The Roman History · Amm. 15.10.11

But still, having regard to the interests of the republic, he ordered Cnæus Scipio, his brother, to go into Spain, to prevent Hasdrubal from making a similar expedition from that country. But Hannibal, having received information of their design by some deserters, being also a man of great shrewdness and readiness of resources, obtained some guides from the Taurini who inhabited those districts, and passing through the Tricastini and through the district of the Vocontii, he thus reached the defiles of the Tricorii. Then starting from this point, he made another march over a line previously impassable. And having cut through a rock of immense height, which he melted by means of mighty fires, and pouring over it a quantity of vinegar, he proceeded along the Druentia, a river full of danger from its eddies and currents, until he reached the district of Etruria. This is enough to say of the…

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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