534 STRATIGRAPHICAL GEOLOGY. 



mile north-east from the centre the gneiss shows itself at the crossing of 

 Willow brook. Other ledges occur on the hill west of Bagley pond, as at 

 J. L. Mason's, dipping north-west at a small angle. Willow brook flows 

 for more than a mile through swampy land in the north part of the town. 

 On taking the road to Mt. Kearsarge, from Warner, we find gneiss at the 

 point of starting, with a north-westerly dip. On top of the first consider- 

 able hill, at S. C. Pattee's, the compact gneiss dips 80° N. 30° W. There 

 is more of this rock at the south-west corner of Salisbury, and at the 

 crossing of French brook, near J. George's. This is the northern limit of 

 the formation. It is succeeded by vertical masses of andalusite schists, 

 with strike N. 30° E. Sawyer's hill and the south-west part of Salisbury 

 are supposed to be underlaid by this same gneiss. The last mile of Ste- 

 vens brook, in Warner, shows the same rock, more especially between 

 the tributaries called French and Meadow brooks. There is a ledge at 

 the Sutton line, also, which adjoins the porphyritic gneiss. Between 

 French brook and the village of Warner the rocks are concealed by 

 coarse alluvial and drift deposits, which are very extensive. Taking the 

 road towards Bald Mink we first see gneiss with a north-westerly dip close 

 to the river, then 70° N. 52° W., near E. W. Sargent's. The same rock 

 continues to the height of land south of Bald Mink. Others are to be 

 found constituting two hills, — one having three Davis houses upon it, and 

 the other west of G. Foster's. The next is a little west of Levi Bartlett's. 

 Others, perhaps the most south-eastern in this area, occur in " Joppa," be- 

 tween the school-houses, with a south-east dip. The rock is a mica schist, 

 and at W. Danforth's there is a small bed of limestone associated with it. 

 It is probable mica schists intervene between Danforth's and the locality 

 of limestone west of Pleasant pond. The latter bed is associated with 

 quartz, and has been burned once for the manufacture of quick-lime. 

 The bed is twelve feet wide. The rock adjacent is a mica schist, dipping 

 70° S. 70° E. West of Tom pond, in Davisville, is a gneiss much like the 

 Concord granite. These schists, with the quartz and limestone, will be 

 represented upon the map as Montalban. Well defined gneisses often 

 make their appearance on the hills on the south-west side of the railroad, 

 between Davisville and Warner lower village. 



The conclusion as to structure derived from these observations is the 

 existence of an anticlinal line from the Bagley pond area of porphyritic 



