SigPhi · Charles Darwin

The Variation of Animals and Plants under Domestication

Page 69 of 72

—antiquity of the domestication of the silkworm in China, 8.

JUMPERS, a breed of fowls, 7.

JUNIPER, variations of the, 10 (2).

JUSSIEU, A. de, structure of the pappus in _Carthamus,_ 24.

KAIL, Scotch, reversion in, 13.

KALES, 9.

KALM, P., on maize, 9, 24; —introduction of wheat into Canada, 9; —sterility of trees growing in marshes and dense woods, 18.

KANE, Dr., on Esquimaux dogs, 1.

KARAKOOL sheep, 3.

KARKEEK, on inheritance in the horse, 12.

KATTYWAR horses, 2.

KERNER, on the culture of Alpine plants, 18; —definite action of conditions, 23.

KESTREL, breeding in captivity, 18.

“KHANDÉSI,” 5.

KHANG-HI, selection of a variety of rice by, 20.

KIANG, 13.

KIDD, on the canary-bird, 8, 14.

KIDNEY bean, 10; KIDNEYS, compensatory development of the, 24; —shape of, in birds influenced by the form of the pelvis, 26.

KING, Col., domestication of rock doves from the Orkneys, 6 (2).

KING, Dr., on _Paritium,_ 11.

KING, P. P., on the dingo, 1 (2).

KIRBY and Spence, on the growth of galls, 23.

KIRGHISIAN sheep, 3.

KITE, breeding in captivity, 18.

KLEINE, variability of bees, 8.

KNIGHT, ANDREW, on crossing horses of different breeds, 2; —crossing varieties of peas, 9, 17; —persistency of varieties of peas, 9; —origin of the peach, 10; —hybridisation of the morello by the Elton cherry, 10; —on seedling cherries, 10; —variety of the apple not attacked by coccus, 10; —broad variety of the cock’s-comb, 10; —bud variation in the cherry and plum, 11; —crossing of white and purple grapes, 11; —experiments in crossing apples, 11, 17; —hereditary disease in plants, 12; —crossed varieties of wheat, 17; —necessity of intercrossing in plants, 19; —correlated variation of head and limbs, 8.

KNOX, Mr., breeding of the eagle owl in captivity, 18.

KOCH, degeneracy in the turnip, 9.

KOHLRABI, 9.

KÖLREUTER, reversion in hybrids, 11, 13; —acquired sterility of crossed varieties of plants, 10, 16; —on the hollyhock, 16; —crossing varieties of tobacco, 16; —effects of conditions of growth upon fertility in _Mirabilis,_ 18; —great development of tubers in hybrid plants, 18; —inheritance of plasticity, 21; —repeated crossing a cause of variation, 22; —number of pollen-grains necessary for fertilisation, 27.

“KRAUSESCHWEIN,” 3.

KROHN, on the double reproduction of Medusæ, 27.

“KROPF-TAUBEN,” 5.

LABAT, on the tusks of feral boars in the West Indies, 5; —on French wheat grown in the West Indies, 24; —on the culture of the vine in the West Indies, 24.

LACHMANN, on gemmation and fission, 27.

LACTATION, imperfect, hereditary, 12; —deficient, of wild animals in captivity, 18.

LADRONE Islands, cattle of, 3.

LA GASCA, Prof., individual variation in wheat, 9.

LAING, Mr., resemblance of Norwegian and Devonshire cattle, 3.

LAKE-DWELLINGS, sheep of, 3; —cattle of, 3; —absence of the fowl in, 7; —cereals of, 9; —peas found in, 9; —beans found in, 9.

LAMARE-PIQUOT, observations on half-bred North American wolves, 1.

LAMBERT family, 12, 14.

LAMBERTYE, on strawberries, 10 (2); LANDT, L., on sheep in the Faroe Islands, 16.

LANKESTER, RAY, on longevity, 27.

LA PLATA, wild dogs of, 1; —feral cat from, 1.

LARCH, 24.

LARKSPURS, insect agency necessary for the full fecundation of, 12.

LASTERYE, merino sheep in different countries, 3.

LATENT characters, 13.

LATHAM, on the fowl not breeding in the extreme north, 18.

_Lathyrus,_ 13.

LA TOUCHE, J. D., on a Canadian apple with dimidiate fruit, 11 (2).

