This is the ground breaking, scientific work by Dr. J.B. Rhine Ph.D. from Duke University. Dr. Rhine's experiments involving telepathy clairvoyance and precognition used specially designed cards, called Zener cards. Using exact calculations, it is possible to determine how "improbable" it would be to guess an excess number of cards correctly. Within 10 years, 33 experiments had been performed, involving almost one million trials, with protocols which rigorously excluded possible sensory clues Twenty seven of the 33 studies produced statistically significant results; an exceptional record Furthermore, positive results were not restricted to Rhine's lab. In the years following Rhine's first publication, 33 independent replication experiments were conducted at different laboratories. Twenty of these were statistically significant.