This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

The Mastery (Magisterium): In alchemy, this refers to the "Great Work"—the successful completion of the process to create the Philosopher's Stone or the transmutation of base metals into gold.
Hitherto hidden like a treasure,
now made public for the sake of the Sons of Doctrine original: "Doctrinæ Filiorum." This term refers to the "Sons of Art" or "Sons of Wisdom," the traditional name for students and initiates of the alchemical secrets. through Hermetic propositions;
with its touchstone Touchstone (Lydius Lapis): Originally a dark stone used to test the purity of gold and silver; metaphorically, a standard or test for the authenticity of alchemical claims. and a most easy practice added;
First brought to light in the year 1657 at the expense of Lord Hugues de la Barme original: "Hugini à Barmâ." Hugues de la Barme was a 17th-century French alchemist known for this specific work., a chemical philosopher; now committed to the press for the second time (with figures);
A decorative printer's ornament consisting of a horizontal sprig of foliage with leaves and small floral or berry clusters.