VIRGIL, on the selection of seed corn. -of cattle and sheep.

VIRGINIAN Islands, ponies of.

VISION, hereditary peculiarities of. -in amphibious animals. -varieties of. -affections of organs of, correlated with other peculiarities.

Vitis vinifera.

Viverra, sterility of species of, in captivity.

VOGEL, varieties of the date palm.

VOGT, on the indications of stripes on black kittens.

VOICE, differences of, in fowls. -peculiarities of, in ducks. -inheritance of peculiarities of.

VOLZ, on the history of the dog. -ancient history of the fowl. -domestic ducks unknown to Aristotle. -Indian cattle sent to Macedonia by Alexander. -mention of mules in the Bible. -history of the increase of breeds.

VON BERG, on Verbascum phoeniceum.

VOORHELM, G., his knowledge of hyacinths.

VROLIK, Prof., on polydactylism. -influence of the shape of the mother's pelvis on her child's head.

WADE, drooping eyelids transmitted.

WADERS, behaviour of, in confinement.

WAGNER, MORITZ, oriental dogs.

WAHLENBORG, on the propagation of Alpine plants by buds, runners, bulbs, etc.

"WAHLVERWANDTSCHAFT" of Gartner.

WALES, white cattle of, in the tenth century.

WALKER, A., on intermarriage. on the inheritance of polydactylism.

WALKER, D., advantage of change of soil to wheat.

WALKER, R., reversion in cattle.

WALLACE, A.R., on the multiple origin of the dog. -on a striped Javanese horse. -on the conditions of life of feral animals. -artificial alteration of the plumage of birds. -on polymorphic butterflies. -on reversion. -on the limits of change.

WALLACE, Dr., on the sterility of Sphingidae hatched in autumn.

WALLACHIAN sheep, sexual peculiarities in the horns of.

WALLFLOWER, bud-variation in.

WALLICH, Dr., on Thuja pendula or filiformis.

WALNUTS. -thin-shelled, attacked by tomtits. -grafting of.

WALSH, B.D., on attacks of insects. -on galls. -his "Law of equable variability."

WALTHER, F.L., on the history of the dog. -on the intercrossing of the zebu and ordinary cattle.

WARING, Mr., on individual sterility.

WATERER, Mr., spontaneous production of Cytisus alpino-laburnum.

WATERHOUSE, G.R., on the winter-colouring of Lepus variabilis.

WATERTON, C., production of tailless foals. -on taming wild ducks. -on the wildness of half-bred wild ducks. -assumption of male characters by a hen.

WATSON, H.C., on British wild fruit-trees. -on the non-variation of weeds. -origin of the plum. -variation in Pyrus malus. -on Viola amoena and tricolor. -on reversion in Scotch kail. -fertility of Draba sylvestris when cultivated. -on generally distributed British plants.

WATTLES, rudimentary, in some fowls.

WATTS, Miss, on Sultan fowls.

WEBB, JONAS, interbreeding of sheep.

WEBER, effect of the shape of the mother's pelvis on her child's head.

WEDDERBURN, Mr., correlation of teeth and hair.

WEEDS, supposed necessity for their modification, coincidently with cultivated plants.

WEEPING varieties of trees.

WEEPING habit of trees, capricious inheritance of.

WEEVIL, injury done to stone-fruit by, in North America.

WEIJENBERGH, on parthenogenesis.

WEIR, H., large litter of pigs.

WEIR, JENNER, on the japanned peacock. -mare and quagga. -wildness of mule siskins.

WEISMANN, Prof., reversion from unnatural conditions. -isolation. -dimorphic butterflies. -causes of variability.

WELSH cattle, descended from Bos longifrons.

WEST Indies, feral pigs of. -effect of climate of, upon sheep.

WESTERN, Lord, change effected by, in pigs. -in the sheep.

WESTPHALIA, striped young pigs in.

WESTWOOD, J.O., on peloric flowers of Calceolaria.

WETHERELL, Mr., on inheritance of mutilations.

WHATELY, Archbishop, on grafting early and late thorns.

WHEAT, specific unity or diversity of. -Hasora. -presence or absence of barbs in. -Godron on variations in. -varieties of. -effects of soil and climate on. -deterioration of. -crossing of varieties of. -in the Swiss lake-dwellings. -selection applied to. -increased fertility of hybrids of, with Aegilops. -advantage of change of soil to. -differences of, in various parts of India. -continuous variation in. -red, hardiness of. -Fenton. -natural selection in. -varieties of, found wild. -effects of change of climate on. -ancient variety of.

Charles Darwin

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