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        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>CYNTHIA HECKSCHER</NamePerson>
        <Title>BOARD TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>ANDREW LEWIS</NamePerson>
        <Title>BOARD TRUSTEE-HONORARY</Title>
        <AverageHoursPerWeek>0.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>JAMES R MACALEER</NamePerson>
        <Title>CHAIRMAN OF THE BOARD</Title>
        <AverageHoursPerWeek>10.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>SANDRA L MCLEAN</NamePerson>
        <Title>BOARD TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>WILLIAM L MCLEAN III</NamePerson>
        <Title>BOARD TRUSTEE-EMERITUS</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>EDWARD A MONTGOMERY JR</NamePerson>
        <Title>BOARD TRUSTEE-EMERITUS</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>ALLEN J MODEL</NamePerson>
        <Title>BOARD TRUSTEE</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
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        <NamePerson>DR RUTH PATRICK</NamePerson>
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        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
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      <Form990PartVIISectionA>
        <NamePerson>MINTURN T WRIGHT III</NamePerson>
        <Title>BOARD TRUSTEE-EMERITUS</Title>
        <AverageHoursPerWeek>1.00</AverageHoursPerWeek>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
        <ReportableCompFromOrganization>0</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>DAVID RUSENKO</NamePerson>
        <Title>VP OF FINANCE AND ADMIN</Title>
        <AverageHoursPerWeek>40.00</AverageHoursPerWeek>
        <Officer>X</Officer>
        <ReportableCompFromOrganization>100089</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>3804</OtherCompensation>
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      <TotalReportableCompFromOrg>218818</TotalReportableCompFromOrg>
      <TotalReportableCompFrmRltdOrgs>0</TotalReportableCompFrmRltdOrgs>
      <TotalOtherCompensation>15842</TotalOtherCompensation>
      <NumberIndividualsGT100K>2</NumberIndividualsGT100K>
      <FormersListed>0</FormersListed>
      <TotalCompGT150K>0</TotalCompGT150K>
      <CompensationFromOtherSources>0</CompensationFromOtherSources>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>KEYSTONE HEALTH PLAN</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>PO BOX 70250</AddressLine1>
            <City>PHILADELPHIA</City>
            <State>PA</State>
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          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>MEDICAL INSURANCE</DescriptionOfServices>
        <Compensation>589520</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>SAGE DINING SERVICES</BusinessNameLine1>
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        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>222 BOSLEY AVENUE SUITE B7</AddressLine1>
            <City>TOWSON</City>
            <State>MD</State>
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          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>FOOD SERVICE</DescriptionOfServices>
        <Compensation>436891</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>WILLIS OF PENNSYLVANIA</BusinessNameLine1>
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        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>PO BOX 905432</AddressLine1>
            <City>CHARLOTTE</City>
            <State>NC</State>
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        </AddressOfContractor>
        <DescriptionOfServices>INSURANCE</DescriptionOfServices>
        <Compensation>236031</Compensation>
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      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>CLEAN TECH SERVICE</BusinessNameLine1>
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        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>114 CHESTNUT STREET</AddressLine1>
            <City>PHILADELPHIA</City>
            <State>PA</State>
            <ZIPCode>19106</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
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        <Compensation>233696</Compensation>
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      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>HARMELIN MEDIA</BusinessNameLine1>
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        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>525 RIGHTERS FERRY ROAD</AddressLine1>
            <City>BALA CYNWYD</City>
            <State>PA</State>
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          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>MEDIA SERVICES AND PLACE</DescriptionOfServices>
        <Compensation>181629</Compensation>
      </ContractorCompensation>
      <NumberOfContractorsGT100K>5</NumberOfContractorsGT100K>
      <MembershipDues>356263</MembershipDues>
      <FundraisingEvents>48861</FundraisingEvents>
      <GovernmentGrants>1315324</GovernmentGrants>
      <AllOtherContributions>3709904</AllOtherContributions>
      <NoncashContributions>190690</NoncashContributions>
      <TotalContributions>5430352</TotalContributions>
      <ProgramServiceRevenue>
        <Description>ENVIRONMENTAL RESEARCH</Description>
        <BusinessCode>541700</BusinessCode>
        <TotalRevenueColumn>1451909</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>1451909</RelatedOrExemptFunctionIncome>
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      <ProgramServiceRevenue>
