378 
Baccharis, Groundsel, 37, 326, 356, 
371-373. 
Bacterial disease, 56, 89 
Bag-worm, 161 
Baiting for insect pests, 144, 195 
Balm of Gilead, Populus, 212, 
301 
Banding trees for trapping insects, 
145, 159, 162, 105 
Barberry, Berberis, 37, 326, 356, 357, 
366-368, 370-372 
Bark, method of renewal, 7, 17; 
use in life of tree, 8; protection, 
34; longitudinal cut to relieve 
water-pressure, 59; also 203 
Bark-beetles, 45, 48, 55, 128, 146- 
148, 152, 154 
““Bark-bound,” 8 
Bark-lice, 150 
Basswood, T7lza, 58, 68, 85, 154, 
159, 161, 163, 171, 213, 318, 364, 
365, 371; Downy-leaved, 319; 
White, 319 
Bean Tree, Cafalpa, 211, 278 
Beech, Carpinus, Blue, 192, 211, 
277: Water, 211, 277; Fagus, 16, 
25, 59, 67, 68, 102, 122, 154, 172, 
192, 193, 212, 285, 372; Copper, 
203, 286; American, 286; Euro- 
pean, 286%; Purple-leaved, see 
Beech, Copper 
Beecher, Henry Ward, quoted, 275 
Beetle-borers, 152-158; see also 
Insect pests 
Berberis, Barberry, 37, 326, 356, 357, 
366-368, 370-372 
Berlin, tree guards in, 83, 118, 
L2I 
Betula, Birches, 211, 229, 275, 276, 
366, 367, 371-373 
Bilsted, Liguidambar, 212, 288, 365 
Biota, Arborvite or White Cedar, 
215, 218 
Birch, 16, 25, 68, 91, 158, 163, 211, 
275, 370, 372, 373; Cherry, 276; 
European, 275, 367, 371; White, 
193, 229, 276, 366; Yellow, 193, 
276; Black, see Birch, Cherry; 
Gray, see Birch, Yellow; Sweet, 
seé Birch, Cherry 
Birds, Insectivorous, 128, 130; see 
also English Sparrow 
Bisulphide, 163 
Index 
Bitternut, Hicoria, 257 
Bitter-sweet, Celastrus, 327, 358, 
368, 373 
Black Elder, see Elderberry 
Black-knot, 38, 125 
Bladder Senna, Colutea, 327, 346, 
367-369 
Bleeding Heart, 324 
Blue stone, 125, 126 
Bole, branchless, 14, 182; breathing 
pores, 20; improper treatment of, 
81; mutilations, 112; also 5 
Bonn, tree guards in, 118 
Bordeaux mixture, 112, I13, 125, 
. 127, 128, 135; see also Antiseptic 
dressing; Insecticides 
Bordeaux nozzle, 139 
Borers, 49, 141, 146, 147, 153; see 
also Insect pests 
Boston, Metropolitan Park System, 
186, 194; also 249 
Bowker Fertilizer Company, 135 
note; 145 nole 
Box, Buxus, 60, 211, 276, 343, 366, 
370-372; Minorca or Japanese, 
277 
Box-elder, Acer, 161, 266 
Bran, Poisoned, 164 
Branch system, skeleton of, 203 
Branches, 11-14, 18, 20; see also 
Crown 
Branchless boles, 14, 182 
Branchlets, 65, 83, 107, 108; see also 
Bole; Branches 
Breathing pores, 20, 44 
Briarwood pipes, material for, 329 
Bridal-wreath, Spirea, 351 
Bridging, 113 
Broad-leaved trees, 104, 203, 207, 
209-211, 220, 247, 264; also List, 
p. 366 
Bronx Park, N. Y. City, 186 
Broom, Cytisus, 327, 346, 368, 370- 
372 
Brooklyn, N. Y., English Sparrows 
introduced into, 130; also 140, 141 
Brussels, old elms in, 148 
Buch Ham, Symplocos, 329, 355, 
3 
Buckeye, isculus, 159, 250, 3653 
see also Horse Chestnut 
Buckthorn, Rhamnus, 213, 313, 314, 
368, 369, 372 
