\ 
Index 
Light, necessity of, 18, 21; degrees 
of intensity, 25, 26; uneven dis- 
tribution, 73; as means of com- 
bating insect pests, 144; require- 
ments in grouping, 201 
Light-needing forms, 192, 215, 231, 
235, 275, 300, 306, 314 
Light requirements, scale of, 25, 26 
Ligustrum, Privet, 192, 328, 343, 
366, 369-372 
Lilac, Syringa, 329, 344, 368, 371; 
Japan Tree, 345; Persian, 345; 
Rouen 345, 370 
Lime, in soil, 62, 78; as medicine, 
123; as insecticide, 125, 163 
Lime Tree, Tzlza, 213, 318 
Lime wash, 146-148, 154, 158 
Linden, Tilia, 16, 65, 205, 213, 318; 
Silver, 320, 366 
Liquidambar, Red Gum, Sweet Gum, 
Bilsted, 212, 288, 365 
Liriodendron, Tulip Tree, White- 
wood, Yellow Poplar, 212, 288, 
305, 370 _ 
Locust, Black, Robinia, 65, 111, 154, 
. 163, 193, 211, 248, 263, 365; 
Clammy, Robinia, 211, 248; 
Honey, Gleditschia, 249, 365 
Locust-borer, 154 
London, tree guards in, 83, 118, 121 
Longevity, 201 
Lonicera, Honeysuckle, 328, 336- 
338, 366, 368-371, 373 
Lost parts, ability to replace, see 
Recuperative power 
Lowell, James Russell, quoted, 86 
Lupine, as fertilizer, 80 
McGovern nozzle, 139 
Magnesium, deficiency in soil, 62 
Magnolia, 111, 172, 212, 288-290, 
306-369 
Maidenhair Tree, 226 
Malachodendron, see Stuartia 
Mallow, Hibiscus, 327, 360, 367, 
369-372 
Mantis, see Walking-stick 
Manure, see Fertilizers 
Maple, Acer, 16, 69, 91, 102, 158- 
160, 162, 165, I7I, 205, 211, 364- 
367, 371; Ash-leaved, 266; Black, 
264; Eagle-claw, 271; English, 
269; Japanese, 270,* 271," 272; 
385 
Maple, Acer — continued 
Mediterranean, 268,* 269; Moun- 
tain, 265; Norway, 266,* 268, 
271; Pacific coast, 267; Red, 66, 
265; Rock, 60; Silver, 59, 84, 103, 
115, 265, 365; Soft, 85, 193; 
Striped, 265; Sugar, 25, 193, 264; 
Sycamore 267,* 268, 271; Tar- 
tarlan, 269,* 270; Oregon Maple. 
see Maple, Pacific coast. 
Maple-worm, see Forest tent-cater- 
pillar 
Marl, 73 
Massachusetts, gas companies of, 
70; efforts to exterminate gypsy 
moth in, 162 
Meadow-sweet, 350 
Mealy bugs, 150 
Measuring-worm, see Inchworms 
Mechanical destruction of insect 
pests in woodland parks, 195 
Mechanical injuries, in city streets, 
32, 33, 117; cause of disease, 34, 
36; results of, 74; also 59 
Mechanism of tree compared with 
system of water works, 18 
Medlar, 294 
Aelia, Chinaberry, Umbrella Tree, 
210, 260," 261 
Mengel, William, Son, N. Y., 145 
note 
Metal protector for trapping insects, 
145 
Mildews, 38, 363; see also Spot 
diseases 
Minerals, requisite for tree life, x7, 
18, 21, 28; results of deficiency of, 
19, 79; also 62 
Mist Tree, 262 
Mistletoe, 43 
Mites, 134 
Mock Orange, Philadelphus, 192, 
328, 344, 354, 379, 372, 373 
Mockernut, Hicoria, 257 
Afohrodendron, see Halesia 
Monopodial type, 203 
Moosewood, 265 
Morus, Mulberry, 212, 201 
Mosses, excessive development on 
bark, 44; relation to disease, 53 
Moth, Household, 166 
Mountain Ash, Sorbus, 56, 150, 192, 
211, 263, 264, 305, 360, 372 
