INDEX. 



503 



Diastase, action of, on starch, 23, 422 ; 

 extraction from malt, 23 ; presence 

 in pollen-grains, 392 ; in germina- 

 tion, 422. 



Diatornacese, 255 (fig. 97) ; movements, 

 258 ; conjugation in, 293. 



Diatoms, to prepare skeletons of, 258. 



Dicotyledons, vascular bundles of, 121 

 et seq. ; root of, 140 ; seed of, 409 ; 

 thickening of, 131 ; pollen forma- 

 tion in, 443. 



Dimorphism, 397. 



Dicficious, 303. 



Diphenylamine, reagent for nitrates, 

 67,68. 



Discomycetes, 327. 



Dissecting. Microscope, xxvii, 205 

 (figs. 79-81) ; spectacles for, 208 ; 

 needles used in, 209. 



Division. See cell-division. 



Dorsal, 234. 



Dorsi-ventrality of leaf, 191 ; of Mar- 

 chantia, 233 et seq. ; .of Lichens, 

 239 ; of Selaginella, 365. 



Double staining, 110. 



Draccena rubra, structure of stem, 117 

 (fig. 44). 



Drawing, importance of, 15 ; methods, 

 40-5 ; preservation of, 45. 



- desk, 42. 



- prism, xxviii, use of, 40 ; Abbe's 40 



(fig. 15) ; with two prisms, 42 (fig. 



16). 



Draw-tube, use of the, 6. 

 Drupe, structure of in Prunus, 424. 

 Drying frame, xxxi (fig. 1) ; to use as a 



moist chamber, xxxi, footnote. 

 Duckweed. See Lemna. 

 Duramen, 77. 

 Dust, removal from preparations, 31. 



EAC de Javelle, solvent of lignin, 79 ; 



clearing reagent, 210. 

 action on cutin, 210 ; transfer- 

 ring from to glycerine, 216. 

 - use of, 216, 220. See also Ap- 

 pendix III. 



Reliever ia, chlorophyll in, 53 ; wax 

 upon, 99. 



Ectoplasm, 50, 253. 



Egg-apparatus. See embryo-sac. 



white of, use of, 374. 



Ehrlich's aniline-water fuchsin, 273. 



Elceagnus angustifolia, scales upon 

 leaf, 94. 



Elaters, of Marchantia, 344 ; of Equise- 

 tum, 364. 



Elder. See Sambucus nigra. 



- pith, xxxi; use of, 82, 231. 

 to obtain, 82. 



Elodea, protoplasmic movements in, 

 49 ; growing apex, 212. 



Embedding for section-cutting, 400, 



446. 

 Embryo, structure and development 



in Alisma Plantago, 413 (fig. 150) ; 



Capsella Bur sa- Pastor is, 410 (fig. 



149) ; Monotropa, 404 ; Picea vtil- 



garis, 376 (fig. 138) ; Prunus, 424 ; 



Triticum, 417 (fig. 151), 419. 



cell, 413. 



nucleus, 305, 375, 403. 



of moss, 349 ; fern, 362. 



Embryo sac, structure and develop- 

 ment, in Aconitum, 399 (fig. 145) ; 

 Capsella Bursa - Pastoris, 412 ; 

 Gloxinia, 405 ; Monotropa Hypo- 

 pitys, 400 (fig. 146) ; Orchideae, 

 404 (fig. 147); Picea vulgaris, 

 373 (fig. 136) ; Pinus, 371 ; Pyrola, 

 401; Torenia asiatica, 405 (fig. 

 148). 



antipodal-cells, 399, 405; egg-ap- 



paratus, 402 ; filiform apparatus, 



406; oosphere (germinal vesicle, 



embryonic vesicle), 399 ; syner- 



gidse, 403. 



Embryonal tubes, in Picea, 376. 

 Embryonic vesicle. See embryo-sac, 



oosphere. 

 Enclosing fluid. See Appendix III. 



and mounting fluid. 

 Endocarp, 414, 424. 

 Endochrome plates, of Pinnularia 



viridis, 257. 

 Endodermis, structure in root of 



Acor-us Calamus, 166 (fig. 66) ; 



Allium Cepa, 163 (fig. 65) ; of Equi- 



setum, 180 ; Iris florentina, 167 



(fig. 67) ; Pteris, 175 (fig. 69) ; 



Taxus, 170 (fig. 68). See also pp. 



318 et seq., and bundle sheath, 



starch sheath. 



See Stelar theory. 



Outer. See suberose layer. 

 Endoplasm, 54. 



Endosperm, 379, 403, 410,419; develop- 

 ment in Monotropa Hypopitys, 403 

 (fig. 146) ; in Capsella, 412. 



homology with prothallus, in Picea, 



373. 



Endosporous (bacteria), 269. 



Endothecium (of anther), 384 (fig. 

 140). 



Ends of the vascular bundles. 198. 



Engelmann's bacteria method, 282. 



Eosin, use of, 35, 46, 253. 



Eosin-logwood. See Appendix III. 



Epiblast, 420, 421. 



Epicarp, 414, 424. 



Epidermis, 80-100 ; structure in Aloe 

 nigricans, 86 (fig. 31) ; Iris flnren- 

 tina, 80 (fig. 28) ; Ruta grareolens, 

 190 (fig. 75) ; Tradescantift, 85 (fig. 



