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      <NetIncomeFromFundraisingEvents>
        <TotalRevenueColumn>38083</TotalRevenueColumn>
        <ExclusionAmount>38083</ExclusionAmount>
      </NetIncomeFromFundraisingEvents>
      <GrossSalesOfInventory>69218</GrossSalesOfInventory>
      <CostOfGoodsSold>22011</CostOfGoodsSold>
      <NetIncomeOrLoss>
        <TotalRevenueColumn>47207</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>47207</RelatedOrExemptFunctionIncome>
      </NetIncomeOrLoss>
      <OtherRevenueMisc>
        <Description>MISCELLANEOUS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>29128</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>29128</RelatedOrExemptFunctionIncome>
      </OtherRevenueMisc>
      <TotalOtherRevenue>29128</TotalOtherRevenue>
      <TotalRevenue>
        <TotalRevenueColumn>590343</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>230964</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>0</UnrelatedBusinessRevenue>
        <ExclusionAmount>141448</ExclusionAmount>
      </TotalRevenue>
      <CompCurrentOfficersDirectors>
        <Total>131577</Total>
        <ProgramServices>14606</ProgramServices>
        <ManagementAndGeneral>89000</ManagementAndGeneral>
        <Fundraising>27971</Fundraising>
      </CompCurrentOfficersDirectors>
      <OtherSalariesAndWages>
        <Total>483476</Total>
        <ProgramServices>326501</ProgramServices>
        <ManagementAndGeneral>58851</ManagementAndGeneral>
        <Fundraising>98124</Fundraising>
      </OtherSalariesAndWages>
      <PensionPlanContributions>
        <Total>23933</Total>
        <ProgramServices>15822</ProgramServices>
        <ManagementAndGeneral>2392</ManagementAndGeneral>
        <Fundraising>5719</Fundraising>
      </PensionPlanContributions>
      <OtherEmployeeBenefits>
        <Total>41727</Total>
        <ProgramServices>27458</ProgramServices>
        <ManagementAndGeneral>5897</ManagementAndGeneral>
        <Fundraising>8372</Fundraising>
      </OtherEmployeeBenefits>
      <PayrollTaxes>
        <Total>58293</Total>
        <ProgramServices>32392</ProgramServices>
        <ManagementAndGeneral>14202</ManagementAndGeneral>
        <Fundraising>11699</Fundraising>
      </PayrollTaxes>
      <FeesForServicesManagement>
        <Total>73164</Total>
        <ProgramServices>42930</ProgramServices>
        <ManagementAndGeneral>21766</ManagementAndGeneral>
        <Fundraising>8468</Fundraising>
      </FeesForServicesManagement>
      <FeesForServicesLegal>
        <Total>16728</Total>
        <ManagementAndGeneral>16728</ManagementAndGeneral>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
        <Total>16500</Total>
        <ManagementAndGeneral>16500</ManagementAndGeneral>
      </FeesForServicesAccounting>
      <FeesForServicesInvstMgmntFees>
        <Total>19102</Total>
        <ManagementAndGeneral>19102</ManagementAndGeneral>
      </FeesForServicesInvstMgmntFees>
      <Advertising>
        <Total>45187</Total>
        <ProgramServices>37896</ProgramServices>
        <ManagementAndGeneral>2527</ManagementAndGeneral>
        <Fundraising>4764</Fundraising>
      </Advertising>
      <OfficeExpenses>
        <Total>36456</Total>
        <ProgramServices>15749</ProgramServices>
        <ManagementAndGeneral>9889</ManagementAndGeneral>
        <Fundraising>10818</Fundraising>
      </OfficeExpenses>
      <InformationTechnology>
        <Total>19335</Total>
        <ProgramServices>12624</ProgramServices>
