption may be suspended or the payment of the redemption  proceeds postponed
during any period in which the New York Stock  Exchange  is closed  (other  than
weekends or  holidays)  or trading on such  Exchange is  restricted,  or, to the
extent otherwise permitted by the 1940 Act, if an emergency exists.

                                  SYSTEMATIC WITHDRAWAL PLAN

        Any  shareholder  who owns shares of the Fund with an aggregate value of
$10,000 or more may establish a Systematic Withdrawal Plan under which he or she
redeems at net asset value the number of full and  fractional  shares which will
produce  the  monthly,  quarterly,  semi-annual  or  annual  payments  specified
(minimum  $50.00 per payment).  Depending on the amounts  withdrawn,  systematic
withdrawals  may  deplete  the  investor's  principal.  Investors  contemplating
participation  in this Plan should  consult  their tax  advisers.  No additional
charge to the shareholder is made for this service.

                                          TAX MATTERS

        Each  year  the Fund  intends  to  qualify  as a  "regulated  investment
company"  under  Subchapter M of the Internal  Revenue Code of 1986,  as amended
(the "Code").  Provided the Fund qualifies as a "regulated  investment  company"
under the Code, and  distributes  all of its net investment  income and realized
capital gains to shareholders in accordance with the timing requirements imposed
by the Code,  the Fund will not be required to pay any federal  income or excise
taxes.  The  Portfolio  will also not be required  to pay any federal  income or
excise  taxes.  However,  shareholders  of the Fund  normally  will  have to pay
federal  income taxes,  and any state or local taxes,  on  distributions  of net
investment income and net realized capital gains from the Fund. After the end of
each calendar year, each  shareholder  receives  information for tax purposes on
the  distributions  received  during that  calendar  year  including the portion
taxable as ordinary income,  the portion taxable as long-term capital gains, the
portion, if any, representing a return of capital (which is generally treated as
a reduction  in basis  rather than  taxable  income) and the amount of dividends
eligible for the corporate dividends received deduction.

        Dividends and  distributions to shareholders will be treated in the same
manner for federal income tax purposes whether received in cash or reinvested in
additional  shares of the Fund.  Distributions  of net capital gains (I.E.,  the
excess of net long-term  capital gains over net short-term  capital losses) will
cause any  short-term  capital  loss  realized  on the  disposition  by a Fund's
shareholder  of Fund shares held for six or fewer months to be  recharacterized,
to the extent of those  distributions,  as  long-term  capital  loss.  Under the
back-up  withholding rules of the Code,  certain  shareholders may be subject to
31% withholding of federal income tax on distributions  and payments made by the
Fund.  Generally,  shareholders are subject to back-up  withholding if they have
not provided the Fund with a correct taxpayer  identification number and certain
other certifications.

                                              19

<PAGE>




        The Fund is  organized  as a  Massachusetts  business  trust and,  under
current law, is not liable for any income or franchise  tax in the  Commonwealth
of Massachusetts as long as it qualifies as a regulated investment company under
the Code.

        The  foregoing  discussion is intended for general  information  only. A
prospective  shareholder  should  consult with its own tax advisor as to the tax
consequences of an investment in the Fund including the status of  distributions
from the Fund under applicable state or local law.

                        OTHER INFORMATION CONCERNING SHARES OF THE FUND

                                        NET ASSET VALUE

        The Fund  determines  the net asset  value of each of its shares on each
Fund Business Day.  This  determination  is made once during each such day as of
the close of regular  trading on the New York Stock  Exchange by  deducting  the
amount of the Fund's  liabilities  from the value of its assets and dividing the
difference by the number of shares of the Fund outstanding.

        Since the Fund will invest all of its assets in the Portfolio, the value
of the Fund's  assets will be equal to the value of its  beneficial  interest in
the  Portfolio.  The net asset value of the  Portfolio is  determined  as of the
close of regular  trading on the New York Stock  Exchange on each Fund  Business
Day, by deducting the amount of the  Portfolio's  liabilities  from the value of
its assets. The value of the Fund's beneficial interest in the Portfolio will be
determined  by  multiplying  the  net  asset  value  of  the  Portfolio  by  the
percentage,  effective for that day,  which  represents  the Fund's share of the
aggregate  beneficial  interests in the Portfolio.  (See "Description of Shares,
Voting Rights and Liabilities" below.)

        Equity  securities  held by the  Portfolio  are  valued at the last sale
price on the exchange on which they are primarily traded or on the NASDAQ system
for  unlisted  national  market  issues,  or at the last  quoted  bid  price for
securities  in  which  there  were  no  sales  during  the  day or for  unlisted
securities not reported on the NASDAQ system. If the Portfolio  purchases option
contracts,  such option  contracts which are traded on commodities or securities
exchanges are normally  valued at the settlement  price on the exchange on which
they are traded.  Short-term  obligations with remaining maturities of less than
sixty  days are  valued at  amortized  cost,  which  constitutes  fair  value as
determined  by the Board of  Trustees  of the  Portfolio.  Portfolio  securities
(other than short-term  obligations with remaining maturities of less than sixty
days) for which there are no such  quotations or  valuations  are valued at fair
value as  determined  in good faith by or at the  direction  of the  Portfolio's
Board of Trustees.

                           DIVIDENDS AND CAPITAL GAINS DISTRIBUTIONS

        Substantially  all of the Fund's net income from  dividends and interest
is paid to the  Fund's  shareholders  semi-annually  (in the  months of June and
December) as a dividend. For this purpose, the Fund's "net income from dividends
and interest" consists of all income from dividends and interest accrued on the

                                              20

<PAGE>



assets of the Fund (I.E.,  the Fund's share of the  Portfolio's  net income from
dividends  and  interest),  less all actual  and  accrued  expenses  of the Fund
determined in accordance with generally accepted accounting principles.

        The Fund also  declares a long-term  capital gains  distribution  to its
shareholders on an annual basis, usually in December, if the Fund's share of the
Portfolio's  profits during the year from the sale of securities held for longer
than the  applicable  long-term  capital gains holding period exceeds the Fund's
share of the  Portfolio's  losses  during such year from the sale of  securities
together with the Fund's share of the  Portfolio's  net capital  losses  carried
forward  from prior years (to the extent not used to offset  short-term  capital
gains).  The  Fund's  share of the  Portfolio's  net  short-term  capital  gains
realized during each fiscal year will also be distributed at that time.

        The Fund will also make additional  distributions to its shareholders to
the extent  necessary to avoid  application of the 4%  nondeductible  excise tax
created by the Tax Reform  Act of 1986 on certain  undistributed  income and net
capital gains of mutual funds.

        A  shareholder  of the Fund may elect to receive  dividends  and capital
gains  distributions  in either  cash or  additional  shares.  Unless  otherwise
specified  in  writing  by  a  shareholder,  all  dividends  and  capital  gains
distributions will be reinvested in additional shares.

                                           EXPENSES

        The  Fund  and the  Portfolio  each  are  responsible  for all of  their
respective expenses, including the compensation of their respective Trustees who
are not  interested  persons of the Fund or the  Portfolio;  governmental  fees;
interest  charges;  taxes;  membership dues in the Investment  Company Institute
allocable  to the  Fund or the  Portfolio;  fees  and  expenses  of  independent
auditors,  of legal counsel and of any transfer agent,  custodian,  registrar or
dividend disbursing agent of the Fund or the Portfolio;  insurance premiums; and
expenses of  calculating  the net asset value of the  Portfolio and of shares of
the Fund.

   
        The Fund will also pay  sponsorship  fees  payable to the  Sponsor;  all
expenses  of  distributing  and  redeeming  shares  and  servicing   shareholder
accounts;  expenses of preparing,  printing and mailing  prospectuses,  reports,
notices,  proxy  statements  and  reports to  shareholders  and to  governmental
offices and commissions; expenses of shareholder meetings; and expenses relating
to the issuance,  registration  and  qualification of shares of the Fund and the
preparation, printing and mailing of prospectuses for such purposes.

        Under the Sponsorship Agreement, DSI's fee will be reduced to the extent
necessary to keep the aggregate annual operating expenses of the Fund (including
the Fund's share of the  Portfolio's  expenses but excluding  brokerage fees and
commissions,  interest,  taxes and other  extraordinary  expenses) at no greater
than 0.98% of the  average  daily net assets of the Fund  through  [November  1,
1998].
    

        The Portfolio  will also pay the expenses  connected with the execution,
recording and settlement of security transactions; fees and expenses of the

                                              21

<PAGE>



   
Portfolio's  custodian for all services to the Portfolio,  including safekeeping
of funds and securities and maintaining required books and accounts; expenses of
preparing  and mailing  reports to  investors  and to  governmental  offices and
commissions;  expenses of meetings of investors;  and the investment  management
fees payable to the Manager .

         Under the Management Agreement, DSI's fee will be reduced to the extent
necessary  to keep the  aggregate  annual  operating  expenses of the  Portfolio
(excluding   brokerage  fees  and   commissions,   interest,   taxes  and  other
extraordinary expenses) at no greater than 0.20% of the average daily net assets
of the Portfolio through [November 1, 1998].

        There is no assurance that DSI will maintain the fee reductions pursuant
to the Management  Agreement or the Sponsorship  Agreement  beyond the specified
date.
    

                                DISTRIBUTION PLAN AND AGREEMENT

        The Trustees of the Fund have adopted a Distribution  Plan in accordance
with Rule  12b-1  under  the 1940 Act after  having  concluded  that  there is a
reasonable  likelihood that the Distribution  Plan will benefit the Fund and its
shareholders.  As  contemplated  by the  Distribution  Plan,  Signature,  as the
Distributor, acts as agent of the Fund in connection with the offering of shares
of the Fund pursuant to a Distribution Agreement. Signature, as the Distributor,
acts  as  the  principal  underwriter  of  shares  of the  Fund  and  bears  the
compensation  of personnel  necessary to provide such  services and all costs of
travel, office expenses (including rent and overhead) and equipment.

         Under the Distribution Plan,  Signature may receive a fee from the Fund
at an annual rate not to exceed 0.25% of the Fund's  average daily net assets in
anticipation  of, or as  reimbursement  for,  costs  and  expenses  incurred  in
connection   with  the  sale  of  shares  of  the  Fund,  such  as  payments  to
broker-dealers who advise shareholders regarding the purchase, sale or retention
of shares of the Fund, payments to employees of Signature,  advertising expenses
and the expenses of printing and distributing  prospectuses and reports used for
sales  purposes,  expenses of preparing and printing sales  literature and other
distribution-related  expenses.  Signature  will  provide to the Trustees of the
Fund a quarterly written report of amounts expended by it under the Distribution
Plan and the purposes for which such expenditures were made.

   
        DSI has informed the Fund's Board of Trustees  that it, or an affiliate,
intends to become  qualified as a  broker-dealer  and transfer  agent within the
next year. In that event,  the Trustees would consider  appointing  DSI, or such
affiliate, the distributor and/or transfer agent for the Fund.
    

                     DESCRIPTION OF SHARES, VOTING RIGHTS AND LIABILITIES

        The  Fund's  Declaration  of  Trust  permits  the  Trustees  to issue an
unlimited number of full and fractional  Shares of Beneficial  Interest (without
par value) and to divide or combine the shares  into a greater or lesser  number
of shares without thereby changing the proportionate beneficial interests in the
Fund.

                                       22

<PAGE>

  Each share  represents an equal  proportionate  interest in the Fund with
each other share.  Shares have no pre-emptive or conversion rights.  Shares when
issued  are  fully  paid  and   non-assessable,   except  as  set  forth  below.
Shareholders  are  entitled  to one vote for each  share  held.  The Fund is not
required to hold annual meetings of shareholders  but the Fund will hold special
meetings of shareholders when in the judgment of the Trustees it is necessary or
desirable to submit  matters for a shareholder  vote.  Upon  liquidation  of the
Fund,  shareholders would be entitled to share pro rata in the net assets of the
Fund available for distribution to shareholders. Shareholders have under certain
circumstances  the right to communicate  with other  shareholders  in connection
with  requesting  a meeting of  shareholders  for the purpose of removing one or
more Trustees.  Shareholders also have under certain  circumstances the right to
remove one or more Trustees without a meeting.

        The Fund  reserves the right to create and issue any number of series of
shares, in which case the shares of each series would participate equally in the
earnings,  dividends and assets of the particular series (except for differences
among any  classes of shares of any  series).  Currently,  the Fund has only one
series of shares,  all of which are of the same  class.  The Fund may  establish
additional  classes  of any series of shares.  For  example,  the Fund may offer
another class of shares that has lower annual  distribution  fees or shareholder
servicing fees. Prior to offering another class of shares, the Fund would either
issue a new  prospectus  and statement of additional  information  or amend this
Prospectus and the Statement of Additional Information to reflect such issuance.

        The Fund is an entity  of the type  commonly  known as a  "Massachusetts
business trust". Under Massachusetts law,  shareholders of such a business trust
may, under certain circumstances,  be held personally liable as partners for its
obligations.  However,  the risk of a shareholder  incurring  financial  loss on
account of  shareholder  liability  is limited  to  circumstances  in which both
inadequate  insurance  existed  and the  Fund  itself  was  unable  to meet  its
obligations.

         The Portfolio,  in which all of the  investable  assets of the Fund are
invested,  is organized as a trust under the laws of the State of New York.  The
Portfolio's  Declaration  of Trust  provides  that the Fund and  other  entities
investing in the Portfolio (I.E., other investment companies,  insurance company
separate accounts 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  existed and the Portfolio  itself was unable to meet
its obligations.  Accordingly, the Fund's Trustees believe that neither the Fund
nor  its  shareholders  will be  adversely  affected  by  reason  of the  Fund's
investing in the Portfolio. In addition,  whenever the Fund is requested to vote
on a fundamental  policy of the  Portfolio,  the Fund will hold a meeting of its
shareholders and will cast its vote as instructed by its shareholders.

        Each investor in the Portfolio, including the Fund, may add to or reduce
its  investment in the Portfolio on each Fund Business Day. At the close of each
such Fund Business Day, the value of each investor's  beneficial interest in the
Portfolio will be determined by multiplying the net asset value of the Portfolio

                                       23

<PAGE>

by the  percentage,  effective for that day, which  represents  that  investor's
share of the aggregate beneficial  interests in the Portfolio.  Any additions or
withdrawals,  which are to be  effected as of the close of business on that day,
will then be effected.  The  investor's  percentage of the aggregate  beneficial
interests in the Portfolio will then be  re-computed as the percentage  equal to
the  fraction  (i) the  numerator  of  which  is the  value  of such  investor's
investment  in the  Portfolio  as of the close of  business  on such 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 effected as of the close of business
on such day, and (ii) the  denominator of which is the aggregate net asset value
of the  Portfolio as of the close of business on such day plus or minus,  as the
case  may be,  the  amount  of the net  additions  to or  withdrawals  from  the
aggregate  investments in the Portfolio 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  as of the  close  of  business  on the
following Fund Business Day.

                      SERVICE ORGANIZATIONS, TRANSFER AGENT AND CUSTODIAN

                                     SERVICE ORGANIZATIONS

        The Fund may also contract with various banks,  trust  companies  (other
than Mellon  Equity),  broker-dealers  (other than Signature) or other financial
organizations  (collectively,  "Service  Organizations") to provide services for
the Fund, such as maintaining shareholder accounts and records. The Fund may pay
fees to  Service  Organizations  (which  may vary  depending  upon the  services
provided)  in amounts up to an annual rate of 0.25% of the daily net asset value
of  the  shares  of the  Fund  owned  by  shareholders  with  whom  the  Service
Organization has a servicing relationship.

         Some  Service   Organizations   may  impose   additional  or  different
conditions on their clients such as requiring  their clients to invest more than
the minimum  initial  investment  specified by the Fund or charging a direct fee
for servicing.  If imposed, these fees would be in addition to any amounts which
might be paid to the Service Organization by the Fund. Each Service Organization
has agreed to transmit to its clients a schedule of any such fees.  Shareholders
using Service Organizations are urged to consult them regarding any such fees or
conditions.

        The  Glass-Steagall  Act and other  applicable laws, among other things,
prohibit  banks  from  engaging  in the  business  of  underwriting,  selling or
distributing securities.  There is currently no precedent prohibiting banks from
performing   administrative  and  shareholder  servicing  functions  as  Service
Organizations.  However, judicial or administrative decisions or interpretations
of such  laws,  as well as  changes  in  either  federal  or state  statutes  or
regulations   relating  to  the  permissible   activities  of  banks  and  their
subsidiaries  or  affiliates,  could  prevent a bank Service  Organization  from
continuing to perform all or a part of its servicing activities.  If a bank were
prohibited from so acting, its shareholder  clients would be permitted to remain
shareholders of the Fund and  alternative  means for continuing the servicing of
such shareholders  would be sought.  It is not expected that shareholders  would

                                       24

<PAGE>

suffer  any  adverse  financial  consequences  as  a  result  of  any  of  these
occurrences.

