( 527 )
INDEX.
ABERRANT.
A.
Aberrant groups, 461.
Abyssinia, plants of, 409.Acclimatisation , 157.
Affinities of extinct species, 356.
■ -of organic beings, 443.
Agassiz on Amblyopsis, 157.
— — on groups of species suddenlyappearing, 336.
- - on embryological succession, 367.
--on the glacial period, 396.
* -on embryological characters, 450.
-- on the latest tertiary forms, 322.
■ -on parallelism of embryological
development and geological succes-sion, 481.
Alligators, males, fighting, 93.Amblyopsis, blind fish, 157.
America , North, productions allied tothose of Europe , 395.
--, boulders and glaciers of, 404.
, South, no modern formations onwest coast, 312.
Ammonites, sudden extinction of, 348.Anagallis, sterility of, 269.
Analogy of variations, 179.
Ancylus, 416.
Animals, not domesticated from beingvariable, 17.
' “-} domestic, descended from several
stocks, 19.
* --acclimatisation of, 158.
— with thicker fur in cold climates,150.
> blind, in caves, 154*
*7 5 extinct, of Australia , 368.
Anomma, 263.
Ants attending aphides, 231.
-, slave-making instinct, 239.
-, neuter, structure of, 258.
Aphides, attended by ants, 231.
Aphis, development of, 474.
Arab horses, 36.
Archiac, M. de, on the succession ofspecies, 351.
Artichoke, Jerusalem, 160.
Ascension, plants of, 420.
Asclepias, pollen of, 213.
Aspai-agus, 389.
Aspicarpa, 449.
Asses, striped, 181.
-, improved by selection, 43.
Ateuchus, 152.
Audubon on habits of frigate-bird, 203.
-- on variation in birds’-nests, 232.
-on heron eating seeds, 418.
-, dogs of, 236.
-, extinct animals of, 368.
Azara on flies destroying cattle, 75.Azores , flora of, 393.
B.
Babington, Mr., on British plants, 50.Baer, Yon, standard of Highness, 133.
-comparison of bee and fish, 365.
. ■ 9 embryonic similarity of the verte-brata, 471.
Balancement of growth, 164.
Barberry, flowers of, 103.
Barrande , M., on Silurian colonies, 339.
_on the succession of species, 352.
__on parallelism of palseozoic forma-tions, 355.