The Unknown Guest

We shall find that we have table-turning, with its raps; the movements and transportations of inanimate objects without contact; luminous phenomena; lucidite, or clairvoyance; veridical apparitions or hallucinations; haunted houses; bilocations and so forth; communications with the dead; the divining-rod; the miraculous cures of Lourdes and elsewhere; fluidic asepsis; and lastly the famous thinking animals of Elberfeld and Mannheim. Everybody has heard of table-turning, which may be called the A B C of occult science. It is so common and so easily produced that the Society for Psychical Research has not thought it necessary to devote special attention to the subject.