230 



The Mechanistic Conception of Life 



Doncaster, 21. 



Dorfmeister, 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 ff. 



Effects of chemical agencies, 196 ff. ; 

 of gravitation, 215; of light, 213. 



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

 treatment of, 10; cortical layer of 

 unfertilized, 10, 189; increased 

 sensitiveness of unfertilized, to 

 cytolytic agents, 163 ff.; produc- 

 tion of twins from, 204 ff . 



Eggs, factors which 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 ff. 



Enzymes, 5, 122, 123. 



Esters, catalysis of, 43. 



Ethics, 3, 5, 31 ff., 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, Emil, 115. 



Fovea centralis, 39. 



France, 58. 



Froschl, 29. 



Fundulus heteroclitus, 25, 105, 172 ff., 

 175, 179 ff., 223. 



Fusion of normally double organs, 207. 



Galvanotropism, 50 ff. 



Gamble, 214, 215. 



Gammarus, 170 ff., 189; poisonous 



action of distilled water on, 170 ff. 

 Gemmill, 121. 



Geotropism, 56 ff., 89, 217, 223. 

 Gies, 175. 



Godlewski, 15, 95, 198, 199. 

 Goldfarb. 213. 

 Gravitation, effects of, 215. 

 Groom, 221. 

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



animals, 95. 

 Growth and light, 213. 

 Guyer, 17, 18. 



Haberlandt, 58. 

 Hagedoorn, 15, 199. 

 Handovski, 99. 

 Hardy, 148. 



Harmonious character of organisms, 

 23 ff. 



Hartmann, E. von, 35. 



Harvey, 189. 



Heliotropic animals, 41; heliotropic 

 reactions, experiments on the mech- 

 anism of, 218. 



Heliotropism, 27 ff., 220 ff.; artificial 

 causation of positive, 43, 220; influ- 

 ence of acids on, 42, 220. 



Henking, 16. 



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



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



Hertwig, O., 116, 134, 208. 



Hertwig, R., 7. 



Heterogeneous hybridization, 24, 25, 

 196 ff. 



Heteromorphosis, 85 ff., 217 fl. 



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 ff. 



Hybrids, maternal character of hetero- 

 geneous, 199. 



Hydra, 93 ff. 



Hydroids, Experiments on, 217. 



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



Hypotricha, 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 ff. 



Influence of membrane formation in 

 causing the egg to develop, 150 ff. 



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. 



Kellogg, 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 ff. 



Leeuwenhook, 113. 



Liebig, 115. 



Life, contents of, 26 ff. 



" Life principle," 14, 15. 



Light, change in intensity of, 54 ff. 

 effects of, 213; growth and, 213 

 photochemical action of, 30, 36 

 selection of intensity of, by animals 

 52 ff. 



Lillie, F., 12. 



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