        <ManagementAndGeneral>1161</ManagementAndGeneral>
        <Fundraising>5550</Fundraising>
      </InformationTechnology>
      <Occupancy>
        <Total>118737</Total>
        <ProgramServices>108312</ProgramServices>
        <ManagementAndGeneral>7518</ManagementAndGeneral>
        <Fundraising>2907</Fundraising>
      </Occupancy>
      <Travel>
        <Total>7511</Total>
        <ProgramServices>2490</ProgramServices>
        <ManagementAndGeneral>907</ManagementAndGeneral>
        <Fundraising>4114</Fundraising>
      </Travel>
      <ConferencesMeetings>
        <Total>1637</Total>
        <ProgramServices>1142</ProgramServices>
        <ManagementAndGeneral>75</ManagementAndGeneral>
        <Fundraising>420</Fundraising>
      </ConferencesMeetings>
      <Interest>
        <Total>5538</Total>
        <ProgramServices>1298</ProgramServices>
        <ManagementAndGeneral>3203</ManagementAndGeneral>
        <Fundraising>1037</Fundraising>
      </Interest>
      <DepreciationDepletion>
        <Total>158081</Total>
        <ProgramServices>118561</ProgramServices>
        <ManagementAndGeneral>39520</ManagementAndGeneral>
      </DepreciationDepletion>
      <Insurance>
        <Total>21165</Total>
        <ProgramServices>17566</ProgramServices>
        <ManagementAndGeneral>2728</ManagementAndGeneral>
        <Fundraising>871</Fundraising>
      </Insurance>
      <OtherExpenses>
        <Description>SCIENCE CENTER PLANNING</Description>
        <Total>106272</Total>
        <ProgramServices>106272</ProgramServices>
      </OtherExpenses>
      <OtherExpenses>
        <Description>EQUIPMENT EXPENSE</Description>
        <Total>18135</Total>
        <ProgramServices>15049</ProgramServices>
        <ManagementAndGeneral>617</ManagementAndGeneral>
        <Fundraising>2469</Fundraising>
      </OtherExpenses>
      <OtherExpenses>
        <Description>PROGRAM SERVICE COLLECT</Description>
        <Total>15067</Total>
        <ProgramServices>15067</ProgramServices>
      </OtherExpenses>
      <OtherExpenses>
        <Description>PROGRAM SERVICES OTHER</Description>
        <Total>8533</Total>
        <ProgramServices>8533</ProgramServices>
      </OtherExpenses>
      <OtherExpenses>
        <Description>PROGRAM SERVICE EXHIBIT</Description>
        <Total>5498</Total>
        <ProgramServices>5498</ProgramServices>
      </OtherExpenses>
      <AllOtherExpenses>
        <Total>548</Total>
        <ManagementAndGeneral>548</ManagementAndGeneral>
      </AllOtherExpenses>
      <TotalFunctionalExpenses>
        <Total>1432200</Total>
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        <ManagementAndGeneral>313131</ManagementAndGeneral>
        <Fundraising>193303</Fundraising>
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        <EOY>200</EOY>
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      <SavingsAndTempCashInvestments>
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        <EOY>74516</EOY>
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        <EOY>8769</EOY>
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        <EOY>788169</EOY>
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        <EOY>10037</EOY>
      </InventoriesForSaleOrUse>
      <PrepaidExpensesDeferredCharges>
        <BOY>3828</BOY>
        <EOY>10042</EOY>
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      <LandBuildingsEquipmentBasis>4162421</LandBuildingsEquipmentBasis>
      <LandBldgEquipmentAccumDeprec>2395999</LandBldgEquipmentAccumDeprec>
