From these border settlements, where the horses are necessarily turned out to graze on the prairie, some frequently escaped, as they are constantly surrounded by the wild horses. And every horse that has once got among such a troop, bids an eternal farewell to captivity. Hence we find among these animals the pure Arab blood, we recognise the clumsy English cart horse, the pony, the thorough-bred, and the racer. In short, there is such a display of every breed as no horse-fair in the world is able to show. I especially noticed an enormous number of greys, piebalds, and black horses among the troops; and that the differences of colour are far more frequent among them than with trained horses. They possess great speed for a short distance; for, on a lengthened race, owing to their grass feeding, they cannot keep up with a horse fed on corn, and hence they are often hunted down and captured by men mounted on the latter. For this purpose, the lasso is employed, whose noose is thrown over the horse's neck. So soon as the wild horse's neck is squeezed it falls quivering on the ground, and the captor finds time to place a halter or leathern thong round its neck. The noose is then slightly loosened, and a trial is made whether it will follow the rider by the halter. If it resists, the operation is repeated as often as is necessary to make the animal understand that it must yield to captivity. As a rule it follows soon; and can be easily tamed, especially when it is not too old. If these horses are fed on maize for awhile, they grow very strong and enduring. The fillies are the easiest to capture and tame. You need only chase a manada for some miles, and the fillies fall exhausted and do not rise again, and if they are raised on their legs after recovery, they will immediately follow the ridden horse, as their mares have disappeared with the troop.