anisms of reactions: biochemical sienificanee of complex compounds; organic and hydrogen derivatives of metals; and the significance of complex species in catalytic processes. Many of the authors whose work is found in the Proceedings are relatively new to the literature in the field. The committee wisely invited contributions from a large numher of investigators reletively new to the field while many of the "old hands" were given other assignments in the conference stsncture. This policy was responsible for the uncovering of many new and stimulating facets of coordination chemi~try. As might he expected of a volume of this type, with mmuscript,s being suhmitted many months in advance of the actual oral presentation, one finds sub~ t a n t i a ldifferences between the written material and that presented orally. I t has already been stated that one paper was not presented s t all, though the material found in the Proceedings by this investigator is both interesting and useful. There is also a tremendous differential in the completeness with which work is reported. Certxjn of the papers are no more than s. page and a half in length whih others :mahfrrw or mun. p n p r i n Irrwh. I n tlw ILrt~rrinetnnrc the iuutei.2 inr n~on:drt.~ilrcl rid1 iu thc I'ro~.ccdinc~ than was the oral-presentation. With few exceptions the conference papers (as well as the conference. lectures) have reasonably complete bibliographies. The official language of the conference is English; however, papers may he presented in any language. Within the volume there is one paper in French and one in German. The nature and time factors involved in assembling of the volume prevented the editor from compiling a subject index, although t,here is a short author index. The reader, thus, cannot expect to find isolated items unless such may he part of the title of the paper in which case the Teble of Contents will be useful. The volume is remarkably free of typographicd wrors. Those found do not result in any serious misinterpretntion of dsta. Considering the large numher of individual contributors and the large number of countries from which papers originated, there is remarkable consistency in nomenclature. This volume in the Advances series should be on the ahelf of any chemist interested in the chemistry of the coordination compounds. ROBERTC. BRASTED University of Minnesota Minneapolis
An Introduction to Spin-Spin Splitting in
High-Resolution Nuelaar Magnetic Raronance Spectra John D. Roberts, California Institute of Technology, Pasadena. W. A. Benjamin, Inc., New York, 1961. vii 116 pp. Figs. and tables. 16 X 23.5 cm. $4.95.
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Professor Robert's little hook is an example of two new trends in chemical publishing. I t is a product of a. puh-
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lishing firm largely owned by professors and authors, and it is one of the first of 8 growing group of hooks which undertakes to give the organic chemist a working knowledge of certain especially useful or important topics in quantum mechanics. Anyone acquainted with Professor Roberts or his earlier writings will not he surprised to hear that the subject of this hook is treated with great pedagogical skill. The text is liberally sprinkled with carefully drawn figures and with helpful and ehallenging exercises and problems. No previous background in quantum mechanics is assumed, and the discussion is so thorough that i t seems likely that the able senior or graduate student (or Ph.D. organic chemist) who works through the book, doing all of the problems, will wind up with a good working knowledge of the analysis of high resolution nuclear magnetic resonance spectrosoopy. If st this point he also reads the article by P. L. Corio in Chemical Reuims, 60 363 (1960), he will ohtain considerehle additional useful information. There is no need to dwell on the increasing importance of nuclear magnetic resonance techniques to the chemist. In particular, the organic chemist who is unable to, when confronted by a complex NMR spectrum, extract the maximum structural information and draw correct. mrr14uricms, is ncrq,rinp .I lrurrlrnromr autl p r I a s pd~~ n ~ e r n h:~ndimp. u< OIWfwhlc r:iy of hope for rhc & r t i r t ~ t + ~ few who choose t o remain quantummechrtnically illiterate (while remaining financially affluent) may come from future instrumental developments. The amount of information available from a simple firstorder analysis of an NMR spectrum is greater a t a working frequency for the spectrometer of 60 Mc than it was a t 40 Mc. Perhaps in the near future we may have available 100 Mc NMR spectrometers which, while dreadfully expensive, will produce spectre. which can be interpreted by anyone. The first chapter of this book appeared in a slightly altered version as an article in a recent issue of TMS JOURNAL. BENJAMINP. DAILEY Columbia University N m York, New York
Rare Metals Handbook Edited by Clifford A. Hampel, Consulting Chemical Engineer, Skakie, Illinois. 2nd ed. Reinhold Publishing 715 Carp., New York, 1961. xvi pp. Figs. and tables. 18 X 26 em. $20.
