§ 46. Paracelsus 58 § 47. Views of Paracelsus 60 § 48. Iatro-chemistry 61 § 49. The Rosicrucian Society 62 § 50. Thomas Charnock 65 § 51. Andreas Libavius 66 § 52. Edward Kelley and John Dee 67 § 53. Henry Khunrath 70 § 54. Alexander Sethon and Michael Sendivogius 70 § 55. Michael Maier 72 § 56. Jacob Boehme 74 § 57. J. B. van Helmont and F. M. van Helmont 75 § 58. Johann Rudolf Glauber 77 § 59. Thomas Vaughan (“Eugenius Philalethes”) 77 § 60. “Eirenæus Philalethes” and George Starkey 79 CHAPTER V. THE OUTCOME OF ALCHEMY 81 § 61. Did the Alchemists achieve the _Magnum Opus_? 81 § 62. The Testimony of van Helmont 82 § 63. The Testimony of Helvetius 83 § 64. Helvetius obtains the Philosopher’s Stone 85 § 65. Helvetius performs a Transmutation 87 § 66. Helvetius’s Gold Assayed 88 § 67. Helvetius’s Gold Further Tested 88 § 68. The Genesis of Chemistry 89 § 69. The Degeneracy of Alchemy 90 § 70. “Count Cagliostro” 91 CHAPTER VI. THE AGE OF MODERN CHEMISTRY 94 § 71. The Birth of Modern Chemistry 94 § 72. The Phlogiston Theory 94 § 73. Boyle and the Definition of an Element 96 § 74. The Stoichiometric Laws 96 § 75. Dalton’s Atomic Theory 99 § 76. The Determination of the Atomic Weights of the Elements 102 § 77. Prout’s Hypothesis 102 § 78. The “Periodic Law” 105 § 79. The Corpuscular Theory of Matter 109 § 80. Proof that the Electrons are not Matter 110 § 81. The Electronic Theory of Matter 112 § 82. The Etheric Theory of Matter 113 § 83. Further Evidence of the Complexity of the Atoms 114 § 84. Views of Wald and Ostwald 115 CHAPTER VII. MODERN ALCHEMY 117