IV 
CONTENTS 
Mountain, by C. Keyes, 168; Multiplanary Relief of American 
Deserts, by C. Keyes, 170; Basinal Sand-drifting on Arid Pied¬ 
monts, by C. Keyes, 173. 
October Number 
ScARPiTTA Bronze oe Springer; by Charles Keyes . . Page 177 
Outlines oe SoutTi American Geology; by Edward W. Berry . 187 
Research Problems oe the Great Basin; by John A. Widtsoe . 223 
Framework oe Arizona Geology; by Charles Keyes . . . 231 
Editorial : 
Overthrusts in Great Basin Ranges, 253. 
Paleontological Geology; 
Antiquity of Lingula, by C. Keyes, 261; Balanocrinus in Ameri¬ 
ca, by F. Springer, 262; Late Paleozoic Fossils on Summit of 
Ozarks, by C. Keyes, 263; James Hall and American Paleontol¬ 
ogy, by C. Keyes, 265; Biotic Taxonomy of Comanche Succes¬ 
sion, by T. W. Stanton, 266; Employment of Geologists, by F. 
W. Sardeson, 268; Devonic Outliers on the Missouri Highlands, 
by C. Keyes, 271. 
November Number 
Pioneer Geological Explorations oe Edwin James ; by Charles Keyes 273 
Geology in Rural Weleare; by John E. Smith . . . 283 
Outstanding Geological Features oe Colorado River Basin; 
by Frederick J. Pack .289 
Proterozoic Mazatzal Quartzite oe Arizona; by Eldred D. Wilson 299 
Terranal Dieeerentiation oe Iowa Cambric Succession ;'by 
Charles Keyes.313 
Editorial : 
Political Inherency of Geological Science, 327. 
Stratigraphical Geology: 
Delimitations of Sundry Arizona Terranes, by C. Keyes, 335; 
Diastrophic Aspect of Aux Vases Sandstone, by C. Keyes, 339. 
December Number 
Bridging the Ages oe Ice, by Charles Keyes .... 349 
Glacial Border oe Spokane, by Thomas Large .... 359 
Positions oe the Ancient Continents, by Rudolph Ruedemann . 367 
Southernmost Extension oe Kansas Tills, by Walter H. Schoewe 378 
Glacial Driet Sheets in Minnesota, by Frederick W. Sardeson . 383 
Ceramics oe Gumbo Soils, by Charles Keyes .... 403 
Editorial : 
Grand Canyon’s Palacial Section, 409. 
Glacial Geology .413 
Volcanic Ash in Glacial Till, by C. Keyes, 413; Original of 
McGee’s Complex Drift Sections, by C. Keyes, 416; Permian 
Glacial and Continental Deposits in Argentina, by E. W. Berry, 
420; Climatic Index of Bonneville Lake Beds, by C. Keyes, 423. 
Index.425 