        <Description>MUSEUM ADMISSIONS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>1090390</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>1090390</RelatedOrExemptFunctionIncome>
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      <ProgramServiceRevenue>
        <Description>EDUCATION &amp; MUSEUM PRO</Description>
        <BusinessCode>611600</BusinessCode>
        <TotalRevenueColumn>617126</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>617126</RelatedOrExemptFunctionIncome>
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      <ProgramServiceRevenue>
        <Description>SYSTEMATIC BIOLOGY RES</Description>
        <BusinessCode>541700</BusinessCode>
        <TotalRevenueColumn>88987</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>88987</RelatedOrExemptFunctionIncome>
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      <ProgramServiceRevenue>
        <Description>LIBRARY</Description>
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        <RelatedOrExemptFunctionIncome>35826</RelatedOrExemptFunctionIncome>
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      <TotalProgramServiceRevenue>3284238</TotalProgramServiceRevenue>
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        <TotalRevenueColumn>3166864</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>3194687</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>-27823</UnrelatedBusinessRevenue>
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        <TotalRevenueColumn>122388</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>122388</RelatedOrExemptFunctionIncome>
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      <GrossAmountSalesAssets>
        <Other>12728976</Other>
      </GrossAmountSalesAssets>
      <LessCostOthBasisSalesExpenses>
        <Other>13047983</Other>
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      <GainOrLoss>
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      <NetGainOrLossInvestments>
        <TotalRevenueColumn>-319007</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>-319007</RelatedOrExemptFunctionIncome>
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      <GrossIncomeFundraisingEvents>41230</GrossIncomeFundraisingEvents>
      <CntrbtnsRprtdFundraisingEvents>56325</CntrbtnsRprtdFundraisingEvents>
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      <NetIncomeFromFundraisingEvents>
        <TotalRevenueColumn>0</TotalRevenueColumn>
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        <UnrelatedBusinessRevenue>5647</UnrelatedBusinessRevenue>
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      <MiscellaneousRevenue>
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        <RelatedOrExemptFunctionIncome>237478</RelatedOrExemptFunctionIncome>
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      <TotalOtherRevenue>450274</TotalOtherRevenue>
      <TotalRevenue>
        <TotalRevenueColumn>12376358</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>6968182</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>-22176</UnrelatedBusinessRevenue>
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      <CompCurrentOfficersDirectors>
        <Total>234660</Total>
        <ManagementAndGeneral>150746</ManagementAndGeneral>
        <Fundraising>83914</Fundraising>
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        <Total>5775455</Total>
        <ProgramServices>4630818</ProgramServices>
        <ManagementAndGeneral>881980</ManagementAndGeneral>
        <Fundraising>262657</Fundraising>
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      <PensionPlanContributions>
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        <ProgramServices>357033</ProgramServices>
        <ManagementAndGeneral>79509</ManagementAndGeneral>
        <Fundraising>34574</Fundraising>
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        <ProgramServices>417857</ProgramServices>
        <ManagementAndGeneral>93054</ManagementAndGeneral>
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        <ProgramServices>331539</ProgramServices>
        <ManagementAndGeneral>73831</ManagementAndGeneral>
        <Fundraising>32105</Fundraising>
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        <ManagementAndGeneral>45975</ManagementAndGeneral>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
        <Total>41450</Total>
        <ManagementAndGeneral>41450</ManagementAndGeneral>
      </FeesForServicesAccounting>
      <FeesForServicesLobbying>
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        <Fundraising>97232</Fundraising>
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        <ManagementAndGeneral>67372</ManagementAndGeneral>
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        <ProgramServices>48741</ProgramServices>
        <ManagementAndGeneral>60892</ManagementAndGeneral>
        <Fundraising>1516</Fundraising>
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      <Advertising>
        <Total>650721</Total>
        <ProgramServices>581073</ProgramServices>
        <ManagementAndGeneral>336</ManagementAndGeneral>
        <Fundraising>69312</Fundraising>
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        <ProgramServices>787022</ProgramServices>
        <ManagementAndGeneral>65487</ManagementAndGeneral>
        <Fundraising>33105</Fundraising>
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      <InformationTechnology>
        <Total>95102</Total>
        <ProgramServices>14340</ProgramServices>
        <ManagementAndGeneral>66542</ManagementAndGeneral>
        <Fundraising>14220</Fundraising>
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      <Royalties>
        <Total>53575</Total>
        <ProgramServices>53575</ProgramServices>
