The river Niagara takes its rise in the western extremity of Lake Erie, and, after flowing about thirty-four miles, empties itself into Lake Ontario. It is from half a mile to three miles broad; its course is very smooth, and its depth considerable. The sides above the cataract are nearly level; but below the falls, the stream rushes between very lofty rocks, crowned by gigantic trees. The great body of water does not fall in one complete sheet, but is separated by islands, and forms three distinct falls. One of these, called the Great Fall, or, from its shape, the Horse-shoe Fall, is on the Canadian side. Its beauty is considered to surpass that of the others, although its height is considerably less. It is said to have a fall of 165 feet; and in the inn, which is about 300 yards from the fall, the concussion of air caused by this immense cataract is so great, that the window-frames, and, indeed, the whole house, are continually in a tremulous motion, and in winter, when the wind drives the spray in the direction of the buildings, the whole scene is coated with sheets of ice. [Illustration: THE FALLS OF NIAGARA.] The great cataract is seen by few travellers in its winter garb. I had seen it several years before in all the glories of autumn, its encircling woods, happily spared by the remorseless hatchet, and tinted with the brilliant hues peculiar to the American "Fall." Now the glory had departed; the woods were still there, but were generally black, with occasional green pines; beneath the grey trunks was spread a thick mantle of snow, and from the brown rocks inclosing the deep channel of the Niagara River hung huge clusters of icicles, twenty feet in length, like silver pipes of giant organs. The tumultuous rapids appeared to descend more regularly than formerly over the steps which distinctly extended across the wide river. The portions of the British, or Horse-shoe Fall, where the waters descend in masses of snowy whiteness, were unchanged by the season, except that vast sheets of ice and icicles hung on their margin; but where the deep waves of sea-green water roll majestically over the steep, large pieces of descending ice were frequently descried on its surface. No rainbows were now observed on the great vapour-cloud which shrouds for ever the bottom of the Fall; but we were extremely fortunate to see now plainly what I had looked for in vain at my last visit, the _water-rockets_, first described by Captain Hall, which shot up with a train of vapour singly, and in flights of a dozen, from the abyss near Table Rock, curved towards the east, and burst and fell in front of the cataract. Vast masses of descending fluid produce this singular effect, by means of condensed air acting on portions of the vapour into which the water is comminuted below. Altogether the appearance was most startling. It was observed at 1 P.M. from the gallery of Mr. Barnett's museum. The broad sheet of the