“LATZ-TAUBE,” 5.

LAUGHER pigeon, 5, 6.

LAWRENCE, J., production of a new breed of foxhounds, 1; —occurrence of canines in mares, 2; —on inheritance in the horse, 12 (2).

LAWSON, Mr., varieties of the potato, 9.

LAXTON, Mr., bud-variation in the gooseberry, 11; —crossing of varieties of the pea, 11 (2); —weakness of transmission in peas, 14; LAYARD, E. L., resemblance of a Caffre dog to the Esquimaux breed, 1, 23; —crossing of the domestic cat with _Felis caffra,_ 1; —feral pigeons in Ascension, 6; —domestic pigeons of Ceylon, 6; LE COMPTE family, blindness inherited in, 14.

LE COUTEUR, J., varieties of wheat, 9; —acclimatisation of exotic wheat in Europe, 9; —adaptation of wheat to soil and climate, 9; —on change of soil, 18; —selection of wheat, 20; —natural selection in wheat, 21; —cattle of Jersey, 21.

LEDGER, Mr., on the llama and alpaca, 20.

LEE, Mr., his early culture of the pansy, 10.

LEFOUR, period of gestation in cattle, 3.

LEGRAIN, falsified experiments of, 17.

LEGS, of fowls, effects of disuse on, 7; —characters and variations of, in ducks, 24.

LEGUAT, cattle of the Cape of Good Hope, 3.

LEHMANN, occurrence of wild double-flowered plants near a hot spring, 18.

LEIGHTON, W. A., propagation of a weeping yew by seed, 12.

LEITNER, effects of removal of anthers, 18.

LEMMING, 18.

LEMOINE, variegated _Symphytum_ and _Phlox,_ 11.

LEMON, 10; —orange fecundated by pollen of the, 11.

LEMURS, hybrid, 4.

LEPORIDES, 18.

LEPSIUS, figures of ancient Egyptian dogs, 1; —domestication of pigeons in ancient Egypt, 6.

LEREBOULLET, double monsters of fishes, 26.

LESLIE, on Scotch wild cattle, 3.

LESSONA, on regrowth, 27; LETHBRIDGE, previous impregnation, 11.

LEUCKART, on the larva of Cecidomyidæ, 27.

LEWES, G. H., on Pangenesis, 27.

LEWIS, G., cattle of the West Indies, 21.

LHERBETTE and Quatrefages, on the horses of Circassia, 16, 21.

LICHENS, sterility in, 18.

LICHTENSTEIN, resemblance of Bosjesman’s dogs to _Canis mesomelas,_ 1; —Newfoundland dog at the Cape of Good Hope, 1.

LIEBIG, differences in human blood, according to complexion, 23.

LIEBREICH, occurrence of pigmentary retinitis in deaf-mutes, 25.

LILACS, 18.

LILIACEÆ, contabescence in, 18.

LIMBS, regeneration of, 27.

LIMBS and head, correlated variation of, 25.

LIME, effect of, upon shells of the mollusca, 23.

LIME-TREE, changes of, by age, 10, 11.

LIMITATION, sexual, 14.

LIMITATION, supposed, of variation, 28.

—peloric, crossed with the normal form, 14; —sterility of, 18.

LINDLEY, JOHN, classification of varieties of cabbages, 9; —origin of the peach, 10; —influence of soil on peaches and nectarines, 10; —varieties of the peach and nectarine, 10; —on the New Town pippin, 10; —freedom of the Winter Majetin apple from coccus, 10; —production of monœcious Hautbois strawberries by bud-selection, 10; —origin of the large tawny nectarine, 11; —bud-variation in the gooseberry, 11; —hereditary disease in plants, 12; —on double flowers, 18; —seeding of ordinarily seedless fruits, 18; —resistance of individual plants to cold, 24.

LINNÆUS, summer and winter wheat regarded as distinct species by, 9; —sterility of Alpine plants in gardens, 18; —recognition of individual reindeer by the Laplanders, 22; —growth of tobacco in Sweden, 24.

LINNET, 18.

_Linum,_ 18.

LION, fertility of, in captivity, 18 (2).

LIPARI, feral rabbits of, 4.

