46 STRATIGRAPHICAL GEOLOGY. 



rocks resemble more the Calciferous than those found elsewhere in the 

 town, and they dip S. 54° E. 75°, though the dip is by no means uniform. 

 The other outcrop is just west of Mrs. E. B. Tabor's, where the rock is a 

 wrinkled argillaceous schist, and the strike is N. 41° E. The bent strata 

 sometimes make the dip quite uncertain. This wrinkled argillaceous rock 

 outcrops in Hereford just north of the Vermont line, where it has both an 

 easterly and westerly dip, and it crosses over into Stewartstown at the 

 mouth of Hall's stream. Near the village of West Stewartstown, on the 

 south-east, the argillaceous schist dips N. 88° E. 80°, and, a mile east of the 

 village on the road south of the Connecticut, the same rock outcrops, but 

 more wrinkled than at the village, and dips N. 65° E. 80°. This rock, 

 with the exception of quartz, retains the drift striag better than any other 



in the state. 



Coos Group in Clarksville. 



On the road that runs south through the town, from the Connecticut 

 nearly to the height of land, the rocks are decidedly arenaceous, and have 

 an easterly dip. Near the eastern limit of the Coos, in the vicinity of 

 W. W. Chamberlain's, the rock is a wrinkled argillaceous schist, and dips 

 S. 41° E, 75°. The strata being so nearly vertical, and the rock so simi- 

 lar to that at West Stewartstown, and the intervening rock so decidedly 

 a calciferous mica schist, it suggests very strongly the idea of a syncli- 

 nal axis. At J. Gethercole's the rock is a calciferous mica schist, and 

 dips S. 40° E. At G. Tirrell's, very near the house, the rock is an argil- 

 laceous mica schist, and dips N. 66° E. 82°; but north of this there is 

 an intrusive diorite. The dip of the rocks elsewhere will be given on 

 the section passing through the town. 



Stewartstown. 



North-west of a line drawn from near the mouth of Bishop's brook, to 

 a point on the Connecticut just south of C. L. Morse's, the rock is a 

 wrinkled argillaceous schist. The central part of the town is a calcif- 

 erous mica schist. On the west side of Piper hill the rock is an ochrey 

 mica schist, and it has an easterly dip; but here, as southward on the 

 road towards Colcbrook, the strata are quite irregular. On Sargent hill 

 the calciferous mica schist, with hard, compact arenaceous bands, dips 

 S. 58° E. 68°. At a saw-mill, a little north of west from the "Hollow," 



