Dahlbom, effects of food on hymenoptera, ii.281.Dahlia, i. 369-370, ii.147;bud-variation by tubers in the, i. 385;improvement of, by selection, ii.216;steps in cultivation of, ii.261;effect of conditions of life on, ii.273;correlation of form and colour in, ii.331.Daisy, hen and chicken, i. 365;Swan River, ii.261.Dalbret, varieties of wheat, i. 314.Dalibert, changes in the odours of plants, ii.274.Dally, Dr., on consanguineous marriages, ii.122.Daltonism, hereditary, ii.9.Damaras, cattle of, i. 88, ii.207-208.Damson, i. 347.Dandolo, Count, on silkworms, i. 301.Daniell, fertility of English dogs in Sierra Leone, ii.161.DanishMiddens, remains of dogs in, i. 18.Dapplingin horses, asses, and hybrids, i. 55.Dareste. C., on the skull of the Polish fowl, i. 262;on the production of monstrous chickens, ii.289;co-existence of anomalies, ii.331;production of double monsters, ii.340.Darvill, Mr., heredity of good qualities in horses, ii.11.Darwin, C., onLepus magellanicus, i. 112;on the wild potato, i. 330;dimorphism in the polyanthus and primrose, ii.21.Darwin, Dr., improvement of vegetables by selection, ii.204.Darwin, Sir F., wildness of crossed pigs, ii.45.D'Asso, monogynous condition of the hawthorn in Spain, i. 364.Dasyprocta aguti, ii.152.Date-palm, varieties of the, ii.256;effect of pollen of, upon the fruit ofChamærops, i. 299.Datura, ii.38;variability in, ii.266.Datura lævisandstramonium, reversion in hybrids of, i. 392.Datura stramonium, ii.67.Daubenton, variations in the number of mammæ in dogs, i. 35;proportions of intestines in wild and domestic cats, i. 48, ii.302.Daudin, on white rabbits, ii.230.Davy, Dr., on sheep in the West Indies, i. 98.Dawkinsand Sandford, early domestication ofBos longifronsin Britain, i. 81.Deaf-mutes, non-heredity of, ii.22.Deafness, inheritance of, ii.78.Deby, wild hybrids of common and musk ducks, ii.46.De Candolle, Alph., number and origin of cultivated plants, i. 306-307, 371;regions which have furnished no useful plants, i. 310;wild wheat, i. 312-313;wild rye and oats, i. 313;antiquity of varieties of wheat, i. 316;apparent inefficacy of selection in wheat, i. 318;origin and cultivation of maize, i. 320, ii.307;colours of seeds of maize, i. 321;varieties and origin of the cabbage, i. 324-325;origin of the garden-pea, i. 326;on the vine, i. 332, ii.308;cultivated species of the orange group, i. 335;probable Chinese origin of the peach, i. 337;on the peach and nectarine, i. 340, 342;varieties of the peach, i. 342;origin of the apricot, i. 344;origin and varieties of the plum, i. 345;origin of the cherry, i. 347;varieties of the gooseberry, i. 354;selection practised with forest-trees, i. 361;wild fastigate oak, i. 361;dark-leaved varieties of trees, i. 362;conversion of stamens into pistils in the poppy, i. 365;variegated foliage, i. 366;heredity of white hyacinths, i. 371, ii.20;changes in oaks dependent on age, i. 387;inheritance of anomalous characters, ii.19;variation of plants in their native countries, ii.256;deciduous bushes becoming evergreen in hot climates, ii.305;antiquity of races of plants, ii.429.De Candolle, P., non-variability of monotypic genera, ii.266;relative development of root and seed inRaphanus sativus, ii.343.Decaisne, on the cultivation of the wild carrot, i. 326;varieties of the pear, i. 350;inter-crossing of strawberries, i. 351;fruit of the apple, i. 401;sterility ofLysimachia nummularia, ii.170;tender variety of the peach, ii.308.Deer, assumption of horns by female, ii.51;imperfect development of horns in a, on a voyage, ii.158.Deer, fallow, ii.103.Deerhound. Scotch, difference in size of the sexes of, ii.73;deterioration of, ii.121.Degenerationof high-bred races, under neglect, ii.239.De Jonghe, J., on strawberries, i. 352, ii.243;soft-barked pears, ii.231;on accumulative variation, ii.262;resistance of blossoms to frost, ii.306.Delamer, E. S., on rabbits, i. 107, 112.Delphinium ajacis, ii.21.Delphinium consolida, ii.20-21.Dendrocygna viduata, i. 182, ii.157.Dentition, variations of, in the horse, i. 50.Deodar, i. 364.Desmarest, distribution of white on dogs, i. 29;cat from the Cape of Good Hope, i. 47;cats of Madagascar, i. 47;occurrence of striped young in Turkish pigs, i. 76;French breeds of cattle, i. 80;horns of goats, i. 102;on hornless goats, ii.315.Desor, E., on the Anglo-Saxon race in America, ii.276.Desportes, number of varieties of roses, i. 367.Devay, Dr., singular case of albinism, ii.17;on the marriage of cousins, ii.122;on the effects of close interbreeding, ii.143,263.Developmentand metamorphosis, ii.388-389.Development, arrests of, ii.315-318.Development, embryonic, ii.366-368.D'Hervey-Saint-Denys, L., on the ya-mi, or imperial rice of the Chinese, ii.205.Dhole, fertility of the, in captivity, ii.151.Diabetes, occurrence of, in three brothers, ii.17.Dianthus, contabescent plants of, ii.165-166;hybrid varieties of, ii.267.Dianthus armeriaanddeltoides, hybrids of, ii.98.Dianthus barbatus, i. 381.Dianthus caryophyllus, i. 381.Dianthus japonicus, contabescence of female organs in, ii.166.Dichogamousplants, ii.90.Dickson, Mr., on "running" in carnations, i. 381;on the colours of tulips, i. 386.Dicotyles torquatusandlabiatus, ii.150.Dieffenbach, dog of New Zealand, i. 26;feral cats in New Zealand, i. 47;polydactylism in Polynesia, ii.14.Dielytra, ii.59.Diet, change of, ii.303-304.Digitalis, properties of, affected by culture, ii.274;poison of, ii.380.Digits, supernumerary, ii.57;analogy of, with embryonic conditions, ii.16;fusion of, ii.341.Dimorphicplants, ii.166;conditions of reproduction in, ii.181-184.Dimorphism, reciprocal, ii.90.Dingo, i. 25;variation of, in colour, i. 28;half-bred, attempting to burrow, i. 28;attraction of foxes by a female, i. 31;variations of, in confinement, ii.263.Diœciousnessof strawberries, i. 353.Diseases, inheritance of, ii.7-8;family uniformity of, ii.57;inherited at corresponding periods of life, ii.77-80;peculiar to localities and climates, ii.276;obscure correlations in, ii.331-332;affecting certain parts of the body, ii.380;occurring in alternate generations, ii.401.Distemper, fatal to white terriers, ii.227.Disuseand use of parts, effects