GEOLOGY OF THE MERRIMACK DISTRICT. 569 



mile south of Horseshoe pond dip north-west. Near the town Hne, along 

 the Blackwatcr river, are micaceous and ferruginous schists, dipping 75° 

 N. 85° W. 



We may regard the anticlinal line by Webster lake as produced by the 

 presence underneath of the Salisbury gneiss ; — hence, in connection with 

 the development of that older rock in Salisbury to the south, and San- 

 bornton to the north, we observe a natural boundary between the Pemi- 

 gewasset basin and the area following the valley of Winnipiseogee river 

 to the lake. It will be noticed that this axial line points to the area of 

 Lake gneiss extending southerly from Squam lake in Center Harbor and 

 Meredith. 



Winnipiseogee River Range. This may be regarded as starting in 

 Gilford and terminating in Boscawen. It touches the lake south of 

 Sanborn's point. Near H. Hunt's, back upon the highest land near the 

 point, is ferruginous schist dipping high S. 85° E. There are micaceous 

 schists on a high hill south from L. Gove's, nearly two miles east from 

 Lake Village, dipping 5o°-6o° S. 80° E. The layers are minutely con- 

 torted. Half a mile east of Lily pond, near M. C. Dexter's, a very fer- 

 ruginous schist dips 45° N. 60° E. A mile back from Laconia village, 

 towards Saltmarsh pond, the rock dips 25° S. 20° W. Just back of Lake 

 Village there are several outcrops of schists, containing a few garnets 

 and stauroHtes, dipping 75°-8o° S. 40° E. At the south end of Lake 

 Village, the white looking rocks are of andalusite gneiss, dipping lo^-so" 

 S. 65° E. On top of the hill behind them the dip is 80° E. At the fork 

 in the road by J. Davis's, a mile south of the village post-office, the dip is 

 south-west ; so that there must be a synclinal or a fault here between 

 the two villages. Lake and Laconia. At J. M. Weeks's, at the west foot 

 of the northern Gunstock peak, the gneiss dips 50° S. At J. B. Morrill's 

 there is a north dip, the ledges about here being considerably distorted. 

 There are schists at Gilford village. Between Long bay and Round bay, 

 in Laconia, are ledges of mica and ferruginous schists, dipping 7o°-8o° N. 

 50° E., minutely contorted. A little east of the jail, between Round and 

 Great bays, is a gneiss dipping southerly. North of K. Hall's, near the 

 south line of Gilford, are ferruginous schists with the strike N. 60° E. 

 This is thought to be continuous to ledges of quartzite, ferruginous schist, 

 and granites near R. Randlett's and the cemetery in the north part of 

 VOL. II. 72 



