text:  The Turks meanwhile with their usual stubborn perseverance continued to push their sap under the ravelin of Mocenigo and the Panigra bastion which it covered; and though their progress was retarded and their works often ruined by the sallies of the defenders the foundations were at length shaken and the ramparts rent and shattered by the explosion of innumerable mines; and the janissaries fired with fanatic zeal and stimulated by promises of reward rushed again and again to the attack under the eye of the vizir