Here he points out that eighteenth century mesmerists discovered that, during trance, individuals could exhibit two simultaneous and independent states of consciousness. Many variations of this type of experiment were performed over the coming century. In the late nineteenth and early twentieth centuries, clinicians began reporting instances of what was known as multiple personality disorder. [...]

Here he points out that psychokinesis is something of a taboo within a taboo – as even parapsychologists have been reluctant to research or discuss the phenomenon, particularly when it occurs on a large-scale. He suggests that so-called primitive cultures may have a better understanding of psychokinesis than in modern societies. He also points out [...]

Here he notes that apparitions were studied extensively by the British Society for Psychical Research in the late 19th and early 20th centuries. Basically, there are two categories of apparitions: those of the living and those of the deceased. Thousands of such cases have been reported and researched. The most common of these is known [...]

Here he discusses large-scale psychokinetic phenomena, typically observed during séances in the late 19th and early 20th centuries. These phenomena included table rapping, table levitation, human levitation, apports and materializations. Of particular interest is the case of Daniel Dunglas Home, perhaps the greatest spiritualist medium known in history, who produced such phenomena consistently for a [...]

Here he describes the academic challenges of conducting serious inquiry into paranormal phenomena, a major problem being the emotional resistance from colleagues. He points out that critics of parapsychology often commit the logical error of arguing from the weakest, rather than the strongest, cases. He notes that similar irrational resistance also occurred with regard to [...]