Storied windows : a traveller's introduction to the study of old church glass, from the twelfth century to the Renaissance, especially in France . Early Gothic Lancets enclosed by an tvmpamm bv thk plain circles of the earliestGeometrical Tracery. TRACERY 19 therefore extended throughout the second half ofthe thirteenth century. Geometrical tracery isformed of bars and ribs which are all aboutequidistant from each other. At first only simple circles and other geometricalforms were employed, but in the last quarter ofthe thirteenth century long-lobed pointed trefoilsappear with
Storied windows : a traveller's introduction to the study of old church glass, from the twelfth century to the Renaissance, especially in France . Early Gothic Lancets enclosed by an tvmpamm bv thk plain circles of the earliestGeometrical Tracery. TRACERY 19 therefore extended throughout the second half ofthe thirteenth century. Geometrical tracery isformed of bars and ribs which are all aboutequidistant from each other. At first only simple circles and other geometricalforms were employed, but in the last quarter ofthe thirteenth century long-lobed pointed trefoilsappear with no enclosing circles. This soon led to the complete substitution offlowing lines for geometrical forms in the tracery;and the Curvilinear or Flowing style began earlyin the fourteenth century, and lasted about fiftyyears, ending about 1360. Flowing tracery arosefrom the omission of portions of the enclosingcircle, thus allowing the ribs to run into oneanother, forming lines of double curvature like anelongated S; the juxtaposition of the foliationswithout enclosing circles produced curves of con-traflexure (or twisting back) which resulted in anogee shape, so that the circle shape t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectglasspaintingandstai
