There was some foundation for such an apprehension, for the ground was none of the best for a race, and grew worse continually as we proceeded; indeed it soon became desperately bad, consisting of abrupt hills and deep hollows, cut by frequent ravines not easy to pass. At length, a mile in advance, we saw a band of bulls. Some were scattered grazing over a green declivity, while the rest were crowded more densely together in the wide hollow below. Making a circuit to keep out of sight, we rode toward them until we ascended a hill within a furlong of them, beyond which nothing intervened that could possibly screen us from their view. We dismounted behind the ridge just out of sight, drew our saddle-girths, examined our pistols, and mounting again rode over the hill, and descended at a canter toward them, bending close to our horses' necks. Instantly they took the alarm; those on the hill descended; those below gathered into a mass, and the whole got in motion, shouldering each other along at a clumsy gallop. We followed, spurring our horses to full speed; and as the herd rushed, crowding and trampling in terror through an opening in the hills, we were close at their heels, half suffocated by the clouds of dust. But as we drew near, their alarm and speed increased; our horses showed signs of the utmost fear, bounding violently aside as we approached, and refusing to enter among the herd. The buffalo now broke into several small bodies, scampering over the hills in different directions, and I lost sight of Shaw; neither of us knew where the other had gone. Old Pontiac ran like a frantic elephant up hill and down hill, his ponderous hoofs striking the prairie like sledge-hammers. He showed a curious mixture of eagerness and terror, straining to overtake the panic-stricken herd, but constantly recoiling in dismay as we drew near. The fugitives, indeed, offered no very attractive spectacle, with their enormous