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Vol. 17, London 1915.

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Vol. 28, 1915.

Proceedings of the Society for Psychical Research

Vol. 29, London 1916.

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Vol. 18, London 1917.

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Vol. 30, 1918.

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Vol. 19, London 1919.

Proceedings of the Society for Psychical Research

Vol. 31, London 1920.

Carlton

Twenty years of spoof and bluff

Herbert Jenkins ltd., London 1920.

Journal of the Society for Psychical Research

Vol. 20, London 1921.

Proceedings of the Society for Psychical Research

Vol. 32, London 1921.