ELECTRON MICROCOPY OF CELLS AND TISSUES. Vol. I. Instrumentation and Techniques. By Fritiof S. Sjöstrand. New York, Academic Press, 1967. 462 pp. $18.50. This book is a well-illustrated volume that covers the instrumentation and techniques of high-resolution electron microscopy. While the author's approach is somewhat biased and lacks depth in certain areas, particularly in the use of chemical and cytochemical information, the book is still valuable for the uninitiated reader. The physical and mechanical background of the instrument is well presented, but the potential use of chemical information is deficient. The author suggests that a better understanding of fixation and staining reactions would enhance the book's value. METHODS IN ENZYMOLOGY. Vol. XI, Enzyme Structure. Edited by C. H. W. Hirs. New York, Academic Press, 1967. xviii, 988 pp. $33.00. This volume covers nearly all the techniques needed for a thorough study of enzyme structure. It includes articles on amino acid analysis, end-group analysis, subunit separation, cleavage of disulfide and peptide bonds, peptide separation, sequence determination, and modification of enzyme structure. The volume is comprehensive and well-organized, following the logical order of techniques used in enzyme purification. The articles are detailed and provide valuable information for researchers in enzyme structure. NEUROPSYCHIATRY IN WORLD WAR II, Vol. 1. General Editor, Col. Robert S. Anderson. Editors for Neuropsychiatry, Col. Albert J. Glass and Lieut. Col. Robert J. Bernucci. Washington, D. C., Office of the Surgeon General, 1966. xxxiv, 898 pp. $7.50. This volume discusses the problems of psychiatry in World War II, focusing on mobilization, manpower, selection, training, and utilization of military personnel. It highlights the significant impact of neuropsychiatric conditions on military personnel, with a large percentage of registrants classified for neuropsychiatric reasons and a high rate of hospitalization for such conditions. The volume provides an important historical perspective on neuropsychiatry during the war.ELECTRON MICROCOPY OF CELLS AND TISSUES. Vol. I. Instrumentation and Techniques. By Fritiof S. Sjöstrand. New York, Academic Press, 1967. 462 pp. $18.50. This book is a well-illustrated volume that covers the instrumentation and techniques of high-resolution electron microscopy. While the author's approach is somewhat biased and lacks depth in certain areas, particularly in the use of chemical and cytochemical information, the book is still valuable for the uninitiated reader. The physical and mechanical background of the instrument is well presented, but the potential use of chemical information is deficient. The author suggests that a better understanding of fixation and staining reactions would enhance the book's value. METHODS IN ENZYMOLOGY. Vol. XI, Enzyme Structure. Edited by C. H. W. Hirs. New York, Academic Press, 1967. xviii, 988 pp. $33.00. This volume covers nearly all the techniques needed for a thorough study of enzyme structure. It includes articles on amino acid analysis, end-group analysis, subunit separation, cleavage of disulfide and peptide bonds, peptide separation, sequence determination, and modification of enzyme structure. The volume is comprehensive and well-organized, following the logical order of techniques used in enzyme purification. The articles are detailed and provide valuable information for researchers in enzyme structure. NEUROPSYCHIATRY IN WORLD WAR II, Vol. 1. General Editor, Col. Robert S. Anderson. Editors for Neuropsychiatry, Col. Albert J. Glass and Lieut. Col. Robert J. Bernucci. Washington, D. C., Office of the Surgeon General, 1966. xxxiv, 898 pp. $7.50. This volume discusses the problems of psychiatry in World War II, focusing on mobilization, manpower, selection, training, and utilization of military personnel. It highlights the significant impact of neuropsychiatric conditions on military personnel, with a large percentage of registrants classified for neuropsychiatric reasons and a high rate of hospitalization for such conditions. The volume provides an important historical perspective on neuropsychiatry during the war.