of, ii.295-303,352-353,418-419;in the skeleton of rabbits, i. 124-128;in pigeons, i. 171-177;in fowls, i. 270-274;in ducks, i. 284-286;in the silk-moth, i. 300-304.Divergence, influence of, in producing breeds of pigeons, i. 220.Dixon, E. S., on the musk duck, i. 182;on feral ducks, i. 190;on feral pigeons in Norfolk Island, i. 190;crossing of pigeons, i. 192;origin of domestic fowls, i. 230;crossing ofGallus Sonneratiiand common fowl, i. 234;occurrence of white in the young chicks of black fowls, i. 244;Paduan fowl of Aldrovandi, i. 247;peculiarities of the eggs of fowls, i. 248;chickens, i. 249-250;late development of the tail in Cochin cocks, i. 250;comb of lark-crested fowls, i. 256;development of webs in Polish fowls, i. 259;on the voice of fowls, i. 259;origin of the duck, i. 277;ducks kept by the Romans, i. 278;domestication of the goose, i. 287;gander frequently white, i. 288;breeds of turkeys, i. 293;incubatory instinct of mongrels of non-sitting races of fowls, ii.44;aversion of the dove-cot pigeon to pair with fancy birds, ii.103;fertility of the goose, ii.112;general sterility of the guans in captivity, ii.156;fertility of geese in captivity, ii.157;white peafowl, ii.332.Dobell, H., inheritance of anomalies of the extremities, ii.14;non-reversion to a malformation, ii.36.Dobrizhoffer, abhorrence of incest by the Abipones, ii.123.Dogs, origin of, i. 15;ancient breeds of, i. 17, ii.429;of neolithic, bronze and iron periods in Europe, i. 18-19, ii.427;resemblance of to various species of canidæ, i. 21;of North America compared with wolves, i. 21-22;of the West Indies, South America, and Mexico, i. 23, 31;of Guiana, i. 23;naked dogs of Paraguay and Peru,ibid.and 31;dumb, on Juan Fernandez, i. 27;of Juan de Nova, i. 27;of La Plata, i. 27;of Cuba, i. 27;of St. Domingo, i. 28;correlation of colour in, i. 28-29;gestation of, i. 29-30;hairless Turkish, i. 30, ii.227;inter-crossing of different breeds of, i. 31;characters of different breeds of, discussed, i. 34-37;degeneration of European, in warm climates, i. 36, 38; ii.278,305;liability to certain diseases in different breeds of, i. 36 andnote;causes of differences of breeds discussed, i. 37-43;catching fish and crabs in New Guinea and Tierra del Fuego, i. 39;webbing of the feet in, i. 39;influence of selection in producing different breeds of, i. 39, 43;retention of original habits by, i. 182;inheritance of polydactylism in, ii.14;feral, ii.33;reversion in fourth generation of, ii.34;of the Pacific Islands, ii.87,220,303;mongrel, ii.92-93;comparative facility of crossing different breeds of, ii.102;fertility of, ii.111,151;inter-breeding of, ii.120-121;selection of, among the Greeks, ii.202,209;among savages, ii.206-207;unconscious selection of, ii.211-212;valued by the Fuegians, ii.215;climatal changes in hair of, ii.278;production of drooping ears in, ii.301;rejection of bones of game by, ii.303;inheritance of rudiments of limbs in, ii.315;development of fifth toe in, ii.317;hairless, deficiency of teeth in, ii.326;short-faced, teeth of, ii.345;probable analogous variation in, ii.349;extinction of breeds of, ii.425.Dombrain, H. H., on the auricula, ii.346-347.Domestication, essential points in, ii.405-406;favourable to crossing, ii.109-110;fertility increased by, ii.111-113,174.Domesticatedanimals, origin of, ii.160-161;occasional sterility of, under changed conditions, ii.161-162.Donders, Dr., hereditary hypermetropia, ii.8.Dorkingfowl, i. 227, 261;furcula of, figured, i. 268.Dormouse, ii.152.Double flowers, ii.167-168,171-172;produced by selection, ii.200.Doubleday, H., cultivation of the filbert pine strawberry, i. 354.Douglas, J., crossing of white and black game-fowls, ii.92.Downing, Mr., wild varieties of the hickory, i. 310;peaches and nectarines from seed, i. 339-340;origin of the Boston nectarine, i. 340;American varieties of the peach, i. 343;North American apricot, i. 344;varieties of the plum, i. 346;origin and varieties of the cherry, i. 347-348;"twin cluster pippins," i. 349;varieties of the apple, i. 350;on strawberries, i. 351, 353;fruit of the wild gooseberry, i. 355;effects of grafting upon the seed, ii.26;diseases of plum and peach trees, ii.227-228;injury done to stone fruit in America by the "weevil," ii.231;grafts of the plum and peach, ii.259;wild varieties of pears, ii.260;varieties of fruit-trees suitable to different climates, ii.306.Draba sylvestris, ii.163.Dragon, pigeon, i. 139, 141."Draijer" (pigeon), i. 156.Drinking, effects of, in different climates, ii.289.Dromedary, selection of, ii.205-206.Druce, Mr., inter-breeding of pigs, ii.121.Du Chaillu, fruit-trees in West Africa, i. 309.DuchesneonFragaria vesca, i. 351, 352, 353.Dufour, Léon, onCecidomyiaandMisocampus, i. 5.Duck, musk, retention of perching habit by the, i. 182;feral hybrid of, i. 190.Duck, penguin, hybrid of, with Egyptian goose, ii.68.Duck, wild, difficulty of rearing, ii.233;effects of domestication on, ii.278.Ducks, breeds of, i. 276-277;origin of, i. 277;history of,ibid.;wild, easily tamed, i. 278-279;fertility of breeds of, when crossed, i. 279;with the plumage ofAnas boschas, i. 280;Malayan penguin, identical in plumage with English, i. 280;characters of the breeds of, i. 281-284;eggs of, i. 281;effects of use and disuse in, i. 284-286, ii.298;feral, in Norfolk, i. 190;Aylesbury, inheritance of early hatching by, ii.25;reversion in, produced by crossing, ii.40;wildness of half-bred wild, ii.45;hybrids of, with the musk duck, ii.45-46;assumption of male plumage by, ii.51;crossing of Labrador and penguin, ii.97;increased fertility of, by domestication, ii.112;general fertility of, in confinement, ii.157;increase of size of, by care in breeding, ii.199;change produced by domestication in, ii.262.Duméril, Aug., breeding ofSiredonin the branchiferous stage, ii.384.Dun-coloured horses, origin of, i. 59.Dureaude la Malle, feral pigs in Louisiana, ii.33;feral fowls in Africa,ibid.;bud-variation in the pear, i. 376;production of mules among the Romans, ii.110.Dusicyon sylvestris, i. 23.Dutchrabbit, i. 107.Dutchroller pigeon, i. 151.Dutrochet, pelorism in the laburnum, ii.346.Duval, growth of pears in woods in