                                 TRANSFER AGENT AND CUSTODIAN

        The Fund has entered into a Transfer Agency  Agreement with  Fundamental
Shareholder  Services,  Inc.  ("FSSI"),  pursuant to which FSSI acts as Transfer
Agent for the Fund. The Transfer Agent maintains an account for each shareholder
of the Fund,  performs  other  transfer  agency  functions  and acts as dividend
disbursing agent for the Fund. Pursuant to Custodian Agreements,  Investors Bank
& Trust Company  ("IBT") acts as the custodian of the Fund's assets (I.E.,  cash
and  the  Fund's  interest  in  the  Portfolio)  and  as  the  custodian  of the
Portfolio's assets (the "Custodian").  The Custodian's  responsibilities include
safeguarding and controlling the Portfolio's  cash and securities,  handling the
receipt and delivery of securities,  determining income and collecting  interest
on  the  Portfolio's  investments,  maintaining  books  of  original  entry  for
portfolio  and fund  accounting  and  other  required  books and  accounts,  and
calculating  the daily net asset value of the  Portfolio and the daily net asset
value of shares of the Fund.  Securities  held by the Portfolio may be deposited
into certain  securities  depositaries.  The  Custodian  does not  determine the
investment  policies of the Portfolio or decide which  securities  the Portfolio
will buy or sell.  The  Portfolio  may,  however,  invest in  securities  of the
Custodian   and  may  deal  with  the   Custodian  as  principal  in  securities
transactions.  IBT also serves as transfer  agent for the  Portfolio.  For their
services,  FSSI and IBT will receive such  compensation as may from time to time
be agreed upon by each of them and the Fund or the Portfolio.

                                   ------------------------
   
         The Fund's Statement of Additional  Information  contains more detailed
information about the Fund and the Portfolio,  including  information related to
(i) investment policies and restrictions of the Fund and the Portfolio, (ii) the
Trustees,  officers,  Manager of the  Portfolio  and Sponsor of the Fund , (iii)
portfolio transactions, (iv) the Fund's shares, including rights and liabilities
of shareholders,  (v) additional performance  information,  including the method
used to calculate  yield and total rate of return  quotations of the Fund,  (vi)
determination  of the net  asset  value of  shares  of the  Fund,  and (vii) the
audited financial statements of the Fund and the Portfolio at July 31, 1997.
    

                                              25

<PAGE>



DOMINI SOCIAL EQUITY FUND
   
[11 West 25th Street
 New York, NY 10010]
    





PORTFOLIO INVESTMENT       CUSTODIAN:
   
 MANAGER AND FUND SPONSOR:  Investors Bank &
 Domini Social                Trust Company
   Investments LLC          200 Clarendon Street
[11 West 25th Street       Boston, MA  02116
 New York, NY 10010]
[(___) ___-____]           AUDITORS:
    
                           KPMG Peat Marwick LLP
   
PORTFOLIO INVESTMENT       99 High Street
 SUBMANAGER:                Boston, MA 02110
    
Mellon Equity
  Associates               LEGAL COUNSEL:
500 Grant Street           Bingham, Dana & Gould LLP
Suite 3700                 150 Federal Street
Pittsburgh, PA             Boston, MA 02110
15258-0001
                           TRANSFER AGENT:
                            Fundamental Shareholder
DISTRIBUTOR:                 Services, Inc.
Signature Broker-          90 Washington Street
  Dealer Services, Inc.    New York, NY 10006
6 St. James Avenue
Boston, MA 02116
(800) 762-6814

DOMINI SOCIAL EQUITY FUND
PROSPECTUS
- -------------------------
   
NOVEMBER  28, 1997
    
[starfish]

INVESTING FOR GOODSM

[oceanic/starfish graphic]
[recycled symbol] Printed on Recycled Paper
   
[DSI201D]
    


<PAGE>
   
 DSI195E
    


                              STATEMENT OF ADDITIONAL INFORMATION

   
                                      NOVEMBER  28, 1997
    

                                   DOMINI SOCIAL EQUITY FUND


TABLE OF CONTENTS                                                          PAGE

1. The Fund...................................................................2

2. Investment Objective, Policies and Restrictions............................2

3. Performance Information....................................................9

4. Determination of Net Asset Value; Valuation of Portfolio
Securities...................................................................10

5. Management of the Fund and the Portfolio..................................11

   
6. Independent Auditors .....................................................[]

7. Taxation..................................................................[]

8. Portfolio Transactions and Brokerage Commissions..........................[]

9. Description of Shares, Voting Rights and Liabilities .....................[]

10. Financial Statements ....................................................[]
    


DOMINI SOCIAL EQUITY FUND
   
         [11 West 25th Street, New York, New York 10010] [(800) 762-6814]

         This Statement of Additional  Information sets forth  information which
may be of interest to  investors  but which is not  necessarily  included in the
Fund's  Prospectus  dated November 28, 1997, as amended from time to time.  This
Statement  of  Additional  Information  should be read in  conjunction  with the
Prospectus,  a copy of which may be obtained by an  investor  without  charge by
contacting Signature  Broker-Dealer Services,  Inc., the Fund's distributor,  at
(800) 762-6814.
    



         This  Statement of Additional  Information  is NOT a prospectus  and is
authorized  for  distribution  to  prospective  investors  only if  preceded  or
accompanied  by an effective  prospectus  and should be read only in conjunction
with such prospectus.


<PAGE>



                                         1.  THE FUND

         Domini  Social  Equity  Fund  (the  "Fund")  is a  no-load  diversified
open-end  management  investment company which was organized as a business trust
under the laws of the  Commonwealth of  Massachusetts  on June 7, 1989. The Fund
offers to buy back (redeem) its shares from its  shareholders at any time at net
asset value.  References  in this  Statement of  Additional  Information  to the
"Prospectus"  are  to  the  current  Prospectus  of  the  Fund,  as  amended  or
supplemented from time to time.

   
         Domini  Social   Investments   LLC  ("DSI")  the  Fund's  sponsor  (the
"Sponsor"),  supervises  the overall  administration  of the Fund.  The Board of
Trustees  provides broad supervision over the affairs of the Fund. Shares of the
Fund  are  continuously   sold  by  Signature   Broker-Dealer   Services,   Inc.
("Signature"),  the Fund's distributor (the "Distributor").  The minimum initial
investment  is  $1,000,  except  that  the  minimum  initial  investment  for an
Individual  Retirement  Account is $250 and the minimum  initial  investment for
investors who invest through an automatic  investment  plan is $500. An investor
should  obtain from the  Distributor,  and should read in  conjunction  with the
Prospectus,  the materials describing the procedures under which Fund shares may
be purchased and redeemed.

         The Fund seeks to achieve its investment objective by investing all its
assets in the Domini Social Index  Portfolio  (the  "Portfolio"),  a diversified
open-end management  investment company having the same investment  objective as
the Fund. DSI is the  Portfolio's  investment  manager (the  "Manager").  Mellon
Equity  Associates  ("Mellon Equity") is the Portfolio's  investment  submanager
(the "Submanager"). Kinder, Lydenberg, Domini & Co., Inc. ("KLD") determines the
composition  of the  Domini 400  Social  IndexSM.  The  Submanager  manages  the
investments of the Portfolio from day to day in accordance  with the Portfolio's
investment  objective and policies.  "DominiSM" and "Domini 400 Social  IndexSM"
are service marks of KLD.
    
                      2.  INVESTMENT OBJECTIVE, POLICIES AND RESTRICTIONS

                                     INVESTMENT OBJECTIVE

   
         The  investment  objective  of the Fund is to provide its  shareholders
with long-term total return  (reflecting both dividend and price  performance of
the Fund) which  corresponds to the performance of the Domini 400 Social IndexSM
(referred to herein as the "Index" or the "Domini Social Index").  There can, of
course, be no assurance that the Fund will achieve its investment objective. The
investment  objective of the Fund may be changed without  approval by the Fund's
shareholders.
    
                                      INVESTMENT POLICIES

         The Fund seeks to achieve its investment objective by investing all its
assets in the Portfolio,  which has the same  investment  objective as the Fund.
The Fund may withdraw its  investment  in the Portfolio at any time if the Board
of Trustees of the Fund  determines that it is in the best interests of the Fund
to do so. Upon any such  withdrawal,  the Board of Trustees  would consider what

                                       2

<PAGE>

action might be taken,  including the investment of all the investable assets of
the  Fund in  another  pooled  investment  entity  having  the  same  investment
objective as the Fund, or the  retaining of an investment  adviser to manage the
Fund's assets in accordance  with the investment  policies  described below with
respect to the Portfolio.  The approval of the Fund's  shareholders would not be
required to change any of the Fund's investment policies.

         The following  supplements the  information  concerning the Portfolio's
investment  policies  contained  in the  Prospectus  and should  only be read in
conjunction therewith.

         A company  which is not included in the Standard & Poor's 500 Composite
Stock Price Index (the "S&P 500") may be  included  in the Domini  Social  Index
primarily in order to afford  representation to an industrial sector which would
otherwise  be  under-represented  in the Index.  Because of the social  criteria
applied  in the  selection  of stocks  comprising  the  Index,  industry  sector
weighting in the Index may vary materially from the industry weightings in other
stock indices, including the S&P 500.

         With  respect  to stocks of foreign  issuers,  the  Portfolio  does not
purchase securities which the Portfolio believes, at the time of purchase,  will
be subject to exchange controls or foreign withholding taxes; however, there can
be no  assurance  that such laws may not  become  applicable  to  certain of the
Portfolio's  investments.  In the event unforeseen  exchange controls or foreign
withholding   taxes  are  imposed  with  respect  to  any  of  the   Portfolio's
investments, the effect may be to reduce the income received by the Portfolio on
such investments.

         Although  neither the Fund nor the Portfolio has any current  intention
to do so,  the Fund and the  Portfolio  may  invest in  securities  which may be
resold pursuant to Rule 144A under the Securities Act of 1933 (the "1933 Act").

         It is a  fundamental  policy of the Portfolio and the Fund that neither
the  Portfolio  nor the Fund may invest more than 25% of the total assets of the
Portfolio or the Fund, respectively, in any one industry, although the Fund will
invest  all of its  assets in the  Portfolio,  and the  Portfolio  may and would
invest  more than 25% of its assets in an  industry  if stocks in that  industry
were to comprise more than 25% of the Domini Social Index.  Based on the current
composition of the Index, this is considered  highly unlikely.  If the Portfolio
were to concentrate its investments in a single industry,  the Portfolio and the
Fund would be more susceptible to any single  economic,  political or regulatory
occurrence  than  would  be  another   investment   company  which  was  not  so
concentrated.

         LOANS OF SECURITIES:  The Portfolio may lend its securities to brokers,
dealers  and  financial  institutions,  provided  that (1) the  loan is  secured
continuously by collateral,  consisting of U.S. Government securities or cash or
letters of credit,  which is marked to the market daily to ensure that each loan
is fully collateralized at all times; (2) the Portfolio may at any time call the
loan and obtain the return of the securities  loaned within three business days;
(3) the Portfolio  will receive any interest or dividends paid on the securities
loaned;  and (4) the aggregate market value of securities loaned will not at any
time exceed 30% of the total assets of the Portfolio.

                                       3

<PAGE>


         The Portfolio will earn income for lending its securities either in the
form of fees received from the borrower of the securities or in connection  with
the investment of cash collateral in short-term money market instruments.  Loans
of securities involve a risk that the borrower may fail to return the securities
or may fail to provide additional collateral.

   
         In connection with lending securities, the Portfolio may pay reasonable
finders,  administrative  and  custodial  fees. No such fees will be paid to any
person if it or any of its  affiliates is  affiliated  with the  Portfolio,  the
Manager or the Submanager.
    

         Although the Portfolio  reserves the right to lend its  securities,  it
has no current intention of doing so in the foreseeable future.

         RISK FACTORS INVOLVED IN OPTION  CONTRACTS:  Although it has no current
intention  to do so,  the  Portfolio  may  in  the  future  enter  into  certain
transactions  in stock  options  for the  purpose  of hedging  against  possible
increases in the value of  securities  which are expected to be purchased by the
Portfolio or possible  declines in the value of securities which are expected to
be sold by the Portfolio.  Generally,  the Portfolio  would only enter into such
transactions  on a  short-term  basis  pending  readjustment  of its holdings of
underlying stocks.

         The  purchase of an option on an equity  security  provides  the holder
with the right, but not the obligation,  to purchase the underlying security, in
the case of a call option, or to sell the underlying security,  in the case of a
put option,  for a fixed price at any time up to a stated  expiration  date. The
holder  is  required  to pay a  non-refundable  premium,  which  represents  the
purchase price of the option. The holder of an option can lose the entire amount
of the premium,  plus related  transaction costs, but not more. Upon exercise of
the option,  the holder is required to pay the purchase  price of the underlying
security in the case of a call option, or deliver the security in return for the
purchase price in the case of a put option.

         Prior to exercise or expiration,  an option  position may be terminated
only by entering into a closing  purchase or sale  transaction.  This requires a
secondary   market  on  the  exchange  on  which  the  position  was  originally
established.  While the  Portfolio  would  establish an option  position only if
there  appears  to be a  liquid  secondary  market  therefor,  there  can  be no
assurance  that such a market will exist for any particular  option  contract at
any specific time. In that event, it may not be possible to close out a position
held by the Portfolio,  and the Portfolio  could be required to purchase or sell
the instrument  underlying an option,  make or receive a cash settlement or meet
ongoing  variation  margin  requirements.  The  inability  to close  out  option
positions  also  could  have  an  adverse  impact  on  the  Portfolio's  ability
effectively to hedge its portfolio.

   
         Each exchange on which option  contracts  are traded has  established a
number of  limitations  governing the maximum  number of positions  which may be
held by a trader,  whether  acting alone or in concert with others.  The Manager
does not believe that these  trading and  position  limits would have an adverse
impact on the possible use of hedging strategies by the Portfolio.
    

                                       4

<PAGE>


         The approval of the Fund and of the other investors in the Portfolio is
not required to change the  investment  objective or any of the  non-fundamental
investment  policies  discussed  above,   including  those  concerning  security
transactions.

                                    INVESTMENT RESTRICTIONS

         The Fund and the  Portfolio  have each adopted the  following  policies
which may not be changed  without  approval  by holders  of a  "majority  of the
outstanding voting securities" of the Fund or the Portfolio, respectively, which
as used in this Statement of Additional Information means the vote of the lesser
of (i) 67% or more of the  outstanding  "voting  securities"  of the Fund or the
Portfolio,  respectively,  present at a meeting, if the holders of more than 50%
of  the  outstanding   "voting   securities"  of  the  Fund  or  the  Portfolio,
respectively,  are present or represented by proxy, or (ii) more than 50% of the
outstanding "voting securities" of the Fund or the Portfolio,  respectively. The
term "voting  securities"  as used in this  paragraph has the same meaning as in
the Investment Company Act of 1940, as amended (the "1940 Act").

         Except as described below,  whenever the Fund is requested to vote on a
change in the investment  restrictions  of the  Portfolio,  the Fund will hold a
meeting of its shareholders and will cast its vote proportionately as instructed
by its  shareholders.  However,  subject to applicable  statutory and regulatory
requirements, the Fund would not request a vote of its shareholders with respect
to (a) any proposal  relating to the  Portfolio,  which  proposal,  if made with
respect to the Fund, would not require the vote of the shareholders of the Fund,
or (b) any  proposal  with  respect to the  Portfolio  that is  identical in all
material   respects  to  a  proposal  that  has  previously   been  approved  by
shareholders  of the Fund.  Any proposal  submitted to holders in the Portfolio,
and that is not  required  to be voted on by  shareholders  of the  Fund,  would
nevertheless be voted on by the Trustees of the Fund.

