The Opus Majus of Roger Bacon

little hope. We have no knowledge that the work ever reached Pope Clement. In whichever of the many stages between Paris and Rome it may have been detained, it probably did not survive the condemnation which, as we now know from an Assisi document, was passed on Bacon and his works ten years afterwards. (See Add. Notes, p. xxxiii.)

I conclude this preface with cordial acknowledgment of the assiduous and intelligent assistance given me by Mr. Herbert throughout this work.

Denotation of the principal manuscripts used in this work.