28 THE ICE AGE IN CANADA. 



COMPARATIVE TABLE. 



Montreal and lower St. North shore of Lake Belly river, North- 

 Lawrence. Ontario. west Territory. 

 J. Wm. Dawson. J. G. Hinde. G. M. Dawson. 



I. I. I. 



Surface soil, post- Surface soil, strati- Surface soil and 



glacial alluvia & peat, fied sand and gravel, prairie alluvium. 



II. II. II. 



Surface boulders. Boulders, sand, etc. Upper boulder clay. 



Saxicava sand and Laminated clay. Up- 



gravel. Boulders in per boulder deposit, 

 and below sand. 



III. III. III. 

 Upper Leda clay. Stratified sand and Gray sand with iron- 

 marine shells and drift clay, with fresh-water stone nodules. Brown- 

 plants. Lower Leda shells and plants. ish sandy clay. Car- 



o ' clay, marine shells and bonaceous layers and 



•| drift plants. peat. Gray sand and 



ironstone. 



IV. IV. IV. 



Lower boulder clay Lower boulder clay Lower boulder clay, 



or till. Many native or till. Native and Many travelled bould- 



and some travelled travelled boulders. ers. 

 boulders. A few ma- 

 rine shells of arctic 

 species. 



V. V. V. 



Palaeozoic rocks, Palaeozoic rocks. Cretaceous beds, 



often striated. often striated. 



Taking a somewhat more general view, the whole 

 pleistocene deposits of eastern Canada may be tabulated 

 in descending order as follows : — 



