862 



INDEX. 



Pafie. 

 AuteroCaHoD, TXinta Range, TVeberQnsrtzite athead 301 



Auticlinal axis of Bitter Cieek Uplift 234 



of Uiuta Eange. 2E6, 257, 258, 267, 323 



in StarPealcTriassic, Pab-UteKange 710 

 Willow Creek Cafion, Piflon Range 554 



Anthracite in Walisatcb limestone t99, 604, C19 



Antimony CiBon, Augusta Mountains, augite-ande- 



sUe C54 



Antler Peak, Battle Mountains, altitude 666 



Upper Coal-Measure limestone 669 



Aqci Mountains 456 



Terrace lines 460 



Archiean, Crawley Butte, North Park 127,135 



cyanite in 270 



Fault Canon, "Wahsatcb Range 395 



Fr6mont's Island, Salt Lake 425 



I'armington, Wahsatth llange 377 



Geology (of the Laramie Hillt) 7 



gneiss. Landing Kocks, Salt Lake 425 



pi essure in 379 



Grand Encampment C:fion 137 



Granite Mountain 689 



• granite, Pah-tson Mountains 770 



Eawlings Peak 160 



Southern Shoshone llange 037 



Kinsley District 483 



Lake Range 814 



Lone Peak, TV ahsatch Range 357 



Medicine Bow Range 97 



Montezuma Range 753 



Ogden Caflou, Walisatoh Range 396 



Point, "VVahsatcli Range 403 



Park Range l:i4 



Pcavine Mcuntain 850 



Piiion Range 554 



Promontory Mountains 421, 423 



Red Creek, Uinta Range 202, 227, 208 



Roclty Mountains, discussed 109,141 



schists, Pah-tson Mountains 775 



Shoshone Range 037 



Trinity Caiion, Montezuma Ran go. 754 



TrucLoo Range •. 804, £06 



Twin Peaks, Wahsatch Range 358 



UiutaRango 198,201 



West Humboldt Range 715,717 



Arena sativa •. 747 



Argentito 731 



Arj;illites under Archa;an quartzitcs; Medicine Peak. 105 



Arrow Peak, altitude 5 



Artemia fertilis j--- ^■^•> 



Artemisia tridentata.. : 7SJ 



Artesian boring at Rock Spring Station 234 



Ashley Creek Basix > 291 



coal in Colorado Crotaceoue 294 



Dakota con glome} Bile 293 



FoxlliU Cretaceous 295 



gypsum in Triassic 292 



in Jurassic '. 293 



Park, Weber Quartzite 268 



A spen Plateau, Vermillion Creek Eocene 337 



Station, Colorado Cretaceous 253, 326 



Astor Pass, Virginia Range, trachyte 848 



Augite-aildcsite, ago of 480 



Annie Creek 588 



Antimony Canon C54 



Page. 



Augite-andesite, Angnsta Cafion 054 



Cedar Mountains 463 



Jacob's Promontory 641 



Palisade Canon (quartziferous) 586 



Peavine Mountains 851 



Spring Canon 460 



Susan Creek 598 



Truckeo Canon 830 



Tuscarora 611 



propylite. Silver Mountain 832 



trachyte, North Park 124 



PilotButte 238 



Augusta Canon, Augusta Mountains, andesito 653 



augite-andesite 054 

 hornblende- 

 porphyry . . . 052 



MoUKTAISS 649 



andesito 653,654 



diabase 649 



diorit e 657 



granite 051 



hornblende-porphyry 651 



Jurassic 656 



rhyolite 649, 055, 658 



Star Peak Triassic 6ril, C57 



thickness of rhyolite Hows CJ.C 



Authors, Allen, O. D., analyses 15,443, 



731, 743, 744, 747, 748, 749, 750, 773, 791, 792, 824 



Anger, Dr., analysis 838 



Biscbolf, Gnstav, cited 436 



Bradley, F. H., cited 13fi 



Brewster, B. E., analyses 31, 32, 



35, 36, 39, 4 1, 78, 1 15, 155, 212, 223, 242, C40, 247, 248, 

 274, 288, 292, 295,297, 299, 3C4, :',0C, 323, 324, 350, 366, 

 367, 373, 376, 380,'3e9, 390, 411, 467, 484, 50U, 513, 530, 

 563, 572, 586, 069, 7C.''>, 720, 722, 723, 720, 707, 774, 821 



Bunsen, Robert, analyses 398, 770 



Clayton, J. E., cited 358, 305, 446, 448 



Cope, E. D., cited 231,241,231 



Drown, T. M, analyses 356,477, 



489,577,603,715,779,798 



Ehrenbcrg, C. G., cited 768,820 



Engelraann, Henry, cited 348, .358 



Gabb, William n. ci;ed 712,725 



Gentb, F. A., analysis 86 



Griunell, O. B., Paleontology of Black Hills 33 



Hague, J. D.,Comstock Lode 825 



American Mining District... 7:29 

 mining in West Humboldt 



Range 730 



terraces of Anaho Island 824 



H.iU & Whitfield, tilLcl 365,400,444, 



544, 546, 609, 057, 711, 712 



Hayden, F. V., co&l n cks of Colorado 63 



Palseozoic strata of Black 



Hills 29 



White River Tertiary 65 



Hunt, T. Sterry, aralysis 14 



Hyatt, Alpheus, cited ' 724 



Jackson, C. T., analysis 438 



Juughuhn, cited 770 



King, Clarence, notes 330, 374, 532, 



551, 573, 577, 5t3, 092, 713, 759, 824 

 geology of Washoe region . 825 



Triassic iu Oregon 090 



