From these positions south-east of Roisin both brigades during the 6th engaged enemy machine guns which were holding up the advance. [Illustration: THE FINAL ADVANCE, Nov^r. 1918. Sketch D.] This was another day of pouring rain, and the ammunition supply was critical. The enemy, who was apparently using up his ammunition, shelled the whole area. D/91 Battery lost twelve horses during a very heavy bombardment of the 91st Brigade horse lines at Bry. After a further retirement by the enemy during the night, the infantry advanced at 6 A.M. on the 7th behind an artillery barrage, drove in the German rearguard, occupied the high ground east of the Hagneau river, and finally pushed on to the north of Bavai. Both artillery brigades of the 20th Division moved at mid-day to the neighbourhood of Breaugies, about a mile north-east of St Waast. The 91st Brigade had difficulty at St Waast, as the bridge broke down, leaving C/91 and D/91 Batteries stranded there for three hours. Divisional Artillery Headquarters moved to Bettrechies, but having been shelled out, went a mile back to La Flamengrie. During the night the enemy shelling was again heavy; Lieut. Vincent, C/91 Battery, and a driver were killed, and several dumps of ammunition were blown up. As the 19th Division had advanced more rapidly than the 11th Division on its left, the left flank of the 19th had become uncovered. Owing, however, to the situation on other parts of the front, the 19th Division was ordered to push on at all costs regardless of the exposed left flank. On the 8th the 91st Field Artillery Brigade moved to positions of readiness north-east of Bavai, an advance of about twenty-eight miles from Cambrai; the 92nd went to Houdain, north of Bavai, to guard the left flank. Divisional Artillery Headquarters moved up to Breaugies, and later to a point about a mile east of Bavai. On the 9th both brigades advanced a further five miles to the north and north-east of Feignies. The 20th Division meanwhile had been moving up behind the leading troops. Starting from Cambrai on the 3rd of November, the Division spent three days in the Avesnes area and two days round Vendegies. On the 8th, Divisional Headquarters was at Wargnies le Grand, with the brigades at Jenlain, Bry and Wargnies le Petit; on the 9th, Divisional Headquarters moved to Bavai. Owing to the amount of traffic on the road, battalions frequently advanced across country. Heavy rain fell during the week, making the march a very trying one. The billets occupied by the troops, having been lately in the possession of the Germans, were filthy, and a great deal of time had to be spent in cleaning them up.