Again I was on Observation Hill two or three times in the day. It is impossible to keep away from it long. The rumble of the British guns was loud but intermittent, but the Boer camps remain where they were. With us the bombardment continued pretty steadily. After a silence of two days "Puffing Billy," of Bulwan, threw one shell into the town and six among the Devons. His usual answer to the report that he has worn himself out or been carried away. Whilst he was firing I tried to get sight of a small mocking bird, which has learnt to imitate the warning whistle of the sentries. In the Gordons the Hindoo, Purriboo Singh, from Benares, stands on a huge heap of sacks under an umbrella all day and screams when he sees the big gun flash. But in the other camps, as I have mentioned, a sentry gives warning by blowing a whistle. The mocking bird now sounds that whistle at all times of the day, and what is even more perplexing, he is learning to imitate the scream and buzzle of the shell through the air. He may learn the explosion next. I mention this peculiar fact for the benefit of future ornithologists, who might otherwise be puzzled at his form of song. Another interesting event in natural history occurred a short time ago up the Port road. A Bulwan shell, missing the top of Convent Hill, lobbed over and burst at random with its usual din and circumstance. People rushed up to see what damage it had done, but they only found two little dead birds--one with a tiny hole in her breast, the other with an eye knocked out. Ninety-six pounds of iron, brass, and melinite, hurled four miles through the air, at unknown cost, just to deal a true-lovers' death to two sparrows, five of which are sold for one farthing! _Sunday, January 21, 1900._ After varying my trek-ox rations by catching a kind of barbel with a worm in the yellow Klip, I went again to Observation Hill, and with the greater interest because every one was saying two of the Boer camps were in flames. Of course it was a lie. The camps stood in their usual places quite undisturbed. But I saw one of our great shells burst high up the mountain side of Taba Nyama (Black Mountain) instead of on the plain at its foot, and with that sign of forward movement I was obliged to be content. CHAPTER XVIII "WITHIN MEASURABLE DISTANCE" _January 22, 1900._