Draper, J. W.: Intellectual Development of Europe, 2 vols., New York, 1876.
Dunning, W. A.: History of Political Theories, New York, 1905.
Edgar, J.: History of Early Scottish Education, Edinburgh, 1893.
Emerton, E.: Introduction to the Study of the Middle Ages, Boston, 1883.
Emerton, E.: Medieval Europe, Boston, 1894.
Fletcher, C. R. L.: Collectanea, First Series. (Oxf. Hist. Soc. Pubs.), vol. V., Oxon., 1885.
Froude, J. A.: History of England from the Fall of Wolsey to the death of Elizabeth, 12 vols., 1856-70.
Furnivall, F. J.: The Babees Book, Lond., 1868.
Gaskoin, C. J. B.: Alcuin, Lond., 1904.
Gasquet, F. A.: The Black Death, 2nd edition, Lond., 1908.