1572; they consist of one egg.

De Alchymistarum Artibus. 9. De vi caustica et conversione salium alkalino-fixorum aëri expositorum in salia neutra. He published separately, 1. De oleo distillato formicorum æthereo. 2. De succino, opio, caryophyllis aromaticis et castoreo. 3. On saltpetre, sulphur, antimony, and thus profit.