Book reviewed in this article:Humangenetik. Ein lcurzes Handbuch in fün, Bänden. Edited by P. E. Becker. Stuttgart: Georg Thieme. 1964.Glossary of terms in oficial statistics. English‐French, French‐English. Compiled on behalf of the International Statistical Institute, by J. W. Nixon. Edinburgh and London: Oliver and Boyd Ltd. 1964.Genetics and Metabolism. By R. P. Wagnerand H. K. Mitchell. Second edition, London and New York: Wiley and Sons. 1964.Human Biology. By G. A. Harrison, J. S. Weiner, J. M. Tanner, and N. A. Barnicot. Clarendon Press, Oxford University Press. Pp. 536. 42s.Biocheniistry of Semen and of the Male Reproductive Tract. By ThaddeusMann, F.R.S. London: Methuen and Co. Ltd. New Pork: John Wiley and Sons Inc. 1963.Research in Deafness in Children. Edited by L. Fisch, M. D., D.L.O. Oxford: Blackwell Scientific Publication. 1964.Mechanisms Concerned with Conception. Edited by C. G. Hartman. Pergamon Press. 1963.Genetics. By H. Kalmus. 2nd edition. London: Heinemann Educational Books.