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OF THE ESSENCE OF THE MOON.
Anaximander affirms that the circle of the moon is nineteen times bigger than the earth, and resembles the sun, its orb being full of fire; and it suffers an eclipse when the wheel makes a revolution,--which he describes by the divers turnings of a chariot-wheel, in the midst of it there being a hollow nave replenished with fire, which hath but one way of expiration.

Xenophanes, that it is a condensed cloud.

The Stoics, that it is mixed of fire and air.

Plato, that it is a body of the greatest part fiery.