Journal of the American Society for Psychical Research

Vol. 14, 1920.

Proceedings of the American Society for Psychical Research

Vol. 14, 1920.

Guy Lockwood

Mastership or mediumship. Which?

Self published, Kalamazoo 1920.

Journal of the American Society for Psychical Research

Vol. 15, 1921.

Proceedings of the American Society for Psychical Research

Vol. 15, 1921.

Charles Robert Richet

Traité de métapsychique

F. Alcan, Paris 1922.

Jules Romains

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

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

Margery genuine says Conan Doyle; he scores Houdini

Boston Herald, 26 gennaio 1925.

G.B. Seybold

They Can See with Their Skin

Popular Science Monthly, dicembre 1925, p. 21.