Alex Owen. The place of Enchantment: British occultism and the culture of the modern. University of Chicago Press, 2004.
Corinna Treitel. A Science for the Soul: occultism and the genesis of the German Modern. Johns Hopkins University Press, 2004.
David CLARKE, THE ANGEL OF MONS Dubbed by some academics 'unofficial history', the base material of folk stories is neither necessarily true nor necessarily untrue. The narratives tend to dramatize emotions rather than be
forensically picky as to facts
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(From: The Shooter's Journal [No 48, Summer 2004 )