It appears, however, that the chemical works were not captured behind the barrage, which had failed to subdue the resistance, as had been anticipated, but were taken by the action of a tank. This tank was a "male," armed with two 6-pounder guns, and was commanded by a sergeant. It arrived on the scene at a time when the attack was held up in front of the Black line, and units had become badly confused. It moved forward to the Black line, and annihilated the enemy in it with point-blank fire from its 6-pounders. It then worked along a communication trench towards the chemical works, strongly held by the enemy, and destroyed its entire garrison. The tank then advanced through the chemical works, turned up the main road, and round the north-east corner of the village. It next continued along the eastern outskirts of the chemical works, dealing with all the parties of the enemy it encountered. A machine-gun which still survived amongst the ruins of the chemical works, and which was causing casualties to the advancing troops, was pointed out to the tank. It accordingly engaged the machine-gun, and destroyed it and its crew. By the aid of this tank a line of shell-holes was occupied by a mixed body of troops, but chiefly 6th Gordon Highlanders, 200 yards east of the chemical works. The tank waited with these men for an hour, and then having little petrol and no ammunition left, withdrew out of action. The gallant handling of this tank by the sergeant in command of it, and his tactical skill, had enabled the chemical works to be taken, in spite of the barrage having been lost. Taking advantage of the disorganisation of the enemy caused by the tank, Lieutenant Still, the only surviving officer of the right company of the 7th Gordon Highlanders, went forward with the remainder of the two companies to the Blue line. He captured fifty wounded Germans in a dressing station on the way forward, two trench-mortars between the Black line and the Roeux-Gavrelle Road, and a machine-gun east of the road. He then proceeded with his party 800 yards east of the Blue line, and almost reached the Brown line. Here he held up with his Lewis guns several attempts to advance made by the enemy. At 9 A.M., having few men left, he withdrew to the vicinity of the Gavrelle Road. For his gallantry, initiative, and skilful handling of his party during these operations, Lieutenant Still was awarded the Military Cross. The position then was that at one time our troops were east of the Roeux-Gavrelle Road almost as far south as the junction with the Fampoux-Plouvain Road, that the enemy was in and about the station buildings, that we held the chemical works, that he held the whole of Roeux village and about one-third of Roeux Wood. During the day the 6th Seaforth Highlanders had been placed at the disposal of the 153rd Brigade, and had moved up into the Black line north of the railway.