—sterility of Alpine plants in gardens, 18; PAMPAS, feral cattle on the, 3.
_Pandanus,_ 22.
PANGENESIS, hypothesis of, 27.
_Panicum,_ seeds of, used as food, 9; —found in the Swiss lake-dwellings, 9.
PANSY, 10.
PAPPUS, abortion of the, in _Carthamus,_ 24.
_Paradoxurus,_ sterility of species of, in captivity, 18.
PARAGUAY, cats of, 1; —cattle of, 3; —horses of, 3; —dogs of, 3; —black-skinned domestic fowl of, 7.
PARALLEL variation, 26.
PARAMOS, woolly pigs of, 3.
PARASITES, liability to attacks of, dependent on colour, 21.
PARIAH dog, with crooked legs, 1; —resembling the Indian wolf, 1.
PARISET, inheritance of handwriting, 13.
PARKER, W. K., number of vertebræ in fowls, 7.
PARKINSON, Mr., varieties of the hyacinth, 10.
PARKYNS, MANSFIELD, on _Columba guinea,_ 6.
PARMENTIER, differences in the nidification of pigeons, 5; —on white pigeons, 21.
PARROTS, general sterility of, in confinement, 18; —alteration of plumage of, 23.
PARSNIP, reversion in, 13; —influence of selection on, 20; —wild, enlargement of roots of, by cultivation, 9.
PARTRIDGE, sterility of, in captivity, 18.
PARTURITION, difficult, hereditary, 12.
_Parus major,_ 21.
—contabescence of female organs in, 18.
_Passiflora alata,_ fertility of, when grafted, 19.
PASTRANA, Julia, peculiarities in the hair and teeth of, 25.
PASTURE and climate, adaptation of breeds of sheep to, 3 (2).
PATAGONIA, crania of pigs from, 3.
PATAGONIAN rabbit, 4.
PATERSON, R., on the Arrindy silk-moth, 24.
PAUL, W., on the hyacinth, 10 (2); —varieties of pelargoniums, 11; —weakness of transmission in hollyhocks, 14; —improvement of pelargoniums, 20.
PEACH, 10; —derived from the almond, 10; —stones of, figured, 10; —contrasted with almonds, 10; —hybrids of, 10; —persistency of races of, 10; —trees producing nectarines, 10; —pendulous, 12; —variation by selection in, 20; —peculiar disease of the, 21; —glands on the leaves of the, 21; —antiquity of the, 24; —increased hardiness of the, 24; —varieties of, adapted for forcing, 24; —yellow-fleshed, liable to certain diseases, 25.
PEACH-ALMOND, 27.
PEAFOWL, origin of, 8; —feral, in Jamaica, 6; —comparative fertility of, in wild and tame states, 16, 22; —white, 25.
PEARS, 10; —reversion in seedling, 13; —inferiority of, in Pliny’s time, 20; —winter nelis, attacked by aphides, 21; —soft-barked varieties of, attacked by wood-boring beetles, 21; —origination of good varieties of, in woods, 22; —Forelle, resistance of, to frost, 24.
PEAS, 9; —origin of, 9; —varieties of, 9; —fruit and seeds figured, 9; —persistency of varieties, 9; —effect of crossing on the female organs in, 11; —maturity of, accelerated by selection, 20; —varieties of, produced by selection, 20; —thin-shelled, liable to the attacks of birds, 21; —reversion of, by the terminal seed in the pod, 26.
PECCARY, breeding of the, in captivity, 18.
PEDIGREES of horses, cattle, greyhounds, game-cocks, and pigs, 12.
PEGU, cats of, 1; —horses of, 2.
PELARGONIUMS, multiple origin of, 10; —zones of, 10; —variegation in, accompanied by dwarfing, 11; —by reversion, 13; —advantage of change of soil to, 18; —improvement of, by selection, 20; —scorching of, 21; —numbers of, raised from seed, 21; —effects of conditions of life on, 23; —correlation of contracted leaves and flowers in, 25 (2).
_Pelargonium fulgidum,_ conditions of fertility in, 18.
“PELONES,” a Columbian breed of cattle, 3, 6.
PELORIC flowers, tendency of, to acquire the normal form, 14; —fertility or sterility of, 18 (2).
