if the soldier was not available for fighting, he had at least to work in the trenches and to march.  During the first summer the general avoided any conflict with the Numantines; he contented himself with destroying the stores in the surrounding country, and with chastising the Vaccaei who sold corn to the Numantines, and compelling them to acknowledge the supremacy of Rome.  It was only towards winter that Scipio drew together his army round Numantia.  Besides the Numidian contingent of horsemen, infantry, and twelve elephants led by the prince Jugurtha, and the numerous Spanish contingents, there were four legions, in all a force of 60,000 men investing a city whose citizens capable of bearing arms did not exceed 8000 at the most.  Nevertheless the besieged frequently offered battle; but Scipio, perceiving clearly that the disorganization of many years was not to be repaired all at once, refused to accept it, and, when conflicts did occur in connection with the sallies of the besieged, the cowardly flight of the legionaries, checked with difficulty by the appearance of the general in person, justified such tactics only too forcibly.  Never did a general treat his soldiers more contemptuously than Scipio treated the Numantine army; and he showed his opinion of it not only by bitter speeches, but above all by his course of action.  For the first time the Romans waged war by means of mattock and spade, where it depended on themselves alone whether they should use the sword.  Around the whole circuit of the city wall, which was nearly three miles in length, there was constructed a double line of circumvallation of twice that extent, provided with walls, towers, and ditches; and the river Douro, by which at first some supplies had reached the besieged through the efforts of bold boatmen and divers, was at length closed.  Thus the town, which they did not venture to assault, could not well fail to be reduced through famine; the more so, as it had not been possible for the citizens to lay in provisions during the last summer.  The Numantines soon suffered from want of everything.  One of their boldest men, Retogenes, cut his way with a few companions through the lines of the enemy, and his touching entreaty that kinsmen should not be allowed to perish without help produced a great effect in Lutia at least, one of the towns of the Arevacae.  But before the citizens of Lutia had come to a decision, Scipio, having received information from the partisans of Rome in the town, appeared with a superior force before its walls, and compelled the authorities to deliver up to him the leaders of the movement, 400 of the flower of the youth, whose hands were all cut off by order of the Roman general.  The Numantines, thus deprived of their last hope, sent to Scipio to negotiate as to their submission and called on the brave man to spare the brave; but when the envoys on their return announced that Scipio required unconditional surrender, they were torn in