INDEX. 



493 



COBITES. 



DUCK. 



Cobites, intestine of, 190. 



De Candolle on struggle for existence, 



Cockroach, 76. 



62. 



Collections, palseontological, poor, 287. 



on umbellifera?, 146. 



Colour, influenced by climate, 132. 



on general affinities, 430. 



, in relation to attacks by flies, 



, Alph., on low plants, widely 



198. 



dispersed, 406. 



Columba livia, parent of domestic pi- 



, , on widely-ranging plants 



geons, 23. 



being variable, 53. 



Colymbetes, 386. 



, , on naturalisation, 115. 



Compensation of growth, 147. 



, , on winged seeds, 146. 



Composite, outer and inner florets of, 



, , on Alpine species sud- 



144. 



denly becoming rare, 175. 



, male flowers of, 451. 



, , on distribution of plants 



Conclusion, general, 480. 



with large seeds, 360. 



Conditions, slight changes in,, favour- 



, , on vegetation of Australia, 



able to fertility, 267. 



379. 



Coot, 185. 



, , on fresh-water plants, 386. 



Coral-islands, seeds drifted to, 360. 



, , on insular plants, 389. 



reefs, indicating movements of 



Degradation of coast-rocks, 282. 



earth, 309. 



Denudation, rate of, 285. 



Corn-crake, 185. 



of oldest rocks, 308. 



Correlation of growth in domestic pro- 



Development of ancient forms, 336. 



ductions, 11. 



Devonian system, 334. 



of growth, 143, 198. 



Dianthus, fertility of crosses, 256. 



Cowslip, 49. 



Dirt on feet of birds, 362. 



Creation, single centres of, 352. 



Dispersal, means of, 356. 



Crinum, 250. 



during glacial period, 365. 



Crosses, reciprocal, 258. 



Distribution, geographical, 346. 



Crossing of domestic animals, import- 



, means of, 356. 



ance in altering breeds, 20. 



Disuse, effects of, under nature, 134. 



, advantages of, 96. 



Divergence of character, 111. 



■ unfavourable to selection, 102. 



Division, physiological, of labour, 115. 



Crustacea of New Zealand, 376. 



Dogs, hairless, with imperfect teeth, 



Crustacean, blind, 137. 



12. 



Cryptocerus, 238. 



descended from several wild 



Ctenomys, blind, 137. 



stocks, 18. 



Cuckoo, instinct of, 216. 



, domestic instincts of, 213. 



Currants, grafts of, 262. 



, inherited civilisation of, 215. 



Currents of sea, rate of, 359. 



, fertility of breeds together, 254. 



Cuvier on conditions of existence, 



, of crosses, 268. 



206. 



, proportions of, when young, 



on fossil monkeys, 303. 



444. 



, Fred., on instinct, 208. 



Domestication, variation under, 7. 





Downing, Mr., on fruit-trees in Ame- 



D. 



rica, 85. 



Downs, North and South, 285. 



Dana, Prof., on blind cave-animals, 



Dragon-flies, intestines of, 190. 



139. 



Drift-timber, 360. 



, on relations of crustaceans of 



Driver-ant, 240. 



Japan, 372. 



Drones killed by other bees, 202. 



. on crustaceans of New Zealand, 



Duck, domestic, wings of, reduced, 11. 



376. 



, logger-headed, 182. 



