• Blue-beard: A Contribution to History and Folk-lore: Being the history of Gilles de Retz of Brittany, France, who was executed at Nantes in 1440 A.D., and who was the original of Blue-beard in the tales of Mother Goose
• The Swastika, the Earliest Known Symbol, and Its Migration: With Observations on the Migration of Certain Industries in Prehistoric Times