398 



INDEX 



Poly poms betiilimis, in, | 



Polysaccharides, 93. i 



Pomegranate, 207, 213, 256, 258. 

 Pontederia cordata, 95. 

 Poppy seed oil, 4, 20. 

 Populin, 171. 

 Popnlus, 172. 



— nigra, 239. 



— pyramidalis, 239. 

 Porphyrin, 232, 234. 

 Portlaudia grandiflora, 190. 

 Potato, 182, 271, 382, 383. 

 Precipitation of colloids, 294. 

 Precipitin, 320. 

 Primrose, 196. 

 Primula sinensis, 244. 

 Primulaceae, 180. 

 Prochromogens, 251. 

 Prolamin = gliadin, 314. 

 Proline, 306, 318, 319; occurrence in 



plant, 311. 



Prosthetic group, 315. 



Protamines, 312. 



Proteaceas, 173, 180. 



Protease, 360. 



Protective power, 281. 



Protein, animal and vegetable, 318; 

 colloidal properties, 298 ; composi- 

 tion, 307, 308; crystals, 291; de- 

 composition products, 271, 303 ; 

 estimation, 333; extraction, 320; 

 grains, 291 ; hydrolysis, 307; micro- 

 chemistry, 298 ; occurrence, 291, 319 ; 

 optical activity, 294 ; origin of fats 

 from, 40 ; properties, 292 ; purifica- 

 tion, 322; synthesis in plant, 323. 



Proteins and cold, 295. 



Proteoses, 317. 



Protoalkaloids, 263. 



Protocatechuic acid, 198. 



Protoplasm, enzyme action, 357, 363. 



Pniniis Laiirocerasus, 173, 175, 177. 



— Padiis, 173. 



Prussic acid, see Hydrocyanic acid. 

 Pseudo-cellulose, 129. 

 Pseudo-nuclein, 315. 

 Pseudo-chloroplasts, 225. 

 Pseudo-tannin, 190, 207. 

 Psilotum, 35. 

 Pterocarpns, 198. 



— saxatilis, 125. 

 Ptomaines, 264. 

 Pulvini, 192, 215. 

 Pumpkin, 311. 



— oil, 20. 



Punica granatum, 258. 

 Purine, 267. 

 Pyridine, 254, 256. 

 Pyrocatechol = Pyrocatechin, 198, 



199. j Resin, 193, 216. 



Pyrocatechol tannins, 207. ! Resorcinol, 199, 



Pyrogallol, 201. 



— tannins, 207, 208. 

 Pyroxylin, 139. 

 Pyrrole, 263. 

 Pyrrolidine, 257, 263. 

 Pyrrolidine carboxylic acid = Proline, 



306. 

 Pyrroline, 263. 

 Pyrrophyllin, 233. 

 Pyrroporphyrin, 232. 

 Pyrus, 48, 191. 



— Amygdalus, 178. 



— Aucuparia, 63, 178, 231, 265, 328, 

 376. 



— cydonia, 178. 



— Mains, 178, 240, 375. 



Quebracho, 208. 

 Quercetin, 201, 239. 

 Quercitannic acid, 214. 

 Quercitrin, 166. 

 Qnercus, 191, 192. 



— Cerris, 193. 



— coccinea, 192, 193. 



— Ilex, 192. 



— infectoria, 209. 



— Uisitanica, 192. 



— pediinciilata, 192, 193. 



— Prinits, 194. 



— sessiliflora, 192, 193. 



— tinctorius, 166, 240. 

 Quillaia, 181. 

 Quinine, 258; preparation from cinchona 



bark, 262. 

 Quince oil, ig. 

 Quinoline, 255. 



— alkaloids, 258. 

 Quinovin, 58, 

 Quinovite, 58. 

 Quinovose, 51, 58, 



Radish seed oil, 20. 



Radium emanation and photosynthesis, 



157- 

 Raffinose, 51 ; occurrence, 72. 

 Ranales, 173. 

 Rancidity of fats, 18, 

 Ranunculaceas, 173, 180, 255, 386. 

 Ramincultis bulbosus, 278. 

 Rape seed oil, 4, 20. 

 Raphidinm, 324. 

 Ratanhia, 207. 

 Reichert Meissl value determination, 



33 ; table, 33. 

 Rennin, 339. 

 Reseda hi tec la, 240. 

 Reserve cellulose, 117 ; occurrence, 129 ; 



food stuffs, 171 ; of aquatic plants, 



