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      <NetIncomeOrLoss>
        <TotalRevenueColumn>640190</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>640190</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>0</UnrelatedBusinessRevenue>
        <ExclusionAmount>0</ExclusionAmount>
      </NetIncomeOrLoss>
      <OtherRevenueMisc>
        <Description>Ancillary services</Description>
        <BusinessCode>531120</BusinessCode>
        <TotalRevenueColumn>1464111</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>0</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>410086</UnrelatedBusinessRevenue>
        <ExclusionAmount>1054025</ExclusionAmount>
      </OtherRevenueMisc>
      <OtherRevenueMisc>
        <Description>Concession fees</Description>
        <BusinessCode>453220</BusinessCode>
        <TotalRevenueColumn>1023033</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>0</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>0</UnrelatedBusinessRevenue>
        <ExclusionAmount>1023033</ExclusionAmount>
      </OtherRevenueMisc>
      <OtherRevenueMisc>
        <Description>Sponsorship</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>910577</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>0</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>0</UnrelatedBusinessRevenue>
        <ExclusionAmount>910577</ExclusionAmount>
      </OtherRevenueMisc>
      <MiscellaneousRevenue>
        <TotalRevenueColumn>479267</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>0</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>0</UnrelatedBusinessRevenue>
        <ExclusionAmount>479267</ExclusionAmount>
      </MiscellaneousRevenue>
      <TotalOtherRevenue>3876988</TotalOtherRevenue>
      <TotalRevenue>
        <TotalRevenueColumn>48160611</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>18187399</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>410086</UnrelatedBusinessRevenue>
        <ExclusionAmount>6665580</ExclusionAmount>
      </TotalRevenue>
      <GrantsToDomesticOrgs>
        <Total>3551460</Total>
        <ProgramServices>3551460</ProgramServices>
      </GrantsToDomesticOrgs>
      <GrantsToDomesticIndividuals>
        <Total>311904</Total>
        <ProgramServices>311904</ProgramServices>
      </GrantsToDomesticIndividuals>
      <ForeignGrants>
        <Total>161500</Total>
        <ProgramServices>161500</ProgramServices>
      </ForeignGrants>
      <BenefitsToMembers>
        <Total>0</Total>
        <ProgramServices>0</ProgramServices>
      </BenefitsToMembers>
      <CompCurrentOfficersDirectors>
        <Total>1287903</Total>
        <ProgramServices>341201</ProgramServices>
        <ManagementAndGeneral>561721</ManagementAndGeneral>
        <Fundraising>384981</Fundraising>
      </CompCurrentOfficersDirectors>
      <CompDisqualPersons>
        <Total>0</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </CompDisqualPersons>
      <OtherSalariesAndWages>
        <Total>18241733</Total>
        <ProgramServices>14297990</ProgramServices>
        <ManagementAndGeneral>1520826</ManagementAndGeneral>
        <Fundraising>2422917</Fundraising>
      </OtherSalariesAndWages>
      <PensionPlanContributions>
        <Total>978823</Total>
        <ProgramServices>760067</ProgramServices>
        <ManagementAndGeneral>86741</ManagementAndGeneral>
        <Fundraising>132015</Fundraising>
      </PensionPlanContributions>
      <OtherEmployeeBenefits>
        <Total>2050282</Total>
        <ProgramServices>1592068</ProgramServices>
        <ManagementAndGeneral>181690</ManagementAndGeneral>
        <Fundraising>276524</Fundraising>
      </OtherEmployeeBenefits>
      <PayrollTaxes>
        <Total>1375664</Total>
        <ProgramServices>1068220</ProgramServices>
        <ManagementAndGeneral>121907</ManagementAndGeneral>
        <Fundraising>185537</Fundraising>
      </PayrollTaxes>
      <FeesForServicesManagement>
        <Total>0</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </FeesForServicesManagement>
      <FeesForServicesLegal>
        <Total>56383</Total>
        <ProgramServices>3100</ProgramServices>
        <ManagementAndGeneral>53283</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
        <Total>175800</Total>
        <ManagementAndGeneral>175800</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </FeesForServicesAccounting>
      <FeesForServicesLobbying>
        <Total>92688</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>7500</ManagementAndGeneral>
        <Fundraising>85188</Fundraising>
      </FeesForServicesLobbying>
      <FeesForServicesProfFundraising>