        Neither the Fund nor the Portfolio may:

         (1) borrow money,  except that as a temporary measure for extraordinary
or emergency  purposes either the Fund or the Portfolio may borrow an amount not
to  exceed  1/3 of the  current  value  of the  net  assets  of the  Fund or the
Portfolio,  respectively,  including the amount borrowed (moreover,  neither the
Fund  nor the  Portfolio  may  purchase  any  securities  at any  time at  which
borrowings  exceed  5% of the  total  assets  of  the  Fund  or  the  Portfolio,
respectively,  taken in each  case at market  value)  (it is  intended  that the
Portfolio  would borrow money only from banks and only to  accommodate  requests
for the withdrawal of all or a portion of a beneficial interest in the Portfolio
while effecting an orderly  liquidation of securities);  for additional  related
restrictions,  see  clause  (i) under  the  caption  "Non-Fundamental  State and
Federal Restrictions" below;

         (2) purchase  any  security or evidence of interest  therein on margin,
except that either the Fund or the Portfolio may obtain such  short-term  credit
as may be necessary for the  clearance of purchases and sales of securities  and
except  that  either  the Fund or the  Portfolio  may make  deposits  of initial
deposit and

                                       5

<PAGE>

variation margin in connection with the purchase, ownership, holding
or sale of options;

         (3) write any put or call option or any combination  thereof,  provided
that this shall not  prevent  (i) the  purchase,  ownership,  holding or sale of
warrants  where the  grantor of the  warrants  is the  issuer of the  underlying
securities,  or (ii) the  purchase,  ownership,  holding  or sale of  options on
securities;

         (4) underwrite securities issued by other persons, except that the Fund
may invest all or any portion of its assets in the Portfolio and except  insofar
as either the Fund or the Portfolio  may  technically  be deemed an  underwriter
under the 1933 Act in selling a security;

         (5) make loans to other  persons  except  (a)  through  the  lending of
securities  held by either the Fund or the  Portfolio and provided that any such
loans not exceed 30% of its total assets  (taken in each case at market  value),
or (b) through the use of  repurchase  agreements  or the purchase of short-term
obligations  and  provided  that not more  than  10% of its net  assets  will be
invested  in  repurchase  agreements  maturing  in more  than  seven  days;  for
additional related restrictions, see paragraph (6) immediately following;

         (6) invest in  securities  which are  subject  to legal or  contractual
restrictions  on resale (other than repurchase  agreements  maturing in not more
than seven days and other than  securities  which may be resold pursuant to Rule
144A under the 1933 Act if the Board of Trustees determines that a liquid market
exists for such  securities) if, as a result  thereof,  more than 10% of its net
assets  (taken at  market  value)  would be so  invested  (including  repurchase
agreements  maturing in more than seven  days),  except that the Fund may invest
all or any portion of its assets in the Portfolio;

         (7)  purchase  or  sell  real  estate  (including  limited  partnership
interests but excluding securities secured by real estate or interests therein),
interests in oil, gas or mineral leases,  commodities or commodity  contracts in
the ordinary  course of business (the Fund and Portfolio  reserve the freedom of
action to hold and to sell real estate  acquired as a result of the ownership of
securities by the Fund or the Portfolio);

         (8) make short sales of securities or maintain a short position, unless
at all  times  when a short  position  is open  the  Fund or the  Portfolio,  as
applicable,  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 5% of the  Fund's  or the  Portfolio's,  as
applicable,  net  assets  (taken  in  each  case  at  market  value)  is held as
collateral  for such sales at any one time (it is the present  intention  of the
Portfolio  and the Fund to make such  sales only for the  purpose  of  deferring
realization of gain or loss for federal income tax purposes);

         (9) issue any senior security (as that term is defined in the 1940 Act)
if such  issuance is  specifically  prohibited  by the 1940 Act or the rules and
regulations  promulgated  thereunder,  except as  appropriate to evidence a debt
incurred without violating paragraph (1) above;

                                       6

<PAGE>


         (10) as to 75% of its assets, purchase securities of any issuer if such
purchase at the time thereof would cause more than 5% of the  Portfolio's or the
Fund's,  as  applicable,  assets  (taken at market  value) to be invested in the
securities  of such  issuer  (other than  securities  or  obligations  issued or
guaranteed by the United States or any agency or  instrumentality  of the United
States),  except that for purposes of this  restriction  the issuer of an option
shall not be deemed to be the issuer of the  security or  securities  underlying
such  contract  and except  that the Fund may  invest all or any  portion of its
assets in the Portfolio; or

        (11) invest more than 25% of its assets in any one  industry  unless the
stocks in a single  industry were to comprise more than 25% of the Domini Social
Index, in which case the Portfolio or the Fund, as applicable,  will invest more
than 25% of its assets in that industry, and except that the Fund may invest all
of its assets in the Portfolio.

         NON-FUNDAMENTAL STATE AND FEDERAL RESTRICTIONS: In order to comply with
certain state and federal statutes and regulatory policies, neither the Fund nor
the Portfolio will as a matter of operating policy:

(i) borrow  money for any  purpose  in excess of 10% of the total  assets of the
Fund or the  Portfolio,  respectively  (taken in each  case at cost)  (moreover,
neither the Fund nor the Portfolio  will purchase any  securities at any time at
which borrowings exceed 5% of its total assets (taken at market value)),

         (ii) pledge,  mortgage or hypothecate  for any purpose in excess of 10%
of the net assets of the Fund or the Portfolio, respectively (taken in each case
at market value), provided that collateral arrangements with respect to options,
including deposits of initial deposit and variation margin, are not considered a
pledge of assets for purposes of this restriction,

         (iii) sell any  security  which it does not own unless by virtue of its
ownership  of other  securities  it has at the  time of sale a right  to  obtain
securities,  without  payment of further  consideration,  equivalent in kind and
amount to the  securities  sold,  and provided that if such right is conditional
the sale is made upon the same conditions,

         (iv) invest for the purpose of exercising control or management, except
that all of the assets of the Fund may be invested in the Portfolio,

   
         (v) purchase  securities issued by any registered  investment  company,
except  that the Fund may invest all its assets in the  Portfolio  and except by
purchase in the open market where no commission or profit to a sponsor or dealer
results from such purchase  other than the  customary  broker's  commission,  or
except when such purchase, though not made in the open market, is part of a plan
of merger or  consolidation;  provided,  however,  that  (except  for the Fund's
investment in the  Portfolio)  the Fund and the Portfolio  will not purchase the
securities  of any  registered  investment  company if such purchase at the time
thereof  would  cause  more  than  10% of the  total  assets  of the Fund or the
Portfolio,  respectively  (taken at the  greater of cost or market  value) to be
invested in the  securities  of such  issuers or would cause more than 3% of the
outstanding  voting securities of the Fund or the Portfolio,  respectively;  and
provided,  further, that (except
    
                                       7

<PAGE>

for  the  Fund's   investment  in  the  Portfolio)  the  Fund  and the Portfolio
shall not purchase securities issued by any open-end  investment  company,  (vi)
invest  more  than  10%  of  the  net  assets  of the  Fund  or  the  Portfolio,
respectively  (taken at the  greater  of cost or market  value),  in  securities
(excluding Rule 144A securities) that are restricted as to resale under the 1933
Act,

         (vii)  invest  more  than  15% of the  net  assets  of the  Fund or the
Portfolio,  respectively  (taken at the greater of cost or market value), (a) in
securities that are restricted as to resale by the 1933 Act (including Rule 144A
securities),  and (b) in securities that are issued by issuers which  (including
the period of operation of any predecessor company or unconditional guarantor of
such issuer) have been in operation  less than three years,  provided,  however,
that  no  more  than  5% of the  net  assets  of  the  Fund  or  the  Portfolio,
respectively,  are invested in  securities  issued by issuers  which  (including
predecessors) have been in operation less than three years,

         (viii)  purchase puts,  calls,  straddles,  spreads and any combination
thereof if the value of its aggregate  investment in such securities will exceed
5% of the Funds or the Portfolio's total assets at the time of such purchase,

         (ix)  purchase  securities  of any issuer if such  purchase at the time
thereof  would cause it to hold more than 10% of any class of securities of such
issuer,  for which  purposes  all  indebtedness  of an issuer  shall be deemed a
single  class  and all  preferred  stock of an  issuer  shall be deemed a single
class,  except that option  contracts shall not be subject to this  restriction,
and  except  that the Fund may  invest  all or any  portion of its assets in the
Portfolio,

   
         (x) purchase or retain any securities  issued by an issuer any of whose
officers,  directors,  trustees or security  holders is an officer or Trustee of
the Fund or the  Portfolio,  as the case may be, or a director of the Manager or
the  Submanager,  of all of the  securities  of such  issuer  by the Fund or the
Portfolio,  as the case may be, 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, except that the Fund may invest
all or any portion of its assets in the Portfolio,
    
         (xi) invest more than 5% of the Fund's or the Portfolio's net assets in
warrants  (valued at the lower of cost or  market),  but not more than 2% of the
Fund's or the  Portfolio's  net assets may be invested in warrants not listed on
the New York Stock Exchange Inc. ("NYSE") or the American Stock Exchange, or

         (xii) make short  sales of  securities  or  maintain a short  position,
unless at all times when a short  position  is open,  the Fund or the  Portfolio
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 and equal in amount to the securities sold short,  and unless not
more than 10% of the Fund's or the Portfolio's,  respectively, net assets (taken
at market value) is represented by such  securities,  or securities  convertible
into or exchangeable 


                                       8

<PAGE>

for  such  securities,  at any  one  time  (neither  the  Fund  nor the
Portfolio has any current intention to engage in short selling).

         Restrictions  (i) through (xii) are not  fundamental and may be changed
with respect to the Fund by the Fund without approval by the Fund's shareholders
or with respect to the  Portfolio by the  Portfolio  without the approval of the
Fund or its other investors. The Fund will comply with the state securities laws
and  regulations  of all states in which it is  registered.  The Portfolio  will
comply with the applicable investment  limitations found in the state securities
laws and regulations of all states in which the Fund is registered.

         PERCENTAGE   RESTRICTIONS:   If  a  percentage  restriction  or  rating
restriction  on investment or  utilization of assets set forth above or referred
to in the  Prospectus  is adhered to at the time an investment is made or assets
are so utilized,  a later  change in  percentage  resulting  from changes in the
value of the  securities  held by the Fund or the Portfolio or a later change in
the  rating  of a  security  held  by the  Fund  or the  Portfolio  will  not be
considered  a  violation  of policy;  provided  that if at any time the ratio of
borrowings  of the Fund or the  Portfolio  to the net asset value of the Fund or
the Portfolio, respectively, exceeds the ratio permitted by Section 18(f) of the
1940 Act, the Fund or the Portfolio as the case may be, will take the corrective
action required by Section 18(f).

                                  3.  PERFORMANCE INFORMATION

         The Fund will  calculate its total rate of return for any period by (a)
dividing  (i) the sum of the net  asset  value  per share on the last day of the
period and the net asset value per share on the last day of the period of shares
purchasable  with dividends and capital gains  declared  during such period with
respect  to a share held at the  beginning  of such  period and with  respect to
shares  purchased with such dividends and capital gains  distributions,  by (ii)
the public offering price per share (i.e.,  net asset value) on the first day of
such period, and (b) subtracting 1 from the result. Any annualized total rate of
return  quotation will be calculated by (x) adding 1 to the period total rate of
return  quotation  calculated  above,  (y) raising  such sum to a power which is
equal to 365 divided by the number of days in such period, and (z) subtracting 1
from the result.

         Any  current  "yield"  quotation  of  the  Fund  shall  consist  of  an
annualized  historical  yield,  carried at least to the nearest hundredth of one
percent,  based on a thirty  calendar day period and shall be  calculated by (a)
raising to the sixth power the sum of 1 plus the  quotient  obtained by dividing
the Fund's net investment  income earned during the period by the product of the
average daily number of shares  outstanding during the period that were entitled
to receive dividends and the maximum offering price per share on the last day of
the period, (b) subtracting 1 from the result, and (c) multiplying the result by
2.

         Total rate of return and yield  information  with respect to the Domini
Social  Index  will be  computed  in the same  fashion  as set forth  above with
respect to the Fund,  except that for purposes of this computation an investment
will be assumed to have been made in a portfolio consisting of all of the stocks
comprising  the 

                                       9

<PAGE>
   
Index  weighted in accordance  with the weightings of the stocks
comprising the Index. Performance information with respect to the Index will not
take into account brokerage commission and other transaction costs which will be
incurred by the Portfolio.
    
                            4.  DETERMINATION OF NET ASSET VALUE;
                                VALUATION OF PORTFOLIO SECURITIES

   
         The net asset value of each share of the Fund is determined each day on
which the NYSE is open for trading  ("Fund  Business  Day").  (As of the date of
this  Statement of  Additional  Information,  the NYSE is open for trading every
weekday except for the following  holidays:  New Year's Day, Martin Luther King,
Jr. Day,  Presidents' Day, Good Friday,  Memorial Day,  Independence  Day, Labor
Day,  Thanksgiving Day and Christmas Day). This determination of net asset value
of shares of the Fund is made once  during  each such day as of the close of the
NYSE by  dividing  the value of the Fund's net  assets  (i.e.,  the value of its
investment in the Portfolio and any other assets less its liabilities, including
expenses payable or accrued) by the number of shares outstanding at the time the
determination is made. Purchases and redemptions will be effected at the time of
determination  of net asset value next  following the receipt of any purchase or
redemption  order deemed to be in good order.  See "Purchases and Redemptions of
Shares" in the Prospectus.
    
         The  value  of the  Portfolio's  net  assets  (i.e.,  the  value of its
securities and other assets less its liabilities,  including expenses payable or
accrued)  is  determined  at the  same  time  and on the  same  day as the  Fund
determines  its net asset  value per  share.  The net asset  value of the Fund's
investment  in the  Portfolio is equal to the Fund's pro rata share of the total
investment of the Fund and of other  investors in the Portfolio  less the Fund's
pro rata share of the  Portfolio's  liabilities.  Equity  securities held by the
Portfolio  are valued at the last sale price on the  exchange  on which they are
primarily traded or on the NASDAQ system for unlisted national market issues, or
at the last quoted bid price for  securities in which there were no sales during
the day or for unlisted  securities  not reported on the NASDAQ  system.  If the
Portfolio purchases option contracts, such option contracts which are traded on
commodities or securities  exchanges are normally valued at the settlement price
on the exchange on which they are traded.  Short-term obligations with remaining
maturities  of less  than  sixty  days  are  valued  at  amortized  cost,  which
constitutes  fair value as determined by the Board of Trustees of the Portfolio.
Portfolio   securities   (other  than  short-term   obligations  with  remaining
maturities  of less than sixty days) for which there are no such  quotations  or
valuations  are  valued at fair value as  determined  in good faith by or at the
direction of the Portfolio's Board of Trustees.

         A determination  of value used in calculating net asset value must be a
fair value determination made in good faith utilizing procedures approved by the
Portfolio's  Board of Trustees.  While no single standard for  determining  fair
value  exists,  as a general  rule,  the current fair value of a security  would
appear to be the amount  which the  Portfolio  could  expect to receive upon its
current sale. Some, but not necessarily all, of the general factors which may be
considered in determining  fair value include:  (i) the  fundamental  analytical

                                       10

<PAGE>

data relating to the investment; (ii) the nature and duration of restrictions on
disposition  of the  securities;  and (iii) an  evaluation  of the forces  which
influence the market in which these  securities are purchased and sold.  Without
limiting or including  all of the specific  factors  which may be  considered in
determining fair value, some of the specific factors include:  type of security,
financial  statements of the issuer, cost at date of purchase,  size of holding,
discount from market value,  value of unrestricted  securities of the same class
at the time of purchase, special reports prepared by analysts, information as to
any  transactions  or offers with respect to the  security,  existence of merger
proposals or tender offers  affecting  the security,  price and extent of public
trading in similar securities of the issuer or comparable  companies,  and other
relevant matters.

         Interest  income on  short-term  obligations  held by the  Portfolio is
determined on the basis of interest accrued less amortization of premium.

                         5.  MANAGEMENT OF THE FUND AND THE PORTFOLIO

   
         The  Trustees  and  officers  of the Fund and the  Portfolio  and their
principal  occupations  during  the past five years are set forth  below.  Their
titles  may have  varied  during  that  period.  Asterisks  indicate  that those
Trustees and officers are  "interested  persons" (as defined in the 1940 Act) of
the Fund.  Unless  otherwise  indicated  below,  the address of each Trustee and
officer is [11 West 25th Street, New York, New York 10010].

                            TRUSTEES OF THE FUND AND THE PORTFOLIO

         EMILY W.  CARD -- 1223  Wilshire  Boulevard,  No.  334,  Santa  Monica,
California 90403;  Attorney;  President,  The Card Group,  Inc; Trustee,  Domini
Institutional Trust. Her date of birth is May 8, 1942.

         AMY L. DOMINI* -- 230 Congress  Street,  Boston,  Massachusetts  02110;
Chair,  President and Trustee of the Fund,  Portfolio  and Domini  Institutional
Trust; Manager of DSI; Officer of Kinder, Lydenberg, Domini & Co., Inc.; Private
Trustee,  Loring,  Wolcott & Coolidge;  Trustee , Episcopal Church Pension Fund;
Member, Governing Board, Interfaith Center on Corporate Responsibility. Her date
of birth is January 15, 1950.

         [ALLEN M. MAYES -- P.O.  Box 21222,  Beaumont,  Texas  77720;  Trustee,
Domini  Institutional  Trust;  Retired Senior Associate General Secretary of the
General  Board  of  Pensions  of  the  United  Methodist  Church,   Director  of
Ministerial  Services,  Texas Annual  Conference,  The United Methodist  Church;
Former  Member of the Board of  Directors  of Investor  Responsibility  Research
Center;  Member  of Board of  Trustees  of Wiley  College.  His date of birth is
September 20, 1920.]

         WILLIAM C. OSBORN -- 115  Buckminster  Road,  Brookline,  Massachusetts
02146;  Manager,  Venture  Investment  Management  Company LLC; Trustee , Domini
Institutional Trust; Vice President and General Manager,  TravElectric  Services
Corp (prior to 1995); President,  Environmental  [Packaging] Technologies (prior
to 1993; Director, Evergreen Solar, Inc; Director,  Conservation Services Group.
His date of birth is July 7, 1944.
    
                                       11

<PAGE>
   

         [KAREN PAUL -- 4050 Park Avenue,  Miami, Florida 33133;  Associate Dean
and  Professor  of  Business  Environment,   Florida  International  University;
Trustee, Domini Institutional Trust. Her date of birth is September 23, 1944.]

