july 3d.—last night seemed to close in clear, and even at midnight it was still light enough to read; but this morning rose on us misty and chill, with spattering showers of rain. clouds momentarily settled and shifted on the hill-tops, shutting us in even more completely than these steep and rugged green walls would be sure to do, even in the clearest weather. often these clouds came down and enveloped us in a drizzle, or rather a shower, of such minute drops that they had not weight enough to fall. this, i suppose, was a genuine scotch mist; and as such it is well enough to have experienced it, though i would willingly never see it again. such being the state of the weather, my wife did not go out at all, but i strolled about the premises, in the intervals of rain-drops, gazing up at the hillsides, and recognizing that there is a vast variety of shape, of light and shadow, and incidental circumstance, even in what looks so monotonous at first as the green slope of a hill. the little rills that come down from the summits were rather more distinguishable than yesterday, having been refreshed by the night's rain; but still they were very much out of proportion with the wide pathways of bare rock adown which they ran. these little rivulets, no doubt, often lead through the wildest scenery that is to be found in the highlands, or anywhere else, and to the formation and wildness of which they have greatly contributed by sawing away for countless ages, and thus deepening the ravines.

i suspect the american clouds are more picturesque than those of great britain, whatever our mountains may be; at least, i remember the berkshire hills looking grander, under the influence of mist and cloud, than the highlands did to-day. our clouds seem to be denser and heavier, and more decided, and form greater contrasts of light and shade. i have remarked in england that the cloudy firmament, even on a day of settled rain, always appears thinner than those i had been accustomed to at home, so as to deceive me with constant expectations of better weather. it has been the same to-day.

whenever i looked upward, i thought it might be going to clear up; but, instead of that, it began to rain more in earnest after midday, and at half past two we left inverannan in a smart shower. at the head of the lake, we took the steamer, with the rain pouring more heavily than ever, and landed at inversnaid under the same dismal auspices. we left a very good hotel behind us, and have come to another that seems also good. we are more picturesquely situated at this spot than at inverannan, our hotel being within a short distance of the lake shore, with a glen just across the water, which will doubtless be worth looking at when the mist permits us to see it. a good many tourists were standing about the door when we arrived, and looked at us with the curiosity of idle and weather-bound people. the lake is here narrow, but a hundred fathoms deep; so that a great part of the height of the mountains which beset it round is hidden beneath its surface.

july 4th.—this morning opened still misty, but with a more hopeful promise than yesterday, and when i went out, after breakfast, there were gleams of sunshine here and there on the hillsides, falling, one did not exactly see how, through the volumes of cloud. close beside the hotel of inversnaid is the waterfall; all night, my room being on that side of the house, i had heard its voice, and now i ascended beside it to a point where it is crossed by a wooden bridge. there is thence a view, upward and downward, of the most striking descents of the river, as i believe they call it, though it is but a mountain-stream, which tumbles down an irregular and broken staircase in its headlong haste to reach the lake. it is very picturesque, however, with its ribbons of white foam over the precipitous steps, and its deep black pools, overhung by black rocks, which reverberate the rumble of the falling water. j——- and i ascended a little distance along the cascade, and then turned aside; he going up the hill, and i taking a path along its side which gave me a view across the lake. i rather think this particular stretch of loch lomond, in front of inversnaid, is the most beautiful lake and mountain view that i have ever seen. it is so shut in that you can see nothing beyond, nor would suspect anything more to exist than this watery vale among the hills; except that, directly opposite, there is the beautiful glen of invernglass, which winds away among the feet of ben crook, ben ein, ben vain, and ben voirlich, standing mist-inwreathed together. the mists, this morning, had a very soft and beautiful effect, and made the mountains tenderer than i have hitherto felt them to be; and they lingered about their heads like morning-dreams, flitting and retiring, and letting the sunshine in, and snatching it away again. my wife came up, and we enjoyed it together, till the steamer came smoking its pipe along the loch, stopped to land some passengers, and steamed away again. while we stood there, a highlander passed by us, with a very dark tartan, and bare shanks, most enormously calved. i presume he wears the dress for the sole purpose of displaying those stalwart legs; for he proves to be no genuine gael, but a manufacturer, who has a shooting-box, or a share in one, on the hill above the hotel.

we now engaged a boat, and were rowed to rob roy's cave, which is perhaps half a mile distant up the lake. the shores look much more striking from a rowboat, creeping along near the margin, than from a steamer in the middle of the loch; and the ridge, beneath which rob's cave lies, is precipitous with gray rocks, and clothed, too, with thick foliage. over the cave itself there is a huge ledge of rock, from which immense fragments have tumbled down, ages and ages ago, and fallen together in such a way as to leave a large irregular crevice in rob roy's cave. we scrambled up to its mouth by some natural stairs, and scrambled down into its depths by the aid of a ladder. i suppose i have already described this hole in the record of my former visit. certainly, rob roy, and robert bruce, who is said to have inhabited it before him, were not to be envied their accommodations; yet these were not so very intolerable when compared with a highland cabin, or with cottages such as burns lived in.

j——- had chosen to remain to fish. on our return from the cave, we found that he had caught nothing; but just as we stepped into the boat, a fish drew his float far under water, and j——— tugging at one end of the line, and the fish at the other, the latter escaped, with the hook in his month. j——— avers that he saw the fish, and gives its measurement as about eighteen inches; but the fishes that escape us are always of tremendous size. the boatman thought, however, that it might have been a pike.