        <Total>120778</Total>
        <Fundraising>120778</Fundraising>
      </FeesForServicesProfFundraising>
      <FeesForServicesInvstMgmntFees>
        <Total>0</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </FeesForServicesInvstMgmntFees>
      <FeesForServicesOther>
        <Total>3144120</Total>
        <ProgramServices>2570971</ProgramServices>
        <ManagementAndGeneral>222836</ManagementAndGeneral>
        <Fundraising>350313</Fundraising>
      </FeesForServicesOther>
      <Advertising>
        <Total>2609286</Total>
        <ProgramServices>2573634</ProgramServices>
        <ManagementAndGeneral>19616</ManagementAndGeneral>
        <Fundraising>16036</Fundraising>
      </Advertising>
      <OfficeExpenses>
        <Total>2639704</Total>
        <ProgramServices>2009187</ProgramServices>
        <ManagementAndGeneral>316433</ManagementAndGeneral>
        <Fundraising>314084</Fundraising>
      </OfficeExpenses>
      <InformationTechnology>
        <Total>375367</Total>
        <ProgramServices>234844</ProgramServices>
        <ManagementAndGeneral>89375</ManagementAndGeneral>
        <Fundraising>51148</Fundraising>
      </InformationTechnology>
      <Royalties>
        <Total>6894</Total>
        <ProgramServices>795</ProgramServices>
        <Fundraising>6099</Fundraising>
      </Royalties>
      <Occupancy>
        <Total>2398202</Total>
        <ProgramServices>2063774</ProgramServices>
        <ManagementAndGeneral>287116</ManagementAndGeneral>
        <Fundraising>47312</Fundraising>
      </Occupancy>
      <Travel>
        <Total>725886</Total>
        <ProgramServices>628061</ProgramServices>
        <ManagementAndGeneral>73574</ManagementAndGeneral>
        <Fundraising>24251</Fundraising>
      </Travel>
      <TravelEntrtnmntPublicOfficials>
        <Total>0</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </TravelEntrtnmntPublicOfficials>
      <ConferencesMeetings>
        <Total>76978</Total>
        <ProgramServices>54379</ProgramServices>
        <ManagementAndGeneral>13284</ManagementAndGeneral>
        <Fundraising>9315</Fundraising>
      </ConferencesMeetings>
      <Interest>
        <Total>68074</Total>
        <ProgramServices>3035</ProgramServices>
        <ManagementAndGeneral>63896</ManagementAndGeneral>
        <Fundraising>1143</Fundraising>
      </Interest>
      <PaymentsToAffiliates>
        <Total>0</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </PaymentsToAffiliates>
      <DepreciationDepletion>
        <Total>4380076</Total>
        <ProgramServices>3997618</ProgramServices>
        <ManagementAndGeneral>323704</ManagementAndGeneral>
        <Fundraising>58754</Fundraising>
      </DepreciationDepletion>
      <Insurance>
        <Total>384713</Total>
        <ProgramServices>13680</ProgramServices>
        <ManagementAndGeneral>371033</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </Insurance>
      <OtherExpenses>
        <Description>Film and exhibit rental</Description>
        <Total>669371</Total>
        <ProgramServices>669371</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Catering</Description>
        <Total>560869</Total>
        <ProgramServices>378479</ProgramServices>
        <ManagementAndGeneral>43218</ManagementAndGeneral>
        <Fundraising>139172</Fundraising>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Credit card handling fees</Description>
        <Total>570505</Total>
        <ProgramServices>558727</ProgramServices>
        <ManagementAndGeneral>24</ManagementAndGeneral>
        <Fundraising>11754</Fundraising>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Taxes</Description>
        <Total>157151</Total>
        <ProgramServices>128051</ProgramServices>
        <ManagementAndGeneral>29100</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
      </OtherExpenses>
      <OtherExpenses>
        <Description>Fundraising expense reported in Part VIII</Description>
        <Total>-264729</Total>
        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>-264729</Fundraising>
      </OtherExpenses>
      <AllOtherExpenses>
        <Total>843641</Total>
        <ProgramServices>383775</ProgramServices>
        <ManagementAndGeneral>346865</ManagementAndGeneral>
        <Fundraising>113001</Fundraising>
      </AllOtherExpenses>
      <TotalFunctionalExpenses>
        <Total>47751026</Total>
        <ProgramServices>38355891</ProgramServices>
        <ManagementAndGeneral>4909542</ManagementAndGeneral>
        <Fundraising>4485593</Fundraising>
      </TotalFunctionalExpenses>
      <CashNonInterestBearing>
        <BOY>1070234</BOY>
