“‘When I opened the skull I found an incision extending clear across the opposite hemisphere, touching the dura mater just above the tentorium. The dura mater was stained, but I could find no mark on the skull. When I made the _post mortem_ I found the arrow-head in the brain. When the patient was hit, he seized the arrow-shaft with both hands and pulled it out, then dropped and remained unconscious until he died, about six hours after.’ “Private John Krumholz, Company H, 22d Infantry, was wounded at Fort Sally, South Dakota, June 3, 1869, by an arrow, which, entering at the outer canthus of the left eye, penetrated the skull two inches, and is supposed to have passed between the skull and the dura mater. The operation for extraction, which was immediately performed, consisted in sawing nearly through the skull with a Hey’s saw, in close proximity to the arrow. Recovery was rapid, the soldier returning to duty later. “Private Snowden, 14th Infantry, was one of a party surprised by Apaches, March 22, 1866, while en route from Maricopa Wells to Fort Goodwin, Arizona. He was struck in the back of the head by an arrow, which penetrated the skull, and nine days later reached Maricopa Wells, weak and fatigued, but unimpaired in intelligence. He believed the arrow-point to be within the cranium, since, in pulling on the shaft after receiving the injury, nothing but the shaft responded. The usual treatment was being given with success, when in examining the scalp there was discovered a small tumefaction over the parietal side of the left occipito-parietal suture. Pressure caused the issue of a small quantity of serous matter from the cicatrix of the arrow-wound. This was enlarged, and a probe passed into it was made to feel along the fissure in the bone, when it struck something metallic. The cranium was laid bare by a crucial incision, and with considerable difficulty a hoop-iron arrow-head one and three fourths inches long and one half inch in breadth was withdrawn from the brain. About a dram of pus followed it. After the operation the right side of the body was observed to be paralyzed. The patient’s condition fluctuated, but the first week in May his improvement had been such as to cause belief in his ultimate recovery. On the 7th he ate something which disagreed with him, and gradually grew worse until the morning of the 13th, when death ensued. The _post mortem_ showed that the brain tissue to the extent of three fourths of an inch around the track of the arrow-point was softened and disorganized.