LIVINGSTONE, Dr., striped young pigs on the Zambesi, 3; —domestic rabbits at Loanda, 4; —use of grass-seeds as food in Africa, 9; —planting of fruit-trees by the Batokas, 9; —taming of animals among the Barotse, 18; —selection practised in South Africa, 20 (2).

LIVINGSTONE, Mr., disuse a cause of drooping ears, 24.

LIZARDS, reproduction of tail in, 24.

LLAMA, selection of, 20.

LLOYD, Mr., taming of the wolf, 1; —English dogs in northern Europe, 1; —fertility of the goose increased by domestication, 8; —number of eggs laid by the wild goose, 16; —breeding of the capercailzie in captivity, 18.

LOANDA, domestic rabbits at, 4.

_Loasa,_ hybrid of two species of, 15.

_Lobelia,_ reversion in hybrids of, 11; LOCKHART, Dr., on Chinese pigeons, 6.

LOCUST-TREE, 23.

LOISELEUR-DESLONGCHAMPS, originals of cultivated plants, 9; —Mongolian varieties of wheat, 9; —characters of the ear in wheat, 9; —acclimatisation of exotic wheat in Europe, 9; —effect of change of climate on wheat, 9; —on the supposed necessity of the coincident variation of weeds and cultivated plants, 9; —advantage of change of soil to plants, 18.

_Lolium temulentum,_ variable presence of barbs in, 9.

LOOCHOO Islands, horses of, 2.

“LOTAN” tumbler pigeon, 5.

LOUDON, J. W., varieties of the carrot, 9; —short duration of varieties of peas, 9; —on the glands of peach-leaves, 10; —presence of bloom on Russian apples, 10; —origin of varieties of the apple, 10; —varieties of the gooseberry, 10; —on the nut tree, 10; —varieties of the ash, 10; —varieties of the Scotch fir, 10 (2); —varieties of the hawthorn, 10; —variation in the persistency of leaves on the elm and Turkish oak, 10; —importance of cultivated varieties, 10; —variation of dahlias from the same seed, 10; —production of Provence roses from seeds of the moss-rose, 11; —effect of grafting the purple-leaved upon the common hazel, 11; —nearly evergreen Cornish variety of the elm, 24.

LOW, on the pigs of the Orkney Islands, 3.

LOW, Prof., pedigrees of greyhounds, 12; —origin of the dog, 1; —inheritance of qualities in horses, 2; —comparative powers of English racehorses, Arabs, etc., 2; —British breeds of cattle, 3; —wild cattle of Chartley, 3; —effect of abundance of food on the size of cattle, 3; —effects of climate on the skin of cattle, 3, 25; —selection in Hereford cattle, 20; —formation of new breeds, 21; LOWE, Mr., on hive bees, 8.

LOWE, Rev. Mr., on the range of _Pyrus malus_ and _P. acerba,_ 10.

LOWNE, Mr., monsters, 26; —on gemmules, 27.

“LOWTUN” tumbler pigeon, 5.

LUBBOCK, Sir J., developments of the Ephemeridæ, 27.

LUCAS, P., effects of cross-breeding on the female, 11; —hereditary affections of the eye, 12 (2); —inheritance of anomalies in the human eye and in that of the horse, 12; —inheritance of polydactylism, 12; —morbid uniformity in the same family, 12; —inheritance of mutilations, 12; —persistency of character in breeds of animals in wild countries, 14; —supposed rules of transmission in crossing animals, 14; —sexual limitations of transmission of peculiarities, 14 (2); —absorption of the minority in crossed races, 15; —crosses without blending of certain characters, 15; —variability dependent on reproduction, 22; —period of action of variability, 22; —inheritance of deafness in cats, 25; —complexion and constitution, 25.

LUCAZE-DUTHIERS, structure and growth of galls, 23.

LUCAE, Prof., on the masked pig, 3; —on pigs, 24.

LUIZET, grafting of a peach-almond on a peach, 10.

LUTKE, cats of the Caroline Archipelago, 1.

LUXURIANCE, of vegetative organs, a cause of sterility in plants, 18 (2).

LYONNET, on the scission of _Nais,_ 27.

_Lythrum,_ trimorphic species of, 27.

_Lytta vesicatoria,_ affecting the kidneys, 27.

_Macacus,_ species of, bred in captivity, 18.

MACAULAY, Lord, improvement of the English horse, 20.

