First published in 1917, On the Threshold of the Unseen is William Barrett's examination of spiritualism, psychic phenomena, and life after death. Topics covered include, science and scepticism, automatic writing, clairvoyance, telepathy, direct voice, spirit photography, and much more.
Sir William Fletcher Barrett (February 10, 1844 - May 26, 1925) was one of the pioneers of psychical research. It was Barrett's idea to form the Society for Psychical Research (SPR) in London in 1882. However, since Barrett was living in Dublin, Ireland at the time, he was not able to take an active part in managing the Society. He left that up to three Cambridge scholars, Henry Sedgwick, Frederic W. H. Myers, and Edmund Gurney. Barrett also encouraged Professor William James of Harvard to organize the American branch of the SPR in 1884. He edited the SPR Journal from 1884-99 and served as president of the SPR in 1904.