text:  For the Roman columns on the right and left finding the Gaulish and Spanish foot advancing in a convex line or wedge pressed forwards to assail what seemed the flanks of the enemy's column; so that being already drawn up with too narrow a front by their original formation they now became compressed still more by their own movements the right and left converging towards the centre till the whole army became one dense column which forced its way onwards by the weight of its charge and drove back the Gauls and Spaniards into the rear of their own line