This weapon consisted of a steel blade about eleven inches long and three-quarters of an inch in width, with a single barb. To it was attached a strong rope twenty feet long, with a float as large as a child's head at the extremity. Into the harpoon was fixed a piece of bamboo ten feet long, around which the the rope was twisted, while the buoy was carried on the hunter's left hand. After proceeding a couple of miles, a herd of hippopotami were seen in a pool below a rapid surrounded by rocks. He, however, remarking that they were too wide-awake to be attacked, continued his course down the stream till a smaller pool was reached. Here the immense head of a hippopotamus was seen, close to a perpendicular rock that formed a wall to the river. The old hunter, motioning the travellers to remain quiet, immediately plunged into the stream and crossed to the opposite bank, whence, keeping himself under shelter, he made his way directly towards the spot beneath which the hippopotamus was lying. "Stealthily he approached, his long thin arm raised, with the harpoon ready to strike. The hippopotamus, however, had vanished, but far from exhibiting surprise, the veteran hunter remaining standing on the sharp ledge, unchanged in attitude. No figure of bronze could be more rigid than that of the old river king, as he thus stood, his left foot advanced, his right-hand grasping the harpoon above his head, and his left the loose coil of rope attached to the buoy." "Three minutes thus passed, when suddenly the right arm of the statue descended like lightening, and the harpoon shot perpendicularly into the pool with the speed of an arrow. In an instant an enormous pair of open jaws appeared, followed by the ungainly head and form of a furious hippopotamus, who, springing half out of the water, lashed the river into foam as he charged straight up the violent rapids. With extraordinary power he breasted the descending stream, gaining a footing in the rapids where they were about five feet deep, thus making his way, till, landing from the river, he started at full gallop along the shingly bed, and disappeared in the thorny jungle. No one would have supposed that so unwieldy an animal could have exhibited such speed, and it was fortunate for old Neptune that he was secure on the high ledge of rock, for had he been on the path of the infuriated beast, there would have been an end of Abou Do."