France, ii.260.Duval-Jouve, onLeersia oryzoides, ii.91.Duvernoy, self-impotence inLilium candidum, ii.137.Dzierzon, variability in the characters and habits of bees, i. 298.Earle, Dr., on colour-blindness, ii.72,328.Ears, of fancy rabbits, i. 106;deficiency of, in breeds of rabbits, i. 108;rudimentary, in Chinese sheep, ii.315;drooping, ii.301;fusion of, ii.341.Eaton, J. M., on fancy pigeons, i. 148, 153;variability of characters in breeds of pigeons, i. 161;reversion of crossed pigeons to coloration ofColumba livia, i. 198;on pigeon-fancying, i. 206, 215-216;on tumbler-pigeons, i. 209, ii.242;carrier-pigeon, i. 211;effects of interbreeding on pigeons, ii.126;properties of pigeons, ii.197-198;death of short-faced tumblers in the egg, ii.226;Archangel pigeon, ii.240.Echinodermata, metagenesis in, ii.367.Ectopistes, specific difference in number of tail-feathers in, i. 159.Ectopistes migratorius, sterile hybrids of, withTurtur vulgaris, i. 193.Edentata, correlation of dermal system and teeth in the, ii.328.Edgeworth, Mr., use of grass-seeds as food in the Punjab, i. 309.Edmonston, Dr., on the stomach inLarus argentatusand the raven, ii.302.EdwardsandColin, on English wheat in France, ii.307.Edwards, W. F., absorption of the minority in crossed races, ii.87.Edwards, W. W., occurrence of stripes in a nearly thoroughbred horse, i. 57;in foals of racehorses, i. 59.Eggs, of fowls, characters of, i. 248;variations of, in ducks, i. 281;of the silkmoth, i. 301.Egypt, ancient dogs of, i. 17-18;ancient domestication of the pigeon in, i. 204;absence of the fowl in ancient, i. 246.Egyptiangoose, hybrids of, with penguin duck, i. 282.Ehrenberg, Prof., multiple origin of the dog, i. 16;dogs of Lower Egypt, i. 25;mummies ofFelis maniculata, i. 43.Element, male, compared to a premature larva, ii.384.Elementsof the body, functional independence of the, ii.368-371.Elephant, its sterility in captivity, ii.150.Elk, Irish, correlations in the, ii.333-334.Elliot, Sir Walter, on striped horses, i. 58;Indian domestic and wild swine, i. 66;pigeons from Cairo and Constantinople, i. 132;fantail pigeons, i. 146;Lotan tumbler pigeons, i. 150;a pigeon uttering the soundYahu, i. 155;Gallus bankivain Pegu, i. 236.Ellis, Mr., varieties of cultivated plants in Tahiti, ii.256.Elm, nearly evergreen Cornish variety of the, i. 363, ii.310;foliage-varieties of the, i. 362.Elm, weeping, i. 361;not reproduced by seed, ii.19.Emberiza passerina, ii.158.Embryos, similarity of, i. 12;fusion of, ii.339.Engel, onLaurus sassafras, ii.274.England, domestication ofBos longifronsin, i. 81;selection of horses in, in mediæval times, ii.203;laws against the early slaughter of rams in, ii.203.Ephemeridæ, development of the, ii.366.Epidendrum cinnabarinumandE. zebra, ii.134.Epilepsy, hereditary, ii.8,78.Erdt, disease of the white parts of cattle, ii.337.Ericaceæ, frequency of contabescence in the, ii.165.Erichthonius, an improver of horses by selection, ii.202.Erman, on the fat-tailed Kirghisian sheep, i. 98, ii.280;on the dogs of the Ostyaks, ii.206.Erodium, ii.59.Erythrina Crista-galliandE. herbacea, hybrids of, ii.265.Esquilant, Mr., on the naked young of dun-coloured pigeons, i. 170.Esquimauxdogs, their resemblance to wolves, i. 21;selection of, ii.206.Eudes-Deslongchamps, on appendages under the jaw of pigs, i. 75-76.Euonymus Japonicus, i. 383.Europeancultivated plants, still wild in Europe, i. 307.Evans, Mr., on the Lotan tumbler pigeon, i. 150.Evelyn, pansies grown in his garden, i. 368.Everest, R., on the Newfoundland dog in India, i. 36, ii.305;degeneration of setters in India, i. 38;Indian wild boars, i. 66.Ewes, hornless, ii.350.Extinctionof domestic races, i. 221.Eyes, hereditary peculiarities of the, ii.8-10;loss of, causing microphthalmia in children, ii.24;modification of the structure of, by natural selection, ii.222-223;fusion of, ii.341.Eyebrows, hereditary elongation of hairs in, ii.8.Eyelids, inherited peculiarities of the, ii.8.Eyton, Mr., on gestation in the dog, i. 30;variability in number of vertebræ in the pig, i. 74;individual sterility, ii.162.
Dahlbom, effects of food on hymenoptera, ii.281.Dahlia, i. 369-370, ii.147;bud-variation by tubers in the, i. 385;improvement of, by selection, ii.216;steps in cultivation of, ii.261;effect of conditions of life on, ii.273;correlation of form and colour in, ii.331.Daisy, hen and chicken, i. 365;Swan River, ii.261.Dalbret, varieties of wheat, i. 314.Dalibert, changes in the odours of plants, ii.274.Dally, Dr., on consanguineous marriages, ii.122.Daltonism, hereditary, ii.9.Damaras, cattle of, i. 88, ii.207-208.Damson, i. 347.Dandolo, Count, on silkworms, i. 301.Daniell, fertility of English dogs in Sierra Leone, ii.161.DanishMiddens, remains of dogs in, i. 18.Dapplingin horses, asses, and hybrids, i. 55.Dareste. C., on the skull of the Polish fowl, i. 262;on the production of monstrous chickens, ii.289;co-existence of anomalies, ii.331;production of double monsters, ii.340.Darvill, Mr., heredity of good qualities in horses, ii.11.Darwin, C., onLepus magellanicus, i. 112;on the wild potato, i. 330;dimorphism in the polyanthus and primrose, ii.21.Darwin, Dr., improvement of vegetables by selection, ii.204.Darwin, Sir F., wildness of crossed pigs, ii.45.D'Asso, monogynous condition of the hawthorn in Spain, i. 364.Dasyprocta aguti, ii.152.Date-palm, varieties of the, ii.256;effect of pollen of, upon the fruit ofChamærops, i. 299.Datura, ii.38;variability in, ii.266.Datura lævisandstramonium, reversion in hybrids of, i. 392.Datura stramonium, ii.67.Daubenton, variations in the number of mammæ in dogs, i. 35;proportions of intestines in wild and domestic cats, i. 48, ii.302.Daudin, on white rabbits, ii.230.Davy, Dr., on sheep in the West Indies, i. 98.Dawkinsand Sandford, early domestication ofBos longifronsin Britain, i. 81.Deaf-mutes, non-heredity of, ii.22.Deafness, inheritance of, ii.78.Deby, wild hybrids of common and musk ducks, ii.46.De Candolle, Alph., number and origin of cultivated plants, i. 306-307, 371;regions which have furnished no useful plants, i. 310;wild wheat, i. 312-313;wild rye and oats, i. 313;antiquity of varieties of wheat, i. 