498 



INDEX 



■Flammakion, effective rays in growth, 

 429. 



Ply 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. 



Fkanke. See PrEirPEE. 



Fkankland, light and bacteria, 171. 



Frazeue, 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. 



<Jain, water and growth, 254. 

 Galvanic current, acclimatization to, 



1.39. 

 Gastropoda, copper in blood, 324. 

 Gautier, green rays and plants, 435. 

 Gav arret, desiccated rotifers, 62. 

 Geotaxis, 114-124. 

 Geotropism, 391-403 ; and phototro- 



pism, 470. 

 Oerosa, 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. 



Golueew, electricity stimulus, 130. 



GoEiNi, Amoeba, .328. 



GoTSCHLicH, heat-rigor, 232, 233. 



Grader, phototaxis, 203, 205, 207 ; 

 thermotaxis, 258, 261. 



Geandeau, 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 respoDse 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. 



Grdber, density, 76. 



Haberland, chemotropism, 242. 



Hsemoglobin, 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, 460. 



