628 



INDEX 



Endosperm, 400, 430 

 Endosperm-nucleus, 440 

 Endospores, 99 

 Endothia parasitica, 296 

 Environment, 125 



factors of, 125 



fitness for, 513 

 Enzymes, 79, 86, 94, 100 

 Epidermis, 31 

 Epiphytes, 326 

 Epiphytism, 325, 327 

 Equisetales, 368, 618 

 Equisetum, 368, 375, 376, 431 



arvense, 368, 370, 371, 374 



debile, 368 



fluviatile, 369 



giganteum, 368 



palustre, 368, 373 



pratense, 368, 371 

 Ergot, 293, 29s 

 Ericaceae, 473 

 Eriopus remotifolius, 226 

 Erythronium americanum, 434, 



437, 439, 455 



albidum, 437 

 Etiolation, 136 

 Eugenics, 560, 566 

 Eupatorium perfoliatum, 486 

 Euthenics, 560 

 Evening-primrose, 471, 532, 534 



Lamarck's, 535 



giant, 536 

 Evetria buoliana, 301 

 Evolution and classification, 539 



early antagonism to, 510 



experimental, 520, 535 



inorganic, 503 



method of, 505 



of plants, 569 



organic, 504 

 Excreta, theory of toxic, 92 

 Exosmosis, 58 



Extinction, factors of, 589 



False beech-drops, 324, 339 



Fascicles, 415 



Fats, 71, 84 



Fawn-lily, 434 



Femaleness, maleness and, 353 



Fermentation, 102 



active agent in, 99 



alcoholic, 95, 97 



importance of, 94 



products of, 96 



relation of to our daily lives, 

 102 



respiration and, 112 



significance of, loi 

 Ferments, 79 

 Ferns, 348 



Boston, 528 



eusporangiate, 178, 372 



leptosporangiate, 157 



shield, 158 



walking, 162, 348 

 Fertilization, 170, 172, 180 



double, 442 

 Fertilization-membrane, 172 

 Fever, typhoid, 310 

 Ficus elastica, 64, 66 

 Filament, 436 



Fittest, survival of, 191, 515 

 Flowers and insects, 343 

 Flowers, perfect and imperfect, 447 

 Foliage-leaf, types of, 156 

 Fomes applanatus, 303 

 Food elements, source of, 72 

 Foods, kinds of, 71 

 Foot, 174 



Forests, world's first, 610 

 Fossil, what is a, 578 



record, gaps in the, 587 



