Smithsonian Report, 1957. — Stewart 



Plate 2 



Head of a Peruvian mummy with a large trephine opening in the left parietooccipital 

 region made by the drilling technique. The opening is 57 mm. long and 43 mm. wide 

 and thus may be the largest on record made in this way. The scalp has been turned 

 back to expose the opening; it appears to have been cut into three or four flaps by radiating 

 incisions. Musee de l'Homme No. 79-1-22, Utcumbamba, Piedra Grande. (Photograph 

 courtesy of Henri V. Vallois.) 