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      <Occupancy>
        <Total>1307153</Total>
        <ProgramServices>30625</ProgramServices>
        <ManagementAndGeneral>1276528</ManagementAndGeneral>
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      <Travel>
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        <ProgramServices>301337</ProgramServices>
        <ManagementAndGeneral>10132</ManagementAndGeneral>
        <Fundraising>2030</Fundraising>
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      <ConferencesMeetings>
        <Total>129384</Total>
        <ProgramServices>2691</ProgramServices>
        <ManagementAndGeneral>126219</ManagementAndGeneral>
        <Fundraising>474</Fundraising>
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      <Interest>
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        <ManagementAndGeneral>54591</ManagementAndGeneral>
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      <DepreciationDepletion>
        <Total>1326917</Total>
        <ProgramServices>31545</ProgramServices>
        <ManagementAndGeneral>1283261</ManagementAndGeneral>
        <Fundraising>12111</Fundraising>
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      <Insurance>
        <Total>156903</Total>
        <ProgramServices>33841</ProgramServices>
        <ManagementAndGeneral>123062</ManagementAndGeneral>
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        <Description>EATERY FOR MUSEUM GUEST</Description>
        <Total>457392</Total>
        <ProgramServices>457392</ProgramServices>
      </OtherExpenses>
      <OtherExpenses>
        <Description>EXHIBITS AND RESEARCH</Description>
        <Total>351936</Total>
        <ProgramServices>351936</ProgramServices>
      </OtherExpenses>
      <OtherExpenses>
        <Description>MEMBERSHIP</Description>
        <Total>57855</Total>
        <ProgramServices>22122</ProgramServices>
        <ManagementAndGeneral>34163</ManagementAndGeneral>
        <Fundraising>1570</Fundraising>
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      <OtherExpenses>
        <Description>BUILDING ALLOCATION</Description>
        <Total>0</Total>
        <ProgramServices>1618756</ProgramServices>
        <ManagementAndGeneral>-1633315</ManagementAndGeneral>
        <Fundraising>14559</Fundraising>
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      <OtherExpenses>
        <Description>ADMINISTRATIVE ALLOCATI</Description>
        <Total>0</Total>
        <ProgramServices>1234954</ProgramServices>
        <ManagementAndGeneral>-1305238</ManagementAndGeneral>
        <Fundraising>70284</Fundraising>
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      <AllOtherExpenses>
        <Total>63717</Total>
        <ProgramServices>37289</ProgramServices>
        <ManagementAndGeneral>15527</ManagementAndGeneral>
        <Fundraising>10901</Fundraising>
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      <TotalFunctionalExpenses>
        <Total>13737618</Total>
        <ProgramServices>11344486</ProgramServices>
        <ManagementAndGeneral>1612104</ManagementAndGeneral>
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        <EOY>281900</EOY>
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      </SavingsAndTempCashInvestments>
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        <EOY>581190</EOY>
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      <AccountsReceivable>
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        <EOY>1270548</EOY>
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        <EOY>217000</EOY>
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        <EOY>351553</EOY>
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      <LandBldgEquipmentAccumDeprec>28143624</LandBldgEquipmentAccumDeprec>
      <LandBuildingsEquipmentBasisNet>
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        <EOY>15103859</EOY>
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      <InvestmentsPubTradedSecurities>
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        <EOY>32475133</EOY>
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        <BOY>18228990</BOY>
        <EOY>18145324</EOY>
      </InvestmentsOtherSecurities>
      <InvestmentsProgramRelated>
        <BOY>6771541</BOY>
        <EOY>7211074</EOY>
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        <BOY>715124</BOY>
        <EOY>429173</EOY>
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      <TotalAssets>
        <BOY>74764380</BOY>
        <EOY>76126251</EOY>
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      <AccountsPayableAccruedExpenses>
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      <DeferredRevenue>
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        <EOY>195740</EOY>
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      <TaxExemptBondLiabilities>
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        <EOY>1100000</EOY>
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      <OtherLiabilities>
        <BOY>5125416</BOY>
        <EOY>5139495</EOY>
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      <TotalLiabilities>
        <BOY>8190817</BOY>
        <EOY>7061441</EOY>
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      <FollowSFAS117>X</FollowSFAS117>
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      <PermanentlyRestrictedNetAssets>
        <BOY>44440661</BOY>
        <EOY>47573084</EOY>
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      <TotalNetAssetsFundBalances>
        <BOY>66573563</BOY>
        <EOY>69064810</EOY>
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      <TotalLiabNetAssetsFundBalances>
