Morton Prince, 1854–1929, American physician, b. Boston, M.D. Harvard, 1879. He specialized in neurology and abnormal psychology as a physician in Boston and as a teacher at Tufts (1902–12) and Harvard (1926–28). Founder (1906) and editor of the Journal of Abnormal Psychology, he was a leading investigator of the pathology of mental disorders. Prince also founded (1927) and directed the Harvard Psychological Clinic, where he was succeeded by his assistant Henry A. Murray. His writings include The Dissociation of a Personality (1906), and The Unconscious (1914).