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Hydraulic Mining in California

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Bowie. Hydraulic Mining in California.

Contents
Ch. 1: Records Gold-Washing
Ch. 2: Placer Mining
Ch. 3: Geology Calif.
Ch. 4: Gold Distribution/Value
Ch. 5: Gravel in Calif.
Ch. 6: Mining Gold Placers
Ch. 7: Preliminary Investigations
Ch. 8: Reservoirs Dams
Ch. 9: Flowing Water
Ch. 10: Ditches, Flumes
Ch. 11: Pipes, Nozzles
Ch. 12: Mechanical Appliances
Ch. 13: Blasting Banks
Ch. 14: Tunnels, Sluices
Ch. 15: Tailings, Dump
Ch. 16: Washing, Hydraulicking
Ch. 17: Gold Distribution
Ch. 18: Loss of Gold
Ch. 19: Miner's Inch
Ch. 20: Cost and Yield
Appendix
Index

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1 Page 038 First Mention of California.—The first mention of the name
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2 Page 011 CHAPTER I. THE RECORDS OF GOLD-WASHING. The records of gol
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3 Page 075 finer particles, when once allowed to dry, seem to become co
comment: finer particles, when once allowed to dry, seem to become covered with a film of air and to float readily on subsequent immersion in water. Prof. J. D. Dana considers that these deposits date from the close of the Glacial, and partly from the latter half of the Champlain period. As the tides continually alter the position of the exposed auriferous layers, it is necessary to prospect every day for the richest

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Hydraulic Mining in California