BOETHIUS on Scotch wild cattle.

BOITARD and Corbie, on the breeds of pigeons. -Lille pouter pigeon. -notice of a gliding pigeon. -variety of the pouter pigeon. -dovecote pigeon. -crossing pigeons. -sterility of hybrids of turtle-doves. -reversion of crossed pigeons. -on the fantail. -on the trumpeter. -prepotency of transmission in silky fantail. -secondary sexual characters in pigeons. -crossing of white and coloured turtle-doves. -fertility of pigeons.

BOMBYCIDAE, wingless females of.

Bombyx hesperus.

Bombyx huttoni.

Bombyx mori.

BONAFOUS, on maize.

BONAPARTE, number of species of Columbidae. -number of tail-feathers in pigeons. -size of the feet in Columbidae. -on Columba guinea. -Columba turricola, rupestris and schimperi.

Bonatea speciosa, development of ovary of.

BONAVIA, Dr., growth of cauliflowers in India.

BONER, Mr., semi-feral sheep.

BONES, removal of portions of. -regeneration of. -growth and repair of.

BONIZZI, on pigeons.

BONNET, on the salamander. -theory of reproduction.

BORCHMEYER, experiments with the seeds of the weeping ash.

BORECOLE.

BORELLI, on Polish fowls.

BORNEO, fowls of, with tail-bands.

BORNET, E., condition of the ovary in hybrid Cisti. -self-impotence of hybrid Cisti.

BORROW, G., on pointers.

BORY DE SAINT-VINCENT, on gold-fish.

Bos, probable origin of European domestic cattle from three species of.

Bos frontosus.

Bos indicus.

Bos longifrons.

Bos primigenius.

Bos sondaicus.

Bos taurus.

Bos trochoceros.

BOSC, heredity in foliage-varieties of the elm.

BOSSE, production of double flowers from old seed.

BOSSI, on breeding dark-coloured silkworms.

BOSMAN, on dogs of Guinea.

BOUCHARDAT, on the vine disease.

BOUDIN, on local diseases. -resistance to cold of dark-complexioned men.

"BOULANS."

"BOUTON d'Alep."

BOWEN, Prof., doubts as to the importance of inheritance.

BOWMAN, Mr., hereditary peculiarities in the human eye. -hereditary cataract.

BRACE, Mr., on Hungarian cattle.

Brachycome iberidifolia.

BRACTS, unusual development of, in gooseberries.

BRADLEY, Mr., effect of grafts upon the stock in the ash. -effect of foreign pollen upon apples. -on change of soil.

"BRAHMA Pootras," a new breed of fowls.

BRAIN, proportion of, in hares and rabbits.

BRANDT, Dr., origin of the goat. -correlation of teeth and hair.

Brassica, varieties of, with enlarged stems.

Brassica asperifolia.

Brassica napus.

Brassica oleracea.

Brassica rapa.

BRAUN, A., bud-variation in the vine. -in the currant. -in Mirabilis jalapa. -in Cytisus adami. -on reversion in the foliage of trees. -spontaneous production of Cytisus purpureo-elongatus. -reversion of flowers by stripes and blotches. -excess of nourishment a source of variability.

BRAZIL, cattle of.

BREAD-FRUIT, varieties of. -sterility and variability of.

BREE, W.T., bud-variation in Geranium pratense and Centaurea cyanus. -by tubers in the dahlia. -on the deafness of white cats with blue eyes.

BREEDING, high, dependent on inheritance.

BREEDS, domestic, persistency of. -artificial and natural. -extinction of. -of domestic cats. -of pigs produced by crossing. -of cattle. -of goats.

BREHM, on Columba amaliae.

BRENT, B.P., number of mammae in rabbits. -habits of the tumbler pigeon. -Laugher pigeon. -colouring of the kite tumbler. -crossing of the pigeon with Columba oenas. -mongrels of the trumpeter pigeon. -close interbreeding of pigeons. -opinion on Aldrovandi's fowls. -on stripes in chickens. -on the combs of fowls. -double-spurred Dorking fowls. -effect of crossing on colour of plumage in fowls. -incubatory instinct of mongrels between non-setting varieties of fowls. -origin of the domestic duck. -fertility of the hook-billed duck. -occurrence of the plumage of the wild duck in domestic breeds. -voice of ducks. -occurrence of a short upper mandible in crosses of hook-billed and common ducks. -reversion in ducks produced by crossing. -variation of the canary-bird. -fashion in the canary. -hybrids of canary and finches.

Charles Darwin

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