TRADES & MANUFACTURES, THE INDUSTRIAL ARTS, ETC. 15 



SOAPS, CANDLES AND GLYCERINE. A Practical Manual 

 of Modern Methods of Utilisation of Fats and Oils in the Manufacture 

 of Soap and Candles, and of the Recovery of Glycerine. By L. L. LAM- 

 BORN, Massachusetts Institute of Technology, M.Am.C.S. Medium 

 8vo, cloth. Fully illustrated. 706 pp Net 303. 



THE SOAP INDUSTRY RAW MATERIALS BLEACHING AND PURIFICATION OF SOAP-STOCK 

 THE CHEMICAL CHARACTERISTICS OF SOAP-STOCK AND THEIR BEHAVIOUR TOWARDS SAPONI- 

 FYING AGENTS MECHANICAL EQUIVALENT OF THE SOAP FACTORY COLD PROCESS AND SEMI- 

 BOILED SOAP GRAINKD SOAP SETTLED ROSIN SOAP MILLED SOAP-BASE FLOATING SOAP 

 SHAVING SOAP MEDICATED SOAP ESSENTIAL OILS AND SOAP PERFUMERY MILLED SOAP- 

 CANDLES GLYCERINE EXAMINATION OF RAW MATERIALS AND FACTORY PRODUCTS. 



SOLUBILITIES OF INORGANIC AND ORGANIC 



SUBSTANCES. A Hand-book of the most Reliable Quantitative 

 Solubility Determinations. Recalculated and Compiled by ATHERTON 

 SEIDELL, Ph.D., Chemist, Hygienic Laboratory, U.S., Public Health 

 Service, Washington, D.C. Medium 8vo, 370 pages ... Net 12s. 6d. 



TEA MACHINERY AND TEA FACTORIES, Describing 



the Mechanical Appliances required in the Cultivation and Preparation 

 of Tea for the Market. By A. J. WALLIS-TAYLER, A.M.Inst.C.E. 

 Medium 8vo, 468 pp. With 218 Illustrations Net 255. 



WAGES TABLES. At 54, 52, 50, and 48 Hours per Week. 

 Showing the Amounts of Wages from one-quarter of an hour to sixty-four 

 hours, in each case at Rates of Wages advancing by One Shilling from 

 4s. to 55.?. per week. By THOS. CARBUTT, Accountant. Square crown 

 8vo, half-bound ... ... ... ... ... ... ... ... 6s. 



WATCH REPAIRING, CLEANING, AND ADJUSTING. A 



Practical Handbook dealing with the Materials and Tools used, and 

 the Methods of Repairing, Cleaning, Altering, and Adjusting all kinds 

 of English and Foreign Watches, Repeaters, Chronographs, and Marine 

 Chronometers. By F. J. GARRARD, Springer and Adjuster of Marine 

 Chronometers and Deck Watches for the Admiralty. Second Edition, 

 Revised. With over 200 Illustrations. Crown 8vo, cloth Net 45. 6d. 



WATCHES & OTHER TIME-KEEPERS, HISTORY OF. 



By J. F. KENDAL, M.B.H.Inst. ... is. 6d. boards ; or cloth, 2s. 6d. 



WATCHMAKER'S HANDBOOK. Intended as a Workshop 

 Companion for those engaged in Watchmaking and the Allied Mechanical 

 Arts. Translated from the French of CLAUDIUS SAUNIER, and enlarged 

 by JULIEN TRIPPLIN, F.R.A.S., and EDWARD RIGG. M.A., Assayer in 

 the Royal Mint. Fourth Edition. Crown 8vo, cloth ... ... 95. 



WEIGHT CALCULATOR. Being a Series of Tables upon 

 a New and Comprehensive Plan, exhibiting at one Reference the 

 Exact Value of any Weight from i Ib. to 15 tons, at 300 Progressive 

 Rates, from id. to i68s. per cwt., and containing 186,000 Direct Answers, 

 which, with their Combinations, consisting of a single addition (mostly to 

 be performed at sight), will afford an aggregate of 10,266,000 Answers ; the 

 whole being calculated and designed to ensure correctness and promote 

 despatch. By HENRY HARBEN, Accountant. Sixth edition, carefully 

 Corrected. Royal 8vo, strongly half-bound i 5S '. 



WOOD ENGRAVING. A Practical and Easy Introduction to 

 the Study of the Art. By W. N. BROWN. Crown 8vo, cloth. is. 6d. 



