INDEX 
Illustraitons are indicated by an asterisk after the page reference. 
Abele, Populus, 301% 
Abelia, Honeysuckle, 326, 336, 367- 
369; see also Lonicera 
Abies, Firs, 209, 215, 224, 228, 240, 
366, 371,372, 
Acacia, 210; Albigzia, 247, 249; 
Gleditschia, 210, 247, 249, 365; 
Robinia, 211, 247, 248, 365; Rose, 
Robinia, 248; Three-thorned, 
Gleditschia, 249, 365 
Acer, Maples, 211, 264, 364-367, 
371 
Adaptation, process of, 20-22, 198, 
200, 323 
Adirondack Forest Preserve, 187 
Adolescence, 205 
Aeration of roots, 20, 24, 28, 57-60, 
77-80, 82, 142 
Aisculus, Horse Chestnuts, 111, 210, 
250, 3645 305, 369, 370 
Ailanthus, Tree of Heaven, 210, 251,* 
256, 262 
Air, need of, 20, 21, 28; supply 
limited by pavements, etc., 33, 80; 
also 53, 82 
Albigzia, Acacia, 247, 249 
Alcoholic fermentation of cells, 58 
Alder, Almus, 61, 69, 158, 211, 371; 
Black, 272, 273 *; Italian, 272, 
74 * Japanese, 275 
Alder-leat Buckthorn, Rhamnus, 313 
Alfalfa, as fertilizer, 80 
Allspice, Calycanthus, 327, 257, 368, 
70 
Almond, Prunus, 212; Flowering, 
305; Japanese, 303,* 304 
Alnus, Alders, 211, 272-275, 371 
Althea, see Hibiscus 
Amelanchier, Shadbush or June- 
berry, III, 211, 273, 369, 379, 372 
Amorpha, False Indigo, 326, 346, 
366, 368, 369, 372, 373 
Andromeda, 326, 333, 367, 3703 see 
also Cassandra; Leucothe; Pieris; 
Zenobia 
Angelica Tree, Aralia, 210, 252, 371 
‘“‘ Annual ring,” 7, 8, 17 
Antiopa, see Spiny Elm Caterpillar 
Antiseptic dressing for wounds, 80, 
96, 124, 167; see also Bordeaux 
mixture 
Ants, 131 
Antwerp, tree guards in, 118 
Aphis, Leaf-destroying, 321 
Apple, Pirus, 68, gid4 212, 294," 
295," 296,* 297,* 298," 325, 347, 
366-369 
Apple-borers, 284 
Apple-family, attacked by  fire- 
blight, 56 
Apple-tent caterpillar, 160 
Apricot, 305 
Aralia, Angelica ‘Tree, 
Club, 210, 252, 371 
Araucaria, 223 
Arborvite, Libocedrus, 209, 215, 221; 
Thuja, 210, 215, 219, 371, 3733 
Japanese or Tom Thumb, Thuy- 
Opsts, 210, 215, 219," 371; "Pacific 
Coast or Incense cedar’ Liboce- 
drus, 221 
Arbutus, 359, 372 
Army-worms, 164 
Arrow-wood, Viburnum, 340 
Arsenate of copper, see Paris Green 
Arsenate of lead, 135-137, 162, 163, 
165 
Arsenite, formula, 160; also 156 
Ash, Fraxinus, 16, 68, 69, 85, 102, 
122, 154, 161, 210, 253, 365, 370, 
371; Black, 255; Blue, 256; Eng- 
lish, 254," 256; Flowering, 255,* 
256; Green, 255, 365; White, 255 
Asparagus-beetle, 156 
Aspen, 25, 193; lLarge-toothed, 
Populus, 301 
Assimilation, process of, 17, 18, 21 
Atmosphere, effect on growth, 63 
Azalea, 192, 326, 330, 331, 335, 366~ 
371; Flame, 330, 369; Tree, 330 
Hercules 
377 
