1880.] 447 . [Stone. 
Brownville. This kame possibly joins XI ain Medford, but is pro- 
visionally marked as a distinct system. 
XIU m. Katahdin Iron Works Kame. 
About five miles long; situated in the valley of the west branch 
of Pleasant River, above Katahdin Iron Works. Probably this also 
isa branch of Xla. Yet there are a few signs that the ice lingered 
in these mountains longer than on the lowlands, and hence these 
may be of later origin than XI a. 
XI. Lilly Bay — Sebec System. 
This system leaves Moosehead Lake at Lilly Bay and finds its way 
by a crooked route along low passes to the valley of Wilson Stream, 
which it follows to Sebec Lake, or beyond. This also may be a trib- 
utary of Xa. Length at least 25 miles. 
XIV. Corinna — Dixmont System. 
This system crosses the Maine Central R. R. at East Newport. It 
ends at the south in a sand and gravel plain in Dixmont. This kame 
crosses two transverse ranges of hills seventy-five and one huhdred 
feet high, respectively. Near the top of the hills the kame is strati- 
fied but nearly disappears. In the valley between the hills it is 
larger but seems to be pell-mell in its structure, at least where ex- 
posed. North of Plymouth this kame goes over a hill seventy- 
five feet high, when a very little deflection to one side would have 
taken the kame-stream through a low valley where there would be 
no hill to cross. Length 20 miles. 
XIV x. There are a few short gravel ridges in Troy and the west- 
ern part of Dixmont which may belong to system XIV. 
XV. Hartland — Searsmont System. 
This kame begins near Hartland village, and extends quite contin- 
uously through Palmyra and Pittsfield to Unity. It is everywhere 
bordered and in part covered by marine sands and clays. Although 
passing through a level region it shows many abrupt meanderings, 
From Unity southward to near Thorndike Station, there are only a 
few exposures of gravel along the valley of Sandy Stream. This 
valley is deeply covered with sands and clays, partly of marine depo- 
sition, and probably in part deposited by the stream itself. This was 
near the shore line of the Champlain sea, where tidal currents would 
sweep back and forth with great violence. Near Thorndike Station 
the kame rises out of this valley and extends southward along the 
side of the hills which border the valley of Half Moon Stream on the 
west. In Knox this valley turns southwesterly, while the kame keeps 
