194 THE CANADIAN NATURALIST. [Vol. X. 



A mile fjirther east along the post road, scratches' were detected 

 on similar rocks, having a course of east and west to north 70° 

 east. All the scratches correspond with those previously observed 

 in this vicinity. 



Between Belledune and Elm Tree Rivers the rocks are exten- 

 sively glaciated along the line of the Intercolonial Railway, as 

 stated in my former paper. A more detailed examination shows 

 that scratches occur everywhere within this area down to the 

 present shore of the Bay, the course being about south 80^ east. 

 To a height of 75 or 100 feet above tide level, the more exposed 

 rock masses have the striae obliterated, probably from the action of 

 the sea when it stood higher relatively to the land, and these 

 rocks were eroded by the waves and coast ice, and it is only od 

 the low-lying ledges which have been protected by a covering of 

 earth that the finer ice markings can be detected. Above the 

 level stated the exposed rocks still bear traces of ice action in the 

 moutonne form they present although they have been subjected 

 to atmospheric wear for long ages. 



In Robertville, which lies in rear of Petite Roche, and also in 

 the vicinity of the so-called Nigadoo silver mines, striae were found 

 with nearly an east and west course. In the St. Louise settlement 

 adjoining Robertville on the east striae were noticed trending 

 north 85^ east to north 80*^ east. It would seem as if the ice 

 sheet in its passage over this part of the district had been swerv- 

 ing round from a course having a southerly bearing to one north 

 of east. 



Southeast of the above-mentioned settlements in the area 

 extending towards Bathurst and Nepisiguit River striae were 

 observed in a jrreat many places, both on the front lots and also 

 in the Dunlop, Dumfries and Tattagouche settlements, as far 

 back from the coast as ten or twelve miles, with an average 

 course of north 25^ east. In the immediate vicinity of Bathurst 

 however, the striae have more northing and trend about north 

 20° east to north 22° east. 



All these striae aflford conclusive evidence, in the rounded form 

 of the ledges on the southwest sides, and in other respects that 

 they were produced by ice moving towards the northeast. They 

 likewise show a convergence towards the depression known as 

 Nepisiguit Bay. 



