In the plain between the Ticino and the Sesia, not far from Vercelli, the Roman cavalry, which had advanced with the light infantry to make a reconnaissance in force, encountered the Punic cavalry sent out for the like purpose, both led by the generals in person.

Scipio accepted battle when offered, notwithstanding the superiority of the enemy; but his light infantry, which was placed in front of the cavalry, dispersed before the charge of the heavy cavalry of the enemy, and while the latter engaged the masses of the Roman horsemen in front, the light Numidian cavalry, after having pushed aside the broken ranks of the enemy's infantry, took the Roman horsemen in flank and rear.

This decided the combat.

The loss of the Romans was very considerable.

The consul himself, who made up as a soldier for his deficiencies as a general, received a dangerous wound, and owed his safety entirely to the devotion of his son of seventeen, who, courageously dashing into the ranks of the enemy, compelled his squadron to follow him and rescued his father.