PELVIS, characters of, in rabbits, 4; —in pigeons, 5; —in fowls, 7; —in ducks, 8.
PEMBROKE cattle, 3.
PENDULOUS trees, 10, 26; —uncertainty of transmission of, 12 (2).
PENGUIN ducks, 8 (2); —hybrid of the, with the Egyptian goose, 8.
PENNANT, production of wolf-like curs at Fochabers, 1; —on the Duke of Queensberry’s wild cattle, 3.
_Pennisetum,_ seeds of, used as food in the Punjab, 9.
_Pennisetum distichum,_ seeds of, used as food in Central Africa, 9.
PERCIVAL, Mr., on inheritance in horses, 12; —on horn-like processes in horses, 2.
_Perdix rubra,_ occasional fertility of, in captivity, 18.
PERIOD of action of causes of variability, 22.
PERIOSTEUM of a dog, producing bone in a rabbit, 27.
PERIWINKLE, sterility of, in England, 19.
PERSIA, estimation of pigeons in, 6; —carrier pigeon of, 5; —tumbler pigeon of, 5; —cats of, 1; —sheep of, 3.
PERSISTENCE of colour in horses, 2; —of generic peculiarities, 4.
PERU, antiquity of maize in, 9; —peculiar potato from, 9; —selection of wild animals practised by the Incas of, 20 (2).
PETALS, rudimentary, in cultivated plants, 24; PETUNIAS, multiple origin of, 10.
PEYRITSCH, Dr., vegetable teratology, 13.
“PFAUEN-TAUBE,” 5.
_Phalænopsis,_ pelorism in, 26.
PHALANGES, deficiency of, 14.
PHEASANT, assumption of male plumage by the hen, 13; —wildness of hybrids of, with the common fowl, 13; —prepotency of the, over the fowl, 14; —diminished fecundity of the, in captivity, 18.
PHEASANTS, golden and Lady Amherst’s, 7.
PHEASANT-FOWLS, 7.
PHILIPEAUX, regeneration of limbs in the salamander, 27.
PHILIPPAR, on the varieties of wheat, 9.
PHILIPPINE Islands, named breeds of game fowl in the, 7.
PHILLIPS, Mr., on bud-variation in the potato, 11.
_Phlox,_ bud-variation by suckers in, 11.
PHTHISIS, affection of the fingers in, 25.
PHYLLOXERA, 10.
PICKERING, Dr., on the grunting voice of humped cattle, 3; —occurrence of the head of a fowl in an ancient Egyptian procession, 7; —seeding of ordinarily seedless fruits, 18; —extinction of ancient Egyptian breeds of sheep and oxen, 28; —on an ancient Peruvian gourd, 28.
PICOTEES, effect of conditions of life on, 23.
PICTET, A., oriental names of the pigeon, 6.
PICTET, Prof., origin of the dog, 1; —on fossil oxen, 3.
PIEBALDS, probably due to reversion, 13.
PIÉTREMENT, M., on the ribs of horses, 2.
PIGEAUX, hybrids of the hare and rabbit, 18.
PIGEON à cravate, 5.
PIGEON bagadais, 5 (2).
PIGEON coquille, 5.
PIGEON cygne, 5.
PIGEON heurté, 5.
PIGEON pattu plongeur, 5.
PIGEON polonais, 5.
PIGEON romain, 5 (2).
PIGEON tambour, 5.
PIGEON turc, 5.
