[66] After ten days' incessant labor, the ground was levelled, the ditch filled, the approaches of the besiegers were regularly made, and two hundred and fifty engines of assault exercised their various powers to clear the rampart, to batter the walls, and to sap the foundations.

On the first appearance of a breach, the scaling-ladders were applied: the numbers that defended the vantage ground repulsed and oppressed the adventurous Latins; but they admired the resolution of fifteen knights and sergeants, who had gained the ascent, and maintained their perilous station till they were precipitated or made prisoners by the Imperial guards.

On the side of the harbor the naval attack was more successfully conducted by the Venetians; and that industrious people employed every resource that was known and practiced before the invention of gunpowder.

A double line, three bow-shots in front, was formed by the galleys and ships; and the swift motion of the former was supported by the weight and loftiness of the latter, whose decks, and poops, and turret, were the platforms of military engines, that discharged their shot over the heads of the first line.

The soldiers, who leaped from the galleys on shore, immediately planted and ascended their scaling-ladders, while the large ships, advancing more slowly into the intervals, and lowering a draw-bridge, opened a way through the air from their masts to the rampart.