boxes, where they soon swathe themselves out of sight in white floss. A few only of the best are suffered to emerge from their silky sleep,—the selected breeders. They have beautiful wings, but cannot use them. They have mouths, but do not eat. They only pair, lay eggs, and die. For thousands of years their race has been so well-cared for, that it can no longer take any care of itself.
It was the evolutional lesson of this latter fact that chiefly occupied me while Niimi and his younger brother (who feeds the worms) were kindly explaining the methods of the industry. They told me curious things about different breeds, and also about a wild variety of silkworm that cannot be domesticated:—it spins splendid silk before turning into a vigorous moth which can use its wings to some purpose. But I fear that I did not act like a person who felt interested in the subject; for, even while I tried to listen, I began to muse.
