Publishers: Sylvanite Publishing
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Hydraulic and Placer Mining — Eugene B. Wilson
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Placer Gold Recovery Methods — Michael Silva
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Placer Examination Principles and Practice — John H. Wells
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The Mining Districts of the Idaho Basin and the Boise Ridge, Idaho — Waldemar Lindgren
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Placer Gold Deposits of Utah — Maureen G. Johnson
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The Sampling and Assay of the Precious Metals — Ernest A. Smith
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Gold Deposits of Georgia — S. P. Jones
