So much for the life of the caravan by day. By night the desert is more romantic, but at the same time more dangerous. As the power of sight is now limited, the circle of safety is contracted to the most immediate neighbourhood; and both during the march and in the encampment every one tries to keep as close as possible to his fellows. By day the caravan consisted of but one long chain; by night this is broken up into six or eight smaller ones, which, marching close together, form a compact square, of which the outmost lines are occupied by the stoutest and boldest. By moonlight the shadow of the camels as they stalk along produces a curious and impressive effect. During the dark starless night everything is full of horror, and to go one step distant from the side of the caravan is equivalent to leaving the home circle to plunge into a desolate solitude. In the halt by day each one occupies whichever place may please him best. At night, on the contrary, a compact camp is formed under the direction of the _Kervan bashi_. The bales of goods are heaped up in the middle; around them lie the men; while without, as a wall of defence, the camels are laid, tightly packed together, in a circle. I say laid, for these wonderful animals squat down at the word of command, remain the whole night motionless in their place, and, like children, do not get up the next morning until they are told to do so. They are placed with their heads pointing outward and their tails inward, for they perceive the presence of any enemy from far, and give the alarm by a dull rattle in the throat, so that even in their hours of repose they do duty as sentinels. Those who sleep within the _rayon_ find themselves in immediate contact with these beasts, and, as is well known, they have not the pleasantest smell. It often happens that the saline fodder and water which these animals feed upon produce palpable consequences for such as sleep in their immediate neighbourhood. I myself often woke up with such frescoes. But no one takes any notice of such things, for who could be angry with these animals, who, although ugly in appearance, are so patient, so temperate, so good-tempered, and so useful?