The siege had lasted for forty-eight days, and the losses on both sides had been very great. The lowest estimate of the Turkish dead and wounded was 8000. Schulenburg put down his own casualties at 1500. Moreover the Turks had left their artillery behind them, and in their own hurried re-embarkation some 900 were drowned. The Venetian fleet, under Pisani, whose indolence was in striking contrast to the energy of Schulenburg, did not succeed in overtaking the foe; but Schulenburg retook Butrinto, to which he attached much importance, and personally superintended the re-fortification of Santa Maura, which another Latin inscription still commemorates. The extraordinary honours paid to him were the measure of Corfù’s value to the Republic. In his favour, as in that of Morosini, an exception was made to the rule forbidding the erection of a statue to a living person. Before the Old Fortress, which he so gallantly defended, there still stands his image. Medals were struck in his honour, and foreign sovereigns wrote to congratulate him. Nor did his services to the Ionians end here. The fear of a fresh attack brought him to Corfù again in the following year. From thence he made a successful attack upon Vonitza and Prevesa, and those places, together with Butrinto, Cerigo, and the islet of Cerigotto, or Antikythera, were finally confirmed to the Republic at the peace of Passarovitz. After the peace he drew up a systematic plan for the defence of the islands, which considerations of expense prevented the Republic from carrying out as fully as he wished. One restoration was imperative—that of the citadel of Corfù, which was blown up by a flash of lightning striking the powder magazine only two years after the great siege. Pisani and 1500 men lost their lives in this accident; several vessels were sunk and much damage done. Under Schulenburg’s directions these works were repaired. At the same time, warned by the experience of the late siege, he strongly fortified Mounts Abraham and San Salvatore and connected them with subterranean passages[272]. To pay for these improvements a tax of one-tenth was imposed upon the wine and oil of the island[273]. Large sums were also spent in the next few years upon the defences of Zante, Santa Maura, and the four continental dependencies of the islands. But the Republic, having lost much of her Levant trade, could no longer keep them up, and Corfù was again damaged by a second explosion in 1789. About the middle of the eighteenth century there was a huge deficit in the Ionian accounts, and the islands became a burden to the declining strength of the Venetian commonwealth. On Corfù in particular she spent twice what she got out of it.