2i8 The Ottawa Naturalist. [March 



twelve feet, covered near the base with boulder clay. Striae on 

 the same road a short distance to the east run S. 2*^ W. These 

 ridges do not extend for any great distance as far as could be 

 seen from the road, but on the next Concession road to the north- 

 west, I saw short ridges composed partly of boulder-clay and 

 partly of water-worn material, which were in the same line with 

 those just described but not continuous. Gravel ridges and 

 mounds occur near Beachburg and eastward and enclose small 

 lakes. Mounds partaking of the character of drumlins occur on 

 the road between Concessions VIII and IX, Wilberforce town- 

 ship. 



MORAINES. 



The Geology of Canada mentions ridges of glacial drift or 

 boulders running north and south and resembling moraines as 

 occuringat the Hudson Bay Company's post eighteen miles from 

 the head of Lake Temiscaming, at Long Sault just below the 

 Lake, at the mouth of the Maganissippi, about twenty miles 

 above the Mattawa, at Roche Capitaine, near Green's Creek, 

 and at L'Orignal where six ridges occur in less than a mile. 

 Alcng the south side of Mink Lake in Wilberforce township 

 there is an irregular mass which extends continuously more than 

 a mile and rises in places to thirty feet in height. It has an 

 average breadth of three hundred and fifty feet. It does not 

 rise .to a sharp ridge like those at Green Lake just referred to, 

 but is flat on the top and in some parts there are two or more 

 ridges parallel, or diverging at an angle of from lo"^ to 20^. At 

 the west end it is broken up into hillocks or mounds and at the 

 east end it is lower and bends toward the north loUowing the 

 shore of the lake, but it does not continue across the marsh at 

 the north east end of the lake. A low ridge which may be a con- 

 tinuation of it was seen to the east. Many large angular blocks 

 of limestone are .'eattercd over the surface, and sections both 

 transverse and lateral showed that it was composed of clay and 