         TIMOTHY  SMITH -- 475  Riverside  Drive,  New  York,  New  York  10115;
Executive  Director , Interfaith  Center on Corporate  Responsibility;  Trustee,
Calvert New Africa Fund; Trustee,  Domini Institutional Trust. His date of birth
is September 15, 1943.

         FREDERICK C. WILLIAMSON -- Five Roger Williams Green, Providence, Rhode
Island 02904;  Treasurer and Trustee , RIGHA (charitable  foundation  supporting
health care needs);  Chairman, Rhode Island Historical Preservation and Heritage
Commission;  Trustee,  National  Parks and  Conservation  Commission;  Trustee ,
Domini Institutional Trust. His date of birth is September 20, 1914.

         Each Trustee is paid an annual fee as follows for serving as Trustee of
the Fund and the Portfolio and is reimbursed for expenses incurred in connection
with service as a Trustee.  The compensation paid to the Trustees for the fiscal
year ended July 31, 1997 is set forth below. The Trustees may hold
    
various other directorships unrelated to the Fund or Portfolio.

<TABLE>
<CAPTION>
   
                                                  PENSION OR
                                                  RETIREMENT
                                                  BENEFITS                                TOTAL
                              AGGREGATE           ACCRUED AS                              COMPENSATION
                              COMPENSATION        PART OF                                 FROM THE
                              FROM THE            FUND                ANNUAL BENEFITS     FUND, PORTFOLIO AND
                              FUND                EXPENSES            UPON RETIREMENT     DOMINI INSTITUTIONAL TRUST
    

<S>                             <C>                <C>                <C>                <C>
Amy L. Domini*, Chair,          None               None               None                None
President and Trustee

   
 Emily                          $1,600             None               None                $1,805
W. Card, Trustee

[Karen Paul, Trustee            $1,800                                None                $2,005]
                                                   None
    

William C. Osborn,              $1,800             None               None                $2,005
Trustee
                                $0                 None               None                $2,400]
   
[Allen M. Mayes, Trustee
                                $55                 None              None                $2,455
Timothy Smith, Trustee
                                $55                None               None                $2,455
Frederick C. Williamson, Sr., Trustee
    
</TABLE>


                                           OFFICERS

   
         PETER D.  KINDER*  -- Vice  President  of the  Fund and the  Portfolio;
President  of  Kinder,  Lydenberg,  Domini  &  Co.,  Inc.;  [  ]  Domini  Social
Investments LLC (since 1997).

         STEVEN D.  LYDENBERG* -- Vice  President of the Fund and the Portfolio;
Director of Research of Kinder, Lydenberg, Domini & Co., Inc.; [ ] Domini Social
Investments LLC (since 1997).

         DAVID P. WIEDER* -- Vice President of the Fund and the Portfolio (since
1997); [ ] Domini Social Investments LLC (since 1997);  President of Fundamental
Shareholder Services, Inc.
    
                                       12

<PAGE>
   

         SIGWARD  M.  MOSER*  -- Vice  President  of the Fund and the  Portfolio
(since 1997); President of Communications House International, Inc.; Director of
Financial  Communications  Society;  [ ] Domini  Social  Investments  LLC (since
1997).

         CAROLE  M.  LAIBLE*  --  Secretary  and  Treasurer  of the Fund and the
Portfolio  (since 1997);  Compliance  Officer of Domini Social  Investments  LLC
(since 1997); [ ] Fundamental Shareholder Services, Inc.

         As of September 1, 1997,  all Trustees and officers of the Fund and the
Portfolio as a group owned less than 1% of the Fund's outstanding shares . As of
the same date,  the  following  shareholders  of record  owned 5% or more of the
outstanding  shares of the Fund:  Charles  Schwab & Co.,  Inc.  (as a nominee on
behalf  of  its  customers),  2,612,979.548  shares  (29.6%)  (the  Fund  has no
knowledge  as to the  beneficial  ownership  of these  shares).  The Fund has no
knowledge  of any other owners of record or  beneficial  owners of 5% or more of
the  outstanding  shares of the  Fund.  Shareholders  owning  25% or more of the
outstanding  shares of the Fund may take  actions  without  the  approval of any
other investor in the Fund.

         The  Trustees  who are not  "interested  persons"  (the  "Disinterested
Trustees")  of the  Fund  as  defined  by the  1940  Act  are  the  same  as the
Disinterested  Trustees  of the  Portfolio.  A  majority  of  the  disinterested
Trustees have adopted  written  procedures  reasonably  appropriate to deal with
potential  conflicts of interest arising from the fact that the same individuals
are  Trustees  of the Fund and the  Portfolio,  up to and  including  creating a
separate  board of Trustees.  Any conflict of interest  between the Fund and the
Portfolio  will be resolved by the Trustees in accordance  with their  fiduciary
obligations and in accordance with the 1940 Act. The Fund's Declaration of Trust
provides  that it will  indemnify  its Trustees and officers  (the  "Indemnified
Parties")   against   liabilities  and  expenses  incurred  in  connection  with
litigation in which they may be involved because of their offices with the Fund,
unless,  as to  liability  to  the  Fund  or  its  shareholders,  it is  finally
adjudicated  that the  Indemnified  Parties engaged in wilful  misfeasance,  bad
faith,  gross  negligence or reckless  disregard of the duties involved in their
offices,  or unless with respect to any other  matter it is finally  adjudicated
that the Indemnified  Parties did not act in good faith in the reasonable belief
that  their  actions  were  in the  best  interests  of the  Fund.  In  case  of
settlement,  such  indemnification  will  not be  provided  unless  it has  been
determined  by  a  court  or  other  body  approving  the  settlement  or  other
disposition,  or by a reasonable  determination,  based upon a review of readily
available facts, by vote of a majority of disinterested Trustees or in a written
opinion of independent  counsel,  that such Indemnified Parties have not engaged
in wilful  misfeasance,  bad faith,  gross  negligence or reckless  disregard of
their duties.

                                    MANAGER AND SUBMANAGER

         DSI provides advice to the Portfolio pursuant to a Management Agreement
(the "Management  Agreement").  The services  provided by the Manager consist of
furnishing  continuously an investment program for the Portfolio.  DSI will have
authority to determine from time to time what securities are purchased,  sold or
exchanged,  and what portion of assets of the Portfolio is held uninvested.  DSI
    
                                       13

<PAGE>
   

will also perform such  administrative  and management tasks as may from time to
time be reasonably requested,  including:  (i) maintaining office facilities and
furnishing  clerical services  necessary for maintaining the organization of the
Portfolio and for  performing  administrative  and  management  functions;  (ii)
supervising the overall  administration of the Portfolio,  including negotiation
of contracts  and fees with and  monitoring of  performance  and billings of the
Portfolio's transfer agent,  shareholder  servicing agents,  custodian and other
independent  contractors  or  agents;  (iii)  overseeing  (with  the  advice  of
Portfolio's counsel) the preparation of and, if applicable, filing all documents
required for compliance by the Portfolio with applicable  laws and  regulations,
including  registration  statements,  prospectuses  and statements of additional
information,  semi-annual and annual reports to  shareholders,  proxy statements
and tax returns; (iv) preparing agendas and supporting documents for and minutes
of meetings  of  Trustees,  committees  of Trustees  and  shareholders;  and (v)
arranging for maintenance of the books and records of the Portfolio. The Manager
furnishes  at  its  own  expense  all  facilities  and  personnel  necessary  in
connection with providing these services. The Management Agreement will continue
in effect if such continuance is specifically  approved at least annually by the
Portfolio's  Board  of  Trustees  or by a  majority  of the  outstanding  voting
securities of the Portfolio at a meeting called for the purpose of voting on the
Management  Agreement  (with the vote of each investor in the Portfolio being in
proportion to the amount of its investment),  and, in either case, by a majority
of the Portfolio's  Trustees who are not parties to the Management  Agreement or
interested  persons  of any such party at a meeting  called  for the  purpose of
voting on the Management Agreement.

         The Management  Agreement provides that the Manager may render services
to others. DSI may employ, at its own expense, or may request that the Portfolio
employ (subject to the  requirements of the 1940 Act) one or more subadvisers or
submanagers,   subject  to  DSI's  supervision.   The  Management  Agreement  is
terminable  without  penalty  on not more  than 60 days'  nor less than 30 days'
written notice by the Portfolio when  authorized  either by majority vote of the
outstanding  voting  securities in the Portfolio (with the vote of each investor
in the Portfolio  being in proportion to the amount of its  investment)  or by a
vote of a  majority  of its  Board  of  Trustees,  or by the  Manager,  and will
automatically terminate in the event of its assignment. The Management Agreement
provides  that  neither the Manager  nor its  personnel  shall be liable for any
error  of  judgment  or  mistake  of law  or for  any  loss  arising  out of any
investment or for any act or omission in its services to the  Portfolio,  except
for wilful  misfeasance,  bad faith or gross negligence or reckless disregard of
its or their obligations and duties under the Management Agreement.
    
        The Fund's  Prospectus  contains a  description  of fees  payable to the
Manager for services under the Management Agreement.

   
         DSI is a newly  formed  Massachusetts  limited  liability  company with
offices at 11 West 25th  Street,  7th Floor,  New York,  New York 10010,  and is
registered as an investment  adviser under the  Investment  Advisers Act of 1940
(the  "Advisers  Act").  the  names  of  the  principal  owners  of  DSI,  their
relationship to the Fund and their percentage  ownership of DSI follows:  Amy L.
Domini,  Chairman  of the 
    

                                       14

<PAGE>
   
         Board and President of the Fund, is the Manager and principal executive
officer of DSI and a 21.55%  owner of DSI.  Ms.  Domini is also Chief  Executive
Officer,  Secretary,  Treasurer  and 51% owner of KLD which  licenses the Domini
Social Index to DSI.  Peter D. Kinder,  Vice  President of the Fund, is a 21.25%
owner of DSI.  Mr.  Kinder is also  President  and 19% owner of KLD.  Sigward M.
Moser,  Vice  President of the Fund, is a 21.25% owner of DSI.  David P. Wieder,
Vice  President  of the  Fund is a  21.25%  owner  of DSI.  Mr.  Wieder  is also
President and an owner of Fundamental  Shareholder  Services,  Inc. ("FSSI"),  a
registered  transfer  agent which has served as the Fund's  transfer agent since
1995.

         Mellon  Equity  manages  the  assets of the  Portfolio  pursuant  to an
Investment   Submanagement  Agreement  (the  "Submanagement   Agreement").   The
Submanager  furnishes at its own expense all services,  facilities and personnel
necessary in connection with managing the Portfolio's  investments and effecting
securities  transactions  for the Portfolio.  The  Submanagement  Agreement will
continue  in  effect  if such  continuance  is  specifically  approved  at least
annually  by the  Portfolio's  Board of  Trustees  or by a majority  vote of the
outstanding  voting  securities  in the  Portfolio  at a meeting  called for the
purpose of voting on the Submanagement Agreement (with the vote of each being in
proportion to the amount of its investment),  and, in either case, by a majority
of the Portfolio's  Trustees who are not parties to the Submanagement  Agreement
or interested  persons of any such party at a meeting  called for the purpose of
voting on the Submanagement Agreement.

         The  Submanagement  Agreement  provides that the  Submanager may render
services to others.  The Submanagement  Agreement is terminable  without penalty
upon  not more  than 60 days'  nor less  than 30  days'  written  notice  by the
Portfolio  when  authorized  either by majority vote of the  outstanding  voting
securities  in the  Portfolio  (with the vote of each being in proportion to the
amount  of  their  investment)  or by a vote of the  majority  of its  Board  of
Trustees,  or by the  Manager  with  the  consent  of the  Trustees  and  may be
terminated by the  Submanager  on not less than 90 days'  written  notice to the
Manager and the Trustees,  and will automatically  terminate in the event of its
assignment.  The Submanagement  Agreement provides that the Submanager shall not
be liable for any error of  judgment  or mistake of law or for any loss  arising
out of any  investment  or  for  any  act or  omission  in its  services  to the
Portfolio,  except  for wilful  misfeasance,  bad faith or gross  negligence  or
reckless   disregard  for  its  or  their   obligations  and  duties  under  the
Submanagement Agreement.

         Mellon Equity is a Pennsylvania  business trust founded in 1987,  which
is beneficially  owned by Mellon Bank,  N.A. (99% beneficial  interest) and MMIP
(1% beneficial  interest),  a wholly owned subsidiary of Mellon Bank Corporation
("Mellon Bank"). Mellon Equity is a professional investment counseling firm that
provides  investment  management  services to the equity and  balanced  pension,
public  fund,  and  profit-sharing  investment  management  markets,  and  is  a
registered  investment adviser under the Advisers Act. Mellon Bank's predecessor
organization  managed  domestic  equity,  tax-exempt and  institutional  pension
accounts  since  1947.  The address of Mellon  Equity and each of the  principal
executive  officers and directors of Mellon  Equity is 500 Grant  Street,  Suite
3700, Pittsburgh, Pennsylvania 15258.
    

                                       15

<PAGE>

   

         The Fund's  Prospectus  contains a  description  of fees payable to the
Submanager for services under the Submanagement Agreement. Prior to [November 1,
1997],   pursuant  to  an  investment  advisory  agreement  (the  "KLD  Advisory
Agreement"),  KLD served as  investment  adviser to the  Portfolio and furnished
continuously  an investment  program by determining the stocks to be included in
the Index.  Additionally,  prior to [November 1, 1997], pursuant to a management
agreement (the "Mellon Equity  Management  Agreement"),  Mellon Equity served as
investment  manager and managed the assets of the  Portfolio  on a daily  basis.
Prior to November 21, 1994, pursuant to an investment  management agreement (the
"State Street Management Agreement"), State Street Bank and Trust Company served
as investment manager to the Portfolio. Prior to [November 1, 1997], pursuant to
a  sponsorship  agreement  (the  "KLD  Sponsorship  Agreement"),  KLD  furnished
administrative  services for the Portfolio.  Prior to November 6, 1996, pursuant
to  an  administrative   services   agreement  (the  "Signature   Administration
Agreement"),  Signature served as the  administrator of the Portfolio.  Prior to
[November 1, 1997], the aggregate investment  management and administration fees
under the prior  agreements with respect to the Portfolio were equal to 0.15% of
the Portfolio's average daily net assets for its then current fiscal year.

         For the fiscal year ended July 31, 1997, the Portfolio incurred $46,528
in  advisory   fees  pursuant  to  the  KLD  Advisory   Agreement,   $46,528  in
administration  fees pursuant to the KLD  Sponsorship  Agreement and $182,885 in
management  fees pursuant to the Mellon  Equity  Management  Agreement.  For the
fiscal year ended July 31, 1996, the Portfolio incurred $38,150 in advisory fees
pursuant to the KLD Advisory Agreement, $38,150 in aggregate administration fees
pursuant  to the  Signature  Administration  Agreement  and the KLD  Sponsorship
Agreement,  and  $128,901  in  management  fees  pursuant  to the Mellon  Equity
Management Agreement. For the fiscal year ended July 31, 1995, KLD waived all of
its fees payable pursuant to the KLD Advisory Agreement, Signature waived all of
its fees payable  pursuant to the  Signature  Administration  Agreement  and the
Portfolio  incurred  $10,180 in  management  fees  pursuant to the State  Street
Management  Agreement  and  $29,409 in  management  fees  pursuant to the Mellon
Equity Management Agreement.

                                            SPONSOR

         Pursuant  to a  Sponsorship  Agreement,  DSI  provides  the  Fund  with
oversight,  administrative and management  services.  DSI provides the Fund with
general office facilities and supervises the overall administration of the Fund,
including,  among other responsibilities,  the negotiation of contracts and fees
with,  and the  monitoring  of  performance  and  billings  of, the  independent
contractors  and agents of the Fund; the preparation and filing of all documents
required  for  compliance  by the Fund  with  applicable  laws and  regulations,
including  registration  statements,  prospectuses  and statements of additional
information,  semi-annual and annual reports to  shareholders,  proxy statements
and tax returns;  preparing agendas and supporting  documents for and minutes of
meetings of  Trustees,  committees  of Trustees  and  shareholders;  maintaining
telephone coverage to respond to shareholder inquiries; answering questions from
the general public, the media and investors in the Fund regarding the securities
holdings of the  Portfolio,  limits on  investment  and the Fund's  proxy voting
philosophy  and  shareholder   activism   philosophy;   and  arranging  for  the
maintenance  of books and  records of the Fund.  The  Sponsor  provides  persons
satisfactory  to 
    

                                       16

<PAGE>
   
the   Board  of   Trustees  of  the  Fund  to  serve  as  officers  of the Fund.
Such officers,  as well as certain other employees and Trustees of the Fund, may
be directors, officers or employees of the Sponsor or its affiliates.

         The Fund's Prospectus contains a description of the fees payable to DSI
by the Fund, as Sponsor of the Fund under the  Sponsorship  Agreement.  Prior to
[November 1, 1997], Signature served as administrator. For the fiscal year ended
July 31, 1995, Signature  voluntarily waived all of its administrative  services
fees from the Fund.  For the fiscal years ended July 31, 1996 and 1997, the Fund
incurred $73,423 and [$], respectively, in administrative fees.

