OSLER, William, Canadian educator, born in Tecumseh, Ont., 12 July, 1849. He was educated at Trinity college, Toronto, Toronto school of medicine, and McGill university, where he was graduated as a physician in 1872. He subsequently studied at University college, London, and at Berlin and Vienna. He was professor of the institutes of medicine in McGill university in 18'74-'84, of clinical medicine in the University of Pennsylvania in 1884, Galstonian lecturer in the Royal college of physicians, London, in 1885, and Cartwright lecturer in the College of physicians and surgeons, New York, in 1886. Dr. Osler is physician to various hospitals, and is the author of "Clinical Notes on Small-pox" (Montreal, 1876) ; "Pathological Report, Montreal General Hospital" (1878) ; and "Histology Notes" (1882). He has also written for various medical journals in the United States, Canada, and Great Britain.