"Sign is a word which may mean a great many things. Sign may be the tracks of animals, or of people, or the smoke of fires, or an old camp, or clothing dropped by some one who has passed along. Anything that shows that animals or people have been in a certain place is called sign. Sign may be old or fresh, and there is always something about it that should tell you more than the mere fact that whatever made it has been there. You ought to be able to tell when the sign was made, and sometimes how it came to be made. Sometimes the sign is merely the way the wild animals act. I remember years ago, when the Sioux and Cheyennes were troublesome, I was travelling alone with Hugh, and one night when we camped, he rode out to kill a buffalo heifer. Before long he came back and told me that he had seen Indian sign, and that as soon as it was dark we must start and travel on all night. When I asked him what he had seen, he said that the animals were uneasy and the buffalo were running, and that some one was chasing them not far off. We hid our horses in a ravine and crept on top of a near-by hill from which we could see a good stretch of country. Sure enough, before long we saw buffalo running as if frightened, and a little later we saw, far off, two Indians chasing a little bunch. We lighted no fire that evening, but soon after dark rode away, and did not rest till we had put forty miles behind us." "Do you think they would have tried to kill you, if they had seen you?" asked Jack. "I don't know," said his uncle, "we were not taking any chances. "Now, when you get to the ranch," he went on, "you will learn a lot about the birds and animals, and if your tastes lie that way, and you keep your eyes open, you will find out much of the life of these wild things that few people know. Although I have been out there so many years and have always tried to observe things, I see every season something that I never saw before, and learn more and more how little I really know about the beasts and the birds of the west--even those that are most common about the ranch. Only last year I saw for the first time a little blind coyote puppy dug out from a hole in a ravine and was astonished to find that, instead of being yellow it was dark blue, almost black in fact. You could get a great collection of pets together at the ranch. Young elk, young antelope and deer and wolves, possibly a buffalo calf, some foxes, and birds of a dozen different kinds, grouse, ducks, magpies, young hawks. Why, you could have a regular menagerie." "Oh, what fun that would be," said Jack. "I should like that. But how do you catch all these things? I supposed that young deer and antelope could run so fast that they could not be caught. I thought that they ran even faster than the old ones."