Handbook of chemistry

Handbook of chemistry

March, I935.] BOOK I~EV1EWS. ,385 X-Ray Spectra loglcally follow that of classification of the elements. Chapters Five and Six deal with the Theory...

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March, I935.]

BOOK I~EV1EWS.

,385

X-Ray Spectra loglcally follow that of classification of the elements. Chapters Five and Six deal with the Theory of Fine Structure and Polarization and Intensity of Spectral Lines respectively. A general discussion of Series Laws constitutes the makeup of the Seventh. The importance of the translator in a work of this type certainly cannot be ignored. As in all translations of excellence, the original text has not been transcribed'~too literally and the author has sanctioned such modifications as have been added at the discretion of the translator. An addendum by Professor Brose serves to bring the reader up to date on the more recent developments on atomic and sub-atomic physics. The Mathematical Appendix is transferred from the original text and is intended to serve those who are more advanced. T. K. CLEVELAND HANDBOOK OF CHEMISTRY. Compiled and Edited by Norbert Adolph Lange, Ph.D.,assisted by Gordon M. Forker, B.S. (Chem. Eng.), with an appendix of mathematical tables and formulas by Richard Stevens Burington, Ph.D., 1265 pages plus mathematical supplement of 248 pages and index, 29 pages. I3.4 X I9. 7 cms. Sandusky, Ohio, Handbook Publishers, Inc., I934. Price $6.00. Chemists everywhere should welcome this excellent new handbook. While designed particularly for chemists it has many features commending it to physicists, mineralogists, engineers, dieticians, manufacturers and others. The book is too big and heavy for pocket use. It is attractively printed and Fabricoid bound but there is some question as to how long the binding will stand up under the heavy usage for which such a book should be designed. The tables are printed in a modern type clearer than usually found, with generic names in bold face. The pages are relatively large and tables usually not crowded, an innovation to eye-strained scientists. It is impossible to give any adequate comprehension of the contents in so brief a review. Practically all the tables that chemists have learned to look for in other handbooks are here though frequently under different and sometimes improved arrangements. The tables are simple, however, and only a few references to them are needed to make their use perfectly familiar. A few tables not ordinarily looked for in chemical handbooks may be cited at random: Hazardous chemicals, changes in atomic weights from I894 to I933, effective radii of atomic ions, properties of minerals, radio detector minerals, names and formulas of organic radicals, numerical prefixes, separate tables of constants of alkaloids, of glucosides, physical and chemical properties of resins, the vitamins, numerous tables relating to milk and ice cream, several tables of interest to water chemists, of composition and heating values of representative coals, excellent tables of composition and properties of alloys, pipes, valves and fittings, extended tables relating to ceramics, compounds useful for determining melting points with the microscope, antifreeze solutions, properties of refrigerants, humidity and dew point tables. There are extended tables on barometry and barometric corrections and on values of gravity at various stations. Other useful tables give the common physical chemistry equations and list the chemical journals. The practical man will appreciate that many tables name names and cite the manufacturer as in connection with tables of alloys.

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REVIEWS.

[J. F. I.

There is less opportunity for innovation in the mathematical section. The usual things are there. Some of the less common things are seven place logarithms of numbers IO,OOOto I2,OOO, decimal equivalents of common fractions, interest, discount and annuity tables, American experience mortality tables and the probability and elliptic integrals. It is of interest to point out that tables of molecular weights, gravimetric factors and so on are compounded with the I933 International Atomic Weights. The book is modern in every sense and will surely gain wide popularity. LESLIE R. BACON. HIGH-FREQUENCY MEASUREMENTS, by August Hund, first edition, 491 pages, illustrations, I5.5 X 23. 5 cms. New York and London, McGraw-Hill Book Company, Inc., I933. Price $5.oo. This book, treating on a highly technical subject, is an up-to-date work on high frequency phenomenon applied to measurements. Measurements, in some respects, at high frequencies do not differ essentially from low frequencies, while in other respects new methods are necessary. Chapter I on Fundamental Relations and Circuit Properties, explains the differences and the basic considerations necessary for high frequency measurements. The apparatus necessary for establishing high frequencies, other useful laboratory apparatus and systems for measuring high frequency, in general, are described in Chapters II and I[I. The following sections of the book are devoted to various determinations, each section treating on specified subjects such as frequency determination, effective resistance, high frequency power and losses, etc. Every measurement of value is taken up and treated in a thorough and practical manner. At the end of the book a part is devoted to miscellaneous measurements and data in which there are notes on special indicators and information helpful in procedures where a method is employed in one case which is not suitable for another, since the order of magnitude of the quantity to be determined and the range of frequency play an important part. This book is a business-llke, practical treatise by a master of the subject. Perusal of its contents should prove of great benefit to those qualified by education and experience in the subject. It is valuable as a text and reference book to those whose occupation or inclination carries them into experimental or inventive fields as well as practical applications. R. H. OPPERMANN. NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS. Report No. 489 . Air Conditions Close to the Ground and the Effect on Airplane Landings, by F. L. Thompson, W. C. Peck, and A. P. Beard. 15 pages, illustrations,23 X 29 cms. Washington, Superintendent of Documents, 1934. Price ten cents. This paper reports an investigation undertaken to determine the feasibility of making glide landings in gusty air. Wind velocitieswere measured at several stations between the ground and a height of 51 feet, and flighttests were made to determine the actual influence of gusts on an airplane gliding close to the ground. The airplane used for the flighttests was equipped with a landing gear of unusually long travel so that glide landings with the elevator fixed could be