Prince, unbidden, swerved to the right course and we followed hard on the heels of the flying game. It was at length a stern chase. A word to my faithful horse and his stride quickened. Soon it was clear that we were gaining. Herein was an illustration of how the instinct of animals, usually so true, may occasionally mislead them. These creatures, in the hour of danger blindly surrendering to the gregarious idea ingrained through the experience of ages, crowded so hard on each other that they got half-smothered in their own dust. Hence it is far more easy to ride down a large herd of oryx than a small one. When it is a case of a single animal, or even of two or three, a stern chase is almost hopeless, no matter how swift one's mount. I was gaining rapidly; I overhauled the fawns and immature animals and pressed through, passing some of them within a few yards. One I had to turn out of my way by leaning forward from the saddle and prodding it with the muzzle of my rifle. Those young things followed after me, bent only on overtaking their elders; apparently oblivious of the circumstance that I was their enemy. I overtook the crowd of cows; it opened out and scattered on either hand. I was now riding in a cloud of dust, the phalanx of bulls being only about a hundred and fifty yards ahead; the animals could be but dimly discerned through the dust-cloud. I had to gain another hundred yards without attempting to dismount; not again would I yield to impatience. The hundred yards were soon gained; Prince shewed signs of flagging, so I had to look out for a soft place whereon I could roll from the saddle without hurting myself. My second wind had come; I was as steady as a rock, but eyes, throat and nostrils were smarting from the acrid, pungent dust. I dropped the reins on Prince's neck; he shortened his stride and I rolled from his back on my right-hand side. I could just see the bulls, but the dust was so thick that it was impossible to pick an animal, so I fired into the brown of the moving mass. My bullet thudded hard; that was enough,--I would not fire again. The herd of oryx sped on; I remounted and followed at a slow canter. Yes,--there was my quarry,--a bull turned out of the press and faltered in his course. I rode towards him; he still cantered but his gait was laboured. He stood, turned and faced me. He was a noble brute,--a leader among the oryx people. Still as a statue he stood, defying his enemy. His wire-like hair was erect and quivering; his red, trumpet-formed nostrils seemed to exude defiance; his shoulders and flanks were heavily banded with streaks of foam. In spite of the long chase he did not appear to pant.