Eliphas Levi e Arthur Edward Waite

The history of magic : including a clear and precise exposition of its procedure, its rites and its mysteries

Rider & Son, London 1922.

Journal of the Society for Psychical Research

Vol. 21, London 1923.

Proceedings of the Society for Psychical Research

Vol. 33, London 1923.

Proceedings of the Society for Psychical Research

Vol. 34, London 1924.

Jules Romains

Eyeless Sight: A Study of Extra-Retinal Visoin and the Paroptic Sense

G. P. Putnam's Sons, London 1924.

Journal of the Society for Psychical Research

Vol. 22-23, London 1925.

Harry Leat

Tragic magic: comprising magical sketches, a number of original tricks, forceful articles, and many items of general interest to magicians

Self published, London 1925.

Proceedings of the Society for Psychical Research

Vol. 35, London 1926.

Proceedings of the Society for Psychical Research

Vol. 35, London 1926.

Journal of the Society for Psychical Research

Vol. 24, London 1927.