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g Ontario's ramparts, &c.
Fort George, situated on the Canadian, and Fort Niagara on the American side of the river Niagara, at its entrance into Lake Ontario, distant about fourteen, as its outlet from Lake Erie is about twenty miles from the falls. At both these points their sound is often heard like distant thunder, particularly in calm weather, and in the stillness of the night.
h Tormented cave.
The cataract next to the Canadian shore is nearly in the shape of a horse-shoe, or of the pit of a modern theatre; and if the reader will suppose the water to pour over from the gallery and upper side boxes, one hundred and fifty feet perpendicular, he will have some idea of the shape, but none whatever either of the magnitude or of the noise of this stupendous fall, or of the unapproachable, vast cavern which ingulfs it. Its circuit is about 800 or 900, and its chord about 300 yards, from one point of the horse-shoe to the other.
i Its hoary cloud.
The clouds of spray, which are perpetually hovering over these cataracts, are often seen at Buffaloe on Lake Erie as far as their sound is heard. See Note g.
k Sweet Iris, &c.
Portions of rainbows are often seen at these falls, varying according to the position of the sun. The author saw many, and particularly observed a small segment of one about ten
