After being for a few miles such as we have tried to describe it, the glen becomes narrower, and the scenery rougher. Granite masses crop out here and there. The pretty dejected weeping birches become mixed with stern, stiff, surly pines, which look as if they could "do any thing but weep," and not unnaturally suggest the notion that their harsh conduct may be the cause of the tears of their gentler companions. At last a mountain thrusts a spur into the glen, and divides it into two: we are here at the foot of Cairngorm of Derrie, or the lesser Cairngorm. The valley opening to the left is Glen Lui Beg, or Glen Luithe Little--containing the shortest and best path to the top of Ben Muich Dhui. The other to the right is Glen Derrie--one of the passes towards Loch A'an or Avon, and the basin of the Spey. Both these glens are alike in character. The precipitous sides of the great mountains between which they run, frown over them and fill them with gloom. The two streams of which the united waters lead so peaceful a wedded life in calm Glen Lui, are thundering torrents, chafing among rocks, and now and then starting unexpectedly at our feet down into deep black pools, making cataracts which, in the regular touring districts, would be visited by thousands. But the marked feature of these glens is the ancient forest. Somewhere we believe in Glen Derrie there are the remains of a saw-mill, showing that an attempt had been at one time made to apply the forest to civilised purposes; but it was a vain attempt, and neither the Baltic timber duties, nor the demand for railway sleepers, has brought the axe to the root of the tree beneath the shadow of Ben Muich Dhui. There are noble trees in the neighbouring forest of Braemar, but it is not in a state of nature. The flat stump occurs here and there, showing that commerce has made her selection, and destroyed the ancient unity of the forest. In Glen Derrie, the tree lives to its destined old age, and whether falling from decay, or swept to the ground by the tempest, lies and rots, stopping perhaps the course of some small stream, and by solution in the intercepted waters forming a petty peat-bog, which, after a succession of generations, becomes hardened and encrusted with lichens. Near such a mass of vegetable corruption and reorganisation, lies the new-fallen tree with its twigs still full of sap. Around them stand the hoary fathers of the forest, whose fate will come next. They bear the scars and contortions of many a hard-fought battle with the storms that often sweep the narrow glen. Some are bent double, with their heads nearly touching the earth; and among other fantastic forms it is not unusual to see the trunk of some aged warrior twisted round and round, its outer surface resembling the strands of a rope. A due proportion of the forest is still in its manly prime--tall, stout, straight trees, lifting their huge branches on high, and bearing aloft