I present this small series of twelve cases because there is no operation in the domain of rhinology around which so much controversy has raged as the external operation on the frontal sinus. There is no operation which has been productive of so much disappointment and discouragement, no operation which has been fraught with so much repulsive physical deformity. It is also attended with great danger to life. The value of this operation is still in the balance, and therefore I feel that every time it is performed the results should be reported in careful detail. The apparent successes, the discouraging failures, the sad fatalities should be brought to light so that discriminating men may carefully piece together a complete technic which will give at once the safest and most efficient method of attack on chronic empyema of the frontal sinus.
In the cases presented here, with one exception, the