196 SURFACE GEOLOGY. 



The striae about Bible hill in Claremont need further mention. This hill rises about 

 350 feet above the plain of the village at its northern base. What is supposed to be 

 the normal direction is about S. 12° W., which occurs commonly west of the summit of 

 the hill for two or three miles, reaching beyond the Connecticut. North of the village, 

 it is S. 15° E. ; among the houses, S. 41° E. ; and on the east side of the hill, S. 23°-25° 

 E., in a valley leading to Unity. On the south slope of Green mountain, east of the 

 village, are intersections of the almost east course with that of about S. 12° E. On 

 the westerly side of the top of Bible hill the most common course is S. 6° E. with S. 

 25° E. This is half a mile east from Brown's, Clark's, and Stone's, where the westerly 

 course has been noted. We now proceed three fourths of a mile north-east to the 

 "Flat Top," a spur of the hill, with scarcely any depression between. At the com- 

 mencement, where the north-east slope begins, are stri^ S. 57° E. pointing back to 

 Little Ascutney, and crossing others S. 1° W. Next are some S. 46° E., pointing to 

 Ascutney, apparently marked on the lee side of striae pointing S. 1° W. to S. 1° E. 

 Another ledge has stride S. 46° E. crossed by others S. 1° E. ; then S. 16° E. crossed 

 by S. 41° E. and S. 51° E., the middle one the most common. Another ledge shows, 

 in a narrow compass, the courses S. 21°, 36° 41°, and 57° E. Where the courses are so 

 numerous, there is a marked tendency to irregularity ; the striae do not preserve their 

 parallelism. A change of ten or fifteen degrees in direction will occur in a distance 

 of less than a yard. Flat Top hill shows more of the irregularities than the highest 

 summit to the south-west. Near the aqueduct, at the base of Flat Top, the course is 

 S. 17° E. The impression was acquired at our visit that the south-east course cut 

 those running southerly. 



This is the most remarkable mingling of striee I have ever met with. It is obvious 

 that the field was crossed by the ice proceeding south-east and south, or from Ascutney, 

 and down the Connecticut. The first were also occasionally deflected still more to the 

 east by the large valley of Sugar river leading easterly to Sunapee lake. Some of the 

 intermediate courses might have been caused by the meeting of the two masses of ice 

 struggling to advance in different directions. Boulders from Mt. Ascutney are com- 

 mon to the north-east and east of Bible hill. The locality needs further exploration. 



A few other interesting localities will be mentioned next before we attempt to draw 

 the legitimate conclusions authorized by the list of stria?. 



Mt. Monadnock. 



This mountain possesses a conical shape, rising about 2,000 feet from 

 a comparatively level country, the elevation of the plain being 1,000 feet 

 above the sea. Its composition causes the striae and embossment to be 

 well preserved, while its isolated position illustrates one peculiarity of 

 the drift-action. My father first described it in the Proceedings of the 

 Americaji Association of Geologists and Naturalists, in 1842, in the geol- 



