The Celestial Telegraph; or, Secrets of the Life to Come, Revealed Through Magnetism; Wherein the Existence, the Form, and the Occupations, of the Soul After Its Separation From the Body Are Proved :

... by the means of eight ecstatic somnambulists, who had eighty perceptions of thirty-six deceased persons of various conditions: a description of them, their conversation, etc., with proofs of their existence in the spiritual world. By L. Alph. Cahagnet.