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      <InfoInScheduleOPartXI>X</InfoInScheduleOPartXI>
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      <ReconcilationOtherChanges>3852507</ReconcilationOtherChanges>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>0</AccountantCompileOrReview>
      <FSAudited>1</FSAudited>
      <AuditCommittee>1</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>1</FederalGrantAuditRequired>
      <FederalGrantAuditPerformed>1</FederalGrantAuditPerformed>
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      <GiftsGrantsContribReceived509>
        <CurrentTaxYearMinus4Years>7732830</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>10819590</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>6876128</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>5810719</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>5430352</CurrentTaxYear>
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      <GrossReceiptsFromAdmissions>
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        <CurrentTaxYearMinus1Year>3693605</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>3975761</CurrentTaxYear>
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        <CurrentTaxYearMinus3Years>14987708</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>10483570</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>9504324</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>9406113</CurrentTaxYear>
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      <AmtsRecdFromDisqualPersons>
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        <CurrentTaxYearMinus1Year>612033</CurrentTaxYearMinus1Year>
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      <AmtsFromSubstContributors>
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        <CurrentTaxYearMinus1Year>759206</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>636948</CurrentTaxYear>
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      </AmtsFromSubstContributors>
      <SupportFromDQPsEtc>
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        <CurrentTaxYearMinus3Years>2154219</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>1473300</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>1371239</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>1043537</CurrentTaxYear>
        <Total>6748636</Total>
      </SupportFromDQPsEtc>
      <PublicSupportTotal509>49178834</PublicSupportTotal509>
      <GrossInvestmentIncome509>
        <CurrentTaxYearMinus4Years>2598618</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>2804228</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>3240583</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>3557521</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>3289252</CurrentTaxYear>
        <Total>15490202</Total>
      </GrossInvestmentIncome509>
      <Post1975UBTI>
        <CurrentTaxYearMinus3Years>8765</CurrentTaxYearMinus3Years>
        <Total>8765</Total>
      </Post1975UBTI>
      <InvestmentIncomeAndUBTI>
        <CurrentTaxYearMinus4Years>2598618</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>2812993</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>3240583</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>3557521</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>3289252</CurrentTaxYear>
        <Total>15498967</Total>
      </InvestmentIncomeAndUBTI>
      <OtherIncome509>
        <CurrentTaxYearMinus1Year>-8861428</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>-319007</CurrentTaxYear>
        <Total>-9180435</Total>
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      <TotalSupportTotal>
        <CurrentTaxYearMinus4Years>14144373</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>17800701</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>13724153</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>4200417</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>12376358</CurrentTaxYear>
        <Total>62246002</Total>
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      <PublicSupportPercentage509>0.79010</PublicSupportPercentage509>
      <PriorYearSupportPercentage>0.79810</PriorYearSupportPercentage>
      <InvestmentIncomePercentage>0.24900</InvestmentIncomePercentage>
      <PriorYrInvestIncomePercentage>0.23210</PriorYrInvestIncomePercentage>
      <ThirtyThreePercntTestsCY509>X</ThirtyThreePercntTestsCY509>
      <GeneralExplanation>SCHEDULE A, PART IV, SUPPLEMENTAL INFORMATION: SCHEDULE A, PART III, LINE 12 EXPLANATION FOR OTHER INCOME: NET REALIZED INVESTMENT LOSS AS REPORTED IN PART III STATEMENT OF SERVICES, LINE 4D AND ON SCHEDULE O, THE ($319,007) IS THE REALIZED LOSS FROM INVESTMENT ACTIVITY AND REBALANCING THE ENDOWMENT PORTFOLIO. THE ENDOWMENT PROVIDES RESOUCES TO SUPPORT PROGRAM SERVICES.</GeneralExplanation>
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    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInfo>
        <ContributorNumber>RESTRICTED</ContributorNumber>
        <ContributorNameBusiness>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorNameBusiness>
        <ContributorAddressUS>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorAddressUS>
        <AggregateContributions>RESTRICTED</AggregateContributions>
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    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="RetDoc1039600001">
      <TotalDirectLobbying>
        <FilingOrganizationsTotals>98013</FilingOrganizationsTotals>
      </TotalDirectLobbying>
      <TotalLobbyingExpenditures>
        <FilingOrganizationsTotals>98013</FilingOrganizationsTotals>
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      <OtherExemptPurposeExpenditures>
