The consul was under the impression that the king was at Thyatira, and he marched for five successive days till he came down into the Hyrcanian plain. When he heard that Antiochus had moved from there he followed in his track, and encamped on the western bank of the Phrygius at a distance of four miles from the enemy. Here a force of about iooo cavalry, mostly Gallograeci, together with some Dahae and mounted archers from other tribes, made a tumultuous rush across the river and charged the Roman advanced posts. At first, as they were unprepared, there was some confusion, but as the battle went on and the numbers of the Romans grew with the reinforcements from the camp close by, the king's troops, wearied and outnumbered, endeavoured to effect their retreat across the river. Before they entered the stream, however, a considerable number were killed by their adversaries, who were in close pursuit. For the next two days all was quiet, neither side making any attempt to cross the river. On the third day the whole of the Roman armv crossed in a bodv. and formed caMD about two ana a nar mues from the enemy. w mist tney were measuring out the area of the camp and busy entrenching it, considerable alarm and confusion were created by the approach of a picked force of 3000 infantry and cavalry. Those forming the advanced guard were much fewer in number, but they maintained a. steady resistance by themselves, not a single soldier being called away from the working-parties in the camp, and as the fighting progressed they repulsed the enemy, after killing ioo of them and taking ioo prisoners. For the next four days both armies stood in front of their ramparts drawn up for battle;on the fifth day the Romans advanced into the middle of the Dlain. but Antiochus made no forward movement. his front lines remained in position less than a mile from their rampart.