INDEX. 



291 



Page. 



Fraction mine, faultsin 141-144,147 



faults in, figures showing 141-145,147,162 



gas in 94 



gold discovered in 27, 140 



oxidation in 91 



plan of 162 



rock from, analysis of 87 



water in 108 



shafts of, depth of 106, 140 



earlier andesite from, alteration of 221-222 



description of 214 



analysisof 216,221 



rocksof 147-148 



silver in 94-95 



veinsof 147-148 '. 



plan showing 162 



Fraction vein, character of 140,146 



discovery of , 27,140 



relations of Valley View vein system and 140, 187 



Fracture zones, development of, stages of 84-85 j 



Friedel and Sarasin, experiments by 228-229 



Fuel, expense of 28 



G. & H. mine, lava from, analysisof 67,60 



rhyolite from 61 



Galena, character of 88 



occurrence of 22,88 



GaJlionella granulata.-occurrence of 70 



marchica, occurrence of 70 



procera, occurrence of 70 



punctate, occurrence of 70 



sculpta. occurrence of 70 



tenerrima, occurrence of 70 



Gas, occurrence of 94, 188 



Geikie, A., on Antrim rocks 52-53 



Genth, F. A., on albite 212 



jentil, G. L., on feldspar alteration : 212 



Geological history, summary of 66-68, 109, 261-262 



Gold, depth and, relations of 124-128 



d iscovery of 21 



occurrence of 22, 89, 123, 287 



Gold Hill, erosion on 113 



faulting at 164 



rocksof 32,164-165 



alteration of 165 



sections of 166,167 



veins of 165-166 



Gold Hill fault, location of 164,184 



Gold Hill mine, relations of 186-187 



Gold Hill shaft, depth of 166 



water in 105-106 



Golden Anchor shaft, depth of 205 



rocks in 206 



water in 106 



Golden Mountain, characterof 44 



erosion on 113 



lava of, analyses of 57, 58, 60, 66 



cooling of, eddying in, figure showing 46 



rocksof 36,45,55,60-fi2 



section near, diagram showing 45 



Good Enough shaft, section on 166, 167 



Good Enough vein, characterof 165 



output of 166 



structure of 166 



Granite, occurrence and character of 30 



Page 



Great Basin, deformation in 80-81 



erosion in 111-112 



lavas of, succession of 68-69, 274 



metallographic province of 22,276-278 



petrographic province of 22, 274-275 



Gypsum, formation of 94 



H. 



Halifax shaft, later andesite from, analysisof. 57,241,244-247 



later andesite from, description of 239 



study of 244-248 



location of 205 



rocks in 205 



water in 105,205 



Healy, J. M., information from 152 



Heller Butte, character of 87 



erosion on 113 



rocks in 30, 37 



view of 38 



Heller dacite, age of 38 



character of 37-39 



occurrence of 30, 37 



Hillebrand, W. F., analyses by 87,89-90,92,103,241 



History, geological, summary of 66-68, 109 



Hobbs, W. H, diagram by 217 



Hornblende, alteration of 207 



occurrence of 63 



I. 



Igneous rocks, classification of 59 



occurrence of 21 



relative ages of 68-72 



Infusoria, occurrence of 69-70 



J. 



Japan, rocksof 280-282 



K. 



Kaolin, occurrence of 209 



Kawsoh Mountain, fossils from 70 



King, Clarence, on Miocene deposits 69-70 



King Tonopah shaft, depth of 106 



lava from, analysis of 64 



rocks and veins in 197-198 



L. 



Lake, ancient, location and history of 51-54, 67, 81 



Lavas, analyses of 57 



boundaries of 74 



characterof 21.31-66,56 



cooling of, eddying in, diagram showing 46 



occurrence of 31-66 



origin of, differentiation theory of 61-66 



relations of, diagrams showing 40, 41, 43-45, 48, 49, 53 



succession of 68-69 



water in 255 



Limestone, occurrence and character of 30 



Lindgren, W., on propylite 236 



Little Tonopah shaft, data concerning 199-200 



Lode porphyry, mention of 31 



See aim Andesite, earlier. 

 Lone Mountain, racks on 30 



M. 



Macdonald vein, characterof 174-175 



occurrence of 169 



section of, figure showing 174, 175 



