INDEX 



465 



Etiolation, 184,* 185. 328,* 354.* 

 Eucalyptus, protection of, against di-ying, 



214, 217. 317, 333, 334. 



fruit of. 320. 



Eupatorium. See Boneset. 



European Plum See Plum, European. 



Evaporation. See Soil, Evaporation from, 



and Transpiration. 

 Evening Primrose. See Primrose, Evening. 

 Evolution, 330, 441-403. 

 control of, 453. 



indicated by variation curve, 419.'*' 

 Excentric growth, 348-350.* 

 Excretions, nitrogen in, 176. 



poisonous character of, 378. 

 Experimental morphology. See Plant, 



form of. 

 Exposure, effect of, on fruit production, 



319 

 External agents, 326-361. See, also. Air, 



Food, Gravity, Heat, Light, Water, 



Wind. 

 Eye, effect of light on, 196. 



Fagopyrum. See Buckwheat. 

 Fall wood, 232,* 236.* 247. 

 Fascination, 420, 421. 

 Fats, changed to starch, 259. 



decomposition of, 381. 



emulsification of, 169, 170. 



energy from, 173. 



formation of, 170, 201. 



in eggs, 177. 



—growing region, 253. 



— seeds, 165, 177. 



—trees, 259. 



saponification of, 170, 171. 



tests for, 165, 259. 



See, also. Oil. 

 Feces contain waste nitrogen, 176. 

 Fehling's solution, preparation of. 164, 1()5. 

 Feldspar, 106. 107. 

 Fermentation by bacteria, 380. 



—Yeast, 169. 

 Ferments, 166. 



cause oxidation, 173. 



restore vitality of seeds, 44. 

 Fernow, on forestry, 245. 

 Ferns as shade plants, 344. 



Ferns, protection against drying, 213. 



rhizomes of, 277. 



soil needed by, 108. 



unrolling of leaf of, 252. 

 Fertilization, 291,* 292.* 



after effect of, 309, 360. 

 Fertilizers, 139-160. 



effect of, on fruit, 315. 



fruit production, 318. 



Fever caused by wounds, 262, 263, 388. 

 Fibrin coagulation of, 171. 



for digestion experiments, 171, 172. 

 Fibrous bundle, 198,* 199,* 224,* 225,* 226. 

 227,* 228, 230, 231,* 250,* 251, 317. 



effect of water on, 335.* 

 Ficus. See Pig, Rubber Plant. 

 Fig, flower structure of, 310. 



pollination of, 310, 311. 

 Filaree, seeds of, bury themselves, 70,* 71. 

 Filbert, absorption of water by, 7. 



openings in cover of, 9. 



path of water in cover of, 9, 24. 

 Filtration of water, 372. 

 Fire, protection against, by bark, 256. 

 Fish, preservation of, 386. 

 Fisher, on cookery, 178. 

 Five-finger. See Cinquefoil. 

 Flavor, affected by external conditions. 

 318, 319, 342. 



improvement of, by breeding, 413, 415. 

 Flax, absorption of water by, 728. 



seed-cover of, holds water, 28. 

 Flesh-forming foods, 176. 

 Fleur-de-lis. See Iris. 

 Flies carry disease, 380. 



prefer yellow, 299. 

 Flinty texture protects against animals. 



223. 

 Floods, relation of, to forests, 112. 

 Floral clock. See Clock, floral. 

 Florida, forests of, 356. 

 Flour, proteid in, 177. 



starch in, 177. 

 Flower, attraction of insects for, 297-300. 



color-contrasts in, 298. 



color of, affected by light, 347. 



double, produced by breeding, 425.* 



effect of heat on, 296, 347. 



light on, 295-298, 347, 348. 



DD 



