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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 Financial records Remove constraint Form: Financial records Year 1950 to 1999 Remove constraint Year: <span class="from" data-blrl-begin="1950">1950</span> to <span class="to" data-blrl-end="1999">1999</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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Academy of Natural Sciences, Philadelphia Division of Environmental Research records, 1952-1995 (inclusive)

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

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Academy of Natural Sciences, Philadelphia Board of Trustees records, 1976-1989 (bulk) 1925-1990 (inclusive)

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

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Horace G. Richards papers, 1928-1984 (inclusive)

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