BOOK REVIEWS Formale Kinetik (Formal Kinetics). By H . Muuser. Bertelsmann Universitats-Verlag, Diisseldorf 1974. 1 st edit., 368 pages,bound,DM 78.-. This book describes the concentration and time laws for simple and multistage reactions in homogeneous systems at constant temperatures and constant volume with detailed consideration of photoreactions and of the methods for evaluation of kinetic measurements. Basic knowledge of kinetics is a prerequisite for its understanding; theories of the molecular course of elementary reactions are not a subject of this textbook. The first part describes, with numerous examples, first simple and equilibrium reactions, then parallel and successive reactions that can be traced back to two linearly independent steps. The method used for setting up the differential equations is always simple and clear, being assisted by a rectangular scheme of stoichiometric coefficients. The result of integration is set out without explanation, but in more difficult cases with brief references to the method or the literature. Diagrams showing the relation between the extents of reaction are used to explain multistage systems. Relaxation processes are not considered in the discussion of approximation methods for integrating differential equations. In the second part of the book, after a brief introduction to photochemical primary processes, the quantum yields are derived schematically again with use of examples, for simple and complicated photoreactions, and there is a rather detailed explanation of the integration of differential equations that describe the relation between concentration, time, extinction coefficients, and intensity. Evaluation of kinetic measurements provides the content ofthe third and last part. Here theauthor differentiates between analyses of concentration measurements and of physical numerical data, with extinction measurements providing most of the examples. There is an interesting and extensive compilation ofthe methods used for determining the number of linearly independent partial reactions and reaction orders, and for evaluating the differential equations and the integrated time laws. The possibility of using digital and analog computers is touched on only in passing. In places the mathematical part the book is difficuIt to read. It can be recommended for scientists and students interested in kinetic measurements. Gvr/rorrl Plutz [NB 270 IE] Comprehensive Biochemistry. Vol. 31. A History of Biochemistry. Part 111: History of the Identification of the Sources of Free Energy in Organisms. Edited by M . Florkin and E. H . Stotz. Elsevier Scientific Publ. Comp., Amsterdam 1975. 1st Edit., XX, 475 pp., 170 tables, 42 figs., 3 tables, bound, Dfl. 130.--. Following the establishmenl of elementarycdTconstituents and localization of the signs of life of the cell, development of ideas on the energy balance became one of the fundamental concepts in biochemistry that was just becoming an independent science. Following Lucoisier’s classical work, with its nevertheless misleading equation of organisms and heat engines, intuition and feedback of critical testing brought biochemistry by trial and error onto intersecting paths-with constant interaction of the state of theoretical knowledge and the methodical progress of related sciences. Atigric. Chon. i t l i w w f . Edir. I Vol. 14 ( 1 9 7 5 ) /I No. 1 0 This third part of the History of Biochemistry pictures the intertwining connections in a manner such that it is hard to decide which to admire more: the enthusiasm and detailed knowledge of the world-ranging author M . Florkin or his critical and just assessment of the great controversies-he had often known the protagonists personally, so that he describes the theses and arguments and often the final settlement of polemics and disputed problems with stimulation derived from his own experience. His knowledge of the world is also shown in his judgments on the formation of scientific “schools” and the role of independent Institutions in and for research. It is found again and again that naive and incorrect interpretations devised by scientists fettered to their times became fruitful in independent heads- -provided they were kept on the shoulders’-but is is found also that, as in other fields of endeavor. apparently trouble-free genius is the crowning achievement of long development and thus actually a very conservative and hoarding, though also open-minded, spirit. He is able to give the all too narrow forms of thought an infusion from new disciplines and thus to uproot previously fixed concepts. In this area lies the recognition that energy-generating processes are centered in specific structures whose organization is suitably differentiated and that they need phosphoric acid, which is bound in “energy-rich” form in the processes of anaerobic, respiratory and photocontrolled phosphorylation and can thus serve as the driving force of the isothermal chemical power machine. The present volume, packed with material and easy to read, is an outstanding enrichment of the total work’*’, undoubtedly a pioneering performance, based on intense activity, pleasure in aphoristic penetration, and brilliant skill in presentation, with convincing and stimulating effects. These are not found elsewhere covering such a wide span. Finally, an extensive portrait section promotes interest in this book as a picture book and for studies of physiognomy. Lothw Jaerzicke [NB 282 IE] [*I Cf. Angew. Chem. internat. Edit. 14. I Y O (1975). Solutions and Solubilities, Part I. Edited by M . R. J . Duck. Vol. VlII of the series “Techniques of Chemistry”. Edited by A . Weissberger. John Wiley & Sons, New York 1975. XII, 475 pp., bound, f 16.00. Physical Chemistry. An Advanced Treatise. Edited by H. Eyring, D. Henderson, and W Jost. Vol. VII: Reactions in Condensed Phases. Academic Press, New York 1975. XXII, 794 pp., bound, $ 58.00. Physical Chemistry. An Advanced Treatise. Edited by H . Eq’ring, D. Henderson, and W Jost. Vol. XIB: Mathematical Methods. Academic Press, New York 1975. XX, 565-1 151 pp.? bound, 8 47.00. 719

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