_Pedestal_, is that part which supports the Pillar. _Pied-droit_ is a square Pillar, which is in part within the Wall. _Pillaster_ is the same, with this Difference; that the Pillaster has a _Base_ and a _Capital_, as a _Pillar_ hath, which the _Pied-droit_ has not. _Platt-band_ is a square Member, which terminates the _Architrave_ of the _Dorick Order_, and passes immediately under the Triglyphs. _Plinthus_ signifies a Brick or square Tile. It's in Architecture taken for that square Member which makes the Foundation of the Base of the Pillar. _Posticum_ is the back Gate of a Fabrick. _Portico_ is a long place covered with a Floor or Flatfond, supported by Pillars. _Proscenium_, from [Greek: pro] and [Greek: skenine] _tentorium_; it signifies the forepart of the Scene; it was an Edifice as high as the last Portico of the Theatre, whose Face or Front was adorned with many Ranges of Pillars. _Prostyle_ from [Greek: pro] and [Greek: stylos], signifies that which has Pillars before only. This was one sort of the Temples of the Ancients. _Pseudodiptere_, [Greek: pseudes] _mendax_, [Greek: dis] _bis_, and [Greek: pteron] _ala_; signifies a _false Diptere_. This was a kind of a Temple among the Ancients, which had _Porticoes_ round about, which were every one as large as the double _Portico_ of the _Diptere_. _Pseudoperiptere_, from [Greek: pseudes] _mendax_, and [Greek: peri], and [Greek: pteron] _ala_, was a sort of a Temple, where the Side-Pillars were part in the Wall of the inner side of the Temple, which was enlarged sufficiently to enclose within the space which was allowed the Porticoes of the Periptere. _Pulpit_ was the place upon which the Comedians acted, which we now call the Stage. _Picnostyle_, from [Greek: pyknos] _dentus_, and [Greek: stylos] _columna_; signifies a Building where the Pillars were very close one to another; so that the _Intercolumniation_ had but a _Diameter_ and a half of the Pillar. R _Rudus_ was a sort of gross Mortar, which was made use of for smoothing, and equally filling and levelling the Superfices of the Walls, before the fine Plaister was laid on: It was likewise made use of for the second _Bed_ or _Lay_ of the Flooring. S _Scene_ signifies a Tabernacle, Tent, or Pavillion, from the Greek [Greek: skene]. It was in the Theatre of the Ancients a great _Face_ or Front of Building, adjoyned with Pillars and Statues, which had three great Openings, in which were Pictures in Perspective, which represented the Lodgings where the Tragedians and Comedians dwelt. _Sabliere_ is a piece of Wood as long as a Beam, but not so thick.