At this time arrived envoys from the Mallians who still survived, offering the submission of the nation; also from the Oxydracians came both the leaders of the cities and the governors of the provinces, accompanied by the other 150 most notable men, with full powers to make a treaty, bringing the gifts which are considered most valuable among the Indians, and also, like the Mallians, offering the submission of their nation. They said that their error in not having sent an embassy to him before was pardonable, because they excelled other races in the desire to be free and independent, and their freedom had been secure from the time Dionysus came into India until Alexander came; but if it seemed good to him, inasmuch as there was a general report that he also was sprung from gods, they were willing to receive whatever viceroy he might appoint, pay the tribute decreed by him, and give him as many hostages as he might demand. He therefore demanded the thousand best men of the nation, whom he might hold as hostages, if he pleased; and if not, that he might keep them as soldiers in his army, until he had finished the war which he was waging against the other Indians. They accordingly selected the thousand best and tallest men of their number, and sent them to him, together with 500 chariots and charioteers, though these were not demanded. Alexander appointed Philip viceroy over these people and the Mallians who were still surviving. He sent back the hostages to them, but retained the chariots. When he had satisfactorily arranged these matters, since many vessels had been built during the delay arising from his being wounded,[759] he embarked 1,700 of the cavalry Companions, as many of the light-armed troops as before, and 10,000 infantry, and sailed a short distance down the river Hydraotes. But when that river mingled its waters with the Acesines, the latter giving its name to the united stream, he continued his voyage down the Acesines, until he reached its junction with the Indus. For these four large rivers,[760] which are all navigable, discharge their water into the river Indus, though each does not retain its distinct name. For the Hydaspes discharges itself into the Acesines, and after the junction the whole stream forms what is called the Acesines. Again this same river unites with the Hydraotes, and after absorbing this river, still retains its own name. After this the Acesines takes in the Hyphasis, and finally flows into the Indus under its own name; but after the junction it yields its name to the Indus. From this point I have no doubt that the Indus proceeds 100 stades,[761] and perhaps more, before it is divided so as to form the Delta; and there it spreads out more like a lake than a river. CHAPTER XV. VOYAGE DOWN THE INDUS TO THE LAND OF MUSICANUS.