This work is quite interesting and refers to various experiences and experiments performed by the author with regards to seances at the time for some years running. The main focal point is none other than the now infamous Anna Fay, was eventually outed as a fraud by Harry Houdini, among others- indeed not that many years after this work sought to use her as evidence of a spirit...
This work is another Edmund Goldsmid release, supposedly translated from a work by "Christianus Pazig." That there appears to be no information on this figure indicates that either Goldsmid himself wrote this work or he translated it from a now-extinct piece of (possibly hand written) literature he collected at some point. It is part of the "Bibliotheca Curiosa" that also contains...