PIGEONS, origin of, 5 (2), 6; —classified table of breeds of, 5; —pouter, 5; —carrier, 5; —runt, 5; —barbs, 5; —fantail, 5; —turbit and owl, 5; —tumbler, 5; —Jacobin, 5; —trumpeter, 5; —other breeds of, 5; —differences of, equal to generic, 5; —individual variations of, 5; —variability of peculiarities characteristic of breeds in, 5; —osteology of, 5; —correlation of growth in, 5, 25; —young of some varieties naked when hatched, 5, 25; —effects of disuse in, 5; —settling and roosting in trees, 6; —floating in the Nile to drink, 6; —dovecot, 6 (2); —arguments for unity of origin of, 6; —feral, in various places, 6, 13; —unity of coloration in, 6; —reversion of mongrel, to coloration of _C. livia,_ 6; —history of the cultivation of, 6; —history of the principal races of, 6; —mode of production of races of, 6; —reversion in, 13; —by age, 13; —produced by crossing in, 13 (2); —prepotency of transmission of characters in breeds of, 14 (2); —sexual differences in some varieties of, 14; —period of perfect plumage in, 14; —effect of segregation on, 15; —preferent pairing of, within the same breed, 16; —fertility of, increased by domestication, 16, 18; —effects of interbreeding and necessity of crossing, 17; —indifference of, to change of climate, 18; —among the Romans, 20; —facility of selection of, 21; —white, liable to the attacks of hawks, 21; —effects of disuse of parts in, 24; —fed upon meat, 24; —effect of first male upon the subsequent progeny of the female, 11; —homology of the leg and wing feathers in, 25; —union of two outer toes in feather-legged, 25; —correlation of beak, limbs, tongue, and nostrils, 25; —permanence of breeds of, 28.
PIGS, of Swiss lake-dwellings, 3; —modifications of skull in, 3; —length of intestines in, 3, 24; —period of gestation of, 3; —number of vertebræ and ribs in, 3; —development of tusks and bristles in, 3; —striped young of, 3; —reversion of feral, to wild type, 3 (2), 13 (2); —production and changes of breeds of, by intercrossing, 3; —effects produced by the first male upon the subsequent progeny of the female, 11; —pedigrees of, 12; —hybrid, wildness of, 13; —disappearance of tusks in male under domestication, 14; —solid-hoofed, 28; —mutual fertility of all varieties of, 16; —increased fertility by domestication, 16; —ill effects of close interbreeding in, 17 (2); —influence of selection on, 20; —prejudice against certain colours in, 20, 21, 25; —unconscious selection of, 20; —similarity of the best breeds of, 21; —change of form in, 23; —effects of disuse of parts in, 24; —ears of, 24; —tail of, grafted upon the back, 27; —extinction of the older races of, 28.
PIMENTA, 15.
PIMPERNEL, 19.
PINE-APPLE, sterility and variability of the, 22.
PINK, Chinese, 25.
PINKS, bud-variation in, 11; PIORRY, on hereditary disease, 12, 14.
PISTILS, rudimentary, in cultivated plants, 24.
PISTOR, sterility of some mongrel pigeons, 6; —fertility of pigeons, 16.
PITYRIASIS versicolor, inheritance of, 14.
PLANCHON, G., on a fossil vine, 10; PLANE-TREE, variety of the, 10.
PLANTIGRADE carnivora, general sterility of the, in captivity, 18.
PLANTS, progress of cultivation of, 9 (2); —cultivated, their geographical derivation, 9; —comparative fertility of wild and cultivated, 16; —self-impotent, 17; —dimorphic and trimorphic, 17; —sterility of, from changed conditions, 18; —from contabescence of anthers, 18 (2); —from doubling of the flowers, 18 (2); —from seedless fruit, 18; —from excessive development of vegetative organs, 18; —influence of selection on, 20; —variation by selection, in useful parts of, 20; —variability of, induced by crossing, 22; —direct action of change of climate on, 23; —change of period of vegetation in, 24; —varieties of, suitable to different climates, 24; —correlated variability of, 25; —antiquity of races of, 28.
PLASTICITY, inheritance of, 21.
PLATEAU, F., on the vision of amphibious animals, 20.
PLATO, notice of selection in breeding dogs by, 20.
PLICA polonica, 23.
PLINY, on the crossing of shepherd dogs with the wolf, 1; —on Pyrrhus’ breed of cattle, 20; —on the estimation of pigeons among the Romans, 6; —pears described by, 20.
PLUM, 10; —bud-variation in the, 11; —peculiar disease of the, 21; —flower-buds of, destroyed by bullfinches, 21; —purple-fruited, liable to certain diseases, 25.
PLUMAGE, inherited peculiarities of, in pigeons, 5 (2); —sexual peculiarities of, in fowls, 7.
PLURALITY of races, Pouchet’s views on, 1.
_Poa,_ seeds of, used as food, 9; —species of, propagated by bulblets, 18.