316;apparent inefficacy of selection in wheat, i. 318;origin and cultivation of maize, i. 320, ii.307;colours of seeds of maize, i. 321;varieties and origin of the cabbage, i. 324-325;origin of the garden-pea, i. 326;on the vine, i. 332, ii.308;cultivated species of the orange group, i. 335;probable Chinese origin of the peach, i. 337;on the peach and nectarine, i. 340, 342;varieties of the peach, i. 342;origin of the apricot, i. 344;origin and varieties of the plum, i. 345;origin of the cherry, i. 347;varieties of the gooseberry, i. 354;selection practised with forest-trees, i. 361;wild fastigate oak, i. 361;dark-leaved varieties of trees, i. 362;conversion of stamens into pistils in the poppy, i. 365;variegated foliage, i. 366;heredity of white hyacinths, i. 371, ii.20;changes in oaks dependent on age, i. 387;inheritance of anomalous characters, ii.19;variation of plants in their native countries, ii.256;deciduous bushes becoming evergreen in hot climates, ii.305;antiquity of races of plants, ii.429.De Candolle, P., non-variability of monotypic genera, ii.266;relative development of root and seed inRaphanus sativus, ii.343.Decaisne, on the cultivation of the wild carrot, i. 326;varieties of the pear, i. 350;inter-crossing of strawberries, i. 351;fruit of the apple, i. 401;sterility ofLysimachia nummularia, ii.170;tender variety of the peach, ii.308.Deer, assumption of horns by female, ii.51;imperfect development of horns in a, on a voyage, ii.158.Deer, fallow, ii.103.Deerhound. Scotch, difference in size of the sexes of, ii.73;deterioration of, ii.121.Degenerationof high-bred races, under neglect, ii.239.De Jonghe, J., on strawberries, i. 352, ii.243;soft-barked pears, ii.231;on accumulative variation, ii.262;resistance of blossoms to frost, ii.306.Delamer, E. S., on rabbits, i. 107, 112.Delphinium ajacis, ii.21.Delphinium consolida, ii.20-21.Dendrocygna viduata, i. 182, ii.157.Dentition, variations of, in the horse, i. 50.Deodar, i. 364.Desmarest, distribution of white on dogs, i. 29;cat from the Cape of Good Hope, i. 47;cats of Madagascar, i. 47;occurrence of striped young in Turkish pigs, i. 76;French breeds of cattle, i. 80;horns of goats, i. 102;on hornless goats, ii.315.Desor, E., on the Anglo-Saxon race in America, ii.276.Desportes, number of varieties of roses, i. 367.Devay, Dr., singular case of albinism, ii.17;on the marriage of cousins, ii.122;on the effects of close interbreeding, ii.143,263.Developmentand metamorphosis, ii.388-389.Development, arrests of, ii.315-318.Development, embryonic, ii.366-368.D'Hervey-Saint-Denys, L., on the ya-mi, or imperial rice of the Chinese, ii.205.Dhole, fertility of the, in captivity, ii.151.Diabetes, occurrence of, in three brothers, ii.17.Dianthus, contabescent plants of, ii.165-166;hybrid varieties of, ii.267.Dianthus armeriaanddeltoides, hybrids of, ii.98.Dianthus barbatus, i. 381.Dianthus caryophyllus, i. 381.Dianthus japonicus, contabescence of female organs in, ii.166.Dichogamousplants, ii.90.Dickson, Mr., on "running" in carnations, i. 381;on the colours of tulips, i. 386.Dicotyles torquatusandlabiatus, ii.150.Dieffenbach, dog of New Zealand, i. 26;feral cats in New Zealand, i. 47;polydactylism in Polynesia, ii.14.Dielytra, ii.59.Diet, change of, ii.303-304.Digitalis, properties of, affected by culture, ii.274;poison of, ii.380.Digits, supernumerary, ii.57;analogy of, with embryonic conditions, ii.16;fusion of, ii.341.Dimorphicplants, ii.166;conditions of reproduction in, ii.181-184.Dimorphism, reciprocal, ii.90.Dingo, i. 25;variation of, in colour, i. 28;half-bred, attempting to burrow, i. 28;attraction of foxes by a female, i. 31;variations of, in confinement, ii.263.Diœciousnessof strawberries, i. 353.Diseases, inheritance of, ii.7-8;family uniformity of, ii.57;inherited at corresponding periods of life, ii.77-80;peculiar to localities and climates, ii.276;obscure correlations in, ii.331-332;affecting certain parts of the body, ii.380;occurring in alternate generations, ii.401.Distemper, fatal to white terriers, ii.227.Disuseand use of parts, effects of, ii.295-303,352-353,418-419;in the skeleton of rabbits, i. 124-128;in pigeons, i. 171-177;in fowls, i. 270-274;in ducks, i. 284-286;in the silk-moth, i. 300-304.Divergence, influence of, in producing breeds of pigeons, i. 220.Dixon, E. S., on the musk duck, i. 182;on feral ducks, i. 190;on feral pigeons in Norfolk Island, i. 190;crossing of pigeons, i. 192;origin of domestic fowls, i. 230;crossing ofGallus Sonneratiiand common fowl, i. 234;occurrence of white in the young chicks of black fowls, i. 244;Paduan fowl of Aldrovandi, i. 247;peculiarities of the eggs of fowls, i. 248;chickens, i. 249-250;late development of the tail in Cochin cocks, i. 250;comb of lark-crested fowls, i. 256;development of webs in Polish fowls, i. 259;on the voice of fowls, i. 259;origin of the duck, i. 277;ducks kept by the Romans, i. 278;domestication of the goose, i. 287;gander frequently white, i. 288;breeds of turkeys, i. 293;incubatory instinct of mongrels of non-sitting races of fowls, ii.44;aversion of the dove-cot pigeon to pair with fancy birds, ii.103;fertility of the goose, ii.112;general sterility of the guans in captivity, ii.156;fertility of geese in captivity, ii.157;white peafowl, ii.332.Dobell, H., inheritance of anomalies of the extremities, ii.14;non-reversion to a malformation, ii.36.Dobrizhoffer, abhorrence of incest by the Abipones, ii.123.Dogs, origin of, i. 15;ancient breeds of, i. 17, ii.429;of neolithic, bronze and iron periods in Europe, i. 18-19, ii.427;resemblance of to various species of canidæ, i. 21;of North America compared with wolves, i. 21-22;of the West Indies, South America, and Mexico, i. 23, 31;of Guiana, i. 23;naked dogs of Paraguay and Peru,ibid.and 31;dumb, on Juan Fernandez, i. 27;of Juan de Nova, i. 27;of La Plata, i. 27;of Cuba, i. 27;of St. Domingo, i. 28;correlation of colour in, i. 28-29;gestation of, i. 29-30;hairless Turkish, i. 30, ii.227;inter-crossing of different breeds of, i. 31;characters of different breeds of, discussed, i. 34-37;degeneration of European, in warm climates, i. 36, 38; ii.278,305;liability to certain