“S.W., aged 16, was admitted March 12, under the care of Mr. LISTON. She is a servant girl, of sanguine temperament and good constitution. On Friday, March 9, she was cleaning the outside of a parlour window, and stood on the sill. The window-sash, upon which she was depending for support, being suddenly drawn down by a person inside, she was precipitated into an area, a distance of fifteen feet. She was immediately picked up, and conveyed to the hospital. The house-surgeon detected a compound fracture of the ulna, and a fracture of the radius, both fractures being a little above the wrist-joint of the right arm. The fracture was adjusted, and the wound, which was inferiorly to, and behind, the wrist, dressed in the usual manner. A dose of house-medicine was administered; suitable directions were given in case of the occurrence of pain or swelling; she was sent home, and desired to remain quiet. The following morning (Saturday) she was visited by the house-surgeon, who found her comfortable, but she had passed a sleepless night. On Sunday morning the affected part became so intolerably painful that she tore off the splints and bandages, which one of the dressers of the hospital had a short time before readjusted; in the evening she was in great pain, and the arm was much swollen. “12. To-day (Monday) she was admitted into the hospital; water-dressing was applied to the wound. The bandages were reapplied, and an anodyne administered in the evening, with the effect of producing some rest. “13. The pain and swelling were so great during the night that the house-surgeon was called up to see her, and ordered the application of fomentations; this morning she is much more comfortable. “14. On removing the whole of the apparatus this morning early, mortification was found to have taken place in the limb; at the time of Mr. Liston’s visit in the middle of the day, the limb was very swollen, the fingers were of a black colour, the forearm livid, there were vesications near the elbow with fetid discharge. There was a good deal of fever with slight delirium; pulse irregular, quick. Mr. Liston considered the only chance the patient had was the immediate amputation of the limb at the shoulder. The patient’s consent having been readily obtained, Mr. Liston proceeded at once to the