The Psi Encyclopedia is a new collection of articles and case studies about psi research, the scientific investigation of psychic phenomena. It's a work in progress, being created by the Society for Psychical Research in London. Learn more >

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Reviews the research literature on claimed UFO sightings and alien encounters, including associated claims of paranormal phenomena.
Memories of a life as a member of the opposite sex are often accompanied by behaviours and preferences appropriate to that sex, suggesting that past-life influence may underlie some cases of gender identity conflict. 
Outstanding musical performer (1848-1927) who attributed his gifts to mediumship. In later life he won critical acclaim as an essayist under the pen name Francis Grierson.
Second part of an international list of scientists and intellectuals who contributed to the investigation of psi phenomena (mid-twentieth century), giving brief summaries of their interests and activities. 
An international list of scientists and intellectuals who contributed to the investigation of psi phenomena in the late nineteenth and early twentieth centuries, giving brief summaries of their interests and activities.