No one appreciated better the triumphs of the Beglerbeg of Algiers than Sultan Suleymān. The Ottomans, as yet inexperienced in naval affairs, were eager to take lessons. The Turkish navy had been of slow growth, chiefly because in early days there were always people ready to act as sailors for pay. When Murād I. wished to cross from Asia to Europe to meet the invading army of Vladislaus and Hunyady, the Genoese skippers were happy to carry over his men for a ducat a head, just to spite their immemorial foes the Venetians, who were enlisted on the other side. It was not till the fall of Constantinople gave the Turks the command of the Bosphorus that Mohammed II. resolved to create for himself a naval power. That fatal jealousy between the Christian States which so often aided the progress of the Turks helped them now. The great commercial republics, Genoa and Venice, had long been struggling for supremacy on the sea. Venice held many important posts among the islands of the Archipelago and on the Syrian coast, where the Crusaders had rewarded her naval assistance with the gift of the fortress of Acre. Genoa was stronger in the Black Sea and Marmora, where, until the coming of the Turks, her colony at Galata was little less than an Oriental Genoa. The Genoese tower is still seen on the steep slope of Pera, and Genoese forts are common objects in the Bosphorus, and in the Crimea, where they dominate the little harbour of Balaklava. The Sea of Marmora was the scene of many a deadly contest between the rival fleets. In 1352, under the walls of Constantinople, the Genoese defeated the combined squadrons of the Venetians, the Catalonians, and the Greeks. But next year the Bride of the Sea humbled the pride of Genoa in a disastrous engagement off Alghero; and in 1380, when the Genoese had gained possession of Chioggia and all but occupied Venice itself, the citizens rose like one man to meet the desperate emergency, and not only repulsed, but surrounded the invaders, and forced them to capitulate. From this time Genoa declined in power, while Venice waxed stronger and more haughty. The conquest of Constantinople by the Turks, followed rapidly by the expulsion of the Genoese from Trebizond, Sinope, Kaffa, and Azov, was the end of the commercial prosperity of the Ligurian Republic in the East. The Black Sea and Marmora were now Turkish lakes. The Castles of the Dardanelles, mounted with heavy guns, protected any Ottoman fleet from pursuit; and though Giacomo Veniero defiantly carried his own ship under fire through the strait and back again with the loss of only eleven men, no one cared to follow his example. [Illustration: AN ADMIRAL'S GALLEY (_Furttenbach, Architectura Navalis, 1629._)]