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We found it a basilica, its sides divided by square piers, and the whole interior, piers and walls, covered with a damasked pattern wrought in verd antique upon a ground of white marble.

It is of two kinds, the red and the green,—they are, indeed, frequently found intermixed,—the former somewhat resembling porphyry, and the latter verd antique.

The columns of the whole church on the ground floor are of porphyry, and on the upper storey of verd antique.

Those are bits of the precious verd antique.

They are of verd antique and larger than the other columns in this story of the church, and have sunk crosses in them.