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CONTENTS 



rage 

 I'roceediiijj^s of the Tliirtietli Annual Meeting of the Geological Society of 

 America, held at Saint Louis, Missouri, December 27, 28, and 29. 1917 ; 



Edmund Otis Hovey, Secretarij 1 



Session of Thiu'sday, December 27 4 



Report of the Council 4 



Secretary's report 5 



Treasurer's report 7 



Editor's report ^. . 9 



p]lection of Auditing Committee 11 



Election of officers 11 



Election of Fellows 12 



Necrology 12 



Memorial of Amos P. Brown (with bibliography) ; by R. A. F. Pen- 

 rose, Jr 13 



Memorial of D. D. Cairnes (with bibliography) ; by Charles Cam- 

 sell 17 



Memorial of William Bullock Clark (with bibliography) ; by John 



M. Clarke 21 



Memorial of Charles W. Drysdale (with bibliography) ; by J. 



Austen Bancroft. 29 



Memorial of Arnold Hague (with bibliography) ; by Joseph P. 



Iddings 35 



Memorial of Robert H. Lougliridge (with bibliography) ; by Eu- 

 gene A. Smith 48 



Memorial of Albert Homer Purdue (with bibliography) ; by George 



H. Ashley 55 



Memorial of Henry M. Seely (with bibliography) ; by George H. 



Perkins G5 



Report of Committee on Photography 69 



Announcement from Committee on the Geological Map of Brazil . . 69 

 Titles and abstracts of papers presented before the morning ses- 

 sion and discussions thereon 69 



Report of the Geology Committee of the National Research 



Council [abstract] ; by John M. Clarke, Chairman 69 



I'ostglacial uplift of northeastern America [abstract and dis- 

 cussion] ; by Herman L. Fairchild 7U 



Paleogeography of Missouri [abstract] ; by E. B. Branson. . . 71 

 Titles and abstracts of papers presented before the afternoon ses- 

 sion and discussions thereon 71 



Subsidence of reef-encircled islands [abstract] ; by W. M. 



Davis 71 



Structure of some mountains in New Mexico [abstract] ; hy 



N. H. Darton 72 



Importance of nivation as an erosive factor and of soil flow 

 as a transporting agency in northern Greenland | abstract] ; 

 by W. Elmer Ekblaw 72 



(iii) 



