No underwood or plants and little grass grows under them; these, therefore, which make soil quickest, are prevented from improving the earth. The needles of firs lie for months without decay; they are, too, very slender, and there are few branches to fall. Beneath any other trees (such as the edible chestnut and birch, which seem to grow here), there are the autumn leaves to decay, the twigs and branches which fall off, while grasses and plants flourish, and brambles and underwood grow freely. The earth remains moist, and all these soon cause an increase of the fertility; so that, unless fir-tree timber is very valuable, and I never heard that it was, I would rather plant a waste with any other tree or brushwood, provided, of course, it would grow. It is a pleasure to explore this little dell by the side of the rising ground, creeping under green boughs which brush the shoulders, after the empty space of the firs. Within there is a pond, where lank horsetails grow thickly, rising from the water. Returning to the rising ground I pursue the path, still under the shadow of the firs. There is no end to them--the vast monotony has no visible limit. The brake fern--it is early in July--has not yet reached its full height, but what that will be is shown by these thick stems which rise smooth and straight, fully three feet to the first frond. A woodpecker calls, and the gleam of his green and gold is visible for a moment as he hastens away--the first bird, except the wood-pigeons, seen for an hour, yet there are miles of firs around. After a time the ground rises again, the tall firs cease, but are succeeded by younger firs. These are more pleasant because they do not exclude the sky. The sunshine lights the path, and the summer blue extends above. The fern, too, ceases, and the white sand is now concealed by heath, with here and there a dash of colour. Furze chats call, and flit to and fro; the hum of bees is heard once more--there was not one under the vacant shadow; and swallows pass overhead. At last emerging from the firs the open slope is covered with heath only, but heath growing so thickly that even the narrow footpaths are hidden by the overhanging bushes of it. Some small bushes of furze here and there are dead and dry, but every prickly point appears perfect; when struck with the walking-stick the bush crumbles to pieces. Beneath and amid the heath what seems a species of lichen grows so profusely as to give a grey undertone. In places it supplants the heath, the ground is concealed by lichen only, which crunches under the foot like hoar-frost. Each piece is branched not unlike a stag's antlers; gather a handful and it crumbles to pieces in the fingers, dry and brittle.