Reviews

Book reviewed in this article: Principles of Human Genetics. By C urt S tern . Variables Related to Human Breast Cancer. BY V. E lving A nderson , H arold O. G oodman , and S heldon C. R eed . Practical Heredity with Drosophila. BY G ordon H askell . Recent Advances in Human Genetics. Edited by L. S. P enrose with assistance of H elen L ang ‐B rown Readings on Race. Edited by S. M. G arn . Human Races. By S. M. G arn . The Genetical Theory of Natural Selection. Second revised edition. By R. A. FISHER. Human Chromosomal Abnormalities. Edited by W. M. D avidson and D. R obertson SMITH. Medizinische Genetik. Eine Einführung in ihre Grundlagen und Probleme. By W. L enz . Analisi Statistica per Medici e Biologi e Ancdisi del Dosaggio Biologico. By L uigi C avalli ‐S forza . Sequential Medical Trials. By P. A rmitage .