PODOLIAN cattle, 3.
POINTERS, modification of, 1; —crossed with the foxhound, 3.
POIS sans parchemin, 21.
POITEAU, origin of _Cytisus adami,_ 11; —origin of cultivated varieties of fruit-trees, 22.
POLISH fowl, 7 (6); —skull figured, 7; —section of skull figured, 7; —development of protuberance of skull, 7; POLISH, or Himalayan rabbit, 4.
POLLEN, 27 (2); —action of, 16; —injurious action of, in some orchids, 17 (2); —resistance of, to injurious treatment, 18; —prepotency of, 19.
POLLOCK, Sir F., transmission of variegated leaves in _Ballota nigra,_ 11; —on local tendency to variegation, 23.
POLYANTHUS, 12.
POLYDACTYLISM, inheritance of, 12; PONIES, most frequent on islands and mountains, 2; —Javanese, 2.
POOLE, Col., on striped Indian horses, 2 (2); POPLAR, Lombardy, 10.
PÖPPIG, on Cuban wild dogs, 1.
POPPY, found in the Swiss lake-dwellings, 9 (2); —with the stamens converted into pistils, 10; —differences of the, in different parts of India, 18; —monstrous, fertility of, 18; —black-seeded, antiquity of, 28.
PORCUPINE, breeding of, in captivity, 18.
PORCUPINE family, 12, 14.
_Porphyrio,_ breeding of a species of, in captivity, 18.
PORTAL, on a peculiar hereditary affection of the eye, 12.
PORTO Santo, feral rabbits of, 4.
POTATO, 9 (2); —bud-variation by tubers in the, 11 (2); —graft-hybrid of, by union of half-tubers, 11; —sterility of, 18; —advantage of change of soil to the, 18.
POTATO, sweet, sterility of the, in China, 18; —varieties of the, suited to different climates, 24.
POUCHET, M., his views on plurality of races, 1.
POUTER pigeons, 5; —history of, 6.
POWIS, Lord, experiments in crossing humped and English cattle, 3, 13.
POYNTER, Mr., on a graft-hybrid rose, 11.
PRAIRIE wolf, 1.
PRECOCITY of highly-improved breeds, 25.
PREPOTENCY of pollen, 19.
PREPOTENCY of transmission of character, 14, 19; —in the Austrian emperors and some Roman families, 14; —in cattle, 14 (2); —in sheep, 14; —in cats, 14; —in pigeons, 14; —in fowls, 14; —in plants, 14; —in a variety of the pumpkin, 10; —in the jackal over the dog, 14; —in the ass over the horse, 14; —in the pheasant over the fowl, 14; —in the penguin duck over the Egyptian goose, 14; —discussion of the phenomena of, 14.
PRESCOTT, Mr., on the earliest known European flower-garden, 20.
PRESSURE, mechanical, a cause of modification, 26 (2).
PREVOST and Dumas, on the employment of several spermatozoids to fertilise one ovule, 27.
PREYER, Prof., on the effect of circumcision, 12.
PRICE, Mr., variations in the structure of the feet in horses, 2.
PRICHARD, Dr., on polydactylism in the negro, 12; —on the Lambert family, 14; —on an albino negro, 21; —on Plica polonica, 23.
PRIMROSE, 28; —double, rendered single by transplantation, 18.
_Primula,_ intercrossing of species of, 10; —with coloured calyces, sterility of, 18.
PRINCE, Mr., on the intercrossing of strawberries, 27.
PRINGSHEIM, on conjugation, 27.
_Procyon,_ sterility of, in captivity, 18.
PROLIFICNESS, increased by domestication, 19.
PROTOZOA, reproduction of the, 27.
_Prunus avium,_ 10.
PRUSSIA, wild horses in, 2.
_Psophia,_ general sterility of, in captivity, 18.
PTARMIGAN fowls, 7.
PUMPKINS, 10.
PUNO ponies of the Cordillera, 2.
PUSEY, Mr., value of crossbred sheep, 17; —preference of hares and rabbits for common rye, 21.
PUTSCHE and Vertuch, varieties of the potato, 9.
PUVIS, effects of foreign pollen on apples, 11; —supposed non-variability of monotypic genera, 22.
