Title: Correspondence
Subjects: Commelinaceae, Compositae, Ephedra, Euphorbiaceae, Fagaceae, Potamogeton, Tradescantia, Convovulaceae, Carex, Heuchera, Verbenaceae, Euphorbia, Correspondence, Opuntia, Botanical specimens, Transportation, Prairies, Pinaceae, Ipomoea, Verbena, Gnetaceae, Cyperaceae, Potamogetonaceae, Saxifregaceae, Biography
Places: Illinois, Texas, Rocky Mountains
People: George Engelmann (1809-1884), William H. Emory (1811-1887), John Charles Frémont (1813-1890), François André Michaux (1770-1855), William Darlington (1782-1863), Joseph Dalton Hooker (1817-1911), Asa Gray (1810-1888), Samuel Barnum Mead (1799-1880), Thomas Nuttall (1786-1859), Josiah Gregg (1806-1850), M. A. Curtis (1808-1872), William Starling Sullivant (1803-1873), Joseph Henry (1797-1878), Daniel Drake (1785-1852), William Oakes (1799-1848), William Boott (1805-1886), Ferdinand Lindheimer (1802-1879), C. S. Rafinesque (1783-1840), Increase Allen Lapham (1811-1875), Charles Wilkins Short (1794-1863), John Leonard Riddell (1807-1867), M. Carey Lea (1823-1897)