Of the various kinds of words, the compound are best adapted to Dithyrambs, rare words to heroic poetry, metaphors to iambic.

Hence probably it is, that we feel so little surprise at one, of two species closely allied in habits, being rare and the other abundant in the same district; or, again, that one should be abundant in one district, and another, filling the same place in the economy of nature, should be abundant in a neighbouring district, differing very little in its conditions.

It does seem to me, that herein we see the rare virtue of a strong individual vitality, and the rare virtue of thick walls, and the rare virtue of interior spaciousness.