—assumption of the hen-plumage by the male, in confinement, 18.
PYRRHUS, his breed of cattle, 20.
_Pyrus,_ fastigiate Chinese species of, 23.
_Pyrus acerba,_ 10.
_Pyrus præcox,_ 10.
QUAGGA, previous impregnation by, 11.
QUATREFAGES, A. DE, on the burrowing of a bitch to litter, 1; —selection in the silkworm, 8; —development of the wings in the silk-moth, 8, 24; —on varieties of the mulberry, 10; —special raising of eggs of the silk-moth, 20; —on disease of the silkworm, 21; —on monstrosities in insects, 22, 27; —on a change in the breeding season of the Egyptian goose, 24; —tendency to similarity in the best races, 21; —on the independent existence of the sexual elements, 27.
QUINCE, pears grafted on the, 22.
RABBITS, domestic, their origin, 4; —of Mount Sinai and Algeria, 4; —breeds of, 4; —Himalayan, Chinese, Polish, or Russian, 4, 15; —feral, 4; —of Jamaica, 4; —of the Falkland Islands, 4; —osteological characters of, 4; —discussion of modifications in, 4, 5; —one-eared, transmission of peculiarity of, 12; —reversion in feral, 13; —in the Himalayan, 13; —crossing of white and coloured Angora, 15; —comparative fertility of wild and tame, 16; —falsified experiments in interbreeding of, 17; —high-bred, often bad breeders, 17; —selection of, 20; —white, liable to destruction, 21; —effects of disuse of parts in, 24; —skull of, affected by drooping ears, 24; —length of intestines in, 24; —correlation of ears and skull in, 25 (2); —variations in skull of, 26; —periosteum of a dog producing bone in, 27.
RACEHORSE, origin of, 2.
RACES, modification and formation of, by crossing, 3; —natural and artificial, 21; —Pouchet’s views on plurality of, Introduction; —of pigeons, 6.
RADCLYFFE, W. F., effect of climate and soil on strawberries, 10; —constitutional differences in roses, 10.
RADLKOFER, retrogressive metamorphosis in mosses and algæ, 27.
RAFARIN, M., bud-variation and reversion, 11.
RAFFLES, Sir STAMFORD, on the crossing of Javanese cattle with _ Bos sondaicus,_ 20.
RAM, goat-like, from the Cape of Good Hope, 14.
RAMU, M., on appendages to throat of goat, 3.
RANCHIN, heredity of diseases, 12.
RANGE of gallinaceous birds on the Himalaya, 7.
RANKE, on the effects of use and disuse of organs, 24.
RAPE, 9.
RATTLESNAKE, experiments with poison of the, 23.
RAVEN, stomach of, affected by vegetable diet, 24.
RÉ, COMTE, on the assumption of a yellow colour by all varieties of maize, 9.
RÉAUMUR, effect of confinement upon the cock, 13; —fertility of fowls in most climates, 18.
REED, Mr., atrophy of the limbs of rabbits, consequent on the destruction of their nerves, 24.
REGENERATION of amputated parts in man, 12; —in the human embryo, 27; —in the lower vertebrata, insects, and myriapoda, 27.
RE-GROWTH of amputated joints, 27.
REGNIER, early cultivation of the cabbage by the Celts, 9; —selection practised by the Celts, 20.
REINDEER, individuals recognised by the Laplanders, 22.
REISSEK, experiments in crossing _Cytisus purpureus_ and _ laburnum,_ 11; RELATIONS, characters of reproduced in children, 13.
RENGGER, occurrence of jaguars with crooked legs in Paraguay, 1; —feral dogs of La Plata, 1; —on the aguara, 1; —dogs of Paraguay, 15; —feral pigs of Buenos Ayres, 3; —on the refusal of wild animals to breed in captivity, 18; —sterility of plantigrade carnivora in captivity, 18; —abortions produced by wild animals in captivity, 18.
REPRODUCTION, sexual and asexual, contrasted, 27; —unity of forms of, 27; —antagonism of, to growth, 27.
RETINITIS, pigmentary, in deaf-mutes, 25.
REUTER, Herr, potato-grafting, 11.
—in pigeons, 13; —in cattle, 13; —in sheep, 13; —in fowls, 13; —in the heartsease, 13; —in vegetables, 13; —in feral animals and plants, 13; —to characters derived from a previous cross in man, dogs, pigeons, pigs, and fowls, 13; —in hybrids, 13; —by age in fowls, cattle, etc., 13 (2); —partial, from an injury, 13; —caused by crossing, 13; —explained by latent characters, 13; —producing peloric flowers, 13; —of feral pigs to the wild type, 3 (2); —of supposed feral rabbits to the wild type, 4 (3); —of pigeons, in coloration, when crossed, 6; —in fowls, 7; —in the silkworm, 8; —in the pansy, 10; —of varieties of the China rose in St. Domingo, 11; —by buds in pinks and carnations, 11; —of laciniated varieties of trees to the normal form, 11; —in variegated leaves of plants, 11; —in tulips, 11; —of suckers of the seedless barberry to the common form, 11; —by buds in hybrids of _ Tropæolum,_ 11; —in plants, 11; —of crossed peloric snapdragons, 14; —analogous variations due to, 26.
RHINOCEROS, breeding in captivity in India, 18.
_Rhododendron dalhousiæ,_ effect of pollen of _R. nuttallii_ upon, 11.
_Ribes rubrum,_ 11.
RIBS, number and characters of, in fowls, 7; —characters of, in ducks, 8 (2).
RICE, imperial, of China, 20; —Indian varieties of, 22; —variety of, not requiring water, 24.
RICHARDSON, H. D., on jaw-appendages in Irish pigs, 3; —management of pigs in China, 3; —occurrence of striped young in Westphalian pigs, 3; —on crossing pigs, 15; —on interbreeding pigs, 17; —on selection in pigs, 20.
RICHARDSON, Sir John, observations on the resemblance between North American dogs and wolves, 1 (2); —on the burrowing of wolves, 1; —on the broad feet of dogs, wolves, and foxes in North America, 1; —on North American horses scraping away the snow, 2.
_Ricinus,_ annual in England, 24.
RIEDEL, Dr., on the “Bagadotte” pigeon, 5; —on the Jacobin pigeon, 5; —fertility of hybrid pigeons, 6; —circumcision, 12.
RILEY, on Phylloxera, 10.
RINDERPEST, 27.
RINTOUL, Mr., potato-grafting, 11.
RISSO, on varieties of the orange, 10, 24, 25.
RIVERS, Lord, on the selection of greyhounds, 21.
RIVERS, Mr., persistency of characters in seedling potatoes, 9; —persistency of races in the peach and nectarine, 10 (2); —connection between the peach and the nectarine, 10; —persistency of character in seedling apricots, 10; —origin of the plum, 10; —seedling varieties of the plum, 10; —persistency of character in seedling plums, 10; —bud-variation in the plum, 11; —plum attacked by bullfinches, 21; —variety of the apple found in a wood, 22; —on roses, 10 (2); —bud-variation in roses, 11; —production of Provence roses from seeds of the moss-rose, 11; —effect produced by grafting on the stock in jessamine, 11; —in the ash, 11; —on grafted hazels, 11; —hybridisation of a weeping thorn, 12; —experiments with the seed of the weeping elm and ash, 12; —variety of the cherry with curled petals, 21.
RIVIÈRE, reproduction of _Oncidium cavendishianum,_ 17.
ROBERTS, Mr., on inheritance in the horse, 12.
ROBERTSON, Mr., on glandular-leaved peaches, 10.
ROBINET, on the silkworm, 8, 20.
_Robinia,_ 23.
ROBSON, Mr., deficiencies of half-bred horses, 12.
ROBSON, Mr., on the advantage of change of soil to plants, 18 (2); —on the growth of the verbena, 23; —on broccoli, 24.
ROCK pigeon, measurements of the, 5; —figured, 5.
RODENTS, sterility of, in captivity, 18.
RODWELL, J., poisoning of horses by mildewed tares, 25.
ROHILCUND, feral humped cattle in, 3.
ROLLE, F., on the history of the peach, 24.
ROLLESTON, Prof., inherited effects of injuries, 12; —incisor teeth affected in form in cases of pulmonary tubercle, 25.
