Wikipedia
Cross-Correspondences
The cross-correspondences refers to a series of automatic scripts and trance utterances from a group of automatic writers and mediums, involving members of the Society for Psychical Research (SPR). According to psychical researchers the correspondences when put together convey intelligible messages either from spirits of the dead or telepathy.
Skeptics have written the correspondences can be explained by chance or self- delusion and is a case of researchers looking for connections in random or meaningless data.