78 THE ICE AGE IN CANADA. 



the equatorial current between North and South America, 

 all of which suppositions are substantiated by known 

 geological facts, more especially the occurrence of Pleisto- 

 cene fossils at high levels, and of the same species of 

 modern shells on the Atlantic and Pacific shores. Follow- 

 ing the example of those geologists of the United States 

 who are in the habit of giving a factitious reality to their 

 paleeogeographical views, by attaching names to extinct 

 lakes, etc., we may name some of the more prominent 

 features of our map after eminent living advocates of 

 extreme glacial views, whose personal merit and ability, I 

 am prepared to admit, are in the inverse proportion to 

 the probability of their theoretical views. The great 

 southern bay, at the bottom of which lies the " terminal 

 moraine," may bear the name of Dana. The strait 

 leading to the north-east, where the St. Lawrence now 

 flows, may be Upham strait. The great western opening 

 may well be called Chamberlain sound, and the northern 

 bay, filled with ice in the region now occupied by 

 Hudson's bay, may be the gulf of Wright. The greater 

 islands will be respectively Cbrdilleran and Laurentide 

 lands, fit companions of Greenland ; and the smaller 

 eastern island, Appalachia Infelix. Thus will be com- 

 pleted the rough general outline of one map of America 

 in the age of the boulder-clay. Eespecting Dana bay 

 and Wright, bay on the map, it is evident that the 

 heavy ice-fields borne down by the arctic current and 

 north-west gales, and the bergs derived from the moun- 

 tain glaciers, would choke them with continuous masses of 

 ice of enormous width, the pressure of which would pile 

 up heaps of broken ice full of stones and earth on their 

 shores, and would exert a mechanical force much greater 

 than that of ordinary glaciers, so that morainic accumula- 



