Modern transistor circuits

BOOK HYDRAULIC ENERGY DISSIPATORS, by E. A. Elevatorski. 214 pages, illustrations, 6 X 9 in. New York, McGraw-Hill Book Co., Inc., 1959. Price, $10.00. This book gives a thorough presentation of the theoretical and practical aspects of hydraulic energy dissipators. Written especially for the designer of hydraulic structures, the various functions and uses of energy dissipators are clearly described and illustratecl. Design procedures for such elements as hy,draulic jump type stilling basins, valves and gates, bucket-type energy dissipators and drop structure stilling basins are topics thoroughly examined. Design examples and problems dealt with are: preventive measures for erosion below existing dams; use of hydraulic models and model-prototype conformance. THE CELLULAR SLIME MOLDS, by John Tyler Bonner. 1.50 pages, diagrams, plates, 54 X 8$ in. Princeton, Princeton UniversiQ Press, 1959. Price, $4.00. In this volume the author discusses the relation of cellular slime molds to other organisms and the structure and life histories of various types of slime molds. Briefly summarizing the work already done in this field, the book’s emphasis is placed on the mechanics of development and attempts to fit the knowledge of slime molds into modern embryological views. A comprehensive bibliography is included and should prove a valuable reference for specialists as well as a useful introduction for the non-specialist. BASIC PHYSICS OF ATOMS AND MOLECULES, by U. Fano and L. Fano. 414 pages, diagrams, 6 X 9 in. New York, John Wiley & Sons, Inc., 1959. Price, $10.00. This volume presents a qualitative picture of the properties of atoms rather than the detailed techniques of quantum mechanical calculations. The authors give a clear, unitied presentation of quantum physics, without requiring an extensive previous knowledge of physical theory or familiarity with its mathe-

NOTES matical procedures. The inductive analysis starts from a few experiments that illustrate directly the characteristic properties of atomic systems. NUCLEONICS FUNDAMENTALS, by David B. Hoisington. 410 pages, illustrations, 6 X 9 in. New York, McGraw-Hill Book Co., Inc., 1959. Price, $9.50. Offering a broad survey of the field of nuclear physics and engineering, this book deals with the accomplishments, applications, problems and limitations associated with the use of radioactive substances, nuclear reactors and other nuclear devices of science and industry. Some of the topics discussed are basic atomic and nuclear physics, particle accelerators, radiation protection, instrumentation, fission, reactor principles, research and power reactors, thermonuclear power, nuclear explosives and isotope separation. Treatment of the subject matter is not highly mathematical, with the differential notation used sparingly. A text for students whose mathematical training has been limited to algebra and slight knowledge of calculus. MODERN TRANSISTOR CIRCUITS, by John M. Carroll. 268 pages, illustrations, 8) X 11 in. New York, McGraw-Hill Book Co., Inc., 1959. Price, $8.50. A comprehensive collection of modern transistor circuits, classified and arranged for easy reference, is presented in this volume. Almost 200 circuits are presented, with complete design information and electronic component values. The circuits are arranged both by generic types such as amplifiers, oscillators, power supplies and pulse circuits as well as by specialized applications such as ; audio and broadcast and home entertainment r-f communications circuits. Emphasis is given to new circuits combining transistors and electron tubes, and transistors and magnetic amplifiers. Profusely illustrated with schematic diagrams, and photographs showing construction of equipment. 543