INDEX. 



Abajo Peak 278 



Siena 189, 426 

 Abietineso 499 

 Abietites dubius 500 



Emestinse 488 

 setiger 500 

 Abiquiu 401 



Acacia septentrionalis 519 

 Acer aequidentatum 515 

 Bolanderi 515 

 macropterum 515 

 trilobatum 515 

 Aceracese 515 

 Acerinese 494, 515 

 Acerites pristinus 494 

 Acidic plutonic eruptives 210 

 volcanic eruptives 213 

 Acorus Vrachystachys 502 

 Adams, Robert, describes ruins 415 

 Adultery among Indians and punishment 



of (See Prostitution) 464 

 ^sculus antiquus 515 

 Age of Colorado eruptives 252 



porphyritic trachyte 245 

 Agriculture, successful, conditions of 319 

 Aleurites Eocenica 514 

 AlgiB 496 

 AlismacesB 501 

 Alkali Creek 173, 179 

 Alnites grandifolia 489 



inaequilateralis 504 

 Alnus Kansaseana 493 

 Kefersteinii 504 

 quadrangularis 493 

 serrata 504 

 Altaite, analyses of 136 

 Altitudes, determination of 299 

 Amelanchier similis 519 

 Amentaceae 489, 503 

 Amount of water used in irrigation 320, 



321 

 AmpelidesB 512 

 Ampelophyllum attenuatum 493 



ovatum 493 

 Ampelopsis tertiaria 512 

 Anahuac, ancient 476 

 Acchylopera vacciniana 524 

 Ancient pottery from the San Juan, &c. 



449 

 Ancient remains 475 

 Andesite 213 

 Andromeda affinis 492 

 dubia 511 

 Grayana 511 

 Parlatorii 492 

 reticulata? 511 

 vaccinifoliae afiSnis 511 

 Anethnm graveolens 465 

 Animas River, profile of 331 

 Anisophyllum semi-alatum 495 



Antiquity of ruins C89, 394, 397 

 Anonaceae 514 

 Anthonomus suturalis 525 

 Anthracite, analyses of 137 

 Apache Arivapah, location of 461 

 Coyot^ros 466, 471 



location of 461 

 location of 461 

 Mojaves 471 



location of 461 

 Apachfes 465, 466, 467 



mode of killing animals by 466 

 Apishpa River, arable area of 327 

 Apeibopsis ? discolor 514 

 Gaudini 514 

 Heerii 514 

 ApetalsB 503 



Arable and pasture-lands of Colorado, re- 

 port on, by Henry Gannett 311-347 

 Arable land, distribution of 318-338 



estimated area of 318 

 Araceas 502 



Aralia angustiloba 512 

 concreta 492 

 gracilis 512 

 imperfecta 492 

 notata 512 

 quinquepartita 493 

 Saportanea 493 

 Towneri 493 

 triloba 512 

 Whitneyi 512 

 Zaddachi? 512 

 AraliacesB 512 

 Araucaria spatulata 488 

 Archaeology and ethnology 379 

 Architecture of cliff-dwellers 476. 

 Area of Colorado 313 

 Arfvedsonite, analysis of 138 

 Arickarees, pottery of 469 

 Aristolochia cordifolia 509 

 curvata 509 

 obscura 509 

 CEningensis 509 

 Aristolochites dentata 492 

 Arkansas River, arable area of 326; 328' 

 profile of 328 

 measurements of 326 

 Aroideao 502 

 Arrow-heads 388, 407 



"bottle-glass" 468' 

 manufacture of stone 467, 468' 

 Arrows, poisoned 468 

 Artocarpidium olmediaefolium516' 

 Arundo Goepperti ? 500 

 ? obtusa 500 

 reperta 500 

 Asarineae 492 

 Asclepiadineai 511 

 Asimina Eoceuica 514 



533; 



