TITLES OP PAPERS 49 



Presented in abstract without notes. Discussed by W. W. Atwood, 

 W. M. Davis, and H. M. Eakin, with reply by the author. 



CENEZOIC HISTORY OF THE WIND RIVER MOUNTAINS, WYOMING 

 BY L. G. WESTGATE AND E. B. BRANSON 



Bead in full from manuscript by L. G. Westgate. 



OEOQRAPHIC CYCLE IN AN ARID CLIMATE: SHOULD ITS DEVELOPMENT BE 



BY WIND OR WATER? 



BY CHARLES R. KEYES 



Read by title in the absence of the author. 



STABILITY OF THE ATLANTIC COAST 

 BY DOUGLAS WILSON JOHNSON 



Presented in abstract from notes. Discussed by C. A. Davis, H. B. 

 Kiimmel, J. W. Spencer, A. C. Lane, and C. A. Davis. 



The Society adjourned at 5 o'clock p. m. 



PRESIDENTIAL ADDRESS 



In the evening at 8 o'clock, in the lecture hall of the Cosmos Club, 

 Professor Davis read his address as retiring president, entitled "The rela- 

 tions of geography to geology." At the close of the address the members 

 of the Society repaired to the dining-room of the Cosmos Club, where, 

 together with the members of the Paleontological Society and the Asso- 

 ciation of American Geographers, they were the guests of the Geological 

 Society of Washington at an informal smoker. 



Session of Saturday, December 30 



The Society convened at 10 o'clock a. m., and, in the absence of the 

 President and Vice-Presidents, A. H. Purdue was elected chairman. 



titles of papers and names of disputants 

 The reading of papers was resumed, as follows : 



PHYSIOGRAPHY OF THE EAST AFRICAN PLATEAU 

 BY GEORGE LUCIUS COLLIE 



Presented in abstract without notes. 

 IV— Bull. Gkol. Soc. Am., Vol. 23, 1911 



