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treated fully in four of the chapters. Literature references are given in great detail. The physical make-up of the book is excellent. It has been a great pleasure and a privilege t o the mniter to have had the opport>unityof reviewing this splendid treatise. GEO. BLOCKLER.
Abridged Scientific Publications from the Kodak Research Laboratories (Volume XV, 1931-1932). Rochester, E.Y.: Eastman Kodak Company, 1933. This volume contains complete and readily understandable summaries of sixtyone papers which have been published in a variety of journals. The subject matter of the articles varies from the description of technical procedures of interest to commercial photographers to the presentation and discussion of experimental results of importance to theoretical photochemists and physical chemists. The typography and the reproduction of illustrations are excellent. ROBERTLIVINQSTON.
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Introduction to Physical Chemistry. By ALEXANDER FINDLAY. 21 x 14 cm.; vi 492 pp. London: Longmans, Green and Co., 1933. Price 7s. 6d. Any book from the pen of such an experienced and competent writer as Professor Findlay is certain to have a number of outstanding qualities, and the present work is no exception. The author is of the opinion that the historical method of treatment is the one which is most sound educationally and this has been adopted successfully in the book under review; the student will read that Cailletet was an ironmaster and Joule a brewer, and these human touches should lend interest to his studies! All the subjects normally included in an introductory course of physical chemistry are discussed in an up-to-date manner: the activity concept finds frequent reference and the Lewis and Randall symbols are used in connection with the first and second laws of thermodynamics; in the brief treatment of the Nernst heat theorem, however, the German symbols have been used. A few minor errors have been noted, but the only one likely to be misleading is the statement (p. 231) that “In the ammonia equilibrium . . . . the equilibrium constant varies inversely as the square of the pressure.” (The italics are the reviewer’s.) The book, which concludes with an appendix containing some one hundred and fifty numerical problems, is worthy of consideration by all teachers of physical chemistry. S. GLASSTONE. Laboratory Experiments in Organic Chemistry. By ADAMSAND JOHNSON. Revised edition. xiii 363 pp. New York: The MacMillanCompany, 1933. Price: $1.90. This is a new edition of the authors’ laboratory manual, first printed in 1928. The new edition retains all of the distinctive features of the old one, and, in addition there has been considerable expansion-sixteen new experiments being included. The expansion considerably improves the book and places it.in the first rank as a laboratory manual, for either the short or long courses. The list of supplementary experiments, somewhat more difficult than the average of those in the body of the text, is well selected. The printing and binding are excellent. LEE IRVIN SMITH.
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The Chemistry of Organic Compounds. By JAMES B. CONANT. x 623 pp. New York: The MacMillan Company, 1933. Price: $4.00. This new book by Professor Conant combines a wealth of information regarding the carbon compounds with an adequate, modern theoretical treatment. In simplicity and clarity of style the book is outstanding, and this, with the excellent choice
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of material and orderly arrangement, makes the book very readable. The section on natural products is well done, and the reviewer is glad to see at last a text book of organic chemistry in which stereochemistry is treated so well. The printing and binding are splendidly done, and there are very few typographical errors. Altogether a fine piece of writing and Look making. LEE IRVINSMITH.
Gmelins Handbuch. der anorganischen Chemie. 8 Auflage. Herausgegeben von der Deutschen Chemischen Gesellschaft. 25 x 17 cm. (a) System Nummer 8 : Jod, Lieferung 2. xxiii 245-660 pp. Price: 68.50 M (subscription price: 60 M); (b) System Nummer 59: Eisen, Teil A, Lieferung 5. xiv 847-1166 pp. Price: 50 M (subscription price: 43.50 M). Berlin: Verlag Chemie G.m.b.H., 1933. (a) The volume on iodine deals with hydriodic acid, the iodides of nonmetals and metals, polyhalogenides, the oxides and oxyacids of iodine, iodine fluorides, chlorides, and bromides, nitrogen iodides, and an appendix to the first part of the volume on iodine which has already appeared. In all cases the treatment is exhaustive, accurate, and critical, full numerical data, curves, and discussions of physicochemical topics being included. The literature has been very completely covered and very modern work finds its place in the treatment. (b) The volume on iron deals with the physicochemical foundations of the technical production of malleable iron. The systems Fe-0-C, Fe-Si-0, Fe-Mn-0, Fe-P-0, Fe-S-Mn, etc., are considered. Deoxidation with manganese, carbon, silicon, aluminum, titanium and combinations of these is next dealt with. The casting of iron and steel is considered in relation to melting in crucibles, cupolas, reverberatory furnaces, Siemens-Martin furnaces, converters, and electric furnaces, The treatment of ferrous alloys includes those with manganese, chromium, molybdenum, tungsten, nickel, titanium, and vanadium. The treatment throughout is linked with technical processes and abundaqt references to literature are given. The two volumes considered fully maintain the high standard of Gmelin and are unexcelled in completeness and accuracy in their field. They are very valuable contributions to the literature of chemistry. J. R. PARTINQTON.
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