INDEX 



467 



Fruits, fibrous bundle in, 317. 

 flavor of, increased by dryness and 



warmth, 315. 

 food needed by, 312-316. 

 improvement of, by breeding, 409-411,* 



412, 413,* 414,* 415,* 416,* 417. 

 oil in, 314. 

 path of food to, 313. 



water in, 24. 



pectin compounds in, 315. 



production of, methods of increasing, 318, 



319, 342, 



protection of, 330. 

 respiration of, 317. 

 ripening of, 315, 316, 324, 325. 

 starch in, 314. 



struggle for existence of, 312. 

 stomata of, 317. 



succulent, require more water, 320. 

 sugar in, 314. 411. 



method of increasing, 315. 

 thinning of, 312. 

 transpiration of, 317. 



water needed by, 316, 317. 

 work of, 312-325. 

 Yeasts on, 390. 

 Fruit trees, buds on roots of, 249. 



protection against drying, 213. 

 Fuel value of foods, 173, 196. 

 Fumigation of plants, 215. 



Function determines structure, 179, 185, 



186.* 



Fungi, 361-408. 

 destroyed by lime, 152. 



rotation of crops, 160. 

 on roots of trees, 150. 

 protection against by bark, 256. 

 callus, 263. 



Furrow-slice, 126,* 127. 



Gaillardia, cross-pollination of, 303.* 



flower structure of, 303.* 

 Galloway, on freezing, 354. 



soil, 129. 



plant diseases, 407. 

 Galls, 359. 



Gardner, acknowledgment to, x. 

 Gardner on plant breeding, 441. 

 Gases, fumigation with, 215. 



Gases. See, also, Air, Carbon dioxide. 



Nitrogen, Oxygen. 

 Gasolene, test for fats and oils, 165. 

 Gastric juice, 171. 

 Gaye, on soil, 109. 

 Gelatin for bacterial cultures, 368, 369. 



mould cultures, 395 

 Generation, spontaneous, 365. 

 Geotropism, 88,* 89,* 90, 91,* 92, 93,* 94, 95. 



98,* 99, 264, 308. 

 Geranium. See Herb Robert. 

 Geranium, air passages in, 280. 

 behaviour of seeds of, 71. 

 flower of, position of, 307. 

 stem of, 224. 



Geranium, Ivy, effect of cold on chloro- 

 phyll, 354. 



leaf mosaic of, 219. 

 Germ, 1,* 2,* 3,* 4,* 20*. 56, 58.* 



contact of, with cover, 20. 



osmotic action of, 17. 



See, also, Seed. 

 Germicide, 364. 

 Germination. See Seed. 

 Giant Prune. See Prune, Giant. 

 Gibson, on pollination, 307. 

 Girder, 266. 

 Girdling increases fruit production, 257, 



318. 

 Gladiolus, leaf structure of, 201. 



protection of, against drying, 217. 

 Glauber's salt in soil, 158. 

 Gleditschia. See Honey Locust. 

 Glucose. See Sugar. 

 Gluten, 177, 178, 437. 

 Glycerine for shrinking cells, 390. 



a product of saponification, 170, 171. 

 Gnaphalium. See Immortelle. 

 Goodyera. See Plantain, Rattlesnake. 

 Gophers bury seeds, 69. 

 Gorse, 331, 343.* 



effect of saturated atmosphere on, 341, 



343.* 



Grafting, 248, 249, 433. 

 Grains, chaff of, holds water, 29. 



conveyance of food to seeds of, 313, 

 314. 



growth at nodes of, 250. 



proteid in, 177. 



