INDEX 



Page 



Accessory iiiimnals in granite 3:18 



giaiiitcporpliyry 341. 34.''> 



hurnbleude-inira-aiulo-site 364 



lavas 262 



Acid and ba.sic magmas 254 



AdaniH Hill, description 117 



mines 296 



Agate Pass 181 



Weber cougloutcrate 92 



AUinnilira Hills 25 



basalt 3G4,39l 



description 153 



Allanile ill granite 337,338 



graniteporplixrv 341 



lavas 262 



rbyolito.. ,. 3^9 



rhyolitic pnnu. . 381 



Alpha fault 159,160 



Peak, altitude 4 



region of - 159 



Ilidge, description 28 



Ampbitliijiter in Water Cauyc.i, 158 



Analyses of Washoo roeks 282 



andesitic pearlito 264 



ba.salt, BasaltPcak 264 



Richmond Mountain 264 



Washo 



282 



Cambria!! iron oi-e 37 



liinestone. Bell shaft 37 



Pott's Chamber 37 



Tip Top incline 37 



coal 98 



dacite 264 



Washoe 282 



granite-porphyry 228 



Hamburg Ii!nestone 40 



hornblende-andesite, Washoe 283 



hoimblende-!iiica-aiidesite 264 



Washoe 282 



hyperathe!!e 356 



Kelly ore 313 



Lone ^[u!i!!tain lii!!estonc 58 



Loi-d Byron ore 313 



I'ogonip liinestone 49 



Pro8i>ect Mimiitaii! limestone 37 



pyroxe!!ea!idisite 264, 266 



rh y oli tc 264 



WashoB 282 



Kuby Hillure 312 



Pagei 



Ancient coast line i76 



Andesite, altvratio!! pi*oducts 2:14 



Alldesitcs at Washoe 262 



relative ago of 276 



Andesitic pearlito 234, 368 



and dacite, modi&cations. it J I-3< 3 



Anorthito in pyroxeneandesite 210 



volca!ii<* rocks 354 



Anticline in Fish Creek Monutains 210 



Newark Mountain 156, 210 



Pifloii Rai!ge 201 



Prosiiect Kidge 20 



Weber conglo!!!erat»' 162 



west of Wood Cone 123 



Antin!Ony in Kuby Hill ore 312 



Apatite iti aiiilcsitie-pearlite and dacite 370 



gran i to ,337, 338 



granite-porphyry 345 



hornblende-mica-andesite 367 



lavas 262 



pjToxene-andesite 359 



Argillaceous iMilsat Kureka 178 



Arsenic in Kuby Hill ore 312 



Arteniesia tridentata 3 



A try pa Peak, .alt itude 4 



section across 65 



structure 22, 125 



Augitc-andesite (pyroxeno-andesite) 233, 239 



Augite in andesitic pearlite and dacite 370 



basalt 387, 394 



pyroxenc-andcsitu 356 



B. 



Bald Mountain Coal Company 97 



coal seams 95, 97 



Banded rhyolite 379 



Basalt and Rhyolite 285 



Basalt, augite in 387, 394 



cutting pyToxene-andesite 252 



distinguishing characteristics 392 



fcldsi)ar in 386, 393 



hyperstUene in 387, 394 



magnetite in 390 



mica in 394 



microscopical characters 386 



mineral composition 242 



oli vim- in 387, 393 



penetrating rhyolite 253 



piedmontite in 393 



Iiyroxeue in 387 



407 



