History of the Peloponnesian War

The Boeotians sent off at once for darters and slingers from the Maliac Gulf, and with two thousand Corinthian hoplites, who reinforced them after the battle, as well as the Peloponnesian garrison which had evacuated Nisaea, and some Megarians also, made an expedition against Delium and attacked the fortification. After trying other forms of assault they took it by bringing up an engine made in the following manner.