Vitamins and Hormones—Advances in Research and Applications, Ed. by R. S. Harris, G. F. Marrian and K. V. Thimann. Vol. XVI, 437 + xi pages, ill. New York, Academic Press, Inc., 1958. $11.60.

Disease and Population Pressure in the Tropics—Two Lectures at University College, Ibadan, Nigeria, by T. H. Davey, visiting Nuffield Professor, 1958. 22 pages. Ibadan, Nigeria, Ibadan University Press, 1958. 2/-.*

The Ecology of Human Disease, by Jacques M. May, M.D., with foreword by Felix Marti-Ibañes, M.D. 327 + xxiv pages with maps. New York, MD Publications, Inc., 1958. $7.50.

Diseases of Laboratory Primates, by Theodore C. Ruch, Ph.D. 600 pages, ill. Philadelphia, W. B. Saunders Co., 1959. $7.50.*

Geographic Ophthalmology, by William John Holmes, M.D., Ed. 293 pages, ill. Springfield, Ill., Chas. C Thomas, 1959. $8.50.*

Medical Education: Annotated Bibliography, 1946–1955, by W.H.O. 391 pages. Geneva, World Health Organization, 1958. £1 15/-, $6.75, Sw. Fr. 20.*

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