rd 
in the vicinity of Great Barrington, Mass. 271 
cases, as if it were a bed overlying quartzite No. 6; and this 
it is, unless there is a fault between the two. The quartz- 
ite of patches Nos. 5 and 6, having the dip in opposite direc- 
tions, may be parts of one bent layer; for the thinness of the 
bed No. 6 may be only the thinness of the hard part of the 
. bed, a soft upper portion having been removed. Hence, 
while my previous fa ar are sustained by Canaan facts, 
they are wrong only because facts elsewhere observed have 
passing into gneiss. I have not found any quartzite stratum, 
but it is possible that the soft kind may be concealed beneath 
the high grassy slope of the north side. Canaanite, or white 
augite rock,* occurs in many places in the upper part of the 
underlying limestone.+ 
ce. South Canaan and Falls Village. 
what may be called a spur of Canaan Mountain, named Cobble 
Hill. This hill consists beiow, to the west, of quartzite, dip- 
nattaite, 20 to 25 feet of which are exposed above the road, 
_ *Both tremolite and white augite occur in the Canaan region. The Canaanite 
18 @ massive form of the Joins as first obsefved by Prof. ©. U. Shepard, in his 
Unconformable. It is quite possible that within this 200 yards, where the rocks 
concealed from view, there is a bend in the limestone, bringing it into 
