Full text: Vitruvius: The architecture of Marcus Vitruvius Pollio, in ten books

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
	        
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