Colymbus glacialis, anomalous young of.
Comb, development of, in fowls.
Combs and wattles in male birds.
Community, preservation of variations useful to the, by natural selection.
Complexion, different in men and women, in an African tribe.
Compositae, gradation of species among the.
Comte, C., on the expression of the ideal of beauty by sculpture.
Conditions of life, action of changed, upon man; influence of, on plumage of birds.
Condor, eyes and comb of the.
Conjugations, origin of.