Plant Membranes: a Biophysical Approach to Structure, Development and Senescence. By Y. Y. Leshem, with additional contributions by R. L. Shewfelt, C. M. Willmer and O. Pantoja. Methods in Plant Biochemistry (Series Eds. P. M. Dey and J. B. Harborne); Vol. 7: Terpenoids. Ed. by B. V. Charlwood and D. V. Banthorpe. CHCD Dictionary of Natural Products on CD-ROM. Plant Molecular Systematics. By D. J. Crawford. Physiology - Breeding of Winter Cereals for Stressed Mediterranean Environments. (Physiologie - Sélection des céréales d'hiver en conditions méditerranéennes). Ed. by E. Acevedo, A. P. Conesa, P. Monneveux and J. P. Srivastava. Plant Genetic Manipulation for Crop Protection. Ed. A. M. R. Gatehouse, V. A. Hilder and D. Boulter. In vitro Culture of Trees. By J. M. Bonga and P. von Aderkas. Flechten als Bioindikatoren. Integriertes biologisches Meβsystem der Luftverschmutzung für das Schweizer Mittelland. By Rolf Herzig and Martin Urech. Evolution and Function of Heterostyly. Ed. by S. C. H. Barrett. Wild Plants of Glasgow. By J. H. Dickson.