Figure 82.

Skull from the Bougon dolmen (Deux-Sèvres), seen in profile.

In nearly every case the subjects operated on were young, and long survived the operation. The knowledge of this fact was from the first a very useful guide in the study of the subject of trepanation, and eagerly pursued researches constantly confirm it. One skull, for instance, from the cave of L’Homme Mort (Fig. 83), had a large opening produced partly by an old operation and partly by two posthumous trepanations. The subject had been trepanned in childhood or early youth. There could be no doubt on that point; cicatrization had been complete, the bony tissue having returned to its original condition. Then after death, at an adult age, the relations or friends of the deceased had cut out further round portions of the skull as near as possible to the old wound, probably with a view to keeping these pieces as amulets.