The story of architecture: an outline of the styles in all countries (1896)
Mathews, Charles Thompson, 1863- · New York, D. Appleton and company · leaf 348
Fig. 12S. … Plate XXXIX.-Section showing construction in the Church of St.-Denis. 326 THE GOTHIC STYLE. thrust was exerted more toward the perpendicular,requiring only the slim elastic flying buttress as aprop, and, by its very shape, affording greater heightthan the round arch, even when springing from…
Architecture -- History
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