136.2 Roger BACON. Opus maius. Primum a Samuele Jebb, M.D. editum MDCCXXXIII. Nunc vero diligenter recusum. Accedit Prologus Galeatus in reliqua opera ejusdem authoris. 4° Venetiis: apud Franciscum Pitteri 1750 Ferguson Nat Union Cat [Illustrations:- 1. Engraving inserted after page 50, 342x231mm. Re-cut from the 1733 edition. 2. Typeset table. 241x340mm. Astronomical table of days, on large inserted folio. Reset from the 1733 edition. 3. Engraving inserted after page 344. 372x232mm. Re-cut from the 1733 edition.]