Ecosystems of the World, Vol. 12A. Hot Deserts and Arid Shrublands: Michael Evenari, Imanuel Noy-Meir and D.W. Goodall (Editors), Elsevier Science Publishers, Amsterdam, 1985, ISBN 0-444-42282-X Vol 12A, x + 365 pp., Dfl. 300.00, U.S. $111.00 (hardback)