60 STRATIGRAPHICAL GEOLOGY. 



at Little Boys' falls, the outcrop seems to be continuous at least as far 

 north as opposite Mt. Kent. The dip is westerly where observations 

 were made on the Magalloway. On the east line of the College grant, 

 on a ridge a mile south of the north-east corner of the grant, the rock 

 is a mica schist, with garnets, and dips N. 85° W. 70°, Along the ridge 

 of Half Moon mountain, with the mica schist, there are bands of horn- 

 blende schist; the dip is N. 30° W. 75°. On the state line, on a ridge 

 extending east from the Diamond Peaks, mica schist dips N. 85° W. 40°. 

 On a ridge extending to the Magalloway, south of the great bog in the 

 College grant, the rock is hornblende and mica schist. The dip is quite 

 generally W, 75°. On the Swift Diamond, in the narrows at the dam, 

 there is a gneissic mica schist, resting on mica and hornblende schists, 

 that dips N. 30° W. 62°. At the mouth of the Little Dead Diamond 

 mica schist dips N. 78°. This is followed on the west by a granitic 

 gneiss ; this is a narrow band. West of this is a band of fine-grained 

 gneiss, resembling the Lagen gneiss of Von Cotta, that contains fine 

 crystals of staurolite. This rock, as we go west, passes into a mica 

 schist, and in the edge of Dixville it contains an abundance of garnets. 

 The rock that succeeds it on the west, as far as our observations extend, 

 is a gray siliceous schist, which is the rock of Dixville notch. Li the 

 north-west corner of Dixville there is an area of gray siliceous schist, 

 resembling the hydro-mica schist, that dips generally S. 6S° E. 80°. 

 North of the Swift Diamond, two miles from Diamond Pond, a bluish 

 gray siliceous schist dips S. 83° E. 80°. The rock has essentially the 

 same dip to Dixville notch. A mile and a half north-west of the Notch 

 there is a small area of an argillaceous schist, very fissile and containing 

 pyrite, which dips S. 48° E. 75". On the old "tote "-road from the Notch 

 to the Swift Diamond, just north of the height of land, a gray siliceous 

 schist dips N. 62° W. 72°. On the ridge south of the Notch, and extend- 

 ing into Ervin's Location, the rock is a siliceous schist, that sometimes 

 contains staurolite, and on its southern border it dips south at a high 

 angle, and northward the dip is generally a few degrees east of south, the 

 strata everywhere being nearly vertical. The high ridge south of Cas- 

 cade brook and west of Clear stream is the same rock as that of the 

 Notch. The hornblende schist at the Whittemorc place has been men- 

 tioned; its dip below is S. 70° E. 69°. 



