ARC-WELDINGHANDBOOKbyKARL MELLERContentsI. Introduction. 11. Welding Processes (a) Carbon Arc(b) Metal Arc. 111. Physical Nature of the Arc. IV.Welding Equipment and *Accessories. (a) Direct-CurrentWelding (b) Alternating-Current Welding (c) Maintenance ofWelding Machines (d) Accessories (e) Automatic WeldingMachines. V. Welding Electrodes (a) Electrodes for MetalArc Welding (b) Carbon Electrodes for Carbon Arc Welding. VI.Welding of Steel (a) Parent Material (b) Types of WeldedJoints (c) Practical Welding (d) Strength of Welded Joints (e)Cost of Electric Arc Welding. VII. Cast Iron and Cast SteelWelding (a) General Observations on the Welding of Cast Iron(b) Cold Welding of Cast Iron (c) Hot Welding of Cast Iron(d) Welding of Cast Steel.VIII. Arc Welding of Non-Ferrous Metals (a) Aluminium and its Alloys (b) Copper and itsAlloys (c) Nickel and its Alloys. IX. Testing Welded Joints(a) Non-Destructive Tests (b) Tests to Destruction.The object of this handbook is to enable the operator tounderstand the processes involved in arc-welding, and toutilise the results of the latest research in improving and simplify-ing his work. The welding engineer will derive considerableinterest from the descriptions of plant and equipment, and moreespecially from those pages devoted to the choice and testing ofelectrodes. Owners of small shops, who are frequently thrownentirely upon their own resources, will find invaluable informationand advice in this handbook.Crown 8vo. 200 pp. 83 illustrations. 8'6 netHUTCHINSON'S SCIENTIFIC & TECHNICAL PUBLICATIONS34 PATERNOSTER Row, LONDON, E.C.4Telegraphic Address :'' Casthermo, Smith,London."Telephone :Terminus 2030.The mark of precision and eficiency.BRITISH MADETHROUGHOUTIf you use heat-it pays to measure it accuratelyB. 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Chemical Properties of Rubber-Ch. X. Mastication-Ch. XI. Chemical Composition of Rubber-Ch. XII. Structureof Rubber-Ch. XIII. Vulcanisation-Ch. XIV. Testing ofRubber-Ch.XV. Compounding of Rubber-Ch. XVI.Accelerators-Ch. XVII. Ageing of Rubber-Ch. XVIII.Vulcanisation Theory-Ch. XIX. Accelerator and AntioxidantTheory-Ch. XX. Reinforcement of Rubber-Ch. XXI.Reclaimed Rubber-Ch. XXII. Hard Rubber-Ch. XXIII.Direct Use of Latex-Ch. XXIV. Synthetic Rubber-Ch. XXV.Analysis of Rubber.Demy 8v0, 342pp., 70 illustrations. 18’- netHUTCHINSON’S SCIENTIFIC & TECHNICAL PUBLICATIONS34 PATERNOSTER Row, LONDON, E.C.4vi Just PublishedSYSTEMATIC ORGANIC CHEMISTRYModern Methods of Preparation and EstimationW. M. CUMMINC, D.Sc., I . V. HOPPER, Ph.D., and T. S. WHEELER, Ph.D.Third Edition. Demy 8vo. XXVl + 547 pages. 25/- netATOMIC THEORY: AN ELEMENTARY EXPOSITIONA. HAAS, Ph.D. New Edition revised byW. A.CASQARlDemy 8vo Many Illustrations 15'- netTranslated by T. VERSCHOYLE.PHYSICAL CHEMISTRYJOHN ECGERT. 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