...ells have exploded over our trenches, but inflicted no damage. At half-past 6 all our guns at present in position were in full play, from battery Gillmore, the Navy battery, in command of Commander Foxhall A. Parker , to the extreme left battery, doing good service. The gorge wall was repeatedly struck by huge bolts that penetrated two or three feet into the brick wall, and threw out immense piles of bricks, mo...