On the 24th was commenced No. 15 battery on the right attack for three mortars, by a brigade of sappers and 100 men. It was traced on the crest of the Woronzoff ravine among some quarries, by Lieutenant James of the engineers, 50 feet of which offered a natural revetment. The remainder of the trace was marked by a lodgment of fifteen gabions. Good work was performed though the site was rocky, and before daylight the parapet was well risen. Heaps of stones, which were contiguous, were built into it and both epaulments. Vigilant as was the enemy, he did not discover the battery and it proceeded that night without molestation. By the 2nd June it was ready to join issue in the struggle. It was a solid construction; the communication to it, through an indurated soil, was very strong; and situated on the extreme left of the second parallel, it was the only battery which, for a while, watched the road and ravine. It, moreover, fired into the Redan. In numbers 7 and 8 batteries on the left, mantlets of tarred cordage were suspended across the necks of the embrasures to mask them from the enemy. This was, apparently, the first time of their employment in the British batteries. Simple as they were, they fulfilled the object of their use. Each of the mats had a narrow cut at the bottom to allow the gun to run out and also a small opening for the artillerymen to take aim. Where all is rough and dependent in some measure upon experience acquired in hazardous situations, and the quick adaptation of the commonest means to different ends, the application of the rope mantlets was forcibly in keeping with the grim and rugged character of the trenches. One of the hospital caves was in No. 7 battery which had been deepened and widened by the miners’ art into a chamber of approved dimensions. Other huts there were in the trenches in no case exceeding seven feet in height, but the capacity of one or more gave measurements of six by fifteen feet. They were built after the fashion of magazines, but so arranged as to admit more light for the surgeons on duty to carry out those primary remedies which the injuries of the wounded imperatively demanded.