Mental Radio

In 'Mental Radio', Upton Sinclair details a series of experiments designed to test the telepathic abilities of his wife, Mary Craig Sinclair.

The experiments involved Mary attempting to duplicate drawings made by Upton or other individuals in a separate room.

The book reports remarkable success rates, with Mary accurately duplicating 65 out of 290 pictures and achieving 155 partial successes.

The experiments were conducted over several years and were notable for their attempt to scientifically verify telepathy.

The book includes a preface by Albert Einstein in the German edition, praising Sinclair's writing and the seriousness of his research.

However, the experiments have been criticized for not being conducted in a controlled scientific environment.