INDEX. ABERRANT. BALANCEMENT. South, no modern formations Ammonites, sudden extinction of, Anagallis, sterility of, ii. 4. Andaman Islands inhabited by a Animals, not domesticated from domestic, descended from seve- acclimatisation of, i. 175. of Australia, i. 140. with thicker fur in cold cli- mates, i. 166. -, blind, in caves, i. 172. extinct, of Australia, ii. 121. Antarctic islands, ancient flora of, Antechinus, ii. 219. Ants attending aphides, i. 323. slave-making instinct, i. 336. Archiac, M. de, on the succession of Artichoke, Jerusalem, i. 176. -, improved by selection, i. 48. Aucapitaine, on land-shells, ii. 187. on variation in birds' nests, i. on heron eating seeds, ii. 176. extinct animals of, ii. 121. Azara, on flies destroying cattle, i. Bats, how structure acquired, i. Boulders, erratic, on the Azores, ii. 218. distribution of, ii. 184. Bear, catching water-insects, i. 220. Bee, sting of, i. 255. -, queen, killing rivals, i. 256. i. 93. 149. Branchiæ, i. 231, 232. of crustaceans, i. 238. Brent, Mr., on house-tumblers, i. Britain, mammals of, ii. 185. Broca, Prof., on Natural Selection, hive, not sucking the red Bronn, Prof., on duration of specific Ligurian, i. 117. 342. hive, cell-making instinct, i. Brown, Robert, on classification, ii. Cattle destroying fir-trees, i. 88. breeds of, locally extinct, i. 134. Indian, i. 21; ii. 10. Celts, proving antiquity of man, Centres of Creation, ii. 135. development of, ii. 244. Cervulus, ii. 9. Cetacea, teeth and hair, 1. 179. -, development of the whale- bone, i. 285. Cetaceans, i. 285. Ceylon, plants of, ii. 164. sexual, variable, i. 185, 191. Charlock, i. 94. Checks, to increase, i. 83. , mutual, i. 86. Chelæ of Crustaceans, i. 300. Chironomus, its asexual reproduc- Chthamalus, cretacean species of, Circumstances favourable to selec- larvæ of, ii. 243. reefs, indicating movements of Corn-crake, i. 223. Correlated variation in domestic Coryanthes, i. 241. Creation, single centres of, ii. 135. Croll, Mr., on subaerial denudation, on the age of our oldest for- on alternate Glacial periods Crossing of domestic animals, im- 125. air-breathers, i. 238. Dana, Prof., on blind cave-animals, -, on relations of crustaceans of on crustaceans of New Zea- Dawson, Dr., on eozoon, ii. 85. on umbelliferæ, i. 181. -, on low plants, widely dis- -, on widely-ranging plants be- on naturalisation, i. 139. -, on distribution of plants with -, on vegetation of Australia, ii. on fresh-water plants, ii. 174. of oldest rocks, ii. 85. Devonian system, ii. 113. during Glacial period, ii. 151. Disuse, effect of, under nature, i. Divergence of character, i. 134. proportions of body in differ-· Downing, Mr., on fruit-trees in Dragon flies, intestines of, i. 229. Drones killed by other bees, i. 256. 12. Eggs, young birds escaping from, i. 106. Egypt, productions of, not modified, Electric organs, i. 234. Extinction, as bearing on natural of domestic varieties, i. 145. Eye, structure of, i. 225. correction for aberration, i. 255. F. Fabre, M., on hymenoptera fight- on parasitic sphex, i. 336. Falconer, Dr., on naturalisation of on elephants and mastodons, and Cautley, on mammals of Faunas, marine, ii. 131. Fear, instinctive, in birds, i. 329. Fertilisation variously effected, i. Fertility of hybrids, ii. 6. beauty of, i. 252. Flysch formation, destitute of or- Forbes, Mr. D., on glacial action in -, E., on colours of shells, i. 165. on poorness of paleontological -, on continuous succession of -, on continental extensions, ii. on distribution during Glacial on parallelism in time and Forests, changes in, in America, i. 91. Formation, Devonian, ii. 113. Cambrian, ii. 84. from slight changes in condi- Formations, thickness of, in Britain, |