Book Reviews

Book reviewed in this article: Plane Geometry, by Joseph P. McCormack, Head of the Department of Mathematics in the Theodore Roosevelt High School, New York City. New Analytic Geometry, by Percy F. Smith, Sheffield Scientific School of Yale University, Arthur Sullivan Gale, University of Rochester, and John Have Neelley, Carnegie Institute of Technology. Mathematics in Liberal Education, by Florian Cajori, Professor of the History of Mathematics in the University of California. Elements of Machine design, by James D. Hoffman, M. E., Head of the Department of Practical Mechanics and Director of the Practical Mechanics Laboratories, Purdue University, Lafayette, Indiana and Lynn A Scipio, M.E., Dean of Robert College School of Engineering and Professor of Mechanical Engineering, Robert College, Constantinople, Turkey. Cloth The Early Mathematical Sciences in North and South America, by Florian Cajori, Ph.D., Professor of the History of Mathematics, University of California, Illustrated. Cloth. Old Mother Earth, by Kirtley F. Mother. First Course in Botany, by Raymond J. Pool, Ph.D., University of Nebraska, and Arthur T. Evans, Ph.D., South Dakota State College of Agriculture and Mechanic Arts, with the Editorial Co‐operation of Otis W. Caldwell, Ph.D., Director of the Lincoln Institute, Columbia University. A Laboratory Manual for First Course in Botany, by Arthur T. Evans, Ph.D., Professor of Botany in the South Dakota State College, with Editorial Co‐operation of Otis W. Caldwell, Ph.D., Director of Lincoln Institute. Principles of Plant Physiology, by Oran Raber. A Textbook of General Botany, by Gilbert M. Smith, Stanford University and James B. Overton, Edward M. Gilbert, Rollin H. Denniston, George S. Bryan and Charles E. Allen, University of Wisconsin. Algebra for Secondary Behoof by Stephen Emery and Em E. Jeffs, Erasmus Hall High School, Brooklyn, New York. Educational Biology, by William H. Atwood, Milwaukee State Teachers' College and Elwood D. Heiss, Milwaukee State Teachers College.