INDEX. 



627 



Concrete sciences, 28. 



Conclusions of tlie first magnitude, 



49. 

 Conservation of energy, 115, 136, 



138. 

 Conservation of Matter, 76. 

 Continental areas, 239. 

 Continuity of generations, 399. 

 Continuity of the germ-plasm, 403, 



415. 

 Control Experiments, 23. 

 Control, seat of, in the brain, 462. 

 Conybeare, 249. 



Cope, 344, 351 ; on inheritance, 419. 

 Coral-reefs, 868. 

 Cordier, 271. 



Cornu, 155 ; quoted, 152, 153, 156. 

 Correlation of knowledge, 29. 

 Correlation of organs, 295. 

 Correlation of parts, 333. 

 Correlation of the sciences, 60. 

 Couper, 104. 



Creationist and evolutionist, 37. 

 Cretinism, 292. 

 Critical point, 96. 

 Crookes, Sir William, 75, 163; on 



protyle, 113, 

 Croll, 265. 

 Cronstedt, 274. 

 Crust-movements, 256. 

 Cu6not, 297. 



Cuvier, 225, 234, 241, 249, 333, 344. 

 Cytology, 360. 

 Cytoplasm, 316, 360. 



Daguerre, photography (1838), 116. 



Dalton, 81, 113, 126. 



Dalton on diffusion of gases, 147. 



Dames, 351, 



Dana, 257. 



Dannemann, 194. 



Dareste, experimental teratology, 

 380 



Darwin, Charles, 30, 262, 266, 290, 

 417 ; on earthworms, 269 ; Origin 

 of Species (1859), 351, 397; pan- 

 genesis, 402 ; question of human 

 species, 483; services to evolu- 

 tion-doctrine, 426 ; theory of 

 Natural Selection, 430, 435; on 

 variability, 431. 



Darwin, G. H., 242 ; Tidal friction, 

 223. 



Daubeny, 252. 



Davenport, Physiological Morpho- 

 logy, 363. 



Davenport, 314. 



Davy, Sir Humphry, 71, 73, 95. 139 ; 

 electrolysis, 127 ; experiments 

 on heat, 1799, 144. 



De Bary, .3.38, 364, 371 ; on cell-forma- 

 tion, 363. 



De Blainville, 319. 



Deep Sea deposits, 281. 



Deep-Sea exploration, 278. 



Degeneration, 343. 



Deiters, 306. 



De La Beche, 262. 



Delage, 373, 405; on protoplasm, 



359; experiments on merogony 



(1898) 390. 

 Denudation, 243. 

 Deshayes, 249. 

 Desmarest, 228. 

 Development, 365 ; arrested, 343 ; 



factors in, 380 ; progressive, 349 ; 



without sperm -nucleus, 388; 



without ovum-nucleus, 390. 

 Developmental mechanics, 379. 

 Deville, H. de St Claire, Disassocia- 



tion, 92. 

 De Vries, 404, 483. 

 Dewar, liquefaction of hydrogen 



(1898), 97. 

 D'Halloy, d'Omallius, 249. 

 Diabetes, 294. 

 Dielectrics, 161. 

 Differentiation, 339. 

 Division of Labour, 295. 

 Dobereiner, 109. 



Dohrn, 298 ; function-change, 341. 

 Donati, 186. 

 Donders, 358. 

 Doppler, 218. 

 Double stars, 189. 

 Draper, 117. 

 Driesch, 315, 389. 

 Driesch, experimental embryology, 



384, 386, 387. 

 Drift, 203. 

 Drift-Theory, 262. 

 Dubois, 350. 



Dubois, his Pithecanthropus, 476. 

 Duclaux, 364. 

 Diising, 391. 

 Dufrenoy, 252. 



Dujardin, 364 ; sarcode, 357 ; 332, 356. 

 Dulong and Petit, 144 ; Law of, 86, 



91. 

 Dumas, 88, 98, 109, 129, 357, 369 ; isom- 

 erism, 101 ; radical theory, 102 ; 



theory of substitution, 103. 

 Dutrochet, 355. 

 Duval, theory of sleep, 307. 



E. 



Earth, age of the, 241 ; history of 



the, 236. 

 Earth-sculpture, 250. 

 Earthquakes, 254. 

 Earthworms, importance of, 269. 

 Ecker, 358. 



Ectoderm or epiblast, 378. 

 Ehrenberg, 269, 364. 

 Ehrlich, 306. 



