42 TMK K'K A<;i-: IX CANADA. 



a])]H'iirs, wlu'ii \v(> luavk the loi^alitics on ilie iiiap, tlial in 

 tho valli'V of \]\o Si. Lawrence and the risinj;' <i,roun(ls 

 boundinii: it. ll'*' lire\ailin,ii; course is soutli-west, and this 

 is also the prevalent direction in western \ew Voik, and 

 ht'hind the unreal Laurentide chain on the north side of 

 lake Huron. ("rossin_^ this sti'ialion nearly at ri^ht 

 {Uig'les, is a second set, which occurs in the neck of land 

 between (leort^'ian hay and lake Ontai'io, in llie valley of 

 the Ottawa and in the hilly districts of the Eastern 

 TownsJiii)S of the |iro\ince of (.^)uehe(', where it is con- 

 nected with a similar sti'ialion wh"''h is jire\alent in the 

 valleys of lake C'hanijdain and the (!(jnnecticut river and 

 elsewhere in New En,uland. In Xew Enu'land this 

 striation is said to have heen ol).ser\i'd on hills 4,(S00 feet 

 high, as for e.\ain])le on MansHeld iu(anitain, where, 

 accordiuLi; to Hitchcock, there are striae hearing S. .'»0 E. 

 at an elevation of 4,(S4S feel. In Xova Scotia and Xew 

 lirunswick, as in New England, the |»re\ailing direction 

 is south-eastward, though there are also south-west and 

 south striation, and a few cases where the direction is 

 nearly east and west. Kecent ol)servations lead to the 

 belief that in eastern Canada the south-west and north- 

 east striation is general on the lower grounds. The 

 south-east and north-west striation belongs nioi'e to the 

 higher grounds, and in some cases re})resents ice-How /// 

 firo directions, to the north-west and south-east of tiie 

 ridges of high land. 



It is obvious that such striation must have resulted 

 from the action of a solid mass or masses of ice bearing 

 for a. long time on the surface, and abrading it by means 

 of stones and sand. It is further obvious that the 

 different sets of striation could scarcely have been pro- 

 duced at the same time in any one locality, especially 



