A form of communication from the dead through mediums; these are believed by many psychical researchers to be among the best evidence of survival after death. The correspondences are established by bringing together the meaningless utterances of two or more mediums working independently of each other, utterances that only become meaningful when combined. Classical cross-correspondence cases are among the most famous researched by the society for psychical research.
The incidents of cross-correspondences began soon after the deaths of Henry Sidgwick (1900), Edmund Gurney (1888), and E H. W. Myers (1901), the leaders of the society’s first generation. They involved several automist-mediums including Helen de G. Verrall, Alice Fleming (Mrs. Holland in the literature), Margaret Verrall, and Winifred Coombe-Tenant (Mrs. Willett in the literature). Alice Johnson, the society’s research officer, seemed to have first posed the hypothesis that Myers might be the agent behind such a scheme when she dis¬ covered fragments in the messages from several mediums that only made sense when considered together.