The Story of Alchemy and the Beginnings of Chemistry

---- on combustion, 141. ---- on elements, 161. ---- on the "hermetick philosophers," 95. ---- on the language of the alchemists, 55. ---- on the natural state of bodies, 43. Cagliostro, 110. Calcination, 129, 132, 135, 140, 142, 151, 155. Chaucer's Canon's Yeoman's Tale, 107. Chemical conception of material changes, 177. Chemistry, aim of, 9, 26, 160. ---- change from alchemy to, 126. ---- methods of, 10. ---- probable origin of word, 24. Classification, alchemical methods of, 59. Colours, Lucretius' explanation of differences between, 18. Combustion, 141. Compounds, chemical conception of, 171. Conservation of mass, 164. Curie, her discovery of radium, 182. Dalton's additions to the Greek atomic theory, 21, 172. Democritus, his saying about atoms, 15. Dephlogisticated air, 147. Destruction, thought by alchemists to precede restoration, 65, 127. Electrons, 187-189, 197, 198. Elements, alchemical, contrasted with chemical, 165; radio-active substances contrasted with, 190-192. ---- the alchemical, 49, 54, 60. ---- the chemical, 61, 62, 161. ---- use of word, by phlogisteans, 133. Essence, the alchemical, 32, 35, 49, 58, 72. Fire, different meanings of the word, 53. Gates, the alchemical, 69. Gold, considered by alchemists to be the most perfect metal, 40, 45. Greek thinkers, their atomic theory, 15. Hermes Trismegistus, 37. Kathode rays, 188. Language of alchemy, 96. ---- purposely made misleading, 36. Lavoisier on calcination, 153, 155. ---- his use of word element, 194. ---- his use of word principle, 163, note. ---- on object of chemistry, 160. ---- on oxygen, 155. ---- on systems in science, 163.