The progress made by the enemy, however, across the northern end of the Bonavis Ridge and up the deep gully between Villers-Guislain and Gonnelieu, known as 22 Ravine, turned our positions on the ridge as well as in both villages. Taking in flank and rear, the defenses of Villers-Guislain, Gonnelieu, and Bonavis were rapidly overrun. Gouzeaucourt was captured about 9 A. M., the outer defenses of La Vacquerie were reached, and a number of guns which had been brought up close to the line in order to enable them to cover the battle front about Masnières and Marcoing fell into the hands of the enemy. At this point the enemy's advance was checked by the action of our local reserves, and meanwhile measures had been taken with all possible speed to bring up additional troops. About midday the Guards came into action west of Gouzeaucourt, while cavalry moved up to close the gap on their right and made progress toward Villers-Guislain from the south and southwest. The attack of the Guards, which was delivered with the greatest gallantry and resolution, drove the enemy out of Gouzeaucourt and made progress on the high ground known as the St. Quentin Ridge, east of the village. In this operation the Guards were materially assisted by the gallant action of a party of the 29th Division, who, with a company of North Midland Royal Engineers, held on throughout the day to a position in an old trench near Gouzeaucourt. Valuable work was also done by a brigade of field artillery of the 47th Division, which moved direct into action from the line of march. During the afternoon three battalions of tanks which, when they received news of the attack, were preparing to move away from the battlefield to refit, arrived at Gouzeaucourt and aided the infantry to hold the recaptured ground. Great credit is due to the officers and men of the tank brigade concerned for the speed with which they brought their tanks into action. Meanwhile, the defense of La Vacquerie had been successfully maintained, and our line had been established to the north of that village, in touch with our troops in Masnières. The Northern Attack 11. In the northern area, from Fontaine-notre-Dame to Tadpole Copse, the German attack was not launched until some two hours later. This was the enemy's main attack, and was carried out with large forces and great resolution. After a heavy preliminary bombardment, and covered by an artillery barrage, the enemy's infantry advanced shortly after 9 A. M. in dense waves, in the manner of his attacks in the first battle of Ypres. In the course of the morning and afternoon no less than five principal attacks were made in this area, and on one portion of the attack as many as eleven waves of German infantry advanced successively to the assault. On the whole of this front a resolute endeavor was made to break down by sheer weight of numbers the defense of the London Territorials and other English battalions holding the sector.