X.-Caesar had a double design in this fortification; for he both hoped that the strength of his works, and his [apparent] fears would raise confidence in the barbarians; and when there should be occasion to make a distant excursion to get forage or corn, he saw that his camp would be secured by the works with a very small force. In the meantime there were frequent skirmishes across the marsh, a few on both sides sallying out between the two camps. Sometimes, however, our Gallic or German auxiliaries crossed the marsh, and furiously pursued the enemy; or on the other hand the enemy passed it and beat back our men. Moreover there happened in the course of our daily foraging, what must of necessity happen, when corn is to be collected by a few scattered men out of private houses, that our foragers dispersing in an intricate country were surrounded by the enemy; by which, though we suffered but an inconsiderable loss of cattle and servants, yet it raised foolish hopes in the barbarians; but more especially, because Comius, who I said had gone to get aid from the Germans, returned with some cavalry, and though the Germans were only 500, yet the barbarians were elated by their arrival. XI.-Caesar, observing that the enemy kept for several days within their camp, which was well secured by a morass and its natural situation, and that it could not be assaulted without a dangerous engagement, nor the place enclosed with lines without an addition to his army, wrote to Trebonius to send with all despatch for the thirteenth legion which was in winter-quarters among the Bituriges under Titus Sextius, one of his lieutenants; and then to come to him by forced marches with the three legions. He himself sent the cavalry of the Remi, and Lingones, and other states, from whom he had required a vast number, to guard his foraging parties, and to support them in case of any sudden attack of the enemy.