ROMANES on sternum of the fowl, 7; ROMANS, estimation of pigeons by, 6; —breeds of fowls possessed by, 7 (2).
ROOKS, pied, 14.
_Rosa,_ cultivated species of, 10.
_Rosa devoniensis,_ graft-hybrid produced by, on the white Banksian rose, 11.
_Rosa indica_ and _centifolia,_ fertile hybrids of, 10.
_Rosa spinosissima,_ history of the culture of, 10.
ROSELLINI, on Egyptian dogs, 1.
ROSS, Dr., on Pangenesis, 27 (2).
ROUENNAIS, rabbit, 4.
ROUJOU, polydactylism, and arrested development, 12.
ROULIN, on the dogs of Juan Fernandez, 1; —on South American cats, 1; —striped young pigs, 3; —feral pigs in South America, 3, 13; —effects of heat on the hides of cattle in South America, 3; —fleece of sheep in the hot valleys of the Cordilleras, 3; —diminished fertility of these sheep, 18; —on black-boned South American fowls, 7; —variation of the guinea-fowl in tropical America, 8; —frequency of striped legs in mules, 13; —geese in Bogota, 18; —sterility of fowls introduced into Bolivia, 18.
ROYLE, Dr., Indian varieties of the mulberry, 10; —variety of rice not requiring irrigation, 24; —sheep from the Cape in India, 24.
_Rubus,_ pollen of, 22.
RUDIMENTARY organs, 1, 24.
RUFZ DE LAVISON, extinction of breeds of dogs in France, 28.
RUMINANTS, general fertility of, in captivity, 18.
RUMPLESS fowls, 7.
RUNTS, 5; —history of, 6; —lower jaws and skull figured, 5.
RUSSELL, Lord A., spiegelcarpe, 21.
RUSSIAN or Himalayan rabbit, 4.
RUTIMEYER, Prof., dogs of the Neolithic period, 1; —diversity of early domesticated horses, 2; —on humped cattle, 3; —parentage of European breeds of cattle, 3, 28; —goats of the Swiss lake-dwellings, 3; —absence of fowls in the Swiss lake-dwellings, 7; —on crossing cattle, 15; —differences in the bones of wild and domesticated animals, 23; —decrease in size of wild European animals, 28.
RYE, wild, De Candolle’s observations on, 9; —found in the Swiss lake-dwellings, 9; —common, preferred by hares and rabbits, 21; —less variable than other cultivated plants, 22.
SABINE, Mr., on the cultivation of _Rosa spinosissima,_ 10; —on the cultivation of the dahlia, 10 (2), 22; —effect of foreign pollen on the seed-vessel in _Amaryllis vittata,_ 11.
ST. ANGE, influence of the pelvis on the shape of the kidneys in birds, 26.
ST. DOMINGO, wild dogs of, 1; —bud-variation of dahlias in, 11.
ST. HILAIRE, AUG., milk furnished by cows in South America, 24; —husked form of maize, 9.
ST. JOHN, C., feral cats in Scotland, 1; —taming of wild ducks, 8.
ST. VALÉRY apple, singular structure of the, 10; —artificial fecundation of the, 11.
ST. VITUS’ Dance, period of appearance of, 14.
SACHS, Prof., flow of sap, 24.
SAGERET, origin and varieties of the cherry, 10 (2); —origin of varieties of the apple, 10; —incapacity of the cucumber for crossing with other species, 10; —varieties of the melon, 10; —on gourds, 16; —effects of selection in enlarging fruit, 20; —on the tendency to depart from type, 21; —variation of plants in particular soils, 23.
SALAMANDER, experiments on the, 24, 27 (2); —regeneration of lost parts in the, 27.
SALISBURY, Mr., on the production of nectarines by peach-trees, 10; _Salix,_ intercrossing of species of, 10.
SALLÉ, feral guinea-fowl in St. Domingo, 8.
SALMON, early breeding of male, 27.
SALTER, Mr., on bud-variation in pelargoniums, 11; —in the Chrysanthemum, 11; —transmission of variegated leaves by seed, 11; —application of selection to bud-varieties of plants, 11; —accumulative effect of changed conditions of life, 22; —on the variegation of strawberry leaves, 23; —on pollen within ovules, 27.
