distmeiiug being the wrong halide ,on and tho wrong name for tho pseudohalogen on oaees 47 and 64. resoeetivelv. an extra .. ~ ~ y ~ ~011 w IgI w ~ ~~! ' ~ A uf ~ LIIL . . Ifirs1 re,t~iw ,,~pxge .{4, a t ~ vl t m l w i , m lwrwew t l w t ~ s e,,f -(?c?' 8m.d "('0'' i n rv:t< IIOM d and (e) on page 157.
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reviewer especially found it to be a worthwhile reading supplement in a course in organometallic chemistry, in which current research papers (including literature references) were stressed in a seminar-type presentation. The book will, however, find little use as a reference work, and for this purpose the above-mentioned t,wovolume set by Caates, et al., is highly recommended. MARVIND. R a u s c ~ University of Massaehusetls Amhersl, OiOOP Problems in Organic Structure Determination
Addisa Auk, Cornell College. McGraw-Hill Book Co., New York, 1967. vii 184 pp. Figs. and tables. 25.5 X 18 cm. 53.95.
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This book is made n p of six parts: (1) Spectra-structnre correlations (24 pages); (2) Problems (100 problems, 132 pages);
(3) Answers: struct,ures and references; (4) Classification of synbhetic-products problems by reaction types; ( 5 ) Origin of samples used t,o provide spectra; and (6) Index of compounds. I t is a 7 by 10 in. paperback; the printing is excellent. The level of the book is indicated by the snthar's statement that "The problems require a knowledge of organic chemistry equivalent to that obtained in an int,roduetory course and a baokground in infrared, ultraviolet, nmr, and mass spectroscopy similar to that which can be obtained by studying "Spectrometric Identification of Organic Compounds" by R. M. Silverstein and G. C. Bassler, or "Applicstions of Absorption Spectroscopy of Organic Compounds" by John R. Dyer." The one-hundred problems are presented in approximate order of increasing difficulty. Many ir and nmr spectra are utilized and much less often actual nv spectra; instead absorption milxime. and r values are supplied. Approximately 20% of the problems use mass spectrnl data. Of the tots1 number of conlpounds involved in the problems, approximately 50% contain nonaromatic earbocyclie rings and 13% contain nonaromatic heterocyclic rings. Synthetic compoonds make up 80% of the problems, t,he rest. being of natural origin. In illmast all cases the data on which the problems are based are taken directly from the literature and references to the
original pnhlilieationr are given. This leature of the book should provide excellent incentive and encouragement to the student to go to thc original literature. Currently, this text is being used by one of us in a senior level discussion in orgenic chemistry. I t hay been an excellent, source of novel, exciting, and sophisticated chemical discussions; the problems are interesting and well presented. The book deserves to be widely used. Davm E.HORN and JAMER L. A. WEB^ Goucher College Rallimo7e, Towson, Md. 21204
Isotopes in Chemistry
J. F. Duncan and G. R. Cook. Oxford University Press, New York, 1968. xv 258 pp. Figs. and tables. 15.5 X 23.5 em. Paperbound, $4.40; clothbound, $8.80.
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In the preface the authors state that they "have tried to ahow what has been and what can be discovered about the fundamentals of chemical systems using isot,opic methods." They have written the book for third year undergraduate students rather than the specialist in radiochemktry. The first three chapters contain a. brief review of relevent background ma(Continued on page A981)
