443 ) 



INDEX. 



A. 



Aberrant groups, 379. 



Abyssinia, plants of, 340. 



Acclimatisation, 112. 



Adoxa, 173. 



Affinities of extinct species, 301, 



— — of organic beings, 378. 



Agassiz, on Amblyopsis, 112. 



, on groups of species suddenly 



appearing, 289. 



— — , on prophetic forms, 301. 



, on embryological succession, 



310. 



, on the Glacial period, 330. 



, on embryological characters, 



368. 



, on the latest tertiary forms, 278. 



■ , on parallelism of embryological 



development and geological suc- 

 cession, 396. 



, Alex., on pedicellaria;, 191. 



Algas of New Zealand, 338. 



Alligators, males, fighting, 69. 



Alternate generations, 387. 



Amblyopsis, blind fish, 112. 



America, North, productions allied to 

 those of Europe, 333. 



— — , , boulders and glaciers of, 



335. 



— — , South, no modern formations 

 on west coast, 272. 



Ammonites, sudden extinction of, 297. 



Anagallis, sterility of, 236. 



Analogy of variations, 127. 



Ancylus, 345. 



Andaman Islands inhabited by a toad, 

 350. 



Animals, not domesticated from being 

 variable, 13. 



, domestic, descended from seve- 

 ral stocks, 14. 



, , acclimatisation of, 112. 



of Australia, 90. 



with thicker fur in cold climates, 



107. 



Animals, blind, in caves, 110. 



, extinct, of Australia, 310. 



Anomma, 232. 



Antarctic islands, ancient, flora o£ 



355. 

 Antechinus, 373. 

 Ants attending aphides, 207. 



, slave-making instinct, 217. 



, neuters, structure of, 230. 



Apes, not having acquired intellectual 



powers, 181. 

 Aphides, attended by ants, 207. 

 Aphis, development of, 390. 

 Apteryx, 140. 

 Arab horses, 26. 

 Aralo-Caspian Sea, 311. 

 Archeopteryx, 284. 

 Archiac, M. de, on the succession of 



species, 299. 

 Artichoke, Jerusalem, 114. 

 Ascension, plants of, 347. 

 Asclepias, pollen of, 151. 

 Asparagus, 325. 

 Aspicarpa, 367. 

 Asses, striped, 127. 



, improved by selection, 30. 



Ateuchus, 109. 



Aucapitaine, on land-shells, 353. 



Audubon, on habits of frigate-bird, 



142. 

 , on variation in birds' nests, 



208. 



, on heron eating seeds, 346. 



Australia, animals of, 90. 



, dogs of, 211. 



, extinct animals of, 310. 



, European plants in, 337. 



, glaciers of, 335. 



Azara, on flies destroying cattle, 56. 

 Azores, flora of, 328. 



B. 



Babington, Mr., on British plants, 37 

 Baer, Von, standard of Highness, 97. 



, comparison of bee and fish 



308. 



