GEOLOGY OF THE MERRIMACK DISTRICT, 579 



vein of white quartz near Capt. T. Fellows's. The top of Bean hill is also 

 mostly coarse granite, with only enough ferruginous mica schist to indi- 

 cate the north-west or west pitch of the mass. The mica schist has the 

 same position at the north base of the hill. The dip is io° S. i8° W. on 

 the line between Belmont and Northfield, where a tributary of the Tioga 

 river crosses it. The long narrow ridge from Hill's corner to Shaker 

 Village is gneissic schist, with a small dip. Possibly it is an anticlinal. 

 The north part of Canterbury has not been explored. 



Pittsficld, etc. In Pittsfield, Epsom, and Allenstown is the other 

 branch of the Strafford county area. At Pittsfield village the mica 

 schist dips south-west. At E. French's, a mile and a half south, we find 

 westerly dips, with small granite beds. On Catamount mountain granite 

 beds occur ; the dip is south-east, showing the presence of an anticlinal 

 axis. Near Webster's mills the railroad has cut through a ledge of 

 quartz similar to the bands that have been described above. The dip 

 is N. 75° W. On the east side are two hummocks of coarse granite, — 

 one of them seemingly cutting across mica schist, — dipping N. 30° W. 

 In Epsom the beds of granite are not uncommon, and they often carry 

 tourmaline. The dips along the Little Suncook river, near the east line 

 of the town, are north-westerly. There is an anticlinal in the south-west 

 corner of the town, in connection with some schists in Deerfield. Brush 

 hill, McKoy's, Fort, Nottingham, and Nat's mountains are composed of 

 these schists, and are supposed to dip north-west; but this is an impres- 

 sion from recollection only, not based upon recorded observations. In 

 Allenstown the ledges are not numerous, as deposits of drift are very 

 abundant. 



Between the Quarts Bands. The sections in Figs. 87 to 91 cross nar- 

 row strips of this mica schist, and have been already described in detail. 

 The rock is closely allied to the Montalban schists. Two bands appear 

 on the map. The first lies chiefly in Goffstown, and runs between the 

 Uncanoonucs, being over six miles long. Possibly it should be extended 

 farther north-east, to include the low-dipping schists on the west line of 

 Hooksett. The other starts from the middle of Goffstown, and extends 

 to New Ipswich, through Bedford, Amherst, Mont Vernon, Lyndebor- 

 ough. Temple, and Wilton, a distance of twenty-three or twenty-four 

 miles. It is a trifle over a quarter of a mile wide at its north-east end, 



