sent envoys promising allegiance to the invincible invader, and sundry independent tribes followed the example of these princes.
Alexander, moving in a direction more easterly than before, crossed the Akesines (Chinab) at a point not specified, but certainly near the foot of the hills. The passage of the river, although unopposed, was difficult by reason of the rapid current of the flooded stream, which was three thousand yards (15 stadia) in width, and of the large and jagged rocks with which the channel was bestrewn, and on which many of the boats were wrecked.
The king, having made adequate arrangements for supplies, reinforcements, and the maintenance of communications, continued his advance eastwards, probably passing close to the ancient fortress of Sialkot. The Hydraotes (Ravi) River was crossed without difficulty and Hephaistion was sent back in order to reduce to obedience the younger Poros, who had revolted owing to feelings of resentment at the excessive favour shown to his uncle and enemy.
Alexander selected as the adversaries worthy of his steel the more important confederacy of independent tribes which was headed by the Kathaioi, who dwelt upon the left or eastern side of the Hydraotes, and enjoyed the highest reputation for skill in the art of war. Their neighbours, the Oxydrakai, who occupied the basin of the Hyphasis, and the Malloi, who were settled along the lower course of the Hydraotes below Lahore and were also famous as brave warriors,
