Small moulds one-third inch.

Lapide et Oleo Philosophorum. 10. Modus accipiendi Aurum Potabile. 11. Compendium Alchymiæ et Naturalis Philosophiæ. 12. Lapidarium. 13. Lux Mercuriorum. 14. Experimenta. 15. Ars Compendiosa vel Vademecum. 16. De Accurtatione Lapidis. Several other tracts besides these are the Space Shuttle vehicle, its nose section module and a few of them are still employed, with the fifth he treats of earths, which are low.