BOOK REVIEWS 321 James W. Laist, covering copper, silver, and gold. The preface repeats the practical nature of these volumes, with wide rather than thorough coverage. An examination of the subject matter confirms this. No errors were noted in a casual checking of the test.-- M. G. DENAVARRE. CONDENSED PYRIDAZINE AND PYRAZI•E RI•cs, by J. c. E. Simpson. Interscience Publishers, Inc., New York 1, N.Y. 1953. 394 pages, 6 X 9 inches indexed. Price $12.50. This is the fifth volume of a series devoted to a comprehensive discussion of heterocyclics. The present volume deals systematically with the chemistry of the book's subject matter together with re- lated systems. Material on the cinnolines and phthalazines appears to be ex- ceptionally inclusive while that on the quinoxalines is more recent. The chapters are all arranged on the basis of methods of preparation, properties, and reactions. Tables are used to good advantage, though some seem to be complicated with too many footnotes. Some eight pages of appendices list ultraviolet absorption data, basicities and antibacterial prop- erties of the class of compounds being considered.--M. G. deN. SUCCESSFUL COMMERCIAL CHEMICAL DEVELOPME•% H. M. Corley, Editor-in-Chief. John Wiley & Sons, Inc., New York 16, N.Y. 1954. 374 pages, 6 X 9 inches, indexed. Price $7.75. The application of science to the commercial development of a chemi- cal is very comprehensively covered in a new book, "Successful Com- mercial Chemical Development." This book is the first and only documentation of the important principles that govern each essential step in the selection and develop- ment of promising new chemicals. As such, it is an important con- tribution to business literature and should be useful to everyone with a responsible position in the chemical industry. Every chapter represents the thoughts of many individuals who are committee members of the very young (seven-year-old) Commercial Chemical Development Association. A collaborative effort of this scope is an extremely difficult undertaking and it is to the credit of the editor that he has molded information from numerous sources into a well- organized manuscript. The list of contributors reads almost like a "Who's Who of Chemical Industry" and represents nearly every segment of the industry. The book is well designed and beautifully printed. It contains ex- cellent tabular presentation of material and numerous references to the literature. One caution about a book of this sort is that it presents the procedures and techniques used by the larger companies which are not always possible for smaller organizations. Smaller companies may find it help- ful to know how things are done by the industrial giants, but they fre- quently have to find their own short cuts. While the various chapters, from "The Origin and Handling of New Product Ideas" to "Product Label- ing, Packaging and Shipping Con- sideration," present a complete picture of the chemical development industry, perhaps the most useful chapter is the one on "Definitions." In this industry where growth has been so rapid, terms are used with-

322 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS out an accepted understanding by all. If the book serves no other purpose than to bring about a uniform usage and precise under- standing of such terms as "Basic Reasearch, .... Applied Research," "Technical Research, .... Use Re- search, .... Product Research," etc., it will have provided a very im- portant contribution to the whole industry.--E. G. McDoNoucH, Evans Research and Development Corp. WAX ENOYCt, OPEDIA (Wachs Enzyklopadie), by L. Ivanovszky. Verlag fftr chemische Industrie H. Ziolkowsky, K. G., Augsburg 2, Germany.. 1954. 232 pages, linen bound, size 5 X 68/4 inches, illustrated and indexed. Price DM 11. The book is divided into three general parts, (1) an introduction to the 'field of waxes, (2) chemical physics, and (3) the science of retention. The first part consisting of about thirty pages gives basic information on waxes and their uses. The second portion as its title implies discusses structures, phase-rule, specific systems, and so forth. Part three reviews the relationship in wax/solvent systems. The author is no newcomer in this field. Some of his theories are not generally accepted, which does not necessarily make them use]ess. Some experimental data are given to support the theories. These do not seem adequate, however. This work is based on the author's publications of this subject appear- in Seifen, O/e, Fette, PFachs, which is largely a theoretical physical chemis- try of waxes. This is a poorly understood field. The book under review does contribute much to the knowledge in the wax industry. It is a condensed survey, the first of two volumes. Some of the work pin points problems in the cosmetic industry and if proved, may help in understanding the role of waxes in cosmetics.--M. G. DEN. A FORMULARY FOR EXTERNAL THERAPY OF THE SKIN, by C. N. Frazier and I. H. Blank. Charles C Thomas, Springfield, Ill. 1954. 118 pages, indexed. Price $3.25. This is a brief text concerned with external therapy of the diseased skin it does not deal with the treat- ment of cutaneous symptoms of other diseases. It was prepared originally to fill the requirements of the Massachusetts General Hos- pital. In spite of its brevity, it is not limited to a simple listing of formu- las and of the purposes which they are intended to serve. Instead, it contains short but informative chap- ters on several relevant topics such as the objectives and principles of external therapy, the cleansing of the skin and the different types of cleansing agents, the composition of ointment vehicles including a discus- sion of emulsions, and others. Spe- cific medication is described under headings such as "Antipruritics,•' "Antiinfectives" (including ants- bacterial, antifungal and antipara- sitic agents), "Anti-eczematous and Anti-seborrheic Agents" and "Anti- perspirants." The formulary is highly eclectic in that usually only one formula of a lotion, ointment or powder is given for a particular pur- pose. At the end of every chapter, there is a list of references. The book does not, nor does it in- tend to, supply a complete coverage of the several subjects dealt with. Essentially, it represents the auth- ors' ideas as to the scope of an