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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The oldest parapsychological organization in the United States, founded in 1884, now practically defunct. 

French astronomer and psychical researcher (1842-1925), notable for his writings on mediumship and psychic phenomena, including case collections. 

Leading parapsychology journal founded by JB Rhine's group at Duke University, covering mainly experimental reports but also including research of spontaneous psychic cases, historical papers, critiques and literature reviews.  

The American-Hungarian stage magician Harry Houdini (1874-1926) was hostile to spiritualism, and wrote books about his debunking of mediums. 

Eminent British psychologist (1871-1938) who during appointments at American universities contributed largely to the establishing of parapsychology as an experimental science.