408 



INDEX 



Pittosporacea;, 183. 



Plasmatic membrane, 50. 



Plasmolysis, 376. 



Platanaceae, 176. 



Platanus, 236. 



Platinichlorides of bases, 270, 276; of 

 lecithin, 46. 



Pleurococcus, 334. 



Plum-kernel oil, 19. 



Polarimeter, 93, 94. 



Polemoniaceae, 183. 



Pollen, 322. 



Polygalaceae, 183. 



Polygonum tinctoriuni, 191. 



Polymerization of aldehydes, 150. 



Polypeptides, natural, 320, 327; syn- 

 thetic, 319, 328. 



Polyporeae, 194. 



Polyporus betulinus, 114. 



Polysaccharides, 97. 



Pomegranate, 210, 216, 266, 268. 



Pontederia cordata, 98. 



Poppy-seed oil, 4, 20. 



Populin, 174. 



Populus, 175. 



nigra, 245. 



pyramidalis; 245. 

 Porphyrin, 236. 

 Portlandia grandiflora, 193. 

 Potato, 185, 281, 392, 393. 

 Precipitation of colloids, 304. 

 Precipitin, 330. 



Primrose, 199. 



Primula sinensis, 253. 



Primulaceae, 183. 



Prochromogens, 261. 



Prolamin = gliadin, 324. 



Proline, 316, 328, 329 ; occurrence in 

 plant, 321. 



Prosthetic group, 325. 



Protamines, 322. 



Proteaceae, 176, 183. 



Protease, 370. 



Protective power, 291. 



Protein, animal and vegetable, 328 ; 

 colloidal properties, 308 ; composi- 

 tion, 317, 318; crystals, 301; de- 

 composition products, 281, 313 ; 

 estimation, 343 ; extraction, 330 ; 

 grains, 301 ; hydrolysis, 317; micro- 

 chemistry, 308 ; occurrence, 301, 

 329 ; optical activity, 304 ; origin of 

 fats from, 42 ; properties, 302 ; puri- 

 fication, 332 ; synthesis in plant, 



333- 



Proteins and cold, 305. 

 Proteoses, 327. 

 Protoalkaloids, 273. 

 Protocatechuic acid, 201. 

 Protoplasm, enzyme action, 367, 373. 

 Prunus Laurocerasus, 176, 178, 180. 



Prunus Padus, 176. 

 Prussic acid, see Hydrocyanic acid. 

 Pseudo-cellulose, 132. 

 Pseudo-chloroplasts, 227. 

 Pseudo-nuclein, 325. 

 Pseudo-tannin, 193, 210. 

 Psilotum, 35. 

 Pterocarpus, 201. 



saxatilis, 128. 

 Ptomaines, 274. 

 Pulvini, 195, 218. 

 Pumpkin, 321. 



oil, 20. 



Pimica granatum, 268. 



Purine, 277. 



Pyridine, 264, 266. 



Pyrocatechol = Pyrocatechin, 201, 202. 



Pyrocatechol tannins, 210. 



Pyrogallol, 204. 



tannins, 210, 211. 

 Pyrone, 247. 

 Pyroxylin, 142. 

 Pyrrole, 273. 

 Pyrrolidine, 267, 273. 



Pyrrolidine carboxylic acid = Proline, 



316. 



Pyrroline, 273. 

 Pyrrophyllin, 232, 233. 

 Pyrroporphyrin, 233. 

 Pyrus, 49, 194. 



Amygdalus, 181. 



Aucuparia, 65, 181, 235, 275, 338, 



386. 



cydonia, 181. 



Mains, 181,246, 385. 



QUEBRACHO, 211. 



colorada, 246. 

 Quercetin, 204, 242, 251. 

 Quercitannic acid, 217. 

 Quercitrin, 169, 245. 

 Quercus, 194, 195. 



Cerris, 196. 



coccinea, 195, 196. 

 Ilex, 195. 



infectoria, 212. 

 - lusitanica, 195. 



pedtmculata, 195, 196. 



Prinus, 197. 



sessiliflora, 195, 196. 



tinctorius, 169, 245. 

 Quillaia, 184. 



Quinine, 268 ; preparation from cin- 

 chona bark, 272. 

 Quince oil, 19. 

 Quinoline, 265. 



alkaloids, 268. 

 Quinovin, 60. 

 Quinovite, 60. 

 Quinovose, 53, 60. 



