In order to counteract the effect of these defeats, which had depressed the courage of the Ottomans and raised the spirits of the Greeks, the Sultan resolved to adopt measures for placing his fleet in security, and facilitating the communication between the army before Constantinople and the naval camp on the Bosporus. The Venetians had recently transported a number of their galleys from the river Adige overland to the lake of Garda. This exploit, which had been loudly celebrated at the time, suggested to the Sultan the idea of transporting a number of vessels from the Bosporus into the port of Constantinople, where the smooth water and the command of the shore would secure to his ships the mastery of the upper half of that extensive harbor. The distance over which it was necessary to transport the galleys was only five miles, but a steep hill presented a formidable obstacle to the undertaking. Mahomet, nevertheless, having witnessed the transport of his monster cannon over rivers and hills, was persuaded that his engineers would find no difficulty in moving his ships overland. A road was accordingly made, and laid with strong planks and wooden rails, which were plastered over with tallow. It extended from the station occupied by the fleet at Dolma Baktshe to the summit of the ridge near the Cemetery of Pera. On this inclined plane, with the assistance of windlasses and numerous yokes of oxen, the vessels were hauled up one after the other to the summit of the hill, from whence they descended with difficulty to the point beyond the present arsenal, where they were launched into the port under the protection of batteries prepared for their defence. Historians, wishing to give a dramatic character to their pages, have attributed marvellous difficulties to this daring exploit. It was a well-conceived and well-executed undertaking, for a division of the Ottoman fleet was conveyed into the port in a single night, where the Greeks, at the dawn of day, were amazed at beholding the hostile ships safe under the protection of inexpugnable batteries.