         The  Sponsorship  Agreement  with the Fund provides that DSI may render
administrative  services to others. The Sponsorship Agreement with the Fund also
provides  that  neither the Sponsor  nor its  personnel  shall be liable for any
error  of  judgment  or  mistake  of law  or for  any  act  or  omission  in the
administration  or management of the Fund,  except for wilful  misfeasance,  bad
faith or gross negligence in the performance of its or their duties or by reason
of reckless  disregard of its or their  obligations  and duties under the Fund's
Sponsorship Agreement.


                                          DISTRIBUTOR

         The Fund has adopted a  Distribution  Plan which provides that the Fund
may pay the  Distributor  a fee not to  exceed  0.25%  per  annum of the  Fund's
average daily net assets in anticipation of, or as reimbursement  for,  expenses
incurred in connection  with the sale of shares of the Fund, such as payments to
broker-dealers who advise shareholders regarding the purchase, sale or retention
of shares of the Fund,  payments to  employees of the  Distributor,  advertising
expenses and the expenses of printing and distributing  prospectuses and reports
used for sales purposes, expenses of preparing and printing sales literature and
other distribution-related  expenses. For the fiscal years ended July 31, 1995 ,
1996 and 1997, the Fund accrued $36,641 , $183,558,  and $[],  respectively,  in
distribution fees. For the fiscal year ended July 31, 1997, payments pursuant to
the Distribution Plan were used for advertising  ($[]),  printing and mailing of
prospectuses to other than current  shareholders ($[]),  compensation to dealers
($[]), compensation to sales personnel ($[]), and marketing consulting ($[]). In
addition,  $[] was paid to  service  organization  for  maintaining  shareholder
accounts and records.
    

         The  Distribution  Plan will  continue in effect  indefinitely  if such
continuance  is  specifically  approved  at least  annually  by a vote of both a
majority of the Fund's  Trustees  and a majority of the Fund's  Trustees who are
not  "interested  persons  of the  Fund"  and who  have no  direct  or  indirect
financial interest in the operation of the Distribution Plan or in any agreement
related to such Plan ("Qualified Trustees"). The Distributor will provide to the
Trustees of the Fund a quarterly  written report of amounts expended by it under
the Distribution  Plan and the purposes for which such  expenditures  were made.
The Distribution  Plan further provides that the selection and nomination of the
Fund's  Qualified   Trustees  shall  be  committed  to  the  discretion  of  the

                                       17

<PAGE>

disinterested  Trustees of the Fund. The Distribution  Plan may be terminated at
any time by a vote of a majority of the Fund's  Qualified  Trustees or by a vote
of the  shareholders  of the Fund. The  Distribution  Plan may not be materially
amended  without a vote of the  majority  of both the  Fund's  Trustees  and the
Fund's  Qualified  Trustees.  The Distributor  will preserve copies of any plan,
agreement or report made pursuant to the  Distribution  Plan for a period of not
less  than six (6) years  from the date of the  Distribution  Plan,  and for the
first two (2) years  the  Distributor  will  preserve  such  copies in an easily
accessible place.

         The  Fund  has  entered  into  a   Distribution   Agreement   with  the
Distributor. Under the Distribution Agreement, the Distributor acts as the agent
of the Fund in connection with the offering of shares of the Fund.

                                              19

<PAGE>




                      TRANSFER AGENT, CUSTODIAN AND SERVICE ORGANIZATIONS

   
         The Fund  has  entered  into a  Transfer  Agency  Agreement  with  FSSI
pursuant to which FSSI acts as the  transfer  agent for the Fund.  Mr.  David P.
Wieder,  Vice  President  of the Fund and a principal of DSI, the Manager of the
Portfolio  and Sponsor of the Fund,  is a [ ]% owner of, and  President of FSSI.
For its services to the Fund as transfer  agent,  FSSI receives  compensation at
the rate of [ ]. The Fund has entered into a Custodian  Agreement with Investors
Bank & Trust  Company  ("IBT")  pursuant to which IBT acts as custodian  for the
Fund.  The  Portfolio  has entered  into a Transfer  Agency  Agreement  with IBT
pursuant to which IBT acts as transfer  agent for the  Portfolio.  The Portfolio
has entered  into a Custodian  Agreement  with IBT pursuant to which IBT acts as
custodian for the Portfolio. For additional information, see "Transfer Agent and
Custodian" in the Prospectus.

         The Fund may from  time to time  enter  into  agreements  with  various
banks,  trust companies (other than Mellon Equity),  broker-dealers  (other than
Signature) or other financial  organizations  to provide  services for the Fund,
such as maintaining  shareholder accounts and records. For the fiscal year ended
July 31, 1995,  the Fund did not accrue any service  organization  fees. For the
fiscal  years ended July 31, 1996 and 1997,  the Fund  accrued  $12,526 and $[],
respectively,  in service  organization  fees. For additional  information,  see
"Service Organizations,  Transfer Agent and Custodian--Service Organizations" in
the Prospectus.
    


                                   6.  INDEPENDENT AUDITORS

   
         [ ] are the  independent  auditors for the Fund and for the  Portfolio,
providing  audit   services,   tax  return   preparation,   and  assistance  and
consultation  with respect to the preparation of filings with the Securities and
Exchange Commission.
    
                                         7.  TAXATION

         Each  year the Fund  intends  to  qualify  as a  "regulated  investment
company"  under  Subchapter M of the Internal  Revenue Code of 1986,  as amended
(the "Code").  

                                       18

<PAGE>

Provided   the   Fund   qualifies   as   a   "regulated    investment   company"
under  the  Code,  and  distributes  all of its net  investment  income  and net
realized   capital  gains  to   shareholders   in  accordance  with  the  timing
requirements  imposed  by the  Code,  the Fund will not be  required  to pay any
federal  income  or  excise  taxes.  If the Fund  should  fail to  qualify  as a
"regulated  investment  company"  in any year,  the Fund  would  incur a regular
corporate  federal  income tax upon its taxable  income and would be required to
pay  Massachusetts  income and excise taxes.  Additionally,  Fund  distributions
would generally be taxable as ordinary dividend income to the shareholders.

         It is assumed  that,  (1) the  Portfolio  will be treated  for  federal
income tax purposes as a partnership and (2) for purposes of determining whether
the Fund satisfies the income and  diversification  requirements to maintain its
status as a  regulated  investment  company,  the Fund,  as an  investor  in the
Portfolio, will be deemed to own a proportionate share of the Portfolio's assets
and will be deemed to be entitled to the Portfolio's income or loss attributable
to that share. The Portfolio has advised the Fund that it intends to conduct its
operations so as to enable its  investors,  including the Fund, to satisfy those
requirements.

         Shareholders  of the Fund  normally  will  have to pay  federal  income
taxes, and any state or local taxes, on  distributions of net investment  income
and net realized capital gains from the Fund. Dividends from ordinary income and
any distributions  from net short-term capital gains are taxable to shareholders
as ordinary  income for federal income tax purposes,  whether the  distributions
are made in cash or in additional shares. A portion of the Fund's  distributions
from net  investment  income is normally  eligible for the  corporate  dividends
received if the recipient otherwise qualifies for that deduction with respect to
its holding of Fund  shares.  Availability  of the  deduction  for a  particular
corporate  shareholder is subject to certain  limitations,  and deducted amounts
may be  subject to the  alternative  minimum  tax and  result in  certain  basis
adjustments.  Distributions  of net  capital  gains  (i.e.,  the  excess  of net
long-term  capital gains over net short-term  capital  losses),  whether made in
cash or in additional  shares,  are taxable to shareholders as long-term capital
gains for federal  income tax purposes  without regard to the length of time the
shareholders have held their shares.

         Amounts  not  distributed  on a  timely  basis in  accordance  with the
calendar year distribution  requirement are subject to a nondeductible 4% excise
tax. To prevent  imposition  of the excise tax,  the Fund must,  and intends to,
distribute  during each calendar year  substantially  all of its ordinary income
for that year and substantially all of its capital gain in excess of its capital
losses for that year, plus any  undistributed  ordinary income and capital gains
from previous years. Any Fund dividend that is declared in October, November, or
December of any calendar year, that is payable to shareholders of record in such
a month,  and that is paid the following  January will be treated as if received
by the shareholders on December 31 of the year in which the divided is declared.
The Fund will  notify  shareholders  regarding  the  federal  tax  status of its
distributions after the end of each calendar year.

         Any Fund  distribution  will have the effect of reducing  the per share
net  asset  value of  shares  in the  Fund by the  amount  of the  distribution.

                                       19

<PAGE>

Shareholders   purchasing   shares   shortly  before  the  record  date  of  any
distribution  may thus pay the full price for the  shares  and then  effectively
receive a portion of the purchase price back as a taxable distribution.

         In general,  any gain or loss  realized upon a taxable  disposition  of
shares of the Fund by a  shareholder  that holds such shares as a capital  asset
will be treated as  long-term  capital gain or loss if the shares have been held
for more than twelve months and otherwise as a short-term  capital gain or loss.
However, any loss realized upon a disposition of shares in the Fund held for six
months or less will be treated as a long-term  capital loss to the extent of any
distributions  of net capital gain made with respect to those  shares.  Any loss
realized  upon a  disposition  of  shares  may also be  disallowed  under  rules
relating to wash sales.

         The  Fund   anticipates  that  the  Portfolio  will  be  treated  as  a
partnership  for federal  income tax  purposes.  As such,  the  Portfolio is not
subject to federal income taxation. Instead, the Fund must take into account, in
computing its federal income tax liability, its share of the Portfolio's income,
gains, losses,  deductions,  credits and tax preference items, without regard to
whether it has received any cash distributions  from the Portfolio.  Withdrawals
by the Fund from the Portfolio generally will not result in the Fund recognizing
any gain or loss for federal  income tax purposes,  except that (1) gain will be
recognized  to the extent  that any cash  distributed  exceeds  the basis of the
Fund's interest in the Portfolio prior to the  distribution,  (2) income or gain
will be  realized  if the  withdrawal  is in  liquidation  of the Fund's  entire
interest  in  the  Portfolio  and  includes  a  disproportionate  share  of  any
unrealized receivables held by the Portfolio, and (3) loss will be recognized if
the  distribution  is in liquidation of that entire interest and consists solely
of cash and/or unrealized  receivables.  The basis of the Fund's interest in the
Portfolio generally equals the amount of cash and the basis of any property that
the Fund invests in the Portfolio,  increased by the Fund's share of income from
the Portfolio and decreased by the Fund's share of losses from the Portfolio and
the amount of any cash  distributions and the basis of any property  distributed
from the Portfolio.

         The  Portfolio is organized as a New York trust.  The  Portfolio is not
subject  to any  income  or  franchise  tax  in the  State  of New  York  or the
Commonwealth of Massachusetts.  The investment by the Fund in the Portfolio does
not cause the Fund to be liable for any income or franchise  tax in the State of
New York.
   
         Fund  shareholders  may be  subject  to state and  local  taxes on Fund
distributions  to them.  Shareholders  are  advised  to  consult  with their tax
advisers with respect to the particular tax consequences of an investment in the
Fund.
    

                     8.  PORTFOLIO TRANSACTIONS AND BROKERAGE COMMISSIONS

   
         Specific decisions to purchase or sell securities for the Portfolio are
made by a portfolio  manager who is an  employee  of the  Submanager  and who is
appointed and  supervised  by its senior  officers.  Changes in the  Portfolio's
    
                                       20

<PAGE>
   

investments are reviewed by its Board of Trustees.  The portfolio manager of the
Portfolio may serve other clients of the Submanager in a similar capacity.

         The   Portfolio's   primary   consideration   in   placing   securities
transactions  with  broker-dealers  for  execution is to obtain and maintain the
availability of execution at the most favorable prices and in the most effective
manner  possible.  The  Submanager  attempts to achieve this result by selecting
broker-dealers  to execute  transactions  on behalf of the  Portfolio  and other
clients of the  Submanager on the basis of their  professional  capability,  the
value and quality of their brokerage services,  and the level of their brokerage
commissions.  In the case of securities  traded in the  over-the-counter  market
(where no stated  commissions  are paid but the prices include a dealer's markup
or markdown),  the  Submanager  normally seeks to deal directly with the primary
market makers, unless in its opinion, best execution is available elsewhere.  In
the case of securities purchased from underwriters,  the cost of such securities
generally includes a fixed underwriting  commission or concession.  From time to
time,  soliciting  dealer fees are available to the  Submanager on the tender of
the  Portfolio's  securities  in  so-called  tender  or  exchange  offers.  Such
soliciting  dealer  fees  are in  effect  recaptured  for the  Portfolio  by the
Submanager. At present no other recapture arrangements are in effect. Consistent
with the  foregoing  primary  consideration,  the Conduct  Rules of the National
Association of Securities Dealers,  Inc. and such other policies as the Trustees
of the Portfolio may  determine,  the Submanager may consider sales of shares of
the Fund and of  securities  of other  investors in the Portfolio as a factor in
the  selection  of   broker-dealers   to  execute  the  Portfolio's   securities
transactions.

         Under the Submanagement  Agreement and as permitted by Section 28(e) of
the  Securities  Exchange Act of 1934, the Submanager may cause the Portfolio to
pay a  broker-dealer  acting on an agency  basis which  provides  brokerage  and
research  services to the  Submanager or the Manager an amount of commission for
effecting a  securities  transaction  for the  Portfolio in excess of the amount
other  broker-dealers  would have charged for the  transaction if the Submanager
determines  in good faith that the greater  commission is reasonable in relation
to the value of the  brokerage and research  services  provided by the executing
broker-dealer  viewed  in  terms  of  either  a  particular  transaction  or the
Submanager's or the Manager's  overall  responsibilities  to the Portfolio or to
its other  clients.  Not all of such services are useful or of value in advising
the Portfolio.

         The term  "brokerage and research  services"  includes advice as to the
value of securities,  the advisability of investing in,  purchasing,  or selling
securities,  and the  availability  of securities or of purchasers or sellers of
securities;  furnishing  analyses  and reports  concerning  issues,  industries,
securities,  economic factors and trends, portfolio strategy and the performance
of accounts;  and effecting  securities  transactions  and performing  functions
incidental  thereto such as clearance and  settlement.  However,  because of the
Portfolio's  policy of investing in accordance with the Domini Social Index, the
Submanager and the Manager  currently  intend to make only a limited use of such
brokerage and research services.

         Although commissions paid on every transaction will, in the judgment of
the Submanager, be reasonable in relation to the value of the brokerage services
    


                                       21
<PAGE>

   
         provided, commissions exceeding those which another broker might charge
may be paid to  broker-dealers  who were  selected  to execute  transactions  on
behalf of the Portfolio and the Submanager's or the Manager's other clients,  in
part for providing  advice as to the availability of securities or of purchasers
or sellers of securities and services in effecting  securities  transactions and
performing  functions  incidental  thereto  such as  clearance  and  settlement.
Certain broker-dealers may be willing to furnish statistical, research and other
factual  information  or  services  to  the  Submanager  or the  Manager  for no
consideration other than brokerage or underwriting commissions.

         The  Submanager  and the  Manager  attempt to  evaluate  the quality of
research  provided by brokers.  The  Submanager  and the Manager  sometimes  use
evaluations  resulting from this effort as a  consideration  in the selection of
brokers to execute portfolio transactions.  However,  neither the Submanager nor
the Manager is able to quantify  the amount of  commissions  which are paid as a
result  of such  research  because a  substantial  number  of  transactions  are
effected   through  brokers  which  provide  research  but  which  are  selected
principally because of their execution capabilities.

         The fees that the Portfolio pays to the Submanager and the Manager will
not be reduced as a  consequence  of the  Portfolio's  receipt of brokerage  and
research  services.  To the extent the Portfolio's  securities  transactions are
used to obtain brokerage and research services,  the brokerage  commissions paid
by the  Portfolio  will  exceed  those  that  might  otherwise  be paid for such
portfolio  transactions  and  research,  by an amount  which cannot be presently
determined.  Such  services may be useful and of value to the  Submanager or the
Manager in serving both the Portfolio and other  clients and,  conversely,  such
services obtained by the placement of brokerage business of other clients may be
useful to the  Submanager or the Manager in carrying out its  obligations to the
Portfolio.  While such  services  are not expected to reduce the expenses of the
Submanager or the Manager,  the Submanager or the Manager would,  through use of
the services, avoid the additional expenses which would be incurred if it should
attempt to develop comparable  information through its own staff. For the fiscal
years  ended July 31,  1995,1996  and 1997,  respectively,  the  Portfolio  paid
brokerage commissions of $15,222 , $45,017 and $[], respectively.

