324 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
covered, occurs east of Washington St. in the city of Barre. Pebbly 
ridges crossing this flat near Main St., I have considered to be beach 
lines.* 
The Winooski valley westward from the Green Mountains has an 
upper terrace level at 565 feet above the sea. This is best represented 
northwest of the village of Richmond. It is found also on the south 
side of the valley extending east of Richmond about 3 miles to the 
mouth of the Huntington River, which comes into the Winooski River 
from the south. This set of terraces corresponds to the Coveville 
stage Lake Vermont. 
West of Richmond there is a terrace level along the 500-foot contour 
aggregating several square miles in area. This has already been re- 
ferred to as one of the upper levels of the Winooski delta in Lake 
Vermont. All the terraces in the vicinity of Richmond below an 
altitude of 500 feet must be stream terraces, unless there was a rise 
in the level of Lake Vermont after the river had trenched its delta 
and developed flood-plains accordant with the lake-level. 
Two and one-half miles south of Richmond, near Owl’s Head hill, 
banded clays occur in roadside cuts at an altitude of 645 feet., East 
of the hill a deeply dissected sand-plain attains the observed elevation 
of 650 feet. Outwash from the ice is the only probable source of the 
materials in these deposits. This sand-plain must have been built 
into a lake tributary to Lake Vermont during a part of the Upper 
Coveville stage of Lake Vermont. The presence of the ice as far 
south as this locality at this time, supports Woodworth’s belief that at 
the time of the Upper Coveville stage the ice impinged against the 
mountain side as far south as Port Kent, New York. 
Tar LAmoıLLe Basin.— The Main Valley. I traversed the Lamoille 
valley from Milton near its mouth, eastward to Greensborobend near 
its source. 
The most elevated sections which gave evidence of origin in standing 
water are well up the river, in the village of Hardwick. Near the 
railroad station at this place at an altitude of 895 feet, cross-bedded 
sands enclose numerous clods of stony till. East of the village at an 
elevation of 1055 feet a large body of gravel, apparently of proglacial- 
delta type, forms a flat surface half a mile wide. The level of the 
water in which this deposit was made was high enough to have ex- 
tended northward into as much of the Lake Memphremagog valley 
as may have been free from ice at that time. Certain high-level 
1 Contorted clays under this terrace, I have taken as an evidence of reädvance of the 
ice. 
i II ts 
