book reviews study donor-acceptor complexes. The survey of techniques is quite inclusive, ranging from the almost classic optical methods to the newest magnetic resonance methods. This is the most valuable chapter if the book is used as a supplemental text for a. molecular structure course. Misprints are rare in the volume but the errors on page 36 in the line above equation 3.2 should he noted. Chapter six, Molecular Complexes of Group 111, is almost entirely concerned with boron acceptor-nitrogen donor compounds with very little said about the important aluminum compounds. The volume ends with interesting prajections for where next for the donor-acceptor complexes, mentioning examples of molecular complexes in organic semi-conductors and important biological donoracceptor complexes. The husband-wife team of A. and B. Pullman would be amused a t their appellation of brothers on page 168. This generally readable little volume certainly has a. place on the shelf of the worker in the field for its references. The general reader will find i t a good introduction to the over all field and the student will find it interesting a~pplementalreading in a molecular structure course.
GERALD R. VANHECKE Shell Developmenl Company E m e r ~ i l l eCalifornia ,
Energy Changer in Biocharnieal Reactions
Iruing M . Klotz, Northwestern University, Evanston, Ill., Academic Press, 108 pp. Figs. New York, 1067. x and tables. 14.5 X 21 cm. $5.95.
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I n his preface the author states that "I can only hope that my selection (of topics) will prove suitable for some students interested in acquiring an illsight into the fundamentd concepts and simple calallntions of biochemical energetics." This hope has been admirably accomplished in this small text designed to supplement advanced freshman chemistry and biology and first year biochemistry courses. The level of presentation of t,he topics-the laws of thermodynamics, computations of standard free energy changes, the dependence of chemical potential a n eoncentration, changes in chemical potential when g r o u p (e.g. phosphate) are transferred from one molecule to another, stabistical thermodynamics-is certainly suitable for better students a t the freshman level and the text will provide some interestine exam~lesof ~ h v s i c dchemisters are supplemented with prohlem sets.
REEDM. I Z ~ T T Brigham Young University Provo, Utah A704 / Journal of Chemical Education
