532 PROCEEDINGS OF THE WASHINGTON MEETING 



ward into Oklahoma. The shales contain fossils by which the}' can be correlated 

 with the lower cretaceous of Texas. 



The paper wa.s discussed by W. B. Scott, S. \V. Williston, N. H. Dar- 

 ton, and T. W. Stanton. 



The fourth paper was 



CRETACEOUS-EOCENE BOUNDARY IN THE ATLANTIC COASTAL PLAIN 

 BY W. B. CLARK 



Remarks were made by Bailey Willis. A short abstract is printed in 

 Science, volume xvii, page 293. 



The fifth paper was 



SHIFTING OF FAUNAS AS A PROBLEM OF STRATIGRAPHIC GEOLOGY 

 BY H. S. WILLIAMS 



The subject of the paper was discussed bj^J. J. Stevenson. The paper 

 is printed as pages 177-190 of this volume. 



The sixth paper was 



A3IES KNOB, NORTH HA VEN, 31 A IN E 

 BY BAILEY WILLIS 



The paper was discussed by G. 0. Smith, H. M. Ami, and G. C. Curtis, 

 a visitor. It is published as pages 201-206 of this volume. 



Professor H. S. Williams took the chair, and the seventh and last 

 paper of the afternoon session was read, as follows : 



GEOLOGY OF BECRAFT MOUNTAIN, NEW YORK. 

 BY AMADEUS W. GRABAU 



[Ahstracl'] 



Becraft mountain, in Columbia count}-, New York, is an outlier of the Helder- 

 berg mountains. Its base is formed by the upturned and eroded rocks of the 

 "Hudson" group, chiefly the Normans Kill shales. Unconformably on this rests 

 the Manlius limestone (upper part), followed in turn by the members of the New 

 York Devonian up to and including the Onondaga limestone. A detailed geolog- 

 ical map had been prepared by the author for the New York State Survey, Depart- 

 ment of Paleontology, and was exhibited by permission of the state paleontologist. 

 The structure of the eastern and southern portions of the mountain, which is of 

 the Appalachian type, was discussed. The excessive folding and faulting of this 

 portion of the mountain was also illustrated. 



