CLS Manual, Non-Cyanide Leaching
By Jim V. Humble, President 1981 and updated in 2016 by Michael C. Glenn, President of Action Mining Services Inc. 97 pages soft bound. This is a manual for every miner. A wealth of mining information including step by-step instructions on how to do fire assays, special ore treatments, leaching, free milling ores, complex ores, electro-precipitation, gold and silver refining and more. Written in easy to understand language with a glossary of mining terms. Even if you don’t use CLS, the book is valuable for its basics about mining.