G. F. Wright—Niagara River and the Glacial Period. 33 
A walk from the angle in the escarpment just below the 
whirlpool to the letter H in the word “Channel” discloses the 
following succession of phenomena: Ist. For a few rods the 
bare limestone rock; 2d. After a sudden rise of a few aa 
we pass’ for about a hundred yards over deposits of sand an 
gravel which were doubtless made in the old bed of the river 
when the falls were below the whirlpool; 8d. We reach the 
-old bank of the river, which consists of till, and rises fifteen or 
twenty feet. Till, bearing numerous granitic bowlders, contin- 
ues for two or three miles of an unknown depth. At the letter 
Hf the sand deposits, before described, begin. The small stream 
AW Sat ay tts OL ATM Mya 
‘ al 
hate AAG 
4 
q flowing through the preglacial channel into the whirlpool no- 
___ where uncovers the rock; hence it may be inferred that there is 
_ ® buried channel from the whirlpool to St. David’s. Still, there 
_ 18 no direct proof of this, as, for a space of two miles, the surf 
; of the country is unbroken and the till from twenty to thirty © 
feet deep. The well to which Sir Charles Lyell indefinitelyrefers _ 
e Travels in America [First Visit] vol. ii, p. 79) was probably __ 
Somewhere in the broad opening on the St. David's side, from 
which little could be inferred. This buried channel where it 
Am. Jour. Sor.—Tarep Suni, Vou. XXVIII, No, 163.—Juxy, 1884. ae 
