INDEX 



287 



Physics, 21, 28, 31, 32, 50, 54, 

 74 et seq., 94 et seq., 110 et seq., 

 123, 155 et seq., 170 et seq., 

 231 et seq., 245 et seq. 



Physiology, 6, 21, 38, 78, 173 

 et seq., 225 et seq. 



Picard, 111. 



Plato, 18, 270 et seq. 



Playfair, 133, 137. 



Pliny, 37. 



Pneumatic Institution, 173. 



Poincare, Henri, 255, 267. 



Port Royal, 116, 279. 



Potash, 23, 51, 179. 



Potassium, 179. 



Precession of the equinoxes, 10, 

 112. 



Priestley, 126, 156. 



Primitive man, 206. 



Principia, 110, 114. 



Prism, 40. 



Protyl, 254. 



Psychology, 23, 256 et seq. 



Ptolemy, 45, 55. 



Pythagoras, 17. 



Quadrants, 50, 86. ] 

 Quintilian, 39. 



Rabies, 227 et seq. 



Racemic acid, 215. 



Radioactivity, 245 et seq. 



Ramsay, 246. 



Ray, 110. 



Regiomontanus, 55. 



Religion, 3, 8, 10, 40, 43 et seq., 



142 et seq. 

 Rey, 94. 



Rhind papyrus, 6. 

 Rontgen rays, 231. 

 Rousseau, 270. 

 Royal Institution, 176. 

 Royal Society of Edinburgh, 



133. 



Royal Society of London, 99 et 



seq. 



Rumford, 166. 

 Rutherford, 247 et seq. 



St. Benedict, 52. 



St. Thomas Aquinas, 53. 



Saturn, 2, 92, 145. 



Saussure, 133. 



Scheele, 156, 180. 



Scientific apparatus, 17, 49, 86 



et seq. 



Scotus Erigena, 53. 

 Seneca, 40. 

 Shaftesbury, 117. 

 Signs of zodiac, 9, 33. 

 Silkworm, 109, 221 et seq. 

 Siphon, 95. 

 Sirius, 4. 



Smith, Adam, 121, 133, 256. 

 Smith, William, 139 et seq. 

 Smithsonian Institution, 195, 



233, 238. 

 Socrates, 44, 117. 

 Soda, 8, 51, 179. 

 Soddy, 248 et seq. 

 Sodium, 179. 

 Sosigenes, 36. 

 Sound, 33. 



Species, 24, 197 et seq. 

 Specific gravity, 28, 36, 50. 

 Spectrum analysis, 153, 231. 

 Sphericity of the earth, 26, 



37. 



Spontaneous generation, 25, 218. 

 Sprat, 105, 109. 

 Steel, 8, 23. 

 Sundial, 13. 

 Survival, 206. 

 Syntaxis, 45. 



Tables, astronomical, 49, 50, 91, 



185 et seq. 

 Tanning, 177. 



