GLACIAL PHENOMENA IN MAINE. 149 
on the west side of Somes’s Sound. Denning’s 
Pond, which I have examined more in detail, 
lies between Dog Mountain and Defile Moun¬ 
tain. The road along the lake follows the 
eastern or left lateral moraine of the glacier 
which once filled its basin; and the lake itself 
is hemmed in by a crescent-shaped terminal 
moraine at its southern extremity. The lakes, 
eleven in number, intervening between the 
other mountains, are likewise bordered by 
moraines. We have thus satisfactory evidence 
that at an early period of the retreat of the 
great ice-field covering this continent, when it 
no longer moved over the highest summits of 
the land, local glaciers were left in the gorges 
facing the sea. 
We have thus traced the glaciated surfaces 
over the whole width of the State of Maine, 
and over a part of its length, in a narrow 
track some hundred miles in extent, from the 
Katahdin Iron Works to the southern shore 
of Mount Desert, where they are lost in the 
ocean. I have, however, suppressed a great 
amount of evidence which could not easily be 
presented without maps and sections. I may 
have an opportunity of publishing what has 
