497 



Page. 



Eissoidea 126 



River, Animas 155 



Guunisou 166 



Uncompahgre 168 



Eobert Bruce lode 159 



Rocky MoHntaius 401 



Ruins at Aztec Springs 26 



in Mancos Caiion 18-20 



on the Hovenweep 30 



McElmo 27 



Sacconiyidae 89 



Sagotylus confluentus 297 



Salda coriacea _ '^ 334 



humilis ...• !^ 334 



interstitialis - 333 



legata 333 



luctuosa 334 



lugnbris 333 



saltatoria 334 



signoretii ^ 333 



Saldidse 333 



Salvinia atteuuata 377 



San Cristoval Lake 169 



Juan mines 155 



mining-region 151, 153 



Rio 17 



Miguel Lake 191,197 



Sapindus Dentoui 388 



Scolopocerus secundarius : 299 



Scolops angustatus 350 



grossns 350 



hesperius .. 349 



sulcipes 349 



Scudder, Samuel H., Tertiary Physopoda of Colorado . 221 



fossil Orthoptera from the Rocky Mountain Tertiaries 447 



Scutelleroidea -• 269 



Sections of strata 249,250,372,373,403 



Seliirus cinctus 281 



Selaginella? falcata 365, 378 



laciniata 378 



Sephina limbata - 291 



Sequoia acuminata 384 



affinis 384 



hiformis - 366 



brevifolia 365,378 



condita 391 



fastigiata ? 391 



longifolia 365 



subulata? ' 392 



Serphus dilatatus ' — -• 338 



Sierra la Plata 17 



Sal 199 



San Juan -. 17 



Silurian flora 235 



limestones 219 



Silver Court lode 162 



Silverton 155,179 



Sinea coronata 326 



diadema - 326 



raptoria 326 



Sirtheuea cariuata 329 



Suffles, Mount 167,168,180,189 



ascent of. 193 



SolenodontinsB -♦ lHj 112 



Somatogyrus isogouus var. subglobosus 126 



SoricidEe 108,111,114,116 



bibliography of 120 



Soricinse -• HI 



Soricoidea HO 



No. 6 6 



