Climacteris erythrops, sexes of.
Climate, cool, favourable to human progress; power of supporting extremes of, by man; want of connexion of, with colour; direct action of, on colours of birds.
Cloaca, existence of a, in the early progenitors of man.
Cloacal passage existing in the human embryo.
Clubs, used as weapons before dispersion of mankind.
Clucking of fowls.
Clythra 4-punctata, stridulation of.
Coan, Mr., Sandwich-islanders.
Cobbe, Miss, on morality in hypothetical bee-community.
Cobra, ingenuity of a.