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Rh their tops, which floated on the placid surface, were tied a variety of rags which we had brought with us, such as old red flannel shirts, gay-coloured but worn-out blankets, and I know not what besides. Some of these fragments also were attached to the anchored ropes under water.

Also we selected places for the guns upon the steep banks that I have mentioned, between which this channel ran. Foreseeing what would happen, I chose one for myself behind a particularly stout rock and what is more, built a stone wall to the height of several feet on the landward side of it, as I guessed that the natives posted near to me would prove wild in their shooting.

These labours occupied the rest of that day, and at night we retired to higher ground to sleep. Before dawn on the following morning we returned and took up our stations, some on one side of the channel and some on the other which we had to reach in a canoe brought for the purpose by the river natives.

Then, before the sun rose, Captain Robertson fired a huge pile of dried reeds and bushes, which was to give the signal to the river natives far away, to begin their beat. This done, we sat down and waited, after making sure that every gun had plenty of ammunition ready.

As the dawn broke, by climbing a tree near my schanze or shelter, I saw a good many miles away to the south a wide circle of little fires, and guessed that the natives were beginning to burn the dry reeds of the swamp. Presently these fires drew together into a thin wall of flame. Then I knew that it was time to return to the schanze and prepare. It was full daylight, however, before anything happened.

Watching the still channel of water, I saw ripples on it and bubbles of air rising. Suddenly there appeared the head of a great bull-hippopotamus which, having caught sight of our rag barricade, either above or below water, had risen to the surface to see what it might be. I put a bullet from an eight-bore rifle through its brain, whereon it sank, as I guessed, stone dead to the bottom of the channel, thus helping to increase the barricade by the bulk of its great body. Also it had another effect. I have observed that sea-cows cannot bear the smell and taint of blood which frightens them horribly, so that they will expose themselves to almost any risk, rather than get it into their nostrils.