Upton Sinclair 
Mental Radio 

This fascinating book documents Upton Sinclair’s famous test that he devised in an attempt to authenticate his second wife’s supposed psychic abilities, who, at the time, was suffering from depression and had a keen interest in the occult. The test consisted of her attempts to accurately duplicate two hundred and ninety different pictures that her brother drew in a separate room. According to Sinclair, she was able to accurately duplicate sixty-five of them; one hundred and fifty-five he considered ‘partial successes, and seventy were failures. This text comprises the results of these tests, complete with original drawings, the attempts at duplication, and a wealth of notes and comments. The original German edition of this book was prefaced by Albert Einstein, who was a friend of Sinclair, and admired the book. We are republishing this antiquarian text now in an affordable, modern edition complete with a new prefatory biography of the author.