Having arranged this, they mounted and hastened towards the hillocks in question, which they reached after ten minutes' gallop at full stretch. The sandy mounds afforded them concealment, and enabled them to watch the proceedings of the savages in the plain below. The scene was the most curious and exciting that can be conceived. The centre of the plain before them was crowded with hundreds of buffaloes, which were dashing about in the most frantic state of alarm. To whatever point they galloped they were met by yelling savages on horseback, who could not have been fewer in numbers than a thousand, all being armed with lance, bow, and quiver, and mounted on active little horses. The Indians had completely surrounded the herd of buffaloes, and were now advancing steadily towards them, gradually narrowing the circle, and whenever the terrified animals endeavoured to break through the line, they rushed to that particular spot in a body, and scared them back again into the centre. Thus they advanced until they closed in on their prey and formed an unbroken circle round them, whilst the poor brutes kept eddying and surging to and fro in a confused mass, hooking and climbing upon each other, and bellowing furiously. Suddenly the horsemen made a rush, and the work of destruction began. The tremendous turmoil raised a cloud of dust that obscured the field in some places, and hid it from our hunters' view. Some of the Indians galloped round and round the circle, sending their arrows whizzing up to the feathers in the sides of the fattest cows. Others dashed fearlessly into the midst of the black heaving mass, and, with their long lances, pierced dozens of them to the heart. In many instances the buffaloes, infuriated by wounds, turned fiercely on their assailants and gored the horses to death, in which cases the men had to trust to their nimble legs for safety. Sometimes a horse got jammed in the centre of the swaying mass, and could neither advance nor retreat. Then the savage rider leaped upon the buffaloes' backs, and springing from one to another, like an acrobat, gained the outer edge of the circle; not failing, however, in his strange flight, to pierce with his lance several of the fattest of his stepping-stones as he sped along. A few of the herd succeeded in escaping from the blood and dust of this desperate battle, and made off over the plains; but they were quickly overtaken, and the lance or the arrow brought them down on the green turf. Many of the dismounted riders were chased by bulls; but they stepped lightly to one side, and, as the animals passed, drove their arrows deep into their sides. Thus the tumultuous war went on, amid thundering tread, and yell, and bellow, till the green plain was transformed into a sea of blood and mire, and every buffalo of the herd was laid low.