INDEX. 



541 



Nyssa complah ata 513 

 laevigata 513 

 lanceolata 513 

 microcarpa 513 

 Nyssese 513 

 Obsidian 468 



OfiBce work of the topographer 303-305 

 Ojo Caliente 401 

 Oleaceae 511 

 OleracejB 509 

 Onoclea sensibilis 498 

 Opegrapha antiqua 496 

 Ophioglossum Alleni 498 

 OreodaphDe cretacea 491 

 Origin of erupted rocks 262 



of Colorado 269 

 Orography and stratigraphy 90 

 Orthoclase, analyses of- 147 

 Osmanda afiSnis 498 

 Ottelia Americana 

 Owen's Valley 470 



Packard, A.S.J r., report of, on insects af- 

 fecting the cranberry, &c. 521 

 Pah-Utes 465, 468, 470, 471, 472, 475 



location of 461 

 Pah-Ute remedy for cramp 470 

 Palaeontology and zoology 479 

 Palaeozoic formations, tables of 128 

 Paliurus colombi 516 



Florissanti 516 

 membranaceus 494 

 zizyphoides 516 

 Palmacites Goldianus 502 

 Palmae 489, 502 

 Palmer, Dr. E. 404, 407 

 Palmocarpon commune 503 



compositum 503 

 corrugatum 503 

 Mexicanum 503 

 Bubcylindricum 503 

 truueatum 503 

 Paradox Valley 163, 165, 167, 168, 178 

 Parachute Creek 176, 353 

 Parks and basins 9 

 Partz,Mr. 468,470 

 Pastimes and games of Indians 462 

 Pasture-land, estimated area of 318 

 Peach Springs 475 



Peale, A. C, geological report of 161 

 Pecopteris Nebraskana, 488 

 Permian group, ta,ble of 128 

 Permo-carboniferous group, tables of 128 

 Pennsylvania, changes in rain-fall in parts 



of 476 

 Perfect rooms found in Chaco ruins 438, 



442, 445 

 Persea Leconteana 491 



pseudo Carolinensis 510 

 Sternbergii 491 

 Petzite, analysis of 148 

 Phaenogamae 499 

 Phenogamae 488 

 Phragmites Alaskaua 500 

 cretaceus 480 

 (Eningersis 500 

 Phyllites amorphus 496 



betulaefolius 496 

 carneosus 520 

 cotinus 496 

 Cupanioides 520 



Phyllites improbatus 502 



maboniaeformis 520 



abcordatus 496 



rhoifolius 495 



rhomboideus 496 



sapindiformis 520 



truncatus 520 



umbonatus 496 



Vanonae 495 



venosus 520 

 Phyllocladus subintegrifolius 489 

 Physical Geography of Colorado 313 

 Physiognomy of White Eiver Valley 367, 



368 

 Piceance Creek 353 

 Pickeringite, analysis of 148 

 Pictographs, Indian 474 

 Pima Indians, location of 461 

 Pimos 467 



Pine Monohammus 528 

 Pinon nuts for food 473 

 Piiion Eidge ;566 

 Pinus palsBOstrobus ? 500 

 pannonica 500 

 polaris 500 

 Quenstedti 489 

 Pipes, Ibdian 467 

 Pisonia racemosa 509 

 Pistia corrugata 502 

 Pitch-pine gall-fly 527 

 Plains, area of Colorado 313 

 Planera dubia 508 



Gmelini 508 

 longifolia 508 

 microphylla 508 

 Ungeri 508 

 Plants of North America, Cretaceous and 



Tertiary, catalogue of 487 

 Plaster on cliff houses 397, 417 

 Plataneae 507 

 Platanus aceroides 507 



affinis 493 



appendiculata 507 



diminutiva 490 



dissecta 507 



dubia 512 



Guillelmae 507 



Haydenii 507 



Heerii 490 



latiloba 490 



Newberriana 490 



nobilis 507 



obtusiloba 490 



prunaeva 490 



recurvata 492 



Kaynoldsii 507 



rhomboidea 507 

 Plateau Creek 176 

 Platte Water Canal 339 

 Pleasant Valley, on the Arkansas 328 

 Platonic eruptives, acidic 210 

 basic 208 

 Poacites tenue-striatus 501 

 Podogonium Americanum 519 

 Poisoned arrow-heads 460 

 Polycarpicae 493, 513 

 Polygoneae 509 

 Polypetalae 512 

 Polypetaleas 492 

 Pomaceae 519 