diseases in different breeds of, i. 36 andnote;causes of differences of breeds discussed, i. 37-43;catching fish and crabs in New Guinea and Tierra del Fuego, i. 39;webbing of the feet in, i. 39;influence of selection in producing different breeds of, i. 39, 43;retention of original habits by, i. 182;inheritance of polydactylism in, ii.14;feral, ii.33;reversion in fourth generation of, ii.34;of the Pacific Islands, ii.87,220,303;mongrel, ii.92-93;comparative facility of crossing different breeds of, ii.102;fertility of, ii.111,151;inter-breeding of, ii.120-121;selection of, among the Greeks, ii.202,209;among savages, ii.206-207;unconscious selection of, ii.211-212;valued by the Fuegians, ii.215;climatal changes in hair of, ii.278;production of drooping ears in, ii.301;rejection of bones of game by, ii.303;inheritance of rudiments of limbs in, ii.315;development of fifth toe in, ii.317;hairless, deficiency of teeth in, ii.326;short-faced, teeth of, ii.345;probable analogous variation in, ii.349;extinction of breeds of, ii.425.Dombrain, H. H., on the auricula, ii.346-347.Domestication, essential points in, ii.405-406;favourable to crossing, ii.109-110;fertility increased by, ii.111-113,174.Domesticatedanimals, origin of, ii.160-161;occasional sterility of, under changed conditions, ii.161-162.Donders, Dr., hereditary hypermetropia, ii.8.Dorkingfowl, i. 227, 261;furcula of, figured, i. 268.Dormouse, ii.152.Double flowers, ii.167-168,171-172;produced by selection, ii.200.Doubleday, H., cultivation of the filbert pine strawberry, i. 354.Douglas, J., crossing of white and black game-fowls, ii.92.Downing, Mr., wild varieties of the hickory, i. 310;peaches and nectarines from seed, i. 339-340;origin of the Boston nectarine, i. 340;American varieties of the peach, i. 343;North American apricot, i. 344;varieties of the plum, i. 346;origin and varieties of the cherry, i. 347-348;"twin cluster pippins," i. 349;varieties of the apple, i. 350;on strawberries, i. 351, 353;fruit of the wild gooseberry, i. 355;effects of grafting upon the seed, ii.26;diseases of plum and peach trees, ii.227-228;injury done to stone fruit in America by the "weevil," ii.231;grafts of the plum and peach, ii.259;wild varieties of pears, ii.260;varieties of fruit-trees suitable to different climates, ii.306.Draba sylvestris, ii.163.Dragon, pigeon, i. 139, 141."Draijer" (pigeon), i. 156.Drinking, effects of, in different climates, ii.289.Dromedary, selection of, ii.205-206.Druce, Mr., inter-breeding of pigs, ii.121.Du Chaillu, fruit-trees in West Africa, i. 309.DuchesneonFragaria vesca, i. 351, 352, 353.Dufour, Léon, onCecidomyiaandMisocampus, i. 5.Duck, musk, retention of perching habit by the, i. 182;feral hybrid of, i. 190.Duck, penguin, hybrid of, with Egyptian goose, ii.68.Duck, wild, difficulty of rearing, ii.233;effects of domestication on, ii.278.Ducks, breeds of, i. 276-277;origin of, i. 277;history of,ibid.;wild, easily tamed, i. 278-279;fertility of breeds of, when crossed, i. 279;with the plumage ofAnas boschas, i. 280;Malayan penguin, identical in plumage with English, i. 280;characters of the breeds of, i. 281-284;eggs of, i. 281;effects of use and disuse in, i. 284-286, ii.298;feral, in Norfolk, i. 190;Aylesbury, inheritance of early hatching by, ii.25;reversion in, produced by crossing, ii.40;wildness of half-bred wild, ii.45;hybrids of, with the musk duck, ii.45-46;assumption of male plumage by, ii.51;crossing of Labrador and penguin, ii.97;increased fertility of, by domestication, ii.112;general fertility of, in confinement, ii.157;increase of size of, by care in breeding, ii.199;change produced by domestication in, ii.262.Duméril, Aug., breeding ofSiredonin the branchiferous stage, ii.384.Dun-coloured horses, origin of, i. 59.Dureaude la Malle, feral pigs in Louisiana, ii.33;feral fowls in Africa,ibid.;bud-variation in the pear, i. 376;production of mules among the Romans, ii.110.Dusicyon sylvestris, i. 23.Dutchrabbit, i. 107.Dutchroller pigeon, i. 151.Dutrochet, pelorism in the laburnum, ii.346.Duval, growth of pears in woods in France, ii.260.Duval-Jouve, onLeersia oryzoides, ii.91.Duvernoy, self-impotence inLilium candidum, ii.137.Dzierzon, variability in the characters and habits of bees, i. 298.
Dahlbom, effects of food on hymenoptera, ii.281.
Dahlia, i. 369-370, ii.147;
bud-variation by tubers in the, i. 385;
improvement of, by selection, ii.216;
steps in cultivation of, ii.261;
effect of conditions of life on, ii.273;
correlation of form and colour in, ii.331.
Daisy, hen and chicken, i. 365;
Swan River, ii.261.
Dalbret, varieties of wheat, i. 314.
Dalibert, changes in the odours of plants, ii.274.
Dally, Dr., on consanguineous marriages, ii.122.
Daltonism, hereditary, ii.9.
Damaras, cattle of, i. 88, ii.207-208.
Damson, i. 347.
Dandolo, Count, on silkworms, i. 301.
Daniell, fertility of English dogs in Sierra Leone, ii.161.
DanishMiddens, remains of dogs in, i. 18.
Dapplingin horses, asses, and hybrids, i. 55.
Dareste. C., on the skull of the Polish fowl, i. 262;
on the production of monstrous chickens, ii.289;
co-existence of anomalies, ii.331;
production of double monsters, ii.340.
Darvill, Mr., heredity of good qualities in horses, ii.11.
Darwin, C., onLepus magellanicus, i. 112;
on the wild potato, i. 330;
dimorphism in the polyanthus and primrose, ii.21.
Darwin, Dr., improvement of vegetables by selection, ii.204.
Darwin, Sir F., wildness of crossed pigs, ii.45.
D'Asso, monogynous condition of the hawthorn in Spain, i. 364.
Dasyprocta aguti, ii.152.
Date-palm, varieties of the, ii.256;
effect of pollen of, upon the fruit ofChamærops, i. 299.
Datura, ii.38;
variability in, ii.266.
Datura lævisandstramonium, reversion in hybrids of, i. 392.
Datura stramonium, ii.67.
Daubenton, variations in the number of mammæ in dogs, i. 35;
proportions of intestines in wild and domestic cats, i. 48, ii.302.
Daudin, on white rabbits, ii.230.
Davy, Dr., on sheep in the West Indies, i. 98.
Dawkinsand Sandford, early domestication ofBos longifronsin Britain, i. 81.
Deaf-mutes, non-heredity of, ii.22.
Deafness, inheritance of, ii.78.
Deby, wild hybrids of common and musk ducks, ii.46.
