I had not returned these vessels earlier, as I required all the sailors to assist in building the station, and in collecting corn for the troops. At this season (October) the Nile was at its maximum, therefore I hoped there would be no difficulty in the return voyage to Khartoum with empty vessels, and the stream in their favour. Had I returned them earlier, I should have been obliged to victual them for a four months' voyage, at a time when corn was extremely scarce. The sailors had now assisted us in our work, and they would not require provisions for more than two months, as the Nile was full. Every arrangement that I had made had been most carefully considered. There can be no doubt that the greatest enemy to the expedition was the White Nile. This adverse river had given a serious check. The work and fatigue in cutting through the obstructions had killed many men, and had laid the seeds of fatal complaints among many others. The men's hearts had been broken at the onset. There was even now a feeling of despair of the possibility of receiving supplies and reinforcements by river from Khartoum. We appeared to have forsaken the known world, and, having passed the river Styx, to have become secluded for ever in a wild land of our own, where all were enemies, like evil spirits, and where it was necessary either to procure food at the point of the bayonet, or to lie down and die. If the White Nile had been the fine, navigable river that I had known in former years, I believe I should have had no difficulty, as I could have quickly overcome the scruples of my officers by direct reports of their conduct to the Khedive; but we were lost to the world almost as absolutely as though quartered in the moon. I had proposed, when in Cairo, that steamers should run monthly between Khartoum and Gondokoro, with the post and all necessary supplies. In former days this would have been a matter of course, and the fact of a connection with the Soudan government would have supported discipline; but the frightful obstructions of the river rendered communication impossible, except by a regular expedition in large force. My own heart felt heavy sometimes; but I said nothing. I could easily appreciate the feelings of others, whose hearts were not actually in favour of the enterprise. Nevertheless I commanded, and no matter what the obstacles might be, I had only one duty. A new and sad calamity had attacked us. The well-known African horse-sickness broke out. In spite of every precaution, my horses died. The disease commenced by an appearance of languor, rapid action of the heart, scantiness of urine, costiveness, swelling of the forehead above the eyes, which extended rapidly to the whole head; stiffness and swelling of the neck, eyes prominent and bloodshot, running at the nose of foul greenish matter in extraordinary quantities,--convulsions, death.