Book reviewed in this articles: Limnology, 2nd ed. By Paul S. Welch Fundamentals of Limnology, 2nd ed. By Franz Ruttner. Translated by D. G. FREY and F. E. J. FRY. Zoogeography of the Sea. By Sven Ekman. Physiology of Seeds. By W. Crocker and L. V. Barton. Insect Physiology. Edited by K. D. Roeder. Legumes in Agriculture. By R. O. Whyte and H. C. Trumble. Plant Diseases. By F. T. Brooks. Second edition.
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