        <EOY>12113896</EOY>
      </CashNonInterestBearing>
      <SavingsAndTempCashInvestments>
        <BOY>2292132</BOY>
        <EOY>487865</EOY>
      </SavingsAndTempCashInvestments>
      <PledgesAndGrantsReceivable>
        <BOY>23076195</BOY>
        <EOY>19083477</EOY>
      </PledgesAndGrantsReceivable>
      <AccountsReceivable>
        <BOY>1030582</BOY>
        <EOY>635839</EOY>
      </AccountsReceivable>
      <ReceivablesFromOfficersEtc>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </ReceivablesFromOfficersEtc>
      <ReceivablesFromDisqualPersons>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </ReceivablesFromDisqualPersons>
      <OtherNotesLoansReceivableNet>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </OtherNotesLoansReceivableNet>
      <InventoriesForSaleOrUse>
        <BOY>75121</BOY>
        <EOY>70935</EOY>
      </InventoriesForSaleOrUse>
      <PrepaidExpensesDeferredCharges>
        <BOY>1345881</BOY>
        <EOY>1471871</EOY>
      </PrepaidExpensesDeferredCharges>
      <LandBuildingsEquipmentBasis>116668867</LandBuildingsEquipmentBasis>
      <LandBldgEquipmentAccumDeprec>60791471</LandBldgEquipmentAccumDeprec>
      <LandBuildingsEquipmentBasisNet>
        <BOY>50732894</BOY>
        <EOY>55877396</EOY>
      </LandBuildingsEquipmentBasisNet>
      <InvestmentsPubTradedSecurities>
        <BOY>23930190</BOY>
        <EOY>17250346</EOY>
      </InvestmentsPubTradedSecurities>
      <InvestmentsOtherSecurities>
        <BOY>69148339</BOY>
        <EOY>78920895</EOY>
      </InvestmentsOtherSecurities>
      <OtherAssetsTotal>
        <BOY>204584</BOY>
        <EOY>232083</EOY>
      </OtherAssetsTotal>
      <TotalAssets>
        <BOY>172906152</BOY>
        <EOY>186144603</EOY>
      </TotalAssets>
      <AccountsPayableAccruedExpenses>
        <BOY>4849944</BOY>
        <EOY>5752584</EOY>
      </AccountsPayableAccruedExpenses>
      <DeferredRevenue>
        <BOY>3988966</BOY>
        <EOY>5177147</EOY>
      </DeferredRevenue>
      <MortNotesPyblSecuredInvestProp>
        <BOY>1010346</BOY>
        <EOY>3478678</EOY>
      </MortNotesPyblSecuredInvestProp>
      <OtherLiabilities>
        <BOY>5374760</BOY>
        <EOY>5244022</EOY>
      </OtherLiabilities>
      <TotalLiabilities>
        <BOY>15224016</BOY>
        <EOY>19652431</EOY>
      </TotalLiabilities>
      <FollowSFAS117>X</FollowSFAS117>
      <UnrestrictedNetAssets>
        <BOY>51692020</BOY>
        <EOY>56096828</EOY>
      </UnrestrictedNetAssets>
      <TemporarilyRestrictedNetAssets>
        <BOY>70395270</BOY>
        <EOY>73774658</EOY>
      </TemporarilyRestrictedNetAssets>
      <PermanentlyRestrictedNetAssets>
        <BOY>35594846</BOY>
        <EOY>36620686</EOY>
      </PermanentlyRestrictedNetAssets>
      <TotalNetAssetsFundBalances>
        <BOY>157682136</BOY>
        <EOY>166492172</EOY>
      </TotalNetAssetsFundBalances>
      <TotalLiabNetAssetsFundBalances>
        <BOY>172906152</BOY>
        <EOY>186144603</EOY>
      </TotalLiabNetAssetsFundBalances>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>0</AccountantCompileOrReview>
      <FSAudited>1</FSAudited>
      <AuditCommittee>1</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>1</FederalGrantAuditRequired>
      <FederalGrantAuditPerformed>1</FederalGrantAuditPerformed>
    </IRS990>
    <IRS990ScheduleA documentId="R000002" softwareId="09000073" softwareVersion="v1.00">
      <PubliclySupportedOrg170b1Avi>X</PubliclySupportedOrg170b1Avi>
      <GiftsGrantsContribReceived170>
        <CurrentTaxYearMinus4Years>27527376</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>44823028</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>21827627</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>18733125</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>22897546</CurrentTaxYear>
        <Total>135808702</Total>
      </GiftsGrantsContribReceived170>
      <TaxRevLeviedForOrgBenefit170>
        <CurrentTaxYearMinus4Years>0</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>0</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>0</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>0</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>0</CurrentTaxYear>
        <Total>0</Total>
      </TaxRevLeviedForOrgBenefit170>
      <ValueSrvcFcltsFurnishedByGovt>
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        <CurrentTaxYearMinus3Years>0</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>0</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>0</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>0</CurrentTaxYear>
