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Black Magic, White Magic & the Theory of Magic
The Opus Majus of Roger Bacon
- First published1928
- TraditionBlack & White Magic
- Shelf83 books
The standard English translation of the great work that Roger Bacon sent to Pope Clement IV in 1267. Its parts on languages, mathematics, optics, experimental science and moral philosophy include Bacon's distinction between legitimate astrology and the condemned arts of magicians.













