302 INDEX. 



Page. 



Eruptions, causes of 113,125,129 



Centers of 18^297 



Cyclical character of j20 



Escalanto Cafions 289 



Monocline 288,294 



Kiver 291,292 



Faults, general discussion of (Chap. II) 25 



homology of, with mouoclinal flexures 26 



location of Aquarius ^ 293 



East Kaibab 32 



East Musinia 34 



Grand Wash 7 yg 



Grass Valley 32,256,273,295 



Gunnison Valley 1G2, 1C4 



Haytield 33,295 



Hurricane 7,28,189,194,202,208 



P^a Valley 33 



Sevier , 30,163,22.5,238 



Thousand Lake 33,277,293 



Toroweap ;jO 



Tushar 29,178,180 



West Gunnison 164 



Western Kaibab 32 



Fish Lake 262 



Fish Lake Plateau, general discussion of (Chap. XII) 256 



Eolations to District of High Plateaus 4 



Fremont River 270,277,287 



Fusibility of volcanic rocks 88,90, 132,134 



Geikie, A., Carboniferous dolerite and basalts 93 



Gilbert, G. K., laccolitic rocks 94 



Navajo Mountain 290 



Origin of Fish Lake 264 



Water-Pocket fold 45 



Glacial Period 35,41 



Phenomena 35,41,264,270,285 



Grand Wash fault 7,28 



Grand Canon of the Colorado 18,20,37,209 



Granite-porphyry 119 



Grass Valley, discussion of 227,248 



Fault 32,257,273,295 



Relations of, to District of High Plateaus 4 



Gray Cliffs (see also Jurassic sandstone) 207 



Green Riverbeds 159,167,205 



Gunnison Valley 162,267 



Henry Mountains 18,19,288 



High Plateaus, component members of the 2 



Hilgard, Mount 271 



Homblendic andesite. (jSc« Andesite.) 

 Hornblendic propylite. {See Propylite.) 

 Homblendic trachyte. (See Trachyte.) 

 Howell, Edwin E., on — 



Aquarius Plateau 272 



Origin of Fish Lake 262 



Tertiaries of the Markdgunt 204 



Wasatch Plateau 164 