M’CLELLAND, Dr., variability of fresh-water fishes in India, 22.

M’COY, Prof., on the dingo, 1.

MACFAYDEN, influence of soil in producing sweet or bitter oranges from the same seed, 10.

MACGILLIVRAY, domestication of the rock-dove, 6; —feral pigeons in Scotland, 6; —number of vertebræ in birds, 7; —on wild geese, 8; —number of eggs of wild and tame ducks, 16.

MACKENZIE, Sir G., peculiar variety of the potato, 9.

MACKENZIE, P., bud-variation in the currant, 11.

MACKINNON, Mr., horses of the Falkland Islands, 2; —feral cattle of the Falkland Islands, 3.

MACKNIGHT, C., on interbreeding cattle, 17.

MACNAB, Mr., on seedling weeping birches, 12; —non-production of the weeping beech by seed, 12.

MADAGASCAR, cats of, 1.

MADDEN, H., on interbreeding cattle, 17.

MADEIRA, rock pigeon of, 6.

MAGNUS, Herr, on potato-grafting, 11; MAIZE, its unity of origin, 9; —antiquity of, 9; —with husked grains said to grow wild, 9; —variation of, 7; —irregularities in the flowers of, 9; —persistence of varieties, 9; —adaptation of, to climate, 9, 24; —extinct Peruvian varieties of, 28.

MALAY fowl, 7.

MALAY Archipelago, horses of, 2; —short-tailed cats of, 1; —striped young wild pigs of, 3; —ducks of, 8.

MALE, influence of, on the fecundated female, 11; —supposed influence of, on offspring, 14.

MALE flowers, appearance of, among female flowers in maize, 9.

MALFORMATIONS, hereditary, 14.

MALINGIÉ-NOUEL, on sheep, 3; —English sheep in France, 21.

MALM, eyes of flat fish, 13.

MAMMÆ, variable in number in the pig, 3; —rudimentary, occasional full development of, in cows, 3, 24; —four present in some sheep, 3; —variable in number in rabbits, 4; —latent functions of, in male animals, 13, 24.

MANGLES, Mr., annual varieties of the heartsease, 24.

MANTEGAZZA, abnormal growth of spur of cock, 27; —on Pangenesis, 27.

MANTELL, Mr., taming of birds by the New Zealanders, 18.

MANU, domestic fowl noticed in the Institutes of, 7.

MANURE, effect of, on the fertility of plants, 18.

MANX cats, 1, 14.

MARCEL DE SERRES, fertility of the ostrich, 18.

MARIANNE Islands, varieties of _Pandanus_ in, 22.

MARKHAM, GERVASE, on rabbits, 4, 20.

MARKHOR, probably one of the parents of the goat, 3.

MARQUAND, cattle of the Channel Islands, 3.

MARRIMPOEY, inheritance in the horse, 12.

MARROW, vegetable, 10.

MARRYATT, Capt., breeding of asses in Kentucky, 21.

MARSDEN, notice of _Gallus giganteus,_ 7.

MARSHALL, Mr., voluntary selection of pasture by sheep, 3; —adaptation of wheats to soil and climate, 9; —segregation of herds of sheep, 16; —advantage of change of soil to wheat and potatoes, 18; —fashionable change in the horns of cattle, 20; —sheep in Yorkshire, 21.

MARTENS, E. VON, on _Achatinella,_ 13.

MARTIN, W. C. L., origin of the dog, 1; —Egyptian dogs, 1; —barking of a Mackenzie River dog, 1; —African hounds in the Tower menagerie, 3; —on dun horses and dappled asses, 2; —breeds of the horse, 2; —wild horses, 2; —Syrian breeds of asses, 2; —asses without stripes, 2; —effects of cross-breeding on the female in dogs, 11; —striped legs of mules, 13.

MARTINS, defective instincts of silkworms, 8.

MARTIUS, C., fruit-trees of Stockholm, 24.

MASON, W., bud-variation in the ash, 11.

MASTERS, Dr., on bud-variation and reversion, 11; —on pollen within ovules, 27; —reversion in the spiral-leaved weeping willow, 11; —on peloric flowers, 13; —on _Opuntia,_ 23; —position as a cause of pelorism, 26 (2).

