586 
INDEX 
. All numbers refer to pages, heavy type indicating illustrations. 
Drawing-paper, 224 
Drawers, 263, 268 
Drugs, 163; poisonous, 176 
Drupaceous, fruit, 365; nut, 376 
Drupe, 364 
Dry, cooperage, 243; fruits, 351; 
pericarp, 351, 355 
Drying oils, 295 
Duck, 230 
Dugout canoe, 247 
Dust-spore, 496, 498, 505, 511 
Dust-spore-case, 496 
Dyeing, 222 
Dyers’ Indigo Shrub, 292, 293 
Dyestuffs, 290 
Early attempts at classifying, 306; 
at describing, 312 
Ear of grain, 11 
Earth-vegetables, 35, 41 
Ebenales, Ebony Order 
Ebony Order, 491 
Ebracteate inflorescence, 362 
Ecological botany, 10 
Economic, botany, 9, 304; impor- 
tance of fungi, 504; properties 
of plants, 575 
Economics of co-operation, 468 
Egg-apparatus, 556 
Egg-cell, 514, 521, 551, 552, 556, 
557, 560 
Egg-plant, 85, 121, 124, 382 
Egg-sac members, 352 
Egg-sacs, 325, 326 
Egg-spore Alge, Evolution of, 558 
Elastic, bands, 284; gums, 999. 
280, 287; springs for dissemina- 
tion, 560; webbing, 283 
Elater, 517, 520, 526, 641, 543 
Elder, 196, 197, 202, 208 
Electric apparatus, 288 
Elettaria cardamomum, Carda- 
moms 
Elm, 259; American, 259; bark, 
163; English, 166; wood, 256, 
259 
Elm Family: 398; American elm, 
259; English elm, 167 
Elm-leaved Linden, 264 
Embryo, 29, 48, 316, 317, 318, 351, 
352, 514, 553, 556; bent, 363; 
curved, 362; dicotyledonous, 
386; monocotyledonous, 
uncoiled, 355; of fern, 538 
Embryo, parts of; cotyledon, 46, 
48; plumule, 48; radicle, 48; 
scutellum, 388; seed-bud, 48; 
seed-leaf, 46, 48; seed-root, 48 
Embryos, 547 
Embryo-sac, 551, 556 
Endogenous stems, 387 
Endosperm, 551 
Endospore, 478 
Energy, in food, 114; measures of, 
115; of vegetable foods, 116 
Engler and Prantl’s classification, 
394 
English, elm, 165, 167; oak, 268; 
walnut, 261, 296 
Environment, 431 
Enzyme, 32, 494 
Epidermis, 254, 530, 538, 640, 542 
Epicalyx, 364 
Epigynous flower, 365 ° 
Epiphyte, 508 
3. Speanria Scouring-rush Fam- 
ily 
Equisetine, Scouring-rushes 
Equisetum arvense, Scouring-rush 
Erasers, 284 
Erect Silky Clematis, 328-336, 
337, 338-356 
Ericacee, Heath Family 
Ericales, Heath Order 
Erysibe communis, Powdery-mil- 
dew 
Erythroxylacee, Coca Family 
Erythroxylon Coca, Coca 
Essence of life, 568, 569 
Essences, 128, 146 
Essential organs of flower, 13, 43, 
319 
Ethers, 159 
Euphorbiacee, Spurge Family 
Euphorbia Lathyris, Caper Spurge 
marginata, Snow-on-the-moun- 
tain 
388; 
European, beech, 268; grape, 88, 
93, 121, 124; larch, 271; rasp- 
berry, 91 
Evening-primrose, 457 
Evening-primrose Family, 400 
Evolution, 433; by choice, 461, 
464; in general, 464; of clematis, 
