Clinics in Gastroenterology, Volume 7, Number 1. Intestinal Parasites, edited by P. D. Marsden. vii + 243 pages, illustrated. W. B. Saunders Co., Ltd., 1 St. Anne's Road, Eastbourne, East Sussex BN21 3UN, England. 1978. £8.25.

Immunity to Blood Parasites of Animals and Man, edited by L. H. Miller, J. A. Pino, and J. J. McKelvey, Jr. (Advances in Experimental Medicine and Biology, Volume 93.) x + 321 pages, illustrated. Plenum Publishing Corporation, 227 West 17th Street, New York, N.Y. 10011. 1977. $29.50.

Mathematical Techniques for Biology and Medicine, by W. Simon. xii + 291 pages, illustrated. The MIT Press, 28 Carleton Street, Cambridge, Massachusetts 02142. 1978. $9.95 (paperback).

World Geography of Human Diseases, A, edited by G. M. Howe. xxvii + 621 pages, illustrated. Academic Press Inc. (London), Ltd., 24–28 Oval Road, London NW1 7DX. $46.90; £24.00.