i. 239;

on the eradication of facial hair by the natives of Vancouver Island, ii. 348; on the eradication of the beard by the Indians of Vancouver Island, ii. 380.

SPURS, occurrence of, in female fowls, i. 280, 284; development of, in various species of Phasianidae, i. 290; of Gallinaceous birds, ii. 44, 46; development of, in female Gallinaceae, ii. 162.

_Squilla_, different colours of the sexes of a species of, i. 335.

SQUIRRELS, battles of male, ii. 239; African, sexual differences in the colouring of, ii. 286; black, ii. 294.

STAG, long hairs of the throat of, ii. 268; horns of the, i. 279, 282; battles of, ii. 240; horns of the, with numerous branches, ii. 252; bellowing of the, ii. 274; crest of the, ii. 282.

STAG-BEETLE, large size of male, i. 347; weapons of the male, i. 375; numerical proportion of sexes of, i. 313.

STAINTON, H. T., on the numerical proportion of the sexes in the smaller moths, i. 310; habits of _Elachista rufocinerea_, i. 311; on the coloration of moths, i. 397; on the rejection of _Spilosoma menthrasti_, by turkeys, i. 398; on the sexes of _Agrotis exclamationis_, i. 399.

STALLION, mane of the, ii. 268.

STALLIONS, two, attacking a third, i. 75; fighting, ii. 241; small canine teeth of, ii. 258.

STANSBURY, Capt., observations on pelicans, i. 77.

STAPHYLINIDAE, hornlike processes in male, i. 374.

STARFISHES, bright colours of some, i. 322.

STARK, Dr., on the death-rate in towns and rural districts, i. 175; on the influence of marriage on mortality, i. 176; on the higher mortality of males in Scotland, i. 302.

STARLING, American field, pugnacity of male, ii. 51.

STARLING, red-winged, selection of a mate by the female, ii. 116.

STARLINGS, three, frequenting the same nest, i. 269, ii. 106; new mates found by, ii. 105.

STATUES, Greek, Egyptian, Assyrian, &c., contrasted, ii. 350.

STATURE, dependence of, upon local influences, i. 114.

STAUDINGER, Dr., his list of Lepidoptera, i. 312; on breeding Lepidoptera, i. 311.

STAUNTON, Sir G., hatred of indecency a modern virtue, i. 96.

STEALING of bright objects by birds, ii. 112.

STEBBING, T. R., on the nakedness of the human body, ii. 375.

_Stemmatopus_, ii. 278.

_Stenobothrus pratorum_, stridulating organs of, i. 357.

STERILITY, general, of sole daughters, i. 170; when crossed, a distinctive character of species, i. 214.

_Sterna_, seasonal change of plumage in, ii. 228.

STICKLEBACK, polygamous, i. 271; male, courtship of the, ii. 2; male, brilliant colouring of, during the breeding season, ii. 14; nidification of the, ii. 20.

STICKS used as implements and weapons by monkeys, i. 51.

STING in bees, i. 254.

STOKES, Capt., on the habits of the great Bower-bird, ii. 70.

STONECHAT, young of the, ii. 220.

STONE IMPLEMENTS, difficulty of making, i. 138; as traces of extinct tribes, i. 237.

STONES, used by monkeys for breaking hard fruits and as missiles,