C. R., a French boy, 12 years old, living in Cambridge, was seen in consultation with Dr. H. C. Hache, Somerville, Mass. The patient had been sick for eleven days and had been seen by other physicians. Two months before he had received a cut in the right foot while skating, which had healed. Some days previous to our visit he had been skating and came home with wet feet; then was suddenly seized with intense pain about the right ankle. Swelling rapidly followed and extended to the knee. Pain was excessive, requiring morphin. Vomiting with repeated chills followed. Examination. —Patient showed signs of septic absorption on Feb. 1, 1911, and appeared listless until leg was handled, then would cry out with pain. Right leg, which was swollen from ankle to knee, was held in a semiflexed position; was edematous and painful. Skin was red and had glazed appearance, especially