Tract on the Tincture and Oil of Antimony

The 'opus Majus' of Roger Bacon

Opus Majus, Volumes 1 And 2

Mirror of Alchemy, [SC] Roger Bacon

Mirror of Alchemy, Roger Bacon

Five Manuscripts of Alchemy

Mirror of Alchimy

Friar Bacon His Discovery of the Miracles of Art Nature and Magick

Fratris Rogeri Bacon, Ordinis Minorum, Opus Majus Ad Clementem Quartum, Pontificem Romanum. Ex Ms. Codice Dubliniensi, Cum Aliis Quibusdam Collato, Nunc Primum Editit S. Jebb, M.D.

Root of the World

Mirror of Alchemy and Tract on the Tincture and Oil of Antimony