De Candolle, Alph., number and origin of cultivated plants, i. 306-307, 371;
regions which have furnished no useful plants, i. 310;
wild wheat, i. 312-313;
wild rye and oats, i. 313;
antiquity of varieties of wheat, i. 316;
apparent inefficacy of selection in wheat, i. 318;
origin and cultivation of maize, i. 320, ii.307;
colours of seeds of maize, i. 321;
varieties and origin of the cabbage, i. 324-325;
origin of the garden-pea, i. 326;
on the vine, i. 332, ii.308;
cultivated species of the orange group, i. 335;
probable Chinese origin of the peach, i. 337;
on the peach and nectarine, i. 340, 342;
varieties of the peach, i. 342;
origin of the apricot, i. 344;
origin and varieties of the plum, i. 345;
origin of the cherry, i. 347;
varieties of the gooseberry, i. 354;
selection practised with forest-trees, i. 361;
wild fastigate oak, i. 361;
dark-leaved varieties of trees, i. 362;
conversion of stamens into pistils in the poppy, i. 365;
variegated foliage, i. 366;
heredity of white hyacinths, i. 371, ii.20;
changes in oaks dependent on age, i. 387;
inheritance of anomalous characters, ii.19;
variation of plants in their native countries, ii.256;
deciduous bushes becoming evergreen in hot climates, ii.305;
antiquity of races of plants, ii.429.
De Candolle, P., non-variability of monotypic genera, ii.266;
relative development of root and seed inRaphanus sativus, ii.343.
Decaisne, on the cultivation of the wild carrot, i. 326;
varieties of the pear, i. 350;
inter-crossing of strawberries, i. 351;
fruit of the apple, i. 401;
sterility ofLysimachia nummularia, ii.170;
tender variety of the peach, ii.308.
Deer, assumption of horns by female, ii.51;
imperfect development of horns in a, on a voyage, ii.158.
Deer, fallow, ii.103.
Deerhound. Scotch, difference in size of the sexes of, ii.73;
deterioration of, ii.121.
Degenerationof high-bred races, under neglect, ii.239.
De Jonghe, J., on strawberries, i. 352, ii.243;
soft-barked pears, ii.231;
on accumulative variation, ii.262;
resistance of blossoms to frost, ii.306.
Delamer, E. S., on rabbits, i. 107, 112.
Delphinium ajacis, ii.21.
Delphinium consolida, ii.20-21.
Dendrocygna viduata, i. 182, ii.157.
Dentition, variations of, in the horse, i. 50.
Deodar, i. 364.
Desmarest, distribution of white on dogs, i. 29;
cat from the Cape of Good Hope, i. 47;
cats of Madagascar, i. 47;
occurrence of striped young in Turkish pigs, i. 76;
French breeds of cattle, i. 80;
horns of goats, i. 102;
on hornless goats, ii.315.
Desor, E., on the Anglo-Saxon race in America, ii.276.
Desportes, number of varieties of roses, i. 367.
Devay, Dr., singular case of albinism, ii.17;
on the marriage of cousins, ii.122;
on the effects of close interbreeding, ii.143,263.
Developmentand metamorphosis, ii.388-389.
Development, arrests of, ii.315-318.
Development, embryonic, ii.366-368.
D'Hervey-Saint-Denys, L., on the ya-mi, or imperial rice of the Chinese, ii.205.
Dhole, fertility of the, in captivity, ii.151.
Diabetes, occurrence of, in three brothers, ii.17.
Dianthus, contabescent plants of, ii.165-166;
hybrid varieties of, ii.267.
Dianthus armeriaanddeltoides, hybrids of, ii.98.
Dianthus barbatus, i. 381.
Dianthus caryophyllus, i. 381.
Dianthus japonicus, contabescence of female organs in, ii.166.
Dichogamousplants, ii.90.
Dickson, Mr., on "running" in carnations, i. 381;
on the colours of tulips, i. 386.
Dicotyles torquatusandlabiatus, ii.150.
Dieffenbach, dog of New Zealand, i. 26;
feral cats in New Zealand, i. 47;
polydactylism in Polynesia, ii.14.
Dielytra, ii.59.
Diet, change of, ii.303-304.
Digitalis, properties of, affected by culture, ii.274;
poison of, ii.380.
Digits, supernumerary, ii.57;
analogy of, with embryonic conditions, ii.16;
fusion of, ii.341.
Dimorphicplants, ii.166;
conditions of reproduction in, ii.181-184.
Dimorphism, reciprocal, ii.90.
Dingo, i. 25;
variation of, in colour, i. 28;
half-bred, attempting to burrow, i. 28;
attraction of foxes by a female, i. 31;
variations of, in confinement, ii.263.
Diœciousnessof strawberries, i. 353.
Diseases, inheritance of, ii.7-8;
family uniformity of, ii.57;
inherited at corresponding periods of life, ii.77-80;
peculiar to localities and climates, ii.276;
obscure correlations in, ii.331-332;
affecting certain parts of the body, ii.380;
occurring in alternate generations, ii.401.
Distemper, fatal to white terriers, ii.227.
Disuseand use of parts, effects of, ii.295-303,352-353,418-419;
in the skeleton of rabbits, i. 124-128;
in pigeons, i. 171-177;
in fowls, i. 270-274;
in ducks, i. 284-286;
in the silk-moth, i. 300-304.
Divergence, influence of, in producing breeds of pigeons, i. 220.
Dixon, E. S., on the musk duck, i. 182;
on feral ducks, i. 190;
on feral pigeons in Norfolk Island, i. 190;
crossing of pigeons, i. 192;
origin of domestic fowls, i. 230;
crossing ofGallus Sonneratiiand common fowl, i. 234;
occurrence of white in the young chicks of black fowls, i. 244;
Paduan fowl of Aldrovandi, i. 247;
peculiarities of the eggs of fowls, i. 248;
chickens, i. 249-250;
late development of the tail in Cochin cocks, i. 250;
comb of lark-crested fowls, i. 256;
development of webs in Polish fowls, i. 259;
on the voice of fowls, i. 259;
origin of the duck, i. 277;
ducks kept by the Romans, i. 278;
domestication of the goose, i. 287;
gander frequently white, i. 288;
breeds of turkeys, i. 293;
incubatory instinct of mongrels of non-sitting races of fowls, ii.44;
aversion of the dove-cot pigeon to pair with fancy birds, ii.103;
fertility of the goose, ii.112;
general sterility of the guans in captivity, ii.156;
fertility of geese in captivity, ii.157;
white peafowl, ii.332.
Dobell, H., inheritance of anomalies of the extremities, ii.14;
non-reversion to a malformation, ii.36.
Dobrizhoffer, abhorrence of incest by the Abipones, ii.123.
Dogs, origin of, i. 15;
ancient breeds of, i. 17, ii.429;
of neolithic, bronze and iron periods in Europe, i. 18-19, ii.427;
resemblance of to various species of canidæ, i. 21;
of North America compared with wolves, i. 21-22;
of the West Indies, South America, and Mexico, i. 23, 31;
of Guiana, i. 23;
naked dogs of Paraguay and Peru,ibid.and 31;
dumb, on Juan Fernandez, i. 27;
of Juan de Nova, i. 27;
of La Plata, i. 27;
of Cuba, i. 27;
of St. Domingo, i. 28;
correlation of colour in, i. 28-29;
gestation of, i. 29-30;
hairless Turkish, i. 30, ii.227;
inter-crossing of different breeds of, i. 31;
characters of different breeds of, discussed, i. 34-37;
degeneration of European, in warm climates, i. 36, 38; ii.278,305;
liability to certain diseases in different breeds of, i. 36 andnote;
causes of differences of breeds discussed, i. 37-43;
catching fish and crabs in New Guinea and Tierra del Fuego, i. 39;
webbing of the feet in, i. 39;
influence of selection in producing different breeds of, i. 39, 43;
retention of original habits by, i. 182;
inheritance of polydactylism in, ii.14;
feral, ii.33;
reversion in fourth generation of, ii.34;
of the Pacific Islands, ii.87,220,303;
mongrel, ii.92-93;
comparative facility of crossing different breeds of, ii.102;
fertility of, ii.111,151;
inter-breeding of, ii.120-121;
selection of, among the Greeks, ii.202,209;
among savages, ii.206-207;
unconscious selection of, ii.211-212;
valued by the Fuegians, ii.215;
climatal changes in hair of, ii.278;
production of drooping ears in, ii.301;
rejection of bones of game by, ii.303;
inheritance of rudiments of limbs in, ii.315;
development of fifth toe in, ii.317;
hairless, deficiency of teeth in, ii.326;
short-faced, teeth of, ii.345;
probable analogous variation in, ii.349;
extinction of breeds of, ii.425.
