Journal of the Society for Psychical Research

Vol. 14, London 1909.

Proceedings of the Society for Psychical Research

Vol. 23, London 1909.

Proceedings of the American Society for Psychical Research

Vol. 3, 1909.

Proceedings of the Society for Psychical Research

Vol. 24, London 1910.

Joseph Grasset

The marvels beyond science

Funk & Wagnalls, London 1910.

Journal of the Society for Psychical Research

Vol. 15, London 1911.

Proceedings of the Society for Psychical Research

Vol. 25, London 1911.

Proceedings of the American Society for Psychical Research

Vol. 5, 1911.