464. J. D. Dana—‘Kames” of the Connecticut River Valley. 
figure of the section of the kame here exposed to view, it is 
made to consist of somewhat arched beds, with alternations of 
coarse stony layers and finer material alike from top to bottom. 
found the bedding horizontal, like that of the eastern of the 
bluffs ; its beds,"composed largely of sand and fine gravel, with 
but few of cobble-stones; and the top portion made of very 
fine sand, identical in its light color, fine straticulation and other 
features, with the top portion of the eastern bluff. The latter 
bluff differs in consisting throughout of stratified sand, and this 
difference between the deposits near the river and those more 
remote is not uncommon. 
Prof. O. P. Hubbard, of the Medical School of Dartmouth 
College at Hanover, and form merly Professor of Chemistry and 
Geology in the Academic Department, has obtained for me the 
ee additional facts respecting the region of the supposed 
am. 
He states that no coarse gravel or cobble-stone beds exist along 
the top of the “kame” south of the above mentioned section 
for the half mile to Mink Brook, and none north of the same 
ence of a “kame,” fails in these portions. Farther north, 
of cobble-stones, and two to three hundred yards beyond 
this, across a deep cut leading to the river, a grass-covered 
knoll made up of coarse gravel and cobble- stones, some of the 
stones a foot or more in diameter. The knoll was found by 
measurement to be fifteen feet high above the terrace-plain ; it 
marks the spot which is made by ed the highest part of 
the kame, 556 feet above mean-tide level. of. rd 
ascertained with a spade that the knoll was composed of coarse 
gravel, and rested on fine sand or sandy loam like that which 
makes the top portion of the terrace-formation between there 
and the village and also at the bluffs described above and else- 
where. He concluded, therefore, that the coarse cobble-stone 
deposit was but 15 feet thick ; and, from the level of the other 
cobble-stone area, that the latter corresponded i in position to the 
lower portion of this deposit. In the deep cut between the 
two cobble-stone areas the beds are not exposed, but no stones 
show peer ait and the material was evidently of the same 
fine sandy na Just south of the more southern area three 
large oseaene ons have been made on the east side of the 
“kame” ridge to its top, for filling a bog, and these show 
only sand; but the northern is so near the cobble-stone layer 
that some of the stones have fallen into it. The evidence 
obtained by Prof. Hubbard thus appears to prove that the 
coarse gravel of tle two areas is ouly the top deposit of the 
terrace-formation, such as characterizes in many other places 
its riverward portion. 
