Exhibit a(2)

                         DOMINI SOCIAL INVESTMENT TRUST

                                    Amendment
                             to Declaration of Trust

                                 August 1, 2005

         The undersigned, constituting at least a majority of the Trustees of
the Trust named above and acting pursuant to the Trust's Declaration of Trust as
currently in effect (the "Declaration of Trust"), do hereby certify that in
accordance with the provisions of the first sentence of Section 9.3(a) of the
Declaration of Trust, the following amendments to the Declaration of Trust has
been duly adopted by at least a majority of the Trustees of the Trust, effective
as of August 1, 2005:

         (a) The Establishment and Designation of Series of Shares of Beneficial
Interests (par value $0.00001 per Share) attached as Appendix A to the
Declaration of Trust has been amended and restated to read as set forth on
Appendix A attached hereto.

         (b) Section 5.2 of the Declaration of Trust is amended to read in its
entirety as follows:

                  Section 5.2. Non-Liability of Trustees and Others. No Trustee,
         Trustee Emeritus, officer, employee or agent of the Trust shall be
         subject to any personal liability whatsoever to any Person, other than
         the Trust or its Shareholders, in connection with Trust Property or the
         affairs of the Trust; and all Persons shall look solely to the Trust
         Property for satisfaction of claims of any nature arising in connection
         with the affairs of the Trust. No Trustee, Trustee Emeritus, officer,
         employee or agent of the Trust shall be liable to the Trust or to any
         Shareholder, Trustee, officer, employee, or agent of the Trust for any
         action or failure to act (including without limitation the failure to
         compel in any way any former or acting Trustee to redress any breach of
         trust) except for his or her own bad faith, willful misfeasance, gross
         negligence or reckless disregard of his or her duties involved in the
         conduct of the individual's office. Without limiting the foregoing, the
         appointment, designation or identification of a Trustee as the
         chairperson (including the independent chairperson) of the Board of
         Trustees, a member or chairperson of a committee of the Trustees, an
         expert on any topic or in any area (including an audit committee
         financial expert), or the lead independent Trustee, or any other
         special appointment, designation or identification of a Trustee, shall
         not impose on that person any duty, obligation or liability that is
         greater than the duties, obligations and liability imposed on that
         person as a Trustee in the absence of the appointment, designation or
         identification (except that the foregoing limitation shall not apply to
         duties expressly imposed pursuant to the By-Laws, a committee charter
         or a Trust policy statement), and no Trustee who has special skills or
         expertise, or is appointed, designated or identified as aforesaid,
         shall be held to a higher standard of care by virtue thereof. In
         addition, no appointment, designation




         or identification of a Trustee as aforesaid shall effect in any way
         that Trustee's rights or entitlement to indemnification.

         (c) Section 5.7 of the Declaration of Trust is amended to read in its
entirety as follows:

                  Section 5.7. Derivative Actions. No Shareholder shall have the
         right to bring or maintain any court action, proceeding or claim on
         behalf of the Trust or any series or class thereof without first making
         demand on the Trustees requesting the Trustees to bring or maintain
         such action, proceeding or claim. Such demand shall be mailed to the
         Secretary or Clerk of the Trust at the Trust's principal office and
         shall set forth in reasonable detail the nature of the proposed court
         action, proceeding or claim and the essential facts relied upon by the
         Shareholder to support the allegations made in the demand. A Trustee
         shall not be deemed to have a personal financial interest in an action
         or otherwise be disqualified from ruling on a Shareholder demand by
         virtue of the fact that such Trustee receives remuneration from his or
         her service on the Board of Trustees of the Trust or on the boards of
         one or more investment companies with the same or an affiliated
         investment adviser or underwriter, or by virtue of the amount of such
         remuneration. In their sole discretion, the Trustees may submit the
         matter to a vote of Shareholders of the Trust or any series or class
         thereof, as appropriate. Any decision by the Trustees under this
         Section 5.7 not to bring, or maintain such court action, proceeding or
         claim, or to submit the matter to a vote of Shareholders, shall be made
         by the Trustees in their business judgment and shall be binding upon
         the Shareholders, except to the extent that Shareholders have voting
         rights as set forth in Section 6.8 hereof.

         IN WITNESS WHEREOF, the undersigned have executed this Amendment as of
the date first written above.


