440 



INDEX. 



Croseincr, mlrantajrcs of, 00. 



uiifiivorable to selection, 102. 

 CrnETcr, Dr.. on Coryanthes, 18tj. 

 Cnistacca of New Zealand, 345. 

 Crus'acenn, blind, \i'2. 



nir- breathers, 18tj. 

 CryptocerujJ. a-2>!. 

 Ctenomvs, blind, 1 11. 

 t'lickoo," instinct of. 200. 

 ("urrantp, praftsof. 2-15. 

 Currents of sea, rale of, 332. 

 Cuvier, on conditions of existence, 200. 



on foBsil monkeys, 288. 



Frcfl., on instinct, 201. 

 Cyclostouia, resisting salt-water, 3C2. 



Dana, Prof, on blind cave-animals, lt.3. 



on relations of crustaceans of Japan, 

 342. 



on cnistaccans of New Zealand, 345. 

 Dawson, Dr., on cozoon, 202. 

 Do CandoUo, Aujr. Pyr., on etnissle for 

 existence, 70. 



on nmbelliferic, 140. 



<m frcneral affinities, .388. 

 Dc Candolle, Alpb., on the variability of 

 oaks, GO. 



on low plants, widely dispersed, 

 307. 



on widely-ranging plants being vari- 

 able, ()•). 



on naturalization, 113. 



on winged seeds, 149. 



on Alpine species suddenly becoming 

 rare, KiO. 



on distribution of plants with large 

 seeds, 3.32. 



on vegetation of .\nstralia, 317. 



on fresh-watvr plants, 353. 



on insular i)lants, .3.55. 

 Degradation ol rocks. 269. 

 Deuudatioii, rate of, 271. 



of oldest rocks, 202. 



of granitic areas, 277. 

 Development of ancient forms, 313. 

 Devonian system, 311. 

 Dianthus. fertility of crosses, 241. 

 Dimorphism in plants, .55, 253. 

 Dirt ou feet of birds, :i34. 

 Dispersal, means of, 329. 



during Glacial period, .3.37. 

 Distribution, geographical, .322. 



means of, 330. 

 Disuse, effects of, under nature, 1.39. 

 Divergence of character, 110. 

 Diversification of means for same general 



purpose, ISO. 

 Division. physioloL'ical. of labor, 113. 

 Dogs, hairless, with imi)orfect teeth, 26. 



descended from several wild slocks, 

 32. 



domestic instincts of, 207. 



inherited civilization of. 207. 



fertility of breeds together, 2.30. 



■ of crosses, a5<i. 



pmporticms of body in dlflferent 

 breeds, when young, 399. 

 Domestication, variation under, 22. 

 Double flowers, 227. 



Downing, Mr., on fmlt-trees in America, 



80. 

 Dragon-flies, intestines of, 182. 

 Drifi-timber. 32). 

 Driver-ant. 2-30. 



Drones killed by other bees, 197. 

 Duck, domestic, wings of, reduced, 25. 



logger-headed, 174. 

 Duckweed. 352. 

 Dugong, affinities of. 375. 

 Dung-beetles with deficient tarsi, 140. 

 Dytiscus, .353. 



Earl, Mr. W., on the Malay Archipelago, 



3(X). 

 Ears, drooping, in domestic animals, 26. 



rudimentary. 408. 

 Earth, seeds in roots of trees, 333. 



charged with seeds, 335. 

 Eciton, 228. 



Economy of organization, 150. 

 Edentata, teeth and hair, 147. 



fossil species of, 318. 

 Edwards, Milne, on physiological divis- 

 ion of labor, 122. 



on gradations of structure, 190. 



on cmbryological characters, 378. 

 Egsrs. young" birds escaping from, 90. 

 E'rypt.jiroductions of, not modified, 125. 

 Electric organs, 184. 

 Elephant, irate of increase, 72. 



of Glacial period, 145. 

 Embrj'ology, 394. 

 Eozoon Caiiadense, 201. 

 Epilepsy inherited, 140. 

 Existence, sfrngu'le for, CO. 



conditions of, 200. 

 Extinction, as bearing on natural selec- 

 tion, 114. 



of domestic varieties, 118. 



290. 

 Eye, stnictnre of, 170, 



correction for aberration, 197. 

 Eyes, reduced iu moles, 1-12. 



Fabre, M., on hymenopfera fighting, 91. 



on parasitic sphex, 212. 



on sitaris, 402. 

 Falconer, Dr., on naturalization of plants 

 in India, 73. 



on elephants and mastodons, 311. 



and Cautley, on mammals of snb-llim- 

 alavan beds, 317. 

 Falkland" Islands, wolf of, 359. 

 Fanlts, 270. 

 Faunas, marine, 323. 

 Fear, instinctive, in birds. 208. 

 Feet of birds, young mollusks adhering 



to, :K2, 

 Fertilization varionslv effected, 188, 105. 

 Fertility ofhvbrids, 2.37. 



from sliirlit changes in conditions, 252. 

 Fertility of crossed varieties, 257. 

 Fir-trees dcstroved by cattle, 78. 



pollen of, 198. 

 Fish, flying. r.S. 



teleostean, sudden appearance of, 290 



catini,' seeds, 3.31, .3.51. 



fresh-water, distribution of, 352. 



