Project Gutenberg 2024-06-03 Public domain in the USA. 126 Ferriar, John 1761 1815 11006890 An essay towards a theory of apparitions $aLondon :$bCadell and Davies, $c1813. Tim Lindell, Susan E. and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) "An Essay Towards a Theory of Apparitions" by John Ferriar is a scientific publication written in the early 19th century. The work aims to explore the phenomenon of apparitions through a systematic and rational approach, proposing medical and psychological explanations for spectral impressions observed in various historical anecdotes and personal testimonies. The opening of the essay sets the stage for an extensive examination of apparitions, beginning with the assertion that forms of deceased or absent individuals have been witnessed by credible witnesses. Ferriar outlines his plans to dissect the reality of spectral visions by exploring the human sensory system, the influence of physiological states on perceptions, and historical cases of spectral sightings, including credible testimonies from antiquity and more recent sources. He aims to provide clarity on how these apparitions are often misinterpreted, suggesting that many instances can be attributed to illusions and delusions rather than supernatural causes. (This is an automatically generated summary.) https://archive.org/details/essaytowardstheo00fer/page/n5/mode/2up 20230315084309ferriar 1813 GB Reading ease score: 50.1 (10th to 12th grade). Somewhat difficult to read. en Hallucinations and illusions Apparitions BF Text Category: Psychiatry/Psychology 168030 2025-07-29T08:07:53.240300 text/html 142482 2024-06-03T06:38:26 text/html 336180 2025-07-29T08:07:57.597269 application/epub+zip 334028 2025-07-29T08:07:54.358330 application/epub+zip 298627 2025-07-29T08:07:53.780285 application/epub+zip 922443 2025-07-29T08:08:00.091278 application/x-mobipocket-ebook 903839 2025-07-29T08:07:57.196320 application/x-mobipocket-ebook 137178 2025-07-29T08:07:52.854274 text/plain; charset=us-ascii 117208 2024-06-03T06:38:26 text/plain; charset=us-ascii 15576 2025-07-29T08:08:00.237234 application/rdf+xml 14601 2025-07-29T08:07:53.966274 image/jpeg 2018 2025-07-29T08:07:53.873276 image/jpeg 277805 2025-07-29T08:07:53.275298 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia