We shall next take a view of some of the most remarkable lakes; and the first we would notice, is the Lake of Killarney.-This is a beautiful lake of Ireland, in the county of Kerry, otherwise called Lough Lean, from its being surrounded by high mountains. It is divided into three parts, called the Lower, Middle, and Upper Lake. The northern, or lower lake, is six miles in length, and from three to four in breadth. On the side of one of the mountains is O'Sullivan's Cascade, which falls into the lake with a roar that strikes the timid with awe. The view of this sheet of water is uncommonly fine; it appears as if it were descending from an arch of wood, which overhangs it above seventy feet in height. The promontory of Mucruss, which divides the upper from the lower lake, is quite enchanting; and a road is carried through the centre of its promontory, which unfolds all the interior beauties of the place. Among the distant mountains, Turk appears an object of magnificence; while Mangerton's more lofty, though less interesting summit, soars above the whole. The passage to the upper lake is round the extremity of Mucruss, which confines it on one side, and the approaching mountains on the other. Here is a celebrated rock, called the Eagle's Nest, which produces wonderful echoes; the report of a single cannon is answered by a succession of peals resembling the loudest thunder, and at length dies away among the distant mountains. The upper is four miles long, and from two to three broad. It is almost surrounded by mountains, from which descend a number of beautiful cascades. The islands in this lake are numerous, and afford an amazing variety of picturesque views. The centre lake, which communicates with the upper, is small in comparison with the other two, and cannot boast of equal variety; but the shores are, in many places, indented with beautiful bays, surrounded by dark groves of trees. The east boundary is formed by the base of Mangerton, down the steep side of which descends a cascade, visible for 150 yards. This fall of water is supplied by a circular lake, near the summit of the mountain, called the Devil's Punch Bowl; which, on account of its immense depth, and the continual overflow of water, is considered as one of the greatest curiosities in Killarney. One of the most delightful prospects which this universally admired lake affords, is from a rising ground near the ruined cathedral of Aghadoe.