Title: Correspondence
Subjects: Correspondence, Politics and government, Botanical specimens, Description and travel, Antiquities, Ecology, Identification, Growth (Plants)
Places: New Madrid (Mo.), Mississippi, Florida, Michigan, Isle Royale (Mich.)
People: George Engelmann (1809-1884), Joseph Leidy (1823-1891), Louis Agassiz (1807-1873), William Boott (1805-1886), John M. Bigelow (1804-1878), H. P. Sartwell (1792-1867), Henry Gillman (1833-1915), C. F. Austin (1831-1880), Stephen T. Olney (1812-1878), Asa Gray (1810-1888)