infected branch be cut in the winter, and kept in water in a warm room, these aphides will awaken speedily, spin their cottony vests, and feed, and discharge, as accustomed to do in a genial season. It is often very difficult to ascertain the first appearance of many creatures not natives of our climate, though, from the progress of science, and more general observation, many things will be recorded. The first visit of the death’s-head moth is very obscure; an extraordinary snail (testacellus halotideus)[68] is now spreading by transplantation in many places, and may hereafter occasion inquiry. The first visit of this aphis to us is by no means clear. The epithet of American blight may be correctly applied; but we have no sufficient authority to conclude, that we derived this pest from that country. Normandy and the Netherlands, too, have each been supposed to have conferred this evil upon us; but extensively as this insect is spread around, and favorable as our climate appears to be to its increase, it bids fair to destroy in progression most of our oldest and long-esteemed fruit from our orchards. The same unknown decree, which regulates the increase and decrease of all created beings, influences this insect; yet wet seasons, upon the whole, seem ungenial to its constitution. In the hot dry summer of 1825, it was abundant everywhere; in the spring of 1826, which was unusually fine and dry, it abounded in such incredible luxuriance, that many trees seemed at a short distance as if they had been whitewashed; in the ensuing summer, which was a very dry and hot one, this cottony matter so entirely disappeared, that to superficial observation the malady was not in existence; and it did not become manifest again until September, when, after the rains of that season, it reissued in fine, cottony patches from the old nodes on the trees. Many remedies have been proposed for removing this evil, efficacious perhaps in some cases upon a small scale; but when the injury has existed for some time, and extended its influence over the parts of a large tree, I apprehend it will take its course, and the tree die. Upon young plants, and in places where a brush can be applied, any substance that can be used in a liquid state, to harden into a coat, insoluble by rain, will assuredly confine the ravages of the creature, and smother it. Hard rubbing with a dry brush crushes many, but there are crevices into which the bristle cannot enter: thus some escape, and the propagation continues. I have very successfully removed this blight from young trees, and from recently attacked places in those more advanced, by an easy application. Melt about three ounces of resin in an earthen pipkin, take it from the fire, and pour into it three ounces of fish oil; the ingredients perfectly unite, and, when cold, acquire the consistence of honey. A slight degree of heat will liquefy it, and in this state paint over every node or