528 



INDEX. 



Electricity and chemical affinity, 



126. 



Electricity, theory of, 157. 

 Electro-chemical theories, 129. 

 Electro-chemistry, 118. 

 Electrolysis, 127. 

 Elements and compounds, 71. 

 Elements, search for the, 70. 

 Elimination of races, 475. 

 Elimination, theory of natural, 437. 

 Elkin, 193. 



Embryology, experimental, 380 ; gene- 

 ralisations of, 378 ; physiological, 



378 ; progress of, 365. 

 Encke, 186. 



Endoderm or hypoblast, 373. 

 Energy, maintenance of solar, 207. 

 Energy, transformations of, 116, 138; 



conservation of, 138; dissipation 



of, 138, 139. 

 Engelmann, 117. 

 Epigenesis, defined, 366. 

 Epigenesis versus Evolution, 368. 

 Ether, 168, 169, 174, 176; theories of 



the, 177. 

 Ethnology, 474. 

 Evolution, evidences of, 377 ; factors 



in, 430; inorganic, 112. 

 Evolution -idea, history of, 425; in 



astronomy, 220. 

 Evolution in the old embryological 



sense, 368. 



Evolution of Sex, 391. 

 Evolution of the subject-matter of the 



sciences, 49. 



Evolution, theory of, 424. 

 Evolution theory, present aspect of. 



428. 



Evolutionary geology, 225, 234. 

 Ewart, Cossar, on breeding, 440 ; 



Penycuik Experiments, 394, 401, 



410. 



Experiment and observation, 22. 

 Experimental geology, 233. 

 Explanation and interpretation, 322. 

 Extinct Types, 346. 

 Extinction of races, the problem of 



the, 847. 



F. 



Fairbanks, on the social organism, 

 504. 



Fairies, 489. 



Falb, on earthquakes, 255. 



Family, sociological import of the, 

 514. 



Faraday, 13, 94, 95, 96, 101, 144, 156; 

 discovery of induced currents, 

 160 ; discovery of magneto- 

 electricity (1831), 160 ; dynami- 

 cal theory of electricity, 161 ; 

 electrolysis, 129, 161 ; electro- 

 lytes, 118, 119. 



Fatigue of nerve-cells, 308. 



Faye, meteoritic hypothesis. 223. 



Fechner, 300, 455. 



Fere, 381. 



Ferrier, 304 ; on cerebral localisa- 

 tion, 310. 



Fertilisation, 371. 



Fick, 808. 



Fischer, 81. 



Fiske, on origin of human sociality, 

 516. 



Fison, quoted, 193, 196, 197, 198, 200, 

 218 



Fitzgerald, quoted, 131 ; electro-mag- 

 netic waves, 162. 



Fizeau, 218. 



Fizeau, velocity of light, 155. 



Flateau, 308. 



Flechsig, 810; on cerebral localisa- 

 tion, 446. 



Flemming, 360. 



Fleurian de Bellevue, 271. 



Flinders-Petrie, quoted, 474. 



Flourens, 304, 445. 



Fluorine, 73. 



Fol, 359, 360, 871. 



Folk-lore, 489. 



Forchhammer, 262. 



Forel, 307. 



Fossils, 844 ; value of, 234, 248, 250. 



Foster, Sir Michael, 300 ; on proto- 

 plasm, 317 ; on nervous tissue, 

 802 ; on scientific spirit, 7. 



Foucault, 214 ; velocity of light, 154. 



Fouque, 275. 



Fourier, 235. 



Frankland, 74, 104. 



Frapolli, 262. 



Fraunhof er, 217 ; spectroscope, 212. 



Fraunhofer's lines, 213. 



Fresnel, experiments on light, 151. 



Friedel, 275. 



Fritsch, 304, 310. 



Frommann, 860. 



Fuchs, 274. 



Function, complexity of, 293. 



Functional compensation, 295. 



Function-change, 341. 



Functions of organs, 290. 



G. 



Qadow, quoted, 355. 



Galle, 185. 



Gallium, 112. 



Galton, 399, 402, 412, 417, 485; on 

 filial regression, 408 ; genetic 

 continuity, 399 ; law of ancestral 

 inheritance, 411 ; transilient 

 variations, 43B ; Natural In- 

 heritance (1889), 401. 



Galvani, 157. 



Games, 491. 



Gaskell, on metabolism, 819. 



