382 
Fibrils, 7, 99, 168; sec also Root 
system 
Fields of distribution, 21, 22; see also 
Adaptation, process of 
Fir, Abies, 16, 26, 166, 193, 203, 200, 
215, 224, 228, 240, 366, 371, 372; 
see also Douglas Fir; Gingko 
Fire-blight, 56 
“Fire-pine,” 239 
‘Five, five, fifty” formula, 125; see 
also “‘Two, two, fifty” 
Flooding, dangers of, 20 
Flowers, pruning for, 110; varying 
shapes, 324, 325; types, 325; also 
10 
Foliage, effect of light upon, 18, Io, 
25; dependent on root system, 
18, 27; gives first indication of 
disease, 51; approach of winter, 
65; poisoned by sulphurous acid, 
69; effects of leakage of illumina- 
ting gas, 70; development by 
pruning, 76; ornamental trees, 
207; also 200; sce also Crown; 
Defoliation; Leaves 
Fontainebleau, primitive tree guards 
in, 117 
Food materials, 14, 17, assimilation, 
17; elaboration, 19, 20, 26, 96; 
increased by trimming, 61; growth 
of callus, 97 
Forest, Pleasure, versus Pleasure 
Park, 188 
Forest Park, St. Louis, 186 
Forest planting, 170 
Forest tent-caterpillar, 159 
Forestry as an art, 185, 187 
Form (in trimming), types, 103; A. 
Des Cars’s book on, 105 note; 
rules 107; corected in trans- 
planting, 169; affected by soil, 
205; inheritance in, 208; see also 
Outlines 
Forsythia, Golden Bell, 327, 342, 
368, 369 
Four winged Silver Bell Tree, 355 
France, vineyards of, 148 
Frankfurt, tree guards in, 
120 
Fraxinus, Ash, 16, 68, 69, 85, 102, 
122, 154, 161, 210, 253, 254,* 
255,* 250, 365, 370, 371 
Fringe Tree, Chionanthus, 211, 281 
118, 
Index 
Fringed Myrtle, Lagerstremia, 328, 
362, 368, 370 
Frost, differing effects, 64-66; pre 
ventive, 67; worst form of injury, 
67; enemy to insect pests, 129; 
also 215 
Frost-heaving, 177 
Frost splits, 68 
Fruit and fruit trees, 60, 84, 150, 
207, 325 
Fungi, entering through dead twigs, 
30; cause of disease, 32; result of 
mechanical injuries, 32, 36, 42; 
attacks affected by season, 34; 
life history, 37; various forms, 38, 
40; spraying for, 55; frost injuries, 
67; fundamental principle in com- 
bating, 124, 125; also 7, 15, 86, 
89, 96; see also Canker; Parasites; 
Root Rot; Saprophytes 
Fungicides, see Bordeaux mixture; 
Disinfectants 
Fungus diseases, 197, 201, 206, 215, 
229, 250, 278, 279, 281, 285, 286, 
294, 307 
Galls, 46, 48; see also Insect pests 
Gardenia, Cape Jessamine, 327, 360, 
366, 370 
Garland Flower, Daphne, 339 
Gas, Illuminating, effects of leakage, 
33, 70 
Gasoline torch, 144 note 
Geometridx, see Inchworms 
Germany, forestry in, 54, 187; laws 
against insect pests, 132 
Ghent Azalea, 331 
“Giant Tree,” 288 
Gingko, 209, 213, 226 
Girdling, 19 note 
Gleditschia, Honey Locust, 210, 247, 
249, 365 
Globular outline, 204 
Goethe, Johann Wolfgang, quoted, 
185 
Gold Flower, Hypericum, 361 
Golden Bell, Forsythia, 327, 342, 
368, 369 
Golden Chain, Cytisus, 259,* 261 
Goldenrod, 154. 
Gooseberry, Fuschia-flowered, 363 
‘“‘Goumi,” The, 342 
Grading, improper forms of, 80, 81 
