Statistics of Mines and Mining in the States and Territories West of the Rocky Mountains, Količina 2U.S. Government Printing Office, 1870 |
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Zadetki 1–5 od 100
Stran 4
... deep wells for water and oil .. LXIX . Boring large mining shafts .. LXX . Machines for cutting out coal .. SECTION III . TRANSPORTATION , VENTILATION , ETC. Chapter LXXI . Tramways and wagons LXXII . Hoisting machinery and apparatus ...
... deep wells for water and oil .. LXIX . Boring large mining shafts .. LXX . Machines for cutting out coal .. SECTION III . TRANSPORTATION , VENTILATION , ETC. Chapter LXXI . Tramways and wagons LXXII . Hoisting machinery and apparatus ...
Stran 32
... deep . In some of the upper levels important discoveries of valuable ore have also been made . The Badger shaft has been sunk over four hundred feet since last year , so that it is now one hundred and fifty feet deeper than the lowest ...
... deep . In some of the upper levels important discoveries of valuable ore have also been made . The Badger shaft has been sunk over four hundred feet since last year , so that it is now one hundred and fifty feet deeper than the lowest ...
Stran 43
... Deep Shaft .... Bradley & Gardner Gravel , Hydraulic . Gross expenses . Net profits . receipts . Gross $ 2,385 42 6 , 130 59 $ 2,088 98 $ 4 , 474 40 140 96 6,271 58 Remarks - Home Ticket , Gold Ran district , 42 days ' run ( water , 300 ...
... Deep Shaft .... Bradley & Gardner Gravel , Hydraulic . Gross expenses . Net profits . receipts . Gross $ 2,385 42 6 , 130 59 $ 2,088 98 $ 4 , 474 40 140 96 6,271 58 Remarks - Home Ticket , Gold Ran district , 42 days ' run ( water , 300 ...
Stran 64
... deep , and they are separated by ridges which are from three to six miles apart , and are as high as the cañons are deep . The Blue Lead runs across these ridges from two hundred to one thousand feet below their summits . The traveler ...
... deep , and they are separated by ridges which are from three to six miles apart , and are as high as the cañons are deep . The Blue Lead runs across these ridges from two hundred to one thousand feet below their summits . The traveler ...
Stran 65
... deep with gravel ? When the miners in 1850 , 1851 , and 1852 , flumed the live riv- ers of California , and took the gold from their beds , they found a deposit of gravel that did not average more than five feet deep on the bed rock ...
... deep with gravel ? When the miners in 1850 , 1851 , and 1852 , flumed the live riv- ers of California , and took the gold from their beds , they found a deposit of gravel that did not average more than five feet deep on the bed rock ...
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Pogosti izrazi in povedi
Alpine County amalgamation amount apparatus arrastras assay average Bannack battery bottom bullion cable California Cañon Cañon City cents chloride claims coal Comstock lode contains copper cost country rock County Creek crushing cylinder deposits depth diameter ditch dollars drift drill east engine explosion extension feet deep feet wide fissure five furnace galena giant powder gold granite Grass Valley gravel Gulch hoisting hole horse-power hundred feet inches iron iron pyrites July labor ledge length lode machine metal metres miles mill miners Mining Company mining district Mountains Nevada opened operations owners patent Pinos Altos piston placer mining pounds pump pyrites quantity quartz quicksilver railroad Reese River reported rich roasting rock running shaft side silver slate smelting stamps steam sulphurets surface Territory tion tons Treasure Hill trepan tunnel Valley valve vein vertical weight White Pine width yield
Priljubljeni odlomki
Stran 425 - That whenever any person or association of persons claim a vein or lode of quartz, or other rock in place, bearing gold, silver, cinnabar, or copper...
Stran 425 - That no location hereafter made shall exceed two hundred feet in length along the vein for each locator, with an additional claim for discovery to the discoverer of the lode, with the right to follow such vein to any depth with all its dips, variations, and angles, together with a reasonable quantity of surface for the convenient working of the same, as fixed* by local rules.
Stran 327 - He never reached his home, however, and was supposed to have been killed by the Indians. Thirteen years elapsed, when a party of forty men arrived here. They prospected the whole length of the Sweetwater, found gold everywhere in the river as well as in all of its tributaries, and turned the main stream from its channel 400 yards.
Stran 425 - ... enter such tract and receive a patent therefor, granting such mine, together with the right to follow such vein or lode with its dips, angles, and variations to any depth, although it may enter the land adjoining, which land adjoining shall be sold subject to this condition.
Stran 425 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and purchase, and the lands in which they are found to occupation and purchase, by citizens of the United States...
Stran 425 - That the mineral lands of the public domain, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and occupation by all citizens of the United States, and those who have declared their intention to become citizens, subject to such regulations as may be prescribed by law, and subject also to the local customs or rules of miners in the several mining districts, so far as the same may not be in conflict with the laws of the United States.
Stran 327 - Gold in the Sweetwater District was first discovered in 1842 by a Georgian who came here with the American Fur Company for the recovery of his health. After remaining a year he started home, intending to organize a company and bring them here to work the mines.
Stran 425 - ... file in the local land office a diagram of the same, so extended laterally or otherwise as to conform to the local laws, customs, and rules of miners, and to enter such tract and receive a patent therefor, granting such mine...
Stran 627 - Each size will break any stone, one end of which can be entered into the opening between the jaws at the top. The size of the machine is designated by the size of this opening; thus, if the width of the jaws be 15 inches, and the distance between them at the top 9 inches, the size is called 15 by 9.
Stran 653 - The quantity of water used per stamphead in crushing varies from 720 gallons to 11,520 gallons per diem of 24 hours. The quantity of mercury used in the ripples per stamper is from 5 to 70 pounds.