MASTERS, Mr., persistence of varieties of peas, 9; —reproduction of colour in hyacinths, 12; —on hollyhocks, 16; —selection of peas for seed, 20; —reversion by the terminal pea in the pod, 26.

MASTIFF, sculptured on an Assyrian monument, 1, 28; —Tibetan, 1, 23.

MATTHEWS, PATRICK, on forest trees, 21.

MAUCHAMP merino sheep, 3.

MAUDUYT, crossing of wolves and dogs in the Pyrenees, 1.

MAUND, Mr., crossed varieties of wheat, 17.

MAUPERTUIS, axiom of “least action,” 1.

MAURITIUS, importation of goats into, 3.

MAW, G., effects of change of climate, 24; —correlation of contracted leaves and flowers in pelargoniums, 25 (2).

MAWZ, fertility of _Brassica rapa,_ 18.

MAXIMOWICZ, direct action of pollen, 11.

MAYERS, on gold-fish in China, 8.

MECKEL, on the number of digits, 12; —correlation of abnormal muscles in the leg and arm, 25.

MEDUSÆ, development of, 27 (2).

MEEHAN, Mr., weeping peach, 12; —effects of parasites, 23; —comparison of European and American trees, 23.

_Meles taxus,_ 18.

MELONS, 10 (2); —mongrel supposed to be produced from a twin-seed, 11; —inferiority of, in Roman times, 20; —changes in, by culture and climate, 23; —serpent, correlation of variations in, 25; —analogous variations in, 26.

MEMBRANES, false, 24 (2).

MÉNÉTRIES, on the stomach of _Strix grallaria,_ 24.

MENINGITIS, tubercular, inherited, 14.

METAGENESIS, 27.

METAMORPHOSIS, 27.

METAMORPHOSIS and development, 27 (2).

METZGER, on the supposed species of wheat, 9 (2); —tendency of wheat to vary, 9; —cultivation of American maize in Europe, 9, 26; —on cabbages, 9; —acclimatisation of Spanish wheat in Germany, 12; —advantage of change of soil to plants, 18; —on rye, 22; —cultivation of different kinds of wheat, 22.

MEXICO, dog from, with tan spots on the eyes, 1; —colours of feral horses in, 2.

MEYEN, on seeding of bananas, 18.

MICE, grey and white, colours of, not blended by crossing, 15; —rejection of bitter almonds by, 21; —naked, 23.

MICHAUX, F., roan-coloured feral horses of Mexico, 2; —origin of domestic turkey, 8; —on raising peaches from seed, 10.

MICHEL, F., selection of horses in mediæval times, 20; —horses preferred on account of slight characters, 20.

MICHELY, effects of food on caterpillars, 23; MICROPHTHALMIA, associated with defective teeth, 25.

MIDDENS, Danish, remains of dogs in, 1, 28.

MIGNONETTE, 21, 24.

MILLET, 10.

MILLS, J., diminished fertility of mares when first turned out to grass, 18.

MILNE-EDWARDS, on the development of the crustacea, 27.

_Milvus niger,_ 18.

MINOR, W. C., gemmation and fission in annelids, 27.

_Mirabilis,_ fertilisation of, 27; MITCHELL, Dr., effects of the poison of the rattlesnake, 23.

MITFORD, Mr., notice of the breeding of horses by Erichthonius, 20.

MIVART, Mr., rudimentary organs, 24.

MOCCAS Court, weeping oak at, 12.

MOGFORD, horses poisoned by fool’s parsley, 25.

MÖLLER, L., effects of food on insects, 23.

MOLE, white, 25.

MOLL and Gayot, on cattle, 3, 15, 20.

MOLLUSCA, change in shells of, 23.

MONKE, Lady, culture of the pansy by, 10.

MONKEYS, rarely fertile in captivity, 18.

MONNIER, identity of summer and winter wheat, 9.

MONSTERS, double, 26 (2).

MONSTROSITIES, occurrence of, in domesticated animals and cultivated plants, 10, 22; —due to persistence of embryonic conditions, 13; —occurring by reversion, 13; —a cause of sterility, 18; —caused by injury to the embryo, 22.

MOOR, J. H., deterioration of the horse in Malasia, 2.

