There has never been an adequate empirical test of Durkheim’s proposition that Catholics have lower suicide rates than Protestants. Thus the empirical foundation for one important application of Durkheim’s assertion that egoism & suicide vary proportionately remains uncertain. Results of a cross-national, longitudinal data study of twelve nations largely refute this proposition. Application of his entire theory of integration (egoism & altruism) do show some consistency. G W.