Spine, alteration of, to suit the erect attitude of man.
Spirits, fondness of monkeys for.
Spiritual agencies, belief in, almost universal.
Spiza cyanea and ciris.
Spoonbill, Chinese, change of plumage in.
Spots, retained throughout groups of birds; disappearance of, in adult
mammals.
Sprengel, C.K., on the sexuality of plants.
Springboc, horns of the.
Sproat, Mr., on the extinction of savages in Vancouver Island; on the
eradication of facial hair by the natives of Vancouver Island; on the
eradication of the beard by the Indians of Vancouver Island.
Spurs, occurrence of, in female fowls; development of, in various
species of Phasianidae; of Gallinaceous birds; development of, in
female Gallinaceae.
Squilla, different colours of the sexes of a species of.
Squirrels, battles of male; African, sexual differences in the
colouring of; black.
Stag, long hairs of the throat of; horns of the; battles of; horns of
the, with numerous branches; bellowing of the; crest of the.
Stag-beetle, numerical proportion of sexes of; use of jaws; large size
of male; weapons of the male.
Stainton, H.T., on the numerical proportion of the sexes in the smaller
moths; habits of Elachista rufocinerea; on the coloration of moths; on
the rejection of Spilosoma menthastri by turkeys; on the sexes of
Agrotis exclamationis.
800