CONTENTS 



Page 



Proceedings of the Thirteenth Summer Meeting, held at Denver, Colorado, 



August 27, 1901 ; H. L. Fairchild, Secretary 1 



Session of Tuesday, August 27, 1901 1 



Election of Fellows 1 



Geological excursion in Colorado ; by C. R. Van Hise 2 



Junction of Lake Superior sandstone and Keweenawan trap in Wis- 

 consin [abstract] ; by U. S. Grant 6 



Classification of the geological formations of Tennessee ; by James 



M. Safford 10 



Horizons of phosphate rock in Tennessee ; by James M. Safford 14 



Register of the Denver meeting , 16 



Still rivers of western Connecticut ; by William Herbert Hobbs 17 



Hydrographic history of South Dakota ; by J. E. Todd 27 



Geology of the northeast coast of Brazil ; by John C. Branner 41 



Outlook of the geologist in America : Annual address by the President, 



Charles D. Walcott 99 



Geological horizon of the Kanawha black flint ; by I. C. White. 119 



Origin and distribution of the loess in northern China and central Asia ; by 



G. Frederick Wright 127 



Former extent of the Newark system ; by William Herbert Hobbs 139 



Hamilton group of Thedford, Ontario; by Hervey W. Shimer and Amadeus 



W. Grabau 149 



Geology of the Potomac group in the middle Atlantic slope ; by W. B. Clark 



and A. Bibbins , *. 187 



Correlation of the Coal Measures of Maryland ; by W. B. Clark and G. C. 



Martin 215 



Geological section of the Rocky mountains in northern Alaska; by F. C. 



Schrader 233 



Geological reconnaissances in southeastern Alaska ; by Alfred Hulse Brooks. 253 



Devonian interval in Missouri ; by Charles R. Keyes 267 



Rock basins of Helen mine, Michipicoten, Canada; by Arthur P. Coleman. 293 

 Stratigraphy and structure, Lewis and Livingston ranges, Montana; by Bailey 



Willis , 305 



Copper-bearing rocks of Virgilina copper district, Virginia and North Caro- 

 lina ; by Thomas Leonard Watson 353 



Catalog of photographs belonging to the Geological Society of America; by 



N. H. Darton 377 



Proceedings of the Fourteenth Annual Meeting, held at Rochester, New York, 

 December 31, 1901, and January 1 and 2, 1902, including Proceedings of 

 Third Annual Meeting of the Cordilleran Section, held at San Francisco, 



December 30 and 31, 1901 ; Herman Le Roy Fairchild, Secretary 477 



Session of Tuesday, December 31 477 



Report of the Council 477 



Cordilleran Section 477 



Secretary's report 478 



Treasurer's report 481 



Editor's report 483 



Librarian's report 485 



(iii) 



