Mediterranean type ecosystems, origin and structure: Francesco di Castri and Harold A. Mooney (Editors). Vol. 7 of J. Jacobs, O.L. Lange, J.S. Olson and W. Weiser (Editors), Ecological Studies. Springer Verlag, Berlin, Heidelberg, New York, N.Y., 1973, 405 pp., 88 figures, DM 78.00