Reviews

Book reviewed in this articles:
The Biology of Frankia atid Actinorhizal Plants . Ed. by C hrista R. S chwintzer and J ohn D. T jepkema .
Seed Dormancy in Grasses. By G. M. S impson .
Plants under Stress. Ed. by H. G. J one s, T. J. F lowers and M. B. J ones .
Plant Resistance to Insects. A Fundamental Approach. By C. M. S mith .
The Vascular Cambium . Edited by M. I qbal