Title: Correspondence
Subjects: Correspondence, Surveys, Botanical specimens, Cooper Union for the Advancement of Science and Art, American agriculturist, Torrey Botanical Club, Michigan Agricultural College, College of Pharmacy of the City of New York
Places: Mexican-American Border Region
People: J. D. Graham (1799-1865), George Engelmann (1809-1884), William H. Emory (1811-1887), Joseph Henry (1797-1878), John Torrey (1796-1873), George Thurber (1821-1890)