—J. S. H., aged 28, section laborer, when about 10 years of age noticed a small lump on the outer surface, near the lower end of the right ulna, which has slowly yet constantly grown until the present time. He does not remember any traumatism to this part at any time.
Description of Tumor.
—The tumor itself measures 7½ inches in circumference; its surface is rough and jagged, resembling the cauliflower somewhat in appearance. The radiograph (Fig. 1), which was taken by me before the operation, shows clearly the usual shortening of the shaft of the ulna and the drawing away of its articular surface from the wrist joint. It also shows the peculiar curving of the shafts of both the bones of the forearm, compensating, in part, for this development, and also the malposition of the distal extremity of the ulna. Since the operation the distal piece has