ANNUAL plants, rarity of bud-variation in.

ANOMALIES in the osteology of the horse.

ANOMALOUS breeds of pigs. -of cattle.

Anser albifrons, characters of, reproduced in domestic geese.

Anser aegyptiacus.

Anser canadensis.

Anser ferus, the original of the domestic goose. -fertility of cross of, with domestic goose.

ANSON, on feral fowls in the Ladrones.

ANTAGONISM between growth and reproduction.

Anthemis nobilis, bud-variation in flowers of. -becomes single in poor soil.

ANTHERS, contabescence of.

ANTIGUA, cats of. -changed fleece of sheep in.

Antirrhinum majus, peloric. -double-flowered. -bud-variation in.

ANTS, individual recognition of.

APHIDES, attacking pear-trees. -development of.

APOPLEXY, hereditary, occurring at a certain age.

APPLE. -fruit of, in Swiss lake-dwellings. -rendered fastigiate by heat in India. -bud-variation in the. -with dimidiate fruit. -with two kinds of fruit on the same branch. -artificial fecundation of. -St. Valery. -reversion in seedlings of. -crossing of varieties of. -growth of the, in Ceylon. -winter majetin, not attacked by coccus. -flower-buds of, attacked by bullfinches. -American, change of, when grown in England.

APRICOT. -glands on the leaves of. -analogous variation in the.

Aquila fusca, copulating in captivity.

Aquilegia vulgaris.

ARAB boarhound, described by Harcourt.

Arabis blepharophylla and A. soyeri, effects of crossing.

Aralia trifoliata, bud-variation in leaves of.

ARAUCARIAS, young, variable resistance of, to frost.

ARCHANGEL pigeon.

ARCTIC regions, variability of plants and shells of.

Aria vestita, grafted on thorns.

ARISTOPHANES, fowls mentioned by.

ARISTOTLE, on solid-hoofed pigs. -domestic duck unknown to. -on the assumption of male characters by old hens.

ARNI, domestication of the.

ARNOLD, Mr., experiments of pollen on the maize.

ARRESTS of development.

ARTERIES, increase of anastomosing branches of, when tied.

ARU Islands, wild pig of.

ARUM, Polynesian varieties of.

Ascaris, number of eggs of.

ASH, varieties of the. -weeping. -simple-leaved. -bud-variation in. -effects of graft upon the stock in the. -production of the blotched Breadalbane. -weeping, capricious reproduction of, by seed.

Asinus burchellii.

Asinus hemionus.

Asinus indicus.

Asinus quagga.

Asinus taeniopus, the original of the domestic ass.

ASPARAGUS, increased fertility of cultivated.

ASS, early domestication of the. -breeds of. -small size of, in India. -stripes of. -dislike of, to cross water. -reversion in. -hybrid of the, with mare and zebra. -prepotency of the, over the horse. -crossed with wild ass. -variation and selection of the.

ASSYRIAN sculpture of a mastiff.

ASTERS.

ASTHMA, hereditary.

ATAVISM. See Reversion.

ATHELSTAN, his care of horses.

ATKINSON, Mr., on the sterility of the Tarroo silk-moth in confinement.

AUBERGINE.

AUDUBON, on feral hybrid ducks. -on the domestication of wild ducks on the Mississippi. -on the wild cock turkey visiting domestic hens. -fertility of Fringilla ciris in captivity. -fertility of Columba migratoria and leucocephala in captivity. -breeding of Anser canadensis in captivity.

AUDUBON and Bachman, on the change of coat in Ovis montana. -sterility of Sciurus cinerea in confinement.

AURICULA, effect of seasonal conditions on the. -blooming of.

AUSTRALIA, no generally useful plants derived from. -useful plants of, enumerated by Hooker.

AUSTRIA, heredity of character in emperors of.

AUTENRIETH, on persistency of colour in horses.

AVA, horses of.

Avena fatua, cultivability of.

'AYEEN Akbery' pigeons mentioned in the.

AYRES, W.P., on bud-variation in pelargoniums.

Azalea indica, bud-variation in.

AZARA, on the feral dogs of La Plata. -on the crossing of domestic with wild cats in Paraguay. -on hornlike processes in horses. -on curled hair in horses. -on the colours of feral horses. -on the cattle of Paraguay and La Plata. -on a hornless bull. -on the increase of cattle in South America. -on the growth of horns in the hornless cattle of Corrientes. -on the "Niata" cattle. -on naked quadrupeds. -on a race of black-skinned fowls in South America. -on a variety of maize.

Charles Darwin

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