The physics of crystals: By Abram F. Joffé, Ph.D., D.Sc., D.Eng., LL.D., Director, Roentgen Institute; Director, Physical Technical Institute. Edited by Leonard B. Loeb, Associate Professor of Physics in the University of California. xi–198 pages, 61 figures, 8vo, cloth. First Edition, New York, McGraw-Hill Book Company, Inc. Price, $3