Transitional elements (Larsen, Edwin M.)

careful attention to convenience and typography characteristic of the previous volumes. The treatments are, in each case, sophisticated. Very definite...
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Transitional Elements

BOOK REVIEWS Actions Chimiques et Biologiques des Radicttionr

Edited by M. Ha&si1zsky. Masson et Cie., Paris, 1965. 250 pp. Figs. and tables. 16.5 X 24.5 cm. Cartonne toile, 86 F. This is the eighth in a series of volumes which have contributed notably to the literature of radiation chemistry. The book is divided into three sections: Dissociation Processes in Electronically Excited Molecules by K. Funahashi and J. L. Magee, Electron Attachment in the Gas Phase (in French) by F. FiquetFayard, and Primary Physical and Chemical Effects Associated with Emission of Radiation in Nuclear Processes by S. Wexler. It has been prepared with the careful attention to convenience and typography characteristic of the previous volumes. The treatments are, in each case, sophisticated. Very definitely, the bookis not a text for the novice who wishes to acquire from its casual reading a hackground for superficial conversation ahout the chemical physics of the interaction of radiation with matter. Of the three sections, that by Funahashi and Megee has less review character than the othen. New theory is offered but, to the dismay of the experimentalist,

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in terms of theory has not progressed far enough so that comparison of the theory presented here with experiment is possible." Hopefully, the new theoretical ideas presented may he but the prelude to developments more closely related to the needs of those who seek answers (in whole or in part) in the laboratory. The section by Dr. Fiquet-Fayard contains very much more review material, both experimental and theoretical, and should prove useful, particularly to French radiation chemists in acquainting them with the work going on principally in the United States. The contribution by Dr. Wexler is especially valuable because of the previous lack of so general an experimental and theoretical review of the effects associated with emission of radiation. It is well written, it is thorough and it will serve to stimulate many who have not appreciated the potentialities of radiation chemistry in this area. The extensive references to the literature are particularly notable; Wexler's field of interest has come a long way since the discovery of the Szilrtrd-Chdmers effect. Any library on radiation chemistry should contain this latest addition to the Hakinsky series.

Edwin M . Lama, University of Wisconsin, Madison. W. A. Benjamin, 183 pp. Inc., New York, 1965. xi Figs. and tables. 15 X 22 om. Clothbound, $4.95; paperbound, $2.45.

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This book represents another volume in a rapidly growing series of monographs which are becoming available as supplements for first and second year courses for chemistry msjon. This hook is recommended for use part of an interme diate course in inorganic chemhtry. The author's approach has been such as to provide sufficient discussion of the principles in order to make the work understandable but these principles are not generally developed in detail within the hook. Thus, the student is expected to have other sources available which would provide greater depth and rigor. The hook begins with a disoussion of the properties of the transitional elements which provides a. brief review of electronic structure, ionization potentid, and paramagnetic properties of ions. It continues with a discussion of the chemistry and structure of the metals, their oxides and halides. The relationship of structure to physical properties is pointed out in quite some detail in an understandable manner. The remainder of the hook is concerned with solution chemistry and coordinrttion chemistry and it includes such topics as oxy-anion species, oxidationMILTONBURTON reduction reactions, bonding in coordinaUniversity of Notre Dame (Cmtinued on page A174) Notre Dame, Indiana

BOOK REVIEWS tion compounds, and a discussion of reaction rates and electronic configuration. I n eeneral the book is ouite well written

GILBERTGORDON University of Maryland College Park Science of Materials

T . J . Lewis, University of London, England, and P. E. Seeker, University College of North Wales. Reinhold Publishing Carp., New York, 1965. 256 pp. Figs. and tables. 15 X 22 cm. $7.50. This slim volume, written for first-year engineering students a t the University of London, attempts". . to provide a largely descriptive but detailed account of the nature of atoms and molecules, and the manner in which they interact to form everyday materials. Such a treatment sllows us to analyze, in terms of simple physical concepts, the behavior of these materials when subject to environment of technological importance." The book does not achieve these objectives prinoipally hecause the authors chose to cover too much p u n d for readers with too little background. The treatment becomes not only "largely deseriptive" but often merely superficial. Approximately 70% of the hook covers standard topics of physical chemistry

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with emphasis on the theory although numerous references are made to practical xpplicatmns. The level of presentation is about that of the more rigorous introductory chemistry texts but it is curiously uneven. For example, previous courses in chemistry and physics are obviously s. prerequisite, as are the concepts of calculus, but several pages are devoted to a trivial discussion of the simplest hydrocarbons, structural isomerism, and aromatic compounds. Of the latter we are told that the "simplest of these is benzene, having a puckered hexagonal structure" and that . .both [KekulB structures] are equally probable and in fact a resonance condition is set up, with the double bond appearing alternatively first in one position and then the ot,her!' The last chapter of the book, Real Materials and their Predicted Behaviour (68 describes the properties of metals, organic materials (polymers), ceramics, and fuels, the latter topic including both fission and fusion reactions. This is ostensibly the meat of the book, the previous chapters having been in the way of a. preparation. Again, the severe condensation and oversimplification required by the authors' decision to cover such a. wide variety of topics precludes a significant discussion of any one of them. Each chapter concludes with a few problems which are generally either of the "discuss" type or require little more than a simple numerical substitution into formulas given in the text. Answers to the numerical problem are provided.

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The specific shortcomings of the book aside, one may question the authon' basic premise that a course of this type should be given a t the first year level. Once that decision and a realistic assesment of the average freshman's background has been made, the format of a text is pretty well determined. But the science of technological materials is, after all, extraordinarily complex. Are the drastic simplifications, the "hand waving" derivations which are required to present the material a t this level, really satisfactory for a modern engineering curriculum? I n summary, the general suitability of this text for a first course in the Science of Materials is doubtful. The average freshman will probably find the book frustrating; the superior student or one who has had PSSC physies and Chem Study, or similar courses, should be introduced to the physical chemical basis of material science without any apology. WALTERDANNAAUSER State Uniuersity of New Yolk

Buffdo Chemical, Medical, and Pharmaceutical Books Printed before 1800: In the Collections of the University of Wisconsin Libraries

Edited by John Nm, University of Wisconsin. Universitv of Wisconsin Press, Madison, 1965. 280 pp. 17 X 25 cm. $6. This book contains a, listing of the (Continued on page Al76)