The _Greeks_ in their great Buildings never put any _Dentels_ under the _Modillons_, because the _Rafters_ could not be under the _Forces_, or _Sheers_, and it is a great fault that That, which according to the true Rules of Building ought to be placed above, should be placed under in the Representation. For this Reason, the Ancients never approved of _Modillons_ in the _Piedements_, nor of _Dentels_, but only simple _Cornices_; for neither the _Forces_, _Sheers_, nor the _Rafters_ can be represented in the _Piedements_, out of which they cannot jet but only directly out of the Eaves of the House upon which they lie sloping. The _Acroteres_ are three _Pedestals_, which are upon the Corners and Middle of the _Piedement_ to support Statues; those of the Corner ought to be as high as the Middle of the _Tympan_; but the _Acrotere_ in the middle ought to be higher by an 8th part than the other. All the Members or Parts which shall be placed upon the Capitals of Pillars, _viz. Architraves_, _Frises_, _Cornices_, _Tympans_, and _Acroteres_, should encline forward the 12th part of their height. There is likewise another General Rule; which is, that all the parts that jet out, should have their Projecture equal to their Height. ART. V. _Of the_ Thuscan _Order._ It hath been said that all Buildings have three Parts, which may be different according to the divers Order, _viz._ The _Pillars_, the _Piedements_, and the _Chambranles_, or _Door-Cases_; and that the _Pillars_ had three Parts, which are the _Pedestal_, the _Shaft_, and its Ornaments, _viz._ The _Architrave_, the _Frise_ and the _Cornice_. Neither the Proportion of the _Pedestals_, nor of the _Gates_ and _Chambranles_ of the _Thuscan Order_ are to be found in _Vitruvius_. [Sidenote: _Lib. 4. Chap. 7._] The Proportion of the Pillar is this, that its thickness below is the 7th part of its height, it's Diminution is the 4th part of the Diameter of the Pillar, its _Base_ has half of the Diameter of the Pillar for its height, the _Plinthus_ being round, makes one half of the _Base_; the other half is for the _Thorus_, and for the _Conge_ or _Apophygis_, Vid. _Conge_ explained. The height of the Capital is half the Diameter of the Pillar, the breadth of the _Abacus_ is equal to the whole Diameter of the Pillar at the bottom, the height of the Capital is divided into three Parts; one of them is allowed the _Plinthus_, which serves instead of an _Abacus_; the _Echine_ hath another; and a third Part is for the _Gorge_ of the Capital comprehending the _Astragal_, the _Conge_, or _Apophygis_, which are immediately under the _Echine_. Upon the Pillars must be laid the _Sabliers_, or _Wooden Architrave_, joyned together by _Tenons_, in the form of a Swallows Tail. These _Sabliers_ ought to be distant one from another about an Inch; for if they should touch one another, the Timber would heat and corrupt.