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Practical treatise hydraulic mining in California : with description of the use and construction of ditches, flumes, wrought-iron pipes, and dams: flow of water on heavy grades, and itsmapplicability. under high pressure, to mining /

Practical treatise hydraulic mining in California : with description of the use and construction of ditches, flumes, wrought-iron pipes, and dams: flow of water on heavy grades, an...

por Bowie, Aug. J. Jr.

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