Book reviewed in this article:Consumer Science, by Alfred H. Hausrath Jr.The Photographic Process, by Julian Ellis Mack, Assistant Professor of Physics, University of Wisconsin, and Miles J. Martin, Professor of Physics, Milwaukee Extension Center University of Wisconsin.A Workbook and Laboratory Manual in Earth Science (Physiography), by Donald B. Stone, Teacher of Earth Science, Mont Pleasant High School, Schenectady, New York. Paper.Unit Tests in Earth Science, by Donald B. Stone, Teacher of Earth Science, Mont Pleasant High School, Schenectady, N. Y. Paper.Deserts, by Gayle Pickwell, Ph.D. Cloth. Pages xiv+174, 64 illus.Plane Trigonometry, With Tables, by W. T. Stratton, Professor of Mathematics, Kansas State College; R. D. Daugherty, Assistant Professor of Mathematics, Kansas State College. Cloth.Modern‐School Solid Geometry, by Holland R. Smith, Specialist in Mathematics, Public Schools, Springfield, Massachusetts and John R. Clark, The Lincoln School of Teachers College, Columbia University. Cloth, viii+248 pages.First Course in Theory of Numbers, by Harry N. Wright, Associate Professor of Mathematics, The City College, New York. Cloth. Pages vii+108. 14X21.5 cm. 1939. John Wiley and Sons, Inc.Development of the Minkowski Geometry of Numbers, by Harris Hancock, University Station, Charlottesville, Virginia. Cloth.