SALTER, S. J., hybrids of _Gallus sonneratii_ and the common fowl, 7; —crossing of races or species of rats, 15.
SALVIN, habits of the jackal, 1; SAMESREUTHER, on inheritance in cattle, 12.
SANDFORD. _See_ DAWKINS.
SANSON, M., origin of the horse, 2; —lumbar vertebra of pigs, 3.
SAP, ascent of the, 24.
SAPORTA, on Pistacia, 11.
SARDINIA, ponies of, 2.
SARS, on the development of the hydroida, 27.
SATIATION of the stigma, 11 (2).
_Saturnia pyri,_ sterility of, in confinement, 18.
SAUL, on the management of prize gooseberries, 10.
SAUVIGNY, varieties of the gold-fish, 8.
SAVAGES, their indiscriminate use of plants as food, 9; —fondness of, for taming animals, 18.
SAVI, effect of foreign pollen on maize, 11.
SAYZID MOHAMMED MUSARI, on carrier-pigeons, 5; —on a pigeon which utters the sound “Yahu,” 5.
SCANDEROONS (pigeons), 5 (2).
SCANIA, remains of _Bos frontosus_ found in, 3.
SCAPULA, characters of, in rabbits, 4; —in fowls, 7; —in pigeons, 5; —alteration of, by disuse, in pigeons, 5.
SCARLET fever, 23.
SCHAAFFHAUSEN on the horses represented in Greek statues, 20.
SCHLEIDEN, excess of nourishment a cause of variability, 22.
SCHMERLING, Dr., varieties of the dog found in a cave, 1.
SCHOMBURGK, Sir R., on the dogs of Indians of Guiana, 1 (2), 20; —on the musk duck, 6; —bud-variation in the banana, 11; —reversion of varieties of the China rose in St. Domingo, 11; —sterility of tame parrots in Guiana, 18; —selection of fowls in Guiana, 20.
SCHREIBERS, on _Proteus,_ 24.
SCHÜTZE on the Torfschwein, 3.
—striped character of young wild pigs, 3; —animals breeding in Zoological Gardens, 18; —birds breeding in Zoological Gardens, 18; —on the breeding of birds in captivity, 18 (2).
SCOTCH fir, local variation of, 10.
SCOTCH kail and cabbage, cross between, 15.
SCOTT, JOHN, irregularities in the sex of the flowers of maize, 9; —reproduction of orchids, 17; —acclimatisation of the sweet pea in India, 24; —number of seeds in _Acropera_ and _Gongora,_ 27.
SCROPE, on the Scotch deerhound, 14, 17.
SCUDDER, Dr., on regrowth, 27.
SEBRIGHT, Sir John, effects of close interbreeding in dogs, 20; —care taken by, in selection of fowls, 20.
SEDGWICK, W., effects of crossing on the female, 11; —on hereditary diseases, 12; —hereditary affections of the eye, 12, 14; —inheritance of polydactylism and anomalies of the extremities, 12 (2); —morbid uniformity in the same family, 12; —on deaf-mutes, 12; —inheritance of injury to the eye, 12; —atavism in diseases and anomalies of structure, 13; —sexual limitation of the transmission of peculiarities in man, 14 (2); —on the effects of hard-drinking, 23; —inherited baldness with deficiency of teeth, 25 (2); —occurrence of a molar tooth in place of an incisor, 27; —diseases occurring in alternate generations, 27.
SEDILLOT, on the removal of portions of bone, 24.
SEEDS, early selection of, 20; —rudimentary, in grapes, 24; —relative position of, in the capsule, 26.
SEEDS and buds, close analogies of, 11.
SEEMANN, B., crossing of the wolf and Esquimaux dogs, 1.
SEGREGATION of characters, 11 (2).
SELBY, P. J., on the bud-destroying habits of the bullfinch, 21.
SELECTION, 20; —by the ancients and semi-civilised people, 20; —of trifling characters, 20; —effects of, shown by differences in most valued parts, 20; —produced by accumulation of variability, 20; —natural, as affecting domestic productions, 19, 21; —as the origin of species, genera, and other groups, 28; —circumstances favourable to, 21; —tendency of, towards extremes, 21; —possible limit of, 21;