SIEBERT, FRED S., Freedom of the Press in England 1476­1776:  
The Rise and Decline of Government Controls  (Urbana, Ill.: 
University of Illinois Press, 1952).

SIMSON, OTTO GEORG VON, The Gothic Cathedral  (London: 
Routledge and Kegan Paul, 1936).

SISAM, KENNETH, Fourteenth Century Verse and Prose  (Oxford: 
Oxford University Press, 1931).

SMALLEY, BERYL, The Study of the Bible in the Middle Ages  
(Oxford: Oxford University Press, 1932).

SPENGLER, OSWALD, The Decline of the West  (London: Allen 
and Unwin, 1918).