"The operation of trephining the skull, which was widely and successfully practiced by primitive peoples in nearly all parts of the world, may be considered the highest achievement of prehistoric surgeons."
So wrote Dr. Spencer L. Rogers of California's San Diego State College last week in the American Journal of Physical Anthropology. From the study of 60 prehistoric Peruvian skulls which bore evidence of trephining, Dr. Rogers was able to tell a good deal about the nature and success of the primitive operation. The methods used in removing the bone included drilling, sawing,...
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