6 THE ROYAL SOCIETY OF CANADA 



geological age of this glacial deposit on the ground that it was accumu- 

 lated at the close of the Devonian period. He describes a pre-existant 

 "Complex" of pre-Cambrian and early Palaeozoic rocks, as being the 

 foundation on which this old glacial deposit was based, and evidently 

 looks upon it as parallel in its origin to the deposits at the base of the 

 Cambrian in Scandinavia, and to the Triassic of the eastern hemis- 

 phere, which have been thought to be of similar glacial origin. 



