which is almost implied by reproduction; Variability, from the indirect and direct action of the external conditions of life, and from use and disuse; a Ratio of Increase so high as to lead to a Struggle for Life, and as a consequence to Natural Selection, entailing Divergence of Character and the Extinction of less-improved forms. Thus, from the war of nature, from famine and death, the most exalted object which we are capable of conceiving, namely, the production of the higher animals, directly follows. There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved. INDEX Animals, extinct, of Australia, 304. Antarctic islands, ancient flora of, Antirrhinum, 146. Ants attending aphides, 189. slave-making instinct, 196. Audubon on habits of frigate-bird, 190. on variation in birds'-nests, on heron eating seeds, 848. extinct animals of, 304. Babington, Mr., on British plants, 45. Balancement of growth, 183. Barrande, M., on the succession | Bosquet, M., on fossil Chthamalus, of species, 291. Bear catching water-insects, 165. queen, killing rivals, 182. hive, not sucking the red hive, cell-making instinct, humble, cells of, 202. on classification, 377. 327. annually cross the Atlantic, colour of, on continents, 120. fossil, in caves of Brazil, 304. song of males, 81. waders, 847. seeds, 824. wingless, 122, 163. with traces of embryonic teeth, 405. affinities of, 386. on striped Hemionus, 148 Bory St. Vincent on Batrachians, 253. 273. Cabbage, varieties of, crossed, 90. Canary-birds, sterility of hybrids, Cape de Verde Islands, 358. Carrier-pigeons killed by hawks, Cassini on flowers of composita, Catasetum, 382. Cats, with blue eyes, deaf, 11. Cattle destroying fir-trees, 66. 67. breeds of, locally extinct, 100. Cave, inhabitants of, blind, 124. Cetacea, teeth and hair, 131. Checks to increase, 62. 194. Ctenomys, blind, 124. on fossil monkeys, 272. Dana, Prof., on blind cave-animals, on relations of crustaceans of on crustaceans of New Zea- De Candolle on struggle for exist- on umbelliferæ, 132. on general affinities, 387. -on widely ranging plants on naturalisation, 104. on distribution of plants on vegetation of Aus- on insular plants, 349. - during glacial periods, 328. Disuse, effects of, under nature, Divergence of character, 101. Dogs, hairless, with imperfect descended from several wild domestic instincts of, 192. inherited civilisation of, 193 |