http://book.klll.cc/ebooks/author/45956.opds 2025-08-22T21:11:12Z Books by Pierre, de Maricourt, active 13th century (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 2025-08-22T21:11:12Z https://en.wikipedia.org/wiki/Petrus_Peregrinus_de_Maricourt See also: en.wikipedia 2025-08-22T21:11:12Z https://book.klll.cc/ebooks/50524.opds The Letter of Petrus Peregrinus on the Magnet, A.D. 1269 active 13th century de Maricourt Pierre