Chapter 46

Mercury, Tin, Lead, Bismuth, Antimony, Chromium, Molybdenum, Tungsten, Uranium, Manganese, Iron, Nickel, and Cobalt, the Platinum Group.

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~PRECIOUS STONES: Their Properties, Occurrences, and Uses.~

_A Treatise for Dealers, Manufacturers, Jewellers, and for all Collectors and others interested in Gems._

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GENERAL CONTENTS.--General Properties of Gems: Their Natural Characters, Occurrence, Application, and Uses.--Detailed Description of Particular Gems: The Diamond, Rubies, Sapphires; Emeralds, Tourmalines, and Opals; Felspars, Amphiboles, Malachite.--Non-mineral Gems: Amber, &c.--Optical Features, Transparency, Translucency, Opacity, Refraction and Dispersion, &c.--APPENDIX: Pearls; Coral.

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~The Art of the Goldsmith and Jeweller A Manual on the Manipulation of Gold and the Manufacture of Personal Ornaments.~

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ASSISTED BY J.H. STANSBIE, B.SC. (LOND.), F.I.C., Lecturer at the Birmingham Municipal Technical School.

* * * * *

GENERAL CONTENTS.--Introduction.--The Ancient Goldsmith's Art.--Metallurgy of Gold.--Prices, &c.--Alloys.--Melting, Rolling, and Slitting Gold.--The workshop and Tools.--Wire Drawing.--Rings.--Chains and Insignia.--Antique Jewellery Work.--PRECIOUS STONES.--Cutting.--Polishing and Finishing.--Chasing, and its Revival.--Etruscan Embossing, and Repoussé Work.--Colouring and Finishing.--Enamelling.--Engraving.--Moulding and Casting Ornaments, &c.--Fluxes. &c.--Recovery of the Precious Metals.--Refining and Assaying.--Gilding and Electro Deposition.--Hall-Marking.--Miscellaneous.--Appendix.

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~Griffin's Chemical and Technological Publications.~

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_For Metallurgy and Electro-Metallurgy, see previous Section._

PAGE ~Inorganic Chemistry~, PROFS. DUPRÉ AND HAKE, 70 ~Quantitative Analysis~, PROF. HUMBOLDT SEXTON, 70 ~Qualitative "~ " " 70 ~Chemistry for Engineers~, BLOUNT AND BLOXAM, 71 ~" " Manufacturers~, " " 71 ~Foods, Analysis of~, A. WYNTER BLYTH, 72 ~Poisons, Detection of~, " " 72 ~Tables for Chemists and Manufacturers~, PROF. CASTELL-EVANS, 79 ~Agricultural Chemistry~, PROF. J.M.H. MUNRO, 75 ~Dairy Chemistry~, H. D. RICHMOND, 73 ~Milk~, E.F. WILLOUGHBY, 73 ~Flesh Foods~, C.A. MITCHELL, 73 ~Practical Sanitation~, DR. G. REID, 78 ~Sanitary Engineering~, F. WOOD, 78 ~Technical Mycology~, LAFAR AND SALTER, 74 ~Ferments~, C. OPPENHEIMER, 74 ~Brewing~, DR. W.J. SYKES, 75 ~Sewage Disposal~, SANTO CRIMP, 76 ~Trades' Waste~, W. NAYLOR, 76 ~Cements~, G.R. REDGRAVE, 76 ~Water Supply~, R.E. MIDDLETON, 77 ~Road Making~, THOS. AITKEN, 79 ~Gas Manufacture~, W. ATKINSON BUTTERFIELD, 77 ~Acetylene~, LEEDS AND BUTTERFIELD, 77 ~Fire Risks~, DR. SCHWARTZ, 77 ~Petroleum~, REDWOOD AND HOLLOWAY, 61 ~---- (Handbook)~, THOMSON AND REDWOOD, 61 ~Oils, Soaps, Candles~, DR. ALDER WRIGHT, 81 ~Lubrication and Lubricants~, ARCHBUTT AND DEELEY, 32 ~India Rubber~, DR. CARL O. WEBER, 81 ~Painters' Colours, Oils, and Varnishes~, G.H. HURST, 80 ~Painters' Laboratory Guide~, " " 80 ~Painting and Decorating~, W.J. PEARCE, 80 ~Photography~, A. BROTHERS, 21 ~Dyeing~, KNECHT AND RAWSON, 82 ~Dictionary of Dyes~, RAWSON, GARDNER, AND LAYCOCK, 82 ~Textile Printing~, SEYMOUR ROTHWELL, 83 ~Textile Fibres of Commerce~, W.I. HANNAN, 83 ~Dyeing and Cleaning~, G.H. HURST, 84 ~Bleaching and Calico-Printing~, GEO. DUERR, 84

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~A SHORT MANUAL OF INORGANIC CHEMISTRY.~

BY A. DUPRÉ, Ph.D., F.R.S.,

AND

WILSON HAKE, Ph.D., F.I.C., F.C.S., Of the Westminster Hospital Medical School

THIRD EDITION, Revised, Enlarged, and Re-issued. Price 6s. net.

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~LABORATORY HANDBOOKS BY A. HUMBOLDT SEXTON,~

Professor of Metallurgy in the Glasgow and West of Scotland Technical College.

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~OUTLINES OF QUANTITATIVE ANALYSIS.~

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~ELEMENTARY METALLURGY:~ Including the Author's Practical Laboratory Course. With many Illustrations. [See p. 66.

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~CHEMISTRY FOR ENGINEERS AND MANUFACTURERS.~

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BERTRAM BLOUNT, F.I.C., F.C.S., Assoc.Inst.C.E., Consulting Chemist to the Crown Agents for the Colonies.

AND

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JUST OUT. FIFTH EDITION, Thoroughly Revised, Greatly Enlarged and Re-written. With additional Tables, Plates, and Illustrations. 21s. ~FOODS: THEIR COMPOSITION AND ANALYSIS.~

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~DAIRY CHEMISTRY FOR DAIRY MANAGERS, CHEMISTS, AND ANALYSTS~

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