PETERS, John Charles, physician, born in New York city, 6 July, 1819. He was educated at Nazareth Hall, Pennsylvania, at the College of physicians and surgeons in New York, and also studied in Berlin and Vienna, receiving his medical degree in 1842. On his return to New York he devoted himself to homoeopathy, but finally changed to the old school of practice, and has endeavored to reconcile the methods of the two schools. He suggested the employment of alcohol in the treatment of consumption, the use of phosphates in medicine, the curative treatment of Bright's disease with corrosive sublimate, and the use of the salts of potassium in true membranous croup. He founded with Dr. Middleton Goldsmith and Dr. Lewis A. Sayre the New York pathological society, of which he has been president. Dr. Peters has also been president of the Medical society of the county of New York, and member of various medical societies. He was the physician and friend of Washington Irving. In 1873 he volunteered to go to the south to examine the cholera, suggested measures by which the plague was stopped, and assisted Dr. Ely McClellan in preparing a "Report on Cholera," which was published by order of congress (Washington, 1873). In 1878 he went to Memphis to aid in arresting the yellowfever scourge. He has edited the "North American Journal of Homoeopathy" and the "Transactions of the Pathological Society" (1873-'6), and, in conjunction with Dr. Alexander S. Wotherspoon, translated Rokitansky's "Pathological Anatomy" (New York, 1849). With Dr. Frederick G. Snelling and others he published "Materia Medica" (1856-'60). In addition to articles in medical journals he is the author of "Diseases of the Brain and Nervous System" (New York, 1852); " Diseases of Women" (1853) ; "Diseases of the Eye" (1854); and " Notes on Asiatic Cholera" (1866); and he assisted Dr. Edmund C. Wendt in his book on "Asiatic Cholera" (1885).