Now the average person can safely and efficiently learn how to make and use leaching and recovery systems. A straight forward booklet with easy to read diagrams. 30 pages.
Written in simple language, fire ore and purify gold or silver safely. Covers the dangers, equipment and ingredients for firing, purifying and recovering. 32 pages.
Learn the old-timers way of assaying, firing and cupeling. How to safely and efficiently use nitric and aqua regia in separating gold and silver. A quick, to the point guide of "How To Do It Yourself". 34 pages.
A practical, simplified method of extracting free gold, by a man who has spent a lifetime searching to improve the methods of gold extraction. Color and fully illustrated. 61 pages.