hide on its neck torn; but when it was stretched out the dogs ripped open its belly. Dogs do not get their teeth through the skin of an old cougar; but they will tear up either a bobcat or coyote. In 1894 and 1896 I saw a number of wolves on the Little Missouri, although I was not looking for them. I frequently came upon the remains of sheep and young stock which they had killed; and once, upon the top of a small plateau, I found the body of a large steer, while the torn and trodden ground showed that he had fought hard for his life before succumbing. There had been two wolves engaged in the work, and the cunning beasts had evidently acted in concert. Apparently, while one attracted the steer’s attention in front, the other, according to the invariable wolf habit, attacked him from behind, hamstringing him and tearing out his flanks. His body was still warm when I came up, but the marauders had slunk off, either seeing or smelling me. There was no mistaking the criminals, however, for, unlike bears, which usually attack an animal at the withers, or cougars, which attack the throat or head, wolves almost invariably attack their victim at the hind quarters and begin first on the hams or flanks, if the animal is of any size. Owing to their often acting in couples or in packs, the big wolves do more damage to horned stock than cougars, but they are not as dangerous to colts, and they are not nearly as expert as the big cats in catching deer and mountain sheep. When food is plentiful, good observers say that they will not try to molest foxes; but, if hungry, they certainly snap them up as quickly as they would fawns. Ordinarily they show complete tolerance of the coyotes; yet one bitter winter I knew of a coyote being killed and eaten by a wolf. Not only do the habits of wild beasts change under changing conditions as time goes on, but there seems to be some change even in their appearance. Thus the early observers of the game of the Little Missouri, those who wrote in the first half of the nineteenth century, spoke much of the white wolves which were then so common in the region. These white wolves represented in all probability only a color variety of the ordinary gray wolf; and it is difficult to say exactly why they disappeared. Yet when about the year 1890 wolves again grew common these white wolves were very, very rare; indeed I never personally heard of but one being seen. This was on the Upper Cannonball in 1892. A nearly black wolf was killed not far from this spot in the year 1893. At the present day black wolves are more common than white wolves, which are rare indeed. But all these big wolves are now decreasing in numbers, and in most places are decreasing rapidly.