Of the material sold during the 1936 Sotheby's auction, several documents indicate an interest by Newton in the procurement or development of The Philosopher's Stone. Most notably are documents entitled, "Artephius his secret Book", followed by "The Epistle of Iohn Pontanus, wherein he beareth witness of ye book of Artephius", these are themselves a collection of excerpts from another work entitled, "Nicholas Flammel, His Exposition of the Hieroglyphicall Figures which he caused to be painted upon an Arch in St Innocents Church-yard in Paris. Together with The secret Booke of Artephius, And the Epistle of Iohn Pontanus: Containing both the Theoricke and the Practicke of the Philosophers Stone". This work may also have been referenced by Newton in its Latin version found within Lazarus Zetzner's, "Theatrum Chemicum", a volume often associated with the Turba Philosophorum and other early European alchemical manuscripts. Nicolas Flamel, (one subject of the aforementioned work) was a notable, though mysterious figure, often associated with the discovery of The Philosopher's Stone, Hieroglyphical Figures, early forms of tarot, and occultism. Artephius, and his "secret book", were also subjects of interest to 17th Century alchemists.
Also in the 1936 auction of Newton's collection was, "The Epitome of the treasure of health written by Edwardus Generosus Anglicus innominatus who lived Anno Domini 1562". This is a twenty-eight page treatise on the Philosopher's Stone, the Animal or Angelicall Stone, the Prospective stone or magical stone of Moses, and the vegetable or the growing stone. The treatise concludes with an alchemical poem.
Free eBooks (Can Be Downloaded):
Aleister Crowley - The Invocation Of ThothParacelsus - The Coelum Philosophorum Or Book Of Vexations
John Mitchell - The Philosophy Of Witchcraft
Israel Regardie - The Philosophers Stone