Arthur Conan Doyle
[Writer, b. 1859, Edinburgh, Scotland, d. 1930, Crowborough, East Sussex, England.]

 ... I followed up the lectures by two exhibitions of psychic pictures and photographs upon a screen. It was certainly an amazing experience for those who imagined that the whole subject was dreamland, and they freely admitted that it staggered them. 
 Alas! How few they are! Four photographic mediums do I know in all Britain, with about twelve physical phenomena mediums and as many really reliable clairvoyants.