The Problems of Psychical Research Experiments and Theories in the Realm of the Supernormal

The Unknown Guest

Studies in the Out-Lying Fields of Psychic Science

Occultism and common-sense

Psychical Miscellanea Being Papers on Psychical Research, Telepathy, Hypnotism, Christian Science, etc.

Ghosts I Have Seen, and Other Psychic Experiences

Adventurings in the Psychical

Les Phénomènes Psychiques Occultes: État Actuel de la Question

The Law of Psychic Phenomena A working hypothesis for the systematic study of hypnotism, spiritism, mental therapeutics, etc.

The secret commonwealth of elves, fauns & fairies

Apollonius