        <FilingOrganizationsTotals>13996820</FilingOrganizationsTotals>
      </OtherExemptPurposeExpenditures>
      <TotalExemptPurposeExpenditures>
        <FilingOrganizationsTotals>14094833</FilingOrganizationsTotals>
      </TotalExemptPurposeExpenditures>
      <LobbyingNontaxableAmount>
        <FilingOrganizationsTotals>854742</FilingOrganizationsTotals>
      </LobbyingNontaxableAmount>
      <GrassrootsNontaxableAmount>
        <FilingOrganizationsTotals>213686</FilingOrganizationsTotals>
      </GrassrootsNontaxableAmount>
      <TotLobbyingGrassrootMinusNonTx>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
      </TotLobbyingGrassrootMinusNonTx>
      <TotLobbyExpendMnsLobbyingNontx>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
      </TotLobbyExpendMnsLobbyingNontx>
      <LobbyingNontaxableAmount2>
        <CurrentYearMinus3>870985</CurrentYearMinus3>
        <CurrentYearMinus2>892371</CurrentYearMinus2>
        <CurrentYearMinus1>903100</CurrentYearMinus1>
        <CurrentYear>854742</CurrentYear>
        <Total>3521198</Total>
      </LobbyingNontaxableAmount2>
      <LobbyingCeilingAmount>5281797</LobbyingCeilingAmount>
      <TotalLobbyingExpenditures2>
        <CurrentYearMinus3>139246</CurrentYearMinus3>
        <CurrentYearMinus2>147672</CurrentYearMinus2>
        <CurrentYearMinus1>116280</CurrentYearMinus1>
        <CurrentYear>98013</CurrentYear>
        <Total>501211</Total>
      </TotalLobbyingExpenditures2>
      <GrassrootsNontaxableAmount2>
        <CurrentYearMinus3>217746</CurrentYearMinus3>
        <CurrentYearMinus2>223093</CurrentYearMinus2>
        <CurrentYearMinus1>225775</CurrentYearMinus1>
        <CurrentYear>213686</CurrentYear>
        <Total>880300</Total>
      </GrassrootsNontaxableAmount2>
      <GrassrootsCeilingAmount>1320450</GrassrootsCeilingAmount>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CollectUsedForPublicExhibition>X</CollectUsedForPublicExhibition>
      <CollectUsedForScholarResearch>X</CollectUsedForScholarResearch>
      <CollectUsedForPreservation>X</CollectUsedForPreservation>
      <CollectUsedForLoanOrExchPrgrms>X</CollectUsedForLoanOrExchPrgrms>
      <SolicitedAssetsForSale>1</SolicitedAssetsForSale>
      <CurrentYear>
        <BeginningOfYearBalance>47438833</BeginningOfYearBalance>
        <Contributions>374640</Contributions>
        <InvestmentEarningsOrLosses>6248863</InvestmentEarningsOrLosses>
        <OtherExpenditures>4038282</OtherExpenditures>
        <EndOfYearBalance>50024054</EndOfYearBalance>
      </CurrentYear>
      <CurrentYearMinus1Year>
        <BeginningOfYearBalance>43115074</BeginningOfYearBalance>
        <Contributions>1428304</Contributions>
        <InvestmentEarningsOrLosses>7377655</InvestmentEarningsOrLosses>
        <OtherExpenditures>4418612</OtherExpenditures>
        <AdministrativeExpenses>63588</AdministrativeExpenses>
        <EndOfYearBalance>47438833</EndOfYearBalance>
      </CurrentYearMinus1Year>
      <BoardDesignatedEOYBalance>0.10640</BoardDesignatedEOYBalance>
      <PermanentEndowmentEOYBalance>0.80360</PermanentEndowmentEOYBalance>
      <TermEndowmentEOYBalance>0.09000</TermEndowmentEOYBalance>
      <EndowmentsHeldByUnrelatedOrgs>1</EndowmentsHeldByUnrelatedOrgs>
      <EndowmentsHeldByRelatedOrgs>0</EndowmentsHeldByRelatedOrgs>
      <Buildings>
        <OtherCostOrOtherBasis>32741855</OtherCostOrOtherBasis>
        <Depreciation>18945860</Depreciation>
        <BookValue>13795995</BookValue>
      </Buildings>
      <LeaseholdImprovements>
        <BookValue>0</BookValue>
      </LeaseholdImprovements>
      <Equipment>
        <OtherCostOrOtherBasis>10244873</OtherCostOrOtherBasis>
        <Depreciation>9178500</Depreciation>
        <BookValue>1066373</BookValue>
      </Equipment>
      <OtherLandBuildings>
        <OtherCostOrOtherBasis>260755</OtherCostOrOtherBasis>
        <Depreciation>19264</Depreciation>
        <BookValue>241491</BookValue>
      </OtherLandBuildings>
      <TotalOfBookValueLandBuildings>15103859</TotalOfBookValueLandBuildings>
      <OtherSecurities>
        <Description>MORGAN STANLEY INSTITUTIONAL</Description>
        <BookValue>1453672</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>GOLDMAN SACHS FUNDS</Description>
        <BookValue>7368449</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>MADISON INTERNATIONAL RE</Description>
        <BookValue>1581544</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>HARVEST MLP</Description>
        <BookValue>105496</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>FIR TREE CAPITAL</Description>
        <BookValue>2348542</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>VERDIS REAL ASSETS FUND</Description>
        <BookValue>866141</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>COLCHESTER GLOBAL BOND FUND</Description>
        <BookValue>2345040</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <OtherSecurities>
        <Description>FORESTER OFFSHORE LTD</Description>
        <BookValue>2076440</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
      <TotalOfBookValueSecurities>18145324</TotalOfBookValueSecurities>
      <InvestmentsProgramRelated>
        <Description>WOODWARD</Description>
        <BookValue>3578213</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </InvestmentsProgramRelated>
      <InvestmentsProgramRelated>
        <Description>SHARPE</Description>
        <BookValue>3094535</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </InvestmentsProgramRelated>
      <InvestmentsProgramRelated>
        <Description>CARPENTER</Description>
        <BookValue>406755</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </InvestmentsProgramRelated>
