Telepathy. phenomenology, hypothesis. with gadgets (the)

Telepathy is a phenomenon of which there are examples from the earliest days of human history. It may be spontaneous, or provoked, or experimental. Parapsychology, which is interested in phenomena apparently rebelling against the known laws of space, time and causality, attaches great importance to the study of telepathic phenomena. The volume consists of two parts. The first is devoted to phenomenology; the second offers a discussion of the theoretical basis on which telepathic facts rest. Finally, there follows a chapter on performing practical tests with the help of the Zener charts attached to the volume.