#Materials Used for Making Sealing=Waxes# -- The Manufacture of Sealing-Waxes -- Wafers -- Notes on the Nature of the Materials Used in Making Adhesive Compounds -- Cements for Use in the Household -- Office Gums, Pastes and Mucilages -- Adhesive Compounds for Factory and Workshop Use. #LEAD ORES AND COMPOUNDS.# #LEAD AND ITS COMPOUNDS.# By Thos. LAMBERT, Technical and Consulting Chemist. Demy 8vo. 226 pp. Forty Illustrations. Price 7s. 6d. net. (Post free, 7s. 10d. home; 8s. 3d. abroad.) #Contents.# History -- Ores of Lead -- Geographical Distribution of the Lead Industry -- Chemical and Physical Properties of Lead -- Alloys of Lead -- Compounds of Lead -- Dressing of Lead Ores -- Smelting of Lead Ores -- Smelting in the Scotch or American Ore-hearth -- Smelting in the Shaft or Blast Furnace -- Condensation of Lead Fume -- Desilverisation, or the Separation of Silver from Argentiferous Lead -- Cupellation -- The Manufacture of Lead Pipes and Sheets -- Protoxide of Lead -- Litharge and Massicot -- Red Lead or Minium -- Lead Poisoning -- Lead Substitutes -- Zinc and its Compounds -- Pumice Stone -- Drying Oils and Siccatives -- Oil of Turpentine Resin -- Classification of Mineral Pigments -- Analysis of Raw and Finished Products -- Tables -- Index. #NOTES ON LEAD ORES:# Their Distribution and Properties. By Jas. FAIRIE, F.G.S. Crown 8vo. 64 pages. Price 2s. 6d. net. (Post free, 2s. 9d. home; 3s. abroad.) #INDUSTRIAL HYGIENE.# #THE RISKS AND DANGERS TO HEALTH OF VARIOUS OCCUPATIONS AND THEIR PREVENTION.# By Leonard A. PARRY, M.D., B.Sc. (Lond.). 196 pp. Demy 8vo. Price 7s. 6d. net. (Post free, 7s. 10d. home; 8s. abroad.) #Contents.# Occupations which are Accompanied by the Generation and Scattering of Abnormal Quantities of Dust -- Trades in which there is Danger of Metallic Poisoning -- Certain Chemical Trades -- Some Miscellaneous Occupations --Trades in which Various Poisonous Vapours are Inhaled --General Hygienic Considerations -- Index. #INDUSTRIAL USES OF AIR, STEAM AND WATER.# (p. c12) #DRYING BY MEANS OF AIR AND STEAM.# Explanations, Formulae, and Tables for Use in Practice. Translated from the German of E. HAUSRRAND. Two folding Diagrams and Thirteen Tables. Crown 8vo. 72 pp. Price 5s. net. (Post free, 5s. 3d. home; 5s. 6d. abroad.) #Contents.#