      <InvestmentsProgramRelated>
        <Description>MORRIS</Description>
        <BookValue>131571</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </InvestmentsProgramRelated>
      <TotalOfBookValueProgramRelated>7211074</TotalOfBookValueProgramRelated>
      <OtherLiabilities>
        <Description>ADDITIONAL MINIMUM LIABILITY-PENSION PLAN</Description>
        <Amount>4434794</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>PAYROLL TAXES AND BENEFITS PAYABLE</Description>
        <Amount>329313</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>LIFE INCOME GIFTS</Description>
        <Amount>306789</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>OTHER LIABILITIES</Description>
        <Amount>68599</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>5139495</TotalOfAmounts>
      <TotalRevenue>12376358</TotalRevenue>
      <TotalExpenses>13737618</TotalExpenses>
      <ExcessOrDeficitForYear>-1361260</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>3869405</NetUnrealizedGLOnInvestments>
      <OtherAmount>-16898</OtherAmount>
      <TotalAdjustments>3852507</TotalAdjustments>
      <ExcessOrDeficitPerFS>2491247</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>16602978</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>3869405</NetUnrealizedGainsInvestments>
      <DonatedSrvcAndUseOfFacilities>32200</DonatedSrvcAndUseOfFacilities>
      <OtherRevenues>325015</OtherRevenues>
      <RevenueNotRptdF990>4226620</RevenueNotRptdF990>
      <RevenueSubtotal>12376358</RevenueSubtotal>
      <RevenueNotRptdOnFinStmt>0</RevenueNotRptdOnFinStmt>
      <TotalRevenuePerForm990>12376358</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>14094833</TotExpensesEtcAuditedFinclStmt>
      <DonatedServicesUseOfFacilities>32200</DonatedServicesUseOfFacilities>
      <OtherExpensesIncluded>325015</OtherExpensesIncluded>
      <ExpensesNotRptdF990>357215</ExpensesNotRptdF990>
      <ExpensesSubtotal>13737618</ExpensesSubtotal>
      <ExpensesNotRptdOnFinStmt>0</ExpensesNotRptdOnFinStmt>
      <TotalExpensesPerForm990>13737618</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <ReturnReference>PART III, LINE 1A:</ReturnReference>
        <Explanation>THE COLLECTIONS, WHICH WERE ACQUIRED THROUGH PURCHASES AND CONTRIBUTIONS SINCE THE ACADEMY'S INCEPTION, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENT OF FINANCIAL POSITION. PURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN UNRESTRICTED NET ASSETS IN THE YEAR IN WHICH THE ITEMS ARE ACQUIRED OR AS TEMPORARILY OR PERMANENTLY RESTRICTED NET ASSETS IF THE ASSETS USED TO PURCHASE THE ITEMS ARE RESTRICTED BY DONORS. CONTRIBUTED COLLECTION ITEMS ARE NOT REFLECTED ON THE FINANCIAL STATEMENTS. PROCEEDS FROM DEACCESSIONS OR INSURANCE RECOVERIES ARE REFLECTED AS INCREASES IN THE APPROPRIATE NET ASSET CLASSES. THE ACADEMY'S COLLECTIONS ARE MADE UP OF LIBRARY HOLDINGS, SCIENTIFIC SPECIMENS, MINERALS, GEMS, EXHIBITS, AND ART OBJECTS THAT ARE HELD FOR EDUCATIONAL RESEARCH, SCIENTIFIC, AND CURATORIAL PURPOSES. EACH OF THE ITEMS IS CATALOGED, PRESERVED AND CARED FOR, AND ACTIVITIES VERIFYING THEIR EXISTENCE AND ASSESSING THEIR CONDITION ARE PERFORMED CONTINUOUSLY.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <ReturnReference>PART III, LINE 4:</ReturnReference>
        <Explanation>THE ACADEMY'S COLLECTIONS OF MORE THAN 17 MILLION CATALOGED NATURAL HISTORY SPECIMENS AND ARTIFACTS ARE COLLECTIVELY AMONG THE 10 LARGEST IN THE UNITED STATES. THROUGH ITS THREE MAIN COMPONENTS-RESEARCH, EDUCATION AND MUSEUM-THE ACADEMY WORKS TO SHARE IT SCIENTIFIC KNOWLEDGE GAINED FROM THE COLLECTIONS AND OTHER ORGANIZATIONS, GOVERNMENTS, BUSINESSES, AND INDIVIDUALS TO INSPIRE STEWARDSHIP IN THE ENVIRONMENT AND TO PROMOTE AND ENCOURAGE CONTINUED INVESTMENT IN THE NATURAL SCIENCES.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF INTENDED USE OF ENDOWMENT FUNDS:</Identifier>
        <ReturnReference>PART V, LINE 4:</ReturnReference>
        <Explanation>THE ENDOWMENT FUNDS WERE ESTABLISHED TO SUPPORT SPECIFIC COLLECTIONS AND RESEARCH, EDUCATION, PUBLICATIONS, THE LIBRARY, DEPARTMENTAL CHAIRS AND POSITIONS, AND THE OVERALL OPERATION OF THE ACADEMY OF NATURAL SCIENCES.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF UNCERTAIN TAX POSITIONS UNDER FIN 48:</Identifier>
        <ReturnReference>PART X:</ReturnReference>
        <Explanation>PART X-LINE 25: THE ACADEMY DID NOT HAVE A FIN 48 LIABILITY FOR AN UNCERTAIN TAX POSITION IN ITS AUDITED FINANCIAL STATEMENTS.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XI, LINE 8 - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>NET UNREALIZED GAINS ON INVESTMENTS FOR THE YEAR EFFECT OF FASB STATEMENT NO. 158, CUMULATIVE EFFECT OF CHANGE IN DEFINED BENEFIT RETIREMENT PLAN LIABILITY -16,898.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Explanation>PART XII-LINE 2D-EXPENSES OF $93,159 ASSOCIATED WITH GENERATING MISCELLANEOUS REVENUE. EXPENSES ASSOCIATED WITH SPECIAL EVENT $49,456 (SEE PART VIII FORM 990 LINE 8B). COST OF GOODS SOLD $248,298 (SEE PART VIII FORM 990 LINE 10B). PART XIII-LINE 2D-EXPENSES OF $93,159 ASSOCIATED WITH GENERATING MISCELLANEOUS REVENUE. EXPENSES ASSOCIATED WITH SPECIAL EVENT $49,456 (SEE PART VIII FORM 990 LINE 8B). COST OF GOODS SOLD $248,298 (SEE PART VIII FORM 990 LINE 10B).</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <AcctsActvsOutUSTable>
        <Region>EAST ASIA &amp; THE PACIFIC</Region>
        <TypeOfActivitiesConducted>PROGRAM SERVICES</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH / COLLECTING</SpecificServicesProvided>
        <TotalExpenditures>2390</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <AcctsActvsOutUSTable>
        <Region>EUROPE</Region>
