CASE.—Private Francis Donohue, Co. B, 83d Pennsylvania Volunteers, aged 19 years, was wounded at the South Side Railroad, Virginia, March 31st, 1865, by a conoidal projectile which penetrated the frontal bone one inch above the right frontal eminence. He was sent to the hospital of the 1st division, Fifth Corps, and thence was conveyed to Washington and admitted to the Lincoln Hospital on April 4th. On the 13th, the patient being in a comatose condition, Acting Assistant Surgeon John Morris extracted a large portion of the frontal bone and removed the ball. There was extensive laceration of the integument and considerable comminution of bone. Considerable brain substance escaped through the opening in the cranium. Expectant treatment was resorted to, in spite of which the patient sank rapidly and died April 16th, 1865. A post-mortem examination revealed a large abscess in the anterior lobe of the right hemisphere. The case is reported by Surgeon J. C. McKee, U. S. A.