Book reviewed in this article:The Arithmetic Mean as Approximately the Most Probable Value a Posteriori Under the Gaussian Probability Law, by E. L. Dodd, University of Texas.The Common Law and the Case Method in American University Law Schools, a Report to the Carnegie Foundation for the Advancement of Teaching, by Professor Dr. Josef Radlich, University of Vienna.Annual Report of the Board of Regeants of the Smithsonian Institution, for 1913.Optical Projection, by Simon Henry Gate and Henry Phelps Gage, Cornell University.An Introduction to Laboratory Physics, by Lucius Turtle, Jefferson Medical College, Philadelphia, Pa.Vocational Mathematics, by William H. Dooley, Principal of Technical High School, Fall Riper, Mass.The Elements of Geometry, by W. N. Bush, Principal of the Polytechnic High School, San Francisco, and J. B. Clarke, Department of Mathematics of the same school.General Physics for College Students, J. A. Culler, Miami University.A Review of Algebra, by R. H. Rivenburg, Head of the Department of Mathematics, The Peddie Institute, Hightstown, N. J.The Evolution of Sex in Plants, by John M. Coulter.Advanced Theory of Electricity and Magnetism, by Wm. S. Franklin and Barry Macnutt, Lehigh University.Stories of Old Greece and Rome, by Emilie Kip Baker.Text Book on Wireless Telegraphy, by Rupert Stanley, Queen's University, Belfast.“Chemistry of Common Things,” by Raymond B. Brownlee, Robt. W. Fuller, Wm. J. Hancock and Jesse E. Whitsit, all of New York City.Education Through Play, by Henry S. Curtis, Lecturer on Recreation and Other Social Topics.Our Knowledge of the External World as a Field for Scientific Method in Philosophy, by Bertrand Russell, M. A., F. R. S., Lecturer and Late Fellow of Trinity College, Cambridge.The Beginner's Garden Book, by Allen French.Plant Geography, An Introduction To, by M. E. Hardy.The High School, Its Function, Organisation and Administration, by John E. Stout, Cornell College, Iowa.Der Untergang der Welt mid der Erde, by Prof. Dr. M. B. Weinstein.Industrial History of the American People, by J. R. H. Moore.