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

 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. 
 ... 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.