REVIEWS

Book reviewed in this article:
Comparative physiology of the nervous control of muscular contraction. By G raham H oyle , D.S c
Parthenogenesis and Polyploidy in Mammalian Development. By R. A. B eatty (Cambridge Monographs in Experimental Biology)
Introduction to Bacterial Physiology. By C. E. C lifton.
The Origin of Life on the Earth. By A. I. O parin. Third revised and enlarged edition. Translated from the Russian by A nn S ynge.
Principles of Immunology. By J ohn E. C ushing and D an H. C ampbell. >
Common Diseases of Vegetables in South Africa. By V incent A. W ager.
Proceedings of the Third British Weed Control Conference , 1956
The Biological Action of Growth Substances. Symposia of the Society for Experimental Biology
The U.C. System for Producing Healthy Container-Grown Plants. Edited by K. F. B aker.
Control of the Plant Environment. Proceedings of the University of Nottingham Fourth Easter School in Agricultural Science. 1957. Ed. J. P. H udson.
Magnesium, the Fifth Major Plant Nutrient. By A. J acob. Translated by Dr Norman Walker