Ag'new, DANIEL HAYES (1818-1892), an American surgeon who was a specialist on diseases of the eye and of women. He was a profound anatomist, and had wonderful skill and ease in operating. Sympathetic and gentle, he was an ideal physician and consultant. He was emeritus professor of surgery, and honorary professor of clinical surgery at the University of Pennsylvania. He became widely known through his treatment of President Garfield's wound. Doctor Agnew wrote Practical Anatomy (1856) and The Principles and Practices of Surgery (1878-1883).