156 PEOCEEDINGS: GEOLOGICAL SOCIETY 



When we come to consider the biological theory of evolution we find 

 that it applies to the psycho-physical mechanism but not to culture. 

 For cultures we must have another point of view or theory and this in 

 America, at least, is the historical or cultural conception. This concep- 

 tion is in general that cultural traits are the results of invention, a mental 

 process, and their development or evolution is to be taken as a historical 

 and psychological problem. 



The paper was briefly discussed by Dr. Folkmar, Dr. Swanton and 



Dr. Hough. 



Wm. H. Babcock, Secretary. 



THE GEOLOGICAL SOCIETY OF WASHINGTON 

 The 262d meeting was held in the Cosmos Club, December 11, 1912. 



REGULAR PROGRAM 



Presidential address — Soyne variations in Upper Cretaceous stratig- 

 7'aphy: T. W. Stanton. This address appears in full in this Journal 3: 

 55. 1913. 



The twentieth annual meeting was then held. 



The reports of the Secretaries and Treasurer were read and accepted. 



The following officers were elected for the year 1913: President, F. 

 L. Ransome; first vice-president, David White, second vice-president, 

 Arthur Keith; treasurer, Sidney Paige; secretaries, R. W. Richards, 

 Frank L. Hess; Members-at-large-of-the-council, Wm. C. Alden, 

 Adolph Knopf, C. E. Siebenthal, P. S. SxMITh, E. W. Shaw. 



Dr. T. W. Stanton was nominated as candidate for the vice-presi- 

 dency of the Washington Academy of Sciences to represent the Geo- 

 logical Society. 



R. W. Richards, Secretary. 



