417 ) 



INDEX. 



ABERRANT. 



AZORES. 



ABERRANT groups, 355. 

 Abyssinia, plants of, 319. 

 Acclimatisation, 104. 

 Adoxa, 161. 

 Affinities of extinct species, 283. 



of organic beings, 354. 



Agassiz, on Amblyopsis, 104. 

 , on groups of species suddenly 

 appearing, 271. 



, on prophetic forms, 283. 



. , on embryological succession, 



291. 



, on the Glacial period, 310. 



, on embryological characters, 



345. 



, on the latest tertiary forms, 



261. 



, on parallelism of embryologi- 

 cal development and geological 

 succession, 372. 



, Alex., on pedicellariae, 178. 

 Algae of New Zealand, 317. 

 Alligators, males, fighting, 64. 

 Alternate generations, 363. 

 Amblyopsis, blind fish, 104. 

 America, North, productions allied 

 to those of Europe, 313. 



, , boulders and glaciers of, 



315. 



, South, no modern formations 



on west coast, 255. 

 Ammonites, sudden extinction of, 



278. 



Anagallis, sterility of, 221. 

 Analogy of variations, 118. 

 Ancylus, 324. 

 Andaman Islands inhabited by a 



toad, 329. 

 Animals, not domesticated from 



being variable, 12. 

 , domestic, descended from seve- 

 ral stocks, 13. 

 , , acclimatisation of, 105. 



Animals of Australia, 84. 

 with thicker fur in cold cli- 

 mates, 100. 



, blind, in caves, 103. 



extinct, of Australia, 291. 



Anomma, 217. 



Antarctic islands, ancient flora of, 



333. 



Antechinus, 350. 

 Ants attending aphides, 193. 



, slave-making instinct, 202. 



, neuters, structure of, 215. 



Apes, not having acquired intel- 

 lectual powers, 169. 

 Aphides, attended by ants, 193. 

 Aphis, development of, 366. 

 Apteryx, 131. 

 Arab horses, 24. 



Aralo-Caspian Sea, 292. 



Archeopteryx, 266. 



Archiac, M. de, on the succession of 

 species, 280. 



Artichoke, Jerusalem, 106. 



Ascension, plants of, 326. 



Asclepias, pollen of, 141. 



Asparagus, 305. 



Aspicarpa, 344. 



Asses, striped, 119. 



, improved by selection, 29. 



Ateuchus, 101. 



Aucapitaine, on land-shells, 332. 



Auduoon, on habits of frigate-bird, 

 133. 



, on variation in birds' nests, 



194. 



, on heron eating seeds, 325. 



Australia, animals of, 84. 



, dogs of, 197. 



, extinct animals of, 291. 



, European plants in, 317. 



, glaciers of, 315. 



Azara, on flies destroying cattle, 

 62. 



Azores, flora of, 308. 



