IX.--The ambassadors said that they would report these things to their countrymen; and, after having deliberated on the matter, would return to Caesar after the third day, they begged that he would not in the meantime advance his camp nearer to them. Caesar said that he could not grant them even that; for he had learned that they had sent a great part of their cavalry over the Meuse to the Ambivariti, some days before, for the purpose of plundering and procuring forage. He supposed that they were then waiting for these horse, and that the delay was caused on this account. X.--The Meuse rises from mount Le Vosge, which is in the territories of the Lingones; and, having received a branch of the Rhine, which is called the Waal, forms the island of the Batavi, and not more than eighty miles from it it falls into the ocean. But the Rhine takes its course among the Lepontii, who inhabit the Alps, and is carried with a rapid current for a long distance through the territories of the Sarunates, Helvetii, Sequani, Mediomatrici, Tribuci, and Treviri, and when it approaches the ocean, divides into several branches; and, having formed many and extensive islands, a great part of which are inhabited by savage and barbarous nations (of whom there are some who are supposed to live on fish and the eggs of sea-fowl), flows into the ocean by several mouths. XI.--When Caesar was not more than twelve miles distant from the enemy, the ambassadors return to him, as had been arranged; who meeting him on the march, earnestly entreated him not to advance any farther. When they could not obtain this, they begged him to send on a despatch to those who had marched in advance of the main army, and forbid them to engage; and grant them permission to send ambassadors to the Ubii, and if the princes and senate of the latter would give them security by oath, they assured Caesar that they would accept such conditions as might be proposed by him; and requested that he would give them the space of three days for negotiating these affairs. Caesar thought that these things tended to the self-same point [as their other proposal]; [namely] that, in consequence of a delay of three days intervening, their horse which were at a distance might return; however, he said, that he would not that day advance farther than four miles for the purpose of procuring water; he ordered that they should assemble at that place in as large a number as possible the following day, that he might inquire into their demands. In the meantime he sends messengers to the officers who had marched in advance with all the cavalry to order them not to provoke the enemy to an engagement, and if they themselves were assailed, to sustain the attack until he came up with the army.