While the south of Gaul was the scene of serious troubles, Cæsar left the quæstor Mark Antony, with fifteen cohorts, in the country of the Bellovaci. To deprive the Belgæ of all idea of revolt, he had proceeded to the neighbouring countries with two legions, had exacted hostages, and restored confidence by his conciliating speeches. When he arrived among the Carnutes, who, the year before, had been the first to revolt, he saw that the remembrance of their conduct kept them in great alarm, and he resolved to put an end to it by causing his vengeance to fall only upon Gutruatus, the instigator of the war. This man was brought and delivered up; and although Cæsar was naturally inclined to indulgence, he could not resist the tumultuous entreaties of his soldiers, who made that chief responsible for all the dangers they had run, and for all the misery they had suffered. Gutruatus died under the stripes, and was afterwards beheaded.
It was in the land of the Carnutes that Cæsar received news, by the letters of Rebilus, of the events which had taken place at Uxellodunum, and of the resistance of the besieged. Although a handful of men shut up in a fortress was not very formidable, he judged it necessary to punish their obstinacy, for fear that the Gauls should acquire the conviction that it was not strength, but constancy, which had failed them in resisting the Romans; and lest this example might encourage the other states, which possessed fortresses advantageously situated, to recover their independence.
Moreover, it was known everywhere amongst the Gauls that Cæsar had only one summer more to hold his command, and that after that they would have nothing more to fear. He left, therefore, the lieutenant Quintus Calenus[552] at the head of his two legions, with orders to follow him by ordinary marches, and with his cavalry he hastened by long marches towards Uxellodunum.
Cæsar, arriving unexpectedly before that town, found it completely invested on all accessible points. He judged that it could not be taken by assault (neque ab oppugnatione recedi videret ulla conditione posse), and, as it was abundantly provided with provisions, he conceived the project of depriving the inhabitants of water. The mountain was surrounded nearly on every side by very low ground; but on one side there existed a valley through which a river (the Tourmente) ran. As it flowed at the foot of two precipitous mountains, the disposition of the localities did not admit of turning it aside and conducting it into lower channels. It was difficult for the besieged to come down to it, and the Romans rendered the approaches to it still more dangerous. They placed posts of archers and slingers, and brought engines which commanded all the slopes which gave access to the river. The besieged had thenceforth no other means of procuring water but by fetching it from an abundant spring which arose at the foot of the wall, 300 feet from the channel of the Tourmente. (See Plate 31.) Cæsar resolved to drain this spring, and for this purpose he did not hesitate to attempt a laborious undertaking: opposite the point where it rose, he ordered covered galleries to be pushed forwards against the mountain, and, under protection of these, a terrace to be raised, labours which were carried on in the middle of continual fights and incessant fatigues. Although the besieged, from their elevated position, fought without danger, and wounded many Romans, yet the latter did not yield to discouragement, but continued their task. At the same time they made a subterranean gallery, which, running from the covered galleries, was intended to lead up to the spring. This work, carried on free from all danger, was executed without being perceived by the enemy; the terrace attained a height of sixty feet, and was surmounted by a tower of ten stories, which, without equalling the elevation of the wall, a result it was impossible to obtain, still commanded the fountain. (See Plate 32.) Its approaches, battered by engines from the top of this tower, became inaccessible; in consequence of this, many men and animals in the place died of thirst. The besieged, terrified at this mortality, filled barrels with pitch, grease, and shavings, and rolled them in flames upon the Roman works, making at the same time a sally, so as to prevent them from extinguishing the fire; soon it spread to the covered galleries and the terrace, which stopped the progress of the inflammable materials. Notwithstanding the difficulty of the ground and the increasing danger, the Romans still persevered in their struggle. The battle took place on a height, within sight of the army; loud cries were raised on both sides; each individual sought to rival his fellows in zeal, and the more he was exposed to view, the more courageously he faced the missiles and the fire.
Cæsar, as he was sustaining great loss, determined to feign an assault, in order to create a diversion: he ordered some cohorts to climb the hill on all sides, uttering loud cries. This movement terrified the besieged, who, fearing to be attacked on other points, called back to the defence of the wall those who were setting fire to the works. Then the Romans were able to extinguish the fire. Nevertheless, the siege span out in length; the Gauls, although exhausted by thirst and reduced to a small number, did not cease to defend themselves vigorously. At length, the subterranean gallery having reached the veins of the spring, they were taken and turned aside. The besieged, seeing the fountain all at once dried up, believed, in their despair, that it was an intervention of the gods, submitted to necessity, and surrendered.
Cæsar considered that the pacification of Gaul would never be completed if the same resistance was encountered in many other towns. He thought it indispensable to spread terror by a severe example, so much the more as “the well-known mildness of his temper,” says Hirtius, “would not allow this necessary rigour to be ascribed to cruelty.” He ordered all those who had carried arms to have their hands cut off, and sent them away, as living witnesses of the chastisement reserved for rebels. Drappes, who had been taken prisoner, starved himself to death; Lucterius, who had been arrested by the Arvernan Epasnactus, a friend of the Romans, was delivered up to Cæsar.[553]
Excavations made at Puy-d’Issolu.
VII. The excavations made at Puy-d’Issolu in 1865 leave no further doubt as to the site of Uxellodunum. (See Plates 31 and 32.)
The Puy d’Issolu is a lofty mountain, situated not far from the right bank of the Dordogne, between Vayrac and Martel; it is isolated on all sides except towards the north, where it is joined by a defile of 400 mètres wide (the Col de Roujon) to heights named the Pech-Demont. Its plateau, crowned by a circle of perpendicular rocks, commands, almost in every direction, the low ground which surrounds it. This is what the author of the VIIIth book De Bello Gallico expresses by these words: Infima vallis totum pæne montem cingebat in quo positum erat præruptum undique oppidum Uxellodunum. This plateau, with a surface of eighty hectares in extent, presents strongly-marked undulations: its general incline lies from the north to the south, in the direction of the length of the mountain mass; its highest point is 317 mètres above the level of the sea, and it rises 200 mètres above the valleys which surround it.
The whole eastern slope of the mountain, that which looks towards Vayrac and the Dordogne, is surmounted with rocks, which have a height of as much as forty mètres; consequently, no operation took place on this side during the time of the siege. The western slope alone was the theatre of the different combats. Its declivities are not inaccessible, especially between the village of Loulié and the hamlet of Leguillat, but they are sufficiently abrupt to make the Latin author say: Quo, defendente nullo, tamen armatis ascendere esset difficile. At the very foot of this declivity, and at 200 mètres beneath the culminating point of the plateau, the Tourmente flows, a little river ten mètres broad, embanked between this declivity and that of the opposite heights: Flumen infimam vallem dividebat, &c. Such a disposition of the localities, as well as the slight descent of the Tourmente (one mètre in 1,000), rendered it impossible to turn off that river. (Hoc flumem averti loci natura prohibebat, &c.)