BOOK REVIEWS

Book reviewed in this article: A Course in General Chemistry , including an Introduction to Qualitative Analysis, for use in colleges, by William C. Bray, Professor of Chemistry in the University of California, and Wendell M. Latimer, Professor of Chemistry in the University of California. Principles of General Chemistry , by Stuart R. Brinkley, Associate Professor of Chemistry, Yale University Volumetric Analysis , by G. Fowles, M.Sc., A.I.C., Assistant Master, Latymer Upper School, Mammersmith. Plane Trigonometry , by Cecil A. Ewing, Head of the Mathematics Department in the Tome School, Port Deposit, Maryland. Intelligence: Its Manifestations and Measurement , by Paul L. Boynton, George Peabody College for Teachers Other Worlds , by Edwin Lincoln Moseley, Head of the Department of Biology, Ohio State Normal College. A Textbook of Physics , Vol. I. Mechanics by E. Grimsehl, edited by R. Tomaschek, University of Marburg. Projective Differential Geometry of Curves and Surfaces , by Ernest Preston Lane, Professor of Mathematics in the University of Chicago. The Development of Physical Thought , by Leonard B. Loeb, Professor of Physics, University of California, and Arthur S. Adams, Professor of Mechanics, Colorado School of Mines. Science Problems of Modern Life , Book II, by Ellsworth S. Obourn, Head of the Science Department, John Borroughs School, Clayton, Missouri, and Ellwood D. Heiss, Head of the Science Department, State Teachers College, East Stroudsburgh, Pennsylvania. Introductory Mathematics , by John Wayne Lasley and Edward Tankard Browne, Professors of Mathematics, University of North Carolina. Mathematical Excursions , by Helen Abbot Merrill, Professor of Mathematics, Emeritus, in Wellesley College, Wellesley, Mass. Number the Language of Science , by Tobias Dantzig, Ph.D., Professor of Mathematics, University of Maryland; Lecturer on Mathematical Physics, U. S. Bureau of Standards.