Christianity, [100], [298], [304], [310], [313], [315], [316], [317], [327], [328], [329], [330].
Church, the, as a social institution, [322-28]; educational functions of, [324-25]; political functions of, [324].
Civilization, and acquisitive instinct, [141]; control of instincts in, [20-23], [413-14]; factors in development of, xii, [15-17], [217], [379]. See also Society.
Classification in science, [242], [397-98].
Coefficient of correlation, [202], [406].
Common sense and science, [381-87].
Communication. See Language.
Companionship. See Gregariousness.
Comte, Auguste, [85].
Conduct, cultivation of socially desirable, [105-09]; social standards of, [103-05].