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.

11 MACHINES AND TOOLS EMPLOYED IN THE WORK= ING OF SHEET METALS. By R. B. Hodgson, A.M.I. Mech. E.r author of “ Emery Grinding Machinery.” Crown 8vo. Cloth, price 4s. 6d. net, post free 5s. net, abroad 5s. 3cl. net. 33. “There is a scarcity of technical literature on Presses, Press Tools, &c. Mr. Hodgson’s book will be welcomed by engineers and students desirous of g-aining a better knowledge of theoretical and practical sheet metal working. . . . Those of our readers who are interested in the working of sheet metals will find Mr. Hodgson’s book very interesting and useful.”—Iron and Steel Trades Journal. “ A most valuable and helpful handbook on the subject. It covers a very wide range. The explanations are singularly clear and concise.”—Birmingham News. “The book gives a comprehensive and clearly written account of its subject, fully illustrated by plans and diagrams, and full of useful instruction.”—The Scotsman. “Abook which should prove advantageous to both employers and workmen engaged in iron and engineering- trades. ... In consequence of its admirable treatment the book is one that will convey to the ordinary working- man that which it would be exceeding-ly difficult for him to grasp in any other form.”— Wolverhampton Express and Star. THE MANUFACTURE OF IRON AND STEEL TUBES. By Edward C. R. Marks, Assoc. M. Inst. C.E., &c. &c. Second and Enlarged Edition. Crown 8vo. Price 5s. net, post free 5s. 6d. net, abroad 5s. 9d. net. 34. “ A very serviceable little guide to a most important industry.”—The Surveyor. “The book should prove a useful handbook for manufacturers and others- interested in the subject.”—Scientific American. SCREWS AND SCREW MAKINO. Including an account of the origin of Whitworth’s, Swiss, British Association, and American Threads, &c., with 95 Illustrations. Demy 8vo. Cloth, price 3s., post free 3s. id. net, abroad 3s. 6d. net. B41. TIN-PLATE WORKING. By R. H. Clarke. An Up-to-clate Practical Handbook for the Tinsmith, Student and Amateur. Specially compiled for the Manual Training Teachers’ City and Guilds Examination. Price Is. 6d. net, post free Is. 9d. net,, abroad 2s. net. 35. “ A very practical handbook.”—Electrical Reriew. “ Altogether a well thought out little manual.”—Ironmonger. “This well-illustrated and well-turned-out book deserves and has our hearty recommendation.Manua l Training. SIMPLE STRUCTURAL WOODWORK. By George F. Rhead (National Silver Medallist). The Popular Technical Manuals, No. 2. This book comprises a series of practical examples for schools, handicraft classes, and the home, planned to meet requirements of the City and Guilds Institute examinations. Crown 8vo. 120 pages. Price 2s. net, post free 2s. 3d. net, abroad 2s. 6d. net. 36. “ Manual training teachers and scholars will be glad to avail themselves of this, little book.”—Work. “The purpose is well fulfilled, the text being lucid and practical and the illus- trations excellent.”—Surveyor Municipal and County Engineer. SPL1CING WIRE ROPES. By W. N. Brjtnton. Price 6d.,. post free 7d. net, abroad 9d. net. B 43. THE EVOLUTION OF MODERN SMALL ARMS AND AMMUNITION. By E. C. R. Marks. Price 5s. net, post free 5s. 6d. net, abroad 5s. 9d. net. B 44.