Scns 
IN ROCKS OF DISSIMILAR ORIGIN. 3d41 
The Prusipent remarked that many rounded grains of glauconite 
were not formed by the infilling of Foraminiferal cavities. 
The Avruor, in reply to the President’s remarks, stated that he 
had not studied the relation between the size of the grains of sand 
and their degree of rounding. He agreed with the President as 
to his views on the subject of glauconite grains. In reply to 
Professor Bonney, he stated that some of the cases to which he had 
directed attention were rather exceptional, and that in the majority 
of instances no such difficulties as those to which he had alluded 
are met with. He considered that many of the rocks hitherto re- 
garded as pyroclastic really consist of volcanic ejectamenta, but. 
that there was often great difficulty in demonstrating this assump- 
tion. In reply to Dr. Hicks, he expressed a belief that the fossils 
of the Coniston series indicate former deep-sea conditions. 
Q.J.G.8. Ne. 138. 2A 
