INDEX. 505 



Page. 



Potsdam group 80, 110 



of Eagle River Ill 



Grand Eiver Ill 



Previous esploratioas of middle district 415 



Pride of the West lode 234 



Primordial period .110 



Prospector lode >. 236 



Prout, H. G 416 



Pseudomorpbs after salt 212 



Pyramid Peak 418 



Eio Grande 198,200,470 



Q. 



Quartzite mountains 187,473 



Quebec group Ill, 112 



E. 



Eange, Elk Mountain 54,58 



Front 37,45,436 



Park 48,436 



Sawatcli 48, 54 



Wasatch 47 



Eattlesnake Bend 374 



cliff-house at 375 



Eedheds 42,57,86,97 



age of , 121 



stratum 197 



Eeportof A. C. Peale 73 



A. D. Wilson 443 



Ernest Ingersoll 383 



r. M. Endlich, S. N. D 181 



conclusion of . c. .. . - - , ? 239 



Franklin Ehoda 1 451 



F. V. Hayden 19 



Henry Gannett 413 



Leo Lesquereux 271 



Samuel Aughey, Ph. D 241 



S. B. Ladd 435 



W. H.Holmes 59 



W. H. Jackson 367 



on northwestern portion of Elk Mountains 59 



natural history 385 



Eeports of Henry Gannett, S. B. Ladd, and A. D. Wilson 411 



Eeview of Cretaceous flora of North America 316 



Eio Animas 206,369 



rate of fall of „ 446 



de los Mancos 369 



Dolores 206,370 



Florida 224 



Grande del Norte 198,370 



rate of fall of 446 



Pyramid..... 198,200,470 



La Plata 369 



Los Pinos, rate of fall of 446 



San Juan 369 



Miguel 206,215 



Eiver, Blue 85 



Dolores 206,315,370 



Eagle 81,84,421 



East 95 



Grand 57,85,93,421,437 



Gunnison 94, 424 



North Fork of 93,98 



Mancos 369 



Slate 94 



Uncompahgre 94, 103 



White 437 



Yampah 437 



Roads 428 



