"It was something on the same plan as the way in which they trapped the buffalo; they built two long straight fences which almost came together at one end and were far apart at the other. At the end of the fences where they almost came together, the Indians either built a corral or dug a deep pit which they roofed over by slender poles on which they put grass and dirt. Now you have heard that the antelope is very curious. If he sees anything that he does not understand or can't quite make out he is likely to go up closer to it, so as to see what this object really is. The Indians took advantage of this weakness of the antelope and by means of it decoyed bunches of them into the space between the widely separated ends of these two fences. Other Indians were hidden behind the fence, and as soon as the herd got started down between these wings the Indians near the end of the fence ran out and got behind the antelope, which were then forced to run down towards the pit or the corral. If it was a pit, they broke through the roof in running over it, or they ran into the corral where they were killed by the Indians, who were hidden near-by. "Down in Utah and Colorado, south-west of here, I have seen in several places the remains of these fences and corrals. I do not know that the Indians hereabouts ever caught the antelope in pits, but men who have lived up north with the Blackfeet and Cheyennes, tell me that up there they used the pits instead of the corrals. "So you see, my boy, the antelope has his troubles like other people. It isn't all cake and pie for him, even though he can run fast and lives out on the prairie where he can see a long distance." "That's so, Uncle Will," said Jack, "I never thought of all these things." While the two had been talking they had forgotten about the antelope, and these had now been long left behind. Now the train with a long groaning whistle plunged into the darkness of a snow shed, and a few moments later ran out past the border of a large lake, the surface of which was covered with ducks and geese which rose from the water until the air was fairly dark with their numbers. The whistle of the duck's wings and the clamour of the honking geese could be heard, even though the car windows were shut, and the passengers all gathered at the windows to look at the great flocks of birds. When they had passed out of sight of the lake his uncle said to Jack: "That is the Medicine Lake, and the next stop is our station. Better ring the bell for the porter, so that he can have all our things together ready to put off." "Well, Thomas," he said to the smiling coloured man who came up, brush in hand, "we are going to leave you now. Please get all our things ready to throw off. You know the train does not stop long."