We again visited the remarkable volcanic cone of Koukab. As we drew near to it, Mijwell detected, in the loose soil, the footprints of two men, which he immediately recognised to be those of Shammar thieves returning from the Kurdish encampments. The sagacity of the Bedouin in determining from such marks, whether of man or beast, and, from similar indications, the tribe, time of passing, and business, of those who may have left them, with many other particulars, is well known. In this respect he resembles the American Indian, though the circumstances differ under which the two are called upon to exercise this peculiar faculty. The one seeks or avoids his enemy in vast plains, which, for three-fourths of the year, are without any vegetation; the other tracks his prey through thick woods and high grass. The quickness of perception is the result of continual observation and of caution encouraged from earliest youth. Whilst the child in a civilised country is still under the care of its nurse, the Bedouin boy is compelled to exercise his highest faculties, and on his prudence and sagacity may sometimes depend the safety of his tribe. The expert Bedouin can draw conclusions from the footprints and dung of animals that would excite the astonishment of an European. He will tell whether the camel was loaded or unloaded, whether recently fed or suffering from hunger, whether fatigued or fresh, the time when it passed by, whether the owner was a man of the desert or of the town, whether a friend or foe, and sometimes even the name of his tribe. We encamped for the night near the mound of Thenenir, and resumed our journey on the following morning. Bidding farewell to the pleasant banks of the Khabour, we struck into the Desert in the direction of the Sinjar. Extensive beds of gypsum, or alabaster, such as was used in the Assyrian edifices, formed for some miles the surface of the plain. We soon approached a dense mass of reeds and rank herbage, covering a swamp called the Hol, which extends from the Lake of Khatouniyah to within a short distance of the Khabour. This jungle is the hiding-place of many kinds of wild beasts: lions lurk in it, and in the thick cover the Bedouins find their cubs. During our journey an Arab joined us, riding on a deloul, with his wife. His two children were crammed into a pair of saddle-bags, a black head peeping out of either side. He had quarrelled with his kinsmen, and was moving with his family and little property to another tribe. After a six hours' ride we found ourselves upon the margin of a small lake, whose surface reflected the deep blue of the cloudless sky. In the midst was a peninsula, joined to the mainland by a narrow causeway, and beyond it a small island. On the former were the ruins of a town, whose falling walls and towers were doubled in the clear waters.