The next day, May 11, 1915, was started by the Germans hurling hundreds of incendiary shells into the already ruined town of Ypres. They also fired almost countless high-explosive shells into the British trenches. The British big guns replied with considerable effect. One of the German cannon was rendered useless by the fire of the Thirty-first Heavy Battery, and several howitzers were damaged by the North Midland Heavy Battery. The German cannonade was especially effective near the Ypres-St. Julien road. The Teutons, however, did not confine their work to the artillery, for they made three assaults on the British trenches south of the Menin road. This part of the line was held by Scottish regiments, who, though they were forced out of their trenches, regained them with the aid of other Scots who were supporting them. By now it was apparent to the British commanding officers that they must still further lessen the projection of their salient. So on May 12, 1915, the Twenty-eighth Division was sent to the reserve. It had experienced continuous fighting since April 22, 1915, and had suffered severe losses. It had only one lieutenant colonel. Captains were in command of most of its battalions. The First and Third Cavalry Divisions took its place. They were under the command of General De Lisle. From left to right the new line was held as follows: The men of the Twelfth Brigade, the Eleventh Brigade, and a battalion of the Tenth Brigade of the Fourth Division guarded the new front to a point northeast of Verlorenhoek. Next came the First Cavalry which held the line to the Roulers railroad. From the railroad to Bellewaarde Lake the Third Division held the line. From the lake to Hill 60 the Twenty-seventh Division had its position. The British admitted that this new position was not strong, because it lacked natural advantages, and the trenches were more or less of hasty construction.