History of the Peloponnesian War

After making this exhortation Nicias immediately gave orders to man the ships. Gylippus and the Syracusans, on the other hand, observing the actual preparations which they were making, could easily perceive that the Athenians were going to fight at sea;

furthermore, the device of the grappling-irons had already been reported to them, and while they were equipping their ships to meet every other contingency, they also took precautions against this. For they stretched hides over the prows and a considerable portion of the upper works of the ships, in order that when the grapnel was thrown it might slip off and not get hold.

And when all was ready, Gylippus and his generals exhorted their men as follows: