Assessments levied in the year 1873 upon the mines on the Comstock lode........ Assessments levied in 1873 upon mines in the Ely district..... Assessments levied upon mines located in outside districts, 1873. Avoidable wastes at American Smelting Works B. Belcher, report of.... Page. 374 393 379 453 79 490 474 344 428 527 5.9 532 536 538 558 490 187 Booming in Colorado.. Boston and Colorado Smelting Company. Brick condensing-chambers.. Brückner's cylinders.... Bullion, production of, in Nevada 301 286 391 496 201, 216 Desilverization by zinc, results of, at Lautenthal, Havre, and Call Desilverization of lead by zinc... Dezincification by chlorination.. Dezincification by distillation.. Dezincification by oxidation and scorification. Dividends for 1871. Dividends for 1872.. Dividends disbursed by mines upon the board-list for 1873. 232 47 471 177 409 423 523 496 13 512 15 3-0 4-1 475 336 310 Results obtained in settlers, agitators, and concentrators. Results of desilverization by zinc at Lautenthal, Havre, and Call.. Retorting Riotte's sublimator Ripa, Modena, quicksilver deposits of Roasting in furnaces.. Statement of mines in Grass Valley District, Nevada County, California. Statement of the Meadow Valley Mining Company. Statement of precious metals produced in 1873.. Statement of Raymond & Ely Mining Company Straining of quicksilver, cleaning of amalgam, and retorting. Page 413 482 414 401 380 384 449 167 415 425 429 505 4:29 416 420 490 304 436 510 128 235 521 238 520 414 401 162 20 100 411 398 |