qI Recent Books
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- I, Laboratory Exercises and Problems in General Chemistry. B. Snum H O P ~ ~ NUniversity S, of Illinois, and H A R ~ E YA. NEVILLE, Lehigh University. Revised edition. D. C. Heath & Co., New York City, 1931. 164 pp. 29 Figs. 15 X 23 cm. xii $1.76.
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erences to Hopkins' "General Chemistry" makes the book well adapted for use with that text. The type and arrangement of the material gives the printed page an attractive appearance. C. D. CARPENTER co,.oawr* ulrrvsnsrrY Nsw YORK C I ~ Y
"Laboratory Exercises and Problems in General Chemistry" by Hopkins and Tests in Chemistry. CHARLESE. DULL, Head of Science Department, West Neville is a clearly written guide for stuSide High School, and S ~ p e ~ s of or dent laboratory work. Science for the Junior and Senior High Part I comprises sixty-two experiments Schools, Newark. N. J. Henry Halt most of which duplicate the experiments & Co., Inc., New York City, 1931. 68 of a good beginner's course in a secondary pp. 15 Figs. 19 X 24.75 cm. $0.32. school. The purpose of this paper-back book, Part I1 comprises thirty-eight (63-100) experiments dealing mainly with the in loose-leaf form, is t o furnish a set of metals, the preparation of a few important twenty-eight tests, averaging thirty quessalts, and a brief introduction to the meth- tions each, covering the entire field of ods of qualitative analysis. Five simple chemistry an usually taught in secondary unknowns are given, and finally. Exercise schaols. While the tests follow the seq u a = of topics as presented in the 100 outlines the vrocedure for a "General author's textbook, "Modern Chemistry" Unknown." [reviewed J: CHEM. EDUC., 8, 1901-2 Part 111is entitled Chemical Arithmetic. in which one hundred and fifty problems (Sept., 1931)],they may beused with highare stated involving the following cases: school textbooks. The test questions, I. Percentage Composition; 11. Chemi- which are of the true and false, completion cal Formula from Percentage Composi- and substitution type, may be used as intion; 111. Amount of One Substance Re- structional as well as achievement tests. Each test will be completed by the student, quired to Combine with or Displace a Given Amount of Another Substance; IV. in the majority of cases, in thirty minutes Specific Gravity of Solids and Liquids; and could be checked by the individual V. The Correction of Gas Volumes for pupil in a t least ten minutes. By keeping Temperature. Pressure, and Water Vapor; his individual tests, the pupil could deterVI. Gram-Molecular Volume; VII. Normal Solutions. The book also contains a list of the apparatus and chemicals pupil and teacher. EDWINL. FREDERICK needed by the student, an appendix listing F O B E PABK ~ I HZOH SCXOOL important units and constants, and a page B A W r M O a s , M*snANo of "First-Aid Instructians." The outstanding feature of the book is Living in a Wodd of Science. Water and Air, Energy and Power; Heat the fact that the work outlined is within and Health. MORRISMEISTER,New beginning stuthe cavacitv . . of an average York Training School for Teachers, Coldent to complete, yet the exercises are exlege of the City of New York, and Editensive enough t o lay a satisfactory tor. The Scimre Classroom. Charles foundation for later work. Frequent ref397