      <LandBuildingsEquipmentBasisNet>
        <BOY>1912099</BOY>
        <EOY>1766422</EOY>
      </LandBuildingsEquipmentBasisNet>
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        <BOY>2025907</BOY>
        <EOY>1653596</EOY>
      </InvestmentsPubTradedSecurities>
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        <EOY>516882</EOY>
      </InvestmentsOtherSecurities>
      <InvestmentsProgramRelated>
        <BOY>1</BOY>
        <EOY>1</EOY>
      </InvestmentsProgramRelated>
      <TotalAssets>
        <BOY>5526799</BOY>
        <EOY>4828634</EOY>
      </TotalAssets>
      <AccountsPayableAccruedExpenses>
        <BOY>65326</BOY>
        <EOY>89283</EOY>
      </AccountsPayableAccruedExpenses>
      <DeferredRevenue>
        <BOY>16859</BOY>
        <EOY>34652</EOY>
      </DeferredRevenue>
      <TotalLiabilities>
        <BOY>82185</BOY>
        <EOY>123935</EOY>
      </TotalLiabilities>
      <FollowSFAS117>X</FollowSFAS117>
      <UnrestrictedNetAssets>
        <BOY>3526253</BOY>
        <EOY>2736193</EOY>
      </UnrestrictedNetAssets>
      <TemporarilyRestrictedNetAssets>
        <BOY>392599</BOY>
        <EOY>442744</EOY>
      </TemporarilyRestrictedNetAssets>
      <PermanentlyRestrictedNetAssets>
        <BOY>1525762</BOY>
        <EOY>1525762</EOY>
      </PermanentlyRestrictedNetAssets>
      <TotalNetAssetsFundBalances>
        <BOY>5444614</BOY>
        <EOY>4704699</EOY>
      </TotalNetAssetsFundBalances>
      <TotalLiabNetAssetsFundBalances>
        <BOY>5526799</BOY>
        <EOY>4828634</EOY>
      </TotalLiabNetAssetsFundBalances>
      <InfoInScheduleOPartXI>X</InfoInScheduleOPartXI>
      <ReconcilationRevenueExpenses>-841857</ReconcilationRevenueExpenses>
      <ReconcilationOtherChanges>101942</ReconcilationOtherChanges>
      <InfoInScheduleOPartXII>X</InfoInScheduleOPartXII>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>0</AccountantCompileOrReview>
      <FSAudited>1</FSAudited>
      <AuditCommittee>1</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>0</FederalGrantAuditRequired>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg170b1Avi>X</PubliclySupportedOrg170b1Avi>
      <GiftsGrantsContribReceived170>
        <CurrentTaxYearMinus4Years>631990</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>616346</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>1070628</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>1066701</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>217931</CurrentTaxYear>
        <Total>3603596</Total>
      </GiftsGrantsContribReceived170>
      <Total170>
        <CurrentTaxYearMinus4Years>631990</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>616346</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>1070628</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>1066701</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>217931</CurrentTaxYear>
        <Total>3603596</Total>
      </Total170>
      <AmountsSubstContributorsTotal>1823458</AmountsSubstContributorsTotal>
      <PublicSupportTotal170>1780138</PublicSupportTotal170>
      <GrossInvestmentIncome170>
        <CurrentTaxYearMinus4Years>168007</CurrentTaxYearMinus4Years>
        <CurrentTaxYearMinus3Years>138669</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>100370</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>66499</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>45470</CurrentTaxYear>
        <Total>519015</Total>
      </GrossInvestmentIncome170>
