The right kidney weighed six ounces, the left kidney seven. Just beneath the capsule of the left kidney, at about the middle of its convex border, there was a little abscess one-third of an inch in diameter. There were three small serous cysts on the convex border of the right kidney, just beneath its capsule. In other respects the tissue of both kidneys was normal in appearance and in texture. The urinary bladder was empty. Behind the right kidney, after the removal of that organ from the body, the dilated track of the bullet was discovered. It was found that, from the point at which it had fractured the right eleventh rib, three inches and a half to the right of the vertebral spines, the missile had gone to the left obliquely forward, passing through the body of the first lumbar vertebra, and lodging in the adipose collective tissue, immediately below the lower border of the pancreas, about two inches and a half to the left of the spinal column, and behind the peritoneum. It had become completely encysted. The track of the bullet between the point at which it had fractured the eleventh rib and that at which it entered the first lumbar vertebra was considerably dilated, and the pus had burrowed downward through the adipose tissue behind the right kidney, and thence had found its way between the peritoneum and the right iliac fossa, making a descending channel, which extended almost to the groin. The adipose tissue behind the kidney, in the vicinity of the descending channel, was much thickened and condensed by inflammation. In the channel, which was found almost free from pus, lay the flexible catheter introduced into the wound at the commencement of the autopsy. Its extremity was found doubled upon itself immediately beneath the peritoneum, reposing upon the iliac fossa, where the channel was dilated into a pouch of considerable size. This long descending channel, now clearly seen to have been caused by the burrowing of pus from the wound, was supposed, during life, to have been the track of the bullet. The last dorsal, together with the first and second lumbar vertebra and the twelfth rib, were then removed from the body for more thorough examination. When this examination was made, it was found that the bullet had penetrated the first lumbar vertebra in the upper part of the right side of the body. The aperture by which it entered the intervertebral cartilage next above, was situated just below and anterior to the intervertebral foramen, from which the upper margin was about one-quarter of an inch distant. Passing obliquely to the left, and forward through the upper part of the body of the first lumbar vertebra, the bullet emerged by the aperture, the centre of which was about half an inch to the left of the median line, and which also involved the intervertebral cartilage next above. The cancellated tissue of the body of the first lumbar vertebra was very much comminuted, and the fragments somewhat displaced. Several