At first, the Gauls, bending their whole force to one point, were in hopes of being able to overwhelm, and trample under foot, the right brigade, which was in the van; but not succeeding, they endeavoured to turn round the flanks, and to surround their enemy's line, which, considering the multitude of their forces, and the small number of the others, seemed easy to be done.

On observing this, the praetor, in order to extend his own line, brought up the two legions from the reserve, and placed them on the right and left of the brigade which was engaged in the van; vowing a temple to Jupiter, if he should rout the enemy on that day.

To Lucius Valerius he gave orders, to make the horsemen of the two legions on one flank, and the cavalry of the allies on the other, charge the wings of the enemy, and not suffer them to come round to his rear.

At the same time, observing that the centre of the line of the Gauls was weakened, from having extended the wings, he directed his men to make an attack there in close order, and to break through their ranks.

The wings were routed by the cavalry, and, at the same time, the centre by the foot; and suddenly, being worsted in all parts with great slaughter, the Gauls turned their backs, and fled to their camp in hurry and confusion.