294 BOARD OF AGRICULTURE. 



Between North Jay and Weld, via Wilton, the following varie- 

 ties of rock were noticed. Just south of Wilson's pond are ledges 

 of gneiss dipping 30° north-westerly. Mica schist is seen all the 

 rest of the way in Wilton and perhaps in No. 4. Then succeeds 

 a narrow strip of gneiss. In Perkins Plantation, or perhaps in the 

 eastern part of Weld, there is a limited patch of granite. In Weld 

 the prevailing rock is gneiss. We went to No. 6 in search of lead 

 ore, but failed to find the precise locality. The rock on the side 

 of Tumbledown mountain is gneiss, dipping 70° N. 30° W. A 

 large boulder occurs here, which is estimated to be thirty-eight 

 feet long, twenty feet high and twenty feet thick. The scenery of 

 Weld is charming. The village is surrounded by lofty mountains, 

 like an amphitheatre. Some of the peaks consist of naked rock, 

 affording thus a pleasing contrast to the universal green. Some 

 of these mountains are nearly three thousand feet in height. 



The rock is mica schist about Farmington, with the exception of 

 a few patches of granite. So it is up the valley of Sandy river. 

 Near the village of Strong the mica schist is well characterized. 

 Some of the strata yield copperas by decomposition, dipping 70° 

 S. E. Layers of limestone are common, interstratified with the 

 schists. Two of them occur back of the store, each several feet 

 wide. On the farm of Samuel Worthly other beds of similar 

 limestone were formerly burned for lime. A narrow band of 

 granite commences about four miles below Phillips, passes through 

 the village on the east side of the river, and continues up the val- 

 ley about a mile and a half. Fig, 46 shows how Fig. 46. 

 some of this granite changes into mica schist. 

 There is no seam or break between the two kinds /\\\\\\V-^'' 



of rock in the ledge, and no other indication of -<!\j^\\^^ V 1 n iJ 

 division than the sudden change from the dark f^il^J^ l i-i 

 colored schist to the lighter colored granite. This /ir 7\r<^ \ 2: 



eketch is taken from a ledge thirty feet high, by Mica schist and 

 the side of the road, north-west of the village of granite. 



Phillips. The granite band is invariably indicated by the presence 

 of large granite boulders which have fallen from the ledges. 



Two miles north of Phillips are two openings in a bed of white 

 azoic limestone, whose layers dip 35° northwesterly. Lead ore 

 has been obtained from one of them. We saw specimens of black 

 lead, copper and iron pyrites, from the excavation. Mr. Seward 

 Dill informs us that upon the top of a high hill north of Phillips, 