      <TotalSupport>4122611</TotalSupport>
      <GrossReceiptsFromAdmissionsEtc>1395341</GrossReceiptsFromAdmissionsEtc>
      <PublicSupportPertcentage170>0.43180</PublicSupportPertcentage170>
      <PublicSupportPertcentPriorYear>0.46730</PublicSupportPertcentPriorYear>
      <ThirtyThreePercntTestsCY170>X</ThirtyThreePercntTestsCY170>
    </IRS990ScheduleA>
    <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>
      </ContributorInfo>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CollectUsedForPublicExhibition>X</CollectUsedForPublicExhibition>
      <CollectUsedForScholarResearch>X</CollectUsedForScholarResearch>
      <CollectUsedForPreservation>X</CollectUsedForPreservation>
      <CollectUsedForLoanOrExchPrgrms>X</CollectUsedForLoanOrExchPrgrms>
      <SolicitedAssetsForSale>0</SolicitedAssetsForSale>
      <CurrentYear>
        <BeginningOfYearBalance>1525762</BeginningOfYearBalance>
        <EndOfYearBalance>1525762</EndOfYearBalance>
      </CurrentYear>
      <CurrentYearMinus1Year>
        <BeginningOfYearBalance>1059762</BeginningOfYearBalance>
        <Contributions>466000</Contributions>
        <EndOfYearBalance>1525762</EndOfYearBalance>
      </CurrentYearMinus1Year>
      <CurrentYearMinus2Years>
        <BeginningOfYearBalance>759762</BeginningOfYearBalance>
        <Contributions>300000</Contributions>
        <EndOfYearBalance>1059762</EndOfYearBalance>
      </CurrentYearMinus2Years>
      <PermanentEndowmentEOYBalance>1.00000</PermanentEndowmentEOYBalance>
      <EndowmentsHeldByUnrelatedOrgs>1</EndowmentsHeldByUnrelatedOrgs>
      <EndowmentsHeldByRelatedOrgs>0</EndowmentsHeldByRelatedOrgs>
      <Land>
        <InvestmentCostOrOtherBasis>368040</InvestmentCostOrOtherBasis>
        <BookValue>368040</BookValue>
      </Land>
      <Buildings>
        <InvestmentCostOrOtherBasis>2775115</InvestmentCostOrOtherBasis>
        <Depreciation>1634365</Depreciation>
        <BookValue>1140750</BookValue>
      </Buildings>
      <Equipment>
        <InvestmentCostOrOtherBasis>1019266</InvestmentCostOrOtherBasis>
        <Depreciation>761634</Depreciation>
        <BookValue>257632</BookValue>
      </Equipment>
      <TotalOfBookValueLandBuildings>1766422</TotalOfBookValueLandBuildings>
      <OtherSecurities>
        <Description>MONEY MARKET FUNDS</Description>
        <BookValue>516882</BookValue>
        <MethodOfValuation>C</MethodOfValuation>
      </OtherSecurities>
      <TotalOfBookValueSecurities>516882</TotalOfBookValueSecurities>
      <TotalRevenue>590343</TotalRevenue>
      <TotalExpenses>1432200</TotalExpenses>
      <ExcessOrDeficitForYear>-841857</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>101942</NetUnrealizedGLOnInvestments>
      <TotalAdjustments>101942</TotalAdjustments>
      <ExcessOrDeficitPerFS>-739915</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>739344</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>101942</NetUnrealizedGainsInvestments>
      <OtherRevenues>47059</OtherRevenues>
      <RevenueNotRptdF990>149001</RevenueNotRptdF990>
      <RevenueSubtotal>590343</RevenueSubtotal>
      <RevenueNotRptdOnFinStmt>0</RevenueNotRptdOnFinStmt>
      <TotalRevenuePerForm990>590343</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>1479259</TotExpensesEtcAuditedFinclStmt>
      <OtherExpensesIncluded>47059</OtherExpensesIncluded>
      <ExpensesNotRptdF990>47059</ExpensesNotRptdF990>
      <ExpensesSubtotal>1432200</ExpensesSubtotal>
      <ExpensesNotRptdOnFinStmt>0</ExpensesNotRptdOnFinStmt>
