600 HIGH-LEVEL GRAVELS TX BERKS AXD OXOX. ['NoV. 1 898, 



Shingle not so much by the presence of quartz-pebbles as by the 

 absence of stones derived from the Bunter pebble-beds. He agreed 

 with the Author that much of the smaller material of the Westletou 

 Shingle was probably derived from the Greensand pebble-beds. 



Mr. A. E. Salter was glad to find that the results of the Author's 

 detailed study of the gravels associated with Goring Gap were in 

 general accordance with those to which he had come after a careful 

 study of the Drift-deposits of Southern England. He did not 

 think that the Ardennes were the source of the materials con- 

 stituting the higher drifts of this area, and was much interested in 

 the Author's remarks on that region. The locality mentioned by 

 the Author in which Southern and Northern Drift are associated 

 was especially interesting, and seemed to point to a confluence 

 of the Xorthern and Southern Drift-streams at that point. He 

 thought that the Author, besides noting difi'erences in the character 

 of the constituents, might also pay attention to the differences in 

 level of the same kind of gravel over a wider area. Igneous 

 rocks similar to, if not identical with, the devitrified pitcbstone 

 or rhyolite, of which the Author had exhibited sections and spe- 

 cimens, had been found by him at Xorcot, Aldeburgh, and other 

 Drift-localities. 



The Presidext and '^h\ P. W. Hardier also spoke. 



The Author said that he thought it possible that the Woodcote 

 gravel might represent an. early breach of the Chalk-escarpment, 

 and in that sense he had connected it with Goring Gap. The term 

 used waSj perhaps, not the best that might have been chosen. 



