Page:Origin of Species 1872.djvu/465

 Rh

groups,.

Abyssinia, plants of,.

Acclimatisation,.

Adoxa,. Affinities of extinct species,. —— of organic beings,.

Agassiz, on Andblyopsis,.

——, on groups of species suddenly appearing,.

——, on prophetic forms,.

——, on embryological succession,. ——, on the Glacial period,.

——, on embryological characters,.

——, on the latest tertiary forms,.

——, on parallelism of embryological development and geological succession,. ——, Alex., on pedicellarise,. Algæ of New Zealand,.

Alligators, males, fighting,.

Alternate generations,.

Amblyopsis, blind fish,.

America, North, productions allied to those of Europe,.

——, ——, boulders and glaciers of,.

——, South, no modern formations on west coast,.

Ammonites, sudden extinction of,.

Anagallis, sterility of,.

Analogy of variations,.

Ancylus,.

Andaman Islands inhabited by a toad,.

Animals, not domesticated from being variable,.

——, domestic, descended from several stocks,.

——, ——, acclimatisation of,.

—— of Australia,.

—— with thicker fur in cold climates,.

Animals, blind, in caves,.

——, extinct, of Australia,.

Anomma,. Antarctic islands, ancient fiora of,.

Antechinus,.

Ants attending aphides,.

——, slave-making instinct,.

——, neuters, structure of,.

Apes, not having acquired intellectual powers,.

Aphides, attended by ants,.

Aphis, development of,.

Apteryx,.

Arab horses,.

Aralo-Caspian Sea,.

Archeopteryx,.

Archiac, M. de, on the succession of species,.

Ai*tichoke, Jerusalem,.

Ascension, plants of,.

Asclepias, pollen of,.

Asparagus,.

Aspicarpa,.

Asses, striped,.

——, improved by selection,.

Ateuchus,.

Aucapitaine, on land-shells,.

Audubon, on habits of frigate-bird,. ——, on variation in birds' nests,. ——, on heron eating seeds,.

Australia, animals of,.

——, dogs of,.

——, extinct animals of,.

——, European plants in,.

——, glaciers of,.

Azara, on flies destroying cattle,. Azores, flora of,.

Babington, Mr., on British plants,.

Bafer, Von, standard of Highness,.

——, comparison of bee and fish.