Buch 
A treatise of the 5 orders of columns in architecture, viz. toscan... wherein the proportions and characters of the members of their several pedestals,... are distinctly consider'd,... engraven on 6 folio pl. ... adorn'd with 24 borders,... and a like number of tail-pieces by John Sturt / written in French by Claude Perrault... ; made English by John James of Greenwich
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Part I. five Kinds of Columns,

Projectures to appear Lesser or greater than they are, they fay *tisnecessary to remedy this Inconveniency, by augmenting, or dimi-nishing the Projectures : and they would persuade us, that the Di-versity of these, which is found in the Works of the Antique , is tobe attributed to .this Reason. But us evident, the Ancients had nosuch Intention, since in Structures, where the Projectures ought tohave been greater, on account of the Aspect, whose Distance, ac-cording to the reasoning of the Moderns , should demand a large Pro-jecture z we find that on the contrary, the Ancients have made it verysmall, as appears by the Pantheon, where the Projecture is less in theCornice of the Portico, than in that of the Inside of the Temple,where the View is, without comparison, much less. It is also ma-nifest, that the Projectures have not been changd, on account ofthe Size of the Module, that regulates the Dimensions of the Build-ing, because we find the Projecture is equal to the Height, or eventhat it is less in the greatest Structures, as is evident in the Templeof Peace, the Columns of Canipo Vaccino, and those of the Baths of:Diocletian , which are Antique Buildings, that have the greatest Mo-dule: for in these great Orders, the Projecture of the Cornices isless than in the little ones; such as the Temple of Vefla, at TtVoli.And what makes it plain, that all this Diversity has no other Found-ation than Accident, is, that there are also, small Buildings wherethe Projecture is less than in the great ones, as appears in the Altarsof the Pantheon, where the Projecture is less than in the Portico,whose Order is near sour times as big. I shall treat hereafter of theChange of Proportions more fully, in a Chapter by it self.

The following'Table is toHwve the Truth of the Examplesbefore ched.

The

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