http://book.klll.cc/ebooks/author/49923.opds?sort_order=downloads 2025-11-16T04:34:40Z Books by Bacon, Roger Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T04:34:40Z https://en.wikipedia.org/wiki/Roger_Bacon See also: en.wikipedia 2025-11-16T04:34:40Z https://book.klll.cc/ebooks/58393.opds The Mirror of Alchimy Roger Bacon