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Francis Whittier Pennell biographies of botanists, circa 1924-1952
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]