112
CHAPTER IV.
OE THE INTERIOR OF THE CELL AND THE ARRANGE¬
MENT OF THE PRONAOS.
THE length of a temple must be twice its width. The
cell itself is to be in length one fourth part more than
the breadth, including the wall in which the doors are
placed. The remaining three parts run forward to the
antæ of the walls of the pronaos, which antæ are to be
of the same thickness as the columns. If the temple be
broader than twenty feet, two columns are interposed
between the two antæ, to separate the pteroma from the
pronaos. The three intercolumniations between the antae
and the columns may be enclosed with fence work, either
of marble or of wood, so, however, that they have doors
in them for access to the pronaos. If the width be greater
than forty feet, columns opposite to those which are be¬
tween the antæe, are placed towards the inner part, of the
same height as those in front, but their thickness is to be
diminished as follows. If those in front are an eighth
part of their height in thickness, these are to be one
ninth ; and if the former are a ninth, or a tenth, the lat-
ter are to be proportionally diminished. For where the
air does not play round them, the diminution thus made
will not be perceived ; lest, however, they should appear
slenderer, when the flutes of the external columns be twen-
ty-four in number, these may have twenty-eight, or even
thirty-two. Thus, what is taken from the absolute mass
of the shaft, will be imperceptibly aided by the number
of the flutes, and though of different thicknesses, they