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Books Books 1 - 10 of about 20 editions of On the Threshold of the Unseen1918.

On the Threshold of the Unseen: An Examination of the Phenomena of ...

William Fletcher Barrett - Body, Mind & Spirit - 2011 - 362 pages
First published in 1917, this book attempts to prove that many spiritualist activities should be regarded as scientifically respectable.
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