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> Assayer's guide how to book
Assayer's guide how to book
Practical Directions to Assayers, Miners, and Smelters, for the Test and Assay by Heat and Wet Processes of the Ores of All the Principal Metals of Gold and Silver Coins and Alloys and of Coal Etc.
A reprint of a book first written in 1852. Lots of interesting long lost how-to stuff.
* Description of implements and utensils used
* Assay of ores by heat-cupellation
* A table to rectify the loss in the silver assay
* Gay-Lussac's process for silver alloys
* Assay of gold ores by heat-quartation
* Assay of silver coins, or alloys of silver and copper
* Assay of gold coins, or alloys of gold, silver, and copper
* To find the proportion of gold in a mixture of gold and quartz, by calculation
Assay of copper ores by the German or Hungarian method * Assay of copper ores by the English method
* Assay of lead ores by heat
* Assays of iron ores by heat
* Fuchs's process for iron ores and iron
* Assays of Sulphurets in ores
* Modes of testing the calorific power of coal and other fuels
