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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 1a:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Center maintains invertebrate and vertebrate collections for Education, Research and Outreach activities. The Center's live collections remain on display for visitors. No value has been assigned to these collections.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Center maintains invertebrate and vertebrate collections for Education, Research and Outreach activities. The Center's live collections remain on display for visitors.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>Our endowment ("permanently restricted") funds are used for income producing purposes. Pursuant to the expressed wishes of the donors of such funds, income from them is used to support the provision of education program-services and for the maintenance of our nature preserve and facilities in support of all program services.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Center is exempt from federal income tax under Section 501(c)(3) of the Internal Revenue Code and Chapter 180 of the general laws of the Commonwealth of Massachusetts. Accordingly, no provisions have been made for federal and state income taxes in the accompanying financial statements. The Center believes it has appropriate support for any tax positions taken, and as such, does not have any uncertain tax positions that are material to the financial statements.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>SPECIAL EVENT DIRECT EXPENSES NETTED WITH INCOME 90,917.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>SPECIAL EVENT DIRECT EXPENSES NETTED WITH INCOME 90,917.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>CLAMBAKE</Event1Nm>
        <GrossReceiptsEvent1Amt>135456</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>81452</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>54004</GrossRevenueEvent1Amt>
        <RentFacilityCostsEvent1Amt>31235</RentFacilityCostsEvent1Amt>
        <FoodAndBeverageEvent1Amt>49660</FoodAndBeverageEvent1Amt>
        <EntertainmentEvent1Amt>4950</EntertainmentEvent1Amt>
        <OtherDirectExpensesEvent1Amt>5072</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>135456</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>81452</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>54004</GrossRevenueTotalEventsAmt>
        <RentFcltyCostsTotalEventsAmt>31235</RentFcltyCostsTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>49660</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>4950</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>5072</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>90917</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-36913</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <BusinessName>
            <BusinessNameLine1Txt>STUDIO2SUSTAIN</BusinessNameLine1Txt>
          </BusinessName>
        </NameOfInterested>
        <RelationshipDescriptionTxt>OWNER OF COMPANY IS ON THE BOARD OF THE ORGANIZATION</RelationshipDescriptionTxt>
        <TransactionAmt>35552</TransactionAmt>
        <TransactionDesc>ARCHITECTURAL SERVICES</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
    </IRS990ScheduleL>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>12</ContributionCnt>
        <NoncashContributionsRptF990Amt>140240</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>MISCELLANEOUS PROGRAM SUPPLIES</Desc>
        <ContributionCnt>11</ContributionCnt>
        <NoncashContributionsRptF990Amt>5193</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>REPLACEMENT COSTS</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>There shall be only one class of Members of the Center, and all Members shall have the same rights within the Center, except that the right to vote shall not accrue to children or grandchildren included in "family" memberships. For "individual" memberships, all the privileges of membership, including the right to vote, shall accrue to one named adult. For "family" memberships, all the privileges of membership shall accrue to a maximum of two named adults residing in the same household and, except for the right to vote, to their children or grandchildren under the age of 18. The Annual Meeting of the Members of the Center shall include the election of Directors and action on any properly proposed amendment or alteration of the By-laws. Special meetings of the Members of the Center may be called at the written request (bearing the signatures) of twenty-five Members in accordance with applicable provisions of law. At all meetings of the Members of the Center, each Member over the age of 18 shall be entitled to one vote. The Board shall consist of the Chair of the Board, ex-officio, the Vice-Chair, ex officio, the Secretary, ex officio, and the Treasurer, ex officio, and not more than twenty-one other Directors elected by the Members of the Center at the Annual Meeting. The By-laws may at any time be amended or repealed, in whole or in part, at any annual or special meeting of the Members of the Center by a vote of two-thirds of those adult Members present. A majority of the Directors in office may also amend or repeal the By-laws, provided that no amendment or repeal may be made by the Directors which changes the date of the Annual Meeting of the Members of the Center, or which alters the provisions of the By-laws with respect to removal of Directors, indemnification of Directors and officers, or amendment of the By-laws, or which requires action by the Members of the Center. Any By-law adopted by the Directors may be amended or repealed by the Members of the Center.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>See response to Question # 6</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The governing body or Board of Directors receives an electronic copy of the Organization's Form 990 for review and approval before filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Any potential conflict is brought to the attention of the Board of Directors by the Executive Director and it is discussed at length and resolved/approved, accordingly.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The salary of the Executive Director is discussed between the Treasurer and the Chairman of the Board and then approved by the Finance Committee. Subsequently, the compensation is included in the Organization's budget and the entire Board of Directors approves the budget, annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents are available online via the secretary for the Commonwealth of Massachusetts, or upon request. The conflict of interest policy is available upon request. Financial statements are available through Guidestar.org and the Commonwealth of Massachusetts Division of Public Charities, or upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XII, Line 2c:</FormAndLineReferenceDesc>
        <ExplanationTxt>There is a committee overseeing audit and auditor selection. There have been no changes to this policy in the current year.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>