JORDAN, David Starr, naturalist, born in Gainesville, New York, 19 January, 1851. He became instructor in botany at Cornell in 1870, meanwhile also studying at that university, where he was graduated in 1872. Subsequently he settled in Indianapolis, and was graduated at the Indiana medical college in 1875, after lecturing in 1874 on marine botany at the Anderson summer school of natural history at Penikese island, Massachusetts, and on botany and ichthyoloxy at the Harvard school of geology, at Cunberland gap, in 1875. He then became professor of biology at Butler university, and in 1879 was appointed to a similar chair in Indiana university, During 1879-'81 he was a special agent of the United States census for the marine industries of the Pacific coast, and he has also held appointments at various times as assistant to the United States fish commission mid the United States national museum. Mr. Jordan is a member of scientific societies, and has published about 250 papers on North American ichthyology, also a "Manual of the Vertebrates of the Northern Unites States" (Chicago, 1876).