486 



GLOSSARIAL INDEX. 



Dermatogen (fiep^a [gen. PMT<K], skin; 

 ycKvaw, I produce), 705, 118, 155. 



Desmids, movements of, 398. 



Desmodium gyrans, 413. 



Dextrin (CoH.'oO,,), 51, 358. 



Dextrose. See Grape-sugar. 



Diageotropic organs (S"i, through; y>?, 

 the earth; rpoiro*, a turn), 392. 



Diaphragms, for controlling the illumi- 

 nation of microscopic objects, 2; of air- 

 passages, 100. 



Diastase (iia<rra<rif, separation), 468. 



Diatoms, movements of, 398. 



Dicotyledons (to, twice; oTvAij&ii-, a 

 cup-shaped hollow), distribution of 

 mechanical elements in, 193; secon- 

 dary structure of steins 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 (Ji'o-xot, a round plate; 

 ttt<K, 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 soiU, amount of solid mat- 

 tt-r 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 

 Heartwood . 



Dwelling-houses, plants in, 868. 



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, 469. 



Embryo-sac, 434. 



Enchylema (iy\*, I pour in), 198. 



Endodermis (ivtoi; within; Upfio, the 

 skin), 63, 104, 110, 120. 



Endogenous stems (iv6ov, within ; ytwau, 

 I produce), 129. 



Endopleura (iv&ov, within; wAevpo, the 

 side), 178. 



Endosmose (iv&ov, within; wo>6?, a 

 thrusting), 229. 



Endosperm (ev&ov, within; viripna., seed), 

 437. 



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

 354.' 



Eosin (CH,Br 4 O s ), 19. 



Epiblema (iiri/SA W a, a cloak), 230. 



Epicotyl (i, upon ; KOTVA>J, a cup), 403. 



Epidermal spines, 69. 



Epidermal system, 102. 



Epidermis ("', 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 ('', upon; vaarot, 

 pressed close), 408. 



Epiphytes (', upon; 4>vr6v, a plant), 

 352." 



Episperm (', upon; <rirp/aia, seed), 178. 



Epistrophe (ttriorpo^jj), a turning about, 

 399. 



Epithelium of air-spaces (, upon ; *>)A>j, 

 nipple), 101. 



Equilibrium of water in the cell, 258. 



Equisetum (equus, a horse; saeta [i/a], 

 hair), epidermis of, 154; stem of. J54. 



Erythrophyll (pvflp<k, red; <t>vMov, leaf), 

 291, n.; 297. 



Ether (C 4 H IO O), 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, 29(5. 



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 (">, outside; ytvv**>, 

 I produce), 129. 



Exosmose (<(u>, outside ; wr/iof , a thrust- 

 ing), 229. 



