Nature's Secrets or Psychometric Researches

Exploring the intricate field of Psychometrics, this vintage treatise delves into psychological measurement while addressing mesmerism, telepathy, and spiritualism. Key topics include how objects are perceived psychometrically, the influence of darkness on perception, and the intriguing concept of hearing sounds from the past. This work is particularly appealing to enthusiasts of psychometrics and the paranormal, making it a valuable addition to related literary collections. The modern edition preserves the original text and artwork, catering to collectors and scholars alike.