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The second edition of this valuable eompendium has expanded its coverage t o 55 33, 52 (1956) metals. (See THIS JOURNAL, for comments on the first edition.) The information supplied by experienced, authoritative eontribnt,ors has heen edited with similar competence and is presented in an attractive format. There are new chapters on cesium, chromium, plutonium,
rubidium, scandium, and yttrium. Much previously classified information has been incorporated. The only argument a reader can have is with the title. "Rare" hardly includes tonnage lot productiou and 4 pounds of 715 pages is hardly a "handbook."
Organometallic Compounds
G. E. Coates, University of Durham, England. 2nd ed. John Wiley & Sons, Inc., New York, 1960. xiii 366 pp. Figs. and tables. 14.5 X 21 cm. $7.50.
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Although organometallic chemistry has played an important role in the development of chemistry and chemical technology for over one hundred years, the discovery of ferrocene, bishenzeneehromium, and related =-organic derivatives of transition metals within the last decade has set off a, research effort seldom paralleled in the history of chemistry. The unique properties and reactions of these substances, together with their remarkable structures and handing reletionships, have excited the interest of organic chemists, inorganic chemists, spectroscopists and crystallographers throughout the world. Recent advances in organohoron chemistry, orgmo-aluminum chemistry, the stabilization of a -bonded organic derivatives of transition metals, and the use of organometallics in the Wittig reaction and in henzyne chemistry have also certainly added impetus to the present rapid pace in orgmometallic research. I t is gratifying to those actively working in organometallic chemistry that Professor Coates has prepared an up-to-date (if this is humanly possible), expanded revision of his splendid monograph. The f a d that the hook has nearly doubled in size since the first edition in 1956 (J. CHEM.EDUC.,34, 208 (1957)) reflects the tremendous surge of organometallic research in the past five years, and certainly compensates for the higher price of the second edition. The chemistry of organometallic compounds is presented in a systematic manner by means of periodic groups, and important older topics as well as significant newer ones are included in every chapter. Professor Coates has deliberately not made the coverage of eaeh subject exhaustive, but has included enough significant material to make eaeh chapter highly readable and a valuable reference source. Perhaps the strongest possible recommendation the present reviewer can make for this book is that he is currently using it as a principal reference source in a graduate course in organometallic chemistry. For this purpose, Professor Coate's book becomes even more effective when significant topics such as hydroboration, triarylsilylmetitllic chemistry, organometallic r-complexes, etc., are supplemented by current reviews and research papers, and by the excellent (Continued on page A226)
BOOK REVIEWS recent monograph edited by Dr. Harold Zeiss ("Organometallic Chemistry," Reinhold Publishing Corp., New York, 1960). It should be pointed out that the latter monograph presents comprehensive and critical discussions on a number of important topics in organometallic chemistry, and in this way differs markedly from the systematic, descriptive nature of Professor Coate's book. This monograph can serve equally well aa a source of many topics that can profitably be included in advanced courses in organic and inorganic chemistry. Finally, because of the timeliness of its material, the excellence of its preparation and orgmiaation, and its relatively low cost, it should rate a "must" for even those few persons who are not yet acquainted with this remarkable branch of chemistry. MARVIN D. RAUSCK University of Kansas Laurence. Kansas
A Patent Manual for Scientists and Engineers
M . Naimark, Burdick and Becker, Inc., New York. Charles C Thomas, Springfield, Illinois, 1961. 108 pp. 16 X 23.5 cm. $5.50. xv Gemge
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A judge once stated, "We think it is a matter of common knowledge t h a t . resesrch scientists are patent-wise; if they are not, they should be." This small book was designed to make scientists and engineers (and students of science and engineering) a t least partially patentwise. By presenting the basic concepts of the substantive side of thelaw of oatenta. it attempts to answer for prospective patentees questions such as, "What must I know?" and "What should I do?" The short, compact chapters comprise clear and effective statements on patents, designs, copyrights, and trademarks. Subjects covered are basic principles, issuance and invalidation, rights and obligations of employers and employees, infringements, legally acceptable invention records, patents as technical literature, and addvice to one having a. possible invention. Two appendixes include a bibliography of 117 selected references and a.patent lexicon of 202 words and expressions used in connection with pt~tents. For many years chemical patents have constituted a large percentage of every volume of Chemical Abstmds. Because of their great industrial importance, both teachers and students of chemistry should understand them. Graduate students should not respond with only a blank look when asked what is patentable in their Ph.D. dissertation. This book is s. concise introduction to patents and their significance.
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M. G. MELLON Purdue Univemity Lafayelte, Indiana (Continued on page A228)
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