- The Gold-Mines of Midian and the Ruined Midianite Cities
- Ferdinand Magellan, Circumnavigator
- Sketch of the History of the Knights Templars
- The Flatey Book: Vatican Manuscripts Concerning America As Early As the Tenth Century
- La premire relation de Christophe Colomb (1493): Lettre sur une dition de l'Epistola Christofori Colom appartenant la Bibliothque Royale de Bruxelles