The Nature and Properties of Soils: a College Text of Edaphology

THE various text-books on soil science that have been produced by Prof. Lyon and his associates at Cornell University overlap one another to a certain extent. Much of the present volume will also be found within the pages of "Soils: their Properties and Management," by Profs. Lyon, Fippen, and Buckman, but the book as a whole marks a definite advance on the earlier ones, and further establishes the prominent position occupied by the Cornell school in soil investigations. The Nature and Properties of Soils: a College Text of Edaphology. By Prof. T. Lyttleton Lyon Prof. Harry O. Buckman. (Agricultural Science Series.) Pp. v+588. (New York: The Macmillan Co.; London: Macmillan and Co., Ltd., 1922.) 15s. net.