The evidence is cumula- tive and has broken the back of all...

The evidence is cumula- tive and has broken the back of all legitimate and reasonable scepticism." Sir William Crookes (Inventor of the Crookes tube in electric- ity, President of the R.S., of Chemical Society, of The Institute of Electrical Engineering and of the British Association for the Advancement of Science, discoverer of Thallium, etc.).

He began in 1869 a scientific investigation of psychical phenomena which led him to the conclusion "that invisible and intelligent beings exist who say that they are the spirits of dead persons." He made the following statement in his…