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Start Over You searched for: Organization Academy of Natural Sciences of Philadelphia. Remove constraint Organization: Academy of Natural Sciences of Philadelphia. Form Photographs Remove constraint Form: Photographs Year 1850 to 1899 Remove constraint Year: <span class="from" data-blrl-begin="1850">1850</span> to <span class="to" data-blrl-end="1899">1899</span>

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President's Office and Administrative Records, 1874-2003, 1939-1993 (bulk) 1874-2003 (inclusive)

Held at: Academy of Natural Sciences, Philadelphia [Contact Us]

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Beatrix Potter collection, 1900-1943 (bulk) 1884-2004 (inclusive)

Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]

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Academy of Natural Sciences, Philadelphia papers on expeditions, 1819-1969 (inclusive)

Held at: Academy of Natural Sciences, Philadelphia [Contact Us]

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J. Percy Moore papers, 1847-1963 (inclusive)

Held at: Academy of Natural Sciences, Philadelphia [Contact Us]

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H. A. Pilsbry papers, 1900-1953 (bulk) 1885-1957 (inclusive)

Held at: Academy of Natural Sciences, Philadelphia [Contact Us]