Seite - 542 - in The Origin of Species

54^9 INDEX Cirripedes, their ovigerous frena, 196. , fossil, 357. , larva of, 481. Claparede, Prof., on the hair-clasp- ers of the Acaridx, 202. Clarke, Rev. W. B., on old glaciers in Australia, 418. Classification, 450. Clift, Mr., on the succession of types, 388. Climate, effects of, in checking in- crease of beings, 84. , adaptation of, to organisms, 153- Climbing plants, 195. , developments of, 252. Clover visited by bees, 110, iii. Cobites, intestine of, 194. Cockroach, 90. Collections, palaeontological, poor, 340. Colour, influenced by climate, 146. , in relation to attack by flies, 209. Columba livia, parent of domestic pigeons, 39. Colymbetes, 429. Compensation of growth, 158. Compositae, flowers and seeds of, 157. , outer and inner florets of, 225. , male flowers of, 491. Conclusion, general, 519. Conditions, slight changes in, favour- able to fertility, 317. Convergence of genera, 139. Coot, 189. Cope, Prof., on the acceleration or retardation of the period of repro- duction, 197. Coral-islands, seeds drifted to, 406. reefs, indicating movements of earth, 406. Corn-crake, 190. Correlated variation in domestic productions, 29. Coryanthes, 203. Creation, single centres of, 400. Crinum, 302. Croll, Mr., on subaerial denudation, 339- , on the age of our oldest for- mations, 359. , on alternate Glacial periods in the North and South, 418. Crosses, reciprocal, 306. Crossing of domestic animals, im- portance in altering breeds, 36. , advantages of, 110. , unfavourable to selection, 1 13, Criiger, Dr., on Corj'anthes, 204. Crustacea of New Zealand, 421. Crustacean, blind, 150. air-breathers, 202. Crustaceans, their chels, 249. Cryptocerus, 292. Ctenomys, blind, 150. Cuckoo, instinct of, 262, 270. Cunningham, Mr., on the flight of the logger-headed duck, 147. Currants, grafts of, 311. Currents of sea, rate of, 406. Cuvier, on conditions of existence, 262, 263. , on fossil monkeys, 356. , Fred., on instinct, 262, 263. Cyclostoma, resisting salt water, 439. D Dana, Prof., on blind cave-animals, 151- , on relations of crustaceans of Japan, 417. -, on crustaceans of New Zea- land, 421. Dawson, Dr., on eozoon, 360. De Candolle, Aug. Pyr., on struggle for existence, 77. , on umbelliferae, 157. , on general affinities, 469. , Alph., on the variability of oaks, 67. -, on low plants, widely dis- persed, 446. , on widely-ranging plants being variable, 69. , on naturalisation, 125. , on winged seeds, 158. -, on Alpine species suddenly be- coming rare, 180. , on distribution of plants with large seeds, 407. -— , on vegetation of Australia, 423, 424. , on fresh-water plants, 430. -, on insular plants, 432. Degradation of rocks, 336. Denudation, rate of, 337. of o!dest_ rocks, 360. of granitic areas, 345. Development of ancient forms, 384. Devonian system, 382. Dianthus, fertility of crosses, 306, 307. Dimorphism in plants, 61, 319. Dirt on feet of birds, 409. Dispersal, means of, 403. during Glacial period, 411. Distribution, geographical, 395. , means of, 403. Disuse, effect of, under nature, 147. Divergence of character, 122. Diversification of means for same general purpose, 203. Division, physiological, of labour, 125. Dog, resemblance of jaw to that of the Thylacinus, 463. Dogs, hairless, with imperfect teeth, 30. descended from several wild stocks, 35. , domestic instincts of, 268.