Hitherto the defence had seemed a little passive, but at dawn on the morning of the seventeenth Alvarez delivered the first of the many furious sallies which he made against the siege lines. A battalion of Ultonia rushed suddenly down-hill out of Monjuich and drove the French, who were taken completely by surprise, out of the ruins of Pedret. Aided by a smaller detachment, including the artificers of the _Crusade_, who came out of the Santa Maria gate, they destroyed all the works and lodgements of the besiegers in the suburb, and held it till they were driven out by two French and one Westphalian battalion sent up from Verdier’s reserves. The Spaniards were forced back into the town, but retired in good order, contented to have undone three days of the besiegers’ labour. They had lost 155 men, the French 128, in this sharp skirmish. Two days later the towers of San Luis and San Narciso, which had been reduced to shapeless heaps of stone, were carried by assault, with a loss to the French of only 78 men; but an attempt to carry San Daniel by the same rush was beaten off, this redoubt being still in a tenable state. Its gorge, however, was completely commanded from the ruins of San Luis, and access to or exit from it was rendered so dangerous that Alvarez withdrew its garrison on the next night. The possession of these three outworks brought the French close up to Monjuich, which they could now attack from ground which was favourable in every respect, save that it was bare rock lacking soil. It was impossible to excavate in it, and all advances had to be made by building trenches (if the word is not a misnomer in this case) of sandbags and loose stones on the surface of the ground. The men working at the end of the sap were therefore completely exposed, and the work could only proceed at a great expense of life. Nevertheless the preparations advanced rapidly, and on the night of July 2 an enormous battery of sandbags (called the _Batterie Impériale_) was thrown up at a distance of only four hundred yards from Monjuich. Next morning it opened on the fort with twenty 16- and 24-pounders, and soon established a superiority over the fire of the defence. Several Spanish pieces were dismounted, others had to be removed because it was too deadly to serve them. But a steady fire was returned against the besiegers from the Constable and Calvary forts, on the other side of the Galligan ravine. Nevertheless Monjuich began to crumble, and it looked as if the end of the siege were already approaching. On July 3 there was a breach thirty-five feet broad in the fort’s north-eastern bastion, and the Spanish flag which floated over it was thrown down into the ditch by a chance shot. A young officer named Montorro climbed down, brought it up, and nailed it to a new flagstaff under the fire of twenty guns. Meanwhile long stretches of the parapet of Monjuich were ruined, the ditch was half-filled with débris, and the garrison could only protect