Title: Correspondence
Subjects: Correspondence, Academy of Natural Sciences of Philadelphia
People: George Engelmann (1809-1884), George W. Carpenter (1802-1860), Benjamin Boyer Brown (1809-1863), F. A. Wislizenus (1810-1889), William Gambel (1823-1849), Charles Wright (1811-1885), Samuel George Morton (1799-1851)