Monographs of the United States Geological Survey, Τόμος 4U.S. Government Printing Office, 1883 Some nos. accompanied by atlases. |
Περιεχόμενα
| 1 | |
| 14 | |
| 26 | |
| 33 | |
| 56 | |
| 77 | |
| 90 | |
| 97 | |
| 216 | |
| 230 | |
| 243 | |
| 263 | |
| 278 | |
| 301 | |
| 322 | |
| 336 | |
| 108 | |
| 128 | |
| 172 | |
| 181 | |
| 197 | |
| 206 | |
| 355 | |
| 389 | |
| 407 | |
| 415 | |
| 447 | |
Άλλες εκδόσεις - Προβολή όλων
Monographs of the United States Geological Survey, Τόμος 23 Geological Survey (U.S.) Πλήρης προβολή - 1882 |
Monographs of the United States Geological Survey, Τόμος 17 Geological Survey (U.S.) Πλήρης προβολή - 1892 |
Monographs of the United States Geological Survey, Τόμος 47 Geological Survey (U.S.) Πλήρης προβολή - 1904 |
Συχνά εμφανιζόμενοι όροι και φράσεις
April August barren Belcher Big Bonanza body Bullion cage camp Carson Carson River cents City Territorial Enterprise claims Comstock Lode Comstock Mines Consolidated Virginia Mining contest cost County Crown Point December depth dividends drift engines February feet foot Francisco Evening Bulletin gallons Gold Cañon Gold Hill Gould & Curry Grosh Hale & Norcross Ibid January July June labor ledge March mill miners Mining and Scientific Month Mount Davidson mountain November October Ophir Company Ophir Mining ore-body paid Philip Deidesheimer Potosi Company pounds Price profits prospectors pumps quartz record reduced rich rock Sacramento Union San Francisco Savage September shaft shares Sierra Nevada speculators Stewart stockholders Storey County suit superintendent supply surface Sutro Tunnel Sutro Tunnel Company Territorial Enterprise timbers tons Total number Utah valley vein Virginia City Virginia City Territorial Virginia Mining Company wages Washoe Weekly Stock Circular William Yellow Jacket
Δημοφιλή αποσπάσματα
Σελίδα 88 - ART. 14. There shall be a recorder elected, to hold his office for the term of twelve months, who shall be entitled to the sum of fifty cents for each claim located and recorded. " ART. 15. The recorder shall keep a book with all the laws of this district written therein, which shall at all times be subject to the inspection of the miners of said district ; and he is furthermore required to post in two conspicuous places, a copy of the laws of said district.
Σελίδα 212 - ... working of the mines is done without any system as yet. Most of the companies commence without an eye to future success. Instead of running a tunnel from low down on the hill, and then sinking a shaft to meet it, which at once insures drainage, ventilation, and facilitates the work by going upwards, the claims are mostly entered from above and large openings made, which require considerable timbering, and exposes the mine to all sorts of difficulties.
Σελίδα 396 - ... dry-bulb temperature of 90°, or even 100°, and in hot climates with very dry air much higher temperatures are not oppressive." Eliot Lord 6 discusses the permanent effect of high heat upon the system, and reaches the following conclusion : "The ultimate effect of this extreme heat on the miners' constitution is not so easily noted. The mine levels differ so materially in temperature, and the assigned station of a miner is so frequently changed from one cause and another, that it is impossible...
Σελίδα 205 - ... profoundly feel the necessity for a more united and earnest effort on the part of our associations to care for the morals and habits of the young men of America. CHARLES E.
Σελίδα 385 - That endeavor was desperately hard. "View their work!" wrote Eliot Lord of Nevada's Comstock mine, rich in silver and lead. "Descending from the surface in shaft-cages, they enter narrow galleries where the air is scarce respirable. By the dim light of their lanterns a dingy rock surface, braced by rotting props, is visible. The stenches of decaying vegetable matter, hot foul water and human excretions intensify the effects of the heat.
Σελίδα 42 - Whereas, the isolated position we occupy, far from all legal tribunals, and cut off from those fountains of justice which every American citizen should enjoy, renders it necessary that we organize in body politic for our mutual protection...
Σελίδα 43 - Sec. 7. Evidence of record of claims shall be considered title in preference to claims that are not recorded, nor shall the recorder record more than one hill, dry gulch or ravine claim, in the name of an individual, unless the same has been purchased.
Σελίδα 308 - ... four hundred feet above, and everywhere men were at work in changing shifts, descending and ascending in the crowded cages, clambering up to their assigned stopes with swinging lanterns or flickering candles, picking and drilling the crumbling ore, or pushing lines of loaded cars to the stations at the shaft. Flashes of exploding powder were blazing from the rent faces of the stopes; blasts of gas and smoke filled the connecting drifts; muffled roars echoed along the dark galleries, and at all...
Σελίδα 44 - SEC. 19. Any and all persons locating for mining purposes shall have the same duly recorded within ten days from the time of locating. SEC. 20. Resolved, That the above rules and regulations shall be signed by the citizens of this district and all who may locate hereafter.1 In accordance with these regulations a justice of the peace and constable were duly elected.
Σελίδα 305 - ... learn that Mackay and his associates were developing their new property conservatively. It had not been the intention to go to the heavy expense of installing new machinery in order to sink the shaft deeper unless ore was found below; although Lord states (p. 309) that as soon as the Firm took control, "under the direction of James G. Fair, a large shaft was at once projected and the work of sinking rapidly pushed.