The Steam Injector
A theoretical and practical treatise on the design and operation of injectors and on the flow of fluids through and the design of nozzles.

THE INDICATOR AND ITS DIAGRAMS: WITH CHAP- TERS ON ENGINE AND BOILER TESTING. By Charles Day, Wh.Sc. Including a Table of Piston Constants. 'This book is of a thoroughly practical character, and contains numerous dia- grams from actual practice. Third Edition. Crown 8vo. Cloth, price 4s. 6d. net, post free 5s. net, abroad 5s. 6cl. net. 7. '"‘The book is one of the most useful we have met with.”—Mechanical World ' ‘(Areally excellent book, which we havepleasure in reconimending.”—Electricity. The book is notable for its lucid explanations. There is scarcely a point left tintouched.”—Textile Eecorder. “Wehave not the slightest doubt this useful little work will be thoroug-hlv appreciated by all who peruse it.”—Machinery. “ The second portion of the book contains a vast amount of valuable infor- mation, which should secure a large sale for the book. . . . It is well worth a place on the shelves of all progressive engineers, and scientiflc men g-enerallv Age of Steel. J THE MOTOR CAR RED BOOK. By W. C. Bersey. A List of Motor Cars Manufactured or Sold in the United Kingdom, 1906- 1912. Price 5s. net, post free 5s. 3d. net, abroad 5s. 5d. net. (<T1 v 33- For the concentrated character of the information, we know of no more useful reference book to the industry.”—The Motor Trader. THE MOTOR CAR IN THE FIRST DECADE OF THE TWENTIETH CENTURY. By W. Eden Hooper. A Souvenir and a Historical Survey of Mechanical Road Locomotion in England from Early Times to 1908. Amongst the unique Coloured and other Plates are the following reproductions:—Rare coloured French plate about 1830 ; Gurney’s Steam Carriage, 1829 ; Hancock’s Steam Omnibus, 1833; A Cartoon of 1829 ; First Road Steam Locomotive (Cugnot’s), 1769 ; James Steam Carriage, 1829 ; A Sketch of Goldsworthy Gurney ; Gurney’s First Steam Carriage, 1827 ; Gurney’s Steam Carriage going through Highgate Tunnel, 1828 ; Gurney’s Steam Coach at Hyde Park Corner, 1829 ; Cartoon of 1840 by Leech, “ The Horse Guards on Steam Mounts”; and many others equally historical and interesting. Price 42s. net, post free 43s. net, abroad 45s. net. B 63. HOW TO INVENT AND HOW TO DEAL WITH INVEN- TIONS. By Vabuse. The aim of the author has been to place in the hands of inventors such information which will enable them to undertake the task of satisfactorily judging their productions. Price 6d. net, post free 7d. net, abroad 9d. net. 56. MARINE ENGINEERING ESTIMATES AND COSTS. For those engaged in the Technical and Commercial Sides of Engineering and Shipbuilding. By C. R. Bruge, M.I.E.S. Price 4s. 6d. net, post free 4s. 9d., abroad 5s. net. S 1. IRON AND STEEL ANALYSIS. By A. Campion, F.I.C., F.G.S., Professor of Metallurgy in the" Glasgow and West of Scotland Technical College. 80 pages, Foolscap 8vo. Stronglv bound cloth. Price 2s. 6d. net, post free 2s. 9d., abroad 3s. net. Interleaved for notes, 6d. extra. S 2.