Abstract
By the late nineteenth century, science was well established in the public mind as the primary method by which useful knowledge of the material universe is obtained. Surely, it was thought, if science can discover cathode rays and radio waves, then it should easily authenticate a phenomenon that is far more widely experienced: the supernatural power of the human mind. Non-physical, “psychic” energy appeared to be everywhere, as an integral part of human experience. Indeed, psychic forces are seemingly built into the cores, the souls, of each of us. It should be just a matter of securing the evidence with the hard cement of scientific procedure. At least this was the view of many Victorian scientists, and so was begun a program to verify psychic phenomena scientifically, a task that has continued without success until the current day. By the time the fourth decade of the twentieth century was underway, the search for psychic energy had stalled. The huge database of anecdotal human testimony proved too unreliable, too easy to explain away as subjective desire, fakery, or delusion. Whenever serious attempts were made to gather objective data under controlled conditions, plausible explanations such as trickery or simple coincidence were readily found--if not by the investigators, then by their critics. Although these plausibilities were not always conclusively proven, they were never conclusively ruled out. And, as long as ordinary explanations for reports of suggested psychic phenomena..