... on Hilton Head. The former mounting eighteen guns, and the other twenty-two, and big ones, too--ten-inch columbiads and eighty pounders, rifled. We commenced on Fort Beauregard and so round to Fort Walker , keeping under weigh and going round, first one fort and then the other. The ball opened at ten o'clock, and a warm ball it was. It lasted four and three-quarter hours, and I may safely say that fo...