BATTLE OF SPOTTSYLVANIA—HANCOCK'S POSITION—ASSAULT OF WARREN'S AND WRIGHT'S CORPS—UPTON PROMOTED ON THE FIELD—GOOD NEWS FROM BUTLER AND SHERIDAN.HANCOCK'S ASSAULT—LOSSES OF THE CONFEDERATES—PROMOTIONS RECOMMENDED—DISCOMFITURE OF THE ENEMY—EWELL'S ATTACK—REDUCING THE ARTILLERY.CHAPTER LIII.