Dombrain, H. H., on the auricula, ii.346-347.
Domestication, essential points in, ii.405-406;
favourable to crossing, ii.109-110;
fertility increased by, ii.111-113,174.
Domesticatedanimals, origin of, ii.160-161;
occasional sterility of, under changed conditions, ii.161-162.
Donders, Dr., hereditary hypermetropia, ii.8.
Dorkingfowl, i. 227, 261;
furcula of, figured, i. 268.
Dormouse, ii.152.
Double flowers, ii.167-168,171-172;
produced by selection, ii.200.
Doubleday, H., cultivation of the filbert pine strawberry, i. 354.
Douglas, J., crossing of white and black game-fowls, ii.92.
Downing, Mr., wild varieties of the hickory, i. 310;
peaches and nectarines from seed, i. 339-340;
origin of the Boston nectarine, i. 340;
American varieties of the peach, i. 343;
North American apricot, i. 344;
varieties of the plum, i. 346;
origin and varieties of the cherry, i. 347-348;
"twin cluster pippins," i. 349;
varieties of the apple, i. 350;
on strawberries, i. 351, 353;
fruit of the wild gooseberry, i. 355;
effects of grafting upon the seed, ii.26;
diseases of plum and peach trees, ii.227-228;
injury done to stone fruit in America by the "weevil," ii.231;
grafts of the plum and peach, ii.259;
wild varieties of pears, ii.260;
varieties of fruit-trees suitable to different climates, ii.306.
Draba sylvestris, ii.163.
Dragon, pigeon, i. 139, 141.
"Draijer" (pigeon), i. 156.
Drinking, effects of, in different climates, ii.289.
Dromedary, selection of, ii.205-206.
Druce, Mr., inter-breeding of pigs, ii.121.
Du Chaillu, fruit-trees in West Africa, i. 309.
DuchesneonFragaria vesca, i. 351, 352, 353.
Dufour, Léon, onCecidomyiaandMisocampus, i. 5.
Duck, musk, retention of perching habit by the, i. 182;
feral hybrid of, i. 190.
Duck, penguin, hybrid of, with Egyptian goose, ii.68.
Duck, wild, difficulty of rearing, ii.233;
effects of domestication on, ii.278.
Ducks, breeds of, i. 276-277;
origin of, i. 277;
history of,ibid.;
wild, easily tamed, i. 278-279;
fertility of breeds of, when crossed, i. 279;
with the plumage ofAnas boschas, i. 280;
Malayan penguin, identical in plumage with English, i. 280;
characters of the breeds of, i. 281-284;
eggs of, i. 281;
effects of use and disuse in, i. 284-286, ii.298;
feral, in Norfolk, i. 190;
Aylesbury, inheritance of early hatching by, ii.25;
reversion in, produced by crossing, ii.40;
wildness of half-bred wild, ii.45;
hybrids of, with the musk duck, ii.45-46;
assumption of male plumage by, ii.51;
crossing of Labrador and penguin, ii.97;
increased fertility of, by domestication, ii.112;
general fertility of, in confinement, ii.157;
increase of size of, by care in breeding, ii.199;
change produced by domestication in, ii.262.
Duméril, Aug., breeding ofSiredonin the branchiferous stage, ii.384.
Dun-coloured horses, origin of, i. 59.
Dureaude la Malle, feral pigs in Louisiana, ii.33;
feral fowls in Africa,ibid.;
bud-variation in the pear, i. 376;
production of mules among the Romans, ii.110.
Dusicyon sylvestris, i. 23.
Dutchrabbit, i. 107.
Dutchroller pigeon, i. 151.
Dutrochet, pelorism in the laburnum, ii.346.
Duval, growth of pears in woods in France, ii.260.
Duval-Jouve, onLeersia oryzoides, ii.91.
Duvernoy, self-impotence inLilium candidum, ii.137.
Dzierzon, variability in the characters and habits of bees, i. 298.
Earle, Dr., on colour-blindness, ii.72,328.Ears, of fancy rabbits, i. 106;deficiency of, in breeds of rabbits, i. 108;rudimentary, in Chinese sheep, ii.315;drooping, ii.301;fusion of, ii.341.Eaton, J. M., on fancy pigeons, i. 148, 153;variability of characters in breeds of pigeons, i. 161;reversion of crossed pigeons to coloration ofColumba livia, i. 198;on pigeon-fancying, i. 206, 215-216;on tumbler-pigeons, i. 209, ii.242;carrier-pigeon, i. 211;effects of interbreeding on pigeons, ii.126;properties of pigeons, ii.197-198;death of short-faced tumblers in the egg, ii.226;Archangel pigeon, ii.240.Echinodermata, metagenesis in, ii.367.Ectopistes, specific difference in number of tail-feathers in, i. 159.Ectopistes migratorius, sterile hybrids of, withTurtur vulgaris, i. 193.Edentata, correlation of dermal system and teeth in the, ii.328.Edgeworth, Mr., use of grass-seeds as food in the Punjab, i. 309.Edmonston, Dr., on the stomach inLarus argentatusand the raven, ii.302.EdwardsandColin, on English wheat in France, ii.307.Edwards, W. F., absorption of the minority in crossed races, ii.87.Edwards, W. W., occurrence of stripes in a nearly thoroughbred horse, i. 57;in foals of racehorses, i. 59.Eggs, of fowls, characters of, i. 248;variations of, in ducks, i. 281;of the silkmoth, i. 301.Egypt, ancient dogs of, i. 17-18;ancient domestication of the pigeon in, i. 204;absence of the fowl in ancient, i. 246.Egyptiangoose, hybrids of, with penguin duck, i. 282.Ehrenberg, Prof., multiple origin of the dog, i. 16;dogs of Lower Egypt, i. 25;mummies ofFelis maniculata, i. 43.Element, male, compared to a premature larva, ii.384.Elementsof the body, functional independence of the, ii.368-371.Elephant, its sterility in captivity, ii.150.Elk, Irish, correlations in the, ii.333-334.Elliot, Sir Walter, on striped horses, i. 58;Indian domestic and wild swine, i. 66;pigeons from Cairo and Constantinople, i. 132;fantail pigeons, i. 146;Lotan tumbler pigeons, i. 150;a pigeon uttering the soundYahu, i. 155;Gallus bankivain Pegu, i. 236.Ellis, Mr., varieties of cultivated plants in Tahiti, ii.256.Elm, nearly evergreen Cornish variety of the, i. 363, ii.310;foliage-varieties of the, i. 362.Elm, weeping, i. 361;not reproduced by seed, ii.19.Emberiza passerina, ii.158.Embryos, similarity of, i. 12;fusion