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.
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