486 



GLOSSAEIAL INDEX. 



Dermatogen (Sepjtn [gen. SepjiHTos], skin ; 

 yevvah}, I produce), 105, 118, 155. 



Desmids, movements of, 398. 



Desmodium gyrans, 413. 



Dextrin (CoHuOs), 51, 358. 



Dextrose. See Grape-sugar, 



Diageotropic organs (Sii, through; v5, 

 the earth; rpdiro?, a turn), 392. 



Diaphragms, for controlling the illumi- 

 nation of microscopic objects, 2; of air- 

 passages, 100. 



Diastase (fiiao-Tatrte, separation), 468. 



Diatoms, movements of, 398. 



Dicotyledons (Si's, twice; /coti/AijSwi', a 

 cup-shaped hollow), distribution of 

 mechanical elements in, 193; secon- 

 dary structure of stems of, 136 ; stems 

 of, 129. 



Diffusion, laws of, 222; of liquids, 221; 

 of gases, 301. 



Dionsea muscipula, 342; related to Dro- 

 sera, 351. 



Dipsacus, 350. 



Discoid markings (SiVno!, a round plate; 

 eKos, form), 30, 82. 



Diseases of plants, 470. 



Dissecting instruments, 2. 



Distances to which roots extend, 236. 



Division of labor in the plant, 185. 



Double-staining, 19. 



Drainage of soils, amount of solid mat- 

 ter dissolved in water from, 244; rela- 

 tions of rain-fall to, 242. 



Drawing of preparations, 4. 



Drawn slioots, 388. 



Drosera rotundifolia, 339; related to 

 Diiinsea, 351. 



Drosophyllum, 345. 



Dry mounts, 20. 



Ducts. See Vessels. 



Duramen (durare, to harden).. See 

 Heartwood. 



Dwelling-houses, plants in, 368. 



Eaeth-worjis, influence of, upon the 

 character of the soil, 239. 



Egg-apparatus, 435. 



Electricity, eifect of, in forming nitrogen 

 compounds in the atmosphere, 332; 

 relations of protoplasm to, 207. 



Electric light, effect of, upon assimila- 

 tion, 316. 



Embryo, life of the, 459. 



Embryo-aac, 434. 



Enchylema (eyx™, I pour in), 198. 



Endodermis (Si'Soi', within; Sepjio, the 

 skin), 63, 104, 110, 120. 



Endogenous stems (ei'So", within ; ■yevpia), 

 I produce), 129. 



Endopleura (iviav, within; irAeupa, the 

 side), 178. 



Endosmose {ifSov, wiihin; iltrnii!, a 

 thrusting), 229. 



Endosperm (iy&av, within ; o-irepfia, seed), 

 437. 



Energy, 307, 322; supply of, for work, 

 354." 



Eosin (C2„H8Br406), 19. 



Epiblema (eiri'^Aij^ia, a cloak), 230. 



Epicotj-l (eiri, upon; KOT-iiAij, a cup), 403. 



Epidermal spines, 69. 



Epidermal system, 102. 



Epidermis (■;"•', upon; Sepun, the skin), 

 58, 64; cells of, 65; diffusion of gases 

 through, 302; multiple, 67; of the 

 flower, 170; of the leaf, 161; of the 

 ovary, 172; of the stem, 119; waxy 

 coatings upon the, 66. 



Epinastic curvature (eiri, upon; i-airri)!, 

 pressed close), 408. 



Epiphvtes («<"', upon; (fivrw, a plant), 

 362." 



Episperm (ei"', upon; o^rwa, seed), 178. 



Epistrophe (jk-nunpo^ii), a turning about, 

 399. 



Epithelium of air-spaces (eiri, upon ; 6>i^^. 

 nipple), 101. 



Equilibrium of water in the cell, 258. 



Equisetum {equus, a horse; meta \jieta\, 

 hair), epidermis of, 154; stem of, 154. 



Erythrophyll (epuflpos, red; i)>uAAoy, leaf), 

 291, n. ; 297. 



Ether (C«H,„0), effect of, upon proto- 

 plasmic movements, 211; a solvent 

 for fats, 12. 



Ether (of space), 306. 



Ethereal oils, 362. 



Etiolation, 288, 291, 295, 388. 



Etiolin„291; spectrum of, 296. 



Evaporation, compared with transpira- 

 tion, 275; from an animal membrane, 

 275; from soils, 241; from the surface 

 of a plant, 257; relation of growth 

 to, 271, K. ; relation of rain-fall to, 

 242. 



Evergreen leaves, 164 ; changes of chlo- 

 rophyll granules in, at autumn, 298. 



Exine. iSee Extine. 



Exogenous stems (ff", outside; ttwia, 

 I produce), 129. 



Exosmoae (tfu, outside ; <i<r/»(it, a thrust- 

 ing), 229. 



