climate, in case of necessity, or perhaps even as an article of luxury, might be found the same. "The caterpillars of certain beetles, from his account, are the greatest delicacies of the hot regions. They might, in some degree, be found to be so here. The palm-worm of the West Indies, which is sought at a monstrous expense, is the caterpillar or maggot of a beetle, of the same genus with that small beetle, which is produced from the maggot or caterpillar in a hazel-nut or filberd. This is often eaten here, and esteemed by those who do so as more delicate than the nut itself. "The Cantharides is a _green_ beetle. A green beetle of our own, _Cerambyx Moschatus_, is found capable of raising blisters; and other _green_ beetles may probably have the same effect. "The butterflies that are found in the cultivated spots of Africa, have in shape and appearance a strong resemblance to many of ours, particularly the white ones. These seldom visit the thick woods; but, when seen in any number, are certain indications of neighbouring plantations. This observation might save the lives of bewildered travellers: as in some instances it might be dangerous to enter into a very large wood, or a thick part of it; in others again, immediate safety might be the consequence of leaving a forest, by following the indications of an open or cultivated spot. The analogy between the colours, the dispositions, and the qualities of insects, may yet be greater, and between insects, and the plants on which they feed, still more useful; for if an insect is found in one part of the world to feed on a plant useful in food, medicine, or manufactures, an insect of a similar appearance, in another part of the world, will in all probability be found to feed on a plant of similar virtues. We do not know but insects may affect, when perfect, to frequent different soils; or to visit the recesses, where valuable drugs remain hid from human search, and useless to mankind.