        <Total>0</Total>
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        <CurrentTaxYearMinus4Years>27527376</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>44823028</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>21827627</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>18733125</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>22897546</CurrentTaxYear>
        <Total>135808702</Total>
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      <AmountsSubstContributorsTotal>20774485</AmountsSubstContributorsTotal>
      <PublicSupportTotal170>115034217</PublicSupportTotal170>
      <GrossInvestmentIncome170>
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        <CurrentTaxYearMinus3Years>3596735</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>4679181</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>2510337</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>2471312</CurrentTaxYear>
        <Total>16346200</Total>
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      <NetUBI>
        <CurrentTaxYearMinus4Years>0</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>0</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>0</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>11544</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>45745</CurrentTaxYear>
        <Total>57289</Total>
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      <OtherIncome170>
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        <CurrentTaxYearMinus3Years>432229</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>444974</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>292778</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>552096</CurrentTaxYear>
        <Total>2015870</Total>
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      <TotalSupport>154228061</TotalSupport>
      <GrossReceiptsFromAdmissionsEtc>115032869</GrossReceiptsFromAdmissionsEtc>
      <PublicSupportPertcentage170>0.74587</PublicSupportPertcentage170>
      <PublicSupportPertcentPriorYear>0.75047</PublicSupportPertcentPriorYear>
      <ThirtyThreePercntTestsCY170>X</ThirtyThreePercntTestsCY170>
      <GeneralExplanation>"Other income" includes gross receipts from fundraising events, souvenir vending machine commissions, locker rental, insurance coverage of losses, and other miscellaneous income.</GeneralExplanation>
    </IRS990ScheduleA>
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        <ContributorNameBusiness>
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        </ContributorNameBusiness>
        <ContributorAddressUS>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorAddressUS>
        <AggregateContributions>RESTRICTED</AggregateContributions>
      </ContributorInfo>
    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="R000004" softwareId="09000073" softwareVersion="v1.00">
      <TotalGrassrootsLobbying>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
      </TotalGrassrootsLobbying>
      <TotalDirectLobbying>
        <FilingOrganizationsTotals>221293</FilingOrganizationsTotals>
      </TotalDirectLobbying>
      <TotalLobbyingExpenditures>
        <FilingOrganizationsTotals>221293</FilingOrganizationsTotals>
      </TotalLobbyingExpenditures>
      <OtherExemptPurposeExpenditures>
        <FilingOrganizationsTotals>38355891</FilingOrganizationsTotals>
      </OtherExemptPurposeExpenditures>
      <TotalExemptPurposeExpenditures>
        <FilingOrganizationsTotals>38577184</FilingOrganizationsTotals>
      </TotalExemptPurposeExpenditures>
      <LobbyingNontaxableAmount>
        <FilingOrganizationsTotals>1000000</FilingOrganizationsTotals>
      </LobbyingNontaxableAmount>
      <GrassrootsNontaxableAmount>
        <FilingOrganizationsTotals>250000</FilingOrganizationsTotals>
      </GrassrootsNontaxableAmount>
      <TotLobbyingGrassrootMinusNonTx>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
      </TotLobbyingGrassrootMinusNonTx>
      <TotLobbyExpendMnsLobbyingNontx>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
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      <LobbyingNontaxableAmount2>
        <CurrentYearMinus3>1000000</CurrentYearMinus3>
        <CurrentYearMinus2>1000000</CurrentYearMinus2>
        <CurrentYearMinus1>1000000</CurrentYearMinus1>
        <CurrentYear>1000000</CurrentYear>
        <Total>4000000</Total>
      </LobbyingNontaxableAmount2>
      <LobbyingCeilingAmount>6000000</LobbyingCeilingAmount>
      <TotalLobbyingExpenditures2>
        <CurrentYearMinus3>239893</CurrentYearMinus3>
        <CurrentYearMinus2>219328</CurrentYearMinus2>
