Il fachiro Tahra Bey

Luce & Ombra, N. 4, abril 1925, pp. 176-184.

Margery genuine says Conan Doyle; he scores Houdini

Boston Herald, 26 enero 1925.

G.B. Seybold

They Can See with Their Skin

Popular Science Monthly, diciembre 1925, p. 21.