Revue Celtique (Paris).
Celtic Review (Edinburgh).
Mittheilungen der Gesellschaft für jüdische Volkskunde (Breslau).
Archivio per lo studio delle tradizioni popolari (Palermo).
International Journal of Ethics (Philadelphia and London).
Hibbert Journal (London).
Works on the Nature of Religion
Plato. Phædo; Phædrus; Republic.
Hume, David. Natural History of Religion (vol. ii of Green and Grose's ed. of Hume's Essays, London, 1882); Dialogues concerning Natural Religion (ibid.).
Kant, Immanuel. Religion innerhalb der Grenzen der blossen Vernunft (Königsberg, 1793; in new ed. of his Works, Berlin, 1912).[588]