Correspondence, information obtained by. Cost of mining and reducing ores in Beaver Head County, Montana.. Cost of Sutro Tunnel, estimates of... Diamond drill, important application of, at Saint Clair, Pennsylvania. Page. 7 265 152 .34, 63, 116 32 32 165 32 32 4 14 101 8 119 55 53 25 37 41,482 42 Economical results in the treatment of gold and silver ores by fusion 410 Endless wire-rope tramways... 498 El Dorado County, California, deep placers of. 101 El Dorado County, California, project of California Water Company to draw water Page. Expenses, estimate of..... Experiments, at French Corral, to test yield of gravel.. Exports, combined....... Eureka Consolidated Mining Company, Nevada, report of Eureka Company, Nevada County, California, report of.. Evans & Frey's undercurrent sluice. Experiments, at French Corral, to test expense of treatment by mill-process. Exports, treasure.... Extent of mining estates in California.. Formation of gravel deposits, California... French Corral, experiments at, to test yield of gravel... French Corral, experiments to test expense of treatment by mill-process.. Fuel for lead-smelting. Furnace, Ambler's blow-pipe Furnace, blast Fusion, economical results in the treatment of gold and silver ores by.. G. 10 386 7 26 11 384 53 55 9 385 39 387 441 407 395 381 381, 390 170, 441 383 410 Gold, chunks of, paid by Chinamen in Placer County, California. Hydraulic claims, Calaveritas district, Calaveras County, California Hydraulic enterprises in California.... 159, 161 460,482 499 120 Lake Tahoe, California, project of Colonel J. W. Von Schmidt to take water from. Lands (mineral) and quartz-ledges, sale of...... Large yields, strikes, nuggets, &c.... Law, mining Lead-ores, (argentiferous,) smelting of, in Nevada, Utah, and Montana.. Ledges (quartz) and mineral lands, sale of... Lehigh University, School of Mining and Metallurgy of.... Lend, Austria, amalgamation at.... Lend, Austria, smelting at... Lend, Austria, tables of operations at. Lend, Austria, treatment of ore at.. Lignites of the West, metallurgical value of.. Limestone belt, California Limestone cave, Calaveras County, California Lode (mother) of California... 460, 479 113 23 44 26 453 379 44 460, 480 411 412 414 411 441 56 78 47,84 Meteorology of California Mill, quartz, Crocker's trip-hammer.. Mills in California, capacity for crushing quartz. Mill process, experiment at French Corral to test the expense of treatment by Mills, quartz, and mining-ditches, statistics of, California Mills, quartz, list of, Tuolumne County, California Mineral lands and quartz-ledges, sale of. Mines, Columbia College School of.. Mines, quartz, near Mokelumne Hill, California. Mines, southern, of California Page. 460 447 11 10 29 32 33 45, 46 69 44 460, 465 82 46 Mining and metallurgy, American schools of... Mining and reducing ores in Beaver Head County, Montana, cost of. Mining Commissioner, faulty distribution of reports of... Mining enterprises, remarks on disasters in Mining estates, extent of, in California Mining, gravel, in California 148 15 460 265 10 34 7 47 45, 56 13 16 51 Mining industry, condition and prospects of. 3 Mining industry, condition of the 6 Mining industry in Arizona, condition of.. 331 Mining industry in Colorado, condition of. 840 Mining industry in Idaho and Oregon, condition of 250 Mining industry in Montana, condition of.... 258 Mining industry in Nevada, condition of... 141 Mining industry in New Mexico, condition of.. 337 Mining industry in Utah, condition of. 300 Mining industry in Wyoming, condition of.. 367 Mining in Table Mountain, California 63 Mining interest in California, condition of the. 9 North Star Company, Placer County, California, report of.. 123 .32 Nugget from claim of Bunker & Co., Oregon Nugget from Fields's claim, Nevada County, California Objects of commission, indifference to 0. Operations and improvements, recent, in California Ore, device for transportation of, in mountainous regions Ore, treatment of, at Lend, Austria.... Oregon and Idaho, condition of mining industry in Ores, (argentiferous lead,) smelting of, in Nevada, Utah, and Montana. Ores, copper-lead.... Ores, (gold,) amalgamation of.... Ores, (gold and silver,) economical results in the treatment of, by fusion.. Ores of native silver, treatment of, in Chihuahua Ores, (silver,) amalgamation of, in pans, with the aid of chemicals Ores, (silver,) in Chili, reduction of Ores, (smelting,) classification of... Ores, (western,) adaptability of Austrian process to Oven, Belgian.. 7 21 15 414 35 411 250 379 402 422 410 434 427 439 393 418 445 445 Pittsburgh mine, Nevada County, California, report on.. Placer County, California, chunks of gold paid by Chinamen in. Project of Colonel J. W. Von Schmidt to take water from Lake Tahoe, California. 23 |