They are sometimes hunted on horseback with hounds, but they can run with such speed when frightened, that no ordinary dog can keep up with them. Among the pack are one or more greyhounds, who bring the wolf to bay and allow the other dogs to come up. [Illustration: From col. Mr. F. Kaempfer. BLACK WOLF. 1/9 Life-size. Copyright by Nature Study Pub. Co., 1898, Chicago.] THE BLACK WOLF. At one time the Black Wolf of America was considered by naturalists to be only a variety of the common Wolf, but it is now believed to be a distinct species, not only by reason of the color of its fur but from differences of stature, the position of the eye, the peculiar bushiness of the hair and other evidence entitling it to rank as a separate species. This variety is referred to as an inhabitant of Florida, and is described as partaking of the general lupine character, being fierce, dangerous, and at the same time cowardly and pusillanimous, when they find themselves fairly enclosed. If imprisoned in even a large space, they crouch timidly in the corners, and do not venture to attack man when he enters the cage. Audubon mentions a curious instance of this strange timidity in a ferocious nature, of which he was an eye-witness: "A farmer had suffered greatly from Wolves, and determined to take revenge by means of pitfalls, of which he had dug several within easy reach of his residence. They were eight feet in depth and wider at the bottom than at the top. Into one of these traps three fine Wolves had fallen, two of them black, and the other a brindled animal. To the very great astonishment of Mr. Audubon, the farmer got into the pit, pulled out the hind legs of the Wolves, as they lay trembling at the bottom, and with his knife severed the chief tendon of the hind limbs, so as to prevent their escape. The skins of the captured animals were sufficiently valuable to reimburse the farmer for his labor and his previous losses." The Esquimaux use traps made of large blocks of ice, constructed in the same manner as our ordinary mouse-trap with a drop-door. The trap is made so narrow that the Wolf cannot turn himself, and when he is closed in by the treacherous door, he is put to death by spears.