History of the Peloponnesian War

And the Corinthians and their confederates went not as to fight by sea but furnished rather for the land service in Acarnania and never thought that the Athenians with their twenty galleys durst fight with theirs that were sevenand-forty. Nevertheless, when they saw that the Athenians as themselves sailed by one shore kept over against them on the other, and that now when they went off from Patrae in Achaia to go over to Acarnania in the opposite continent, the Athenians came towards them from Chalcis and the river Evenus and also knew that they had come to anchor there the night before, they found they were then to fight of necessity directly against the mouth of the strait.