496 



Page 



PtocliioDiera fuscicornis 308 



minima 308 



nodosa 308 



puberula 308 



Pthia picta 299 



Publilia concava 344 



modesta 344 



Pulmonata 127 



Pupidas 127 



Papilla alticola , 128 



Blandi 127 



muscorum 127 



Pupinfe 127 



Pjojolampis pectoralis 322 



sericea 322 



Pyrrhocoriua 314 



Quercus competens 370 



Haidingeri 387 



Eanatra fusca 338 



quadridentata 338 



Easahns biguttatus 330 



Katon Hills 401,402 



Rattlesnake Bend 22 



cliff-house at 23 



Rectangle, Baker's Park 207 



east of Baker's Park 208 



of quartzite peaks south of Baker's Park 208 



southeast of Baker's Park 208 



west of Baker's Park 207 



Red Cloud location , 158 



Red-throated Ibycter 470 



Reduviina ^ 326 



Reduvioidea 326 



Repi pta taurus 327 



Report on the mines and geology of the San Juan Country, by F. M. Endlich, S. 



N. D 151 



on the natural history of the United States Geological and Geographical 



Survey of the Territories, by Ernest Ingersoll, zoologist 121 



on the topography of the San Juan Country, by Franklin Rhoda, assistant 



topographer 165 



Resthenia confraterna 318 



iusiguis 318 



Resura6 of publications concerning Lewis and Clarke's travels 429 



Review of the fossil flora of North America, by Leo Lesq uereux 233 



Rhacognathus americanus 282 



Rhagovelia collaris 334 



Rhamnus Rossmassleri 388 



Rhintestes pectinatus 3 



Rhoda Franklin, rei)ort on topography of the San Juan Country 165 



Rhopalina , 300 



Rhopalotomus brachy cerus 319 



l^aciiicus 319 



Rhynchocyonimie 109 



Rhynchouella Eudlichi 46 



Rhytidolomia Belfragii 287 



Rhus membranacea 369 



Ridgway, Robert, monograph of the genus Leucosticte, by •! 



outlines of a natural arrangement of the FalconidiB, by 225 



studies of American Falconidse 451 



Rio de los IMancos 17 



Dolores 18 



Grande 182 



del Norte 17 



fall of, from Cunningham Pass to Del Norte 148 



Pyramid 166,183,184 



la Plata 17 



las Animas 17 



San Juan 17 



San Miguel, fall of, commencing at Bear Creek Pass 148 