      <TotalExpensesPerForm990>1432200</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <ReturnReference>PART III, LINE 1A:</ReturnReference>
        <Explanation>COLLECTIONS THE MUSEUM'S COLLECTIONS ARE MADE UP OF ARTIFACTS OF HISTORICAL, CULTURAL, OR SCIENTIFIC SIGNIFICANCE THAT ARE HELD FOR EDUCATIONAL, RESEARCH, SCIENTIFIC, OR CURATORIAL PURPOSES. EACH OF THE ITEMS IS CATALOGED, PRESERVED, AND CARED FOR, AND ACTIVITIES VERIFYING THEIR EXISTENCE AND ASSESSING THEIR CONDITION ARE PERFORMED CONTINUOUSLY. THE COLLECTIONS ARE SUBJECT TO A POLICY THAT REQUIRES PROCEEDS FROM THEIR SALES TO BE USED FOR THE IMPROVEMENT AND MAINTENANCE OF EXISTING COLLECTIONS. IN ACCORDANCE WITH THE PRACTICE GENERALLY FOLLOWED BY MUSEUMS, THE VALUE OF OBJECTS IN THE COLLECTIONS IS EXCLUDED FROM THE FINANCIAL STATEMENTS; COLLECTIONS ARE REFLECTED IN THE ACCOMPANYING FINANCIAL STATEMENTS AT A NOMINAL VALUE OF $1. SINCE THE MUSEUM'S INCEPTION, SUCH COLLECTIONS WERE ACQUIRED PRIMARILY THROUGH CONTRIBUTIONS. PURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN UNRESTRICTED NET ASSETS IN THE YEAR IN WHICH THE ITEMS ARE ACQUIRED OR AS DECREASES IN TEMPORARILY RESTRICTED NET ASSETS, IF THE ASSETS USED TO PURCHASE THE ITEMS ARE RESTRICTED BY DONORS. CONTRIBUTED COLLECTION ITEMS ARE NOT REFLECTED IN THE FINANCIAL STATEMENTS. PROCEEDS FROM DEACCESSIONS OR INSURANCE RECOVERIES ARE REFLECTED AS INCREASES IN NET ASSETS. DURING 2010 AND 2009, THE MUSEUM SOLD COLLECTION ITEMS FOR $0 AND $42,913, RESPECTIVELY. IN ACCORDANCE WITH THE MUSEUM'S POLICY, THE PROCEEDS WERE DEPOSITED IN TEMPORARILY RESTRICTED NET ASSETS TO BE USED EXCLUSIVELY FOR THE IMPROVEMENT AND MAINTENANCE OF EXISTING COLLECTIONS.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF INTENDED USE OF ENDOWMENT FUNDS:</Identifier>
        <ReturnReference>PART V, LINE 4:</ReturnReference>
        <Explanation>INCOME FROM ENDOWMENT FUND IS TO BE USED FOR OPERATING PURPOSES.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF UNCERTAIN TAX POSITIONS UNDER FIN 48:</Identifier>
        <ReturnReference>PART X:</ReturnReference>
        <Explanation>FINANCIAL STATEMENT FOOTNOTE 2, INCOME TAXES, INCLUDES A DISCLOSURE RELATED TO UNCERTAIN TAX POSITIONS UNDER FIN 48. THE TEXT RELATED TO THE MUSEUM'S LIABILITY IS AS FOLLOWS: FOR TAX-EXEMPT ENTITIES, THEIR TAX EXEMPT STATUS ITSELF IS DEEMED TO BE AN UNCERTAINTY, SINCE EVENTS COULD POTENTIALLY OCCUR TO JEOPARDIZE THEIR TAX-EXEMPT STATUS. AS OF DECEMBER 31, 2010 AND 2009, THE MUSEUM DOES NOT HAVE A LIABILITY FOR UNRECOGNIZED TAX BENEFITS. THE MUSEUM FILES EXEMPT ORGANIZATION TAX RETURNS IN THE U.S. FEDERAL JURISDICTION AND NEW YORK STATE. THE MUSEUM IS NO LONGER SUBJECT TO U.S. FEDERAL AND STATE EXAMINATIONS BY TAX AUTHORITIES FOR YEARS BEFORE 2007.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XII, LINE 2D - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>SPECIAL EVENT EXPENSES 25,048. COST OF SALES 22,011.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XIII, LINE 2D - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>SPECIAL EVENT EXPENSES 25,048. COST OF SALES 22,011.</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <EventsInformation>
        <NameOfEvent1>ANNUAL GALA</NameOfEvent1>
        <GrossReceiptsEvent1>63130</GrossReceiptsEvent1>
        <GrossRevenueEvent1>63130</GrossRevenueEvent1>
        <FoodAndBeverageEvent1>10075</FoodAndBeverageEvent1>
        <EntertainmentEvent1>1000</EntertainmentEvent1>
        <OtherDirectExpensesEvent1>13972</OtherDirectExpensesEvent1>