         In certain instances there may be securities which are suitable for the
Portfolio as well as for one or more of the  Submanager's or the Manager's other
clients.  Investment decisions for the Portfolio and for the Submanager's or the
Manager's  other  clients  are made with a view to  achieving  their  respective
investment  objectives.  It may develop that a particular  security is bought or
sold for only one client even though it might be held by, or bought or sold for,
other  clients.  Likewise,  a particular  security may be bought for one or more
clients  when  one  or  more  clients  are  selling  that  same  security.  Some
simultaneous transactions are inevitable when several clients receive investment
advice from the same investment adviser,  particularly when the same security is
suitable for the investment objectives of more than one client. When two or more
clients are simultaneously engaged in the purchase or sale of the same security,
the securities are allocated  among clients in a manner believed to be equitable
to  each.  It is  recognized  that  in  some  cases  this  system  could  have a
detrimental  effect  on  the  price  or  volume  of the  security  as far as the
Portfolio  is  concerned.  However,  it is  believed  that  the  ability  of the
Portfolio to 
    

                                       22

<PAGE>

participate   in   volume transactions   will  produce  better   executions  for
the Portfolio.

                   9.  DESCRIPTION OF SHARES, VOTING RIGHTS AND LIABILITIES

         The Fund's Declaration of Trust permits the Fund's Board of Trustees to
issue an unlimited number of full and fractional  shares of beneficial  interest
(without par value) and to divide or combine the shares into a greater or lesser
number of shares without thereby changing the proportionate beneficial interests
in the Fund. Each share represents an equal  proportionate  interest in the Fund
with each other share.  Upon  liquidation or dissolution of the Fund, the Fund's
shareholders  are entitled to share pro rata in the Fund's net assets  available
for distribution to its shareholders.  The Fund reserves the right to create and
issue a number of series of  shares,  in which  case the  shares of each  series
would  participate  equally  in  the  earnings,  dividends  and  assets  of  the
particular  series  (except  for any  differences  among  classes of shares of a
series).  Shares of each series would be entitled to vote  separately to approve
advisory  agreements or changes in investment  policy,  but shares of all series
may  vote  together  in  the  election  or  selection  of  Trustees,   principal
underwriters  and accountants  for the Fund. Upon  liquidation or dissolution of
the Fund, the shareholders of each series would be entitled to share pro rata in
the net  assets  of  their  respective  series  available  for  distribution  to
shareholders.

         Shareholders are entitled to one vote for each share held. Shareholders
in the Fund do not have cumulative voting rights,  and shareholders  owning more
than 50% of the outstanding  shares of the Fund may elect all of the Trustees of
the Fund if they choose to do so and in such event the other shareholders in the
Fund would not be able to elect any  Trustee.  The Fund is not  required to hold
annual  meetings  of  shareholders  but the Fund will hold  special  meetings of
shareholders  when in the  judgment of the Fund's  Trustees it is  necessary  or
desirable to submit matters for a shareholder vote. No material amendment may be
made to the Fund's  Declaration  of Trust  without the  affirmative  vote of the
holders of a majority of its  outstanding  shares.  Shares  have no  preference,
preemptive,  conversion or similar rights.  Shares,  when issued, are fully paid
and non-assessable,  except as set forth below. The Fund may enter into a merger
or consolidation, or sell all or substantially all of its assets, if approved by
the vote of the holders of two-thirds of its outstanding shares,  except that if
the Trustees of the Fund recommend such sale of assets,  the approval by vote of
the holders of a majority of the Fund's  outstanding  shares will be sufficient.
The Fund may also be terminated upon liquidation and distribution of its assets,
if approved by the vote of the holders of two-thirds of its outstanding  shares.
If not so terminated,  the Fund will continue  indefinitely.  Stock certificates
are issued only upon the written request of a shareholder.

         The Fund is an entity of the type  commonly  known as a  "Massachusetts
business trust". Under Massachusetts law,  shareholders of such a business trust
may, under certain circumstances,  be held personally liable as partners for its
obligations  and  liabilities.  However,  the  Declaration  of Trust contains an
express disclaimer of shareholder  liability for acts or obligations of the Fund
and  provides  for  indemnification  and  reimbursement  of expenses out of Fund
property for any shareholder  held personally  liable for the obligations of the

                                       23

<PAGE>

Fund.  The  Declaration  of Trust also  provides  that the Fund  shall  maintain
appropriate  insurance (for example,  fidelity  bonding and errors and omissions
insurance) for the protection of the Fund, its shareholders, Trustees, officers,
employees and agents  covering  possible tort and other  liabilities.  Thus, the
risk of a  shareholder  incurring  financial  loss  on  account  of  shareholder
liability is limited to circumstances in which both inadequate insurance existed
and the Fund itself was unable to meet its obligations.

         The Declaration of Trust further  provides that obligations of the Fund
are not binding upon the Trustees individually but only upon the property of the
Fund and that the Trustees  will not be liable for any action or failure to act,
but nothing in the  Declaration of Fund protects a Trustee against any liability
to which he or she would  otherwise be subject by reason of wilful  misfeasance,
bad faith, gross negligence, or reckless disregard of the duties involved in the
conduct of his or her office.

         Each  investor  in the  Portfolio,  including  the Fund,  may add to or
reduce its  investment  in the Portfolio on each Fund Business Day. At the close
of each  such  business  day,  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 representing that investor's share of the aggregate beneficial
interests in the Portfolio effective for that day. Any additions or withdrawals,
which are to be effected  as of the close of business on that day,  will then be
effected. The investor's percentage of the aggregate beneficial interests in the
Portfolio will then be  re-computed as the percentage  equal to the fraction (i)
the  numerator  of  which  is the  value of such  investor's  investment  in the
Portfolio as of the close of business on such 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  effected as of the close of business on such day, and (ii) the
denominator of which is the aggregate net asset value of the Portfolio as of the
close of business  on such day plus or minus,  as the case may be, the amount of
the net  additions  to or  withdrawals  from the  aggregate  investments  in the
Portfolio 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 as of the close of business on the following Fund Business Day.

                                   10.  FINANCIAL STATEMENTS

                                            
   
         The financial  statements of the Fund and the Portfolio , dated January
31,  1997,  from the  Fund's  semi-annual  report  are  incorporated  herein  by
reference  from the Fund's Form N-30D  filed with the  Securities  and  Exchange
Commission on April 11, 1997  (accession  no.  0001035347-97-000008).  A copy of
such report will be provided,  without  charge,  to each person  receiving  this
Statement of Additional Information upon request by calling (800) 762-6814.



DSI195E
    



<PAGE>



PART C

Item 24.  Financial Statements and Exhibits

(a)      Financial Statements

         Financial Statements Included In Part A:

   
         Financial Highlights [to be finalized by amendment]

         Financial Statements Incorporated by Reference In Part B:
    

         For the Registrant:

   
         Statement of Assets and Liabilities at January 31, 1997 (unaudited)
         Statement of Operations for the six months ended January 31, 1997
         (unaudited) Statements of Changes in Net Assets for the periods
         indicated (unaudited) Financial Highlights for the periods indicated
         (unaudited) Notes to Financial Statements at January 31, 1997
         (unaudited)
    

         For Domini Social Index Portfolio:

   
         Portfolio of Investments at January 31, 1997 (unaudited) Statement of
         Assets and Liabilities at January 31, 1997 (unaudited) Statement of
         Operations for the six months ended July 31, 1997 (unaudited) Statement
         of Changes in Net Assets for the periods indicated (unaudited)
         Financial Highlights for the periods indicated (unaudited) Notes to
         Financial Statements at January 31, 1997 (unaudited)
    

(b)      Exhibits

   
         1.       Amended and Restated Declaration of Trust of the Registrant.5
         2.       By-Laws of the  Registrant, as amended June 13, 1997.7
         4.       Specimen of certificate representing ownership of the
    
                  Registrant's Shares of Beneficial Interest.3
         6.       Distribution Agreement between the Registrant and Signature
   
                  Broker-Dealer Services, Inc. ("SBDS"), as distributor.1
         8.       Custodian Agreement between the Registrant and Investors Bank
    
                  & Trust Company, as custodian.1
   
         9(a).    Form of Transfer Agency Agreement between the Registrant and
                  Fundamental Shareholder Services, Inc.5
         9(b).    Administrative Services Agreement between the Registrant and
                  SBDS, as administrator.6
         11.      Consent of KPMG Peat Marwick LLP, independent auditors for the
                  Registrant. [to be filed by amendment]
    
         13.      Copies of investment representation letters from initial
                  shareholders.1
   
         15.      Distribution Plan of the Registrant.1
         16.      Schedule for Calculation of Performance Quotations.2
         18.      Powers of  Attorney.7
         27.      Financial Data Schedule.7

1        Incorporated by reference from Pre-Effective Amendment No. 2 to
         Registrant's Registration Statement (the "Registration Statement") as
         filed with the Securities and Exchange Commission (the "SEC") on June
         7, 1989.
2        Incorporated by reference from Post-Effective Amendment  ("PEA") No. 1
         to  the Registration Statement as filed with the  SEC on December 2,
         1991.
3        Incorporated by reference from  PEA No. 2 to  the Registration
         Statement as filed with the  SEC on November 16, 1992.
4        Incorporated by reference from  PEA No. 4 to  the Registration
         Statement as filed with the  SEC on September 16, 1993.
5        Incorporated by reference from  PEA No. 7 to  the Registration
         Statement as filed with the  SEC on November 22, 1995.
6        Incorporated by reference from PEA No. 9 to the Registration Statement
         as filed with the SEC on November 27, 1996.
 7       Filed herewith.
    

Item 25.  Persons Controlled by or under Common Control with Registrant

         Not applicable.

Item 26.  Number of Holders of Securities

Title of Class: Shares of Beneficial Interest (without par value).

   
Number of Record Holders as of  August 31, 1997:  6,500.
    

                                       C-1

<PAGE>




Item 27.  Indemnification

   
         Reference is hereby made to (a) Article V of the Registrant's
Declaration of Trust, filed as an exhibit hereto; (b) Section 4 of the
Distribution Agreement by and between the Registrant and SBDS, filed as an
exhibit hereto; and (c) the undertaking of the Registrant regarding
indemnification set forth in Item 32 below.

         The Trustees and officers of the Registrant and the personnel of the
Registrant's administrator and distributor are insured under an errors and
omissions liability insurance policy. The Registrant and its officers are also
insured under the fidelity bond required by Rule 17g-1 under the Investment
Company Act of 1940, as amended (the "1940 Act").
    

Item 28.  Business and Other Connections of Investment Adviser

         Not applicable.

Item 29.  Principal Underwriters

   
         (a)       SBDS is the distributor for the Registrant.   SBDS and its
                  affiliates  serve as the distributor for other registered
    
                  investment companies.

   
         (b)      The information required by this Item 29 with respect to each
                  director or officer of SBDS is incorporated herein by
                  reference from Schedule A of Form BD (File No. 8-41134) as
                  filed by SBDS pursuant to the Securities Exchange Act of 1934.
    

         (c)      Not applicable.

Item 30.  Location of Accounts and Records

         The accounts and records of the Registrant are located, in whole or in
         part, at the offices of the Registrant and at the following locations:

Name:                                       Address:

Kinder, Lydenberg, Domini & Co., Inc.       129 Mt. Auburn Street
(subadministrator)                          Cambridge, MA 02138

Signature Broker-Dealer Services, Inc.      6 St. James Avenue
(administrator and distributor)             Boston, MA 02116

Investors Bank & Trust Company              P.O. Box 1537
(custodian)                                 Boston, MA 02205

Fundamental Shareholder Services, Inc.      90 Washington Street

                                       C-2

<PAGE>



(transfer agent)                            New York, NY 10006

Item 31.  Management Services

         Not applicable.

Item 32.  Undertakings

   
     (a) The Registrant's  Declaration of Trust mandates  indemnification by the
Registrant  of  its  Trustees,   officers  and  certain   others  under  certain
conditions.  Insofar  as  indemnification  for  liabilities  arising  under  the
Securities  Act of 1933,  as  amended  (the "1933  Act"),  may be  permitted  to
Trustees,  officers and controlling  persons of the Registrant,  pursuant to the
foregoing  provisions or otherwise,  the Registrant has been advised that in the
opinion of the SEC such indemnification is against public policy as expressed in
the 1933 Act and is,  therefore,  unenforceable.  In the event  that a claim for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant of expenses  incurred or paid by a Trustee of officer or  controlling
person of the  Registrant  in the  successful  defense  of any  action,  suit or
proceeding) is asserted by such Trustee,  officer or  controlling  person of the
Registrant in connection with the securities  being  registered,  the Registrant
will,  unless in the  opinion of its  counsel  the  matter  has been  settled by
controlling  precedent,  submit  to a  court  of  appropriate  jurisdiction  the
question of whether or not such  indemnification  by it is against public policy
as expressed in the 1933 Act and will be governed by the final  adjudication  of
such issue.

     (b) The Registrant  undertakes to comply with Section 16(c) of the 1940 Act
as though such  provisions of the 1940 Act were  applicable  to the  Registrant,
except that the request referred to in the third full paragraph thereof may only
be  made  by  shareholders  who  hold  in  the  aggregate  at  least  10% of the
outstanding shares of the Registrant, regardless of the net asset value or value
of shares held by such requesting shareholders.
    

     (c) If the  information  called for by Item 5A of Form N-1A is contained in
the latest  annual report to  shareholders,  the  registrant  shall furnish each
person to whom a prospectus is delivered with a copy of the Registrant's  latest
annual report to shareholders upon request and without charge.

                                       C-3

<PAGE>



                                   SIGNATURES

   
         Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the registrant has duly caused this registration
statement to be signed on its behalf by the undersigned, thereto duly authorized
in the City of Boston, and Commonwealth of Massachusetts on the 26th day of
September, 1997.
    

DOMINI SOCIAL EQUITY FUND

   
By:   /S/ MOLLY S. MUGLER
      MOLLY S. MUGLER, Assistant Secretary

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed below by the following persons in the
capacities indicated on September 26, 1997.
    

Signature, Title

   
 AMY L. DOMINI*
 AMY L. DOMINI
 President (Principal Executive Officer)
    

/S/ JOHN R. ELDER
JOHN R. ELDER
Treasurer, Principal Financial Officer and Principal Accounting Officer

EMILY WATTS CARD*
EMILY WATTS CARD
Trustee

   
AMY L. DOMINI*
AMY L. DOMINI
 Trustee, Chair
    

WILLIAM C. OSBORN*
WILLIAM C. OSBORN
Trustee

   
KAREN PAUL*
KAREN PAUL
Trustee

TIMOTHY SMITH*
TIMOTHY SMITH
Trustee

FREDERICK C. WILLIAMSON*
FREDERICK C. WILLIAMSON
Trustee
    

   
*By /S/  MOLLY S. MUGLER
    MOLLY S. MUGLER
*Pursuant to powers of attorney  filed herewith.
    


<PAGE>



                                   SIGNATURES

   
         Domini Social Index Portfolio (the "Portfolio") has duly caused this
post-effective amendment to the registration statement on Form N-1A (File No.
33-29180) of Domini Social Equity Fund (the "Fund") to be signed on its behalf
by the undersigned, thereto duly authorized, in the City of Boston, and
Commonwealth of Massachusetts on the 26th day of September, 1997.
    

DOMINI SOCIAL INDEX PORTFOLIO

   
By:   /S/ MOLLY S. MUGLER
      MOLLY S. MUGLER, Assistant Secretary

         This post-effective amendment to the registration statement on Form
N-1A (File No. 33-29180) of the Fund has been signed below by the following
persons in the capacities indicated on September 26, 1997.
    

Signature, Title

   
 AMY L. DOMINI*
 AMY L. DOMINI
 President (Principal Executive Officer) of the Portfolio
    

/S/ JOHN R. ELDER
JOHN R. ELDER
   
Treasurer, Principal Financial Officer and Principal Accounting Officer of
the Portfolio


EMILY WATTS CARD
Trustee of the Portfolio

AMY L. DOMINI*
AMY L. DOMINI
 Trustee , Chair of the Portfolio
    

ALLEN M. MAYES*
ALLEN M. MAYES
   
Trustee of  the Portfolio

WILLIAM C. OSBORN*
 WILLIAM C. OSBORN
Trustee of  the Portfolio
    

TIMOTHY SMITH*
TIMOTHY SMITH
   
Trustee of  the Portfolio

FREDERICK C. WILLIAMSON*
FREDERICK C. WILLIAMSON
Trustee of the Portfolio
    

   
*By /S/ MOLLLY S. MUGLER
    MOLLY S. MUGLER
*Pursuant to powers of attorney  filed herewith.
    


<PAGE>



                                INDEX TO EXHIBITS

                       EXHIBIT NO. DESCRIPTION OF EXHIBIT

                                         
EX-99.B2 By-Laws of the Registrant , as amended June 13, 1997

EX-99B.18 Powers of Attorney

EX-99.B17 Financial Data Schedules
    

                                     BY-LAWS

                                       OF

                            DOMINI SOCIAL EQUITY FUND
                      (formerly, DOMINI SOCIAL INDEX TRUST)


                                           ARTICLE I

                                          DEFINITIONS

        The  terms  "COMMISSION",   "DECLARATION",   "DISTRIBUTOR",  "INVESTMENT
ADVISER",  "MAJORITY  SHAREHOLDER  VOTE", "1940 ACT",  "SHAREHOLDER",  "SHARES",
"TRANSFER AGENT",  "TRUST",  "TRUST PROPERTY" and "TRUSTEES" have the respective
meanings  given them in the  Declaration  of Trust of Domini  Social Equity Fund
(formerly, Domini Social Index Trust) dated June 7, 1989 as amended and restated
March 1, 1990.


