494 



INDEX 



Apstein, light on pelagic eggs, 417. 



Apus, heat on growth of, 458. 



Area, acclimatization to changed den- 

 sity, 86. 



Arendt, sulphur and growth, 314. 



Arsenic and growth, 314. 



Arsenic acid, oxidization by, 5. 



Arsenious acid, oxidization by, 5. 



Aktaud, temperature and metabolism, 

 222. 



Arthropoda, effect of varying density, 

 81, 82 ; salt absorption by, 88 ; posi- 

 tively electrotactic, 147. 



Ascaridae, strychnin, 26. 



Ascaris, sodic carbonate, 13 ; sodic hy- 

 drate, 13 ; phenol, 19 ; hydrocyanic 

 acid, 19. 



Ascidia, thigmotropism, 382. 



Asellus aquaticus, acclimatization to 

 changing density, 86. 



Ash, of organisms, 295, 296 ; of dog 

 and dog's milk, 303. 



AsKENAST, latent period, 460. 



Asparagin, chemotaxis towards, 38. 



Aspergillus, nitrogen food, 308. 



Atmospheric pressure and growth, 368 ; 

 electricity, 408. 



Atropin and protoplasm, 24. 



Azoimid, effect on protoplasm, 7. 



Bacilli, calcic oxide and caustic potash 

 poisonous to, 13. 



Bacillus ramosus, growth in colored 

 light, 430 ; critical points, 454. 



Bacteria, effect on, of oxygen, 2, 168 ; 

 ozone, 3 ; potassic chlorate, 4 ; sodic 

 chromate, 4 ; carbonic disulphide, 

 12 ; organic acids, 13 ; potassic car- 

 bonate, 13 ; salts of heavy metals, 

 14 ; diamid, 16 ; formaldehyde, 21 ; 

 chemotaotic, 33, 45 ; towards oxy- 

 gen, 34 ; inorganic salts, 36 ; alcohol 

 and glycerine, 37 ; to determine iso- 

 tonic coeflScients, 74 ; acclimatiza- 

 tion to density, 86 ; tonotaxis, 90 ; 

 effect of violent shaking, 99, 371 ; 

 of light, 169, 171, 174; dark-rigor, 

 175 ; change of light intensity, 178 ; 

 light-rigor, 178 ; cold, 241 ; growth, 

 288 ; nitrifying, 299, 308-312 ; food, 

 324, 325 ; growth in light, 430 ; heat 

 and growth, 452 ; critical tempera- 

 tures, 454^57. 



Bacterium termo, chemotaxis, 32, 38. 



Balanus larvae, chemotaxis, 198. 



Baranetzki, negative phototaxis, 185 ; 

 response of Myxomycetes to light, 

 202 ; effect of pulling on growth, 

 372. 



Bark extract, attracts Myxomycetes, 

 38. 



Barnacles, respond to shadow, 179. 



DE Baey, light and seed germination, 

 420. 



Bases, effect on protoplasm, 13. 



Bassler, nutrition of plants, 299. 



Bastit, geotropism, 398. 



Bateson, geotropism, 397. 



Baudrimont, r61e of water in growth, 

 284. 



Baujiann, iodine and growth, 367. 



Bean, effect of changing density, 367 ; 

 traumatropism, 384. 



Beclard, colors and growth of fly, 

 432. 



Beetles, geotaxis, 118. 



Beggiatoa, negative phototaxis, 184. 



Benecke, solutions for fungi, 302 ; po- 

 tassium and growth, 318 ; rubidium 

 and caesium and growth, 320 ; mag- 

 nesium and growth, 323. 



Benzenylamidoxim, poison, 15. 



Benzol derivatives, chemotaxis towards, 

 38. 



Bernard, chloroform on protoplasm, 9. 



Bert, effect of dense solutions on fish, 

 79, 80, 82 ; acclimatization to den- 

 sity, 86 ; dark-rigor, 176 ; range of 

 visible spectrum in animals, 203 ; 

 effective rays in phototaxis, 203 ; 

 oxygen and plants, 305 ; effective 

 rays in plant growth, 428 ; green 

 rays and growth, 435. 



Berthelon, electricity and plant 

 growth, 406. 



Berthelot, nitrifying organisms, 308 ; 

 enrichment of fallow ground, 310. 



Beudant, acclimatization to density, 



85. 

 Beyerinok, food of Amoeba, 328. 

 Bezold, water in animals, 58, 295. 

 BiALOELooKi, heat and growth, 461. 

 BiEDERMANN, elcctric response of 



muscle, 133. 

 BiNZ, theory of arsenical poisoning, 

 4, 5; effects on protoplasm of halo- 



