Journal of the Society for Psychical Research

Vol. 3, London 1887.

William James

Phantasms of the Living (review)

Science, N. 205, Vol. 9, 7 gennaio 1887, pp. 18-20.

Proceedings of the Society for Psychical Research

Vol. 5, 1888.

Proceedings of the Society for Psychical Research

Vol. 5, 1888.

Niceforo Filatete e Vincenzo Scarpa

Annali dello spiritismo in Italia

Vol. 25.26, Tipografia A. Baglione, Torino 1888.

Journal of the Society for Psychical Research

Vol. 4, London 1889.

Proceedings of the Society for Psychical Research

Vol. 6, London 1889.

Proceedings of the Society for Psychical Research

Vol. 6, London 1889.

Carl Du Prel

The philosophy of mysticism

George Redway, London 1889.

Joseph Jastrow

The psychology of spiritualism

The Popular Science Monthly, N. 46, Vol. XXXIV, London aprile 1889, pp. 721-732.