                                          ARTICLE II

                                            OFFICES

         SECTION  1.  PRINCIPAL  OFFICE.  Until  changed  by the  Trustees,  the
principal office of the Trust in the  Commonwealth of Massachusetts  shall be in
the City of Boston, County of Suffolk.

         SECTION  2.  OTHER  OFFICES.  The Trust may have  offices in such other
places without as well as within the  Commonwealth as the Trustees may from time
to time determine.


                                          ARTICLE III

                                         SHAREHOLDERS

        SECTION 1. MEETINGS. A meeting of Shareholders may be called at any time
by a majority of the  Trustees  and shall be called by any Trustee  upon written
request,  which shall  specify the purpose or purposes for which such meeting is
to be called, of Shareholders  holding in the aggregate not less than 10% of the
outstanding  Shares  entitled to vote on the matters  specified  in such written
request.  Any such meeting shall be held within or without the  Commonwealth  of
Massachusetts on such day and at such time as the Trustees shall designate.  The
holders of a majority of outstanding  Shares  entitled to vote present in person
or by proxy shall constitute a quorum at any meeting of the Shareholders. In the
absence of a quorum,  a majority of outstanding  Shares entitled to vote present
in person or by proxy may adjourn  the meeting  from time to time until a quorum
shall be present.

        SECTION 2. NOTICE OF MEETINGS  Notice of all  meetings of  Shareholders,
stating  the time,  place and  purposes  of the  meeting,  shall be given by the
Trustees by mail to each  Shareholder  entitled  to vote at such  meeting at his
address as  recorded on the  register of the Trust,  mailed at least 10 days and
not


<PAGE>


more  than  60  days  before  the  meeting.  Only  the  business  stated in  the
notice of the meeting shall be considered at such meeting. Any adjourned meeting
may be held as adjourned  without further notice. No notice need be given to any
Shareholder  who shall have failed to inform the Trust of his current address or
if a written  waiver of  notice,  executed  before or after the  meeting  by the
Shareholder or his attorney thereunto  authorized,  is filed with the records of
the meeting.

        SECTION 3. RECORD DATE. For the purpose of determining the  Shareholders
who are entitled to notice of and to vote at any meeting,  or to  participate in
any distribution,  or for the purpose of any other action, the Trustees may from
time to time close the transfer books for such period, not exceeding 30 days, as
the Trustees may determine;  or without  closing the transfer books the Trustees
may fix a date  not  more  than 60 days  prior  to the  date of any  meeting  of
Shareholders  or  distribution  or  other  action  as  a  record  date  for  the
determination  of the persons to be treated as  Shareholders  of record for such
purpose.

        SECTION 4. ACTION. The Shareholders shall take action by the affirmative
vote of the  holders  of a  majority,  except  in the  case of the  election  of
Trustees  which  shall  only  require a  plurality,  of the Shares  present  and
entitled  to vote at a meeting  of  Shareholders  at which a quorum is  present,
except as may be  otherwise  required  by the 1940 Act,  or the  Declaration  of
Trust.

        SECTION 5. PROXIES. At any meeting of Shareholders, any holder of Shares
entitled  to vote  thereat  may vote by proxy,  provided  that no proxy shall be
voted  at any  meeting  unless  it  shall  have  been  placed  on file  with the
Secretary, or with such other officer or agent of the Trust as the Secretary may
direct,  for  verification  prior to the time at which such vote shall be taken.
Pursuant to a vote of a majority of the  Trustees,  proxies may be  solicited in
the name of the Trust or one or more  Trustees or  officers  of the Trust.  Only
Shareholders  of record  shall be  entitled  to vote.  Each full Share  shall be
entitled to one vote and  fractional  Shares shall be entitled to a vote of such
fraction. When any Share is held jointly by several persons, any one of them may
vote at any meeting in person or by proxy in respect of such Share,  but if more
than one of them  shall be present  at such  meeting in person or by proxy,  and
such joint  owners or their  proxies so  present  disagree  as to any vote to be
cast,  such  vote  shall not be  received  in  respect  of such  Share.  A proxy
purporting to be executed by or on behalf of a Shareholder shall be deemed valid
unless  challenged  at or prior  to its  exercise,  and the  burden  of  proving
invalidity  shall rest on the  challenger.  If the holder of any such Share is a
minor or a person of unsound mind, and subject to  guardianship  or to the legal
control of any other person as regards the charge or  management  of such Share,
such Share may be voted by such  guardian  or such  other  person  appointed  or
having such control, and such vote may be given in person or by proxy.

         SECTION 6.  INSPECTION  OF  RECORDS.  The records of the Trust shall be
open  to  inspection  by  Shareholders  to  the  same  extent  as  is  permitted
shareholders of a Massachusetts business corporation.

        SECTION 7.  ACTION  WITHOUT  MEETING.  Any action  which may be taken by
Shareholders  may be taken  without  a meeting  if a  majority  of  Shareholders


                                       2


<PAGE>


entitled  to vote on the matter (or such larger  proportion  thereof as shall be
required by law, the  Declaration  or these By-Laws for approval of such matter)
consent to the action in writing  and the  written  consents  are filed with the
records of the meetings of  Shareholders.  Such consent shall be treated for all
purposes as a vote taken at a meeting of Shareholders.


                                          ARTICLE IV

                                           TRUSTEES

        SECTION  1.  MEETINGS  OF  THE  TRUSTEES.  The  Trustees  may  in  their
discretion  provide for regular or stated  meetings of the  Trustees.  Notice of
regular or stated  meetings  need not be given.  Meetings of the Trustees  other
than regular or stated meetings shall be held whenever called by the Chairman or
by any Trustee.  Notice of the time and place of each meeting other than regular
or stated meetings shall be given by the Secretary or an Assistant  Secretary or
by the  officer  or  Trustee  calling  the  meeting  and shall be mailed to each
Trustee at least two days before the meeting,  or shall be telegraphed,  cabled,
or wirelessed to each Trustee at his business address,  or personally  delivered
to him at least one day  before  the  meeting.  Notice of a meeting  need not be
given to any  Trustee if a written  waiver of notice,  executed by him before or
after the meeting,  is filed with the records of the meeting,  or to any Trustee
who attends the meeting without  protesting prior thereto or at its commencement
the lack of notice to him.  A notice or waiver of notice  need not  specify  the
purpose of any meeting. The Trustees may meet by means of a telephone conference
circuit  or  similar  communications  equipment  by means of which  all  persons
participating  in the meeting can hear each other,  which  telephone  conference
meeting shall be deemed to have been held at a place  designated by the Trustees
at the meeting. Participation in a telephone conference meeting shall constitute
presence in person at such meeting. Any action required or permitted to be taken
at any meeting of the Trustees may be taken by the Trustees without a meeting if
all the Trustees  consent to the action in writing and the written  consents are
filed with the records of the Trustees' meetings. Such consents shall be treated
as a vote for all purposes.

        SECTION  2.  QUORUM AND MANNER OF  ACTING.  A majority  of the  Trustees
present  in person at any  regular  or special  meeting  of the  Trustees  shall
constitute a quorum for the  transaction of business at such meeting and (except
as otherwise  required by law, the  Declaration  or these  By-Laws) the act of a
majority  of the  Trustees  present  at any such  meeting,  at which a quorum is
present,  shall  be the act of the  Trustees.  In the  absence  of a  quorum,  a
majority of the Trustees present may adjourn the meeting from time to time until
a quorum shall be present. Notice of an adjourned meeting need not be given.

        SECTION 3.  ATTENDANCE  BY  TRUSTEES.  A Trustee  who fails,  during any
fiscal year of the Trust,  to attend at least 75% of the  meetings of the Board,
or who fails to attend at least 75% of the  meetings  of each  Committee  of the
Board of which such  Trustee is a member,  unless such failure was the result of
an illness or incapacity  which,  as  determined by the Board,  is not likely to
materially  interfere with the future performance of the duties of such Trustee,
shall be subject to removal  for cause by vote of  two-thirds  of the  remaining
Trustees.


                                       3


<PAGE>


The  foregoing  shall  not  be  construed  to  limit  in  any  way the authority
of the Board with respect to removal of Trustees.



                                           ARTICLE V

                                 COMMITTEES AND ADVISORY BOARD

        SECTION 1.  EXECUTIVE  AND OTHER  COMMITTEES.  The Trustees by vote of a
majority  of all the  Trustees  may elect  from  their own  number an  Executive
Committee  to  consist  of not less than three  Trustees  to hold  office at the
pleasure of the Trustees.

While the Trustees are not in session,  the Executive  Committee  shall have the
power to conduct the current and ordinary  business of the Trust,  including the
purchase  and  sale  of  securities  and the  designation  of  securities  to be
delivered upon  redemption of Shares of the Trust,  and such other powers of the
Trustees as the  Trustees  may,  from time to time,  delegate  to the  Executive
Committee except those powers which by law, the Declaration or these By-Laws the
Trustees are  prohibited  from so  delegating.  The Trustees may also elect from
their own number other  Committees from time to time, the number  composing such
Committees,  the powers conferred upon the same (subject to the same limitations
as with respect to the Executive  Committee)  and the term of membership on such
Committees  to be  determined  by the  Trustees.  The Trustees  may  designate a
chairman of any such Committee.  In the absence of such  designation a Committee
may elect its own chairman.

        SECTION 2.  MEETING,  QUORUM AND MANNER OF ACTING.  The Trustees may (i)
provide for stated meetings of any Committee, (ii) specify the manner of calling
and notice  required for special  meetings of any  Committee,  (iii) specify the
number of members of a Committee  required to constitute a quorum and the number
of members of a Committee  required to exercise  specified  powers  delegated to
such  Committee,  (iv)  authorize the making of decisions to exercise  specified
powers by written  assent of the  requisite  number of  members  of a  Committee
without a meeting, and (v) authorize the members of a Committee to meet by means
of a telephone conference circuit.

        Each Committee shall keep regular minutes of its meetings and records of
decisions  taken  without a  meeting  and cause  them to be  recorded  in a book
designated for that purpose and kept in the office of the Trust.

        SECTION 3. ADVISORY BOARD. The Trustees may appoint an Advisory Board to
consist in the first  instance of not less than three  members.  Members of such
Advisory Board shall not be Trustees or officers and need not be Shareholders. A
member of such Advisory  Board shall hold office for such period as the Trustees
may by vote provide and may resign therefrom by a written  instrument  signed by
him which shall take effect upon its  delivery  to the  Trustees.  The  Advisory
Board shall have no legal powers and shall not perform the functions of Trustees
in any manner,  such Advisory Board being intended  merely to act in an advisory
capacity.  Such Advisory  Board shall meet at such times and upon such notice as
the Trustees may by vote provide.


                                       4


<PAGE>


        SECTION 4.  CHAIRMAN.  The Trustees  may, by a majority  vote of all the
Trustees,  elect from  their own number a  Chairman,  to hold  office  until his
successor  shall have been duly elected and  qualified.  The Chairman  shall not
hold any other office. The Chairman may be, but need not be, a Shareholder.  The
Chairman shall preside at all meetings of the Trustees and shall have such other
duties as from time to time may be assigned to him by the Trustees.


                                          ARTICLE VI

                                           OFFICERS

        SECTION 1.  GENERAL  PROVISIONS.  The  officers  of the Trust shall be a
President,  a Treasurer  and a  Secretary,  each of whom shall be elected by the
Trustees. The Trustees may elect or appoint such other officers or agents as the
business of the Trust may require, including one or more Vice Presidents, one or
more Assistant Treasurers,  and one or more Assistant Secretaries.  The Trustees
may  delegate to any officer or committee  the power to appoint any  subordinate
officers or agents.

        SECTION  2.  TERM OF OFFICE  AND  QUALIFICATIONS.  Except  as  otherwise
provided by law, the Declaration or these By-Laws, the President,  the Treasurer
and the Secretary  shall hold office until his respective  successor  shall have
been duly elected and qualified, and all other officers shall hold office at the
pleasure of the Trustees.  The Secretary and Treasurer may be the same person. A
Vice  President and the  Treasurer or a Vice  President and the Secretary may be
the same person,  but the offices of Vice  President,  Secretary  and  Treasurer
shall not be held by the same  person.  The  President  shall not hold any other
office.  Except  as  above  provided,  any two  offices  may be held by the same
person. Any officer may be, but does not need be, a Trustee or Shareholder.

        SECTION 3. REMOVAL.  The Trustees,  at any regular or special meeting of
the  Trustees,  may remove  any  officer  with or  without  cause by a vote of a
majority  of the  Trustees.  Any  officer or agent  appointed  by any officer or
committee  may be removed with or without  cause by such  appointing  officer or
committee.

        SECTION 4. POWERS AND DUTIES OF THE PRESIDENT.  The President,  unless a
Chairman is so elected by the Trustees, shall be the principal executive officer
of the Trust.  Subject to the control of the Trustees  and any  committee of the
Trustees,  the President  shall at all times exercise a general  supervision and
direction over the affairs of the Trust.  The President  shall have the power to
employ  attorneys  and  counsel  for the Trust and to  employ  such  subordinate
officers,  agents, clerks and employees as he may find necessary to transact the
business of the Trust. The President shall also have the power to grant,  issue,
execute or sign such powers of  attorney,  proxies or other  documents as may be
deemed  advisable or necessary in the furtherance of the interests of the Trust.
The President shall have such other powers and duties as, from time to time, may
be conferred upon or assigned to him by the Trustees.

        SECTION  5.  POWERS  AND DUTIES OF VICE  PRESIDENTS.  In the  absence or
disability of the  President,  the Vice President or, if there are more than one


                                       5


<PAGE>


Vice President,  any Vice President designated by the Trustees shall perform all
the duties and may exercise any of the powers of the  President,  subject to the
control of the Trustees.  Each Vice President shall perform such other duties as
may be assigned to him from time to time by the Trustees or the President.

        SECTION 6. POWERS AND DUTIES OF THE  TREASURER.  The Treasurer  shall be
the principal financial and accounting officer of the Trust. The Treasurer shall
deliver all funds of the Trust  which may come into his hands to such  custodian
as the Trustees may employ  pursuant to Article X hereof.  The  Treasurer  shall
render a statement  of condition of the finances of the Trust to the Trustees as
often as they shall require the same and shall in general perform all the duties
incident to the office of  Treasurer  and such other duties as from time to time
may be assigned to him by the Trustees.  The Treasurer shall give a bond for the
faithful discharge of his duties, if required to do so by the Trustees,  in such
sum and with such surety or sureties as the Trustees shall require.

        SECTION 7. POWERS AND DUTIES OF THE SECRETARY.  The Secretary shall keep
the minutes of all meetings of the  Shareholders  in proper  books  provided for
that purpose; shall keep the minutes of all meetings of the Trustees; shall have
custody of the seal of the Trust;  and shall have  charge of the Share  transfer
books,  lists and  records  unless  the same are in the  charge of the  Transfer
Agent.  The  Secretary  shall attend to the giving and serving of all notices by
the Trust in accordance  with the provisions of these By-Laws and as required by
law;  and  subject to these  By-Laws,  shall in general  perform  all the duties
incident to the office of  Secretary  and such other duties as from time to time
may be assigned to him by the Trustees.

        SECTION 8. POWERS AND DUTIES OF ASSISTANT TREASURERS.  In the absence or
disability of the Treasurer,  any Assistant Treasurer designated by the Trustees
shall  perform  all the  duties,  and may  exercise  any of the  powers,  of the
Treasurer. Each Assistant Treasurer shall perform such other duties as from time
to time may be assigned to him by the Trustees.  Each Assistant  Treasurer shall
give a bond for the faithful  discharge  of his duties,  if required to do so by
the Trustees, in such sum and with such surety or sureties as the Trustees shall
require.

        SECTION 9. POWERS AND DUTIES OF ASSISTANT SECRETARIES. In the absence or
disability of the Secretary,  any Assistant Secretary designated by the Trustees
shall  perform all of the duties,  and may  exercise  any of the powers,  of the
Secretary. Each Assistant Secretary shall perform such other duties as from time
to time may be assigned to him by the Trustees.

        SECTION 10.  COMPENSATION  OF OFFICERS  AND  TRUSTEES AND MEMBERS OF THE
ADVISORY BOARD.  Subject to any applicable law or provision of the  Declaration,
the  compensation of the officers and Trustees and members of the Advisory Board
shall be fixed from time to time by the Trustees or, in the case of officers, by
any committee of officers upon whom such power may be conferred by the Trustees.
No officer shall be prevented from receiving such  compensation  as such officer
by reason of the fact that he is also a Trustee.


                                          ARTICLE VII

                                              6


<PAGE>


                                          FISCAL YEAR

        The fiscal year of the Trust shall be that annual  period as  designated
by the Trustees of the Trust.


