Page:Vitruvius the Ten Books on Architecture.djvu/157

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Chap. VIII]
CIRCULAR TEMPLES
123

a cella, while others are termed peripteral. Those that are with­out a cella have a raised platform and a flight of steps leading to it, one third of the diameter of the temple. The columns upon the stylobates are constructed of a height equivalent to the diameter taken between the outer edges of the stylobate walls, and of a

  From Durm
TEMPLE AT TIVOLI PLAN OF THE TEMPLE OF VESTA AT ROME

thickness equivalent to one tenth of their height including the capitals and bases. The architrave has the height of one half of the thickness of a column. The frieze and the other parts placed above it are such as I have described in the third[1] book, on the subject of symmetrical proportions.

2. But if such a temple is to be constructed in peripteral form, let two steps and then the stylobate be constructed below. Next, let the cella wall be set up, recessed within the stylobate about one fifth of the breadth thereof, and let a place for folding doors be left in the middle to afford entrance. This cella, excluding its walls and the passage round the outside, should have a diameter equivalent to the height of a column above the stylobate. Let

  1. Codd. quarto.