French investigator of mediums (1865-1924) remembered for his controversial attempts to provide proof of ectoplasm in the form of plaster moulds.
Scientists & Researchers
Seventeenth century clergyman (1636-1680) and member of the Royal Society, one of the first intellectuals to take a scientific interest in paranormal claims.
Edmund Gurney (1847-1888) was a founder member of the Society for Psychical Research, noted for his research on hypnotism, telepathy and apparitions.
Icelandic academic psychologist and psi researcher (b 1931), who has published extensively on topics such as past life memories and survival encounters.
Australian-born psychical researcher, noted both for his strong scepticism of physical (séance) mediums, and for his more sympathetic later work with the mental (clairvoyant) medium Leonora Piper.
The American-Hungarian stage magician Harry Houdini (1874-1926) was hostile to spiritualism, and wrote books about his debunking of mediums.
American psychologist, amateur magician and leading critic of parapsychology, co-founder of the Committee for the Scientific Inquiry (CSI).
James Hervey Hyslop (1854-1920) was a professor of philosophy, a psychologist, and, during the last fifteen years of his life, a dedicated psychical researcher.
Robert Jahn was a plasma physicist who made notable contributions to the science of rocket propulsion and founded the PEAR anomalies research laboratory, specializing in the study of mind-machine interaction.
The American philosopher and psychologist William James (1842-1910) is one of the most eminent academic figures to have been involved in psi research.