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Rh bell; but it never occurs to them to ask how it came to be ringable:—how that tintinnabulate roof differs from the dome of the Pantheon, expands into the dome of Florence, or declines into the whispering gallery of St. Paul's.

23. When you have had full satisfaction of the tintinnabulate roof, you are led by the sacristan and Murray to Niccola Pisano's pulpit; which, if you have spare time to examine it, you find to have six sides, to be decorated with tablets of sculpture, like the sides of the sarcophagus, and to be sustained on seven pillars, three of which are themselves carried on the backs of as many animals.

All this arrangement had been contrived before Niccola's time, and executed again and again. But behold! between the capitals of the pillars and the sculptured tablets there are interposed five cusped arches, the hollow beneath the pulpit showing dark through their foils. You have seen such cusped arches before, you think?

Yes, gentlemen, you have; but the Pisans had not. And that intermediate layer of the pulpits means—the change, in a word, for all Europe, from the Parthenon to Amiens Cathedral. For