...ned, to take further part in the contest as a body. At four o'clock we had lost nearly a mile of ground, fifteen of our guns had been captured, and the enemy were in possession of Casey's camp. Couch 's division was now assailed. His troops stood firm, and the repeated assaults of the enemy were steadily met,--our left being protected by the impenetrable morasses of the White Oak Swamp. Two of H...