Mechanical Engineer.—" ... the work needs only to be known in order to be well appreciated by the electrical profession."
LABORATORY AND FACTORY TESTS IN ELECTRICAL Engineering. By George F. Sever and Fitzhugh Townsend, Second Edition. Thoroughly revised. Demy 8vo. 282 pages. 10s. 6d. net.
This book represents the laboratory work required in the Electrical Engineering Course at Columbia University. It is intended to serve as a text-book for the use of students, but furthermore it may be found useful by those who are engaged in the electrical profession.
RADIO-TELEGRAPHY. By C. C. F. Monckton, M.I.E.E. With 173 Diagrams and Illustrations. Extra Crown 8vo. 6s. net.
Contents:—Preface. Electric Phenomena. Electric Vibrations. Electro-Magnetic Waves. Modified Hertz Waves used in Radio-Telegraphy. Apparatus used for Charging the Oscillator. The Electric Oscillator: Methods of Arrangement, Practical Details. The Receiver: Methods of Arrangement, The Detecting Apparatus, and other details. Measurements in Radio-Telegraphy. The Experimental Station at Elmers End: Lodge-Muirhead System. Radio-Telegraph Station at Nauen: Telefunken System. Station at Lyngby: Poulsen System. The Lodge-Muirhead System, the Marconi System, Telefunken System, and Poulsen System. Portable Stations. Radio-Telephony. Appendices: The Morse Alphabet. Electrical Units used in this Book. International Control of Radio-Telegraphy. Index.
Nature.—"A very interesting and valuable book."
MATHEMATICS
THE CALCULUS AND ITS APPLICATIONS. A Practical Treatise for Beginners, especially Engineering Students. With over 400 Examples, many of them fully worked out. By Robert Gordon Blaine, M.E., Assoc.M.Inst.C.E. Lecturer at the City Guilds' Technical College, Finsbury, London, E.C. Author of "Hydraulic Machinery," "Lessons in Practical Mechanics," "The Slide Rule," etc. Crown 8vo. 4s. 6d. net.
The difficulties which beset the beginner are fully explained, and the principles of the differential and integral calculus, and differential equations, are clearly set forth in the simplest language; each rule being illustrated by practical examples. Applications of the calculus to problems in engineering and physics form a feature of the work, which concludes with an up-to-date chapter on Harmonic Analysis, of special interest to electrical engineers and students of electro-technics.
ENGINEERING