"Each of his nostrils resembles the den of a lion; the wind rushes out of it when he is panting." The cavities in the interior of the nostrils ought to be entirely black. If they are partly black and partly white the horse is of only moderate value. The fetlock, thick. "They have fetlocks that resemble the down which is concealed beneath an eagle's wing and like him they grow black in the heat of battle." The fetlock joints, small. "The fetlock joints of their hind-legs are small, but the muscles on both sides stand out prominent." The hoof, round and hard. "The hoof should resemble the cup of a slave. They walk on hoofs hard as the moss-covered stones of a stagnant pool." The frogs, hard and dry. "The frogs concealed beneath the hoofs are seen when he lifts his feet, and resemble date-stones in hardness." "When my courser rushes towards a goal he makes a noise like to that of wings in motion, and his neigh resembles the mournful note of the nightingale." "His neck is long and graceful as a male ostrich's. His ear is split in two and his black eye full of fire." "In the elegance of his form he resembles a picture painted in a palace. He is as majestic as the palace itself." If by protruding his head and neck in order to drink from a stream that flows level with the ground, a horse can remain upright on all fours without bending either of his fore-legs, be assured that his form is perfect, that all parts of his body harmonise with one another, and that he is thoroughbred. Among the horses of the tribes of the Sahara, those of the Hamyân, the Arbâa, the Oulad-Naïl, and their respective branches, are the most patient of hunger and thirst, the most capable of enduring fatigue, the fleetest gallopers, and the most able to keep up a good pace for several days together without stopping,—very different in that respect from the horses of the Tell. There existed in ancient times several stallions whose fame has come down to us. Among others, _el Koura_, of the tribe of the Beni-Timin, and _Aouadj_, "the concave," of the tribe of the Beni-Helal. On the subject of this latter, the following anecdote is told: His master being asked, "what canst thou relate of a surprising nature in connection with thy horse?" recounted this anecdote: "I was wandering one day in the desert mounted on _Aouadj_, when I was seized with a violent thirst. By good fortune, I fell in with a flock of ketâa[32] flying towards a spring. I followed them, and though holding in my horse as much as possible, I reached the water as soon as they did, without once pulling up to breath him. It is a most extraordinary example of speed, for the flight of the _ketâa_, always rapid, is greatly quickened when, driven by thirst, it makes for water.... Had I not," continued the owner of _Aouadj_, "checked his speed by pulling at the bridle with all my force, I should have outstripped the _ketâa_."