CONTENTS 



Their ideas of the "spirit" of metals, p. 130 Interest taken by 

 nnu-nts in the philosopher's stone, p. 133 Dangers attending 

 the practice of alchemy, p. 134 Formation of religious sects, p. 

 135 Substances thought to contain the magic "essence" at vari- 

 ous times, p. 136 Deceptions practised by clever impostors, p. 137 

 Final overthrow of the belief in alchemy, p. 140 Astrology, p. 

 141 Its uses and methods of studying it, p. 142 Judicial astrology 

 at its height in England, p. 145 Lilly and his predictions, p. 146 

 The explanation of some remarkable predictions, p. 154. 



CHAPTER VII 



FROM PARACELSUS TO HARVEY 



Paracelsus, p. 156 His early life, p. 156 His revolutionary teach- 

 ings, p. 157 Influence of his teaching, p. 158 His relation to mod- 

 ern chemistry, p. 163 The great anatomists, p. 163 Charles 

 Etienne and Andrew Vesalius, p. 163 Fate of Vesalius, p. 165 

 The teachings of Eustachius, Fallopius, and Columbus, p. 165 

 Michael Servetus and the discovery of the pulmonary circulation, 

 p. 168 The coming of Harvey, p. 169 Harvey as physician to 

 Charles I., p. 170 His demonstration that the intra ventricular 

 septum of the heart is not porous, p. 171 His discovery of the enor- 

 mous amount of blood passing through the heart hourly, p. 173 

 Experiments to prove that the blood passes from the heart by the 

 arteries and is returned by the veins, p. 173 His demonstration 

 with ligatures to show the difference in the direction of the two 

 blood currents, p. 175 Antony von Leeuwenhoek and the discov- 

 ery of microbes, p. 179. g 



CHAPTER VIII 



MEDICINE IN THE SIXTEENTH AND SEVENTEENTH CENTURIES 



Ambroise Pare", p. 181 His improvements in surgery, p. 181 

 Peter Franco's operation for strangulated hernia, p. 182 Fabricius 

 Hildanes, p. 183 The medical system of Jan Baptista van Hel- 

 mont, p. 185 The 1 ' atrochemical school, p. 186 The I atro physical 

 school, p. 187 Borelli's foundation for establishing it, p. 188 

 jThomas Sydenham, p. 189 His work in establishing rational treat- 

 ;ment of diseases, p. 189. 



CHAPTER IX 

 PHILOSOPHER -SCIENTISTS AND NEW INSTITUTIONS OP LEARNING 



jFrancis Bacon, p. 192 His teachings of inductive study, p. 192 

 (Descartes, p. 193 His theories and his discoveries, p. 193 His 



/ IT 



