Animalization in general is, we know, contra-distinguished from vegetables in general by the predominance of azote in the chemical composition, and of irritability in the organic process. But in this and the foregoing classes, as being still near the common equator, or the punctum indifferentiæ, the carbonic principle still asserts its claims, and the force of reproduction struggles with that of irritability. In the unreconciled strife of these two forces consists the character of the Vermes, which appear to be the preparatory step for the next class. Hence the difficulties which have embarrassed the naturalists, who adopt the Linnæan classification, in their endeavours to discover determinate characters of distinction between the vermes and the insecta.
But no sooner have we passed the borders, than endless variety of form and the bold display of instincts announce, that Nature has succeeded. She has created the intermediate link between the vegetable world, as the product of the reproductive or magnetic power, and the animal as the exponent of sensibility. Those that live and are nourished, on the bodies of other animals, are comparatively few, with little diversity of shape, and almost all of the same natural family. These we may pass by as exceptions. But the insect world, taken at large, appears as an intenser life, that has struggled itself loose and become emancipated from vegetation, Floræ liberti, et libertini! If for the sake of a moment's relaxation we might indulge a Darwinian flight, though at the risk of provoking a smile, (not, I hope, a frown) from sober judgment, we might imagine the life of insects an apotheosis of the petals, stamina, and nectaries, round which
