“ MITCHELL, SILAS WEIR (1830–⁠) , American physician and author, son of a Philadelphia doctor, John Kearsley Mitchell (1798–1858) , was born in Philadelphia on the 15th of February 1830. He studied at the university of Pennsylvania in that city, and received the degree of M.D. at Jefferson Medical College in 1850. During the Civil War he had charge of nervous injuries and maladies at Turner’s Lane Hospital, Philadelphia, and at the close of the war became a specialist in nervous diseases. ”