1. Frari. 2. Apse, St. John and Paul. 3. Frari. 4. Ducal Palace, inner court, upper window. 5. Madonna dell'Orto. 6. St. John and Paul. 7. Casa Bernardo. 8. Casa Contarini Fasan. 9. Casa Cicogna. 10. 11. Frari. 12. Murano Palace (see note, p. 265). PLATE XI. 13. Misericordia. Vol. III. 14. Palace of the younger Foscari.[70] 15. Casa d'Oro; great single windows. 16. Hotel Danieli. 17. Ducal Palace. 18. Casa Erizzo, on Grand Canal. 19. Main story, Casa Cavalli. 20. Younger Foscari. 21. Ducal Palace, traceried windows. 22. Porta della Carta. 23. Casa d'Oro. 24. Casa d'Oro, upper story. 25. Casa Facanon. 26. Casa Cavalli, near Post-Office. It will be seen at a glance that, except in the very early fillet traceries of the Frari and St. John and Paul, Venetian work consists of roll traceries of one general pattern. It will be seen also, that 10 and 11 from the Frari, furnish the first examples of the form afterwards completely developed in 17, the tracery bar of the Ducal Palace; but that this bar differs from them in greater strength and squareness, and in adding a recess between its smaller roll and the cusp. Observe, that this is done for strength chiefly; as, in the contemporary tracery (21) of the upper windows, no such additional thickness is used. Figure 17 is slightly inaccurate. The little curved recesses behind the smaller roll are not equal on each side; that next the cusp is smallest, being about 5/8 of an inch, while that next the cavetto is about 7/8; to such an extent of subtlety did the old builders carry their love of change. The return of the cavetto in 21, 23, and 26, is comparatively rare, and is generally a sign of later date. [Illustration: Fig. II.] [Illustration: Fig. III.]