It happened just as Hugh had said, and soon after they began to move forward, the animal gave another shrill whistle and again disappeared from view. "There's quite a piece of burnt timber about a half mile off here to the north; let's go over and look at that, and see if we can get the fence-poles that we need; then we'll leave our horses and go afoot a little way, to see if we can see any elk." They rode over to the timber which had been killed by fire some years before. Hugh spent some little time looking at it, but at length rode out into an open park, unsaddled his horse and tied its rope to a little tree, Jack doing the same. They took their rifles and started off along the edge of the timber on foot. "I see some elk sign in this timber, and some of it is right fresh, but if you see any elk before I do, don't shoot. I don't want to kill any old cows now, because their calves are right young and they'd be liable to starve to death. If we can find a heifer we'll kill one; she'll be in a pretty good order, and just what they want at the ranch." They had not gone far before Jack noticed in the dirt some tracks, and just as he was about to speak of them, Hugh stopped and said: "Now, son, I want you to look at these tracks: you see they look considerable like cattle tracks, but they ain't, they're elk. Now, look at this track here," he said, pointing to one of the largest, "that looks a good deal like the track of a two-year-old critter, but just see how long it steps; that will show you that it's an elk; the sign shows that it's a bull, but a young one. These other tracks you see here, they're cows and heifers and a yearling or two. Now, you see, these tracks are fresh; just notice how the dirt in each one seems kind of shining and polished. A big heavy animal putting its hoof down hard on the dirt makes the place where its weight rested look like that. Now, this track that I told you was a bull's, looks different; you can see that for yourself; it isn't polished but it looks kind of dull. The reason for that is that the wind has blown the dust about in the hoof mark and has partly covered it up. On dry ground like this an old track can always be told by that. Now, over there," he continued, pointing, "are some tracks made in the spring, when the ground was wet. Of course, you see that they sink in deep, as any tracks would that were made in the mud. It ain't much use for me to tell you about these things, except to make you notice quicker what the difference is in the different tracks you see. A man's got to study tracks a heap before ever he can become a good trailer. There isn't anything but experience that'll teach you what a track means, but often they tell a pretty plain story to a man who knows how to read them. It's wonderful to me to go out up in the mountains when there's a fresh snow on the ground. You can see just what all the birds and animals have been doing since the snow fell; and often