Index 



231 



Living matter, artificial production 



of. 5. 

 Localization experiments, 35. 

 Loeb, Leo, 48, 210. 

 Lottia, 209. 

 Lucas, 208. 

 Luther, 38. 

 Lyon, 57. 



"Lysin theory," 143. 

 Lysins, 139 ff. 



McClung, 16, 17. 



Mach, 57. 



Macromysis flexuosa, 214. 



Margelis, 89, 107. 



Maternal character of heterogeneous 

 hybrids, 199. 



Mathews, A. P., 11, 144, 156. 



Maxwell, S. S., 39, 208. 



Mead, 7, 117. 



Mechanical causation of cytolysis, 145. 



Mechanical destruction of cortical 

 layer, 10, 11. 



Mechanics of growth in animals, 95. 



Membrane of fertilization, 8, 148 flf.; 

 membrane-forming substances, bases 

 as, 134; membrane formation, emul- 

 sion theory of, 145, 147 flf. ; membrane 

 formation, influence of, in causing egg 

 to develop, 150 flf. 



Memory, associative, 55, 73. 



Mendel, 4, 16, 20, 21, 49, 52, 59, 60, 

 226. 



Mendel's laws, 4, 15 flf., 20, 49, 52, 

 59 flf., 226. 



Menidia, 25. 



Merrifleld, 211. 



Meyerhof, 190. 



Miescher, 114, 115. 



Minkowski, 79. 



Moenkhaus, 24. 



Monstrosities, artificial production of, 

 in sea-urchins. 100 flf. 



Montgomery, 16. 



Morgan. 7, 17, 19, 21, 92, 117, 119, 216. 



Morphology, physiological, 109. 



Movements, compulsory, 38. 



Munk. 35. 79. 



ISIuscles, osmotic phenomena in, 99. 



Mytilus, 198. 



Natural selection, 50 flf. 

 Nemec, 58. 

 Nereis, 12. 

 Neuberg, C, 38. 

 Norman, 117. 



Organisms, harmonious character of, 

 23 flf. 



Organs, fusion of normally double, 207. 



Osmotic phenomena in muscles, 99. 



Osterhout, 177, 178, 179, 188. 



Ostwald, Wilhelm. 4. 



Ostwald, Wolfgang, 38, 213. 



Otoliths of ear and orientation to 

 center of gravity of the earth, 57. 



Overton, 148, 177, 178, 179, 191. 



Oxidation, ferments of, 5. 



Oxidations, and their relation to the 

 egg after fertilization, 13, 157, 160 flf., 

 164; in their relation to life and 

 death, 14, 15; eflfect of retarded, on 

 poisonous salt action, 190 flf. 



Parker, 39, 49, 220. 



Parthenogenesis, 117 flf.; artificial, 7, 



116 flf., 127 flf., 199 flf. 

 Parthenogenetic development, varying 



susceptibility of eggs to, 144. 

 Pauli, 99, 181. 

 Pawlow, 62. 

 Pennaria, 91. 

 Peter, 208. 

 Pettenkofer, 4. 

 Pfluger, 216. 



Photochemical action of light, 30, 36. 

 Photochemical, eflfects, 27, 38, 39; 



substances, 39. 

 Photosensitive surfaces, 39. 

 Photosensitiveness, varying, in animals, 



45. 

 Phylloxera, 19. 



Physiological morphology, 109. 

 Planarians, 39, .54. 

 Plasmolysis, 177. 



Poisoning, acid, 18 ff.; salt, 186 flf. 

 Poisonous action of distilled water on 



Gammarus, 170 flf. 

 Polarization, 92 flf. 

 Polygordius, 53. 

 Polynoe, 132, 158. 

 Porthesia chrysorrhoea, 47, 48, 218 flf., 



222. 

 Potassium cyanide, action of, 156 flf. 

 Pouchet, 80, 214. 

 Poulton, 215. 

 Prevost, 114. 

 Procter, 181. 

 Production of twins from one egg 



through a change in the chemical 



constitution of the sea-water, 204 flf. 

 Protective solution, 172. 

 Purposeful character of reflexes, 66. 

 Pycnopodia, 198. 

 Pyrrhocoris, 16. 



Radl, 49. 



Ranke, 99. 



Rayleigh, 147, 152. 



Reflex, 65 ff. 



Reflexes, coordinated movements in, 



70; purposeful character of, 66. 

 Reinke, 24. 

 "Riddle of life." 5. 

 Ringer, 172, 173. 



Robertson, T. B., 185, 208, 210. 

 Role of water in segmentation, 99. 

 Roscoe, 27, 29, 30, 41, 58. 

 Roux, 24, 216. 

 Rubner, 4. 



Sachs, 104, 107. 



Salamandra atra, 225. 



Salamandra maculosa, 225. 



Salt poisoning, 186 flf. ; diflfercnce of 

 permeability of various membranes, 

 189 flf. 



Salts, antagonism of acids and, 179 flf.; 

 antagonism of three salts. 182 ff.; 

 cooperative action of, causing im- 

 permeability of egg membrane, 

 176 ff.; diffusion of, 177 ff. 



Schmiedeberg. 173. 



Schopenhauer, 35. 



Schultze, 216. 



Sea-water, hypertonic, 7, 116 ff., 131 fl. 



Segregation, law of, 16, 20 fl. 



