THE PARTHENON AND ITS SCULPTURES. 73 compartments, the size of which was not too great for them to be roofed with stone, and as this was a treasury it is probable that it was so covered. Traces in the walls showed that the beams of this part were 3 feet wide, and this is evidence for their having been of marble.* Some writers have supposed that the columns in the opis- thodomos would have been Ionic, but the stone squares on which they rested are of the same size as those of the inner external order, and Penrose is probably right in showing columns of the same diameter also. After long dispute it is now generally agreed that the great cella was lighted only through the open door-way, although an Fig- 59- — The Parthenon in its present shape. elaborate French restoration, only just published, follows the hypaethral heresy and allows the ivory statue to stand in the open air. As long ago as Chandler the view to which Dorp- feld has returned was expressed, and Wilkins in his " Pro- lusiones," writes : " Where is the authority for assuming the Parthenon to have been hypaethral ? No such authority exists, and the speculations of Stuart originated in error. . . . No provision was made, or contemplated, for the admission of light otherwise than by the doorway and by artificial light." The construction of the marble work is not only of mar-
- Penrose, p. 14, Plate V.
