628 



INDEX. 



Electricity, theory of, 157. 



Electricity and chemical af&nityt 

 126. 



Electrolysis, 127. 



Electro-chemistry, 118. 



Electro-chemical theories, 129. 



Elements, search for the, 70. 



Elements and compounds, 71. 



Elkin, 193. 



Elimination of races, 475. 



Elimination, theory of natural, 437. 



Embryology, experimental, 380 ; 

 generalisations of, 378; physio- 

 logical, 378 ; progress of, 365. 



Encke, 186. 



Endoderm or hypoblast, 373. 



Energy, transformations of, 116, 

 138 ; conservation of, 138 ; dissi- 

 pation of, 138, 139. 



Energy, maintenance of solar, 207. 



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, theory of, 424. 



Evolution theory, present aspect 

 of, 428. 



Evolution of Sex, 391. 



Evolution of the subject-matter of 

 the sciences, 49. 



Evolution, in the old embryological 

 sense, 368. 



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, 846. 



Extinction of races, the problem of 

 the, 347. 



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, 808. 



Faye, meteoritic hypothesis, 228. 



Fechner, 300, 455. 



Fer6, 381. 



Ferrier, 304 ; on cerebral localisa 

 tion, 310. 



Fertilisation, 371. 



Fick, 308. 



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, 310 ; on cerebral localisa- 

 tion, 446. 



Flemming, 360. 



Fleurian de Belle vue, 271. 



Fliuders-Petrie, quoted, 474. 



Flourens, 304, 445. 



Fluorine, 73. 



Fol, 359, 360, 871. 



Folk-lore, 489. 



Forchhammer, 262. 



Forel, 307. 



Fossils, 344 ; value of, 234, 248, 250. 



Foster, Sir Michael, 300 ; on proto- 

 plasm, 317; on nervous tissue, 

 302 ; on scientific spirit, 7. 



Foucault, 214 ; velocity of light, 154. 



Fouqu6, 275. 



Fourier, 235. 



Frankland. 74, 104. 



FrapoUi, 262. 



Fraunhofer, 217 ; spectroscope, 212. 



Fraunhofer's lines, 213. 



Fresnel, experiments on light, 151. 



Friedel, 275. 



Fritsch, 304, 310. 



Frommann, 360. 



Fuchs, 274. 



Function, complexity of, 293. 



Functions of organs, 290. 



Function-change, 341. 



Functional compensation, 295. 



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, 432 ; Natural In- 

 heritance (1889), 401. 



Gal van i, 157. 



Games, 491. 



Gaskell, on metabolism, 319. 



