480 



INDEX 



Proteids, in animals, 171, 172, 176. 



Beans, 177. 



bran, 178. 



dietetics, 176. 



eggs, 176, 177. 



flour, 177. 



fruits, 314. 



growing region, 253-259. 



Peas, 177. 



seeds, 165, 166, 314, 437. 

 - Wheat, 177, 178. 



path of, in stem, 227* 231,* 232,* 236,* 254- 

 257. 



tests for, 165, 166. 

 Protoplasm, 65,* 66, 291.* 

 Prune. See Plum. 

 Prune, French, 411,* 415, 416.* 



Giant, 410, 411. 



Stoneless, 415. 416,* 417. 



Sugar, 411.* 



Prunier, sans Noyau, 415, 416.* 

 Pruning, 263, 346. 



correlation in, 359. 



of roots to increase fruit-production, 319. 



self-, 261. 

 Prunus. See Almond, Apricot, Cherry, 



Peach, Plum and Prune. 

 Ptyalin, 167. 

 Puccinia. See Rust. 

 Pumpkin, fruit of, 317. 



path of proteid in, 254. 



tendrils of, 272. 



Purslane, protection of, from animals, 223. 

 Pusley. See Purslane. 

 Putrefaction, 380. 

 Pyrus. See Apple, Pear. 



Quaker Bonnets. See Houstonia. 

 Quaker Ladies. See Houstonia. 

 Quartz, 105, 107. 

 Quercus. See Oak. 



Quince, absorption of water by seed of, 7, 

 28. 



branches of, twisted in layering, 314. 



seed-cover of, holds water, 28. 



Radish, absorption of water by seed of, 7, 



28. 

 germination of, 47. 



Ra lish, relation of, to light, 265. 



root-hairs of, 100,* 101,* 121. 



seed-cover of, holds water, 29. 

 Ragweed, protection of, against animals, 



223. 

 Rain buries seeds, 69. 



percolation of, in soil, 111-118. 



puddles soil, 129. 

 Ranunculus. See Buttercup. 

 Rape, 314. 



Raphanus. See Radish. 

 Raspberry, acid in fruit of, 315. 



climbing of, 270. 



Rattlesnake Plantain. See Plantain, Rat- 

 tlesnake. 



Raw Food. See Food, Raw. 

 Red rays cut out by cupra ammonia, 265. 

 Regeneration dependent on oxygen, 281,* 

 282. 



in stem, 257. 



of root, 86. 



stem, 79.* 

 Reproduction by seed, 291,* 292.* 



- spores, 362,* 365, 393, 394,* 395,* 396,* 



397,* 398,* 399,* 401, 402,* 403,* 404.* 



vegetative parts, 433. 

 Reseda. See Mignonette. 



Resins absent from water-plants, 339. 



protect against drying, 214, 334. 

 Resistance to disease, 440. 

 Respiration denned, 175. 



increased by wounds, 388. 



measurement of, 34,* 175. 



of animals, 35, 176, 194. 



flowers, 287. 



fruits, 317. 



leaves, 194, 195. 



- Moulds, 394. 



- seeds, 33, 34,* 35, 3j.* 



Yeast, 390. 

 Reversion, 420, 449,* 450. 

 Rhamnus, Rust of, 405. 

 Rheum. See Rhubarb. 

 Rhizomes, function of, 277. 



propagation by, 433. 



resemble roots, 277. 



storage of food in, 260. 

 Rhizopus nigricans, 391. 

 Rhubarb, bleaching of, 346. 



