MUSEUM OF COMPARATIVE ZOOLOGY, 31 
north of the Richmond station, extends for a mile in a southeasterly 
direction. 
A small group lies at the corner next south of the Cheever Ore 
Bed, while in Stockbridge, two miles southeast of this group, and one 
mile from Mr. Butler's, along the road running along the west side 
of Lake Mahkeenac to Curtisville, begins another group, which extends 
for a mile and a half in an E. S, E. direction, passing along the north- 
ern shore of Lake Mahkeenae, and finally dwindling away and becom- 
ing imperceptible at a point situated about half a mile east of the 
bridge which crosses the eastern angle of the lake. 
The gaps in this train are still greater than those in the second, and 
the boulders are fewer and of smaller size. The largest boulders of the 
train, averaging ten or twelve feet in length, are in the most westerly 
group, and the smallest are in the most easterly, namely, along the 
shore of Lake Mahkeenac, where the average length is not over a foot 
and a half. In shape, and in freedom from abrasion, these boulders 
resemble those of the other trains. 
d. Minor TRAIN, 
, Another fragmentary train of chloritic schist boulders lies to the 
northwest of the principal train, its most westerly group being situated 
at the corners, a mile and a quarter north of Mr. Oscar Smith's, and the 
next being three quarters of a mile to the S. S. E., a few rods south- 
west of the bridge over the Boston and Albany Railroad. Half a mile 
east of Mr. Smith’s is another group belonging to this train, at the 
northern end of a swamp which extends in a S. S. E. direction, while 
half a mile distant, at the southern end of the same swamp, another 
group begins, and extends for three quarters of a mile to the summit 
of the Western Branch of the Lenox Range. Upon the western slope 
of Prospect Hill, Lenox, lies a small group of boulders, which is the 
most easterly of this train that has been observed. 
The boulders of this train are fewer than those of any of the others, 
there being, probably, not over a hundred in all, but in size, shape, and 
amount of abrasion they resemble those of the corresponding parts of 
the second and third trains. 
€. SUMMARY, 
Not a single chloritic schist boulder was found west of the crest of 
the Canaan and Lebanon Range, and it is probable that the four trains 
which have now been described include all the boulders of that rock to 
be found within the region studied, except occasional boulders scattered 
