Chronopharmacology. Cellular and Biochemical Interactions (Cellular Clocks Series/3), by Prof. Dr. Bjorn Lemmer, Center of Pharmacology, J.W. Goethe-University, Frankfurt am Main, FRG. 1989. 744 pp., $150.00 (US and Canada), $180.00 (All other countries). ISBN 0-8247-8103-1 Published by Marcel Dekker, Inc. New York, USA. Chronobiology and chronomedicine. Basic research and applications. Proceedings of the IVth Annual Meeting of the European Society for Chronobiology, Birmingham, July 1988, by E. Morgan. 1990, 407 pp., soft cover sFr. 79.-ISBN 3-631-42301-2 Published by Verlag Peter Lang, Frankfurt a.M., Bern, New York, Paris. Biological rhythms in clinical practice by J. Ahrendt, J.M. Waterhouse and D.S. Minors 1989. 299 pp.m, hard cover £ 48.-ISBN 0-7236-0961-6