While this fighting was in progress the surviving tanks were pushing on towards Flesquières Trench; but they, too, came under artillery fire, and were knocked out by direct hits. The personnel of the tanks suffered heavy losses, as in some cases the tanks burst into flames on being struck by a shell, and their crews were burnt to death before help could be brought to them. There is no need to describe the sufferings of the unfortunate men who died in this manner, imprisoned in the flaming tanks. The tanks which still survived shortly became non-effective for the time being owing to shortage of petrol. The crews which survived, however, still continued to assist the infantry after their tanks were out of action. For example, 2nd Lieutenant Blow, after his tank, the Edward II., was struck by a shell, took his Lewis guns from it, placed one in action at the head of a communication trench, and himself fired a Lewis gun from the roof of his tank until the gun became too hot to hold. He then attached himself to the Seaforths for the remainder of the action. The second wave of the 6th Seaforth Highlanders, in spite of a heavy fire directed against them from Flesquières Trench, made repeated attempts to enter it, in which all officers except one per company became casualties. One officer in particular, 2nd Lieutenant Donald Grant, displayed great courage and initiative in his efforts to gain his objective. Leading his platoon along a communication trench, east of Flesquières Wood, he drove the enemy before him, bayoneting many himself. When all his men but one were casualties, he climbed out of his communication trench and attempted to rush Flesquières Trench from above ground. He and his companion were, however, immediately shot dead. The 7th Gordon Highlanders, just as they had done at Beaumont Hamel and again at the chemical works, carried their advance to the farthest point reached in the attack. They made short work of the Hindenburg Support, where they picked up 100 prisoners. On approaching Flesquières Trench their tanks became subjected to close-range field-gun fire, and drew most of the fire of the riflemen and machine-gunners. The infantry were thus able to enter the trench and establish themselves in it after some heavy fighting. On the right at first only one section gained a lodgment in this trench, but a platoon advancing over the area which the section had just traversed followed it into the trench, and then fought its way along it with bombs and rifles until it reached the battalion right boundary. The next waves thus passed on to assault the village, unsupported by tanks, and in the face of a terrific fire. At one period they were able to sweep the main street of the village with Lewis-gun fire; but subjected to machine-gun fire from all sides, they could not maintain their position, and were forced back into Flesquières Trench.