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Zaccheus Collins correspondence, 1805-1827 (inclusive)

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

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Francis Whittier Pennell biographies of botanists, circa 1924-1952

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

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Edward Drinker Cope papers, 1859-1907 (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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E.R. Fenimore Johnson photographs, 1929-1970 (inclusive)

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

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Samuel George Morton papers, 1832-1862 (inclusive)

Held at: Library Company of Philadelphia [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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Constantine Samuel Rafinesque papers, 1818-1977 (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]

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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]