690 



INDEX. 



Dutrocbet 



on temperature of plants, 314 

 on temperature of spadix, 308, 310 

 on transmission of stimulus in 

 Mimosa, 583, 586 

 on transpiration-current, 97 

 on twining of climbing stems, 509, 



Dworzak, on chlorine in food, 136 



Echinocystis lobata, tendrils of, 486, 490 

 Ectocarpus, conjugation of (Fig. 66), 



608 



Ectoplasm, 13, 23 

 Eder, on absorption of water by leaves, 



66 

 Edwards, on effect of high temperature 



on seeds, 280 



Egg-apparatus ( Fi S- 7o)> 615 

 Ehrenberg, on luminous Algae, 317 

 Electricity in plants, 319; effect on 



growth, 410 

 Elfving 



on action of gravity at different 

 angles, 460 



on formation of etiolin, 264 

 on galvanotropism, 474 

 on influence of gravity on rate of 

 growth, 409, 466 



on plagiotropism of rhizomes, 501 

 on transpiration-current, 98 

 Embryo-sac, germination of, 641 

 Emmerling 



on amides in leaves, 150 

 on formation of nitrogenous organic 

 substances in plants, 149 

 Emulsin, analysis of, 189 

 Enchylema, 25 



Endophyllum, life-history of, 634 

 Endoplasm, 13, 23 

 Endosmotic current, 40 

 Endosperm, 170 

 Endospore, 600 



Energy in plants; accumulation of, 289; 

 dependence of, on destructive meta- 

 bolism, 290; dissipation of, 290; evo- 

 lution of, as electricity, 324 ; as growth, 

 291 ; as heat, 302 ; as movement, 

 296; expenditure of, 288; supply of 

 in plants with, and without chloro- 

 phyll, 251, 252 

 Engelmann 



on Bacteria as a test for oxygen 

 (Fig- 35), 256 



on Bacterium photometriciim, 298, 

 523 



on contractile vacuoles, 522 

 on colouring matters of Algse, 256 

 on decomposition of carbon dioxide 

 by light, 258 



Engelmann 



on etiolin, 152 



on exhalation of oxygen by chloro- 

 phyll-corpuscles, 153 



on movements of Diatoms, 520 

 on movements of Schizomycetes in 



chlorophyll-function, 



free oxygen, 255 

 156 



on theory 



Enteromorpha mesenterica, spiral growth 



of, 512 



Entomophthoreae, conjugation of, 617 

 Epicotyl, curvatures of, 367 

 Epinasty, 366 

 Epiphytes, 459 

 Epiplasm, 638 

 Erdniann 



on glycolignose, 2 1 



on lignose, 234 



Eremascus albus, reproduction of, 620 

 Eriksson 



evolution of heat by yeast, 306, 



307 



on temperature of flower seeds, 305 

 Erlenmeyer 



on decomposition of carbon dioxide, 



144 



on formation of acids, 227 

 Errera, on glycogen in Fungi, 171 

 Erythrophyll, 241, 266 

 Ethereal oils, 236 

 Ethers, 237 



Etiolated leaves, structure of, 384 

 Etiolated shoots, structure of, 386 

 Etiolation, 152, 240 

 Etiolin, 152; formation of, 240, 264 

 Eugster, on xanthin, 221 

 Euphorbia splendens, laticiferous cell 



(Fig. 24), 167 

 Evolution of heat, 303 

 Evolution of plants, 680 

 Excreta of plants, 4, 326 

 Excretion of ferments, 247 ; of nectar, 



246; of salts, 246 

 Exosmotic current, 40 

 Exospore, 600 



Extensibility of growing organs, 342 

 External conditions; effect on growth, 



496; on movement, 522 



Fafore, on luminosity, 317 



Fagus, calcium oxalate in, 22 



Faivre, on distribution of organic sub- 

 stance in plants by means of sieve-tubes 

 and laticiferous tissue, 169 



Falkenberg, on reproduction of Cutleria, 

 609 



Famintzin 



on decomposition of carbon dioxide 

 in artificial light, 258 



