Stone.] 450 _ [March 3, 
XVIII x. Mayfield — Brighton Kames. 
A broken series of short kames is found in the western part of 
Blanchard, and extends through Mayfield into Brighton. The con- 
nection would be easy between here and XVIII at Somerset Mills 
by the valleys of the Wesserrunsett and Kennebec, but thus far the 
connection cannot with certainty be traced. 
Length 8 miles. 
XIX. Upper Kennebec Valley System. 
We have here well displayed the destructive effects of the streams 
of the valley-drift period upon the kames. A series of gravel 
ridges is found along the Kennebec Valley from near the Forks to 
Embden. Most of these are ridges of erosion, that is, portions of 
the old flood plain, the river having cut deep channels, first on one 
side and then on the other of these ridges. Generally the aban- ~ 
doned channels are partly filled up, but there are a number of places 
where the old channel is still of its original depth, and here will be 
found a lakelet. Sections displayed where the river meanders from 
one side of the valley toward the other show that there is a belt of 
gravel and pebbles along the axis of the valley bordered on both 
sides by finer sediments. The abruptness of the transition from the 
coarser to the finer deposits, which is seen in some places, makes it 
probable that these central ridges are formed from the gravel of a 
kame, which was for the greater part re-classified by the river 
during the Valley Drift period; at least that there was a kame 
toward the north. Toward the south the sections are not conclusive. 
I doubtfully mark this central belt of gravel as re-classified kame as 
far south as Embden, a distance of about 35 miles. 
XIX m. Parlin Pond Kame. 
A kame nearly one mile in length. May have been deposited by 
currents flowing either north or south. 
XIX n. Kibby Stream Kame. 
Length about four miles along Kibby Stream, a tributary of Spen- 
cer Stream. ‘The latter flows into Dead River near Grand Falls. 
XIX o. Dead River — Jerusalem Kame. 
Extends along a low pass southwards from the great bend of the 
Dead River and past the eastern base of Mt. Bigelow. It disappears 
near the divide between Dead River and Carrabasset waters, but the 
extensive plains of sand and gravel found in the valley of the latter 
stream above Kingfield were probably in part a continuation of this 
system. But here, as well as at the great plains about North New 
nz 
ra, 
