481 



Page. 



Vertebrate species of Green Eiver Tertiary- 10 



Wasatch group 14 



synchronous with the Green Eiver group 15 



vertebrates of 15 



Wet Mountain range 74 



elevations in 76 



Xiphocera pygmea 69 



BULLETINS Nos. 1, 2, 3, 4, 5, and 6-SECOND SEEIES. 



Acanthaspidina 330 



Acanthocephala declivis 297 



Acanthocepbaliua 297 



AchoUa multispiuosa 326 



tabida .' 326 



Acinocoris lunatus 315 



Acroloxus Nuttallii 138 



Acutatis calva 345 



dorsalis 345 



semicrema 345 



tartarea 345 



Adam's Park 158 



^lia americaua 284 



vEolus, Mount 178 



Agalliastes associatus 319 



Age of Eocky Mountain range 220 



Aiken, C. E., referred to 261 



Allen, J. A., referred to 261 



Alnites uniequilateralis 381 



Alydiua 293 



Alydus eurinus 293 



pilosulus 294 



pluto 294 



Ambrysus melauopterua 337 



Signoreti 337 



Amia dictyocephala 3 



measurements of.... 4 



scutata 3 



measurements of 3 



Amnestus pusillus 278 



Amnicola longinqua - 126 



turbiniformis 126 



Aranicolin;© 126 



AmpeloiJhyllum (new genus) 395 



atteuuatum 396 



firmum , 396 



Amy zon commune 3 



fusiforme 5 



measurements of 5 



pandatum 4 



measurements of 4 



An account of the various publications relating to the travels of Lewis and 



Clarke, &c., by Dr. Elliott Coues, U. S. A 417 



Auasa andresii 293 



armigera 293 



obliqua 293 



scorbutica 293 



tristis 292 



Ancient ruins in Southwestern Colorado, by W. H. Jackson 17 



Ancylinge 138 



Ancylus kootaniensis 138 



newberi'yi 138 



^-■^■-y^ patelloides 138 



Andromeda acuminata 393 



Animas Canon -- 199 



City 200 



Park 200 



Eio las 17 



Eiver 155 



1^0. 6 5 