        <CurrentYearMinus1>208675</CurrentYearMinus1>
        <CurrentYear>221293</CurrentYear>
        <Total>889189</Total>
      </TotalLobbyingExpenditures2>
      <GrassrootsNontaxableAmount2>
        <CurrentYearMinus3>250000</CurrentYearMinus3>
        <CurrentYearMinus2>250000</CurrentYearMinus2>
        <CurrentYearMinus1>250000</CurrentYearMinus1>
        <CurrentYear>250000</CurrentYear>
        <Total>1000000</Total>
      </GrassrootsNontaxableAmount2>
      <GrassrootsCeilingAmount>1500000</GrassrootsCeilingAmount>
      <GrassrootsLobbyingExpenditures>
        <CurrentYearMinus3>0</CurrentYearMinus3>
        <CurrentYearMinus2>0</CurrentYearMinus2>
        <CurrentYearMinus1>0</CurrentYearMinus1>
        <CurrentYear>0</CurrentYear>
        <Total>0</Total>
      </GrassrootsLobbyingExpenditures>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="R000005" softwareId="09000073" softwareVersion="v1.00">
      <HeldWorksOfArtAmts>
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        <AssetsInPartX>0</AssetsInPartX>
      </HeldWorksOfArtAmts>
      <CollectUsedForPublicExhibition>X</CollectUsedForPublicExhibition>
      <CollectUsedForPreservation>X</CollectUsedForPreservation>
      <SolicitedAssetsForSale>0</SolicitedAssetsForSale>
      <CurrentYear>
        <BeginningOfYearBalance>77585393</BeginningOfYearBalance>
        <Contributions>1975603</Contributions>
        <InvestmentEarningsOrLosses>8995803</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>64537</GrantsOrScholarships>
        <OtherExpenditures>4407691</OtherExpenditures>
        <AdministrativeExpenses>0</AdministrativeExpenses>
        <EndOfYearBalance>84084571</EndOfYearBalance>
      </CurrentYear>
      <CurrentYearMinus1Year>
        <BeginningOfYearBalance>97478751</BeginningOfYearBalance>
        <Contributions>1145759</Contributions>
        <InvestmentEarningsOrLosses>-15493109</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>68151</GrantsOrScholarships>
        <OtherExpenditures>5477657</OtherExpenditures>
        <AdministrativeExpenses>0</AdministrativeExpenses>
        <EndOfYearBalance>77585593</EndOfYearBalance>
      </CurrentYearMinus1Year>
      <BoardDesignatedEOYBalance>0.129</BoardDesignatedEOYBalance>
      <PermanentEndowmentEOYBalance>0.871</PermanentEndowmentEOYBalance>
      <TermEndowmentEOYBalance>0</TermEndowmentEOYBalance>
      <EndowmentsHeldByUnrelatedOrgs>0</EndowmentsHeldByUnrelatedOrgs>
      <EndowmentsHeldByRelatedOrgs>0</EndowmentsHeldByRelatedOrgs>
      <Land>
        <InvestmentCostOrOtherBasis>0</InvestmentCostOrOtherBasis>
        <OtherCostOrOtherBasis>114102</OtherCostOrOtherBasis>
        <BookValue>114102</BookValue>
      </Land>
      <Buildings>
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        <OtherCostOrOtherBasis>71848056</OtherCostOrOtherBasis>
        <Depreciation>41742818</Depreciation>
        <BookValue>30105238</BookValue>
      </Buildings>
      <LeaseholdImprovements>
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        <OtherCostOrOtherBasis>0</OtherCostOrOtherBasis>
        <Depreciation>0</Depreciation>
        <BookValue>0</BookValue>
      </LeaseholdImprovements>
      <Equipment>
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        <OtherCostOrOtherBasis>17424955</OtherCostOrOtherBasis>
        <Depreciation>5310170</Depreciation>
        <BookValue>12114785</BookValue>
      </Equipment>
      <OtherLandBuildings>
        <InvestmentCostOrOtherBasis>0</InvestmentCostOrOtherBasis>
        <OtherCostOrOtherBasis>27281754</OtherCostOrOtherBasis>
        <Depreciation>13738483</Depreciation>
        <BookValue>13543271</BookValue>
      </OtherLandBuildings>
      <TotalOfBookValueLandBuildings>55877396</TotalOfBookValueLandBuildings>
      <FinancialDerivatives>
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        <Explanation>The Museum's collections are used primarily for educational activities, encompassing interpretations, discovery spaces, exhibits, lectures, classes, demonstrations, reference service, or other programs. The Museum also has a historical and archival collection that documents the important and rich history of the institution. The Collections Department provides professional stewardship for artifacts that are temporarily in the custody of the Museum through loans and/or temporary exhibitions. Collections consist of: Natural Sciences - 20,000 items; Cultural/Physical Science - 5,000 items; Artwork - 2,000 items; Institutional History - 3,000 items; Archives - 300 linear feet. Live animals include: Butterfly Garden - approximately 300 butterflies representing 50 species, 120 either individual animals or colonies of live animals throughout the Museum presenting 50 species. Fifty of these are on exhibit and the rest live in the Live Animal Center.</Explanation>
