498 



INDEX 



FLAMMARION, effective rays in growth, 

 429. 



Fly larvae, chemotactic, 38 ; geotactic, 

 118. 



Fluorine, and growth, 317. 



Food, 309-330 ; response to, 39 ; elec- 

 tion, 334. 



Formaldehyde, poison, 20, 21. 



FRANK, chlorophyll position, 189 ; 

 growth definition, 282 ; nitrogen as 

 food, 308-310. 



FRANKE. See PFEIFFER. 



FRANKLAND, light and bacteria, 171. 



FRAZEUR, regeneration and density, 

 365. 



FREDA, electricity and growth, 408. 



FREDERICQ, salt-absorption, 88 ; cop- 

 per and growth, 324. 



Fresh water absorbed by marine or- 

 ganisms, 79, 80. 



FRIES, light and fungi, 420. 



Frog, sodic fluoride, 22 ; density, 82 ; 

 salt-absorption, 88; electric stimu- 

 lus, 132, 139 ; pigment and light, 

 192 ; water in developing, 285 ; size 

 and medium, 474, 475. 



Frog's egg, cytotaxis, 52 ; cold-rigor, 

 240 ; oxygen and growth, 305 ; elec- 

 tricity, 405. 



FROMANN, soluble mineral bases as 

 poisons, 13. 



Fungi, salts of arsenic, 5 ; sulphurous 

 oxide, 20 ; nitrous acids, 21 ; nutri- 

 tive solutions, 302 ; hydrogen as food, 

 306; potassium, 318; iron, 323; 

 organic foods, 324-326; water and 

 growth, 350; hydrotropism, 358; light 

 and growth, 420 ; colored light, 430. 



GAIN, water and growth, 254. 

 Galvanic current, acclimatization to, 



139. 



Gastropoda, copper in blood, 324. 

 GAUTIER, green rays and plants, 435. 

 GAVARRET, desiccated rotifers, 62. 

 Geotaxis, 114-124. 

 Geotropism, 391-403 ; and phototro- 



pism, 470. 

 GEROSA, cold, 241. 

 Germination, and solutions, 363 ; and 



light, 424. 



GILBERT. See LAWES. 

 GLAN, spectrophotometer, 160. 



Glucose, reaction, 4. 



Glycerine, chemotactic, 37. 



GOGORZA, density, 79-83 ; acclimatiza- 

 tion, 86, 87. 



Gold chloride, poison, 46, 47. 



Gold-fish, density, 77, 79. 



GOLUBEW, electricity stimulus, 130. 



GORINI, Amoeba, 328. 



GOTSCHLICH, heat-rigor, 232, 233. 



GRABER, phototaxis, 203, 205, 207 ; 

 thermotaxis, 258, 261. 



GRANDEAU, electricity, 406, 408. 



Gravity, methods, 112 ; protoplasm, 

 113, 114 ; direction of locomotion, 

 114-124 ; growth, 391-403. 



Green plants, light, 174 ; organic food, 

 326, 327. 



GREENWOOD, nicotin as poison, 24. 



GROOM, phototaxis and temperature, 

 200. 



Growth, analysis of processes, 281 ; 

 three factors, 282 ; regions in plants, 

 283 ; cell-division, 287 ; kinds of, 

 287 ; normal, 288, 289 ; chemical 

 agents on, 293 ; as response to stim- 

 ulus, 331 ; directed, 335, 355, 376, 

 384, 387, 391, 409, 437, 460; water, 

 350 ; density, 362 ; molar agents, 

 370 ; wounding, 384 ; gravity, 391 ; 

 electricity, 405 ; light, 416 ; heat, 

 450 ; optimum, 454 ; maximum tem- 

 perature, 456 ; range, 456 ; modifi- 

 cation of rate, 478-480 ; modification 

 of direction, 480-483. 



GRUBER, density, 76. 



HABERLAND, chemotropism, 242. 



Haemoglobin, properties, 298. 



HALES, phototropism, 437. 



HALLIBURTON, heat-rigor, 239. 



Halogens and growth, 315. 



HAMBURGER, isotonic coefficient, 73; 

 density, 76. 



HAMMOND, light and growth, 426. 



HANSTEEN, organic food of plants, 327. 



HARTIG, phosphorus and growth, 314. 



Heat, absorption by plants, 170 ; nat- 

 ure of, 219 ; action on protoplasm, 

 222-263 ; chlorophyll formation, 224 ; 

 irritability, 225 ; acclimatization to, 

 249, 251 ; extremes, 248 ; direction 

 of locomotion, 258 ; growth, 450- 

 467 ; latent period, 400. 



