INDEX. 



409 



Page. 



Dolomite in Hamburg limestone 40 



Drown, Thomas M., analysis of pyroxene-andesite 2fl4 



Dry Lake, andcsitic pcarlite and dacite of 368 



Valley 141 



Durocher, J., theory of lavas 273, 275 



E. 



East Humboldt Range 2,176 



granite and gneiss in 219 



pre-Cambrian barrier 176 



Emmons, S. F., Devonian in Tucubit Mountains 202 



fault in Oquirrh Kange 186 



fisli remains in Tucubit Mountains ... 72 

 pyroxene-andesite cutting hornblende- 



andesite 260 



Erian plant remains 70 



Erosion of Secret Canyon shale 39, 109 



White Pine shale, Hayes Canyon 157 



Eureka a volcanic center 230 



and Washoc Districts compared 230 



District, bullion product 6 



general description 1-7 



history 6 



lead product 7 



timber 4 



Mountains, description 3 



quartzite, base of Combs Peak 24 



Caribou Hill 212 



County Peak region 147 



description 54 



forfluxing 55 



Hoosac Mountain 112 



Lookout Mouiitaiu 130 



nature of material 180 



Pahrauagat Range 196 



section across 56 



section at Castle Mountain 56 



Spanish Mountain 24 



Surprise Peak 108 



thickness 13,57 



WhitePine 191 



yielding gold 55 



Tunnel 38,103 



F. 



Faulted anticline. Fish Creek Mountains 119 



Newark Mountain 155 



anticlines 210 



block in Lamoureux Canyon 134 



Faults- 

 Alpha 159,160 



Hoosac 14, 15 



Jackson 51, 100, 300, 303 



Lamoureux 134 



Lookout 129 



M in I MI- 141 



Newark 159 



Pinnacle Peak 126,129 



Pinto 14,17,149 



ProspectPeak 15 



Rescue 14,18,151.154 



Ruby Hill 17,101,302,307 



Spring Valley and Sierra 14 



Fauna of the Cambrian 41 



Devonian 70-84 



Lone Mountain limestone 59-61 



Lower Coal-measures 86 



Page- 

 Fauna of the Pogonip 49-54 



Upper Coal-measures 94 



Feldspar in andcsitic pearlitc and dacitc 369 



basalt 386.393 



granite 337 



granite-porphyry 339 



hornblende-mica-andesite 364 



pyroxene-andesitc S49, 361 



rhyolite 375 



microlites in rhyolite 378 



Feldspathic magma 254, 255 



Fish Creek Mountains 21-28 



granite-porphyry iikes in 122, 344 



Pogonip fauna 53 



structure 118 



Fissure eruptions 245, 270 



Fissures, filling of 308 



in Prospect Mountain Tunnel 106 



Fossil Butte 195 



Fossils 



Acervularia pentagona 138, 199 



Acrotreta (like A. subconica) 60 



gemma 44,45,50,51,191 



Agnostus bidens 43, 44, 45, 50, 108, 118. 192 



communis 43,44,45,50. 118,192 



interstrictus 42 



neon 43,44,45,50,118 



prolongus 45 



richmondensis 43, 118 



seclnsns 44 



tumidosns 45 



tumifrons 45 



Alveolites rockfordensis 83 



Amboco3lia umbonata 193, 194, 199 



A 1 1 1 1 1 h i M 1 1 51 



nevadensis 53 



Amplexus 199 



A in pi il l.u i;i 167 



powelli 87 



Anadontopsis amygdaUeformis 75 



Anarthrocanna 69 



Aneimites 70 



A uomocare parvum 42 



Archreocidaris 89 



Archffiocyathus 189 



atlanticus 189 



Arethusina americanai 45,50,51 



Asaphns caribouensis 50, 51, 52, 53 



curiosus 52 



platycephalus 59 



Athyris 85,199 



plano-sulcata 194 



angelica 82,84 



hirsuta 91 



roissyi 91. 96 



subquadrata 199 



subtilita 89, 94, 95, 96, 97, 98, 174 



Atrypa desquamata 75, 77 



reticularis 64, 74, 75, 77, 78, 79, 80, 81, 



82, 83, 84, 120, 125, 132, 134, 138, 152, 

 153, 184, 185, 193, 196, 198, 200, 202, 205 



Aalopora gerpens 132 



Auricula 87 



Aviculopecten 82, 89 



afflnis 89,91 



catactas 193.194 



