IV BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Proceedings of the Twelfth Annual Meeting, held at Washington, I). C, De- 

 cember 27, 28, 29, and 30, L899, including Proceedings of First Annual 

 Meeting of the Coidilleran Section, held at Sun Francisco, December 29 



ami 30, 1899 ; II. L. Fairchild, Secretary 511 



Session of Wednesday, December 27 512 



Report of the Council 512 



Secretary's report 512 



Treasurer's report 515 



Editor's report 517 



Librarian's report 519 



Election of officers 519 



Election of Fellows 520 



Memoir of Othneil Charles Marsh [with bibliography] ; by C. E. 



Beecher 521 



Memoir of Oliver Marcy ; by Al.ia R. Crook. . . 537 



Memoir of Edward Orton [with bibliography] ; by G. K. Gilbert. 542 

 Memoir of Sir J. William Dawson [with bibliography by H. M. 



Ami] ; by F. D. Adams 550 



Erosion forms in Harney Peak district, South Dakota [abstract, 



with discussion] ; by Edmund Otis Hovey 581 



Landslides of the Rico mountains, Colorado [abstract, with discus- 

 sion] ; by Whitman Cross 583 



Session of Wednesday evening, December 27 584 



Session of Thursday, December 28 584 



Tenth annual report of Committee on Photographs 584 



Organization of the Cordilleran Section 587 



Glacial erosion in the Aar valley [abstract, with discussion] ; by 



Albert P. Prigiiam. • 588 



Session of Friday, December 29 593 



Council's recommendations concerning Geological Congress dele- 

 gates and compensation to Secretary and Editor 593 



Relative ages of the Kanawha and Alleghany series as indicated by 



the fossil plants [discussion] ; by David White 594 



Session of Saturday, December 30 59G 



Continental deposits of the Rocky Mountain region [with discus- 

 sion] ; by Willtam M. Davis 596 



Further studies on the history of the Cincinnati anticline [discus- 

 sion] ; by A. F. Foerste 601 



Register of the "Washington meeting, 1899 607 



Session of the Cordilleran Section, Friday, December 29 609 



Session of the Cordilleran Section, Saturday, December 30 610 



Goat-antelope from the cave fauna of Pikes Peak region ; by F. W. 



Cragin 610 



Ground sloths in the California Quatenary ; by John C. Merriam. . 612 



Register of San Francisco meeting of Cordilleran Section, 1899 616 



Accessions to Library from March, 1899, to June, 1900 617 



( Mlieers and Fellows of the Geological Society of America 629 



Index to volume 11 639 



