230 



The Mechanistic Conception of Life 



Doncastor. 21. 

 Dortraeister, 211. 

 Driesch, 101, 108, 204, 224. 

 Drosophila, 21. 

 Dumas. 114. 

 Dzierzon, 116. 



Ear, otoliths of, and orientation to 

 center of gravity of the earth, 57. 



Effect of retarded oxidations on 

 poisonous salt action, 190 fl. 



Effects of chemical agencies, 196 fl. ; 

 of gravitation, 215; of light, 213. 



Egg, activation of, 6ff. ; butyric acid, 

 treatment of, 10; cortical layer of 

 imfertilized, 10, 189; increased 

 sensitiveness of unfertilized, to 

 cytolytic agents, 16.3 fl.; produc- 

 tion of twins from, 204 fl. 



Eggs, factors whicli determine time 

 and place for the deposition of, 225; 

 immunity of, to body extracts of 

 same species, 142; varying sus- 

 ceptibility of, 144. 



Emulsion theory of membrane forma- 

 tion, 145, 147 fl. 



Enzymes, 5, 122, 123. 



Esters, catalysis of, 43. 



Ethics, 3, 5, 31 fl., 62. 



Eudendrium racemosum, 213. 



Experimental control of animal 

 instincts, 218. 



Experiments, on hydroids, 217; on 

 the egg of the frog, 216; on the 

 mechanism of heliotropic reactions, 

 218; localization, 35. 



Factors which determine time and 

 place for the deposition of eggs, 

 225. 



Ferments of oxidation, 5. 



Fertilization, 6; fertilization mem- 

 brane, 8, 148 ff. 



Fiddler crabs, 60. 



Fischer, 211, 212, 213. 



Fischer, Emll, 115. 



Fovea centralis, 39. 



France, 58. 



Froschl, 29. 



Fundulus heteroditus, 25, 105, 172 fl., 

 175, 179 fl., 223. 



Fusion of normally double organs, 207. 



Galvanotropism, 50 fl. 



Gamble, 214, 215. 



Gammarus, 170 fl., 189; poisonous 



action of distilled water on, 170 fl. 

 GemmUl, 121. 



Geotropism, 56 fl., 89, 217, 223. 

 Gies, 175. 



Godlewski, 15, 95, 198, 199. 

 Goldfarb, 213. 

 Gravitation, eflects of, 215. 

 Groom, 221. 

 Growth, 96 fl., 100 fl. ; mechanics of, in 



animals, 95. 

 Growth and light, 213. 

 Guyer, 17 18. 



Haberlandt, 58. 

 Hagedoorn, 15, 199. 

 Haudovski, 99. 

 Hardy. 148. 



Harmonious character of organisms, 

 23 fl. 



Hartmann, E. von, 35. 



Harvey, 189. 



Heliotropic animals, 41; heliotropic 

 reactions, experiments on the mech- 

 anism of, 218. 



Heliotropism, 27 fl., 220 fl.; artificial 

 causation of positive, 43, 220; influ- 

 ence of acids on, 42, 220. 



Henking, 16. 



Henschen, 79. 



Herbst. 92, 134, 186, 187, 204, 207, 224. 



Heredity, 4, 15 fl., 49, 52. 101. 



Hertwig, O., 116, 134, 208. 



Hertwig, R., 7. 



Heterogeneous hybridization, 24, 25, 

 198 fl. 



Heteromorphosis, 85 fl., 217 ft. 



Hippolyte cranchii, 215. 



His, 100, 101, 115. 



Hoeber, 177. 



Holmes, 51, 60. 



Holmes, S. J., 220. 



Huxley, 15. 



Huyghens, 104, 107. 



Hybridization, heterogeneous, 24, 25, 

 196 fl. 



Hybrids, maternal character of hetero- 

 geneous, 199. 



Hydra. 93 fl. 



Hydroids, Experiments on, 217. 



Hypertonic sea^-water, 7, 116 ff., 131 fl. 



Hy-potricha, 55. 



Illumination, Cosine law of, 41 ; inten- 

 sity of, 44. 



Immunity, 142. 



Immunity of eggs to body extracts 

 of same species, 142. 



Increased sensitiveness of unfertilized 

 egg to cytolytic agents, 163 fl. 



Influence of membrane formation in 

 causing the egg to develop, 150 fl. 



Influence of temperature, 207 ff. 



Infusoria Coelenterates, 74. 



Instincts, 69. 



Intensity of illumination, 44. 



Jacobi, 113. 

 Jennings, 55, 60. 



Kammerer, 225, 226. 227. 



Keeble, 214, 215. 



KeUogg, v., 49, 222. 



Knaffl, von, 136, 147. 



Koeppe, 148. 



Kupelwieser, 15, 21, 125, 198, 199. 



Laplace, 4, 5. 



Lavoisier, 4, 5. 



Law of segregation, 16, 20 fl. 



Leeuwenhook, 113. 



Liebig, 115. 



Life, contents of, 26 fl. 



" Life principle," 14, 15. 



Light, change in intensity of, 54 ff. 

 eflects of, 213; growth and, 213 

 photochemical action of, 30, 36 

 selection of intensity of, by animals, 

 52 ff. 



LUlie, F., 12. 



Lillie, R., 10, 132, 136, 174, 181. 



