History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
Meanwhile a battalion of the Corinthians, having gone to the relief of their left wing, broke the right of the Athenians, and pursued them to the sea; but the Athenians and Carystians from the ships drove them back again.
The rest of the army on both sides was fighting without cessation, especially the right wing of the Corinthians, in which Lycophron was opposed to the left of the Athenians, and acting on the defensive; for they expected them to try for the village of Solygia.
For a long time then they held out without yielding to each other; but afterwards (the Athenians having a serviceable force on their side in their cavalry, while the others had no horse) the Corinthians turned and retired to the hill, where they piled their arms, and did not come down again, but remained quiet.
It was in this rout of the right wing that the greater part of them fell, and Lycophron their general. The rest of the army, whose flight, when it was broken, was effected in this manner—with neither hot pursuit nor hurry—withdrew to the higher ground, and there took up its position.
The Athenians, finding that they no longer advanced to engage them, spoiled the dead, and took up their own, and immediately erected a trophy.
But to that half of the Corinthians which had been posted at Cenchreae for protection, lest the enemy should sail against Crommyon, the battle was not visible, owing to [an intervening ridge of] Mount Oneum; but when they saw dust, and were aware of it, they immediately went to the scene of action; as also did the older Corinthians from the city, when they found what had been done.