196 PROCEEDINGS OF THE CANADIAN INSTITUTE. 



Lake, and boulders of white quartzite are very numei'ous at the 

 Methy or Long Portage, still further to the south-west. 



Our visit to Marble Island was so short that I had only time to 

 examine the western part, the whole of which consisted of different 

 varieties of light-colored quartzites. The rocks being free from 

 lichens or staining, both the shores and the hills in the interior haA'-e 

 a uniform white appearance, which might be taken for that of snow, 

 but for the strong contrast due to the dark brown of the peaty de- 

 pressions. The stratification is usually very massive. Ripple-marks, 

 varying from coarse and wide to fine and narrow, were observed on 

 the surfaces of many of the beds, especially the thinner ones. 



Near the south-western point of the island the quartzite presents 

 beautiful lilac colors of various shades. Here the direction of the 

 dip is N. 5° E., true (the magnetic variation being 5° W.), and the 

 inclination 80° from the horizontal plane. At the north-western 

 point the direction of the dip is N. 80° W., true, and the inclination 

 45°. This is also the prevailing direction and angle in the interior 

 of the west end of the island. But on the north shore, opposite the 

 harbour on the south side, the direction is N. 65° W., true., and the 

 inclination 40°. It will thus be seen that the strike of the bedding 

 varies considerably in different places. It was further observed that 

 although the general course of the I'ocks might be tolerably straight 

 locally, the lines of stratification undulated a good deal, the minor 

 sinuosities appearing on smooth sections as mere corrugations of the 

 lamination. 



On Deadman's Island, the white quartzites pass into grey, and 

 these rocks are associated with a dark glossy micaceous schist, all 

 striking N. 80° W., true, or dipping IST. 10" E., at an angle 



of 90°. 



In the course ot my examination of Marble Island, I observed the 

 debris of a variety of Huronian rocks, including the brown- weathering 

 dolomite of that series, strewn upon the surface, from which it was 

 inferred that these rocks would be found in situ at no great distance 

 in the direction from which the drift had come. Since my visit to 

 the island I have received from a friend a most interesting collection 

 of lithological specimens, representing the fixed rocks of the coast 

 from Chesterfield Inlet south-westward to Eskimo Point (where the 

 rocky shore terminates), embracing a distance of about 180 statute 



