

Physics, 21, 28, 81. 32, 



74 </.-. /.. !>l -.'. /.. 111),.' .*.-;.. 



123, 155 rf ^7., 170 at *g., 



' seq., 245 rf g. 

 Physiology, 6, 21, 38, 78, 173 



*eq. 



Picard, 111. 

 Plato, 18, 270 et seq. 

 Playfair, 133, 137. 

 Pliny, 37. 



Pneumatic Institution, 173. 

 PoincarS, 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. 00 ! 



Mf, 

 Kurnford. 1M. 



ford, 247 et Mf. 



.edict, 5*. 

 lomas Aquinas, 53. 

 Saturn, 2, W, 145. 

 Saussure, 133. 

 Scheele, 156, 180. 

 Scientific apparatus, 17. 40. 80 



et seq. 



Scotus Erigena, 53. 

 Seneca, 40. 

 Shafts 



Signs of zodiac, 9. 33. 

 Silkworm, 100. 221 et Mf. 

 Siphon, 95. 

 Sinus, 4. 



Smith, Adam. HI. 133. 5. 

 Smith, William, \Wfteq. 

 Smithsonian Institution, 105, 



*5:i. i:5s. 



Socrates, 44, 117. 

 Soda, 8, 51, 179. 

 Soddy, 248 et *?. 

 Sodium, 179. 

 Sosigenes, 36. 



!. 33. 



Species, 24, 107 et Mf. 

 Specific gravity. 28, 36, 50. 

 Spectrum analysis, 153, 231. 

 Sphericity of the earth, tt 



37. 



meous generation, 15. tl& 



Sprat, 105. 100. 

 Steel, 8. 23. 



Survival, 0. 

 Syntax**. 45. 



Tables, astronomical. 40. 50. 01. 



L8fl ' * ; 

 Tanning, 177. 



