486 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS clude gravimetric, volumetric, po- tentiometric, electrolytic, colori- metric, polarimetric, nephelometric and radiation procedures. The text is readable, and methods and sep- arations are described carefully. The s.etup of special trains, etc., are g•ven diagrammatically and carefully labeled. Although the sixth edition follows the pattern and repeats some sec- tions of the fifth edition, it should be a worthwhile addition to chem- ical libraries, in view of its wide scope and great comprehensiveness.-- M. M. RIEGER, WARNER-LAMBERT PHARMACEUTICAL Co. SURFACE ACTIVITY, by J. L. Moil- liet, B. Collie, and W. Black. D. Van Nostrand Co. Inc., Prince- ton, N.J. 1961. 518 pages. Price $15. This is the second edition of a monograph which, since its ap- pearance in 1951, has become one of the standard works in its field. Readers familiar with the first edition will find that the authors have changed the form very little. Nevertheless, they have fitted in a wealth of new material, deleting older items and references that are no longer of prime value, to produce a fresh, up-to-date volume. The book's 15 chapters are grouped into three parts entitled "Physical Chemistry of Surface Active Agents and Interfacial Proc- esses, .... Technical Applications of Synthetic Surface Active Agents" and "Chemical Constitution of Synthetic Surface Active Agents." Except for the last part, some 140 pages,. which is largely descriptive orgamc chemistry, emphasis throughout the book has been placed on the physico-chemical behavior of surfactants. A unifying thread of modern colloid science is care- fully maintained in the technical applications discussions as well as in the chapters dealing with funda- mental physical chemistry. This is indeed well-named as a treatise on Surface Activity since it is the behavior of the materials, rather than the materials themselves or their specific uses, that occupies the limelight. After a brief in- troduction, the authors begin with a discussion of the solution states of surfactants, emphasizing theories of micelie formation and structure, and solubilization. This is followed by chapters on the in- terfacial adsorption of surfactants and on the major groups of inter- facial processes, including wetting, defiocculation, protective colloid ac- tion, emulsification dispersion and foaming. The discussion is well balanced between the formal mathe- matical approach and the descrip- tive or phenomenological approach. In the five chapters on technical applications the various individual processes are grouped on the basis of the dominant colloid chemical effect that is involved. Thus the processes that depend on wetting, emulsification, dispersion of solids and detergency are considered col- lectively and their common features emphasized. A separate chapter is devoted to processes that depend on a variety of other colloidal prop- erties of surfactants. The book is excellently written and the references are well selected. The authors never neglect to guide the reader with their own opinion when controversial or conflictin• literature is cited. These points all contribute to making a good read- able text that will be useful to all interested in surface activity--A. SCHWARTZ, Harris Research Labora- tories, Inc. t/A MANUAL OF COSMETro ANALYS•S, by Sylvan H. Newberger, Ph.D. The Association of Official Agricul-

JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 487 tural Chemists, Inc., Washington 4, D.C. 84pages. Price $4.00. This booklet describes analytical procedures which are currently used in the laboratory of the Division of Color and Cosmetics of the Food & Drug Administration. These procedures are authoritative because they are used for the analyses re- quired for the enforcement of the Federal Food, Drug and Cosmetic Act. However, the proc.edures are equally authoritative since they are based on sound chemistry and on Inethods widely adopted in the cosmetic industry. Three chapters in this book, which comprise approximately one third of the total pages, are of particular interest. The first of these is concerned with the analysis of creams. This chapter is equally useful for the analysis of lotions and, with minor modifications, can be adapted for the analysis of various types of hair dressings, brilliantines, etc. This is .especially true if the information •n the chapter on creams is ' ' ' with that in tnc corn Dlnect L•_ A chapter on the analysis of lipsticks. The third chapter which appears of major interest to the reviewer is the chapter on the analysis of shampoos, which describes the separation of a variety of detergents and their qualitative identification. Other important chapters are devoted to the analysis of nail lacquers, of hair dyes, and of permanent waving products. Each section is devoted to qualita- tive analysis as well as to quantita- tive methods of assay. A number of flow sheets are presented for the qualitative analysis of cosmetics. From the numerous infrared spectra included in this volume, it must be concluded that the F.D.A. places particular emphasis on this ex- tremely useful method of qualitative determination. Over 50 infrared spectral curves are included in the text. Admittedly, this is not a comprehensive collection, but it should prove useful to the cosmetic analyst who is confronted with a variety of qualitative identification problems. The reviewer was surprised to find no mention made of additives used in creams which are routinely sold to the American.publ)c. For ex- ample, no mention is made of hormones and skin lighteners which are frequently used in creams and lotions. Similarly, a large number of other cosmetic preparations are not included in this book. Facial makeup products and the identifica- tion or separation of various pig- ments used in them are not covered. Shaving preparations (tube, jar or aerosol), pre-electric shave lotions, and after-shave lotions are not mentioned in this volume. Aserious omission from this volume is the lack of attention given to eye makeup products. It is well known that the F.D.A. has developed methods for the analysis of eye products and for •1_ _ i ..1 •'l• •.' ' uL• luentmcation of pigments in such products. It is surprising to find that these methods and analyses were not made part of this book. Another omission is the absence of spectral data of components of sunscreening preparations which are identifiable by their ultraviolet and infrared spectra. Finally, it would have been desirable to include a series of qualitative and quantita- tive procedures for various germici- dal and antimicrobial substances which are used commonly in cosmetic preparations. Regardless of these omissions, the booklet is an important and significant contribution to cosmetic science and will be of value for all who are involved in analytical procedures.--M. M. R•EOER, War- ner-Lambert Pharmaceutical Co.