BOOK REVIEWS

Book reviewed in this article: M atter , M otion and E lectricity , by Henry De Wolf Smyth, Chairman, Department of Physics, Princeton University , and Charles Wilbur Ufford, Professor of Physics, Allegheny College . G rowing P lants in N utrient S olution or S cientifically C ontrolled G rowth , by Wayne I. Turner and Victor M. Henry. Cloth. T he L iving T houghts of D arwin , by Julian Huxley assisted by James Fisher. Cloth. B iology , by Brother H. Charles, F. S. C, Ph.D. (Charles F. Severin), Professor of Biology at St. Mary's College, Winona, Minn . Learning Activities in Elementary Algebra , by Earl J. Burnett, M.A., Head of Department of Mathematics, Monroe High School, Rochester, N. Y., and Regina Grosswege, M.A. Department of Mathematics, Elvood High School, Elvood, Indiana. Learning Activities in Plane Geometry , by Earl J. Burnett, M.A, Head of Department of Mathematics, Monroe High School, Rochester, N. Y., and William E. Batzler, M.A, Department of Mathematics, Battle Creek High School, Battle Creek, Michigan. The World of Insects , by Carl D. Duncan, Professor of Entomology and Botany, San Jose State College, and Gayle Pickwell, Professor of Zoology, San Jose State College. Cloth. Felix Klein. Elementary Mathematics from an Advanced Standpoint. Geometry . Translated from the third German edition by. E. R. Hedrick, Vice President and Provost, The University of California and C. A.