Just Out. In Large 8vo. Profusely Illustrated. 8s. 6d. net.
WIRELESS TELEGRAPHY.
By GUSTAVE EICHHORN, Ph.D.
Contents.—Oscillations.—Closed Oscillation Systems.—Open Oscillation Systems.—Coupled Systems.—The Coupling Compensating the Aërial Wire.—The Receiver.—Comparative Measurement in the Sender.—Theoretical Results and Calculations in respect of Sender and Receiver.—Closely-Coupled Sender and Receiver.—Loose-Coupled Sender and Receiver.—Principal Formulæ.—The Ondameter.—Working a Wireless Telegraph Station.—Modern Apparatus and Methods of Working.—Conclusion.—Bibliography.—Index.
Just Out. Large 8vo, Handsome Cloth, with 334 Pages and 307 Illustrations. 16s. net.
ELECTRICITY METERS.
By HENRY G. SOLOMON, A.M.Inst.E.E.
Contents.—Introductory.—General Principles of Continuous-Current Meters.—Continuous-Current Quantity Meters.—Continuous-Energy Motor Meters.—Different Types.—Special Purposes, i.e., Battery Meters, Switchboard Meters, Tramcar Meters.—General Principles of Single-and Polyphase Induction Meters.—Single-phase Induction Meters.—Polyphase Meters.—Tariff Systems.—Prepayment Meters.—Tariff and Hour Meters.—Some Mechanical Features in Meter Design.—Testing Meters.—Index.
“An earnest and successful attempt to deal comprehensively with modern methods of measuring current or power in electrical installations.”—Engineering.
“Trustworthy information.... We can confidently recommend the book to every electrical engineer.”—Electricity.