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        <Explanation>The Museum's endowment includes both donor-restricted endowment funds and funds designated by the Board of Trustees to function as endowments ("quasi-endowments"). The endowment consists of 104 individual donor restricted endowment funds and 26 quasi-endowment funds for a variety of purposes including unrestricted general operating support. The relative principal uses of the endowment (as measured by fair value) include: Unrestricted/general - 29%, Exhibit construction and maintenance - 33%, Program support - 13%, Mixed use (primarily exhibits and programs jointly) - 15%, Other (including Library, Access, and Internships) - 9%</Explanation>
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        <Explanation>The Museum's footnote disclosure with respect to FIN 48 is as follows: The Museum is exempt from income taxation under the provisions of Section 501(c)(3) of the Internal Revenue Code and is qualified to receive tax-deductible gifts and bequests under the U.S. tax code. The Museum is subject to tax on income from any business it conducts which is unrelated to its charitable purpose. ASC 740, "Income Taxes", requires that the Museum determine whether each tax position taken is more likely than not to be sustained upon examination by the relevant taxing authority, including resolution of any appeals or litigation. For any tax position meeting the more-likely-than-not threshold, the Museum is to recognize in its financial statements the largest tax benefit that has a greater than fifty percent likelihood of being realized upon final settlement. The Museum adopted the pertinent provisions of ASC 740 on July 1, 2009 and has determined that there was no effect on the financial statements resulting from the adoption of this standard. The Museum is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. The Museum believes it is no longer subject to income tax examinations for years prior to 2007.</Explanation>
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      <Form990ScheduleJPartII>
        <NamePerson>Jonathan R Burke</NamePerson>
        <BaseCompensationFilingOrg>157199</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
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      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>Christine Cunningham</NamePerson>
        <BaseCompensationFilingOrg>157082</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
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        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>129</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>7918</DeferredCompFilingOrg>
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        <NontaxableBenefitsFilingOrg>3396</NontaxableBenefitsFilingOrg>
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        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
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      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>John T Slakey</NamePerson>
        <BaseCompensationFilingOrg>152365</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>301</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
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        <NontaxableBenefitsFilingOrg>11634</NontaxableBenefitsFilingOrg>
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        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>Cynthia G Mackey</NamePerson>
        <BaseCompensationFilingOrg>148406</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
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        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
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        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
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      <Form990ScheduleJPartIII>
        <Identifier>SchJ_P01_S00_L01a</Identifier>
        <ReturnReference>Schedule J, Part I, Line 1a</ReturnReference>
        <Explanation>The Museum provides to its President and Director two forms of compensation not available to other employees. Due to the significant amount of travel undertaken by the President and Director on behalf of the Museum, travel costs for his wife are sometimes provided in cases where the travel is lengthy or the nature/purpose of a trip is such that accompaniment by a spouse is expected or customary. Amounts provided under this arrangement are reported on Form W-2 as appropriate. The Museum also provides college tuition, room, and board for the President and Director's children, grossing up the payments to offset the related tax obligations. These payments are included in Column (iii) Other reportable compensation.</Explanation>
