Michaud's Histoire des Croisades; Mailly's L'Esprit des Croisades;
Choiseul; Daillecourt's De l'influence des Croisades; Sur l'Etat
des Peuples en Europe; Heeren's Ueber den Einfluss der Kreuzzuge;
Sporschill's Geschichte der Kreuzzuge; Hallam's Middle Ages;
Mill's History of the Crusades; James's History of the Crusades;
Michelet's History of France (translated); Gibbon's Decline and
Fall; Milman's Latin Christianity; Proctor's History of the
Crusades; Mosheim.