BOOK REVIEWS 389 M. Lollar. Reinhold Publishing Corp., New York 22, N.Y. 1956. 495 pages, 91/4 X 61/4 inches, illustrated and indexed. Price $14. The publication of books on the basic and commercially applied science of leather has not kept pace with the rapid developments in this field. The present volume is one of four intended to fill this void. The new volume utilizes the efforts of specialists on each phase of the science, thus giving it an international scope. Any effort by a group of con- tributors is a problem in avoiding duplication. The present volume is no exception though repetition sometimes serves a very useful purpose. Some chapters have ex- tensive bibliographies while others do not. Highberger's chapter on the chemistry of skin proteins is clearly •presented and well illustrated. Merrill's chapter on the mecha- nism of unhairing is thoroughly done and useful to depilatory chem- ists. These two chapters are most ou.tstanding from a cosmetic view- point. The balance of the book appears to be as well done. If your interests are in this general area, it is recommended that you start your four volume set with this first one.--M. G. DENAVARRE. TECHNIQUE OF ORGANIC CHEM- ISTRY, Vol. III in Two Parts, edited by A. Weissberger, 19.56. Part I, 873 pages, illustrated and in- dexed. Price $17.50. Part II, 391 pages, illustrated and indexed. Price $8.00. The growth within the fields of organic chemistry covered by these two books, is best told by the fact that the present second edition has practically double the number of pages and over twice as many references as the first edition. Part I, entitled Separation and Purification, is contributed to by thirteen authors in a total of six sections. Three subjects appearing in the previous edition have been dropped, since they are now found in other volumes of this series, sub- stantially enlarged. The laboratory procedures are written from the point of view of practical application, particularly adaptation to pilot plant and larger scale production. Part II, dealing with Laboratory Engineering, is simply a continua- tion of the material covered in Part I, though for reasons best known to the editor, the material was divided. This book covers subjects such as heating, cooling, grinding, screening, classifying, mix- ing, selection of materials for con- struction of equipment and oper- ation• with gases. Both books are useful additions to the chemical laboratory library.-- M. G. DENAv^RRE. Hut•^N PERSPIRATION, byYas Kuno. Charles C Thomas Publisher, Spring- field, Ill. 1956. 416 pages, size 51/,. X 81/,. inches. Price $9.50. Essentially, this is a revision of the 1934 edition of "The Physiology of Human Perspiration," a classi- cal work then, as is the present com- pletely rewritten monograph. Among the new data are dis- cuss•ons of recent knowledge of epidermal structure and sweat glands mental and thermal sweat- rag water and chloride balance suppression of local hyperhidrosis evolution and development of sweat apparatus. Thirteen chapters and a generous appendix cover the new and old subjects as well.

390 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS The section dealing with the sup- pression of sweat by external agents is disappointing in its brevity and coverage. Similarly, methods of measuring perspiration and body odor as devised and published with- in the toilet goods industry are absent. The book is more valuable from the physiologist's point of view.-- M. G. DENAVARRE. ORGANIC CHEMISTRY, by Louis F. and Mary Feiser, 3rd Edition. Reinhold Publishing Corp., New York 22, N.Y. 1956. 1112 pages, size 61/4 X 91/2inches, indexed. Price $10. To begin with, this book is very nominally priced in today's mar- ket. A number of completely revised sections are found in this edition to keep the subjects up to date. Some of these deal with biochemistry, structural theories and tracer tech- niques. Over 450 biographical sketches are included to give back- ground on new developments. The present edition is more useful than earlier ones. It will find readers from both the academic and industrial spheres of chemistry. While the reviewer has had many opportunities to use previous edi- tions-and found them useful, he has found in this one in particular a few subjects which do not seem to be too highly specialized, yet not mentioned. Thus, urocanic acid, psoralens and EDTA are not given in the index. It is possible the sub- jects are covered somewhere in the text. Even so, the book is far begond such trifling omissions in its vast text content. It cannot be too highly recommended as an all around text and reference.--M. G. DENAVARRE. VAPOUR PHASE CHROMATOGRAPHY, by D. H. Desty. Academic Press, New York 3, N.Y. 1957. Size 6 X 10 inches, illustrated. Price Only in a field as new and active as gas-liquid chromatography is it possible to publish all the papers presented at a Symposium in the form of a book such as "Vapour Phase Chromatography" and have a useful reference guide. This book, which is the Proceedings of the Symposium sponsored by the Hydrocarbon Research Group of the Institute of Petroleum, held at the Institution of Electrical Engi- neers, London, June 1, 1956, covers theory, application, and instrumen- tation for gas-liquid partition chro- matography. The paper on "The Thermody- namics of Gas-Liquid Chromatog- raphy" is of especial interest since this is one of the best methods for collecting thermodynamic data. There are several chapters on fac- tors affecting thermal conductivity detectors, column efficiency, and choice of liquid phase. Three new detectors are discussed in three of the papers, namely, the Martin Gas Density Balance, the hydrogen mi- croflare detector, and the 3-ray ionization detector. Vapor phase chromatography at high temperatures receives its usual high interest and is the subject of three of the papers. Fatty acids and fatty alcohols, with which Dr. A. J. P. Martin was first concerned when he invented gas-liquid chromatography, are dealt with in two papers. Of interest to those in the "aero- sol" industry will be the paper on "The Quantitative Analysis of Mix- tures of Chlorofluoromethanes." Apparatus and techniques for re- solving a mixture of trifluorochlo- romethane, dichlorodifluorometh-