Stripes, retained throughout groups of birds; disappearance of, in adult mammals.
Strix flammea.
Structure, existence of unserviceable modifications of.
Struggle for existence, in man.
Struthers, Dr., on the occurrence of the supra-condyloid foramen in the humerus of man.
Sturnella ludoviciana, pugnacity of the male.
Sturnus vulgaris.
Sub-species.
Suffering, in strangers, indifference of savages to.
Suicide, formerly not regarded as a crime; rarely practised among the lowest savages.
Suidae, stripes of the young.
Sulivan, Sir B.J., on speaking of parrots; on two stallions attacking a third.
Sumatra, compression of the nose by the Malays of.
Sumner, Archb., man alone capable of progressive improvement.
Sun-birds, nidification of.
Superciliary ridge in man.
Supernumerary digits, more frequent in men than in women; inheritance of; early development of.
Superstitions, prevalence of.
Superstitious customs.
Supra-condyloid foramen in the early progenitors of man.
Suspicion, prevalence of, among animals.
Swallow-tail butterfly.
Swallows deserting their young.
Swan, black, wild, trachea of the; white, young of; red beak of the; black-necked.
Swans, young.
Swaysland, Mr., on the arrival of migratory birds.
Swifts, migration of.
Swinhoe, R., on the common rat in Formosa and China; behaviour of lizards when caught; on the sounds produced by the male hoopoe; on Dicrurus macrocercus and the spoonbill; on the young of Ardeola; on the habits of Turnix; on the habits of Rhynchaea bengalensis; on Orioles breeding in immature plumage.
Sylvia atricapilla, young of.
Sylvia cinerea, aerial love-dance of the male.
Sympathy, among animals; its supposed basis.
Sympathies, gradual widening of.
Syngnathous fishes, abdominal pouch in male.
Sypheotides auritus, acuminated primaries of the male; ear-tufts of.
Tabanidae, habits of.
Tadorna variegata, sexes and young of.
Tadorna vulpanser.
Tahitians, compression of the nose by the.
Tail, rudimentary, occurrence of, in man; convoluted body in the extremity of the; absence of, in man and the higher apes; variability of, in species of Macacus and in baboons; presence of, in the early progenitors of man; length of, in pheasants; difference of length of the, in the two sexes of birds.
Tait, Lawson, on the effects of natural selection on civilised nations.
Tanager, scarlet, variation in the male.
Tanagra aestiva, age of mature plumage in.
Tanagra rubra, young of.
Tanais, absence of mouth in the males of some species of; relations of the sexes in; dimorphic males of a species of.
Tankerville, Earl, on the battles of wild bulls.
Tanysiptera, races of, determined from adult males.
Tanysiptera sylvia, long tail-feathers of.
Taphroderes distortus, enlarged left mandible of the male.
Tapirs, longitudinal stripes of young.
Tarsi, dilatation of front, in male beetles.
Tarsius.
Tasmania, half-castes killed by the natives of.
Tasmanians, extinction of.
Taste, in the Quadrumana.
Tattooing, universality of.
Taylor, G., on Quiscalus major.
Taylor, Rev. R., on tattooing in New Zealand.
Tea, fondness of monkeys for.
Teal, constancy of.
Tear-sacs, of Ruminants.
Teebay, Mr., on changes of plumage in spangled Hamburg fowls.
Teeth, rudimentary incisor, in Ruminants; posterior molar, in man; wisdom; diversity of; canine, in the early progenitors of man; canine, of male mammals; in man, reduced by correlation; staining of the; front, knocked out or filed by some savages.
Tegetmeier, Mr., on the transmission of colours in pigeons by one sex alone; numerical proportion of male and female births in dogs; on the abundance of male pigeons; on the wattles of game-cocks; on the courtship of fowls; on the loves of pigeons; on dyed pigeons; blue dragon pigeons.
Tembeta, S. American ornament.
Temper, in dogs and horses, inherited.
Tench, proportions of the sexes in the; brightness of male, during breeding season.