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 circle perforated the base of the dome, which was divided by an equal number of ribs converging from the circumference to its vertex. From the base of the dome the roof was led down by a pair of semi-domes to the east and west walls, and completed on each side by vaulted archings which joined the lateral walls. The nave was separated from the aisles by rows of lofty columns with sculptured capitals, on which rested a series of arches to support the women's galleries. From them lesser pillars, more numerous, reached to the roof; and each corner of the nave proceeded by a semicircular sweep to meet the Royal Door and the apse. On the west a narthex extended all across the church, and above it the galleries became continuous in an area posterior to the nave. The building was flooded with light from windows which in great number passed through the external walls in every direction.

As soon as the containing structure was completed, the decoration and furniture of the interior was pursued with equal zeal. All vacant surfaces in the lower part of the edifice, including the floor, were invested with slabs of marble, showing the greatest diversity of hue and pattern; and the roof was coated with gold mosaic relieved in prominent positions with coloured figures of a sacred type. A cross appeared at the highest point of the dome, and colossal cherubim