Title: Correspondence
Subjects: Correspondence, Science
Places: Germany
People: F. H. v. Kittlitz (1799-1874), Lorin Blodget (1823-1901), E. A. Rossmässler (1806-1867), François Vallès, Eduard Kretzschmar (1807-1858), Alexander von Humboldt (1769-1859), J. B. Boussingault (1802-1887)
Time periods: 19th century