.

OF THE ECLIPSE OF THE SUN.
Thales was the first who affirmed that the eclipse of the sun was caused by the moon's running in a perpendicular line between it and the world; for the moon in its own nature is terrestrial.

And by mirrors it is made perspicuous that, when the sun is eclipsed, the moon is in a direct line below it.

Anaximander, that the sun is eclipsed when the fiery mouth of it is stopped and hindered from respiration.

Heraclitus, that it is after the manner of the turning of a boat, when the concave seems uppermost to our sight, and the convex nethermost.