About This Book
A practical survey of mining in California that outlines the state’s metal resources and contrasts placer and quartz deposits while explaining techniques such as panning, washing, grinding, and amalgamation with mercury. It emphasizes water as the essential agent forplacer work and describes tools and simple mechanical operations, then classifies placers by depth and topography (hills, benches, bars, river-beds, ancient channels, and gulches). The text presents production and export figures, offers an estimate of aggregate yield, compares local conditions with other regions, and assesses trends, noting a gradual decline in gold output alongside growing attention to other minerals.
About the Author
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