MUSEUM OF COMPARATIVE ZOOLOGY. 27 



as far south as Fry's Hill. The hills to the west of this range along the 

 southern border of the alluvial plain have not been examined, but from 

 the ftxcts just mentioned it is probable that boulders of this kind lie con- 

 cealed beneath the detritus throughout the whole extent of that part of 

 the Wyomanock Valley lying between Snake Hill and New Lebanon. 



Boulders of gray quartzite have been mentioned as occurring along 

 the western slope of the Canaan and Lebanon Range, and these seem to 

 occur over all the region of the green quartzite boulders, besides being 

 found also to the west of Snake Hill. It is probable that their origin 

 might be found upon the hills lying still farther to the northwest. 



Quartzite boulders, both green and gray, may be found in all parts of 

 the Shaker Valley, upon the Richmond Range, and in the Richmond 

 Valley ; upon the Lenox Range also, and in the Lenox Valley they may 

 be found here and there. Proceeding from Snake Hill to New Lebanon, 

 and thence to Lenox Village and Lake Mahkeenac, the whole distance 

 being seventeen miles, a continuous decrease in the number and size of 

 the quartzite boulders may be noted, and also a continuous increase in 

 the marks of abrasion which they bear. 



CHLORITIC SCmST BOULDERS. 



a. Principal Train. 

 L Distribution. — Upon Fry's Hill originates a train of boulders com- 

 posed of the chloritic schist of which the hill itself is made up. From 

 the summit of the hill the train descends in a S. 54° E. direction, then 

 bends gradually to the southward, till at the base of the range, one 

 fourth of a mile northwest of the North " Family" of Canaan Shakers, 

 it has a S. 27° E. direction. From this point the train extends just 

 south of the North Family, and up the face and along the crest of a 

 westei-ly spur of the Richmond Range, called Merriman's Mount, to the 

 crest of the Western Branch of the range. In so doing, it gradually 

 changes its direction to S. 68° E., with which, direction it crosses the 

 upper end of the Haskell Valley, and begins the descent of the eastern 

 slope of the Richmond Range. In making this descent, it bends consid- 

 erably to the south, crossing the main road in Richmond two miles north 

 of the railroad station, till it attains a S. 25° E. direction, near Mr. Oscar 

 Smith's house, where it crosses the Boston and Albany Railroad. From 

 the railroad the train continues on across the Richmond Valley with the 

 same direction, passing near Mr. Werden's house in the southeast part 

 of the town, and curving to the eastward as it mounts the western slope 

 of the Lenox Range, crosses its two parallel ridges, and descends into 

 the Lenox and Stockbridge Valley, where its direction is S. 50° E. 



