"I summoned all the officers, and in the presence of Raouf Bey I explained the necessity. The vessels immediately commenced the return voyage, all the officers and men being delighted at the idea of a retreat which they imagined would take them to Khartoum, and terminate the expedition; thus I had little sympathy.--However, I determined to make arrangements for the following season that would enable me to cut through every difficulty. I kept these intentions to myself, or only shared them with my wife and Lieutenant Baker. "April 3.--Washed decks early, and sent off three soldiers, thus reducing the escort on the diahbeeah to seven men. "The entire fleet was in full retreat with wind and stream in favour. I would not permit the diahbeeah that had always led the advance to accompany them in the retreat; therefore I allowed them to push on ahead. "A shower of rain fell to-day; also yesterday. "A few minutes after starting, both the steamers stuck fast. As I was walking the poop of the diahbeeah, I noticed with the telescope an antelope standing on the summit of an ant-hill about a mile and a quarter distant. There is no change so delightful as a little sport if you are in low spirits; thus, taking the rifle, I rowed up the river for about half a mile in the small boat, and then landing, I obtained the right wind. It was exceedingly difficult to approach game in these extensive treeless flats, and it would have been quite impossible, had it not been for the innumerable hills of the white ants; these are the peculiar features of these swampy countries, and the intelligence of the insects directs their architecture to a height far above the level of the highest floods. The earth used in their construction is the subsoil, brought up from a considerable depth, as the ant-hills are yellow, while the surface soil is black. The earth is first swallowed by the insect and thus it becomes mixed with some albuminous matter which converts it into a cement that resists the action of rain. These hills were generally about eight feet high in the swampy districts, but I have frequently seen them above ten feet. The antelopes make use of such ant-hills as watch towers, from which lofty position they can observe an enemy at a great distance. It is the custom of several varieties to place sentries while the herd is grazing, and upon this occasion, although the sentry was alone visible, I felt sure that the herd was somewhere in his neighbourhood. I have noticed that the sentries are generally bulls. On this occasion I resolved, if possible, to stalk the watchman. I was shooting with a very accurate express rifle, a No. 70 bore of Purdey's, belonging to my friend, Sir Edward Kerrison, who had kindly lent it to me as a favourite weapon when I left England. The grass was very low, and quite green, as it had been fired by the wandering natives some time since; thus, in places there were patches of