INDEX 



267 



Pyroxylin, 73. 

 Pyrrophyllin, 107. 

 Pyrridine, 154. 

 Pyrrolidine, 154. 



Quaternary amines, 152. 

 Quercetin, 84, 118. 

 Quercitrin, 84. 

 Quinine, 155, 157. 

 Quinoline, 155, 158. 



Radiant energy, 19. 

 Raffinose, 45, 52, 53. , 



Rape-seed oil, 130. 

 Reducing sugars, 39, 49. 

 Reductases, 186, 190. 

 Reserve food, 21. 

 Resenes, 149. 

 Resins, 18, 146, 149. 

 Resorcinol, 95. 



Respiration, 18, 121, 235, 236. 

 Rhamnase, 77, 189. 

 Rhamnetin, 84. 

 Rhamnose, 35, 52, 77, 79. 

 Rhodeose, 35, 81. 

 Rhodophyllin, 107. 

 Ribose, 35. 

 Ricin, 176. 

 Rubiadin, 83. 

 Rubiphyllin, 107. 



Saccharide, 31. 

 Salicin, 80. 

 Saligenin, 80. 

 Salinigrin, 81. 

 Salts, 224, 227, 237. 

 Sambunigrin, 87. 

 Sapogenins, 90. 

 Saponification, 134. 

 Saponification value, 138. 

 Saponins, 90. 

 Sapotoxins, 90. 

 Saprophytes, 16. 

 "Saturated" acids, 132. 

 Scopolin, 82. 

 Secalin, 63. 



Secondary amines, 152. 

 Secretions, 20. 



Sedoheptose, 36. 



Semipermeable membranes, 228. 



Sensitizers, 27. 



Serine, 168. 



Silicates, 12. 



Silicon, 4, 12.' 



Silver, 247. 



Simple proteins, 165, 174, 175. 



Sinalbin, 89. 



Sinalbin mustard oil, 89. 



Sinapin acid sulfate, 89. 



Sinigrin, 88. 



Sinistrin, 62. 



Sitosterol, 136. 



Skimmetin, 81, 82. 



Skimmin, 81. 



Soaps, 134, 208. 



Sodium, 4, 9, 12, 13, 14. 



Sodium stearate, 133. 



Sol, 205. 



"Soluble starch," 60. 



Sorbitol, 48. 



Sorbose, 36, 38, 45, 48. 



Specific rotatory power, 38, 39. 



, of fructose, 39, 47. 



, of galactose, 49. 



, of glucose, 39, 47. 



, of maltose, 51. 



, of raffinose, 53. 



, of sucrose, 39. 

 Spermaceti, 129, 133. 

 Stachydrine, 155. 

 Stachyose, 54. 



Starch, 8, 22, 28, 30, 31, 45, 59, 64. 

 "Starch paste," 60. 

 Stearin, 131, 134. 

 Stereo-isomerism, 32. 

 Stigmasterol, 136. 

 Structural adaptations, 255. 

 Structural isomerism, 32. 

 Strychnine, 155, 157. 

 Substrate, 186. 

 Sucrase (see invertase). 

 Sucrases, 186. 

 Sucrose, 28, 49, 64. 

 Sugars, 8, 18, 22, 28, 30, 31. 

 Sulfur, 3, 5, 11, 148. 

 Sulfuretted oils, 147, 148. 



