Gas Analyst’s Manual (incorporating Hartley’s“Gas Analyst’s Manual” and “Gas Measurement”).By J. Abady. 102 illustrations, 576pp. demy 8vo. (1902) net 180
Gas Works: their Arrangement, Construction, Plantand Machinery. By F. Colyer. 31 foldingplates, 134 pp. 8vo. (1884) net 86
Transactions of the Institution of Gas Engineers.Edited by Walter T. Dunn, Secretary.Published annually. 8vo. net 106
Lighting by Acetylene. By F. Dye. 75 illus.200 pp. crown 8vo. (1902) net 60
A Comparison of the English and FrenchMethods of Ascertaining the IlluminatingPower of Coal Gas. By A. J. Van Eijndhoven.Illustrated, crown 8vo. (1897) 40
Gas Lighting and Gas Fitting. By W. P. Gerhard.Second edition, 190 pp. 18mo, boards. (New York,1894) net 20
A Treatise on the Comparative CommercialValues of Gas Coals and Cannels. By D. A.Graham. 3 plates, 100 pp. 8vo. (1882) 46
The Gas Engineer’s Laboratory Handbook. ByJ. Hornby. Second edition, 69 illus. 328 pp.crown 8vo. (1902) net 60

HISTORICAL AND BIOGRAPHICAL.

Extracts from the Private Letters of the lateSir William Fothergill Cooke, 1836-9, relatingto the Invention and Development of the ElectricTelegraph; also a Memoir by Latimer Clark.Edited by F. H. Webb. Sec. Inst. E. E. 8vo. (1895) 30
A Chronology of Inland Navigation in GreatBritain. By H. R. De Salis. Crown 8vo. (1897) 46
A History of Electric Telegraphy to the year1837. By J. J. Fahie. 35 illus. 542 pp. crown 8vo.(1889) 20
History and Development of Steam Locomotionon Common Roads. By W. Fletcher. 109illus. 288 pp. 8vo. 50
Life as an Engineer: its Lights, Shades, andProspects. By J. W. C. Haldane. 23 plates,338 pp. crown 8vo. (1905) net 50
Philipp Reis, Inventor of the Telephone: a BiographicalSketch. By Prof. S. P. Thompson.8vo, cloth. (1883) 76
The Development of the Mercurial Air Pump.By Prof. S. P. Thompson. Illustrated, royal 8vo,sewed. (1888) 16

HOROLOGY.

Watch and Clock Maker’s Handbook, Dictionary and Guide. By F. J. Britten. Tenth edition, 450 illus. 492 pp. crown 8vo. (1902) net 50
The Springing and Adjusting of Watches. By F. J. Britten. 75 illus. 152 pp. crown 8vo. (1898) net 30
Prize Essay on the Balance Spring and its Isochronal Adjustments. By M. Immisch. 7 illus. 50 pp. crown 8vo. (1872) 26

HYDRAULICS AND HYDRAULIC MACHINERY.

(See also [Water Supply].)