R. Bakewell on the Fails of Niagara. 89 
The dotted lines from a@ to } ma 
represent the position of the Falls , 
when at right angles with the Ameri- ‘ 
can Falls (e) agreeably to the supposi- 
tion of M. Desor. But, as I have before 
said, unless it can be shown that the 
American Falls did exist when the Can- 
ada Falls were at a6, and continued 
afterwards to exist, all the calculation 
based upon the slight indentation 
backwards in the outline of the Amer- 
ican Falls amounts to nothing. 
The following facts show that the 
robabilities are, that the American 
all is comparatively a recent a i 
to incline more to the west, or become _ ¢, the cave. 
deeper it would soon draw off the .4 aleypict pack ieiwees the 
waters of the American Fall, and we “7° ine Sao 
should then have in its gece a lat- f Goat Island. — 
€ 
place when the flood poured over 
the precipice at c, at a distance of 
about half a mile from the American Fall. Here, for more than 
100 yards, the rock is quite bare, has a water-worn appearance, 
and presents a very remarkable outline on the edge of the preci- 
pice, reminding me the moment I saw it of the ragged outline of 
the rocks at the brow of the American Fall. It is interesting to 
compare one with the other. The resemblance is so similar in 
form as well as depth of indentation, that we might reasonably 
infer that the time spent on both in wearing and breaking down 
the edge of the precipice was nearly the same. 
Fig. 3 is an outline sketch of the cave about halfa mile from the 
American Fall, taken im 1846. (See fig. 2, c.) At the farther 
extremity of the cave was a small stream of water flowing down 
the precipice—the remains perhaps of the magnificent flood 
which once awoke the echoes of the place. In 1856 this had 
disappeared. The pure cold spring which gushed from the rock 
SECOND SERIES, VOL. XXIII, NO. 67.—JAN., 1857. 
12 
