NECROLOGY Albert Francis Guiteras ALBERq: FR^•CIS GmxE•^S, a member of the Soci•x¾ of CosM•xm C•MIS•rS, died on May 26th. Dr. Guiteras had been consulting chemist and director of the Hudson Laboratories, New York City. Dr. Guiteras was born in Matanzas, Cuba, and came to the United States at the age of nine. He received his B.S. at Lafayette College in 1926, and his Ph.D. in chemistry at the University of Goettingen, Ger- many, in 1932. Dr. Guiteras was a junior chemist for the Food and Drug Administration in 1927-1928. He then served for two years as a food chemist for the New York City Health Department, and later worked for several indus- trial companies. In 1940 Dr. Guiterasjoined Foster D. Snell, Incorporated, where he served as research coordinator, treasurer and director of bac- teriology and toxicology. In addition to the Socmx¾ OF COSMEq:•C CHEMISTS, Dr. Guiteras was a member of the American Chemical Society, New York Academy of Chem- istry, the Chemists' Club and a fellow of the Institute of Chemistry. He contributed a great deal to the literature of steroid chemistry, organic synthesis, sterilization and disinfection and toxicology. Surviving Dr. Guiteras are two sisters in Matanzas, Cuba. 225

BOOK REVIEWS PRINCIPLES OF EMULSION TECH- NOLOO¾, by Paul Becher. Rein- hold Publishing Corp., New York 22, N.Y. I955. 149 pages, 48/4 ) 7 inches, illustrated and indexed. Price $2.95. This is the fifth in a series of"pilot books," moderately priced, intended to give a bird's-eye view of a new or advanced branch of science or in- dustry. The books are small but complete in essential information, written in as plain a language as possible. The author is associated with a company where emulsions are a daily problem, so he should be able to "speak the language." This he does and well. The writing of such a condensate is a remarkable task in itself, for the science of emulsions is a great one. The cosmetic industry is well cov- ered. Griffin HLB system is given in digest form. It almost seems too scanty. Unfortunately, the later data on HLB would have made the c.hapter more complete because this g•ves a formula for determining HLB of any emulsifier. A few subjects are omitted or in- completely discussed. Thus, spread- ing coefficient and the use of dyes to determine emulsion phase are not mentioned. Interfacial tension, while discussed is not correlated with emulsification as well as it could be. Otherwise, the book is easily read and understood. Everyone inter- ested in emulsions should have it. At the price it is within the reach of all.--M. G. Dv. NAvARRV.. OROASIC CI•.MISWR¾, Volumes III and IV, edited by Henry Gilman. John Wiley & Sons, Inc., New York 16, N.Y. 1953. Volume 580 pages and xxxviii. Volume IV, 581-I245 and xxxviii, 6 X 9 inches, illustrated and indexed. Price $8.75 each. The purpose of the present vol- umes is to cover branches of chem- istry not included in the earlier volumes. These total twelve new topics. The most useful chapters will be those on applications of infrared and ultraviolet spectra to organic chem- istry, lipids, organic dyes, chemo- therapy, antibiotics, terpenes, starch and oxidation processes. Each topic is discussed by a different author. Six subjects comprise one volume. Miller's chapter in Volume III on spectrometry will be useful to the increasing group of both infrared and ultraviolet spectroscopists in the toilet goods industry. Valu- able tables listing characteristic ab- sorption bands are given. Here one misses references to published work on cosmetic materials. The section on lipids is divided into two portions (I) simple and (2) compound lipids. Polymorphism especially in fatty acids is well done. The statement at the bottom of page 215 that spermaced "contains cetyl esters of lauric and myristic acids" (attributed to a 1929 writing 226