Introduction; Part I. Ancient Texts: 1. Hermes Trismegistus: The Emerald Table (Tabula smaragdina); 2. Plato: from the Timaeus; 3. Aristotle: from the Meteorology; 4. Pseudo-Democritus: from the Treatise of Democritus on Things Natural and Mystical; 5. Anonymous: Dialogue of Cleopatra and the Philosophers; 6. Anonymous: from Leiden Papyrus X and the Stockholm Papyrus; 7. Zosimos of Panopolis: Of Virtue, Lesson 1-3; 8. Stephanos of Alexandria: from The Great and Sacred Art of the Making of Gold; 9. Anonymous: The Poem of the Philosopher Theophrastos upon the Sacred Art; Part II. Islamic and Medieval Texts: 10. Khalid ibn Yazid: from Secreta Alchymiae; 11. Pseudo-Geber: from Of the Investigation or Search of Perfection; Of the Sum of Perfection; and His Book of Furnaces; 12. Avicenna: De Congelatione et Conglutinatione Lapidum; 13. Albertus Magnus: from the Libellus de Alchimia; 14. Roger Bacon: from the Radix Mundi; 15. Nicolas Flamel: from His Exposition of the Hieroglyphical Figures; 16. Bernard, Earl of Trevisan: A Treatise of the Philosophers Stone; 17. George Ripley: The Epistle of George Ripley written to King Edward the 4; Part III. Renaissance and Seventeenth Century Texts: 18. Paracelsus: from Of the Nature of Things and Paracelsus His Aurora; 19. Francis Anthony: Aurum-Potabile: or the Receit of Dr. Fr. Antonie; 20. Michael Sendivogius: from A New Light of Alchymie and A Dialogue between Mercury, the Alchymist and Nature; 21. Robert Fludd: from Mosaicall Philosophy; 22. Gabriel Plattes: A Caveat for Alchymists; 23. John French: preface to The Divine Pymander of Hermes Mercurius Trimegistus in XVII Books; 24. George Starkey/Eirenaeus Philalethes: The Admirable Efficacy, and almost incredible Virtue of true Oyl; from An Exposition Upon Sir George Ripley's Epistle to King Edward IV; 25. Elias Ashmole: Prolegomena to the Theatrum Chemicum Britannicum; 26. Robert Boyle: from An Historical Account of a Degradation of Gold Made by an Anti-Elixir: A Strange Chymical Narrative; 27. Isaac Newton: The Key (Keynes MS 18); The Commentary on the Emerald Tablet (Keynes MS 28), King's College, Cambridge; Glossary; Bibliography; Index.