Bats, how structure acquired, i. Boulders, erratic, on the Azores, ii. 218. distribution of, ii. 184. Bear, catching water-insects, i. 220. 283. Bee, sting of, i. 255. , queen, killing rivals, i. 256. i. 93. 149. Branchiæ, i. 231, 232. of crustaceans, i. 238. Braun, Prof., on the seeds of Fuma- Brent, Mr., on house-tumblers, i. Britain, mammals of, ii. 185. hive, not sucking the red Bronn, Prof., on duration of specific 342. Ligurian, i. 117. various objections by, i. 265. 207. Catasetum, i. 243; ii. 216. breeds of, locally extinct, i. 134. Indian, i. 21; ii. 10. Cave, inhabitants of, blind, i. 170. Celts, proving antiquity of man, Centres of Creation, ii. 135. ii. 58. Colour, influenced by climate, i. 165. Columba livia, parent of domestic Cephalopoda, structures of eyes, i. Colymbetes, ii. 174. Chelæ of Crustaceans, i. 300. Chironomus, its asexual reproduc- Chthamalinæ, ii. 59. Compensation of growth, i. 182. male flowers of, ii. 257. Conclusion, general, ii. 293. Conditions, slight changes in, fa- Cope, Prof., on the acceleration or Coral-islands, seeds drifted to, ii. - reefs, indicating movements of Correlated variation in domestic Creation, single centres of, ii. 135. Chthamalus, cretacean species of, Crinum, ii. 6. Circumstances favourable to selec- to natural selection, i. 124. their ovigerous frena, i. 232. larvæ of, ii. 243. Claparède, Prof., on the hair-clasp- Clift, Mr., on the succession of types, Climate, effects of, in checking in- —, adaptation of, to organisms, i. Croll, Mr., on subaerial denudation, on the age of our oldest for- on alternate Glacial periods Crossing of domestic animals, im- 125. Cruger, Dr., on Coryanthes, i. 241. air-breathers, i. 238. Cuckoo, instinct of, i. 319, 330. Cunningham, Mr., on the flight of Cuvier, on fossil monkeys, ii. 79. D. 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 general affinities, ii. 228. -, 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. 116. Devonian system, ii. 113. Dianthus, fertility of crosses, ii. 13. during Glacial period, ii. 151. Disuse, effect of, under nature, i. Divergence of character, i. 134. Eggs, young birds escaping from, i. 106. Egypt, productions of, not modified, i. 263. Electric organs, i. 234. of domestic varieties, i. 145. Eye, structure of, i. 225. correction for aberration, i. 255. F. Fabro, M., on hymenoptera fight- on parasitic sphex, i. 336. -, 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. "" from slight changes in condi- of crossed varieties, ii. 34. Fish, flying, i. 218. teleostean, sudden appearance eating seeds, ii. 146, 175. ii. 172. Fishes, ganoid, now confined to electric organs of, i. 234. , ganoid, living in fresh water, in United States, i. 104. Glacial period, affecting the North Glands, mammary, i. 295. Ginelin, on distribution, ii. 151. varieties of, acclimatised in Godwin-Austen, Mr., on the Malay United States, i. 176. Fuci, crossed, ii. 15, 23. Fur, thicker in cold climates, i. 166. G. Galapagos Archipelago, birds of, productions of, ii. 188, 190. Game, increase of, checked by ver- Gärtner, on sterility of hybrids, ii. on reciprocal crosses, ii. 15. -, on crossed maize and verbas- -, on comparison of hybrids and Geese, fertility when crossed, ii. 9, 10. upland, i. 222. Geikie, Mr., on subaerial denuda- Genealogy, important in classifica- Generations, alternate, ii. 239. on homologous organs, ii. 233. or correlation, in monstrosi- on correlation, i. 179. on variable parts being often Geographical distribution, ii. 129. Gervais, Prof., on Typotherium, ii. Giraffe, tail of, i. 245. structure of, i. 276. Glacial period, ii. 151. Archipelago, ii. 74. Goethe, on compensation of growth, i. 182. Gomphia, i. 272. Gooseberry, grafts of, ii. 19. Gould, Dr. Aug. A., on land-shells, Mr., on colours of birds, i. 165. Gourds, crossed, ii. 38. Gray, Dr. Asa, on the variability of -, on man not causing variabil- -, on sexes of the holly, i. 116. -, on naturalised plants in the on æstivation, i. 272. on rarity of intermediate va- Dr. J. E., on striped mule, i. Grimm, on asexual reproduction, ii. 240. Groups, aberrant, ii. 227. red, a doubtful species, i. 59. on the range of fresh-water on the limbs of Lepidosiren, H. Haast, Dr., on glaciers of New Zea- Habit, effect of, under domestica- |