Title: Correspondence
Subjects: Callitriche, Euphorbiaceae, Convovulaceae, Viability, Botanical specimens, Gentianaceae, Euphorbia, Correspondence, Opuntia, Ecology, Gentiana, Vitaceae, Isoetaceae, Seeds, Callitrichaceae, Pinaceae
People: George Engelmann (1809-1884), Elias Durand (1794-1873), A. Kellogg (1813-1887), Augustus Fendler (1813-1883), François André Michaux (1770-1855), S. B. Buckley (1809-1884), Michel Charles Durieu de Maisonneuve (1796-1878), M. S. Bebb (1833-1895), Thomas Nuttall (1786-1859), W. G. Farlow (1844-1919), Edward Tuckerman (1817-1886), Elihu Hall (1822-1882), C. C. Parry (1823-1890), Charles Wright (1811-1885), Ferdinand Lindheimer (1802-1879), Asa Gray (1810-1888), Henry Shaw (1800-1889), Charles Wilkins Short (1794-1863), William Marriott Canby (1831-1904), Henry N. Bolander (1831-1897), Leo Lesquereux (1806-1889)