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Hull, Moses. Encyclopedia of Biblical Spiritualism; Or, A Concordance to the Principal Passages of the Old and New Testament Scriptures Which Prove or Imply Spiritualism; Together with a Brief History of the Origin of Many of the Important Books of the Bible. Chicago: M. Hull, 1895. (ed., reprint version is available)

Bosanquet, Bernard. The Civilization of Christendom, And Other Studies. London: S. Sonnenschein, 1893.