638 ALFRED IV. G. WILSON 



otherwise monotonous landscape. From Kasba and Daly lakes the country 

 has a general and moderately regular slope northeastward until it reaches 

 the highest raised beaches or post-glacial shore lines, after which the slope is 

 more directly eastward toward the present shore of Hudson Bay. (34, p. 158.) 



Elsewhere he writes : 



The northeastern part of this region is underlain by crumpled and dis- 

 torted Archcean rocks, whose surface has, even in pre-Cambrian times, been 

 reduced to an undulating plain, with very slightly accentuated contours. 

 (35. P- 148.) 



Fig. id. — Sifton Lake and Cairn on Musk Ox Hill, District of Mackenzie. 



{Photograph by J. W. Tyrrell, igoo.) 



Again, in a note on the Pleistocene of the Northwest Territories 

 of Canada, Tyrrell writes : 



In general physical features the "Barren Lands" often closel}' resemble the 

 great plains west of Manitoba along the line of the Canadian Pacific Rail- 

 way, being undulating grass-covered country, underlain by till more or less 

 thickly studded with boulders ; but a hard granite knoll projecting here and 

 there serves to remind one that the till is not here resting on soft Cretaceous 

 shales and sandstones and at once accounts for the much greater abundance 

 of boulders. In some places the surface is composed entirely of large sub- 

 angular boulders, without any matrix of sand or clay, while the shores of 

 Chesterfield Inlet, and part of the northwest coast of Hudson Bay, are bold 

 and rocky. (33, p. 395.) 



4. Drai7iage features. — A feature characteristic of the present 

 drainage of the peneplain everywhere from Labrador to northern 

 Keewatin and Mackenzie is that the upper courses of all the riv- 



