these surrounding lines, even though the columns are equally thick, will not be equal to each other, because it takes a line of greater length to compass the channels and the flutes. This being granted, it is not improper, in narrow quarters or where the space is enclosed, to use in a building columns of somewhat slender proportions, since we can help out by a duly proportionate number of flutings.
4. The walls of the cella itself should be thick in proportion to its size, provided that their antae are kept of the same thickness as the columns. If the walls are to be of masonry, let the rubble used be as small as possible; but if they are to be of dimension stone or marble, the material ought to be of a very moderate and uniform size; for the laying of the stones so as to break joints will make the whole work stronger, and their bevelled edges, standing up about the builds and beds, will give it an agreeable look, somewhat like that of a picture.
CHAPTER V
HOW THE TEMPLE SHOULD FACE
1. The quarter toward which temples of the immortal gods ought to face is to be determined on the principle that, if there is no reason to hinder and the choice is free, the temple and the statue placed in the cella should face the western quarter of the sky. This will enable those who approach the altar with offerings or sacrifices to face the direction of the sunrise in facing the statue in the temple, and thus those who are undertaking vows look toward the quarter from which the sun comes forth, and likewise the statues themselves appear to be coming forth out of the east to look upon them as they pray and sacrifice.
2. But if the nature of the site is such as to forbid this, then the principle of determining the quarter should be changed, so that the widest possible view of the city may be had from the sanctuaries of the gods. Furthermore, temples that are to be built beside
