Guilhelmus Fabricius Hildanus, Opera quae extant omnia (Complete Works). Frankfurt: J. Beyer, 1646.
Guilhelmus Fabricius Hildanus was known as the father of German surgery, performing procedures "that would be classified today as neurosurgery," according to a paper about him published last year in the journal Child's Nervous System.
In this woodcut, Hildanus portrayed Claude Mayor, the ruler of a small Swiss town called Lutry. Mayor had an eye tumor.