Ammianus (xiv. 4) gives a lively description of the wandering and predatory life of the Saracens, who stretched from the confines of Assyria to the cataracts of the Nile. It appears from the adventures of Malchus, which Jerom has related in so entertaining a manner, that the high road between Beraea and Edessa was infested by these robbers. See Hieronym. tom. i. p. 256.