GEOLOGY OF THE MERRIMACK DISTRICT. 589 



east side is a broad, white feldspathic band, with the dip of 50° W. This 

 extends south-east to the cross-roads near A. Sargent's. This band must 

 be three fourths of a mile wide. At J. Neil's and G. Barney's, near the 

 south-west corner of Canterbury, is a mica schist, dipping 75° S. 15° W. 

 In the edge of Concord is a very ferruginous schist, dipping 70° N. 50'^ 

 W. Nothing is known of the extreme north-east extension of this rock 

 in Canterbury. Its limits are marked on the map at random. 



In Boscawen the ferruginous schists occur at the village, dipping east. 

 The most western outcrop is near a saw- and turning-mill, next W. B. 

 Burpee's, and it reaches northerly to Salisbury. Back from Fisherville, 

 among the houses, is a slaty, ferruginous rock, dipping 35° N. 30° W. 

 Several ledges occur for a mile. At L. Morrison's the quartzites are 

 interstratified with andalusite bands, dipping 70° N. 20° W. There is a 

 feldspathic ledge here, also. Taking a deserted road towards Horse hill, 

 we pass gneissic rocks just at a brook-crossing, the dip being north-west. 

 In Concord the dip is 78° N. 40° W. At Mast Yard ferruginous slate 

 dips 55° N, 65° W. It occupies most of the west edge of Concord, next 

 Hopkinton, and the whole of Hopkinton south of the Contoocook river. 



There are some indications of soapstone at a school-house by Mrs. J. 

 Butterfield's, at four-corners in the west part of the town, dipping north- 

 west. Between D. Tucker's and R. P. Copp's, farther west, is a repeti- 

 tion of the white feldspathic rock seen in Canterbury, which dips to the 

 north-west. The rocks on the north side of the Contoocook are crossed 

 by Section IV, and include the soapstone at Davisville in the south-east 

 corner of Warner, The schists here dip S. 50° E., and they crop out 

 strongly on the east side of Warner river in Webster. The soapstone is 

 certainly twenty feet thick, and has been quarried slightly. About on 

 the south town Hne of Warner flinty schists dip 65°-70° N. 6t>° W. This 

 rock crops out at the shingle-mill, and at Annis's and Rand's, with fibro- 

 lite. On the hill south of Bear pond in Warner, hard quartzite schists 

 dip 75° S. 70° W. Similar ledges crop out on the hill to the west of J. B. 

 Colby's in the north-east corner of Henniker. Near J. Foster's, a mile 

 west of Gove's pond, the dip is 80° N. 73° W. South of the Contoocook 

 in Henniker are several exposures of mica schist thought to belong to 

 this formation. At the old railroad crossing, a mile north of the Weare 

 line, is a massive rock dipping 10° N. W. South of A. D, L. F. Connor's 



