Is Spiritualism Based on Fraud?

Excerpt: "On March 11 of this year Sir Arthur Conan Doyle did me the honour of debating the claims of Spiritualism with me before a vast and distinguished audience at the Queen''s Hall, London. My book has a serious aim. The pen of even the dullest author—and I trust I do not fall into that low category of delinquents—must grow lively or sarcastic at times in the course of such a study as this. Wh...