He began by riding in among the cattle with one of his men, singling out a suitable bullock, and then the two together, one on either side, ran it out into the point of tame cattle, where it had to remain whether it liked to or not. Then a second bullock was run out, and so on, one after another, until quite a good number were parted. One of the tropero's men now went to help the Indians to guard them, as every now and again one would try to escape, intent on rejoining the main herd, and occasionally a bullock would break loose and make for the open camp, determined to fight hard for liberty. But it was not to be! for the men were well-mounted and knew their business, and the horses knew theirs. They were, of course, faster than the bullocks, and when an animal was desperate, and really refractory the lasso came into play, and he was brought back his energy spent, and having been well bullied about he generally thought it better to keep quiet for the time being. A really good horse for work of this kind must be safe and quick on his legs, and have plenty of courage. Indeed, the best thing the rider can do, if well mounted, is to sit tight and leave as much as he can to his horse, who seemed to know all that was expected of him, and was seldom found to fail.