Dick had left his encampment a week ago, and was now advancing by rapid stages towards the Rocky Mountains, closely following the trail of his lost comrades, which he had no difficulty in finding and keeping now that Crusoe was with him. The skin of the buffalo that he had killed was now strapped to his shoulders, and the skin of another animal that he had shot a few days after was cut up into a long line and slung in a coil round his neck. Crusoe was also laden. He had a little bundle of meat slung on each side of him. For some time past numerous herds of mustangs, or wild horses, had crossed their path, and Dick was now on the look-out for a chance to _crease_ one of those magnificent creatures. On one occasion a band of mustangs galloped close up to him before they were aware of his presence, and stopped short with a wild snort of surprise on beholding him; then, wheeling round, they dashed away at full gallop, their long tails and manes flying wildly in the air, and their hoofs thundering on the plain. Dick did not attempt to crease one upon this occasion, fearing that his recent illness might have rendered his hand too unsteady for so extremely delicate an operation. In order to crease a wild horse the hunter requires to be a perfect shot, and it is not every man of the west who carries a rifle that can do it successfully. Creasing consists in sending a bullet through the gristle of the mustang's neck, just above the bone, so as to stun the animal. If the ball enters a hair's-breadth too low, the horse falls dead instantly. If it hits the exact spot, the horse falls as instantaneously, and dead to all appearance; but, in reality, he is only stunned, and if left for a few minutes will rise and gallop away nearly as well as ever. When hunters crease a horse successfully they put a rope, or halter, round his under jaw and hobbles round his feet, so that when he rises he is secured, and, after considerable trouble, reduced to obedience. The mustangs which roam in wild freedom on the prairies of the far west are descended from the noble Spanish steeds that were brought over by the wealthy cavaliers who accompanied Fernando Cortez, the conqueror of Mexico, in his expedition to the New World in 1518. These bold, and, we may add, lawless cavaliers were mounted on the finest horses that could be procured from Barbary and the deserts of the Old World. The poor Indians of the New World were struck with amazement and terror at these awful beings, for, never having seen horses before, they believed that horse and rider were one animal. During the wars that followed many of the Spaniards were killed, and their steeds bounded into the wilds of the new country, to enjoy a life of unrestrained freedom. These were the forefathers of the present race of magnificent creatures which are found in immense droves all over the western wilderness, from the Gulf of Mexico to the confines of the snowy regions of the far north.