We have no intention of entering on anything like a minute or photographic description of Glen Nevis, for which, indeed, half-a-dozen Nether Lochaber columns would hardly suffice; we can only hurriedly glance at what most instantly and indelibly struck us in the day's excursion. First of all, we were all struck by the exceeding pellucidity and crystal clearness of the waters of the Nevis. Nowhere else did we ever see a mountain stream so beautifully transparent. Standing on the brink of any selected pool, many feet in depth, you distinguished the smallest pea-sized pebble, its veins, scratches, and striations, as distinctly as if you had it on the palm of your hand, under a lens, and within less than a foot focus of your eyeball! And all this remarkable pellucidity, observe, not in one particular pool, or in any one particular stretch of the river, but throughout all its beautiful windings. Another remarkable feature of the glen is the manner in which its natural birch woods grow. They occupy a pretty broad belt almost half-way up the mountains, leaving a still broader belt between themselves and the river banks comparatively bare and treeless. In all the other Highland glens with which we have any acquaintance, whatever of wood there is always begins, as seems most natural, at the river banks, where it is thickest and most luxuriant, growing away and upwards on either side to a greater or less altitude, according to the nature of the soil and the shelter to be had from the prevailing winds. And speaking of winds, this is the place to observe that of all our glens Glen Nevis is perhaps the stormiest, the wind in a gale not blowing steadily, but in fitful gusts and whirlwind-wise, striking in from the corries right and left, and meeting in the centre with a force and fury unimaginable by non-residenters. How do you know, the reader may ask, for it was calm and quiet enough during your visit on Friday? True, and yet we failed not to notice a very striking proof of the storminess at times of Glen Nevis notwithstanding. As you pass the forester's house at Auchreoch, lift up your eyes, and please observe how carefully, how thoroughly, closely, compactly, and painstakingly it is thatched; and observe further and over all a network of wire as thick and strong as that used in our overland telegraphy, and to the end of each wire as it almost reaches the ground in front and at the back of the house, please notice suspended a large stone, water-worn boulders from the river below, each of a hundredweight or more, and you will not fail, we think, to understand how we so confidently decided that Glen Nevis at times must be an exceedingly stormy place. If you assert that other Highland glens may be quite as stormy in the season of storms, we shall not contradict you; what we do say is this, that never did a house-roof speak to us so eloquently of furious and frequent storm and whirlwind as did the roof of that house at Auchreoch, and a very good house it is, and a very pretty place to the bargain. A little beyond Auchreoch, and to the left of the path, there is a bit of wild and rugged rock scenery well worth attention. Here and there, over the face of what seems the hard impenetrable rock, many trees grow and flourish as if through the very heart of the granite. The explanation of course is, that the rock which seems so homogeneous and solid at a distance is in reality fissured and fractured in all directions, and that in these fissures the trees find soil and food enough to sustain a wonderfully luxuriant growth and opulence of foliage for such a situation. About a mile further up the glen, we separated from our companions for a while, we having determined to cross the Nevis at this point in order to visit Uaimh Shomhairle, or Samuel's Cave, the entrance to which was pointed out to us by Mr. Macpherson in the face of the opposite steep. To get across the river we had to strip until in a state of almost puris naturalibus, and even then it was somewhat dangerous, a single false step might have been attended by very serious consequences. With a little circumspection and care, however, we got safely over, and half-dressed and barefooted we climbed the rock like a chamois, and in less than ten minutes we were standing at the mouth of the celebrated cave. Samuel's Cave is in fact two caves, the outer and smaller one, with a broad portal that admits abundant light and air, forming a sort of vestibule or antechamber to the inner cave. Provided with one or two old newspapers and some wax vestas, we improvised a couple of rude torches which we carried with us as we crept through a narrow opening by which alone access is obtained into the inner antrum.