Thucydides, History of the Peloponnesian War
Benjamin Jowett, Ed.

31. Demosthenes, who after helping to build the fort on the Laconian coast, had sailed away to Corcyra¹, on his way thither destroyed a merchant-vessel anchored at Phea in Elis, which was intended to convey some² of the Corinthian hoplites to Sicily. But the crew escaped, and sailed in another vessel. [2] He went on to Zacynthus and Cephallenia, where he took on board some hoplites, and sent to the Messenians of Naupactus for others; he then passed over to the mainland of Acarnania, and touched at Alyzia and Anactorium³, which were at that time occupied by the Athenians. [3] While he was in those regions he met Eurymedon returning from Sicily, whither he had been sent during the winter in charge of the money which had been voted to the army⁴; [4] he reported, among other things, the capture of Plemmyrium by the Syracusans, of which he had heard on his voyage home. Conon too, the governor of Naupactus, brought word that the twenty-five Corinthian ships⁵ which were stationed on the opposite coast were still showing a hostile front, and clearly meant to fight. He requested the generals to send him reinforcements, since his own ships—eighteen in number—were not able to give battle against the twenty-five of the enemy. [5] Demosthenes and Eurymedon sent ten ships, the swiftest which they had, to the fleet at Naupactus, while they themselves completed the muster of the expedition. Eurymedon, sailing to Corcyra, ordered the Corcyraeans to man fifteen ships, and himself levied a number of hoplites. He had turned back from his homeward voyage, and was now holding the command, to which, in conjunction with Demosthenes, he had been appointed. Demosthenes meanwhile had been collecting slingers and javelin-men in the neighbourhood of Acarnania.