break the force of the current.  These accounts can scarcely gain credit with those who are acquainted with that river; for it is neither probable that the cavalry could bear up against the great violence of the stream, without losing their arms or horses, even supposing that inflated bags of leather had transported all the Spaniards; and the fords of the Po, by which an army encumbered with baggage could pass, must have been sought by a circuit of many days’ march.  Those authors are more credited by me, who relate that in the course of two days a place was with difficulty found fit for forming a bridge of rafts across the river, and that by this way the light-armed Spanish cavalry was sent forward with Mago.  Whilst Hannibal, delaying beside the river to give audience to the embassies of the Gauls, conveys over the heavy-armed forces of infantry, in the mean time Mago and the cavalry proceed towards the enemy at Placentia one day’s journey after crossing the river.  Hannibal, a few days after, fortified his camp six miles from Placentia, and on the following day, having drawn up his line of battle in sight of the enemy, gave them an opportunity of fighting.

48.  On the following night a slaughter was made in the Roman camp by the auxiliary Gauls, which appeared greater from the tumult than it proved in reality.  Two thousand infantry and two hundred horse, having killed the guards at the gates, desert to Hannibal; whom the Carthaginians having addressed kindly, and excited by the hope of great rewards, sent each to several states to gain over the minds of their countrymen.  Scipio, thinking that that slaughter was a signal for the revolt of all the Gauls, and that, contaminated with the guilt of that affair, they would rush to arms as if a frenzy had been sent among them, though he was still suffering severely from his wound, yet setting out for the river Trebia at the fourth watch of the following night with his army in silence, he removes his camp to higher ground and hills more embarrassing to the cavalry.  He escaped observation less than at the Ticinus:  and Hannibal, having despatched first the Numidians and then all the cavalry, would have thrown the rear at least into great confusion, had not the Numidians, through anxiety for booty, turned aside into the deserted Roman camp.  There whilst, closely examining every part of the camp, they waste time, with no sufficient reward for the delay, the enemy escaped out of their hands; and when they saw the Romans already across the Trebia, and measuring out their camp, they kill a few of the loiterers intercepted on that side of the river.  Scipio being unable to endure any longer the irritation of his wound, caused by the roughness of the road, and thinking that he ought to wait for his colleague, (for he had now heard that he was recalled from Sicily,) fortified a space of chosen ground, which, adjoining the river, seemed safest for a stationary camp.  When Hannibal had encamped not far from thence, being