SO-CALLED " EAISED BEACHES ' ' IN DEYOX. 44o 



he thought the shells showed them to he tolerahly old. He thought 

 the deposits might have heen formed hy agents now in operation 

 along the same coast, though they certainly differed from any other 

 " raised beaches " with which he was acquainted. 



The AuTHOK, in reply, stated that evidence of extreme glaciation 

 was not to he expected. He thought the " head *' was formed during 

 the passing away of glacial conditions, and referred, in corroboration 

 of his views, to Dr. J. Geikie's work. He had seen sand and shingle 

 thrown to a great height, but never fragments of broken shells such 

 as those exhibited. Col. Eeilden and Dr. Moss distinctly stated that 

 materials were thrown over the ice-foot. Mr. Eeid had touched the 

 true difficulty ; for there were several Southern shells, such as 

 Adeorhis, present, and the general assemblage was not a northern 

 one ; but too much might easily be made of this, while he had 

 himself relied chiefly upon the physical evidence to show that the 

 deposit was not a true beach. 



