Journal of the American Society for Psychical Research

Vol. 14, 1920.

Proceedings of the American Society for Psychical Research

Vol. 14, 1920.

Proceedings of the Society for Psychical Research

Vol. 31, London 1920.

Journal of the American Society for Psychical Research

Vol. 15, 1921.

Proceedings of the American Society for Psychical Research

Vol. 15, 1921.

Journal of the Society for Psychical Research

Vol. 20, London 1921.

Proceedings of the Society for Psychical Research

Vol. 32, London 1921.