John Murray Carnochan, an American surgeon, born in Savannah, Ga., in 1817. His father, who was a Scotchman, sent him when a boy to Edinburgh. After graduating in the high school and university of that city, he returned to the United States, and entered the office of Dr. Valentine Mott of New York as a student of medicine. After taking his degree, he again visited Europe, and passed several years in attendance upon the clinical lectures of Paris, London, and Edinburgh. In 1847 he commenced the practice of his profession in New York. In 1851 he was appointed surgeon-in-chief of the New York state emigrant hospital. In 1852 he successfully treated a case of elephantiasis Ardbum by ligature of the femoral artery. In the same year he performed the operation of amputating the entire lower jaw. with disarticulation of both condyles. In 1854 he exsected the entire ulna, saving the arm, with its functions unimpaired; and subsequently, in another case, removed the entire radius with equal success. In 1856 he performed for the first time one of the most startling and original operations on record, in ex-secting for neuralgia the entire trunk of the second branch of the fifth pair of nerves, from the infra-orbital foramen, as far as the foramen rotund/am at the base of the skull.
Amputation at the hip joint he has performed several times; once in 1864, after the battle of Spott-sylvania. Among his more recent operations are the ligature of both common carotid arteries in a case of elephantiasis of the head, neck, and face; the ligature of the common carotid on one side, and of the external carotid on the other, for hypertrophy of the tongue; and the tying of the femoral artery for varicose veins of the leg and thigh. He has also been successful in the removal of large ovarian tumors. From 1851 to 1863 Dr. Carnochan was professor of the principles and operations of surgery in the New York medical college, and published his lectures on partial amputations of the foot, lithotomy, and lithothrity, and also a "Treatise on Congenital Dislocations " (New York, 1850), and "Contributions to Operative Surgery" (Philadelphia), He has translated Sedillot's Traite de medecine opera-toire, bandages et appareils, and Karl Rokitan-sky's Handuuch der pathologischen Anatomic From 1870 to 1872 he was health officer of the port of New York.