But he knew that they were illusions of the eyes, due to the excited brain behind them.
Harry saw the six batteries of Jackson planted in a long row on the hard ground, and then open with a terrific crash on the defenders of the ridge.

The sound was so tremendous that he was deafened for a few moments.

By the time his hearing was restored fully the batteries fired again and the Northern batteries on the hill replied.

Then the mass of infantry charged and Harry and Dalton on foot, waving their swords and wild with excitement, charged with them.
The plans of Lee and Jackson, working together for the first time in a great battle, went through.

When Lee heard the roar of Jackson's guns on the flank he, too, sent word to his division commanders to charge with their full strength.