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Rh ; but the weight of the cupola was diminished by the levity of its substance, which consists either of pumice-stone that floats in the water or of bricks from the isle of Rhodes five times less ponderous than the ordinary sort. The whole frame of the edifice was constructed of brick; but those base materials were concealed by a crust of marble; and the inside of St. Sophia, the cupola, the two larger and the six smaller semi-domes, the walls, the hundred columns, and the pavement, delight even the eyes of Barbarians with a rich and variegated picture. A poet, who beheld the primitive lustre of St. Sophia, enumerates the colours, the shades, and the spots of ten or twelve marbles, jaspers, and porphyries, which nature had profusely diversified, and which were blended and contrasted as it were by a skilful painter. The triumph of Christ was adorned with the last spoils of Paganism, but the greater part of these costly stones was extracted from the quarries of Asia Minor, the isles and continent of Greece, Egypt, Africa, and Gaul. Eight columns of porphyry, which Aurelian had placed in the temple of the sun, were offered by the piety of a Roman matron; eight others of green marble were presented by the ambitious zeal of the magistrates of Ephesus: both are admirable by their size and beauty, but every order of architecture disclaims their fantastic capitals. A variety of ornaments and figures was curiously expressed in mosaic; and the images of Christ, of the Virgin, of saints, and of angels, which have been defaced by Turkish fanaticism, were dangerously exposed to the superstition of the Greeks. According to the sanctity of each object, the precious metals were distributed in thin leaves or in solid masses. The balustrade of the choir, the capitals of the pillars, the ornaments of the doors and galleries, were of gilt bronze; the spectator was dazzled by the glittering aspect of the cupola; the sanctuary contained forty thousand pounds weight of silver; and the holy vases and vestments of the altar were of the purest gold, enriched with inestimable gems. Before the structure of the church had risen two cubits above the ground, forty-five thousand two