A Practical Treatise on 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 Its Applicability, Under High Pressure, to MiningVan Nostrand, 1905 - 313 strani Thorough treatise on hydraulic mining. |
Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
alluvial alluvions amount auriferous banks bed-rock bottom bucket Butte County California cañons cement channel claim Coast Ranges construction cost Creek cubic feet cubic yards deposits depth discharge district ditch drift Eureka Lake feet deep feet high feet long feet per mile feet per second feet wide flume foot French Corral gold gold-fields gold-washing grade Grange granite gravel head height Hill hundred feet Hurdy-gurdy hydraulic mining inches in diameter iron La Grange length lower material Milton miner's inches miners miocene mountain Nevada County North Bloomfield nozzle obtained Pelton PELTON WHEEL pipe placed plank pliocene precious metal pressure box quantity quartz quicksilver reservoir riffles River rivets rocks sand seams shaft side Sierra Nevada sills slates slope sluices Smartsville South square stone streams thick thousand feet timber tion top gravel Total tunnel undercurrents velocity washed width yield Yuba