Note 38 — Chapter VI · Industry, Commerce, and Social Organization; Fights, Wounds and Trepanation.
N. D'Anvers translation
The size of the perforations made varies ad infinitum. One, the largest known, is described which is no less than sixteen inches in diameter.38 Examples are known of the trepanation of every part of the skull, even of the forehead, which at one time was supposed to have escaped. We have ourselves given instances of frontal trepanation, and Dr. Prunières mentions eleven cases in which the forehead had been operated on.