At a recent meeting of the Summit County (Ohio) Horticultural Society, Mr. M. C. Read, of Hudson, noted that "the history of the Clytus, a beautiful beetle, whose larvae bores the body and limbs of the white locust, illustrates the law of change. Some thirty-five or forty years ago the white locust, because of its rapid growth and beautiful appearance when young, was extensively planted as an ornamental tree. For many years it seemed to be without an insect enemy; but after a time this elegantly marked insect was occasionally observed upon and in the neighborhood of these trees. Its members steadily increased, until the bodies of most of the locust trees were honeycombed with the galleries formed by the larvae, and the sickly appearance of the trees foreboded their destruction. In later years, apparently without cause, the number of these beetles has been so reduced that a collector, in many places where they were abundant, can obtain but a few specimens in a season. I do not know what particular insects are to receive credit for this work, but it is certain that its natural enemies have, by virtue of the law already stated, checked its abnormal increase, and established a substantially harmless equilibrium."