of, ii.339.Engel, onLaurus sassafras, ii.274.England, domestication ofBos longifronsin, i. 81;selection of horses in, in mediæval times, ii.203;laws against the early slaughter of rams in, ii.203.Ephemeridæ, development of the, ii.366.Epidendrum cinnabarinumandE. zebra, ii.134.Epilepsy, hereditary, ii.8,78.Erdt, disease of the white parts of cattle, ii.337.Ericaceæ, frequency of contabescence in the, ii.165.Erichthonius, an improver of horses by selection, ii.202.Erman, on the fat-tailed Kirghisian sheep, i. 98, ii.280;on the dogs of the Ostyaks, ii.206.Erodium, ii.59.Erythrina Crista-galliandE. herbacea, hybrids of, ii.265.Esquilant, Mr., on the naked young of dun-coloured pigeons, i. 170.Esquimauxdogs, their resemblance to wolves, i. 21;selection of, ii.206.Eudes-Deslongchamps, on appendages under the jaw of pigs, i. 75-76.Euonymus Japonicus, i. 383.Europeancultivated plants, still wild in Europe, i. 307.Evans, Mr., on the Lotan tumbler pigeon, i. 150.Evelyn, pansies grown in his garden, i. 368.Everest, R., on the Newfoundland dog in India, i. 36, ii.305;degeneration of setters in India, i. 38;Indian wild boars, i. 66.Ewes, hornless, ii.350.Extinctionof domestic races, i. 221.Eyes, hereditary peculiarities of the, ii.8-10;loss of, causing microphthalmia in children, ii.24;modification of the structure of, by natural selection, ii.222-223;fusion of, ii.341.Eyebrows, hereditary elongation of hairs in, ii.8.Eyelids, inherited peculiarities of the, ii.8.Eyton, Mr., on gestation in the dog, i. 30;variability in number of vertebræ in the pig, i. 74;individual sterility, ii.162.
Earle, Dr., on colour-blindness, ii.72,328.
Ears, of fancy rabbits, i. 106;
deficiency of, in breeds of rabbits, i. 108;
rudimentary, in Chinese sheep, ii.315;
drooping, ii.301;
fusion of, ii.341.
Eaton, J. M., on fancy pigeons, i. 148, 153;
variability of characters in breeds of pigeons, i. 161;
reversion of crossed pigeons to coloration ofColumba livia, i. 198;
on pigeon-fancying, i. 206, 215-216;
on tumbler-pigeons, i. 209, ii.242;
carrier-pigeon, i. 211;
effects of interbreeding on pigeons, ii.126;
properties of pigeons, ii.197-198;
death of short-faced tumblers in the egg, ii.226;
Archangel pigeon, ii.240.
Echinodermata, metagenesis in, ii.367.
Ectopistes, specific difference in number of tail-feathers in, i. 159.
Ectopistes migratorius, sterile hybrids of, withTurtur vulgaris, i. 193.
Edentata, correlation of dermal system and teeth in the, ii.328.
Edgeworth, Mr., use of grass-seeds as food in the Punjab, i. 309.
Edmonston, Dr., on the stomach inLarus argentatusand the raven, ii.302.
EdwardsandColin, on English wheat in France, ii.307.
Edwards, W. F., absorption of the minority in crossed races, ii.87.
Edwards, W. W., occurrence of stripes in a nearly thoroughbred horse, i. 57;
in foals of racehorses, i. 59.
Eggs, of fowls, characters of, i. 248;
variations of, in ducks, i. 281;
of the silkmoth, i. 301.
Egypt, ancient dogs of, i. 17-18;
ancient domestication of the pigeon in, i. 204;
absence of the fowl in ancient, i. 246.
Egyptiangoose, hybrids of, with penguin duck, i. 282.
Ehrenberg, Prof., multiple origin of the dog, i. 16;
dogs of Lower Egypt, i. 25;
mummies ofFelis maniculata, i. 43.
Element, male, compared to a premature larva, ii.384.
Elementsof the body, functional independence of the, ii.368-371.
Elephant, its sterility in captivity, ii.150.
Elk, Irish, correlations in the, ii.333-334.
Elliot, Sir Walter, on striped horses, i. 58;
Indian domestic and wild swine, i. 66;
pigeons from Cairo and Constantinople, i. 132;
fantail pigeons, i. 146;
Lotan tumbler pigeons, i. 150;
a pigeon uttering the soundYahu, i. 155;
Gallus bankivain Pegu, i. 236.
Ellis, Mr., varieties of cultivated plants in Tahiti, ii.256.
Elm, nearly evergreen Cornish variety of the, i. 363, ii.310;
foliage-varieties of the, i. 362.
Elm, weeping, i. 361;
not reproduced by seed, ii.19.
Emberiza passerina, ii.158.
Embryos, similarity of, i. 12;
fusion of, ii.339.
Engel, onLaurus sassafras, ii.274.
England, domestication ofBos longifronsin, i. 81;
selection of horses in, in mediæval times, ii.203;
laws against the early slaughter of rams in, ii.203.
Ephemeridæ, development of the, ii.366.
Epidendrum cinnabarinumandE. zebra, ii.134.
Epilepsy, hereditary, ii.8,78.
Erdt, disease of the white parts of cattle, ii.337.
Ericaceæ, frequency of contabescence in the, ii.165.
Erichthonius, an improver of horses by selection, ii.202.
Erman, on the fat-tailed Kirghisian sheep, i. 98, ii.280;
on the dogs of the Ostyaks, ii.206.
Erodium, ii.59.
Erythrina Crista-galliandE. herbacea, hybrids of, ii.265.
Esquilant, Mr., on the naked young of dun-coloured pigeons, i. 170.
Esquimauxdogs, their resemblance to wolves, i. 21;
selection of, ii.206.
Eudes-Deslongchamps, on appendages under the jaw of pigs, i. 75-76.
Euonymus Japonicus, i. 383.
Europeancultivated plants, still wild in Europe, i. 307.
Evans, Mr., on the Lotan tumbler pigeon, i. 150.
Evelyn, pansies grown in his garden, i. 368.
Everest, R., on the Newfoundland dog in India, i. 36, ii.305;
degeneration of setters in India, i. 38;
Indian wild boars, i. 66.
Ewes, hornless, ii.350.
Extinctionof domestic races, i. 221.
Eyes, hereditary peculiarities of the, ii.8-10;
loss of, causing microphthalmia in children, ii.24;
modification of the structure of, by natural selection, ii.222-223;
fusion of, ii.341.
Eyebrows, hereditary elongation of hairs in, ii.8.
Eyelids, inherited peculiarities of the, ii.8.
Eyton, Mr., on gestation in the dog, i. 30;
variability in number of vertebræ in the pig, i. 74;
individual sterility, ii.162.