Rosary of the Philosophers
The Rosary of the Philosophers (Rosarium philosophorum sive pretiosissimum donum Dei) is a 16th-century alchemical treatise. It was published in 1550 as part II of De Alchimia Opuscula complura veterum philosophorum (Frankfurt).
Source: Wikipedia — Rosary of the Philosophers (CC BY-SA 4.0)