To return to the Dee.--The river divides again, one stream coming tumbling down through the cleft between Cairn Toul and Brae Riach, called the Garchary Burn. The other, less precipitously inclined, comes from between Brae Riach and Ben Mulch Dhul, and is called the Larig. Like the Nile and the Niger, the Dee is a river of a disputed source. As we shall presently find, the right of the Garchary to that distinction is strongly maintained by pretty high authority; but we are ourselves inclined to adopt the Larig, not only because it appeared to us to contain a greater volume of water, but because it is more in the line of the glen, and, though rough enough, is not so desperately flighty as the Garchary, and does not join it in those great leaps which, however surprising and worthy of admiration they may be in themselves, are not quite consistent with the calm dignity of a river destined to pass close to two universities. Following then the Larig over rocks and rough stones, among which it chafes and foams, we reach a sort of barrier of stones laid together by the hand of nature with the regularity of an artificial breakwater. As we pass over this barrier, a hollow rumbling is heard beneath; for the stream, at least at ordinary times, finds its way in many rills deep down among the stones. When we reach the top of the bank we are on the edge of a circular basin, abrupt and deep, but full of water so exquisitely clear that the pebbly bottom is every where visible. Here the various springs, passing by their own peculiar conduit-pipes from the centre of the mountain, meet together, and east up their waters into the round basin--one can see the surface disturbed by the force of their gushing. Soon after passing these "wells of Dee," we are at the head of the pass of Cairngorm, and join the waters which run to the Spey. A path leads through the woods of Rothiemurchus to Aviemore, on which the nearest house is, or used to be, that of a widow named Mackenzie, who in that wide solitude extends her hospitality to the wayfarer. Blessings on her! may her stoup never be dry, or her aumry empty. It is needless to tell the traveller, that by this route he may approach the scenery of the Cairngorm hills from Laggan, Rannoch, and other places near Spey side. The claims of the Garchary to the leadership are supported by that respectable topographer Dr Skene Keith--probably on account of his own adventurous ascent of that turbulent stream, which we shall give in his own words, merely premising that we suspect he was mistaken in his discovery that the well he saw is called "Well Dee."