http://book.klll.cc/ebooks/author/4146.opds 2025-08-17T20:54:08Z Books by University of Pennsylvania. Seybert Commission for Investigating Modern Spiritualism (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-17T20:54:08Z https://en.wikipedia.org/wiki/Seybert_Commission See also: en.wikipedia 2025-08-17T20:54:08Z https://book.klll.cc/ebooks/11950.opds Preliminary Report of the Commission Appointed by the University of Pennsylvania to Investigate Modern Spiritualism University of Pennsylvania. Seybert Commission for Investigating Modern Spiritualism