Easton, Stewart C., 1907- Roger Bacon and his search for a universal science : a reconsideration of the life and work of Roger Bacon in the light of his own stated purposes / Stewart C. Easton - Oxford : Basil Blackwell, 1952 - vii, 255 p. ; 23 cm. Subjects--Personal Names: Bacon, Roger, 1214-1294 Subjects--Topical Terms: Philosophers--Biography--EnglandScientists--Biography--EnglandOccultists--Biography--EnglandEducators--Biography--EnglandScience, Medieval