28 THK ICE A(JK IN CANADA. 



COMPAUATIVK TABLE. 



Montreal null hirer Rt. Xorlh shore of Lake Belly rirer, North- 

 Lan'rencc, Ontdrio. irest Territory. 



J. Wfti. Dawson. J. (i. Hinde. (4. M. Dawson. 



I. I. I. 



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

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



II. II. II. 



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



Saxicava sand and Laminated clay. Up- 



gravel. Houldera in per boulder deposit. 

 and below sand. 



III. III. III. 



Upper Leda clay, Stratified sand and (! ray sand w ith iron- 



mcarine shells and drift clay, with fresh-water stonenodules. Brown- 



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



o clay, marine shells and bonaccous layers and 



drift plants. peat. Gray sand and 



(3h i ironstone. 



i IV. IV. IV. 



Lower boulder clay Lower boulder clay Lower boulder clay, 

 or tin. 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. 



Palaiozoic rocks, Palaeozoic rocks, Cretaceous beds, 

 often striated. often striated. 



Taking a somewliat more general view, the whole 

 pleistocene deposits of eastern Canada may be tabulated 



in descending order as follows :- 



