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182 "There is no doubt about it. The great Canadian Fall recedes insensibly, but still, it recedes. The tower, when it was first built in 1833, was much farther from the cataract. Geologists say that the fall, in the space of thirty-five thousand years, will be found at Queenstown, seven miles up the stream. According to Mr. Bakewell, it recedes a yard in a year; but according to Sir Charles Lyell one foot only. The time will come when the rock which supports the tower, worn away by the water, will glide down the Falls of the cataract. Well, my dear sir, remember this: the day when the Terrapin Tower falls, there will be some eccentrics who will descend the Niagara with it."

I looked at the Doctor, as if to ask him if he would be of that number, but he signed for me to follow him, and we went out again to look at the "Horse-shoe Fall," and the surrounding country. We could now distinguish the American Fall, slightly curtailed and separated by a projection of the island, where there is another small central cataract one hundred feet wide; the American cascade, equally fine, falls perpendicularly. Its height is one hundred and sixty-four feet. But in order to have a good view of it it is necessary to stand facing it, on the Canadian side.

All day we wandered on the banks of the Niagara, irresistibly drawn back to the tower, where the roar of the water, the spray, the sunlight playing on the vapours, the excitement, and the briny odour of the cataract, holds you