NoDictionaries   Text notes for  
... praedam cum cura habuisset: longinquis itineribus percursando quae obtineri...

longinquis itineribus: perhaps abl. of place, "through distant journeys/in long marches," with abl. of gerund, "percursando," equivalent to a part. in agreement w. the subject, "by overrunning/ranging through."