L\'1>K\. 



555 



Plains area, topography of 7-10 



geology of 43-45, 120-150,141-150, 179-182 



foabils of 182 



Plants (fossil), geologic ago of 35 



detailed account of 466-473 



Localities for 468-469 



horizons indicated by 469-473 



Dakota group 469-471 



Laramie and Denver 471-473 



Platte River, terraces of 



Denver beds near 



character of drift of 



Pleistocene formations, character and extent of . 



fossils of 



erosion in 



economic features of 



Pleistocene geology, description of 



Pliohippus, beds containing remains of .. 



figures of remains of 



Plum Creek section, description of 



Price River Canyon, fossils from 



Proboscidea, figures of remains of 



Protohippns, figures of remains of 



Pteranodon, beds containing remains of. 



description of 



figures of remains of 



8-9 

 198-199 



259 

 40-42, 

 255-278 

 260, 264 

 266-269 

 269 J74 

 255-278 



480 



524 

 149-150 

 241-242 



Q- 



Quartz-porphyry, occurrences of 297 



Quaternary period, geology of 255-278 



loess of 258-206 



river drift of 258-260 



fossils of 260,264 



erosion in 266-269 



K. 



Rainfall of the Denver Basin, table showing 413 



amount absorbed by different geologic forma- 

 tions 417,418,419-420 



Ralston Creek coal mines, description of 337-338 



Ralston dike, location of 7 



description of 281-283 



basalt of 302 



Kalston section, description of 114-145 



Kalston Springs coalmine, description of 337 



Randall, J. S., aid by 205 



Red Beds, stratigraphy of 51-56 



correlation of 56-60 



fossils of 57-00 



building stones of 393-397 



Reptiles of Jurassic age, descriptions of 481-508 



Rhinoceros, I lenozoic forms of. 525 



Richthofen.F. von, cited 274 



River drift, deposit of 258-360 



gold deposits of 269-272 



water content of 272 



River terraces in the Plains region 8-9 



Rock Creek fault, description of 139 



Rocky Mountain coal mines, description of 336 



Ruby formation, description of 219 



Runotf of streams, table showing 413-416 



S. 



Salisbury and Chamberlain, cited 275 



Sand Creek, Denver beds near 194 



Pago. 



Sand Gulch and Harper faults, description of 184-134 



Sandstones, descriptions of 63,71,73,76 



Sauropoda, figures of remains of 530 



Savage artesian well, Denver, description of 438,457 



Scott, W. B., cited 39 



Scran ton coal Held, description of 373-375 



Scudder, s. II. , Wyoming (Red Beds) fossils identi- 

 fied by 58, 59 



Section ravine, strata of 160-161 



Seda 1 i a district, coal of 329 



Shales, descriptions of 65, 71. 74 



Shannon artesian well, Denver, description of 440,458 



Shore-line deposits, description of 182-184 



Silurian rocks, building stones of 393 



Slack. C. S., acknowledgments to xsi 



South Boulder Peaks, description of fault near 115-119 



South Park area, former connection with the ocean of. 4, 14-15 



South Table Mountain, strata of 161-170 



section at 165-168 



basaltic rocks of 288-289 



Stagodon, figures of remains of 521 



Stanton, T. W., fossils collected by 193, 226, 241 



table of invertebrate fossils prepared by 234 



cited 239 242,250 



Steam Heating Company's artesian well, Denver, 



description of 436, 456 



Stegosaurus, description of 498-502 



restoration of 532 



Sterrholopus, figures of remains of 511 



Stone for building purposes, occurrence and char- 



acterof 392-401 



product of 100-40] 



Stout, Colo., stone quarries at 396 



Streams of tho region, discharge of 413-416 



Strikes and dips, coal measures 328 



Structural geology of the region, general character of. 42-50 



Stylacodon, figure of remains of 508 



Sullins, A- L., vertebrate remains found by 518 



Superior coal district , features of 364 



Table Mountain, Denver strata of 



fossils of Denver beds of 



surface flows of 



zeolitic minerals of 



character of basalt of 



analysis of basalt from 



volcanic toll at 



analysis of tuff from 



Tectonic geology of the region, general i uaracter of. 



Telacodon, figures of remains of 



Terraces in the Plains region 



Tertiary formations, fossils of 



Tertiary geology of the region 



Testudo, figures of remains of 



Theropoda, figures of remains of 



Titanops, figures of remains of 



Triassic formations, description of 51-00,84-85, 



building stones of 



Triceratops, figures of remains of 



description of 



restoration of 



Tuft', deposits of 



analysis of 



Turkey Creek, analysis of augite-mica syenite from. 

 Twelvetrees, W.H., cited 



184-186 



285-296 



292-296 



304-308 



306, 308 



312-313 



314 



42-50 



521 



8-9 



479-480 



151-254 



523 



538 



522 



105-106 



393-397 



511-512 



513-516 



542 



311-315 



