 Billot, and J. P. F. Deleuze and recorded discussing and documenting seances from the 1820s.Of the early French Spiritualist, Alphonse Cahagnet, publisher of spirit messages such as "Arcanes de la vie future devoiles" (1848), is one of its foremost cases.Familiar with the teachings of Swedenborg, and interest evoked by contemporary German clairvoyants, in Paris of his day Cahagnet stood almost alone belonging to no school.