By Lucius Nicholls, M.D., B.C., B.A. (cantab.) Director Bacteriological and Pasteur Institutes and Director of Division of Nutrition, Ceylon; Lecturer on Nutrition, Ceylon University; late Lecturer on Tropical Medicine, Ceylon Medical College. Pp. 370 with 32 illustrations. Second Edition. Bailliere, Tindall and Cox, London, 1947