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Start Over Subjects Data Collection ✖Remove constraint Subjects: Data Collection Titles Letter from O.C. Marsh, vice-president and acting president of the National Academy of Sciences, transmitting in obedience to law the report on the scientific surveys of the Territories, made by the National Academy of Sciences ✖Remove constraint Titles: Letter from O.C. Marsh, vice-president and acting president of the National Academy of Sciences, transmitting in obedience to law the report on the scientific surveys of the Territories, made by the National Academy of Sciences Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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  • Letter from O.C. Marsh, vice-president and acting president of the National Academy of Sciences, transmitting in obedience to law the report on the scientific surveys of the Territories, made by the National Academy of Sciences1