“Let us analyze the above letter, and try to discover what the writer thinks, or rather what he does not think of this new force. One thing is certain, at least: Professor Thury, a distinguished physicist and naturalist, admits, and even scientifically proves that various manifestations take place.
Like Mr. Crookes, he does not believe that they are produced by the interference of spirits or disembodied men who have lived and died on earth; for he says in his letter that nothing has demonstrated this theory.
He certainly believes no more in the Catholic devils or demons, for de Mirville, who quotes this letter as a triumphant proof against de Gasparin’s naturalistic theory, once arrived at the above sentence, hastens to emphasize it by a foot-note, which runs thus:
“At Valleyres- perhaps, but everywhere else!” showing him anxious to convey the idea that the professor only meant the manifestations of Valleyres, when denying their being produced by demons.”
H. P. Blavatsky