REMEDIES.--These insects may be attacked in the egg or in the larval state. The former are so arranged as to be conspicuous on the naked spray at any time during the winter--whenever seen, they should be broken or cut off, and carried to the fire. In the early spring, we must watch for the little tents in the bifurcations of the limbs, and remove the nests with all the worms; this may be done when they are small, by using the thumb and finger; if larger, it is a disagreeable task, but no orchardist should hesitate when he recollects that six hundred leaves is a day's ration for one colony. They can easily be gathered in their web, thrown upon the ground, and crushed with the foot. Mr. Needham, of Massachusetts, has invented, what he calls, a caterpillar scourge; it is a little cone of wood, clothed with a piece of wool-card. This is attached to a pole: when thrust into the web, the whole nest is gathered by the card-teeth and brought down. An old dry mullein stalk has often been used for the same purpose, and some recommend burning the nest, or shooting it; but I have more faith in thumb and finger work, believing it to be more thorough. Among the natural enemies of these caterpillars are the Tiger-beetles, which a successful orchardist of Illinois uses systematically for their destruction. He catches a beetle, and puts it upon a tree containing a nest of the Tent-caterpillar, after which he finds the worms soon disappear. =Gastrophaca Americana=, (_Harris_).--The Lappet-caterpillars are found on apple trees. The worms are flat, and when at rest on a limb, they often escape observation from their gray color resembling the bark. A fringe of hairs, along their sides, gives them this flat appearance. They feed only at night. Dr. Harris found some in September that measured two and one-half inches in length, and above half an inch in breadth. SATURNIANS, CERATOCAMPIANS, ZEUZERIANS. =Platysamia (Attacus) cecropia=, (_Linn._), the Cecropia Emperor Moth, is found as a large cylindrical, pale green worm, three or four inches long, and as thick as one's thumb, and having two rows of pale blue, projecting points along each side, and two rows of pale yellow ones upon the back, with four larger, bright orange, or red ones anteriorly, all ending in little black prickles. The moth is large; its wings dark gray; each has a large white, crescent like spot in the centre, margined with red, and a red band crossing both wings. Appears in June; width five to seven inches. There are others of this family of noble moths whose names have been indicated above, but they are not very destructive to the orchard. Then come, in Dr. Harris' classification, the _Zeuzerians_, a group of moths which, like _Ægerians_ among the Sphinges, pierce the roots and stems of trees. Among these is _Xyleutes (Cossus) robiniæ_, or the Locust-tree Boring-moth.