Gold Mines and Mining in California A New Gold Era Dawning on the State; Progress and Improvements Made in the Business; Perfected Methods, Processes and Machinery
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Description
Excerpt from Gold Mines and Mining in California: A New Gold Era Dawning on the State; Progress and Improvements Made in the Business; Perfected Methods, Processes and Machinery As remarked in the prospectus issued by the publishers of this book, we have at length so perfected the business of gold mining in California. Both as regards the methods, machinery and processes in use, that material of very low grade, whether quartz or gravel, can be handled with profit.