Three forts, one of considerable size and two subsidiary, were erected on the seaboard of Cape Plemmyrium, which became the station for triremes as well as for ships of burden. Though the situation was found convenient for all naval operations, it entailed also serious disadvantages; being destitute of any spring of water, such as the memorable fountain of Arethusa on the opposite island of Ortygia. So that for supplies of water, and of wood also, the crews of the ships had to range a considerable distance, exposed to surprise from the numerous Syracusan cavalry placed in garrison at the temple of Zeus Olympius. Day after day, losses were sustained in this manner, besides the increased facilities given for desertion, which soon fatally diminished the efficiency of each ship’s crew. As the Athenian hopes of success now declined, both the slaves and the numerous foreigners who served in their navy became disposed to steal away. And though the ships of war, down to this time, had been scarcely at all engaged in actual warfare, yet they had been for many months continually at sea and on the watch, without any opportunity of hauling ashore to refit. Hence the naval force, now about to be called into action as the chief hope of the Athenians, was found lamentably degenerated from that ostentatious perfection in which it had set sail fifteen months before, from the harbor of Peiræus. The erection of the new forts at Plemmyrium, while by withdrawing the Athenian forces it left Gylippus unopposed in the prosecution of his counter-wall, at the same time emboldened him by the manifest decline of hope which it implied. Day after day he brought out his Syracusans in battle-array, planting them near the Athenian lines; but the Athenians showed no disposition to attack. At length he took advantage of what he thought a favorable opportunity to make the attack himself; but the ground was so hemmed in by various walls—the Athenian fortified lines on one side, the Syracusan front or Temenitic fortification on another, and the counter-wall now in course of construction on a third—that his cavalry and darters had no space to act. Accordingly, the Syracusan hoplites, having to fight without these auxiliaries, were beaten and driven back with loss, the Corinthian Goggylus being among the slain.[398] On the next day, Gylippus had the prudence to take the blame of this defeat upon himself. It was all owing to his mistake, he publicly confessed, in having made choice of a confined space wherein neither cavalry nor darters could avail. He would presently give them another opportunity, in a fairer field, and he exhorted them to show their inbred superiority, as Dorians and Peloponnesians, by chasing these Ionians with their rabble of islanders out of Sicily. Accordingly, after no long time, he again brought them up in order of battle; taking care, however, to keep in the open space, beyond the extremity of the walls and fortifications.