The friction and lubrication of solids

of Illinois; Herbert E. Smith, Head, Physical Science Depart- ment, Lake View High School, Chicago; M. V. McGill, Head. Howe Military School, Howe, In...
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CHEMISTRY AND YOU

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Chanter IV (The Periodic Svstem and the Structure of Atomst

B. Smith Hopkina, Professor of Chemistry Emeritus, University of Illinois; Herbert R. Smith, Head, Physieal Science Department, Lake View High School, Chicago; M. V. McGiIl, Head Howe Military School, Howe, Indiana; and G. M. Bmdbury, Instructor in Chemistry, Montdair High Schod, Montclair, New 772 pp. Jersey. Lyons and Camahan, Chicago, 1950. ix Illustrated. 15 X 23 Em.

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"CHEMISTRY AND You" is a p e ~ m n dstudy of the subject of chemistry. At the same time none of the chemical principles or necessary theories of this science has been sacrificed for the numerous practical applications of chemistry in our daily lives. The book opens with a sories of challenging pictures showing how chemistry affects daily living. I t is s. wonderful book to give boys and girls experience in good thinking. There are seventeen units nicely organized. The only change the reviewer would make in the organieatition would be to place the study of carbon last. The readings for pleasure and profit are well selected and the exercises offer ample material for review. "Chemistry and You" is accompanied by laboratory manual entitled "Chemistry and You in the Laboratory." It is compact and small in size (20.5 X 15.2 cm.) and contains 78 experiments. Tho laboratory manual is furnished with a teacher's key.

methods used in studying inorganic stmctures-X-ray analysis, conductivity measurements, dipole moment measurements, light absorption and emission, the Raman effect,and magnetic measurements. In Chanter VI, the author returns to a discussion of the chemical bond,-which is here taken up from a different point of visw than in Chapter 11. Volume 11, which has not yet appearod in the English translation, will discuss Volatility of Inorganic Substances, Crystal Chemistry, Silicates and Glasses, Metals and Alloys, and Inorganic Chemical Reactions. The usefulness of the first volume will be greatly increased when the second volume apwars, because Volume I contains many references to Volume 11, and the index to both appears in Volume 11. The translator has attempted to adhere closely to the style of the original author, with the result that the sentence structure is sometimes clumsy and difficult to read. The proof~adingwas not carefully done, and many minor mistakes appear. None of these, however, will cause serious trouble. On the whole, the book is excellent, and is a distinct contribution to the literature of inorganic chemistry. JONN C. BAILAR, JR

GRETA OPPE

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STRUCTURAL CHEMISTRY OF INORGANIC COMPOUNDS. VOLUME I

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THE FRICTION AND LUBRICATION OF SOLIDS

F. P. Bowden and D. Tobor, Department ofPhyaical Chemistry,

Cambridge Universih, England. Oxford Un~versityPress. LonWalter H k k e l , Professor of Pharmaceutical Chemistry, Tiibin- don. 1950. rii T 337 pp. I14 figs 45 tables. 16 X 24.5 cm. gen University. Translated by L. H. Long, Lecturer in the De- $7. nartment of Chemistrv. Universitv Colleoe. Exeter. Elsevier THIS book is in the International Series of Monographs on k'ublishiug Co., New .kork, 1950: xii / '437 pp. 50 figs. Physics. "It describes an experimental study of the physical 17.5 X 26.5 cm. $9. and, to a less extent, of the ehemied processes that occur during THE author of this book has attempted "to furnish inorganic the sliding of solids, pertieularly metals, and an investigation into chemistry with that which organic chemistry has long possessed the mechanism of friction and boundary lubrication. I t is not a d eansti- general textbook, since it deals almost entirely with experimental as a basis for its systematization, namely, a s t ~ c t u r and tutional theory in one embracing representation." This is a researches carried out by the writers and their eollahorators and difficult task, for the structure of inorganic atoms is much more colleagues." complex than that of the atoms commonly found in organic With the limitations admitted in the preface, the book is an chemicals, and the nature of chemical binding in inorganic excellent presentation of this specific subject. moleculee and crystals is many times more varied than that exKENNETH A. KOBE hibited by the compounds of carbon. Perhaps Dr. Hiickel has Uxrvsnern orl T m i s not completely achieved this ambitious god, but he has written Armrn. T e x * ~ an excellent book on inorganic chemistry. Chapter I consists of an outline of the development of our ideas of the nature of matter and of valence. This is philosophiINTRODUCTORY NUCLEAR PHYSICS cal in nature and is well done, but it has little connection with the 0 remainder of the book. In Chspter I1 the basis of systematiza- Dovid Hallidoy, University of Pittsburgh. John Wilay and tion is laid down. I t is pointed out that inorganic compounds Sons, New York, 1950. ix 558 pp. 279 figs. 69 tables. may be classified as volatile and nonvolatile, and the latter are 14.5 X 22 cm. $6.50. further divided into those which are soluble and those which are THEpreparation of an up-to-date book on d l phases of nuclear insoluble. Since these physical properti&=are not dependent upon the nature of the atoms in the material hut upon the nature physics is an ambitious undertaking. The author of this volume of the binding forces between them, the ultimate systemiestian has been markedly successful in covering the wide range of aubis based on the homopolar hand, the heternpolar band, and the ject mstter and still maintaining it in eompaet resdLble form. nnst,ulatea of the coordination thearv. The discussion of the To accomplish this he has eliminated a. p a t deal of older work -~~~ I:~rt,;r((.'l>nptrr111, 142 pngea) ir spkn~lid,and ilwlud~% ~ * v r r . ~ which I has been superseded and has reduced mathematical dalopir.8 which are not sdequntely disruswl i r ~mort bcruks o f . in- velopment to a minimum. organic chemistry--dinuelear and polynuclertr oompounds, the A thorough understanding of modern nuclear theory demands polyacids, isopoly bases, and the structure of the metaphosphates some knowledge of quantum mechanics, and while certain of the concepts and equations are used in this book a great deal of infor&id soluble silicates

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