Bion of Abdera and the Mathematics of Sundials

Bion of Abdera, fourth century BCE, is the name this site attaches to a Greek writer from Abdera, named with Democritus by later hosts. Vitruvius is Latin and later, on sundials. Varro is Latin and later, on weather signs.

What this site holds is Testimonies: quotation, not On Weather Signs as an autograph. Cleomedes and Sextus Empiricus are Greek hosts named in the work file. It is testimonia, not a surviving treatise.