MOORCROFT, Mr., on Hasora wheat, 9; —melon of Kaschmir, 23; —varieties of the apricot cultivated in Ladakh, 10; —varieties of the walnut cultivated in Kaschmir, 27.

MOORE, Mr., on breeds of pigeons, 5 (2), 6 (3); —on ground tumblers, 6.

MOORUK, fertility of, in captivity, 18.

MOQUIN-TANDON, original form of maize, 9; —variety of the double columbine, 10; —position as a cause of pelorism in flowers, 26; —tendency of peloric flowers to become irregular, 14; —correlation in the axis and appendages of plants, 25; —fusion of homologous parts in plants, 26; —on a bean with monstrous stipules and abortive leaflets, 26; —conversion of parts of flowers, 27.

MORLOT, dogs of the Danish Middens, 1; —sheep and horse of the Bronze period, 28.

MOROCCO, estimation of pigeons in, 6.

MORREN, grafts of Abutilon, 11; —on pelorism, 13; —non-coincidence of double flowers and variegated leaves, 18.

MORRIS, Mr., breeding of the kestrel in captivity, 18.

MORSE, Dr., digits of birds, 25.

MORTON, Lord, effect of fecundation by a quagga on an Arab mare, 11.

MORTON, Dr., origin of the dog, 1.

_Morus alba,_ 10.

MOSCOW, rabbits of, 4 (2); —effects of cold on pear-trees at, 24.

MOSSES, sterility in, 18; —retrogressive metamorphosis in, 27.

MOSS-ROSE, probable origin of, from _Rosa centifolia,_ 11; —Provence roses produced from seeds of, 11.

MOSTO, Cada, on the introduction of rabbits into Porto Santo, 4.

MOT-MOT, mutilation of feathers inherited, 12.

MOTTLING of fruits and flowers, 11.

MOUNTAIN-ASH, 21.

MOUSE, Barbary, 18.

“MÖVEN-TAUBE,” 5.

MOWBRAY, Mr., on the eggs of game fowls, 7; —early pugnacity of game cocks, 7; —diminished fecundity of the pheasant in captivity, 18.

MOWBRAY, Mr., reciprocal fecundation of _Passiflora alata_ and _racemosa,_ 17.

MULATTOS, character of, 13.

MULBERRY, 10, 22.

MULE and hinny, differences in the, 14.

MULES, striped colouring of, 13; —obstinacy of, 13; —production of, among the Romans, 16; —noticed in the Bible, 20.

MÜLLER, FRITZ, reproduction of orchids, 17; —development of crustacea, 27; —direct action of pollen, 11; MÜLLER, H., on the face and teeth in dogs, 1, 3, 26.

MÜLLER, J., tendency to variation, 22; —atrophy of the optic nerve consequent on destruction of the eye, 24; —on gemmation and fission, 27; —identity of ovules and buds, 27; —special affinities of the tissues, 27.

MÜLLER, MAX, antiquity of agriculture, 21.

MULTIPLICITY of origin of pigeons, hypotheses of, discussed, 6.

MUNIZ, F., on Niata cattle, 3.

MUNRO, R., on the fertilisation of orchids, 17; MURIE, Dr., size of hybrids, 17.

MURPHY, J. J., the structure of the eye not producible by selection, 20.

MUSCLES, effects of use on, 24.

MUSK duck, feral hybrid of, with the common duck, 6.

MUTILATIONS, inheritance or non-inheritance of, 12, 27 (2).

MYATT, on a five-leaved variety of the strawberry, 10.

MYOPIA, hereditary, 12.

MYRIAPODA, regeneration of lost parts in, 24, 27.

NAILS, growing on stumps of fingers, 27.

NAIS, scission of, 27.

NAMAQUAS, cattle of the, 3, 20.

NARCISSUS, double, becoming single in poor soil, 18.

NARVAEZ, on the cultivation of native plants in Florida, 9.

_Nasua,_ sterility of, in captivity, 18.

“NATAS” or Niatas, a South American breed of cattle, 3.

NATHUSIUS, H. VON, on striped horses, 2; —on the pigs of the Swiss lake-dwellings, 3; —on the races of pigs, 3; —convergence of character in highly-bred pigs, 3, 21; —causes of changes in the form of the pig’s skull, 3 (2); —changes in breeds of pigs by crossing, 3; —change of form in the pig, 23; —effects of disuse of parts in the pig, 24; —period of gestation in the pig, 3; —appendages to the jaw in pigs, 3; —period of gestation in sheep, 3; —on Niata cattle, 3; —on shorthorn cattle, 17; —in the sheep, 17; —in pigs, 17; —unconscious selection in cattle and pigs, 20; NATO, P., on the Bizzarria orange, 11.

