FALCONS, sterility of, in captivity.
FALKLAND Islands, horses of the. -feral pigs of the. -feral cattle of the. -feral rabbits of the.
FALLOW deer.
FANTAIL pigeons. -figured. -furculum of, figured. -history of. -absence of oil-gland in.
FAROE Islands, pigeons of the.
FASHION, influence of, in breeding.
FASTIGIATE trees.
FAUNAS, geographical differences of.
"FAVOURITE" bull.
FEATHERS, homologous variation in.
FEET, of pigeons, individual differences of. -correlations of external characters in.
FEET and beak, correlation of, in pigeons.
FELIDAE, fertility of, in captivity.
Felis bubastes.
Felis caffra.
Felis caligulata.
Felis chaus.
Felis jubata.
Felis lybica.
Felis maniculata.
Felis manul.
Felis ornata.
Felis sylvestris.
Felis torquata.
FEMALE, affected by male element.
FEMALE flowers, in male panicle of maize.
FENN, Mr., grafting potatoes.
FENNEL, Italian variety of.
FERAL cats. -cattle. -rabbits. -Guinea fowl. -animals and plants, reversion in.
FERGUSON, Mr., supposed plurality of origin of domestic fowls. -chickens of black game-fowls. -relative size of eggs of fowls. -yolk of eggs of game-fowls. -early pugnacity of game-cocks. -voice of the Malay fowl. -effects of interbreeding on fowls. -selection in Cochin-China fowls. -on fashion in poultry.
FERNANDEZ, on Mexican dogs.
FERNS, reproduction of abnormal forms of, by spores. -non-diffusion of cell-gemmules in.
FERRETS.
FERTILISATION, artificial, of the St. Valery apple.
FERTILITY, various degrees of, in sheep. -unlimited mutual, of breeds of pigeons. -comparative, of mongrels and hybrids. -influence of nourishment on. -diminished by close interbreeding. -reduced, of Chillingham wild cattle. -of domesticated varieties when crossed.
Festuca, species of, propagated by bulblets.
FILBERTS, spared by tomtits.
FILIPPI, on the breeding of branchiferous tritons.
FINCHES, general sterility of, in captivity.
FINNIKIN (pigeon).
FINNOCCHIO.
FIR, Scotch, acclimatisation of.
FISH, Mr., advantage of change of soil to plants.
FISHES, regeneration of portions of fins of. -variability of, when kept in tanks. -marine, living in fresh water. -double monsters of.
FISSION and gemmation.
FITCH, Mr., persistency of a variety of the pea.
FITTEST, survival of the.
FITZINGER, origin of sheep. -African maned sheep.
FITZPATRICK, Mr., potato-grafting.
FIXEDNESS of character, conditions of, discussed.
FLAX, found in the Swiss lake-dwellings. -climatal difference in products of.
FLEECE, fineness of, in Austrian merinos.
FLEISCHMANN, on German sheep crossed with merinos.
"FLORENTINER-TAUBE."
FLOUNDER.
FLOURENS, crossing of wolf and dog. -prepotency of the jackal over the dog. -hybrids of the horse and ass. -breeding of monkeys in Europe.
FLOWER-GARDEN, earliest known, in Europe.
FLOWERS, capricious transmission of colour-varieties in. -tendency to uniformity in striped. -scorching of, dependent on colour. -change in, caused by conditions of life. -rudimentary. -relative position of, to the axis.
FOETATION, abdominal.
FOLEY, Mr., wild varieties of pears.
FOLIAGE, inherited peculiarities of. -variegation of. -bud-variation in.
FOOD, influence of, on the pig. -on cattle. -excess of, a cause of variability.
FORBES, D., on Chilian sheep. -on the horses of Spain, Chili, and the Pampas.
Formica rufa.
FORTUNE, R., sterility of the sweet potato in China. -development of axillary bulbs in the yam.
FOWL, common, breeds of -supposed plurality of origin. -early history of. -causes of production of breeds of. -origin of, from Gallus bankiva. -feral, notices of. -reversion and analogous variation in. -"cuckoo" sub-breeds of. -history of. -structural characters of. -sexual peculiarities of. -external differences of. -differences of breeds of, from G. bankiva. -osteological characters of. -effects of disuse of parts in. -feral. -polydactylism in. -fertility of, increased by domestication. -sterility of, under certain conditions. -influence of selection on. -evils of close interbreeding of. -crossing of. -prepotency of transmission in. -rudimentary organs in. -crossing of non-sitting varieties of. -homology of wing and leg feathers in. -hybrids of, with pheasants and Gallus sonneratii. -black-skinned. -black, preyed upon by the osprey in Ireland. -five-toed, mentioned by Columella. -rumpless, tailed chickens produced by. -Dorking, crosses of. -form of comb and colour of plumage in. -game, crossing of white and black. -five-spurred. -Spanish, liable to suffer from frost. -Polish, peculiarities of skull of.