C.

Cabbage, varieties of, crossed, 99. Calceolaria, 251. Canary-birds, sterility of hybrids, 252. Cape de Verde islands, 398. Cape of Good Hope, plants of, 110, 375. Carrier-pigeons killed by hawks, 362. Cassini on flowers of compositæ, 145. Catasetum, 424. Cats, with blue eyes, deaf, 12. ----, variation in habits of, 91. ---- curling tail when going to spring, 201. Cattle destroying fir-trees, 72. ---- destroyed by flies in La Plata, 72. ----, breeds of, locally extinct, 111. ----, fertility of Indian and European breeds, 254. Cave, inhabitants of, blind, 137. Centres of creation, 352. Cephalopodæ, development of, 442. Cervulus, 253. Cetacea, teeth and hair, 144. Ceylon, plants of, 375. Chalk formation, 322. Characters, divergence of, 111. ----, sexual, variable, 156. ----, adaptive or analogical, 426. Charlock, 76. Checks to increase, 67. ---- ----, mutual, 71. Chickens, instinctive tameness of, 216. Chthamalinæ, 289. Chthamalus, cretacean species of, 305. Circumstances favourable to selection of domestic products, 40. ---- ---- to natural selection, 102. Cirripedes capable of crossing, 101. ----, carapace aborted, 148. ----, their ovigerous frena, 192. ----, fossil, 304. ----, larvæ of, 440. Classification, 413. Clift, Mr., on the succession of types, 339. Climate, effects of, in checking increase of beings, 68. ----, adaptation of, to organisms, 139. {493} Cobites, intestine of, 190. Cockroach, 76. Collections, palæontological, poor, 288. Colour, influenced by climate, 132. ----, in relation to attacks by flies, 198. Columba livia, parent of domestic pigeons, 23. Colymbetes, 386. Compensation of growth, 147. Compositæ, outer and inner florets of, 144. ----, male flowers of, 451. Conclusion, general, 480. Conditions, slight changes in, favourable to fertility, 267. Coot, 185. Coral-islands, seeds drifted to, 361. ---- reefs, indicating movements of earth, 310. Corn-crake, 186. Correlation of growth in domestic productions, 11. ---- of growth, 143, 198. Cowslip, 49. Creation, single centres of, 352. Crinum, 250. Crosses, reciprocal, 258. Crossing of domestic animals, importance in altering breeds, 20. ----, advantages of, 96. ---- unfavourable to selection, 102. Crustacea of New Zealand, 376. Crustacean, blind, 137. Cryptocerus, 239. Ctenomys, blind, 137. Cuckoo, instinct of, 216. Currants, grafts of, 262. Currents of sea, rate of, 360. Cuvier on conditions of existence, 206. ---- on fossil monkeys, 304. ----, Fred., on instinct, 208.