NATURAL selection, its general principles, Introduction.

NATURE, sense in which the term is employed, Introduction.

NAUDIN, supposed rules of transmission in crossing plants, 14; —on the nature of hybrids, 13 (2); —essences of the species in hybrids, 27 (2); —reversion in flowers by stripes and blotches, 13; —crossing of peloric _Linaria_ with the normal form, 14; —prepotency of transmission of _ Datura stramonium_ when crossed, 14; —on the pollen of _Mirabilis_ and of hybrids, 11; —rudimentary tendrils in gourds, 24; —relation between the size and number of the fruit in _Cucurbita pepo,_ 26; —acclimatisation of Cucurbitaceæ, 24; —production of fruit by sterile hybrid Cucurbitaceæ, 18; —incapacity of the cucumber to cross with other species, 10.

NECTARINE, 10; —derived from the peach, 10 (2); —hybrids of, 10; —persistency of characters in seedling, 10; —origin of, 10; —glands in the leaves of the, 21; —analogous variation in, 26.

NECTARY, variations of, in pansies, 10.

NEES, on changes in the odour of plants, 23.

“NEGRO” cat, 1.

NEGROES, polydactylism in, 12; —selection of cattle practised by, 20.

NEOLITHIC period, domestication of _Bos longifrons_ and _ primigenius_ in the, 3; —cattle of the, distinct from the original species, 3; —domestic goat in the, 3; —cereals of the, 9.

NERVE, optic, atrophy of the, 24.

NEUMEISTER, on the Dutch and German pouter pigeons, 5; —on the Jacobin pigeon, 5; —duplication of the middle flight feather in pigeons, 5; —on a peculiarly coloured breed of pigeons, “Staarhalsige Taube,” 5; —fertility of hybrid pigeons, 6; —mongrels of the trumpeter pigeon, 14; —period of perfect plumage in pigeons, 14; —advantage of crossing pigeons, 17.

NEURALGIA, hereditary, 14.

NEW ZEALAND, feral cats of, 1; —cultivated plants of, 9.

NEWFOUNDLAND dog, modification of, in England, 1.

NEWMAN, E., sterility of Sphingidæ under certain conditions, 18.

NEWPORT, G., non-copulation of _Vanessæ_ in confinement, 18; —fertilisation of the ovule in batrachia, 27.

NEWT, polydactylism in the, 12.

NEWTON, A., absence of sexual distinctions in the Columbidæ, 5; —production of a “black-shouldered” peahen among the ordinary kind, 8; —on hybrid ducks, 18.

NGAMI, Lake, cattle of, 3.

“NIATA” cattle, 3; —prepotency of transmission of character by, 14.

“NICARD” rabbit, 4.

NICHOLSON, Dr., on the cats of Antigua, 1; —on the sheep of Antigua, 3.

_Nicotiana,_ crossing of varieties and species of, 3; —prepotency of transmission of characters in species of, 14; —contabescence of female organs in, 18.

NIEBUHR, on the heredity of mental characteristics in some Roman families, 14.

NILSSON, Prof., on the barking of a young wolf, 1; —parentage of European breeds of cattle, 3 (2); NIND, Mr., on the dingo, 1.

NITZSCH, on the absence of the oil-gland in certain Columbæ, 5.

NON-INHERITANCE, causes of, 12.

NORDMANN, dogs of Awhasie, 1.

NORMANDY, pigs of, with appendages under the jaw, 3.

NORWAY, striped ponies of, 2.

NOTT and Gliddon, on the origin of the dog, 1; —mastiff represented on an Assyrian tomb, 1; —on Egyptian dogs, 1; —on the Hare Indian dog, 1.

_Notylia,_ 17.

NOURISHMENT, excess of, a cause of variability, 22.

NUMBER, importance of, in selection, 21.

_Numida ptilorhyncha,_ the original of the Guinea-fowl, 8.

NUN pigeon, 5; —known to Aldrovandi, 6.

