EICHWALD, KARL EDUARD VON Russian geologist and physician, was born at Mitau, Courland, on July 4, 1795. He became doctor of medicine and professor of zoology in Kazan in 1823; four years later professor of zoology and comparative anatomy at Vilna; in 1838 professor of zoology, mineralogy and medicine at St. Petersburg; and finally professor of palaeontology in the institute of mines in that city. He trav elled much in the Russian empire. He died at St. Petersburg on Nov. 10, 1876. His published works include Reise auf dem Caspischen Meere and in den Caucasus, 2 vols. (Stuttgart and Tubingen, 1834-1838) ; Die Urwelt Russlands (St. Petersburg, 184o-1845) ; Lethaea Rossica, ou paleontologic de la Russie, 3 vols. (Stuttgart, 1852-1868), with Atlases.