The precious metals comprising gold, silver and platinum

Description

The "Westminster" Series - London, Archibald Constable & Co. Ltd, 1909. - 295 p.In the preparation of this work, the aim has been to provide an introduction to the study of the precious metals, and an elementary book of reference for those who do not wish to pursue the subject further. With these objects in view details have been generally omitted and a wide extent of ground has been covered, including the technical processes of minting and the manufacture of gold and silver wares. It need hardly be mentioned, however, that all questions of currency and finance have been left untouched. It is also perfectly obvious that the book is not intended to be a substitute for the larger treatises on metallurgy, some of which devote the whole of a bulky volume to the full consideration of a section of the subject dealt with here in the course of a few pages.Contents History of gold Properties of gold Compounds of gold Alloys of gold The occurrence of gold in nature: gold ores Extraction of gold from its ores: gold washing Treatment of gold ores by crushing and amalgamation Treatment of gold ores by wet methods Silver and its alloys Compounds and ores of silver The extraction of silver from its ores Refining gold and silver The assay of gold and silver ores The assay of gold and silver bullion Minting Manufacture of gold and silver wares Platinum Production and consumption of the precious metals Index