Page:Charles Moore--Development and Character of Gothic Architecture.djvu/14

x system of the Cathedral of Noyon—Buttress system of Noyon—Structural progress exhibited in the Cathedral of Paris—Vaulting systems of the choir and nave of Paris Vaulting systems of Mantes, Laon, Bourges, Sens, and Dijon—Local differences of constructive detail, and mutual influences of various provinces—Developments of the thirteenth century—Modifications of the lower pier consequent upon new adjustments of the abacus to its load—Vaulting systems of the advanced Gothic—Structural reason of the twisted surfaces of Gothic vaulting—Vaulting systems of Chartres, Reims, Amiens, and St. Denis—Buttress systems of St. Martin at Laon, St. Leu d'Esserent, Noyon, Soissons, Chartres, Amiens, and Reims—Evolution of the pinnacle—Modes of enclosure—Development of the clerestory opening in the Cathedral of Paris—Development of tracery—Screening of the triforium in French churches—Development of the Gothic apse—Mode of vaulting the apsidal aisles—Chapels of the apse—Characteristics of the French transept—Development of the west façade—Development of the spire—General aspect of the Gothic edifice—General and spontaneous character of the Gothic movement in France

Slowness of Germany to adopt the new principles of building—The Cathedral of Speyer an almost unmodified Romanesque structure—The Cathedral of Bamberg hardly changed in principle—Gothic characteristics in the vaulting