Clinical Aspects and Epidemiology of Haemorrhagic Fever with Renal Syndrome. Analysis of Clinical and Epidemiological Experiences in Hungary, by T. Trencseni, M.D., and B. Keleti, M.D., Chief Advisor in Medicine and Chief Advisor in Infectious Diseases of the Hungarian People's Army. 247 pp., illustrated. Akademiai Kiado, Publishing House of the Hungarian Academy of Sciences, Budapest V. Alkotmany U. 21. 1971. $9.60.

40 Years of Tropical Medicine Research. A History of the Gorgas Memorial Institute of Tropical and Preventive Medicine and the Gorgas Memorial Laboratory in Panama, by Willard H. Wright. xii + 426 pages, illustrated. Gorgas Memorial Institute, 2007 Eye Street, N.W., Washington, D.C. 20006. 1971. $9.50.

Isolation and Maintenance of Parasites in Vivo. Symposia of the British Society for Parasitology, Volume 9, edited by Angela E. R. Taylor, Lister Institute of Preventive Medicine, London, and R. Muller, London School of Hygiene and Tropical Medicine. vii + 158 pages, illustrated. F. A. Davis Company, 1915 Arch Street, Philadelphia, Pa. 19103.