INDEX 
425 
INDEX 
Absence of Laramian Beds in South¬ 
ern Rockies, 150 
Adams, F. D., cited, 45; quoted, 368 
Adanana shales, 335 
Agassiz, A., cited, 12 
Ages of Ice, bridging, 349 
Albin shales, 319 
Allamakee dolomite, 319 
America, Carbonic first recognized, 
3; Cretacic first recognized, 3; 
Introduction of Modern Geology, 
1 
Andean geosyncline, 203 
Ancient continents, 367 
Angara shield, 368 
Anorthosites of Pennsylvania, 29; 
analysis, 42 
Antimony deposits, diagram, 95 
Okanogan Valley, Washington, 94 
Antiquity of Chupadera Mesa Iron 
Deposits, 89 
Antiquity of Lingula, 261 
Antisell, T,, quoted, 143 
Appalachian structure, 53 
Aquia formation, Terubratula, 19 
Arch-America, 374 
Arch-Eurasia, 374 
Arch-Gondwana, 374 
Archimedes limestones, 341 
Archuleta shales, 335 
Arey, M. F,, cited 406 
Argentina, Continental Permian de¬ 
posits, 421 
Permian glacial deposits, 199 
Arid piedmonts, basinal sand drift¬ 
ing, 173 
Arizona, Arkansan series, 244 
Burlington fauna, 243 
Burlington fossils, 411 
Cambric rocks, 239 / 
Carbonic rocks, 240 
Chouteau fauna, 243 
Chouteau fossils, 411 
Coal Measures, 244 
Coconino sandstone, 411 
Comanchan series, 246 
Correlation of Paleozoics, 236 
Cretacic rocks, 247 
Devonic rocks, 240 
Devonic unconformity, 411 
Framework of Geology, 231 
Geological section, 250 
Jurassic rocks, 246 
Keokuk fauna, 243 
Keokuk fossils, 411 
Mazatzal quartzites, 299 
Mississippian series, 242 
Natural bridge, 300 
Navajo dome, 137 
Ordovicic rocks, 239 
Palacial section of Grand Canyon, 
409 
Permian rocks, 245 
Permian rocks of Grand Canyon, 
147 
Physiographic provinces, 231 
Pre-Cambrian schists, 300 
Proterozoic sediments, 411 
Quaternic rocks, 249 
Red Wall limestone, 411 
Siluric rocks, 240 
Supaian shales, 411 
Terranes, delimitation, 335 
Tertic rocks, 248 
Triassic rocks, 246 
Volcanic rocks, 252 
Arkansan series in Arizona, 244 
Armedaris limestones, 335 
Arvali mountains, 370 
Atlantis, 372 
Aubreyan series, 335 
Permian age, 147 
Augusta natural bridge of Utah, 
view, 288 
Aux Vases sandstone, 339 
Azoic rocks of Arizona, 234 
Aztecan series, 335 
Bagg, R. M., quoted, 21, 142 
Baikal direction, 369 
