INDEX. 



645 



Pnge. 



Tertiary Period, veius of 8 



plants in tufa 17 



age of coal bearing rocks. 4G1 



Thatcher, J. A 493 



Thayer, F 97 



Theory of Washoe Process 2SG 



Thomas, Cyrus, cited 480 



Thomas, W. E., cited 480 



Tie Siding, fossil locality 4G0 



Timbering of shafts in Oomstock 



lode 103, 104 



Timbering of stopes 112 



Timbering, cost of, in Comstock 



lode 115 



Timbering shaft in Gregory mine . . 511 



Timoke mine, near Austin 356, 357 



fault in 354,355,356 



Tin, geological occurrence of 5 



Toyabe Range, geology of 320 



rocks 323 



agricultural re- 



its structure 325 



barometrical heights 



in 347 



mining districts of. 382 



Torrey, Doctor, cited 483 



Trachyte 18 



of the Virginia Eange 33 



hornblende variety 35 



distinguishing features as 

 compared with neighbor- 

 ing volcanic rocks 36 



Tramway, suspension 597 



Transylvania 396 



Treasure City 423 



altitude of 411 



Treasure Hill 422 



Treasure Hill Mining and Milling 

 Company 432, 437 



Page. 



Treasure Peak, altitude of 409 



Treglone mill 437 



Trench, mining claim on Comstock. 99 



Trinity Mountains : 297 



Trinity and Sacramento 297, 300 



Tritle, Hon. F. A 97 



Troy mine 369, 370 



Truckee Eiver 11 



Trust mine, on Bobtail lode 503 



Tunnels on Comstock mines 107 



cost of 109 



Tunneling in Colorado 594 



about Georgetown 603 



Tuttle, Sidney 301 



Twin Eiver Caiions 344 



mine 383 



altitude of 348 



Twin mine 189 



Tyrrell, Mr., cited 224 



Uintah Mountains 453 



Union, mining claim on Comstock 



lode 99 



Union mine, on Bates lode, Colo- 

 rado 521 



Union ville, Humboldt County, Ne- 

 vada 308 



Upton, on Chalk Creek 470 



Utah Basin, mean altitude of 2 



Utah, mining claim on Comstock 

 lode 99,167 



Valmont, Colorado 479 



Varuey's pan 218, 222 



Van Dyk mine 470, 471, 472 



Veins on Lander Hill 331 



about Georgetown, Colorado . 591 



Ventilation, in Comstock mines 131 



Vernon mill. White Pine 437 



Virginia and Truckee Eailroad 101 



Virginia City, C street, altitude of. 16 