/s/ Amy L. Domini                        /s/ Karen Paul
-----------------------------------      --------------
Amy L. Domini, as Trustee                Karen Paul, as Trustee
and not individually                     and not individually


/s/ Julia Elizabeth Harris               /s/ Gregory A. Ratliff
-----------------------------------      ----------------------
Julie Elizabeth Harris, as Trustee       Gregory A. Ratliff, as Trustee
and not individually                     and not individually


/s/ Kirsten S. Moy                       /s/ Frederick C. Williamson, Sr.
-----------------------------------      --------------------------------
Kirsten S. Moy, as Trustee               Frederick C. Williamson, Sr., as
and not individually                     Trustee and not individually


/s/ William C. Osborn                    /s/ John L. Shields
-----------------------------------      -------------------
William C. Osborn, as Trustee            John L. Shields, as Trustee
and not individually                     and not individually






                                                                      Appendix A
                                                                      ----------

                              AMENDED AND RESTATED
              ESTABLISHMENT AND DESIGNATION OF SERIES OF SHARES OF
               BENEFICIAL INTEREST (PAR VALUE $0.00001 PER SHARE)

         Pursuant to Section 6.11 of the Second Amended and Restated Declaration
of Trust, as most recently amended and restated as of May 15, 2001 (as amended
and in effect from time to time, the "Declaration"), of Domini Social Investment
Trust (the "Trust"), the undersigned, being not less than a majority of the
Trustees of the Trust, do hereby amend and restate the existing Establishment
and Designation of Series appended as Appendix A to the Declaration in order to
establish and designate one additional Series of Shares (as defined in the
Declaration). No changes to the special and relative rights of the existing
Series are intended by this amendment and restatement.

         1. The previously established and designated Series are:

            Domini Social Equity Fund
            Domini Social Bond Fund

            The additional Series established and designated hereby is:

            Domini European Social Equity Fund

         2. Each Series (referred to herein as a "Fund" and, collectively, the
"Funds") shall be authorized to hold cash, invest in securities, instruments and
other property and use investment techniques as from time to time described in
the Trust's then currently effective registration statement under the Securities
Act of 1933 to the extent pertaining to the offering of Shares of the Fund. Each
Share of each Fund shall be redeemable as provided in the Declaration. Subject
to differences among classes, each Share of each Fund shall be entitled to vote
on matters on which Shares of the Fund shall be entitled to vote as provided in
Section 6.8 of the Trust's Declaration of Trust, shall represent a pro rata
beneficial interest in the assets allocated or belonging to the Fund, and shall
be entitled to receive its pro rata share of the net assets of the Fund upon
liquidation of the Fund, all as provided in Section 6.9 of the Declaration of
Trust. The proceeds of sales of Shares of each Fund, together with any income
and gain thereon, less any diminution or expenses thereof, shall irrevocably
belong to the Fund, unless otherwise required by law.

         3. Shareholders of each Fund shall vote separately as a class on any
matter to the extent required by, and any matter shall have been deemed
effectively acted upon with respect to the Fund as provided in, Rule 18f-2, as
from time to time in effect, under the 1940 Act or any successor rule, and the
Declaration.



                                      -2-

         4. The assets and liabilities of the Trust shall be allocated among
each Fund and any series of the Trust designated in the future as set forth in
Section 6.9 of the Declaration.

         5. Subject to the provisions of Section 6.9 and Article IX of the
Declaration, the Trustees (including any successor Trustees) shall have the
right at any time and from time to time to reallocate assets and expenses or to
change the designation of each Fund, or otherwise to change the special and
relative rights of each Fund.

         6. Any Fund may be terminated by the Trustees at any time by written
notice to the Shareholders of the Fund.

         IN WITNESS WHEREOF, the undersigned have executed this instrument as of
August 1, 2005.


/s/ Amy L. Domini                           /s/ Karen Paul
---------------------------------------     --------------
Amy L. Domini, as Trustee and               Karen Paul, as Trustee and
not individually                            not individually


/s/ Julia Elizabeth Harris                  /s/ Gregory A. Ratliff
---------------------------------------     ----------------------
Julia Elizabeth Harris, as Trustee and      Gregory A. Ratliff, as Trustee and
not individually                            not individually


/s/ Kirsten S. Moy                          /s/ Frederick C. Williamson, Sr.
---------------------------------------     --------------------------------
Kirsten S. Moy, as Trustee and              Frederick  C.  Williamson,  Sr. , as
not individually                            Trustee and not individually


/s/ William C. Osborn                       /s/ John L. Shields
---------------------------------------     -------------------
William C. Osborn, as Trustee and           John L. Shields, as Trustee and
not individually                            not individually