CONTENTS.
Part I.—Alkalies and Alkaline Earth Metals: Magnesium, Lithium, Beryllium, Sodium, Potassium, Calcium, Strontium, Barium, the Carbides of the Alkaline Earth Metals.
Part II.—The Earth Metals: Aluminium, Cerium, Lanthanum, Didymium.
Part III.—The Heavy Metals: Copper, Silver, Gold, Zinc and Cadmium, Mercury, Tin, Lead, Bismuth, Antimony, Chromium, Molybdenum, Tungsten, Uranium, Manganese, Iron, Nickel, and Cobalt, the Platinum Group.
"Comprehensive and authoritative ... not only full of valuable information, but gives evidence of athorough insight into the technical value and possibilities of all the methods discussed."—The Electrician.
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In Large 4to, Library Style. Beautifully Illustrated with 20 Plates, many in Colours, and 94 Figures in the Text.
PRECIOUS STONES: Their Properties, Occurrences, and Uses.
A Treatise for Dealers, Manufacturers, Jewellers, and for all Collectors and others interested in Gems.
By Dr. MAX BAUER, Professor in the University of Marburg,
Translated by L.J. SPENCER, M.A. (Cantab.), F.G.S.
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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