The second day brought us to a camp beside a stream of pure sweet water, a welcome change after all the dirty pools and salt-laden springs which we had experienced. The following day, after a halt near some dirty springs at noon, we started on another long waterless trek in the late afternoon. We went on steadily all night, passing a large prairie fire. These fires are started to burn up the old long grass and make way for the fresh growth. They extend for miles, and at night are a fine sight, with heavy clouds of smoke hanging above. We halted for two hours about two in the morning, and then got under way once more. About nine o'clock we came to a good stream and towards midday reached our camp at Demir Kapo. Here, there was a small river which yielded a number of fish. We saw a few Germans, and a German wireless section was camped near. We bathed in the stream, and were very glad to rest for the remainder of the day and the following morning. Two more marches brought us to Nisibin. The country after leaving Mosul had been almost uninhabited, but here there were small villages dotted about. On getting nearer to them, we found that they were deserted; our guards told us they were Armenian villages, and that the people had all been killed earlier in the war. We passed a great many of these awful testimonies to the barbarity of Turkish politics. Away on our right, as we approached Nisibin, could be seen Mardin, a city built on a rock overlooking the plains, and forming, as it were, a look-out from the southern fringe of the Taurus Mountains. As to how far Mardin also was a city of the dead, it was impossible to tell. Before the war, the main Armenian population had extended from this district over a belt of land running north-eastwards up to Erzerum and Van. At Nisibin, we camped near the river, and had a full day's rest. This place saw as much fighting as any spot in Mesopotamia in the old days, having been the frontier station between Rome and Parthia. There are not many relics of the past to be seen at the present day, but close to our bivouac stood four old pillars, bearing transverse stones which had formed part of the Roman Forum. They stood out forlornly in a field on high ground, and, as might be expected, supported a stork's nest. These birds often build a new nest on the top of one or more old ones: they are very common in Mesopotamia, and several were seen in Bagdad.