        <TypeOfActivitiesConducted>PROGRAM SERVICES</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH / COLLECTING</SpecificServicesProvided>
        <TotalExpenditures>7780</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <AcctsActvsOutUSTable>
        <Region>SUB-SAHARAN AFRICA</Region>
        <TypeOfActivitiesConducted>PROGRAM SERVICES</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH / COLLECTING</SpecificServicesProvided>
        <TotalExpenditures>2191</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <AcctsActvsOutUSTable>
        <Region>NORTH AMERICA</Region>
        <TypeOfActivitiesConducted>PROGRAM SERVICES</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH / COLLECTING</SpecificServicesProvided>
        <TotalExpenditures>56650</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <AcctsActvsOutUSTable>
        <Region>SOUTH AMERICA</Region>
        <NumberOfEmployees>1</NumberOfEmployees>
        <TypeOfActivitiesConducted>PROGRAM SERVICES</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH / COLLECTING</SpecificServicesProvided>
        <TotalExpenditures>52325</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <AcctsActvsOutUSTable>
        <Region>CENTRAL AMERICA</Region>
        <TypeOfActivitiesConducted>PROGRAM SERVICES</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH / COLLECTING</SpecificServicesProvided>
        <TotalExpenditures>1158</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <SubtotalNumberOfEmployees>1</SubtotalNumberOfEmployees>
      <ContNumberOfEmployees>0</ContNumberOfEmployees>
      <TotalNumberOfEmployees>1</TotalNumberOfEmployees>
      <SubtotalAmountSpent>122494</SubtotalAmountSpent>
      <ContAmountSpent>0</ContAmountSpent>
      <TotalAmountSpent>122494</TotalAmountSpent>
      <TransferToForeignCorp>0</TransferToForeignCorp>
      <InterestInForeignTrust>0</InterestInForeignTrust>
      <OwnForeignCorp>0</OwnForeignCorp>
      <PassiveForeignInvestCo>0</PassiveForeignInvestCo>
      <ForeignPartnership>1</ForeignPartnership>
      <BoycottCountries>0</BoycottCountries>
      <Form990ScheduleFPartV>
        <Identifier>METHOD USED TO ACCCOUNT FOR EXPENDITURES:</Identifier>
        <Explanation>SCHEDULE F, PART I, LINE 3: THE EXPENDITURES INCURRED IN ACTIVITIES OUTSIDE THE UNITED STATES ARE TRACKED ON EXPENSE REPORTS SUBMITTED BY THE SCIENTISTS AND EMPLOYEES. THE EXPENSE REPORTS DOCUMENT THE ACTUAL EXPENDITURES AND DISBURSEMENTS MADE WITHIN THE FOREIGN LOCATION.</Explanation>
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    <IRS990ScheduleG documentId="RetDoc1041300001">
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        <NameOfEvent1>SHELL SHOW</NameOfEvent1>
        <GrossReceiptsEvent1>56325</GrossReceiptsEvent1>
        <CharitableContributionsEvent1>15095</CharitableContributionsEvent1>
        <GrossRevenueEvent1>41230</GrossRevenueEvent1>
        <GrossReceiptsTotal>56325</GrossReceiptsTotal>
        <CharitableContributionsTotal>15095</CharitableContributionsTotal>
        <GrossRevenueTotalEvents>41230</GrossRevenueTotalEvents>
        <NetIncomeSummary>41230</NetIncomeSummary>
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    <IRS990ScheduleJ documentId="RetDoc1042400001">
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      <Form990OfOtherOrganizations>X</Form990OfOtherOrganizations>
      <WrittenEmploymentContract>X</WrittenEmploymentContract>
      <CompensationSurvey>X</CompensationSurvey>
      <BoardOrCommitteeApproval>X</BoardOrCommitteeApproval>
      <SeverancePayment>0</SeverancePayment>
      <SupplementalNonqualRetirePlan>0</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>0</EquityBasedCompArrangement>
      <CompBasedOnRevenueOfFilingOrg>0</CompBasedOnRevenueOfFilingOrg>
      <CompBasedOnRevenueRelatedOrgs>0</CompBasedOnRevenueRelatedOrgs>
      <CompBasedNetEarningsFilingOrg>0</CompBasedNetEarningsFilingOrg>
      <CompBasedNetEarningsRelateOrgs>0</CompBasedNetEarningsRelateOrgs>
      <AnyNonFixedPayments>0</AnyNonFixedPayments>
      <InitialContractException>0</InitialContractException>
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    <IRS990ScheduleL documentId="RetDoc1042800001">
      <Form990ScheduleLPartIV>
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          <NamePerson>MIGUEL PEREZ-PEREZ</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>RELATED TO BOARD MEMBER</Relationship>
        <AmountOfTransaction>21451</AmountOfTransaction>
        <DescriptionOfTransaction>EMPLOYMENT</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>PETER AUSTEN</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD MEMBER</Relationship>
        <AmountOfTransaction>236031</AmountOfTransaction>
        <DescriptionOfTransaction>INSURANCE</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartV>
        <Identifier>SCHEDULE L-PART V-SUPPLEMENTAL INFORMATION</Identifier>
        <ReturnReference>BUSINESS TRANSACTIONS INVOLVING INTERESTED PERSONS</ReturnReference>
        <Explanation>THE ACADEMY HAS UTILIZED WILLIS OF PA TO PROVIDE INSURANCE BROKERAGE SERVICES FOR MANY YEARS. IN 2010, PETER AUSTEN JOINED THE ACADEMY'S BOARD OF TRUSTEES. MR. AUSTEN IS THE REGIONAL PARTNER FOR WILLIS NORTH AMERICA, WHICH INCLUDES WILLIS OF PA. WILLIS PROVIDES BROKERAGE SERVICE CONNECTING INSURANCE CARRIERS WITH CLIENTS TO FIND THE BEST COVERAGE AT THE BEST PRICE. WILLIS COLLECTS BOTH THE PREMIUM PAYMENTS FOR THE INSURANCE CARRIERS AND A SERVICE COMMISSION FOR THEIR BROKERAGE AND RISK MANAGEMENT CONSULTING SERVICES. THE $236,031 OF INSURANCE PAYMENTS TO WILLIS OF PA INCLUDES $33,487 OF</Explanation>
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    <IRS990ScheduleM documentId="RetDoc1042900001">
