top">§ 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 § 85. “Modern Alchemy” 117 § 86. X-Rays and Becquerel Rays 117 § 87. The Discovery of Radium 118 § 88. Chemical Properties of Radium 119 § 89. The Radioactivity of Radium 120 § 90. The Disintegration of the Radium Atom 122 § 91. “Induced Radioactivity” 123 § 92. Properties of Uranium and Thorium 123 § 93. The Radium Emanation 124 § 94. The Production of Helium from Emanation 125 § 95. Nature of this Change 127 public@vhost@g@gutenberg@html@files@43240@43240-h@43240-h-7.htm.html#Section96" class="pginternal"