13. If we take Sand or Stones that contain Sol, and melt them with Lead ashes into Glass, and reduce them again with fixed Salt, then by cupelling this Lead ashes, and the reduced Sand or Stones severaltimes, we shall have the Sol that was in the Stones.

To extract Sol from Stones.

14. The black or brown Pebbles found in Brooks, and which break smooth like Glass, being mixed with the best Eagles wings and distilled by retort, yield much Sol.

A Tincture from Metals.

15. Jupiter is the highest Regent over the upper Constellations. Sol gives to all Stars their Light, Mars rules upon Earth, and Saturn in the Earth, and of these four an universal Tincture may be prepared.

16. Mars and Saturn in particular yields great riches, when being reduced to Glass they are several times driven through a Reverberatory, according to that of the Ancient Philosophers; by Saturn and Mars, fire and art, great wealth may be found.

That there is a renovating vertue hid in Spiders.

17. Spiders renew themselves every month by casting their skins, wherefore a medicine prepared of them by the Flame of Spirit of Wine renews man.

18. It is also to be observed that all Birds, especially those that feed upon Flies and Worms, when they are sick, cure themselves by eating Spiders.

Secrets of Serpents.