In return he enjoys the following immunities: He pays no contributions—on the contrary, when his tribe proceeds to the Tell to buy grain a collection is made for his benefit. This immunity, however, he shares with the maker of sandals. "The worker in iron and the maker of boots pay no imposts." Neither is he called upon to offer kouskoussou or shelter to any one: in other words, he is exempted from the duty of hospitality, which in certain cases is imposed upon all. The constant toil demanded by his calling, the unavoidable accidents to which he is liable through the urgent wants of his brethren night and day, the sleepless nights he has to undergo, entitle him to certain dues, called _aâdet-el-maâllem_, "the master's dues." On their return from the purchase of grain in the Tell every tent makes over to him a _feutra_ of wheat and barley, and a _feutra_ of butter. In the spring he receives in addition the fleece of a ewe. If a camel is killed for eating, he claims the part comprised between the withers and the tail, deducting the hump, which, being covered with fat, is esteemed a delicacy. In razzias and expeditions, whether or not he has taken part in the enterprise, he is entitled to a share of the booty. Usually, it is a sheep, or a camel, according to the value of the prize. This due is known as the horseman's ewe. The most important privilege, however, accorded to farriers, the indisputable token of the protection they formerly enjoyed and of the esteem in which they are still held, is the gift of life on the field of battle. If a farrier is on horseback, with arms in his hands, he is liable to be killed like any other horseman of the _goum_; but if he alights and kneels down and imitates with the two corners of his burnous—raising and depressing them by turns—the movement of his bellows, his life will be spared. Many a horseman has saved his life by means of this stratagem. A farrier can only enjoy the benefit of this privilege by leading an inoffensive life, absorbed in the duties of his business; but if he distinguishes himself by his warlike prowess, he forfeits the privileges of his calling, and is treated as an ordinary horseman. These advantages, on the other hand, are compensated by a serious drawback. Should he happen to grow rich, a quarrel is fastened upon him and in one way or another a portion of his wealth is taken from him to prevent him from quitting the district.