ALCHIMIE. Moelle de l'alchimie. The marrow of alchemy : being an experimental treatise, discovering the secret and most hidden mystery of the philosophers elixer : divided into two parts, the first containing four books chiefly illustrating the theory, the other containing three books, elucidating the practique of the art : in which, the art is so plainly disclosed as never any before did for the benefit of young practitioners, and the convincing those who are in errours laby.inth 1654. (Traduction française de : The Marrow of Alchemy... Londres : Brewster, 1654 . La moelle de l'alchimie ou Traité dans lequel on découvre par des expériences les secrets et les mystères les plus cachez de l'elixir des philosophes)