489 



Homoptera 341 



Hoveuweep Valley, ruins in 30 



Howardsville 155, 177 



Hyalymenus tarsatus 294 



Hygrometriflfe 335 



Hygrotrechus remigis ^ 335 



robustus 335 



Hymenarcys feqnalis 287 



nervosa 287 



Hypnum Haydenii 383 



Ibycter 469 



americauus 470 



a ppeudix to. '. i 473 



(Daptrius) ater 472 



Ilex strangnlata 399 



Ingersoll, Ernest, report on the natural history of the United States Geological 



and Geographical Survey of the Territories, 1874 121 



special report on the MoUusca 125 



Inolepis 392 



Insectivora 101, 106 



monographic essays on 103 



ran^;e of variation of 104 



Insectivorous uiammals, classification of, by Fitzinger 100 



Gervais 96 



Gill 101 



Gray 92,93 



Mivart 99 



Peters 98 



Pomel 94 



Wagner ^ 97 



early history of 91 



synopsis of, by Theodore Gill 91 



Inscriptions on rocks near cliff-house at Rattlesnake Bend 23 



Ischuodemus falicns 305 



Ischnorhynchus didimus 305 



Issus aciculatis - 353 



auroreus 352 



Jackson , W. H., ancient ruins in Southwestern Colorado 17 



Jadera hsematolonia 302 



Jassina 358 



Jassus laetus -. 360 



Jefferson prodrome and the apocrypha 418 



Juglans alkalina - 382 



rhamnoides 370 



Kendall Mountain 158, 178 



King Solomon Mountain 178 



Labidua tertiaria 447 



Labops hesperius 319 



Lagopus leucurus (White-tailed Ptarmigan) 263 



Lake Fork 167,170 



fall of, commencing at divide west of Handle's Peak 149 



Lake San Cristoval 169 



Miguel 191,197 



La Plata Mountains 191 



Largina 315 



Largus cinctus ^ - 315 



succinctns 315 



Laurus (Persea) prajstans % 368 



protesefolia 393 



Leguminosites alternans - 388 



Lemnafbullata 363,377 



Lej)tocorisa tipuloides 294 



Leptocorisina 294 



Leptocoris trivittatus 301 



Leptoglossns corculus 298 



oppositns 298 



phyllopus 298 



zonatus 298 



Leptopterna amoena - 316 



