1880.] 453 [Stone. 
near West Winthrop, and another in the town of Jay, all of which 
may be tributaries of this system. 
XXI. Freeport System. 
An interrupted series of ridges extending from the south-east cor- 
ner of Durham to the village of Freeport and perhaps farther south. 
On the north this system begins near the south brow of a pretty high 
range of granite and the kame is a broad ridge of sub-angular frag- 
ments of granite and is of morainal aspect. Near Freeport the gravel 
is entirely covered by the Champlain clays. Length about five miles. 
XXI x or XXII x. Androscoggin River Kames. 
Occasional short kames are found near the Androscoggin River 
from Livermore Falls southwards. The system is quite distinct from 
near the north line of Auburn through Lewiston to within three miles 
of S. W. Bend, Durham, and perhaps farther. It is here either a 
very zigzag series of short ridges separated by gaps of from one 
fourth of a mile to one mile in length, or more probably consists of 
two or more lines of ridges, part lying on one side of the river and a 
part on the other. This is a difficult series to trace, as it has been 
greatly modified both by the river and the sea, and has often been 
wholly or in part covered by valley drift or by marine sands and 
clays. Length 10 or more miles. 
XXH. Canton — Auburn System. 
This series begins near Canton Point on the Androscoggin River 
and extends southwards through a low pass to Livermore Village and 
North Turner, then as a broad series of plains through Turner to 
near the north line of Auburn, and then interruptedly past Lake 
Auburn and Taylor Pond to near the Little Androscoggin River, and 
possibly at one time,it connected with XXIV in Poland. This great 
kame-stream drained an extensive area above Canton and a few 
ridges found in that direction in the Androscoggin valley may be a 
northern connection of the system. 
Length about 30 miles. 
XXUI. Buckfield — West Minot System. 
Extends along a low pass from Buckfield southward through West 
Minot to the Little Androscoggin River about one and a half miles 
east of Mechanic Falls, and spreads into a plain which reaches south- 
easterly to near Lewiston Junction on the Grand Trunk Railway. 
These gravels have been greatly modified by the sea. North of 
Buckfield, kame gravels extend for three or more miles in the valley 
of the east branch of 20 Mile River, and are found at intervals along 
