The operation presented no difficulties, and, thanks to the circular saw, only occupied 35 minutes from beginning to end. Compared with the usual method of trying to get access from the front, and working in a narrow pocket continually filling with blood, the advantages of Krönlein's operation are enormous and obvious. In this case under any other method it would have been necessary to sacrifice the eye. . . . Microscopically it presents the characters of a round-celled sarcoma of an aberrant form.