The Wireless Telegraphists' Pocket Book of Notes, Formulæ and Calculations.
By Dr. J. A. Fleming, M.A., D.Sc., F.R.S., M.Inst.E.E., etc. A valuable compendium for Wireless Engineers and Operators. Price 9s. net. (Postage 5d.)
The Handbook of Technical Instruction for Wireless Telegraphists.
By J. C. Hawkhead and H. M. Dowsett, M.I.E.E. Provides a complete theoretical course for the Postmaster-General's certificate of proficiency. 310 pages. 240 Diagrams and Illustrations. Price 7s. net. (Postage 6d.)
Manual de Instrucción Técnica para Operadores de Telegrafia sin Hilos.
Por J. C. Hawkhead y H. M. Dowsett, M.I.E.E. Precio: España, 10 pesetas; Franqueo, 1 peseta extra. América Latina, $2.25, oro, neto; Franqueo, 25 cents extra. (Great Britain, 9s.; Postage 6d.)
The Elementary Principles of Wireless Telegraphy.
By R. D. Bangay. In two Parts. Price 3s. each. (Postage 4d.) Or in one Volume, price 7s. net. (Postage 6d.) Used by H.M. Government for instructional purposes.
Principios Element ales de Telegrafia sin Hilos.
Por R. D. Bangay. (Partes 1a y 2a en un Volumen.) Precio: España, 10 pesetas; Franqueo, 1 peseta extra. América Latina, $2.25, oro, neto; Franqueo, 25 cents extra. (Great Britain, 9s.; Postage 6d.)