ir)4 THE ICE AdE IN CANADA. 



iiiid with ii fliiiiiiLo liltlo (lil'lerent from tliat wliicli it at 

 l)i'eseuL pussesstis.* In llie early glacial period, as well as 

 ill the .i^reat suhiuergeiice oi: the later I'leislocene, its 

 waters must have received coiitrihiiLi<JUS of ice, not only, 

 as at present, from (Jreenland, l)ut also from the northern 

 l»arts of the Cordilleran and Laurentide glaciers, and 

 tiiere must hiivc hceii imiiKinse accumulations of Held-ice 

 ill the region of Hudson's hay and northward, wliicli 

 ])oured its supcrahundance around holh ends of the 

 Laurentides, and, in the times of greater sulimergenee, 

 prohahly forced its way through many gaps into tiie 

 region of the great jtlains and the interior continental 

 plateau south-west of the St. Lawrence valley and great 

 lakes. 



bearing in mind these various local conditions, which 

 result from the hicts .stated in previous cha}>ters, we sliall 

 be prepared to appreciate tiie corroborative and otherwise 

 interesting facts which appear in tlie following local 

 details. 



//. — j\'cii'foiiinU((ii</ nil)/ Lalirathr. 



In the doiirnal of the ( n'ological Society of London for 

 February, 1871, is a communication from Stalf-commander 

 Kerr, U.X.,in which h(! gives the directions of twenty-eight 

 examples of grooved and scratched surfaces observed in 

 the southern i)arL tif Xewfoundlaiid. The course of the 

 majority of these is X.K. and S.W., ranging from X. <S^ E. 

 to N. G4^ E. The remainder are X'.AV. and S.E., most of 

 them with a predominating easterly direction. IJoulders 

 are mentioned, but no marine l)eds. The author refers 



* Tliis is proved l)y the traiispoi-t of boulders to tlie north, by the 

 temperate oliaracterof the flora to the soutli of it, and by the continued 

 existenoe in it of tlie nuininiotli aiid its companions. 



