Diseases of occupation and vocational hygiene: Edited by George M. Kober, M.D., LL.D., Professor of Hygiene, Georgetown University, Washington, D.C., President of the Section on Hygiene of Occupations, XV International Congress on Hygiene and Demography, Chairman of the Section on Industrial Hygiene of the American Public Health Association (1915), Secretary of the Association of American Physicians, and William C. Hanson, M.D., formerly with the Massachusetts State Board of Health, Pp. 918, 42 figures. Philadelphia: P. Blakiston's Son and Co., 1916