At 11.40 the 23rd London, which had suffered from the German penetration of its left company, was exposed all along its line to machine-gun fire from its left rear, where the enemy had established three posts. The result was that the position in Aveluy Wood had to be abandoned. The 22nd London from the reserve brigade was now pushed up into the firing-line where the pressure was very great. The weight of the attack was now mainly upon the 20th, who held their posts with grim determination in spite of very heavy losses, chiefly from trench mortars and heavy machine-guns. It was a bitter ordeal, but the enemy was never able to get nearer than 300 yards to the line of the 20th, and if they caused heavy losses they endured as much from the British fire. About 12.40 the enemy seemed to be mustering at the south end of the wood for a grand final attack, but the gathering was dispersed by the machine-guns of the Londoners. At four in the afternoon, after a truly terrible day, the Forty-seventh Division determined to counter-attack, {209} and the 22nd Battalion was used for this purpose. They had already endured heavy losses and had not sufficient weight for the purpose, though eight officers and many men had fallen before they were forced to recognise their own inability. The failure of this attack led to a further contraction of the line of defence. The Sixty-third Division on the left had endured a similar day of hard hammering, and it was now very exhausted and holding its line with difficulty. For a time there was a dangerous gap, but the exhausted Germans did not exploit their success, and reserves were hurried up from the Marines on the one side and from the 142nd Brigade on the other to fill the vacant position. When night fell after this day of incessant and desperate fighting the line was unbroken, but it had receded in the area of Aveluy Wood and was bent and twisted along the whole front. General Gorringe, with true British tenacity, determined that it should be re-established next morning if his reserves could possibly do it. Only one battalion, however, was available, the pioneer 4th Welsh Fusiliers, who had already done conspicuous service more than once during the retreat. An official document referring to this attack states that "no troops could have deployed better or advanced more steadily under such intense fire, and the leadership of the officers could not have been excelled." The casualties, however, were so heavy from the blasts of machine-gun fire that the front of the advance was continually blown away and no progress could be made. Two platoons upon the left made some permanent gain of ground, but as a whole this very gallant counter-attack was unavailing. {210}