SOME LOCAL DETAILS. 



169 



or from the similar hills to the east and south. In like 

 manner, the long ridge of trap rocks, extending from cape 

 Blomidon to Briar island, has sent off great quantities of 

 boulders across the sandstone valley which bounds it on 

 the south and up the slopes of the slate and granite hills 

 to the southward of this valley. Well-characterized 

 fragments of trap from Blomidon may be seen near the 

 town of Windsor ; and I have seen unmistakable frag- 

 ments of similar rock from Digby neck, on the Tusket 

 river, thirty miles from their original position. On the 

 other hand, numerous boulders of granite have been 

 carried to the northward from the hills of Annapolis, and 

 deposited on the slopes of the opposite trappean ridge ; 

 and some of them have been carried round its eastern 

 end, and now lie on the shores of Londonderry and 

 Onslow. So also, while immense numbers of boulders 

 have been scattered over the south coast from the granite 

 and quartz rock ridges immediately inland, many have 

 drifted in the opposite direction, and may be found 

 scattered over the counties of Antigonish, Pictou and 



stratified gravel on V)Oulder-clay, Merigonish, N.S. 



Colchester. A few boulders, apparently of Laurentian 

 rock from Labrador, occur on the north coast of Nova 

 Scotia, and Dr. Honeyman has recorded similar boulders 

 near Halifax on the Atlantic coast. These facts show 

 that the transport of travelled blocks, though it may here 

 as in other parts of America have been principally from 



