§ 14. Supposed Proofs of Transmutation 17 § 15. The Alchemistic Elements 18 § 16. Aristotle’s Views regarding the Elements 19 § 17. The Sulphur-Mercury Theory 20 § 18. The Sulphur-Mercury-Salt Theory 22 § 19. Alchemistic Elements and Principles 23 § 20. The Growth of the Metals 25 § 21. Alchemy and Astrology 26 § 22. Alchemistic View of the Nature of Gold 27 § 23. The Philosopher’s Stone 29 § 24. The Nature of the Philosopher’s Stone 30 § 25. The Theory of Development 32 § 26. The Powers of the Philosopher’s Stone 34 § 27. The Elixir of Life 35 § 28. The Practical Methods of the Alchemists 36 CHAPTER III. THE ALCHEMISTS (A. BEFORE PARACELSUS) 39 § 29. Hermes Trismegistos 39 § 30. The Smaragdine Table 40 § 31. Zosimus of Panopolis 42 § 32. Geber 42 § 33. Other Arabian Alchemists 44 § 34. Albertus Magnus 44 § 35. Thomas Aquinas 44 § 36. Roger Bacon 45 § 37. Arnold de Villanova 47 § 38. Raymond Lully 47 § 39. Peter Bonus 49 § 40. Nicolas Flamel 51 § 41. “Basil Valentine” and the _Triumphal Chariot of Antimony_. 52 § 42. Isaac of Holland 53 § 43. Bernard Trévisan 54 § 44. Sir George Ripley 55 § 45. Thomas Norton 56 CHAPTER IV. THE ALCHEMISTS (B. PARACELSUS AND AFTER) 58