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        <NonCashCheckbox>X</NonCashCheckbox>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </BooksAndPublications>
      <ClothingAndHouseholdGoods>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </ClothingAndHouseholdGoods>
      <SecuritiesPubliclyTraded>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>15</NumberOfContributions>
        <NoncashContribsRptdF990>190690</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>SELLING PRICE</MethodOfDeterminingRevenues>
      </SecuritiesPubliclyTraded>
      <Collectibles>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </Collectibles>
      <FoodInventory>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </FoodInventory>
      <Taxidermy>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </Taxidermy>
      <HistoricalArtifacts>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </HistoricalArtifacts>
      <ScientificSpecimens>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>7</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </ScientificSpecimens>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>PARKING SPACE</Description>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>N/A</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <AnyPropertyThatMustBeHeld>0</AnyPropertyThatMustBeHeld>
      <ReviewProcessUnusualNCGifts>1</ReviewProcessUnusualNCGifts>
      <ThirdPartiesUsed>0</ThirdPartiesUsed>
      <Form990ScheduleMPartII>
        <Identifier>THIRD PARTY USE:</Identifier>
        <ReturnReference>PART I, LINE 32B:</ReturnReference>
        <Explanation>THE ORGANIZATION IS REPORTING THE NUMBER OF CONTRIBUTIONS IN COLUMN (B) NOT THE NUMBER OF ITEMS.</Explanation>
      </Form990ScheduleMPartII>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION A, LINE 4</Identifier>
        <Explanation>THE BOARD OF TRUSTEES AMENDED THE BY-LAWS TO CLARIFY TERM LIMITS FOR TRUSTEES ELECTED OUTSIDE THE ANNUAL MEETING OR TO A TERM OF LESS THAN 3 YEARS. THE ELECTION OF EMERITUS AND HONORARY TRUSTEES WSA FURTHER DEFINED ALONG WITH CLARIFICATION OF THEIR ROLES SHOULD THEY PARTICIPATE ON STANDING COMMITTEES. LANGUAGE WAS ALSO CLARIFIED REGARDING THE BOARD OF TRUSTEES AUTHORITY TO AMEND THE BY-LAWS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION A, LINE 6</Identifier>
        <Explanation>THE MEMBERSHIP OF THE ACADEMY CONSISTS OF GENERAL MEMBERS AND OTHER CLASSES OF SPECIAL MEMBERSHIP AS MAY BE ESTABLISHED BY THE BOARD OF TRUSTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION A, LINE 7A</Identifier>
        <Explanation>EACH MEMBER SHALL, IF HE OR SHE IS OVER 18 YEARS OF AGE, BE ENTITLED TO VOTE, IN PERSON, AT THE ANNUAL MEETING AND ALSO HOLD OFFICE. ANY PERSON MAY BECOME A GENERAL MEMBER BY MAKING THE APPROPRIATE ANNUAL CONTRIBUTION. THE MEMBERSHIP ELECTS THE TRUSTEES OF THE ACADEMY AT THE ANNUAL MEETING. TRUSTEES ARE ELECTED TO A THREE YEAR TERM. THE BOARD OF TRUSTEES IS THE GOVERNING BODY AND RESPONSIBLE FOR THE MANAGEMENT AND AFFAIRS OF THE ACADEMY.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION A, LINE 7B</Identifier>
        <Explanation>TO THE FULLEST EXTENT PERMITTED UNDER THE PENNSYLVANIA NONPROFIT CORPORATION LAW OF 1988, AS AMENDED, CERTAIN CORPORATE ACTIONS REQUIRE THE APPROVAL OF THE MEMBERS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION B, LINE 11</Identifier>
        <Explanation>THE DRAFT 990 IS PREPARED INTERNALLY AND REVIEWED BY OUR EXTERNAL AUDITORS ZELENKOFSKE AXELROD LLC. THE DRAFT 990 IS THEN REVIEWED BY THE ACADEMY'S AUDIT COMMITTEE, WITH THE EXTERNAL AUDITORS PRESENT. THE AUDIT COMMITTEE WILL APPROVE THE FINAL VERSION AND DIRECT THE EXTERNAL AUDITORS TO FILE THE RETURN. A COPY OF THE FINAL VERSION IS DISTRIBUTED TO ALL MEMBERS OF THE BOARD OF TRUSTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>ALL TRUSTEES AND APPROPRIATE ACADEMY STAFF REVIEW AND SIGN A CONFLICT OF INTEREST POLICY EACH YEAR WHICH IS MONITORED FOR COMPLIANCE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15</ReturnReference>
        <Explanation>THE COMPENSATION OF THE ACADEMY'S CEO WAS RECOMMENDED BY THE ACADEMY'S SEARCH COMMITTEE WORKING WITH AN EXECUTIVE SEARCH FIRM AND APPROVED BY THE BOARD OF TRUSTEES. THE COMPENSATION WAS BASED ON DATA PROVIDED BY THE SEARCH FIRM THAT FACTORED IN THE SPECIFIC INDUSTRY ALONG WITH THE GEOGRAPHIC REGION. THE SEARCH FIRM ALSO PROVIDED DATA ON THE OTHER NON-PROFIT CEO'S WITHIN THE REGION TO HELP RECOMMEND AN APPROPRIATE SALARY RANGE. A THIRD PARTY COMPENSATION SPECIALIST REVIEWED ALL POSITIONS AT THE ACADEMY AND RECOMMENDED A COMPENSATION STRUCTURE BASED ON JOB CLASS, INDUSTRY SECTOR AND GEOGRAPHIC REGION. INDIVIDUAL COMPENSATION LEVELS ARE ESTABLISHED WITHIN THE RANGE FOR THE GIVEN POSITION BASED ON EXPERIENCE AND YEARS OF SERVICE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>THROUGH THE ACADEMY WEBSITE THE PUBLIC MAY REQUEST THE ACADEMY'S BY-LAWS, ARTICLES OF INCORPORATION, FORM 990, CODE OF ETHICS AND CONDUCT AND THE CURRENT AUDIT FINANCIAL STATEMENTS. THE ACADEMY WILL ALSO RESPOND TO WRITTEN REQUESTS AS WELL AS PHONE REQUESTS FOR INFORMATION FOR THOSE WITHOUT COMPUTER ACCESS. THE ACADEMY'S 990 ALSO APPEARS ON INDEPENDENT NON-PROFIT WEBSITES LIKE GUIDESTAR AND CHARITY NAVIGATOR.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED GAIN (LOSS) ON INVESTMENTS 3,852,507. TOTAL TO FORM 990, PART XI, LINE 5: 3,852,507.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>SCHEDULE L PART IV: INTERESTED PERSONS</ReturnReference>
        <Explanation>MIGUEL PEREZ-PEREZ IS THE SON-IN-LAW OF A MEMBER OF THE ACADEMY'S BOARD OF TRUSTEES. MIGUEL WORKS IN THE BOTANY DEPARTMENT OF THE ACADEMY AS A CURATORIAL ASSISTANT.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>