by Northcote W. Thomas (Author), Andrew Lang (Author)

1905. The history and practice of crystal gazing, with a discussion of the evidence for telepathic scrying. Contents: Superstition and incredulity; Vision and visions; Crystal visions; Speculum, and the method of using it; Historical; Incantation or "Call"; Egyptian scrying; Prophetic and telepathic scrying; Evidential cases; Experimentation; Bibliography.