This hard-fought action concluded the services of the North Midland Division in this portion of the front. It had been in the line for ten weeks, and under constant fire for the greater part of that time. The strength of the battalions had been so reduced by constant losses, that none of them could muster more than 300 men. Upon July 2 the Forty-sixth Division handed over their line to the Second Canadians and retired for a well-earned rest. Save for two very fruitful raids in the Hulluch district in the late autumn, this Division was not engaged again in 1917. {121} The Germans had strengthened the defence of Lens by flooding the flats to the south of the town, submerging the Cité St. Augustin, so that the Fourth Canadians on the right of the Forty-sixth Division could not push northwards, but they had advanced with steady perseverance along the south bank of the Souchez, and got forward, first to La Coulotte and then as far as the village of Avion, which was occupied by them upon June 28--a date which marked a general move forward on a front of 2000 yards from the river to Oppy. Meanwhile, the Sixth Division had also pushed in upon the north and north-west of Lens, which was closely invested. The First Canadian Division relieved the Sixth Division early in July, so that now the pressure upon Lens was carried out by three Canadian Divisions, one to the north, one to the west, and one to the south of the town. No actual attack was made until the middle of August, but for the sake of continuity of narrative we may reach forward and give some short account of the operations upon that occasion. After constant pressure, and the drifting of a good deal of gas over the huge house-covered area which faced them, the Canadians made an attack upon August 15, which brought them into the very suburbs of the town, while advancing their line both to the north and to the south of it. Two Canadian divisions, the First upon the left and the Second upon the right, made the main attack, while the Fourth Division guaranteed their southern flank. The First Division found itself in what was practically the old British line, as it was defined at the end of the Battle of Loos in September 1915, nearly two years before. This veteran division had not far to go to find its enemy, for the German {122} trenches were not more than 120 yards away. Flooding over them after a heavy discharge of flaming oil drums, the Canadians swept with little loss up that deadly slope of Hill 70, sacred to the memory of the Scots of the Fifteenth Division and of many other brave men who found their last rest upon it. The 3rd Brigade upon the left and the 2nd upon the right topped the low hill and charged roaring down into the Cité St. Auguste beyond. There was a fierce fight at Cinnebar Trench and the other points which made up the German second line. The enemy infantry stood up stoutly to the push of bayonet,