 If the temporal coincidence of the crisis and the distant apparitional experience cannot be explained by any conventional means, then in parapsychology the presumption is made that some as yet unknown form of communication, such as telepathy (a term coined by Myers) has taken place.While it may be said that the work of Gurney and his colleagues failed to provide convincing evidence for either telepathy or survival of death, the large collection of firsthand written accounts which resulted from their methods may nevertheless be regarded as providing a valuable body of data concerning the phenomenology of hallucinations in the sane.A notable later discussion of apparitional experiences was that of G. N. M. Tyrrell, also a leading member of the Society for Psychical Research of his day.