The stones of Venice . of their arch system. It will be noted, in Plate XL, that the form and character of thetracery bars themselves are independent of the position or projection ofthe cusps on their flat sides. In this respect, also, Venetian traceries arepeculiar, the example 22. of the Porta della Carta being the only onein the plate which is subordinated according to the Northern system. Inevery other case the form of the aperture is determined, either by a flatand solid cusp as in 6., or by a pierced cusp as in 4. The effect of thepierced cusp is seen in the uppermost figure, Plate XVIII
The stones of Venice . of their arch system. It will be noted, in Plate XL, that the form and character of thetracery bars themselves are independent of the position or projection ofthe cusps on their flat sides. In this respect, also, Venetian traceries arepeculiar, the example 22. of the Porta della Carta being the only onein the plate which is subordinated according to the Northern system. Inevery other case the form of the aperture is determined, either by a flatand solid cusp as in 6., or by a pierced cusp as in 4. The effect of thepierced cusp is seen in the uppermost figure, Plate XVIII. Vol. II.; andits derivation from the solid cusp will be understood, at once, from the wood-is 4 248 10. FINAL APPENDIX. IV. TRACERIES. cut below, Fig. IV., which represents a series of the flanking stones ofany arch of the fifth order, such as fin Plate III. Vol. I. The first on the left shows the condition of cusp in a perfectly simpleand early Gothic arch, 2. and 3. are those of common arches of the fifth Fig. Fig. V. 12 3 4 5 order, 4. is the condition in more studied examples of the Gothic ad-vanced guard, and 5. connects them all with the system of the common archivolt mouldings on the projecting edge of2. and 3., we obtain the bold and deep fifth order window, used downto the close of the fourteenth century or even later, and always grand in its depth of cusp, and consequently ofshadow; but the narrow cusp 4. occurs alsoin very early work, and is piquant when setbeneath a bold flat archivolt, as in Fig. V.,from the Corte del Forno at Santa pierced cusp gives a peculiar lightnessand brilliancy to the window, but is not sosublime. In the richer buildings the surfaceof the flat and solid cusp is decorated with ashallow trefoil (see Plate VIII. Vol. L), or,when the cusp is small, with a triangular in-cision only, as seen in figs. 7. and 8. Plate recesses on the sides of the other cusps indicate their single ordouble lines of foli
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectarchitecture, bookyea
