Opus Majus
Presentations
Roger Bacon (c. 1220-1292): Speculum Alchemicum, Opus, Majus, Secretum, Secretorum. The First Renaissance Man, Inventor, Scientist, Translator, Cipher WritingsSpiritual Classics of the Late Middle Ages
Roger Bacon (c. 1220-1292): Speculum Alchemicum, Opus, Majus, Secretum, Secretorum. The First Renaissance Man, Inventor, Scientist, Translator, Cipher WritingsSpiritual Classics of the Late Middle Ages
