Camille Flammarion 
Death And Its Mystery 

Published in 1922, this book searches for proof of the existence of the soul. Lots of personal accounts.
Chapters include:
The Greatest Of Problems – Can It Actually Be Solved?
Materialism – An Erroneous, Incomplete, And Insufficient Doctrine
What Is Man? Does The Soul Exist?
Supra-Normal Faculties Of The Soul
Unknown Or Little Understood
The Will
Acting Without The Spoken Word, Without A Sign, And At A Distance
Telepathy And Psychic Transmissions At A Distance
Vision Without Eyes – The Spirit’s Vision
Exclusive Of Telepathic Transmissions
The Sight Of Future Events
The Present Future
The Already Seen, and Knowledge Of The Future.