A comprehensive look at the history of the American Industrial Hygiene Association. This landmark book, edited by industrial hygiene pioneers George and Florence Clayton, details the evolution of AIHA and the contributions of its members in the first 50 years. The text is divided into 18 chapters, with a thorough index. Among the topics covered are development of the AIHA Journal and other publications; growth of committees and local sections; evolution and metamorphosis of the annual conference; growth of AIHA''s laboratory accreditation program; and AIHA''s influence in development of other societies. Extensive use of photographs helps bring the past alive.