REVIEWS

Book reviewed in this article: Hypothesis Prediction and Implications in Biology . By J. J. W. B aker and G. E. A llen . William Bartram. Botanical and Zoological Drawings , 1756–88. Edited with an Introduction and Commentary by J oseph E wan . The Soil Resources of Tropical Africa . Ed. by R. P. Moss. Experimental Physiology . By A rnold D unn and J oseph A rditti . Progress in Phytochemistry , Vol. I. Ed. by L. R einhold and Y. L iwshitz . Physiology of Stomata . By H. M eidner and T. A. M ansfield . Studies in Biology , No. 12. Plant Breeding . By W. J. C. L awrence . Fundamentals of Mycology . By J. H. B urnett . Physiological Plant Pathology . By R. K. S. W ood . Mykologie. Grundriss für Naturwissenschaftler und Mediziner . By E mil M üller and W olfgang L oefeler . The Genus Pythium Pringsheim. Diagnoses (or Descriptions) and Figitres from the Original Papers . By G race M. W aterhouse . Growth and Organization in Plants . By F. C. S teward . Methods for the Measurement of the Primary Production of Grassland . By C. M ilner and R. E lfyn H ughes . Drawings of British Flants . Part XXV. Plantaginaceae, Illecehraceae, Chenopodiaceae . By S tella R oss ‐C raig . Plant Variation and Classification (Fundamentals of Botany Series). By C. R. B ell . Manual of Wayside Plants of Hawaii . By W illis T. P ope .