Originally Published in 1911 we chose to reprint this classic text because of its short and concise descriptions for recovering some of the more important metals such as Gold, Silver, Platinum plus 14 others. Covers mechanical means of recovery, chemical means of recovery, and Electrolytic means of recovery. Great text and must have in every Chemist, miners, and prospectors library. Another book in our Metallurgy series back in print by Miningbooks.com