A Practical Manual On Sea Water Distillation
With A Description Of The Necessary Machinery For The Process

______________________________________________ 46 CHARLES G RI FEIN <h CO.’S PUBLICATIONS. ___________________________________ _________ ELECTRICAL ENGINEERING. Second Edition, Revised. In Large ivo. Handsome Cloth. Projusely- Illustrated with Plates, Diagrams, and Figures. 245, net. CENTRAL ELECTRICAL STATIONS: Their Design, Organisation, and Management. By CHAS. H. WORDINGHAM, A.K.C., M.Inst.C.E., M. Inst.Mech.E. Late Memb. of Council Inst. E. E., and Electrical Engineer to the City of Manchester ; Electrical Engineer-in-Chief to the Admiralty. One of the most valuable contributions to Central Station literature we have hadh for some time. — Electricity. .. ________________ In Large 8vo. Handsome Cloth. Profusely Illustrated. 12s. 6d. net. ELECTRICITY CONTROL. A Treatise on Elestrie Switchgear and Systems of Electric Transmission By LEONARD ANDREWS, Associate Member of the Institution of Civil Engineers, Member of the Institution of Electrical Engineers, &c General Principles of Switchgear Design.—Constructional Details —Circuit Breakers or Arc Interrupting Devices.—Automatically Operated Circuit Breakers.—Alternating Reverse Current Devices. — Arrangement of ’Bus Bars, and Apparatus for Parallel Running.— General Arrangement of Controlling Apparatus for High Tension Systems. — General Arrangement of Controlling Apoaratus for Low Tension Systems.—Examples of Complete Installations.—Long Distance Transmission Schemes. “Not often does the specialist have presented to him so satisfactory a book as this. . . . We recommend it without hesitation to Central Station Engineers, and, in fact, to anyone interested in the subject.”—Power. _____________ Large 8vo, Cloth, with 334 Pages and 307 Illustrations. 16s. net. ELECTRICITY METERS. By HENRY G. SOLOMON, A.M.Iust.E.E. “An earnest and successful attempt to deal comprehensively with modem methods of measuring current or power in electrical installations.”—Engineering. In Large 8vo. Handsome Cloth. Fully Illustrated. TRANSFORMERS. By HERMANN BOHLE, M.I.E.E., Prof, of Electrotechnics, S.A. College, Cape Town, And Professor DAVID ROBERTSON, B.Sc., A.I.E.E., of Bristol. Contents.—General Principles.—Magnetising and No-Load Currents.—Losses in Transformers.—Iron Losses.—Copper Losses. -Temperature Rise.—Magnetic Leakage.— Leakage Inductance.—Vector Diagrams for Transformers.—Systematic Testing of Trans- formers.—Insulating Materials.—Examples of Construction. -Design of Transformers.— Applications of Transformers.—Regulating and Phase-Changing Transformers.—Index. _______________ In Large 8vo. Profusely Illustrated. 8s. 6d. net. WIRELESS TELEGRAPHY. Br GUSTAVE EICHHORN, Ph.D. “Well written . . . and combines with a good deal of description a careful investigation of the fundamental theoretical phenomena.”—Nature. LONDON: CHARLES GRIFFIN & CO., LIMITED, EXETER STREET, STRAfW