                                         ARTICLE VIII

                                             SEAL

        The  Trustees  shall  adopt a seal which shall be in such form and shall
have such inscription thereon as the Trustees may from time to time prescribe.


                                          ARTICLE IX

                                       WAIVERS OF NOTICE

        Whenever any notice is required to be given by law, the  Declaration  or
these  By-Laws,  a waiver  thereof in  writing,  signed by the person or persons
entitled to such notice,  whether before or after the time stated therein, shall
be deemed equivalent thereto. A notice shall be deemed to have been telegraphed,
cabled  or  wirelessed  for the  purposes  of  these  By-Laws  when it has  been
delivered to a representative  of any telegraph,  cable or wireless company with
instruction  that it be telegraphed,  cabled or wirelessed.  Any notice shall be
deemed  to be given at the time  when  the same  shall be  mailed,  telegraphed,
cabled or wirelessed.


                                           ARTICLE X

                                           CUSTODIAN

        SECTION 1.  APPOINTMENT  AND  DUTIES.  The  Trustees  shall at all times
employ a bank or trust company having a capital,  surplus and undivided  profits
of at least  $5,000,000 as custodian with authority as its agent, but subject to
such  restrictions,  limitations  and  other  requirements,  if  any,  as may be
contained in the Declaration, these By-Laws and the 1940 Act:

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

(ii) to receive and receipt for any monies due to the Trust and deposit the same
     in its own banking  department  or  elsewhere  as the  Trustees may direct;

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

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

(v)  if authorized  by the Trustees,  to compute the net income of the Trust and
     the net asset value of Shares;


                                              7


<PAGE>


all  upon  such  basis  of  compensation  as  may  be  agreed  upon  between the
Trustees and the custodian.

        The  Trustees  may also  authorize  the  custodian to employ one or more
sub-custodians from time to time to perform such of the acts and services of the
custodian  and upon such terms and  conditions as may be agreed upon between the
custodian and such sub-custodian and approved by the Trustees,  provided that in
every case such  sub-custodian  shall be a bank or trust company organized under
the laws of the United States or one of the states  thereof and having  capital,
surplus and undivided profits of at least $5,000,000.

        SECTION  2.  CENTRAL   CERTIFICATE   SYSTEM.   Subject  to  such  rules,
regulations and orders as the Commission may adopt,  the Trustees may direct the
custodian to deposit all or any part of the  securities  owned by the Trust in a
system  for  the  central  handling  of  securities  established  by a  national
securities  exchange or a national  securities  association  registered with the
Commission under the Securities  Exchange Act of 1934, or with such other person
as may be permitted by the Commission,  or otherwise in accordance with the 1940
Act,  pursuant to which system all securities of any particular  class or series
of any issuer  deposited  within the system are treated as  fungible  and may be
transferred or pledged by bookkeeping  entry without  physical  delivery of such
securities,  provided that all such deposits shall be subject to withdrawal only
upon the order of the Trust or its custodian.

        SECTION 3.  ACCEPTANCE OF RECEIPTS IN LIEU OF  Certificates.  Subject to
such rules, regulations and orders as the Commission may adopt, the Trustees may
direct the  custodian  to accept  written  receipts or other  written  evidences
indicating  purchases  of  securities  held in  book-entry  form in the  Federal
Reserve  System  in  accordance  with  regulations  promulgated  by the Board of
Governors of the Federal  Reserve System and the local Federal  Reserve Banks in
lieu of receipt of certificates representing such securities.

        SECTION 4. PROVISIONS OF CUSTODIAN  CONTRACT.  The following  provisions
shall apply to the  employment of a custodian  pursuant to this Article X and to
any contract entered into with the custodian so employed:

(a)  The Trustees  shall cause to be delivered to the custodian  all  securities
     owned by the Trust or to which it may become entitled,  and shall order the
     same to be  delivered  by the  custodian  only upon  completion  of a sale,
     exchange,  transfer, pledge, or other disposition thereof, and upon receipt
     by the custodian of the consideration  therefor or a certificate of deposit
     or a receipt of an issuer or of its Transfer Agent, all as the Trustees may
     generally  or from  time to time  require  or  approve,  or to a  successor
     custodian;  and the Trustees shall cause all funds owned by the Trust or to
     which it may become  entitled to be paid to the custodian,  and shall order
     the same disbursed only for investment  against  delivery of the securities
     acquired, or in payment of expenses, including management compensation, and
     liabilities of the Trust, including distributions to Shareholders,  or to a
     successor custodian;  provided,  however, that nothing herein shall prevent
     delivery of securities for examination to the broker purchasing the same in
     accord  with the "street  delivery"  custom  whereby  such  securities  are
     delivered  to such broker in exchange for a delivery


                                       8


<PAGE>


     receipt  exchanged on the same day for an uncertified  check of such broker
     to be presented on the same day for certification.

(b)  In case of the  resignation,  removal  or  inability  to  serve of any such
     custodian,  the Trust shall promptly  appoint another bank or trust company
     meeting the  requirements  of this  Article X as successor  custodian.  The
     agreement  with the  custodian  shall  provide that the retiring  custodian
     shall,  upon  receipt  of notice  of such  appointment,  deliver  all Trust
     Property in its possession to and only to such successor,  and that pending
     appointment  of a successor  custodian,  or a vote of the  Shareholders  to
     function  without a custodian,  the  custodian  shall not deliver any Trust
     Property  to the  Trust,  but may  deliver  all or any  part  of the  Trust
     Property   to  a  bank  or  trust   company   doing   business  in  Boston,
     Massachusetts,  of its own selection,  having an aggregate capital, surplus
     and undivided  profits (as shown in its last published  report) of at least
     $5,000,000;  provided that  arrangements are made for the Trust Property to
     be held  under  terms  similar  to  those on which  they  were  held by the
     retiring custodian.


                                          ARTICLE XI

                                          AMENDMENTS

        These By-Laws, or any of them, may be altered,  amended or repealed,  or
new  By-Laws may be adopted (a) by the  Shareholders  by a Majority  Shareholder
Vote, or (b) by the Trustees,  provided, however, that no By-Law may be amended,
adopted or  repealed  by the  Trustees  if such  amendment,  adoption  or repeal
requires,  pursuant to law,  the  Declaration  or these  By-Laws,  a vote of the
Shareholders.

DSI198A

                          9

                                             DOMINI SOCIAL INDEX TRUST


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as her
true and lawful attorneys and agents to execute in her name and on her behalf in
any and all capacities the Registration Statement on Form N-1A, and any and all
amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as her own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF,  the undersigned has hereunto set her hand this 4th
day of December, 1992.



                                                              /s/ Emily W. Card
                                                              Emily W. Card


<PAGE>






                                             DOMINI SOCIAL INDEX TRUST


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as her
true and lawful attorneys and agents to execute in her name and on her behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as her own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set her hand this 17th
day of June, 1991.



                                                              /s/ Amy L. Domini
                                                              Amy L. Domini



<PAGE>






                                             DOMINI SOCIAL INDEX TRUST


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as his
true and lawful attorneys and agents to execute in his name and on his behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as his own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 17th
day of June, 1991.



                                                          /s/ William C. Osborn
                                                              William C. Osborn



<PAGE>






                                             DOMINI SOCIAL INDEX TRUST


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as her
true and lawful attorneys and agents to execute in her name and on her behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as her own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set her hand this 17th
day of June, 1991.



                                                              /s/ Karen Paul
                                                              Karen Paul



<PAGE>






                                             DOMINI SOCIAL EQUITY FUND


         The  undersigned  hereby  constitutes  and appoints Philip W. Coolidge,
John R. Elder, Linda T. Gibson, Molly S. Mugler, Roger P. Joseph, Mari A. Wilson
and each of them,  with  full  powers  of  substitution  as his true and  lawful
attorneys  and  agents to  execute  in his name and on his behalf in any and all
capacities the  Registration  Statement on Form N-1A, and any and all amendments
thereto,  filed by Domini  Social  Equity  Fund on behalf of the  Domini  Social
Equity Fund (the "Trust") with the Securities and Exchange  Commission under the
Investment  Company Act of 1940 and any and all instruments which such attorneys
and agents,  or any of them,  deem necessary or advisable to enable the Trust to
comply with such Act, the rules,  regulations and requirements of the Securities
and Exchange  Commission,  and the  securities  or Blue Sky laws of any state or
other juristiction,  and the undersigned hereby ratifies and confirms as his own
act and deed any and all that such attorneys and agents,  or any of them,  shall
do or cause to be done by virtue  hereof.  Any one of such  attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS  WHEREOF,  the  undersigned  has  hereunto set his hand this
_____ day of ______, 1997.



                                                              /s/ Timothy Smith
                                                              Timothy Smith



<PAGE>






                                             DOMINI SOCIAL EQUITY FUND


         The  undersigned  hereby  constitutes  and appoints Philip W. Coolidge,
John R. Elder, Linda T. Gibson, Molly S. Mugler, Roger P. Joseph, Mari A. Wilson
and each of them,  with  full  powers  of  substitution  as his true and  lawful
attorneys  and  agents to  execute  in his name and on his behalf in any and all
capacities the  Registration  Statement on Form N-1A, and any and all amendments
thereto,  filed by Domini  Social  Equity  Fund on behalf of the  Domini  Social
Equity Fund (the "Trust") with the Securities and Exchange  Commission under the
Investment  Company Act of 1940 and any and all instruments which such attorneys
and agents,  or any of them,  deem necessary or advisable to enable the Trust to
comply with such Act, the rules,  regulations and requirements of the Securities
and Exchange  Commission,  and the  securities  or Blue Sky laws of any state or
other juristiction,  and the undersigned hereby ratifies and confirms as his own
act and deed any and all that such attorneys and agents,  or any of them,  shall
do or cause to be done by virtue  hereof.  Any one of such  attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS  WHEREOF,  the  undersigned  has  hereunto set his hand this
_____ day of _______, 1997.



                                                     /s/ Frederick C. Williamson
                                                         Frederick C. Williamson



<PAGE>






                                           DOMINI SOCIAL INDEX PORTFOLIO


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as her
true and lawful attorneys and agents to execute in her name and on her behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as her own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set her hand this 17th
day of June, 1991.



                                                              /s/ Amy L. Domini
                                                              Amy L. Domini



<PAGE>






                                           DOMINI SOCIAL INDEX PORTFOLIO


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as his
true and lawful attorneys and agents to execute in his name and on his behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as his own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 17th
day of June, 1991.



                                                              /s/ Allen M. Mayes
                                                              Allem M. Mayes



<PAGE>






                                           DOMINI SOCIAL INDEX PORTFOLIO


         The  undersigned  hereby  constitutes  and appoints Philip W. Coolidge,
John R. Elder, Linda T. Gibson, Molly S. Mugler, Roger P. Joseph, Mari A. Wilson
and each of them,  with  full  powers  of  substitution  as his true and  lawful
attorneys  and  agents to  execute  in his name and on his behalf in any and all
capacities the  Registration  Statement on Form N-1A, and any and all amendments
thereto, filed by Domini Social Index Portfolio Portfolio (the "Portfolio") with
the Securities and Exchange  Commission under the Investment Company Act of 1940
and any and all  instruments  which such  attorneys and agents,  or any of them,
deem necessary or advisable to enable the Portfolio to comply with such Act, the
rules,  regulations and requirements of the Securities and Exchange  Commission,
and the securities or Blue Sky laws of any state or other juristiction,  and the
undersigned  hereby  ratifies  and  confirms as his own act and deed any and all
that such attorneys and agents,  or any of them, shall do or cause to be done by
virtue hereof. Any one of such attorneys and agents have, and may exercise,  all
of the powers hereby conferred.

         IN WITNESS  WHEREOF,  the  undersigned  has  hereunto set his hand this
______ day of _______, 1997.



                                                              /s/ William Osborn
                                                              William Osborn



<PAGE>






                                           DOMINI SOCIAL INDEX PORTFOLIO


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as his
true and lawful attorneys and agents to execute in his name and on his behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as his own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 17th
day of June, 1991.



                                                              /s/ Timothy Smith
                                                              Timothy Smith



<PAGE>






                                           DOMINI SOCIAL INDEX PORTFOLIO


         The undersigned hereby constitutes and appoints Philip W. Coolidge,
Peter D. Kinder, Steven D. Lydenberg, Cynthia J. Colitti, Thomas M. Lenz,
Molly S. Mugler, James B. Craver, Donald S. Rumery, Barbara M. Cahoon and
Richard S. Enfield, and each of them, with full powers of substitution as his
true and lawful attorneys and agents to execute in his name and on his behalf
in any and all capacities the Registration Statement on Form N-1A, and any and
all amendments thereto, filed by Domini Social Index Trust (the "Trust") with
the Securities and Exchange Commission under the Investment Company Act of 1940
and the Securities Act of 1933 and any and all instruments which such attorneys
and agents, or any of them, deem necessary or advisable to enable the Trust to
comply with such Acts, the rules, regulations and requirements of the Securities
and Exchange Commission, and the securities or Blue Sky laws of any state or
other juristiction, and the undersigned hereby ratifies and confirms as his own
act and deed any and all that such attorneys and agents, or any of them, shall
do or cause to be done by virtue hereof.  Any one of such attorneys and agents
have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 17th
day of June, 1991.



                                                /s/ Frederick C. Williamson, Sr.
                                                    Frederick C. Williamson, Sr.



<PAGE>





                                           DOMINI SOCIAL INDEX PORTFOLIO

     The undersigned hereby constitutes and appoints Peter D. Kinder,  Steven D.
Lyndenberg, Thomas M. Lenz, Molly S. Mugler, Linda T. Gibson, Andres E. Saldana,
Brian J. Hall,  David G.  Danielson and Daniel E. Shea,  and each of them,  with
full  powers of  substitution  as his true and  lawful  attorneys  and agents to
execute in his name and on his behalf in any and all capacities the Registration
Statements on Form N-1A,  and any and all  amendments  thereto,  filed by Domini
Social Euqity Fund, Domini  Institutional Trust, DEVCAP Trust, and Green Century
Funds  (each  a  "Trust"),  or the  Registration  Statement(s),  and any and all
amendments  thereto,  filed by any other investor in any  registered  investment
company in which any of the Trusts  invest,  with the  Securities  and  Exchange
Commission  under the  Investment  Company Act of 1940,  as amended,  and/or the
Securities  Act of 1933,  as  amended,  and any and all  instruments  which such
attorneys and agents, or any of them, deem necessary or advisable to enable each
Trust to comply with such Acts, the rules,  regulations and  requirements of the
Securities and Exchange  Commission,  and the securities or Blue Sky laws of any
state or other jurisdiction, and the undersigned hereby ratifies and confirms as
his own act and deed any and all acts that such attorneys and agents,  or any of
them,  shall do or cause to be done by virtue hereof.  Any one of such attorneys
and agents have, and may exercise, all of the powers hereby conferred.

         IN WITNESS WHEREOF,  the undersigned has hereunto set his hand this 8th
day of April, 1996.



                                                     /s/ John R. Elder
                                                     John R. Elder

DSI166B

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
     This schedule  contains summary  financial  information  extracted from the
semiannual report to shareholders  dated January 1, 1997 of Domini Social Equity
Fund and is qualified in its entirety by reference to such report
</LEGEND>
<CIK> 0000851680
<NAME> Domini Social Equity Fund
<SERIES>
<NAME> Domini Social Equity Fund
<NUMBER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUL-31-1997
<PERIOD-START>                             AUG-01-1996
<PERIOD-END>                               JAN-31-1997
<INVESTMENTS-AT-COST>                       85,711,494
<INVESTMENTS-AT-VALUE>                     125,703,700
<RECEIVABLES>                                   47,044
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             125,750,744
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       80,394
<TOTAL-LIABILITIES>                             80,394
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    85,494,238
<SHARES-COMMON-STOCK>                        6,047,797
<SHARES-COMMON-PRIOR>                        4,844,260
<ACCUMULATED-NII-CURRENT>                       70,562
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        113,344
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    39,992,206
<NET-ASSETS>                               125,670,350
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                 694,521
<EXPENSES-NET>                                 331,572
<NET-INVESTMENT-INCOME>                        362,949
<REALIZED-GAINS-CURRENT>                       200,891
<APPREC-INCREASE-CURRENT>                   22,578,335
<NET-CHANGE-FROM-OPS>                       23,142,175
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      366,662
<DISTRIBUTIONS-OF-GAINS>                       665,632
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,558,900
<NUMBER-OF-SHARES-REDEEMED>                    399,510
<SHARES-REINVESTED>                             44,147
<NET-CHANGE-IN-ASSETS>                      44,755,129
<ACCUMULATED-NII-PRIOR>                         74,275
<ACCUMULATED-GAINS-PRIOR>                      578,085
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                719,364
<AVERAGE-NET-ASSETS>                       105,801,222
<PER-SHARE-NAV-BEGIN>                            14.85
<PER-SHARE-NII>                                  0.163
<PER-SHARE-GAIN-APPREC>                          1.927
<PER-SHARE-DIVIDEND>                             0.158
<PER-SHARE-DISTRIBUTIONS>                        0.082
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.70
<EXPENSE-RATIO>                                   0.98
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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