This work is the fifth in a series of bulletins on the applications of sociology to various fields of professional practice prepared under the joint sponsorship of the American Sociological Association and the Russell Sage Foundation. Previous bulletins have dealt with applications of sociology in the fields of corrections, mental health, education, and military organization. Dr. Suchman has performed an important service in his clear delineation of the great potential sociology and related disciplines have for sharpening our understanding of the social factors in health and disease, for intelligent planning and mounting of appropriate action programs, and for improving the organizational structure and institutional mechanisms of the health professions themselves.