thickness of the bone. Of four others, from 2 to 3^ in. in length, two are partly dead, and two consist of new bone that had confined the sequestra. The marks of a trephine and cutting instrument are seen.
From a soldier, set. twenty-one years. About a year previously a rifle-ball struck the leg at about the junction of the upper and middle thirds, and glanced down the bone. The wound remained open ; and in the space of about 6 in. there were seven sinuses, with a foetid dis- charge. Did well after the operation. (Hospital, 111, 136.) 1863. Dr. H. J. Bigelow.
1318. Sequestrum, about 2 in. long, and apparently from the femur. 1847. Dr. J. C. Warren.
1319. Sequestrum, 3| in. long, and slender ; from the interior of some long. bone. 1847. Dr. J. C. Warren.
1320. Necrosis of the head of the first metatarsal bone ; prog- ress of disease very rapid. From a healthy lad, seventeen years of age, who inflamed his foot by wearing a pair of new brogans, fron the 6th to the 10th of November. Dec. 14th Dr. B. found swelling, and extensive suppuration, with several fistulas, and easily removed the dead bone. 1857.
Dr. H. J. Bigelow.
1321. A portion of the pelvis, showing a large and deep cavity along the articular portion of the pubes, and that contained a sequestrum. It is smooth, though very irregular upon the inner surface ; and there is very little disease of the bone about it. The surface, externally, was red, with fistulas ; and the disease appeared to be superficial. 1856.
Dr. H. J. Bigelow.
1322. A femur, that had been the seat of necrosis for about forty years. From a man, fifty years of age. (Hospital, 69, 103.) Suppuration almost from the first, with occa- sional discharge of bone. Eight openings about lower part of thigh. Health feeble. Amputated, and did well. In the interior of the bone is a cavity, about 6 in. long, with large openings from it upon each side, but no dead bone ; several small pieces having been removed before the operation, and a large one before his entrance into the hospital. The bone shows the effects of chronic inflamma-
�� �
