BOOK REVIEWS 425 The book includes basic review of the color science and carries on into the more exact definition and meas- urement of color. One can find much use for this book in the make-up end of the cos- metic industry. The committee is to be commended for accomplishing a task which is truly unique.--M. G. I)ENAvARRE. CLAYTON'S THEORY OF EMULSIONS AND THEIR TECHNICAL TREATMENT, 5th revised edition, by C. G. Sum- ner. The Blakiston Co., Inc., New York 22, N.Y. 1954. 669 pages, 6 X 91/4 inches, illustrated and indexed. Price $14.50. It is eleven years since the fourth edition appeared the present revi- sion is written by Dr. Sumner, the original author being unable to do the work. Some chapters are con- densed, others expanded to show the deletion of out-dated material and the addition of the new. Silicones as defoamers are given in a small footnote only in the chap- ter on surface phenomena. Under emulsifying agent, The Wetting Agent Bulletins of the dmerican Perfumer are not mentioned. Most of the published work appearing in THE JOURNAl, OF THE SOCIETY OF COSMEWm CHEMISTS has not been mentioned. The chapter on emulsifying agents, while expanded and cover- ing many types of emulsions, is weak on drug, cosmetic and flavor emul- sions. The almost 50 pages could easily have been doubled. The section on technical opera.- tions in preparing emulsions •s fairly complete. It includes ultra- sonic methods. Clayton's "Theory of Emulsions" is a classic in its field. It bridges theory with fact. If the theory is not completely understood, cer- tainly the practice is just as much an e.nigma to emulsion technolo- gists •n industry. It is one thing to work with pure systems, and another to work with variable mixtures. So those en- trusted with the task of making safe, stable cosmetic emulsions are always interested in any phase of the subject that may help in their work. This revised edition has been needed. You will want it for refer- ence.--M. G. I)ENAv^RRE. TEXTILHILFSMITTEL UND WASCH- ROHSTOFFE, by Kurt Lindner. Wissenschaftliche Verlagsgesell- schaft M.b.H., Stuttgart 1, Ger- many, 1954. 976 pages, 63/4 X 91/2 inches, illustrated and indexed. Price 113 DM. Here indeed is a monumental book, Germanic in coverage, on materials used in textile processing, their chemistry and patent back- ground. The book is divided into four parts, namely, basic organic mate- rials, the manufacture of textile chemicals, special materials and methods of analysis. Each part is a book in itself. The section dealing with the man- ufacture of textile chemicals is almost 300 pages long, covering all main types of materials. Surfact- ants most widely used are included. In fact the material on ampholytes is one of the most complete this reviewer has seen. The Tego com- pounds are described but the Deri- phats and ampholytic Miranols are not mentioned. The American polyacrylates are not given. The appendix lists manufacturers from Switzerland, Austria and Ger- many French, Belgian, British, Italian and U.S. products are hardly mentioned. Each company's prod- ucts are listed in continuous style, a very unmethodical presentation.

426 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Six additional contributors wrote various chapters in their respective specialties. The book is well done and printed in legible type. No errors were noted. Coverage goes through 1953. This is a useful reference on surfactants and related textile aux- iliaries.--M. G. DENAVARRE. THE LIPIDS. Volume II, by Harry J. Deuell, Jr. Interscience Publish- ers, Inc., New York 1, N.Y., 1955. 919 pages, 6 X 9 inches, illus- trated and indexed. Price $25. Six chapters discuss the digestion, absorption, transport and storage of fat in and by the body. This is called the biochemistry of the lipids. The complex process by which water insoluble substances are di- gested and absorbed into the cir- culation is described in great detail in the first chapter. Obviously the vital role of enzymes comes into play. The more recent knowledge of the usefulness of cortical hot- ,nones is included. This is a chap- ter of almost 200 pages. The fate of digested lipids, how and where they are stored, their pathological effects and value to the body, are all subjects well reviewed. Lipids of special nature with their properties, certain lipcid soluble vitamins, lecithins and brain lipids are all thoroughly described. The author has brought together and evaluated many useful facts on lipids. Those working or having an interest in this field cannot be with- out this volume or its earlier Volume I which discussed chemistry of lipids. A third volume is due in the future. No errors were noticed after fairly thorough examination of the entire book. The index which was used by the reviewer seems ade- quate. The price seems a little high, but the limited size of the edition ,nay have been the cause. This is a recommended and valu- able reference.--M. G. DENAvARRE. GENERAL CHEMISTRY, SECOND EDI- TION, by Linus Pauling. W. H. Freeman & Co., San Francisco, Calif., 1953. 710 pages, 61/4 X 91/2 inches, illustrated and indexed. Price $6.00. Along with several new chapters, the text has been completely over- hauled. While a class text, it requires a considerable background in chemistry and related sciences to be thoroughly understood. Illus- trations help explain the text. Thirty-three chapters cover the usual range of subjects in a general chemistry course. The section on organic chemistry is sketchy as it often is in a general chemistry text. However, the author illustrates the helical configuration of polypep- tides with a short description. Sili- cones are described but a more thorough coverage is indicated. If you want a general chemistry reference this is an up-to-date book. --M. G. DENAVARRE. POCKET BOOK OF CHEMICAL TECH- NOLOGY, by V. Stannett and L. Midin Chemical Publishing Co., Inc., Brooklyn 2, N. Y. 1954. 283 pages, indexed, 41/2 X 68/4 inches. Price $4.75. The book is small enough for a pocket book but its stiff cover makes it unhandy to be used this way. The chemical data are not com- plete. Tables of properties of or- ganic and inorganic substances cover only the more common materials, data on which are readily found in any of several chemical handbooks. Specific heats of some organic sub- stances are too limited to be of•nuch use. About half of the book is devoted