BOOK REVIEWS Wynveen, a further wealth of information on the construction and testing of laboratory scale fuel cells are presented. Chapter 2, Thermodynamics of Electrochemical Fuel Cells by M. Eisenberg, is a. review of thermodynamic principles, while Chapter 3, Kinetics and Cat,alysis by C. E. Heath and W. J. Sweeney, contains a brief discussion of electrode kinetic8 with numerous examples from the literature. The difficulties encountered with porous fuel cell electrodes in analyzing the types of polarization and the elucidation of mechanisms are outlined. There is much activity in this field not included in this review. The section of this chapter on catalysis applied to fuel cells gives an excellent critical survey of the field. A brief introduction by the editor, who deserves much credit in compiling thi. volume, is presented in Chapter 1. In the opinion of this reviewer, more attenbion to rigor and clarity of present%tion should have been paid to several of the sections on electrochemical thermodynamics and liinetics for many errors have crept in. As is inevitable in s. compilation of this kind, there is much revetition and overlap of suhject matter. 1n addition to the extensive bibliographies following each chapt,er, there is a very useful author and subject index at the end of the volume. This hook is a welcome addition to the literature of fuel cell technology and is recommended for those ahout to initiate s. research program as well as those experipnced in the fuel cell art. JosEpn W E ~ S B A R T Lockheed Research Laboratorg Palo Alto, Cal