376 STRATIGRAPHICAL GEOLOGY. 



Much of the mountain is bare, and, as seen from the road, looks alto- 

 gether like slate. There are large boulders of an interesting conglom-, 

 erate of quartz pebbles in a brook crossed by the road east of Mt. Tug, 

 which must have come from this range. 



East Lebanon Areas. I regret never to have worked out the relations 

 of several small quartzite areas in the east part of Lebanon, etc., the first 

 of which is in the line of the Moose Mountain rock, after its westerly- 

 bend. It is probable it is a repetition of the same band, by folding, per- 

 haps, under the synclinal which is observable between the sides of the 

 valley by Walker's slate quarry in Hanover. A friable sandstone, from 

 fifteen to twenty feet thick, known in the neighborhood as the "Sand- 

 hill," is a landmark on the sloping ridge west of the slate quarry. On 

 the south side of the valley, back of J. W. Cleveland's, is a hard quartz, 

 often showing constituent pebbles, twenty-five feet wide, and carrying 

 mispickel. At one place it has been broken, and one end shifted about 

 twenty-five feet. The dip is 75° N. 75° E. On climbing the hill, it is 

 again seen before coming to I. Eastman's. The argillaceous schists about 

 it are much twisted. A quarter of a mile south of Eastman's is a short 

 piece of quartzite, which looks as if it had broken out of the long reach 

 of this rock, continuous for three or four miles S. 8° E. from the sand-hill. 

 This fragment dips 60° N. 20° E. West of A. P. Hoyt's, the range is 

 continuous for more than a mile to the Enfield line. Two other outcrops, 

 apparently belonging to the same range, are just south of Stony brook 

 and near a church in the south-west corner of Enfield. This would seem 

 to be continued in the area west of school-house No. 14 in Plainfield, on 

 the course of Ring brook, if extended. An outcrop west of Leavitt pond, 

 in the edge of Grantham, appears to be the continuation of the Lily Pond 

 (Enfield) exposures. That at the Grantham Lily pond is obviously con- 

 nected with the Croydon Mountain mass, and perhaps another small one 

 south-west from Sugar hill. There remain two others not yet mentioned. 

 The first is a quartz conglomerate, about a mile above the mouth of Stony 

 brook in Lebanon; the other is south of East Plainfield, — and both are 

 equahy distant from the other ranges. It may be that the suggested syn- 

 clinal at Walker's quarry is continued southerly, so that the Enfield and 

 Stony IBrook ranges are the same, uniting again in Grantham or Croy- 

 don mountains. In that case, the two more western outcrops might be 



