The experiments upon which this study was based were sponsored by the Department of Psychology at Duke University where for the past few years experiments in psychic research ('parapsychology') have been conducted. The phenomena including telepathy, clairvoyance, apparitions, trance, and others, are considered supernormal and have been defined as lying outside the scope of generally recognized scientific laws. The aim of the experiments at Duke University is to study these phenomena scientifically. Recent work by Professor Rhine and his associates with a simple test consisting of a