The besiegers' artillery was thus disposed:—

Bombards. Veuglaires,
Spiroles.
Attack on the northern boulevard42
Battery on the slopes of the eastern hills24
Before the tête du pont...4
On the western slopes of the plateau commanding the lower town...2
Park of reserve612
————
Total1224
========

The artillery of the besieged consisted of:—

Bombards. Culverins.
On the platforms of the three great northern towers33
In the casemated batteries of these towers...6
On the earthwork in front of the northern boulevard...2
On the northern boulevard12
On the boulevards B, C, H, I, K55
On the cavalier commanding the bridge12
Reserve in the abbey and the castle48
————
Totals1428
========

On the 10th of September the besiegers began a cavalier in form of a horseshoe, three hundred paces from the boulevard, E, towards the north-east, to rake its gorge at A ([Fig. 53]). This cavalier was armed with two bombards and a spirole. Northwards, on the side of the road, a second cavalier, B, was also provided with two bombards. Next was commenced an earthwork, running obliquely with traverses, to reach from this cavalier in a south-west direction as far as the edge of the plateau near the defenders' intrenchment C, D. The great boulevard, E, of the defence was armed with a bombard and two culverins, and two other culverins flanked the intrenchment C, D. On the morning of the 17th of September, the four bombards of the besiegers sent into the boulevard stone balls two hundred pounds weight, which very much damaged the gorge, and about noon dismounted the bombard and one of the culverins. The besieged had answered their fire as well as they could, both from the boulevard and the two great towers G, H. But it was only the balls of the bombard mounted on the platform of the tower H, that reached the cavalier A. Those of the tower G only rolled as far as the slope of the cavalier B. The governor might have mounted other bombards on the boulevard E; but he was afraid of losing the pieces, and preferred reserving them for the defence at close quarters. On the 18th the besieger had terminated his earthwork as far as the point I, and there he brought up a veuglaire to dismount the flank culverin C. At this point some men were lost on both sides; for the besiegers sent among those engaged in the works large balls of stone and leaden bullets, fired from the bombards of the tower G, and from small cannon.

Fig. 53.

On the 18th of September, at daybreak, the bombards of the cavaliers, A and B, redoubled their fire on the boulevard; then Messire Charles d'Amboise, having massed a body of four hundred men at the point, I, sheltered by gabions and fascines put up during the night; at the word of command this body fell upon the flank, C, which was vigorously defended for an hour. After this the Sire de Montcler, observing that the besiegers were continually sending reinforcements to this point, withdrew his troops into the barbican, K, and the boulevard, E, which enabled the artillerymen posted in the tower, G, to keep up a brisk fire from their bombard and their small cannon upon the assailants.

From the boulevard, E, the besieged, in spite of the projectiles they received in their rear, sheltering themselves as best they could, discharged volleys of stones with their culverins on the point occupied by the enemy. The latter sought to avoid them by descending a short distance below the ridge of the plateau; but they were none the less exposed there to the fire from the tower, G. They brought up gabions and fascines, and endeavoured to gain a footing on this flank, not without some loss, when about three o'clock in the afternoon another attack was contrived against the flank, D. Passing round the end of the intrenchment, and hastening with all speed along the slopes, the enemy attempted to take the defenders in the rear. This attack was unsuccessful. Those who served the bombards and culverins of the tower, H, seized the right moment for discharging volleys against this column of assailants, which made deep lanes in the battalions. These, moreover, who were retired within the barbican, precipitated down the slopes those of the enemy who had already passed beyond the intrenchment; and the struggle ceased towards evening, the besieger occupying the point C alone, without being able to advance. He was endeavouring to find shelter there, both against the projectiles and against any attack in retaliation. The citizens had lost only a few men and a culverin. The enemy reckoned one hundred and fifty dead, and a large number of wounded.