CROLL, Oswald (Crollius). La royalle Chymie de Crollius, traduite en francois par J.Marcel de Boulene. 1627.

Second French edition of this collection of treatises on alchemy of Oswald Croll, one of the first disciples of Paracelsus, translated by the surgeon Jean Marcel Boleyn.
The book is divided into three treaties:
- The first: Préface admonitoire, contenant les mysteres tres-profond & plus rares de la Philosophie tant naturelle que de la grace, touchant l'excellence de la medecine Chymique, & grandeur du Microcosme
- The second is "la Royalle chymie de Crollius"
- The third: Traicté des signatures, ou vraye et vive anatomie du grand & petit monde.
This part contains many signs and alchemical symbols often lacking.
Edition with engraved title page.