THE ANALYSIS OF MINERALS AND ORES OF THE RARER ELEMENTS. CHARLES GRIFFIN COJS PUBLICATIONS. Second Edition. Thoroughly Revised and greatly enlarged. In Large 8vo. Cloth. With 217 Illustrations, including 5 Folding Plates. Pp. i-xxxi5S8. 25s. net. THE NON-FERROUS METALS. By PROF. WM. GOWLAND, F.R.S., A.R.S.M. Emeritus Professor ofMetallurgy at the Royal School ofMines, London. CONTENTS. Refractory Materials Roasting Fluxes and Slags Copper Lead Silver Gold Platinum Mercury Zinc Cadmium Tin Nickel Cobalt Antimony Arsenic Bismuth- Aluminium INDEX. Will, ispofacto, be regarded by readers as a standard metallurgical work. Mining World. Sixth Edition. Thoroughly Revised. Re-set on Larger Page. Pp. i-xix601. With 223 Illustrations. 25s. net. THE METALLURGY OF GOLD. By SIR T. KIRKE ROSE, D.Sc. Lond., Assoc. R.S.M., Chemist and Assay er of the Royal Mint. CONTENTS. Physical and Chemical Properties of Gold Alloys of Gold Chemistry of the Compounds of Gold Occurrence and Distribution Shallow Placer Deposits Deep Placer DepositsOre Crushing in the Stamp Battery Amalgamation in ditto Other Forms of Crushing and Amalgamation Machinery Fine Grinding Concentration in Gold Mills Dry Crushing Roastine Chlorination The Cyanide Process, Chemistry, Methods, and Practice Refining and Parting of GoldBullion Assaysof Gold Ores-OfGold Bullion Statistics Bibliography INDEX. We UNRESERVEDLY commend the book as being indispensable, not only to students, but also, and especially, to all who are practically engaged in the metallurgy of gold. Nature. In Medium Svo. Cloth. Pp. i-xv450 With 166 Illustrations. 18s. net. THE SAMPLING AND ASSAY OF THE PRECIOUS METALS COMPRISING GOLD, SILVER, AND PLATINUM, IN ORES, BULLION, AND PRODUCTS. By ERNEST A. SMITH, A.R.S.M., M.Iust.M.M., Deputy Assay Master of the Sheffield Assay Office, late of the Royal School of Mines. CONTENTS. Introduction Design and Equipment of Assay Offices Furnaces and Appliances Precious Metal Ores Valuation of Ores Sampling of Ores Preparation of Samples for Assay Fluxesand Principles of Fluxing Assay Operations a Roasting b Fusion c Scorification d Cupellation Systems of Working Assay of Gold and Silver Ores Of Complex Ores- Calculating and Reporting Results Special Methods of Ore Assay Bullion Valuation of Bullion Sampling of Bullion Assay of Gold, Silver, and Base Bullion Of Auriferous and Argentiferous Products Assay Work in Cyanide Mill Platinum and the Platinum MetalsAssay of Platinum in Ores, Bullion, acd Products APPENDICES INDEX. May safely be placed inithe hands of students, and will be of the greatest value to assayers as a book of reference. Nature. Unique . . . the book should be added to the mining engineers library. Mining World. Fourteenth Edition. Pp. i-xvi459. With Illustrations. Cloth, 10s. 6d. A TEXT-BOOK OF ASSAYING For the use of Students, Mine Managers, Assayers, etc. By J. J. BERINGER, F.I.C., F.C.S., and C. BERINGER, F.C.S., Late Public Analystfor and Lecturer to the Late ChiefAssayer to the Rio Tinto Mining Association of Cornwall. Copper Company, London. GENERAL CONTENTS. PART I. INTRODUCTORY MANIPULATION Sampling, Drying, Calculation of Results Laboratory Books and Reports METHODS Dry Gravimetric Wet GravimetricVolumetric Assays Titrometric, Colorimetric, Gasometric Weighing and Measuring- Reagents Formulae, Equations, etc. Specific Gravity. PART II. METALS Detection and Assay of Silver, Gold, Platinum, Mercury, Copper, Lead, Thallium, Bismuth, Antimony, Iron, Nickel, Cobalt, Zinc, Cadmium, Tin, Tungsten, Titanium, Manganese, Chromium, etc. Earths, Alkalies. PART III. NON-MKTALS Oxygen and Oxides The Halogens Sulphur and Sulphates- Arsenic, Phosphorus, Nitrogen Silicon, Carbon, Boron Useful Tables. A RKALLY MERITORIOUS WORK that may be safely depended upon either for systematic instruction or for reference. Nature. Fifth Edition. In Large Crown. With Illustrations. Pp. i-xii342. 9s. net. PRACTICAL ASSAYING...