486 



GLOSS A RIAL INDEX. 



Dermatogen (Sep^a [gen. Se'p/Aaros], skin; 

 yetWu), I produce), 105, 118, 155. 



Desmids, movements of, 398. 



Desmodium gyrans, 413. 



Dextrin (C 6 Hio0 5 ), 51, 358. 



Dextrose. See Grape-sugar. 



Diageotropic organs (Sia, through ; yr), 

 the earth; Tpdn-os, a turn), 392. 



Diaphragms, for controlling the illumi- 

 nation of microscopic objects, 2; of air- 

 passages, 100. 



Diastase (Siao-rao-is, separation), 408. 



Diatoms, movements of, 398. 



Dicotyledons (Si's, twice; KOTV^UV, 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. 



Dionaea muscipula, 342; related to Dro- 

 sera, 351. 



Dipsacus, 350. 



Discoid markings (Sio-xos, a round plate; 

 eISo5, form), 30, 82. 



Diseases of plants, 470. 



Dissecting instruments, 2. 



Distances to which roots extend, 235. 



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 shoots, 388. 



Drosera rotundifolia, 339; related to 

 Dionaea, 351. 



Drosophyllum, 345. 



Dry mounts, 20. 



Ducts. See Vessels. 



Duramen (durare, to harden). See 

 Heart wood. 



Dwelling-houses, plants in, 368. 



EARTH-WORMS, influence of, upon the 

 character of the soil, 239. 



Egg-apparatus, 435. 



Electricity, effect 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-sac, 434. 



Enchylema (eyx w , I pour in), 198. 



Endodermis (evSov, within; Sep^a, the 



skin), 63, 104, 110, 120. 

 Endogenous stems (evSov, within ; yevvau, 



I produce), 129. 

 Endopleura (eVSof, within ; TrAevpa, the 



side), 178. 

 Endosmose (e^Sov, within; a>o-ju.6?, a 



thrusting), 229. 

 Endosperm (eVSor, within; o-Tre'p/xa, seed), 



437. 

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



354.' 



Eosin (CjoHgBr^), 19. 

 Epiblema (en-i'/SAr^a, a cloak), 230. 

 Epicotyl (en-i, upon ; KOTUATJ, a cup), 403. 

 Epidermal spines, 69. 

 Epidermal system, 102, 

 Epidermis (e^', upon; Sep^a, 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 (en-i, upon; ycurrd?, 



pressed close), 408. 

 Epiphytes (en-i, upon; </>VTO>, a plant), 



352.' 



Episperm ( 

 Epistrophe 



399. 

 Epithelium of air-spaces 



nipple), 101. 



Equilibrium of water in the cell, 258. 

 Eqnisetum (equus, a horse; set eta [seta], 



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

 Erythrophyll (epvOpo?, red; ^vAAoi', leaf), 



291, n. ; *297. 

 Ether (C 4 H 10 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, n.; relation of rain-fall to, 



242. 

 Evergreen leaves, 164 ; changes of chlo- 



rophyll granules in, at autumn, 298. 

 Exine. See Extine. 

 Exogenous stems (w, outside; yewdia, 



I produce), 129. 

 Exosmose ('>, outside ; wovtxds, a thrust- 



ing), 229. 



upon; o-Tre'p/xa, seed), 178. 

 r?), a turning about, 



upon ; 



