A Treatise On The Principles And Practice Of Harbour Engineering

ELEGTRIGAL ENGINEERING. 49 In Large 8vo. Profusely Illustrated. 8s. 6d. net. WIRELESS TELEGRAPHY, By GUSTAVE EICHHORN, Pa.D. Contents. —Oscillations. —Closed Oscillation Systems. —Open Oscillation Systems. —Coupled Systems.—The Coupling Compensating the Aerial 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. “Well written . . . and combines with a good deal of description a careful investigation of the fundamental theoretical phenomena.”—Nature. 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 Continuons - 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 Polyphasé Induc- tion Meters.— Single-phase Induction Meters.—Polyphasé Meters.— Tariff Systems.—Prepayment Meters.—Tarift' 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 electrica! installations.”— Engineering. ^ Trustworthy information. . . . We can confldently recommend the book to every eleotrical engineer.” — Electricity. Second Edition, Cloth, 8s. 6d. Leather, for the Pocket, 8s. 6d. GBIFFIN’S ELECTRICAL PRICE-BOOK: For Electrical, Civil, Marine, and Borough Engineers, Local Authorities, Architects, Railway Contractors, &c., &c. Edited by H. J. Dowsing. “ The Electrical Prick-Book removbs all mystbry about the cost of Electrical Power. By its aid the bxpbnsb that will be entailed by utilising electricity on a large or small scale can be discovered.**—A rckilect. ELECTRIC SMELTING AND REFINING. By Dr. W. Borchers and W. G. McMillan. Second Edition, Revised and Enlarged. 21s. net. [See page 67. ELECTRO - METALLURGY, A ITreatise on. By Walter G. McMillan, F.I.C., F.C.S. Second Edition, Revised and in Part Re-Written. 10s. 6d. [See page 67. ELECTRICAL PRACTICE IN COLLIERIES. By D. Burns, M.E., M.Inst.M.E. Second Edition, Revised and greatly Enlarged. 7s. 6d. net. [See page 56. LONDON: CHARLES GRIFFIN & CO., LIMITED, EXETER STREET, STRAND,