Gradwohl, R. B. H. Vol. I and II, pp. viii plus 2284 plus 127 in index in Vol. II, with 51 color plates and 691 text illustrations. Vol. III, R. B. H. Gradwohl and Pedro Kourf. Parasitology and Tropical Medicine. Pp. viii plus 864, with 7 color plates and 420 text illustrations. C. V. Mosby Co., St. Louis, Mo., 1948. $40.00