638 



INDEX. 



Page. 



Marlette, S. H., surveyor general 98, 259 



Marshall's Cauon 329, 331 



altitude of 347 



Marshall mine, Colorado, iron ore 483, 484 



Marshall tunnel, Colorado 600, 605 



Martine, Charles, cited 613 



Materials consumed in Savage mine 



147, 148, 149, 150 



Matroclieilus 415 



Matt, i)roduction of in Colorado 586 



McCabe, claim on Burroughs lode. . 532 

 McClellan lode, Colorado, value of 



ores 612 



McCone's pan 219, 224 



Meek, Professor F. B., cited 416, 417, 452, 



458, 466 



Melantho 465 



Melting of crude bullion 202 



furnace for bullion 204 



Mendota, lode in Colorado 598 



Mercer County lode, Colorado 539 



Mercury, action of upon ore 275, 277 



loss of in Washoe process 292 



Metacom mill 375, 376, 381 



Metalliferous deposits, mode of oc- 

 currence 5 



Metalliferous deposits, age of 7 



zonal paral- 

 lelism of. . 8 

 Metallurgy of the Comstock ores . . 193 

 Colorado gold ores 577 

 silver ores at 

 Georgetown, Col- 

 orado 606 



MetamorpMc rocks of the Virginia 



Eange ... 19, 20 



Metamorphic rocks, age of 21 



Metropolitan mill. White Pine 437 



Mexico, veins of 7 



Page. 



Mexican, mine on Comstock 99,168 



ore-bodies of 63 



Miley and Abbey, mill 558 



Mills, general arrangement of 229 



relation of to mines at Washoe 237 



for custom work 238 



price for milling 238 



Milling results 241 



at Eeese Eiver 376 



cost of 380 



MiUs at Belmont. ... 401 



Milling in Colorado , 548 



Mills in Colorado, details of 549 



capacity of 654 



Milling, cost of in Colorado 558 



results of 560 



percentage of value in ore 



saved by 560 



desired improvements in 567, 568 

 Mills of Gilpin County, Colorado, 



operations of 574, 576 



Mill City 308 



Miller's mill, White Pine 437 



Minerals in Comstock lode. . . 75, 92, 273 

 arrangement of in Ophir 



bonanza 83 



of accidental occurrence . . 82 



Mineral Hill district 407 



Miner's inch of water 217 



Mining districts, distribution, &c . . 1 



Mining costs on Comstock 150, 152 



in Gould and Curry . . 152 



Savage 153 



Hale and Norcross 



153, 154 



ChoUar-Potosi 155 



Imperial 158 



Manhattan mine, 



Austin 362 



