396 



Index 



ii, 157; matters of, 299 



Endoplasm, i, 277 



Energy, formative and regenera- Falta, W., ii, 134 

 tive, i, 11; of modern physics, Fatalism, ii, 89 

 76; and matter, 141; conception Fatigue, and sugar in blood, ii, 



132; and blood pressure, 181 

 Fear, and adrenin in blood, ii, 

 132; with physical and psychical 



of, 320; of contraction, ii, 63; 



and substance, 337; and power, 



force, work, 342; surface, 344 

 Entelechy, ii, 149 

 Environmental influence, ii, 244 

 Enzymes, digestive, comparative Felidae, i, 96 



chemistry of, i, 104; facilitate Ferns, ii, 99 



transformation, ii, 81 

 Epicurus, i, 3 



Epithelium, and internal secre- Finalism, ii, 152 



life, 183 

 Feeling, intellect, will, ii, 217 



Fertilization, hybrid, i, 344 

 Fielcle, A., on odors in ants, i, 89 



tions, ii, 135 



Eppinger, H., ii, 133 



Equilibrium, general notion of, i, 

 17; physical chemistry concep- 

 tion of, 216 



Essences, ii, 288 



Esterlv, C. O., ii, 208 



Finch, house, ii, 260 



Fishes, sperm of different species, 

 i, 102; floating eggs and young 

 of, 213; mating habits of, ii, 265 



Flagella, of bacteria, 259; rela- 

 tion to nucleus, 328, 330; struc- 

 ture and origin of, 370 



Evidence, direct and indirect, of Flat-worms, ii, 109 



mechanism of heredity, i, 325; Flavors, of animals and plants, i, 

 favorable to chromatin as hered- 84 



itary substance, 326; visible and Fluid, as phase of system, i, 216 

 invisible, ii, 56; picking out of, Foetus, i, 272 



Forbush, E. H., ii, 270 



ii, 263 



Evolution, i, 291, ii, 241 



Evolutions, four simultaneous, i, 

 321 



Eudendrium, i, 67 



Eugenics, i, 305; and fatalism, ii, 

 89 



Excessiveness, of instinctive activ- 

 ity, ii, 259; of sex impulse, 265 



Forces, antagonistic, ii, 127; con- 

 stitutively antagonistic, 134; 

 abuse of the term, 298 



Fore-foot, horse's, and man's hand, 

 ii, 224 



"Formative stuffs," i, 16; and in- 

 ternal secretions, ii, 142; of 

 Sachs, 147 



Excitability, threshold of, ii, 165; Form^-determination, cytoplasmic, 



selective, 165 

 Excitor, ii, 147 



ii, 14 

 Forsyth, Ruth, ii, 44 



Experience, ii, 305; subjective and Fossil wood, ii, 58 



objective, 285; causes of, un- Foster, Sir Michael, ii, 346 

 known, 303 Fragmentation, and analysis,, ii, 



Experimentation, limitations of, ii, 236 



212; laboratory, 279 Freud, S., ii, 350 



Explanation, spurious type of, ii, Friedlander, B., ii, 102 



81; causal, 146, 240; of trop- Frog, eggs of, i, 199; pigment 



cells of, 339; sex determination 

 in, ii, 76; larva and thyroid of, 

 143; croaking of, 261 

 Fruit flies, supposed connection 

 between mutations and chromo- 



isms, 190 

 Expression of emotion, ii, 264 



Factorial hypothesis in heredity, i, 



21 

 Factors, in heredity, i, 42, 306 



somes in, i, 354 



Facts, neglect of, by elementalists, Fundamental, criterion of, ii, 201 



