Roger Bacon
60 books • 8 series
Books on Alchemy
British Society of Franciscan Studies
Cambridge Library Collection - Physical Sciences
Cambridge Library Collection - Rolls
Mediaeval Sources in Translation
Book #47: The Art and Science of Logic
Book #54: On Signs (Opus Maius, Part 3, Chapter 2)
Medieval & Renaissance Philosophy S.
The R.A.M.S. Library of Alchemy
Book #32: Four Works of Roger Bacon
Studien und Texte zur Geistesgeschichte des Mittelalters
Book #20: Compendium of the Study of Theology