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Catholic Encyclopedia, art. "Masonry."

Churchward, Signs and Symbols of Primordial Man.

Conder, Hole Craft and Fellowship of Masonry.

Crowe, Things a Freemason Ought to Know.

Cumont, Mysteries of Mithra.

Da Costa, Dionysian Artificers.

De Clifford, Egypt the Cradle of Masonry.

De Quincey, Works, vol. xvi.

Dill, Roman Life.