History of the Peloponnesian War

Withal, upon the accusation of Pisander against Phrynichus, they discharged both Phrynichus and Scironides, his fellow-commissioner, of their command, and made Diomedon and Leon generals of the fleet in their places. Now the cause why Pisander accused Phrynichus and said he had betrayed Iasus and Amorges was only this: he thought him a man unfit for the business now in hand with Alcibiades.

Pisander, after he had gone about to all those combinations (which were in the city before for obtaining of places of judicature and of command), exhorting them to stand together and advise about deposing the democracy, and when he had dispatched the rest of his business so as there should be no more cause for him to stay there, took sea with those other ten to go to Tissaphernes.

Leon and Diomedon, arriving the same winter at the Athenian fleet, made a voyage against Rhodes, and finding there the Peloponnesian galleys drawn up to land, disbarked and overcame in battle such of the Rhodians as made head, and then put to sea again and went to Chalce. After this they made sharper war upon them from Cos. For from thence they could better observe the Peloponnesian navy when it should put off from the land.