South of the Somme from Ablaincourt to Chaulnes Wood, a distance of two and a half miles, the Germans pounded the French positions almost unceasingly for forty-eight hours. At 6 o'clock in the morning of November 15, 1916, the Germans after a final shower of tear shells endeavored to drive in their wedge. The main efforts of the attacking contingent were concentrated on Ablaincourt and Pressoir. The French were quite prepared for the onslaught and the oncoming waves of German troops wavered and broke under the fiery storm of French shells. Despite their heavy losses the Germans after repeated failures succeeded about noonday in rushing the eastern portion of Pressoir. Renewing the attack after a short interval, other portions of the place were occupied by them. During the night, the small force of French troops which had held the village all day against overwhelming odds was reenforced, and in the early hours of November 16, 1916, by a brilliant counterattack the Germans were swept out of the village and the French line was once more solidified. The Germans during two days' fighting had displayed conspicuous courage, but the twelve attacks they made on Pressoir, where they gained a temporary advantage, cost them heavily. Certain regiments, among others the One Hundred and Eleventh Prussian, lost 60 per cent. of their effectives. On November 15 and 16, 1916, the British continued to make gains north of the Ancre. One division advanced a mile, and took over 1,000 prisoners at a cost of about 450 casualties. On November 16, 1916, Sir Douglas Haig reported that in twenty-four hours the British had taken six German officers and 297 of other ranks. In the afternoon of this date the Germans launched a vigorous counterattack, and forced the British to relinquish a part of the ground east of the Butte de Warlencourt, which had been won on November 14, 1916. During the week the British aeroplanes were constantly active and some important successes were won over enemy aircraft. On November 16, 1916, two junctions on the German lines of communication were bombed, and railways and aerodromes were attacked with bombs and machine-gun fire by day and night. German aircraft, which had displayed considerable activity at this period, fought a number of aerial engagements with British flyers with disastrous results to themselves. Three German machines were brought down on the British side, and two fell within the German lines. The British also drove down five more in a damaged condition, while their own losses in these air combats amounted to only three machines. According to the British official report 6,190 Germans had been made prisoner during four days' fighting in this sector.