526 



INDEX 



Phajus, 251, 309. 



Phaseolus, 71, 268, 269, 482, 512. 



— lunatus, 254, 257, 260. 



— multiflorus , 269. 



— vulgaris, 481. 

 Phase test, 317, 327. 



Phellogen (cork cambium), 232, 233. 



Phellonic acid, 231, 233. 



Phenylalanine, 444, 449, 452. 



Phenyletliylalcohol, 452. 



Phlein, 179. 



Phlernn pratense, 148, 179. 



Phlobaphenes, 293, 294, 297, 298, 



351- 



Phloionic acid, 231. 



Phloretin, 282, 300. 



Phloridzin, 282, 300. 



Phloroglucinol, 278, 282. 



Phoenix dactylifera, 185, 212, 457. 



Phosphate, role of, in yeast fermen- 

 tation, 494, 497. 



Phospholipins, 53. 



Phosphoproteins, 427. 



Phycocyanin, 356. 



Phycoerythrin, 353 ; preparation, 

 354 ; reactions, 354. 



Phycophsein, 356. 



Phyllins, 317. 



Phyllophora rubens, 314. 



Phyllophyllin, 319. 



Phytase, 459. 



Phytelephas, 181. 



— macrocarpa, 106. 



Phytin, 72, 420 ; occurrence, 73. 

 Phytol, 322. 

 Phytoplankton, 513. 

 Phytosterols, 48, 70, 263. 

 Picea, 3. 



— excelsa, 301. 

 Pineapple, 109. 



Pinus, 56, 267, 268, 273, 311, 435. 



— cembra, 373. 

 Piperidine, 360, 362. 

 Pisang wax, 45. 

 Pisum, 71, 206, 402. 



— sativum, 310, 425, 450. 

 Plantago, 201. 



■ — lanceolata, 249. 



Plant albumins, difference from 



animal albumins, 425. 

 Plasma membrane, 57, 415. 

 Plasmodia, 453. 

 Polarimeter, 143. 

 Polarimetric method of estimating 



sugars, 141. 

 Polygonum compactum, 350, 351. 



— tinctoriimi, 251. 

 Polypeptides, 429, 447. 

 Polyporus, 49. 



■ — ■ betulinus, 173. 

 Polysaccharides, 77, 145. 

 Pomegranate tannin, 293. 

 Pontedevia caudal uni, 148. 



Poppy seed oil, 32. 

 Populin, 244. 

 Populus, 3, 115. 



— nigra, 333. 

 Porphyrins, 317. 

 Portlandia grandiflora, 266. 

 Potato, 58, 73, 89, 115. 



— cork, 234. 

 Potentilla tormentilla, 301. 

 Potomageton natans, 330. 

 Precipitin, 432. 

 Primeverose, 121, 239. 

 Primula, 268. 



— officinalis, 121. 



— pulverulenia, 333. 



— sinensis, 352. 

 Primulaceae, 121. 

 Prolamins, 421, 423, 426. 

 Proline, 426, 444, 450. 

 Prosopis i uti flora, 92. 

 Prosthetic group, 427. 

 Protamines, 424. 

 Protease, 458, 460, 481, 484. 

 Protective action of colloids, 393. 

 Proteins, chemical properties of, 



438 ; decomposition products 

 of, 441 ; extraction, 422 ; iso- 

 electricpoint, 436; microchemi- 

 cal reactions, 440 ; physical 

 properties, 433 ; precipitation, 

 433, 434 ; physiological signifi- 

 cance of solubilities of, 434. 



— in plant, effect of cold on, 435. 



— of alfalfa leaf, 421. 



— — cell sap, 421. 



leaf, 420, 421. 



Proteolytic enzymes, 481, 483, 485. 

 Proteoses, 421, 429. 

 Protoalkaloids, 369. 

 Protocatechuic acid, 279, 280, 500. 

 Protopectin, 183, 193. 

 Protophyta, 76. 



Protoplasm, chemical composition 

 of, 453 ; colloidal nature of, 413 ; 

 influence of electrolytes on, 417. 



Prulaurasin, 256, 259. 



Prunasin, 259. 



Primus, 253. 



— padus laurocerasus, 255. 

 Pseudocellulose, 206. 

 Pseudochloroplasts, 30. 

 Pseudonuclein, 427. 

 Pseudotsuga Douglasii, 124. 

 Psilotum, 34. 

 Pterocarpus, 301. 



— ■ saxatilis, 192. 

 Ptomaines, 371. 

 Pulse, 70. 



Pumpkin seeds, 449. 

 Punica gvanatum, 363. 

 Purpurogallin number, 504. 

 Pyridine, 360. 



— alkaloids, 362. 



