WWNT BOOKS
VOL.4, NO. 4
mesentation of this verv worthwhile subject. The second half of the book is concerned with piem-chemistry, or the iduence of very DrrressuIeS on volume, solubility, . hizh . . etc. The reviewer was not so much interested in this subject because the parts which were easily digestible were the experiments run to show the effect of pressure and comparison of this effect with the calculated etfect obtained by the utilization of some thermodynamic equation such as the Clapeyran-Clausius equation. The results agreed very nicely with the calculations as would be expected. The apparatus used, however, was most ingeniousand i t is easily seen how a student would thoroughly enjoy himself in this line of investigation if he had the opportunity to work in Dr. Cohen's laboratory and use this very elaborate and very interesting apparatus. The entire b w k is given over t o two fields of specialized research but it is, nevertheless, both worthwhile and entertaining to the ordinary reader because the author has allowed some of his own c h a m inp personality to appear within the lines.
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and he found this little book extremely useful in making preparation for more advanced material given in lectures upon the subjects treated. The book is not intended as a reference book for the expert. but as a textbook for the beginner, who bas to "build a ladder from ignorance to knowledge." The present edition contains some material not before presented, or, a t least not so well. For example, one finds something on Atomic Strudure, and wishes there were more. The author could well have made tbis the subject of a chapter. At the end is found a list of "Problems and Questions" which is good, but which might well he extended. Problems come next t o laboratory work in driving home the principles. One of the strong points of the book has always been the "Practical Illustrations" given a t the ends of the chapters. These suggest a fine line of lecture or laboratory experiments. The press-work is good, hut the binding does not seem quite so substantial as did that of the first edition. All in all tbis is a fine little text which, for elementary work, would be hard t o equal. W. H. CHAPIN Outlines of Physical Chemistry. G e o n ~ s SENTER. Principal and Head of the Chemistry Department, Birkbeck Col- Lecithin and AUied Substances: the Lipins. Hucn MACLEAN, M.D., D.Sc., lege (University of London). D. Van Nostrand Company, New York City. AND IDA SMEDLEYMACLEAN.DSC., 421 pp. 14th edition, 1926. rx F.I.C. Longmans, Green & Ca., New 9.5 X 15 cm. 46 figures. $3.00. York City. Second edition, 1927. vii 220 pp. 38 tables. 15.5 X 24.5 em. The first edition of this hook appeared $3.75. in 1908, and made a good impression a t This treatise is a new edition of one of once. The reason for this was the fact that the author considered i t wise to the units of the series of "Monographs on present the general principles of the sub- Biochemistry" edited by R. H. A. Plimmer ject, and not t o stress any particular and F. G. Hopkins. The subject-matter theory or slant of his own. This method of the text is substantiated by an exof treatment was very much favored also haustive bibliography consisting of 655 by the fact that the book was written in a references and is distributed under the very clear and lucid style, entirely suitable following chapter titles: Subject Page for the beginner. At the time of its first C h a ~ t e r appearance the writer of this review was I. Introduction and Nomenclature 1 studying for the doctorate in chemistry, 11. The Chemistry of the Phospho-
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JOURNAL
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APRIL,1927
Subject Page fessor of Themetical Physics a t the lipins (Phosphatides), LedUniversity of Munich. E. P. Duttan and Company, New ~ o r kCity, 1927. thin, Kephalin, Spingomyelin 21 111. The Occurrence, Methods of 70 pp. 12 X 18.5 an. $1.00. Extraction, Isolation and These lectures, delivered a t the UniverPurification of the Phospholipins. ..................... 67 sity of London. deal with recent developIV. The Galactolipins (Cerebrosides) ments of the quantum theory. Various quantum numbers are introduced and Phremosin, Kerasin, and Nerdefined in the first lecture, and a new vn... 9 V. ~ ~~ i l ~ i~ n ~ sCUO~ ~~ ~tdh te w~of the ~ hydrogen ~ ~ , atom is developed. according to which this atom has a sherin, Carnaubon. Paranudeoture analogous to that of the alkali metals. Protagon, Jecorin, and other Insuiiciently Characterized The second lecture is mainly mathemati~ ~ h ~ t a ~ 124 ~ cal. ~ The third lecture deals with the VI. plant L ~ P ~ U S . . 153 periodic system of the elements and the tetrahedral crystal structure of certain VII. The Function of the Lipins. Lipelements of the fourth group. I n this ins from the Biological Standpoint ...................... 167 connection the problem of chemical Bibliography...................... 189 linkage is discussed in general, with Index.. .......................... 217 especial reference to the nature of nonpolar compounds. The purpose of the book, to quote from The topic; taken up are important and the editor's general prrface. the Prese* comprehensive, but the treatment is altation of "full and independent information together too abstruse for the casual reader. of the work which has been done upon the professor Sommerfeld has subject." annotated some of Einstein's writings on Without question, no pains have heen Relativity, and the majority of chemists spared in the effort to fulfil this Put'Pose, will undoubtedly find the argument in not only in the selection of e ~ p e r i m a t a l this volume quite as elusive as the intimate and theoretical data, hut also in the intr0- details of the new theory. duction of this material in a m n ' k TO the enthusiast who is prepared to straightforward style and from an un- grapple with any difficulties, however, biased standpoint. the book opens up an unusually fascinating Throughout the volume one senses an and fertilefidd. undercurrent of restlessless arising out of JAMES KENDALL the exact functions of the phospholipins and galactdipins. and an appeal, work ~ o o kin General Science. ELLIS fested most markedly in Chapter VII, C. PERSING, A.B., Department of Biolfor added original work leading toward .gy and General Soence, Cleveland s o 0 1 of Education, and KIMBERM. the development of a more definite understanding of these important conPERSING,B.S., Department of Science, stituents. Glenville High School, Cleveland, Ohio. This monograph shares the same high 1n the Harter Work Book Series, edited standard of excellence exhibited the by any cleveland Myers, Ph.D. The other books of this series and will Prove a ~~~t~~ school Supply Co., Cleveland, valuable acquisition to anyone interested ohio, 1927. 127 pp. 48 figs. 21 X in biochemistry from any angle. 27 cm. Price, 8.60. H. Born W n r s This is a notehook for student use in Three Lectures on Atomic Physics. general science. It containsthe characterARNOLDSOMM~RPELD, F.R.S. Pro- istic blank spaces for writing answers, chapter
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