The Hermetic Arcanum

Attributed to Jean d'Espagnet, this concise alchemical treatise presents the philosopher’s stone as the culmination of a disciplined spiritual and material process. Historically important as a clear early-modern synthesis of Hermetic philosophy and laboratory alchemy, it offers readers symbolic explanations of the Great Work, the virtues of metals, and the stages of purification and transformation.

Jean d'Espagnet (c. 1564–c. 1637) was a French magistrate, alchemist, and writer associated with the Hermetic and alchemical currents of the early modern period. He is best known for works that interpret alchemy philosophically and spiritually, including the influential Enchiridion physicae restitutae.