482 



Page. 

 Animas River, fall of, from divide between it and east branch of Uncompaligre, 



to the lower end of Animas Park 148 



Anisoscelidina 298 



Anodonta angulata 140 



californiensis 140 



Nuttalliana 140 



oregonensis 140 



whalamatensis 140 



Anomia micronema 43 



Antelope Park 183 



Anthocorid£e ■ 320 



Anthocoris musculus 321 



Aphelonema (new genus) 356 



simples 356 



Aphrophora permutata 345 



quadraugularis 346 



Apiomerina 328 



Apiomerus crassipes 328 



flaviveutris 328 



repletus 329 



spissipes 328 



ven trails » 328 



Appendix to synoi^sis of insectivorous mammals 113 



AradidsB 321 



Aradus acutns 321 



sequalis 321 



ampliatus 321 



cinnamomeus 321 



debilis 322 



fuscomaculatus 323 



inornatus 323 



rectus 321 



tuberculifer 321 



AraFia concreta ;... 394 



quinquepartita 394 



Saportana 394 



eemi-orbiculata 395 



Towneri 395 



tripartita 394 



Arastra Gulch 155,158,160,180 



Archasia gal^ata 344 



Archimerus calcarator 297 



Aristolochites iufundibuliformis 393 



Aruudo obtusa 385 



reperta 384 



Arvelius albo-punctatus 290 



Ascent of Mount Sneffles 193 



Asopina 281 



Aspin lode , 161 



Atrachelus cine reus 327 



Aufeius impressicollis 300 



Aulacizes irrorata .• 357 



Aulacostethus simulans 272 



Authentic narrative of Lewis and Clarke's travels 425 



Aztec Springs 25 



ruins at 26 



Baker's Park 154,155,156,162,178 



rectangle 207 



Banasa calva 291 



dimidiata 291 



eucblora 291 



Bannister, Dr -- 41 



Battv, J. H., referred to - 264 



Bear'Creek ISO 



Pass. 180 



Belonochilus numenius 305 



Belostoma americanum 337 



annulipes 337 



Belostomiclfc , 337 



