4 26 



INDEX 



Briquet, 235. 



Brodiaea congesta, localization of sensation 

 in, 194 ; transference of stimuli in, 200. 



Brongniart, 372. 



Brownian movements, 263. 



Briicke, 290; method of, 135, 137, 138; 

 on pulvini of Mimosa, 79, 80 ; rigidity 

 of, 1 8, 77. 



Bruckner, 102. 



Brunchhorst, on galvanotropism, 188, 189. 



Bryonia, 42 ; B. dioica, tendrils of, 43, 

 Fig. 9. 



Bryophyta, geotropism of, 166. 



Bryopsis, 329 ; B. muscosa, geotropism of, 

 165; heliotropism of, 174; B. plu- 

 mosa, 324 ; influence of light on zoo- 

 spores of, 320. 



Buchner, 407. 



Buchtien, 174. 



Buds, opening of, 23. 



Buff, 394. 



Bulbocodium vcrnum, 113. 



Buller, 181, 358, 416; on chemotaxis, 344, 

 345, 346, 350. 



Bullot, 219. 



Burdon- Sanderson, 69, 71 ; on latent period 

 of Dionaea, 68; production of elec- 

 tricity, 393, 394. 



Burgerstein, 71, 103, 123 ; on opening of 

 flowers, 137. 



Burk, 82, 



Burnett, on pulvinar mechanism, 80. 



Burns, 22. 



Bursaria truncatella, galvanotaxis of, 363. 



Biisgen, 380. 



Busse, 182, 204. 



Biitschli, 264, 266, 267, 269, 270 ; on lu- 

 minosity, 385, 388 ; on protoplasmic 

 movement, 276, 277, 280, 282, 285 ; 

 physics of, 291, 293, 294, 296, 297, 298, 

 299> 32, 304. 



Buxus, 259. 



Calcium nitrate, repellent action of, 351, 352. 



Caloritropism, 178. 



Caltha palustris, 336. 



Calypogeia trichomanis, centrifuged leaf- 

 cell of, 335, Fig. 56. 



Calyptrogen, localization of irritability in, 

 198. 



Campanula, 23. 



Camphor, tropic action of, 182. 



Cane-sugar, chemotactic action of, 345. 



Capillary tubes, use of, for chemotaxis, 344, 

 Fig. 61. 



Caragana, 259. 



Carbon dioxide, chemotactic action, 353 ; 

 influence of, on pulsating vacuoles, 

 299; shock movements due to, 320; 

 tropic action of, 182. 



Cardamine hirsuta, dehiscence of, 148. 



Cardiospermum Halicacabum, 42. 



Car ex arenaria, ascending roots of, 164. 



Carlet, 30. 



Carlgren, 361. 



Car Una, dispersal of, 151. 



Carpotropic, definition of, 3. 



Caspary, 373, 375. 



Cassia, irritable cotyledons of, 92 ; seis- 

 monic irritability of cotyledons of, 80 ; 

 sleep-movements of, 104 ; C. montana, 

 midday sleep of, 106. 



Cassytha, twining of, 48. 



Catalpa, influence of anaesthetics on stigma 

 of, 144. 



Catasetum, irritability of, 147. 



Catharinea undulata, twining rhizoids of, 

 38, 46. 



Caulerpa, electrical currents in, 395 ; locali- 

 zation of irritability in, 195 ; streaming 

 in, 357 ; C. prolifera, geotropism of, 

 165 ; heliotropism of, 174. 



Celakovsky, 263, 277, 304, 340; on aero- 

 tropism, 182 ; on phototaxis, 323. 



Celastraceae, twining of, 38. 



Cells, changes in shape and size of, during 

 curvature, 240; in reducing action of , 

 227 ; curvature of, 14 ; influence of 

 size of, on streaming, 284, 285, 288 ; 

 localization of irritability in, 195 ; 

 transference of stimuli in, 200, 201. 



Cell-division, influence of centrifugal force 

 on, 335, 336; of streaming on, 285. 



Cell-wall, stretching and growth of, during 

 curvature, 15, 16, 244, 245, 246; in- 

 fluence of light on, 229. 



Cels, 22. 



Celtis, 260. 



Centaurea, 62, Fig. 21 ; influence of induc- 

 tion-shocks on stamens of, 145; of 

 turgor, 4 ; transference of stimuli in, 

 91 ; C.jacea, latent period in, 68 ; mode 

 of movement of, 72 ; C. montana, fila- 

 ment of, 73, Fig. 26. 



Centrifugal force, influence of, on orienta- 

 tion of Marchantia, 25 1 ; mechanical 

 action of, 334, 335; mechanism for, 

 166, 170; separating action of, 366; 

 stimulating action of, 1 66. 



Centrosphere and centrosome, function of, 



224. 



Ceratium tripos, 382, 385. 

 Ceratophyllum, influence of darkness on 



leaves of, 106; movements of, 19. 

 Ceropegia, abnormal twining of, 38. 

 Chaetoceras, 383. 

 Chaetophora, 293. 



Chara, 24, 225, 308, 327, 334 ; anaerobiosis 

 of, 341, Fig. 59, 342 ; changes of tone 

 in, 204 ; chemotaxis of sperms of, 346 ; 

 escape of streaming endoplasm from, 

 280 ; independence of torsion of, on 

 gravity, 27 ; geotropism of, 165; helio- 

 tropism of, 174; seismonic irritability 

 of, 66 ; streaming in, 338, 357, 358 ; 

 diagram of, 291, Fig. 51 ; direc- 



