282 The American Geologist. NovemiH>r, 1893 
north down the inside of the moraine into Quivet creek. 
Steep pond must once have drained into Long pond. 
On the Barnstable sheet: Peter's pond has a dry channel 
one-half mile long, entering Wakely pond, which is in turn 
drained by the Mashpee river. The Hog ponds seem also to 
have drained into the Mashpee. Long pond, near Newtown, is 
another example with an overflow channel now dry. Shubael 
pond has a Hume passing out on the east side and then turn- 
ing south toward the sea. The southern of the three Cotuit 
ponds has a good drainage crease on the east also leading 
south to the ocean. 
In other instances on the Barnstable sheet, the ponds at 
present overflow and the flumes are occupied by small streams, 
generally too small for the valleys. Great. Mashpee, Santuit. 
and Lovell's ponds belong to this class. These lakelets are 
from three-eighths of a mile to a mile in width and of cor- 
responding lengths, figures which give an idea of the horizon- 
tal dimensions of the ice-blocks to which the ponds owe their 
origin. Of the hight of the masses, we can best judge by 
the cross-section of the old drainage lines, since these depend 
upon the volume of water supplied by melting above the level 
of the surrounding plain. This judgment should be correct- 
ed by an allowance for the thickness of ice between the level 
of the plain and the bed of the furrow, but in general this 
may be neglected. 
On the Falmouth sheet. Ashumet pond has a broad valley 
leading to Green pond, a drowned glacial waterway. Jenk- 
ins' pond and its minor neighbors are connected by dry fur- 
rows. ( 'oonemossett pond, drained now on the west into Great 
pond (creek), has an old furrow on the east leading into 
Green pond (creek). Long pond has an old furrow, occupied 
by lakelets, leading into the sea. John pond is unique in 
having at present two outlets, one on the north into the 
Quostinet river, the other on the south into Child's river, 
both through furrows. It seems likely that other ponds in 
the glacial district, having two outlets, may have, in the clos- 
ing stage of the ice period, been held open by ice-hills, the 
the drainage of opposite sides of which gave rise to more 
than one furrow, through which the present pond waters 
escape. 