NUTMEG-TREE, 21.

—pyramidal, 10; —Hessian, 10; —late-leaved, 10; —valueless as timber at the Cape of Good Hope, 23; —changes in, dependent on age, 11; —galls of the, 23.

OATS, wild, 9; OBERLIN, change of soil beneficial to the potato, 18.

ODART, Count, varieties of the vine, 10, 23; —bud-variation in the vine, 11.

_Œcidium,_ 23.

OGLE, Dr. J. W., inherited deficient phalanges, 12; OIL-GLAND, absence of, in fantail pigeons, 5 (2).

OLDFIELD, Mr., estimation of European dogs among the natives of Australia, 20.

OLEANDER, stock affected by grafting in the, 11.

OLLIER, Dr., insertion of the periosteum of a dog beneath the skin of a rabbit, 27.

ONIONS, crossing of, 15; —white, liable to the attacks of fungi and disease, 21, 25.

—formation of pollen by a petal in, 27.

ORCHIDS, reproduction of, 11 (2), 17.

ORFORD, Lord, crossing greyhounds with the bulldog, 1.

ORGANISMS, origin of, Introduction.

ORGANISATION, advancement in, Introduction.

ORGANS, rudimentary and aborted, 24; —multiplication of abnormal, 27.

ORIOLE, assumptions of hen-plumage by a male in confinement, 18.

ORKNEY Islands, pigs of, 3; —pigeons of, 6.

ORTHOPTERA, regeneration of hind legs in the, 24.

ORTON, R., on the effects of cross-breeding on the female, 11; —on the Manx cat, 14; —on mongrels from the silk fowl, 14; —infertility of geese in Quito, 18.

OSBORNE, Dr., inherited mottling of the iris, 12.

OSPREY, preying on black fowls, 21.

OSTEN-SACKEN, Baron, on American oak-galls, 23.

OSTRICH, diminished fertility of the, in captivity, 18.

OSTYAKS, selection of dogs by the, 20.

OTTER, 18.

“OTTER” sheep of Massachusetts, 3.

OUDE, feral humped cattle in, 3.

OUISTITI, breed in Europe, 18.

OVARY, variation of, in _Cucurbita moschata,_ 10; —development of, independently of pollen, 11.

_Ovis montana,_ 3.

OVULES and buds, identity of nature of, 27.

OWEN, Capt., on stiff-haired cats at Mombas, 1.

OWEN, Prof. R., palæontological evidence as to the origin of dogs, 1; —on the skull of the “Niata” cattle, 3; —on fossil remains of rabbits, 3; —on the significance of the brain, 4; —theory of reproduction and parthenogenesis, 27.

OWL, eagle, breeding in captivity, 18.

_Oxalis,_ trimorphic species of, 27.

_Oxalis rosea,_ 17.

OXLEY, Mr., on the nutmeg-tree, 21.

OYSTERS, differences in the shells of, 23.

PACA, sterility of the, in confinement, 4.

PACIFIC Islands, pigs of the, 3.

PADUA, earliest known flower-garden at, 20.

PADUAN fowl of Aldrovandi, 7.

PÆONY-TREE, ancient cultivation of, in China, 20.

PAGET, on the Hungarian sheep-dog, 1.

PAGET, Sir J., inheritance of cancer, 12; —hereditary elongation of hairs in the eyebrow, 12; —regrowth of extra digits, 12; —circumcision, 12; —period of inheritance of cancer, 14; —on _Hydra,_ 24; —on the healing of wounds, 24; —on the reparation of bones, 24; —growth of hair near inflamed surfaces or fractures, 24; —on false membranes, 24; —compensatory development of the kidney, 24; —bronzed skin in disease of supra-renal capsules, 25; —unity of growth and gemmation, 27; —independence of the elements of the body, 27; —affinity of the tissues for special organic substances, 27.

PALLAS, on the influence of domestication upon the sterility of —hypothesis that variability is wholly due to crossing, 4, 8, 22 (2); —on the origin of the dog, 1; —variation in dogs, 1; —crossing of dog and jackal, 1; —origin of domestic cats, 2; —origin of Angora cat, 1; —on Persian sheep, 3; —on Chinese sheep, 24; —on Crimean varieties of the vine, 10; —on a grape with rudimentary seeds, 24;