Proceedings of the Society for Psychical Research

Vol. 12, London 1896.

Charles Bertram

Isn't it wonderful? A history of magic and mystery

Swan Sonnenschein & Co. ltd, London 1896.

Charles Vernon Boys

Soap-bubbles, their colours and the forces which mould them

Society for promoting Christian Science, London 1896.

Charles Vernon Boys

Soap-bubbles, their colours and the forces which mould them

Society for promoting Christian Science, London 1916 (I ed. 1896).