Easton, Stewart Copinger, 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. Includes index. Bibliography: p. 236-244. Subjects--Personal Names: Bacon, Roger, 1214?-1294. Dewey Class. No.: 189 / EAR 1952