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.

Margery genuine says Conan Doyle; he scores Houdini

Boston Herald, 26 january 1925.

G.B. Seybold

They Can See with Their Skin

Popular Science Monthly, december 1925, p. 21.

Proceedings of the Society for Psychical Research

Vol. 35, London 1926.

Proceedings of the Society for Psychical Research

Vol. 35, London 1926.