350 HONEYMAN OX NOVA SCOTIAN GEOLOGY. 



which flows southwards and empties its waters into the Basin of 

 Minas. The present limitation of Folly Lake, the formation of the 

 beautiful valley on the north, the present watershed, the divergence 

 of the waterflow, and the existence of Wallace Eiver, may therefore 

 be regarded as possibly Post-pliocene, while the gravel beds may 

 be regarded as the representatives in formation and time, of these 

 formations that occur between the Triassic and Post-pliocene, as 

 well as the Post-pliocene itself. We thus give work and attribu- 

 table results to these mountain agencies which we find now in 

 operation and which we have no right to regard as quiescent from 

 the Triassic to the Post-pliocene period. 



Proceeding from Folly Lake we cross the Wallace River. 

 Gradually an enchanting view opens up. On the right is the deep 

 valley of Wallace Piver with the mountains rising on its eastern 

 side and the river flowing along at their foot, — as it still opens up, 

 it reveals a lovely panorama extending far and wide, which excites 

 the admiration of all travellers. We have reached the apparent 

 extremity of this granitoid band. Its last outcrop is seen in a 

 small nameless brook on the left side of the road. I have already 

 observed that this is 12,900 feet from the county line. 



Since leaving Truro we have made an enormous descent, 

 geologically, while topographically we have ascended 600 feet above 

 the sea level, the height of Folly Lake. Since leaving Folly Lake 

 we have descended topographically 124-45 feet, our position being 

 now 485-55 feet above the sea level. We are now on the northern 

 side of the Anticlinal. As we proceed farther we descend topo- 

 graphically and ascend geologically. 



The band succeeding has a loidth of 8,300 feet. Its first ex- 

 posure is in the opening of the Tunnel of Smith's Brook. The 

 rock is crypto-crystalline diorite. The finest exposure is in the Rail- 

 way cutting to the north of the brook. This cutting exposes equal 

 sections of rocks on either side of the line, their maximum height 

 along the road is 83 feet; the minumum 56 feet. The variety and 

 beauty exhibited by the walls are very striking there are magnificent 

 slickensides, the glistening of the rocks make them brilliant in the 

 sunshine. There are red Porphyries, crypto-crystalline diorites of 

 various shades of green — one band of diorite shows occasionally 