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    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="R000010" softwareId="09000073" softwareVersion="v1.00">
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NameBusiness>
            <BusinessNameLine1>Verizon</BusinessNameLine1>
          </NameBusiness>
        </NameOfInterestedPerson>
        <Relationship>Museum Trustee Sandra Moose is on Verizon's Board of Directors</Relationship>
        <AmountOfTransaction>101271</AmountOfTransaction>
        <DescriptionOfTransaction>Payment for phone service</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
    </IRS990ScheduleL>
    <IRS990ScheduleM documentId="R000011" softwareId="09000073" softwareVersion="v1.00">
      <SecuritiesPubliclyTraded>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>51</NumberOfContributions>
        <NoncashContribsRptdF990>1367903</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>Market (hi/lo)</MethodOfDeterminingRevenues>
      </SecuritiesPubliclyTraded>
      <ScientificSpecimens>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>5</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>n/a</MethodOfDeterminingRevenues>
      </ScientificSpecimens>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>Software</Description>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>1247095</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>List price</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>Audio-tour devices</Description>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>146000</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>Market, adjusted for use</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>Educational materials</Description>
        <NumberOfContributions>2</NumberOfContributions>
        <NoncashContribsRptdF990>3481</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>List price</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>Miscellaneous equipment</Description>
        <NumberOfContributions>3</NumberOfContributions>
        <NoncashContribsRptdF990>23490</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>List price</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <NumberOf8283Received>0</NumberOf8283Received>
      <AnyPropertyThatMustBeHeld>0</AnyPropertyThatMustBeHeld>
      <ReviewProcessUnusualNCGifts>1</ReviewProcessUnusualNCGifts>
      <ThirdPartiesUsed>0</ThirdPartiesUsed>
      <Form990ScheduleMPartII>
        <Identifier>SchM_P01_S00_L00</Identifier>
        <ReturnReference>Schedule M, Part I</ReturnReference>
        <Explanation>In all instances in this Schedule, figures in Column (b) represent number of contributions, even where a contribution may include multiple items. The software contribution noted on line 25 was a single donation including multiple licenses for multiple products.</Explanation>
      </Form990ScheduleMPartII>
      <Form990ScheduleMPartII>
        <Identifier>SchM_P01_S00_L33</Identifier>
        <ReturnReference>Schedule M, Part I, Line 33</ReturnReference>
        <Explanation>Lines for which Column(a) is checked but (c) is zero represent donations to the Museum's collections of items of nominal value.</Explanation>
      </Form990ScheduleMPartII>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="R000012" softwareId="09000073" softwareVersion="v1.00">
      <GeneralExplanation>
        <Identifier>F990_P06_S0B_L11</Identifier>
        <ReturnReference>Form 990, Part VI, Section B, Line 11</ReturnReference>
        <Explanation>The Museum's Form 990 is prepared by the staff of the Accounting Department. It is then reviewed by the CFO and presented to the Audit Committee of the Museum's Board for further review. After the Audit Committee review, the final version of Form 990 is provided to all members of the Museum's Board before the form is filed.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>F990_P06_S0B_L12c</Identifier>
        <ReturnReference>Form 990, Part VI, Section B, Line 12c</ReturnReference>