        <GrossReceiptsTotal>63130</GrossReceiptsTotal>
        <GrossRevenueTotalEvents>63130</GrossRevenueTotalEvents>
        <FoodAndBeverageTotalEvents>10075</FoodAndBeverageTotalEvents>
        <EntertainmentTotalEvents>1000</EntertainmentTotalEvents>
        <OtherDirectExpensesTotalEvents>13972</OtherDirectExpensesTotalEvents>
        <DirectExpenseSummaryEvents>25047</DirectExpenseSummaryEvents>
        <NetIncomeSummary>38083</NetIncomeSummary>
      </EventsInformation>
    </IRS990ScheduleG>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <HistoricalArtifacts>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>19</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>MUSEUM DOES NOT RECOGNIZ</MethodOfDeterminingRevenues>
      </HistoricalArtifacts>
      <AnyPropertyThatMustBeHeld>0</AnyPropertyThatMustBeHeld>
      <ReviewProcessUnusualNCGifts>1</ReviewProcessUnusualNCGifts>
      <ThirdPartiesUsed>1</ThirdPartiesUsed>
      <Form990ScheduleMPartII>
        <Identifier>THIRD PARTY USE:</Identifier>
        <ReturnReference>PART I, LINE 32B:</ReturnReference>
        <Explanation>THE MUSEUM HIRED AN UNRELATED AUCTION HOUSE TO SELL PREVIOUSLY ACCESSIONED ITEMS THAT DO NOT FIT THE ORGANIZATION'S MISSION OF INSPIRING A SENSE OF WONDER ABOUT EXTRAORDINARY SCIENTIFIC AND TECHNOLOGICAL DEVELOPMENTS.</Explanation>
      </Form990ScheduleMPartII>
      <Form990ScheduleMPartII>
        <Identifier>NON REPORTING OF REVENUE:</Identifier>
        <ReturnReference>PART I, LINE 33:</ReturnReference>
        <Explanation>THE MUSEUM DOES NOT VALUE THEIR HISTORICAL ARTIFACTS AND THEREFORE DOES NOT COUNT THEM AS REVENUE.</Explanation>
      </Form990ScheduleMPartII>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION A, LINE 6</Identifier>
        <Explanation>THE MUSEUM HAS DUES PAYING MEMBERS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION A, LINE 7A</Identifier>
        <Explanation>TRUSTEES ARE THE ONLY VOTING MEMBERS OF THE ASSOCIATION.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART VI, SECTION B, LINE 11</Identifier>
        <Explanation>THE DRAFT 990 IS FIRST REVIEWED IN DETAIL BY THE MUSEUM'S DIRECTOR OF FINANCE AND THE EXECUTIVE DIRECTOR. ANY CHANGES, COMMENTS AND QUESTIONS ARE REVIEWED WITH THE TAX PREPARER. A REVISED DRAFT IS COMPLETED AND FORWARDED TO THE FINANCE COMMITTEE, COMPRISED OF MEMBERS OF THE GOVERNING BODY, FOR THEIR APPROVAL AND SUBMISSION TO THE INTERNAL REVENUE SERVICE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>TRUSTEES SIGN A CONFLICT OF INTEREST POLICY YEARLY AND PROVIDE A SUMMARY OF ALL DISCLOSED CONFLICTS TO THE BOARD OF TRUSTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15</ReturnReference>
        <Explanation>COMPARISON TO 2 INDUSTRY SALARY GUIDES AND THEN APPROVED BY FINANCE AND EXECUTIVE COMMITTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>AVAILABLE UPON REQUEST AND CAN ALSO BE ACCESSED AT WWW.GUIDESTAR.ORG</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED GAINS ON INVESTMENTS: 101,942.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART XI, LINE 2C:</ReturnReference>
        <Explanation>NO CHANGE FROM PRIOR YEAR.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART IX, LINE 24A:</ReturnReference>
        <Explanation>ALL LOBBYING EXPENSES ARE REFLECTED IN PART IX, STATEMENT OF FUNCTIONAL EXPENSES, IN THE SCIENCE CENTER PLANNING INCLUDED ON LINE 24A, AS THEY PERTAIN TO THE MUSEUM'S PLANS FOR BUILDING A NEW SCIENCE CENTER.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>