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amount appear auriferous Aymarás batea bed-rock beds Bolivia bulletin caca canal capital cent Chagres chute claim company's concentration concession continued Cordillera cost cubic meters Culebra deposits district dividends Eastern Empire Engineering and Mining entire expense feet grade Grass Valley Grass Valley mines ground ground sluices hoisting-works Idaho Indians industry interest isthmus La Paz lake LAKE TITICACA latter Lesseps lode Mapiri miles milliard millions frs mineral mining enterprises Mining Journal mining operations Mollendo navigation North Star ore-dressing Oruro Pacific Panama Pelton wheel pertenencias Peru pipe placer placer mines plant Playa Potosi precious metal production profit proper pulp Puno pyrites quartz Quichuas region reports rich running San Francisco scale silver sluices soil Sorata South American strike and dip successful Suez sulphuret surface tain tion Titicaca tons traffic vanner vein geology veins width York
Popular passages
Page 45 - The claimant is owner of, and may work to an unlimited depth, all the ground, veins, deposits, and mineral occurrences within his surface claim and within the vertical planes passed through all the surface boundary lines of such claim.
Page 42 - ... before the California State Geological Society, set forth its advantages and describe its use : Batea is the name given to the gold-washer's bowl, or vanning dish, used in the placer and gold mines of Brazil ; a small implement, which affords the most simple method of separating, on a limited scale, the grains of gold from the dirt, sand, pyritic matter, magnetic iron, etc. The form of the batea in common use in Brazil is a circular, shallow, wooden dish, or bowl, rudely fashioned with an adze...
Page 38 - Republic, has been for some time undetermined; hence the main outlets for Bolivian trade are through Chilian, Peruvian, and Argentine territory. The most accessible port of the former is...
Page 101 - Graphically represented, a mine's life is something after the fashion of a crescendo with a corresponding decrescendo...
Page 77 - With the exception of the mill, the entire plant can be run either by steam or water, and can be changed from one to the other in a few minutes
Page 52 - Titicaca, which is at once the largest lake in South America and the highest in the world...