        <Explanation>Upon election/hiring, and annually thereafter, all Museum Trustees, Overseers (an advisory, but non-governing body), and Key Employees are required to fill out a detailed Conflict of Interest form which solicits detailed information about associations with companies, organizations, and each other which may represent a conflict of interest with respect to the Museum. The forms are reviewed at least annually by both the CFO and staff of the Museum's Accounting department to identify any reported conflicts which may require disclosure and/or further follow-up. With respect to business relationships with companies associated with Trustees or Key Employees, it is the Museum's policy to subject such companies to the same procurement policies, procedures, and requirements as other, nonrelated, firms.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>F990_P06_S0B_L15</Identifier>
        <ReturnReference>Form 990, Part VI, Section B, Line 15</ReturnReference>
        <Explanation>The Compensation Committee of the Museum's Board meets twice yearly, once in spring and once in the late summer or early fall. The first meeting is focused on establishing a recommendation to the Finance Committee that budgets for the upcoming fiscal year's museum-wide merit increase pool. The second meeting is focused on the review of the performance of Key Employees and other senior leadership staff for the prior year and to approve the recommendations of the President/Director for any salary increases. In addition, the Committee reviews the performance and compensation of the President/Director and recommends any adjustment to compensation if warranted. In order to do this in a fully knowledgeable manner, the Committee annually reviews information obtained by the Vice President of Human Resources though a variety of resources. These resources include an outside survey group used to benchmark each of the senior management positions including the President and Director against local non-profit organizations that are of a similar size. In addition, the Museum uses public resources such as Guidestar to access salaries of key people in Museums located in metropolitan areas. Finally, the Museum participates in and receives information from local and regional salary surveys of other Museums in New England. This process gives a clear picture of local, regional and national salary levels for its senior management. The Compensation Committee reviews this information in addition to the history of compensation increases, overall performance of the individual and of the Museum prior to approving or making recommendations for compensation increases.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>F990_P06_S0C_L19</Identifier>
        <ReturnReference>Form 990, Part VI, Section C, Line 19</ReturnReference>
        <Explanation>The Museum's financial statements, Form 990, and other key documents are available in either hard copy or electronically upon request. Form 990 is also available through publicly accessible websites such as Guidestar.org.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>SchG_P01_S00_L02b</Identifier>
        <ReturnReference>Schedule G, Part I, Line 2b</ReturnReference>
        <Explanation>The Museum's use of external fundraisers may, in any given year, consist of a) general fundraising counsel, whose work is generally too integrated into the Museum's overall Advancement function to have specific "gross receipts" amounts specifically assigned; b) direct-mail companies, whose work ranges from simple large-scale mailing of materials developed and produced by the Museum itself to a more direct involvement in the design and creation of the solicitation materials; and c) telemarketers. In cases such as direct mail where costs other than the fundraising services are incurred (such as postage, printing, etc.), the company's invoicing is in sufficient detail to allow the Museum to track and code those expenses separately from the amounts reported as "professional fundraising fees" on From 990, Part IX, Line 11e. For the companies listed in Schedule G, those additional expenses totaled $73,397. All agreements with outside fundraisers provide for invoicing of the Museum based on solicitations made, rather than withholding of amounts from funds raised. No outside fundraiser has custody of any funds raised.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>SchL_P04_S00_L00</Identifier>
        <ReturnReference>Schedule L, Part IV</ReturnReference>
        <Explanation>With respect to business relationships with companies associated with Trustees or Key Employees, it is the Museum's policy to subject such companies to the same procurement policies, procedures, and requirements as other, nonrelated, firms.</Explanation>
      </GeneralExplanation>
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