Title: Correspondence
Subjects: Correspondence, Plants, Botanical specimens, Geographical distribution, Catalogs and collections, Analysis, Nymphaea, Climatic factors, Nymphaeaceae
People: Robert Caspary (1818-1887), George Engelmann (1809-1884), George W. Clinton (1807-1885), John A. Paine (1840-1912), Asa Gray (1810-1888), Alexander Braun (1805-1877)