The well is east from our encampment two hours, and under the mountains. There is encamped the Sfaxee, who went by the more difficult route, to arrive at Ghât before us; but it seems he will be disappointed. He came by the pass by which I returned formerly from Ghât to Mourzuk,--certainly too difficult and narrow for the transport of the boat. _15th._--I rose early, and marched about three hours and a half to the well, under the Kasar Janoon; that is to say, four or five miles along the base of the eastern wall of the Kasar. But this day's adventures deserve more particular chronicle. The Germans had determined to go and examine the Kasar, and were about to start just as I came out of my tent. They had had some altercation with Hateetah, because, partly for superstitious reasons, he would not give them a guide, and they had made up their minds to undertake the exploration alone. I saw Dr. Barth going off somewhat stiffly by himself; Dr. Overweg came to where I was standing, and asked Amankee, my Soudan servant, about the well near the Kasar, and then also went off. He said to me, "I shall boil the water on the highest point, and then go along the top to the other end." He was taking some points of the Kasar with the compass, and I observed to him, "Take the eastern point." Then he started. Yusuf called out after him, "Take a camel with you, it is very distant." Distressed at seeing them go alone, I told Amankee that if he would follow I would give him a present. He agreed, upon the condition that he should not be expected to ascent the Kasar; for he feared the Janoon. We then gave him dates, biscuits, and a skin of water, and he started after Dr. Overweg. I confess I had my fears about them. On arriving near the well, we pitched tent near an immense spreading old ethel, which afforded us some shade. I watched the changing aspect of the Kasar nearly all the time of our three hours' ride; and could not help thinking that the more it was examined the more marvellous did it appear. I then looked out to recognise the place where I was lost four years ago, and at last I thought I could distinguish the locality. The day wore on. It blew gales of hot wind. No Germans appeared, although it had been told them that we should only stop during the hot hours of the day. However, I anticipated that they would not arrive before sunset. Hateetah sent word, that as there was little water he should not move on till to-morrow. This was good news for the Germans.