One of the fifteen provinces of Syria, the cultivated lands to the eastward of the Jordan, had been decorated by Roman vanity with the name of _Arabia_; and the first arms of the Saracens were justified by the semblance of a national right. The country was enriched by the various benefits of trade; by the vigilance of the emperors it was covered with a line of forts; and the populous cities of Gerasa, Philadelphia, and Bosra, were secure, at least from a surprise, by the solid structure of their walls. The last of these cities was the eighteenth station from Medina: the road was familiar to the caravans of Hejaz and Irak, who annually visited this plenteous market of the province and the desert: the perpetual jealousy of the Arabs had trained the inhabitants to arms; and twelve thousand horse could sally from the gates of Bosra, an appellation which signifies, in the Syriac language, a strong tower of defence. Encouraged by their first success against the open towns and flying parties of the borders, a detachment of four thousand Moslems presumed to summon and attack the fortress of Bosra. They were oppressed by the numbers of the Syrians; they were saved by the presence of Caled, with fifteen hundred horse: he blamed the enterprise, restored the battle, and rescued his friend, the venerable Serjabil, who had vainly invoked the unity of God and the promises of the apostle. After a short repose, the Moslems performed their ablutions with sand instead of water; and the morning prayer was recited by Caled before they mounted on horseback. Confident in their strength, the people of Bosra threw open their gates, drew their forces into the plain, and swore to die in the defence of their religion. But a religion of peace was incapable of withstanding the fanatic cry of “Fight, fight! Paradise, paradise!” that reechoed in the ranks of the Saracens; and the uproar of the town, the ringing of bells, and the exclamations of the priests and monks increased the dismay and disorder of the Christians. With the loss of two hundred and thirty men, the Arabs remained masters of the field; and the ramparts of Bosra, in expectation of human or divine aid, were crowded with holy crosses and consecrated banners. The governor Romanus had recommended an early submission: despised by the people, and degraded from his office, he still retained the desire and opportunity of revenge. In a nocturnal interview, he informed the enemy of a subterraneous passage from his house under the wall of the city; the son of the caliph, with a hundred volunteers, were committed to the faith of this new ally, and their successful intrepidity gave an easy entrance to their companions. After Caled had