_Modillion_ signifies in _Italian_ a little Model, a little Measure: It's that part which is so often repeated in the _Corinthian_ and _Compound Cornice_, which supports the Projecture of the _Larmier_ or _Drip_. This part is called the little _Model_ in respect of the great Model, which is the Diameter of the Pillar; for as the Proportion of an Edifice depends on the _Diameter_ of the _Pillar_, so the greatness of the Modellians, their number, and their space or distances, must have a just Proportion or true Relation to the whole Fabrick. _Module_ or _Model_ is a measure that is made use of to regulate all the Proportion of the _Fabrick_: In the _Dorick Order_ it's half the _Diameter_ of the Pillar; in other Orders the Module is the whole _Diameter_. _Monoptere_, from [Greek: monos] _solus_, and [Greek: pteron] _ala_; is that which has but one Wing or Isle; it was a sort of a round Temple, whose Roof was supported by Pillars only. _Mutuli_, from [Greek: mytilos], which signifies defect, as being made thinner, and more abated above than below. It's a sort of a Modellion in the Cornice of the _Dorick_ Order. N _Noyan_ is the middle part of the Flooring of the Ancients. They made it with Ciment, which they put betwixt a Lay or Bed of Pibbles, cimented with Mortar made of Lime and Sand. O _Orchestra_, from [Greek: orcheomai] _salto_; signified the place where they danced; it was the lowest place in the Theatre, which was between the _scene_, _viz._ the place where the Players acted, and the Seats where the Spectators sate. It was in this place where the Greek Comedians were wont to dance. _Order_, those Fabricks are said to be of different Orders, when the Proportion which is between the thickness of the _Pillars_ and their height, with all other things which are required to this Proportion, are different. _Ornaments_, _Vitruvius_ so calls the _Architrave_, _Frise_, and _Cornice_. _Oval_, vide _Echinus_. P _Parascenium_, from [Greek: para] and [Greek: skene] _tentonum_, is the back part of the Theatre or Scene. _Periptere_, from [Greek: peri] _circum_, and [Greek: pteron] _ala_, which has a Wing round about. This was a sort of a Temple, which had Pillars on all the four Parts, which was different from the _Prostyle_, which had only Pillars before, or In the _Front_, and from the _Amphiprostyle_, which had only Pillars before and behind, and none on the sides. _Peristyle_, from [Greek: peri] _circum_, and [Greek: stylos] _columna_; signifies that which has Pillars round about: It differs from the _Periptere_ in this, that the Pillars of the _Peristyle_ are within, as it were round about a Court, and those of the _Periptere_ are without, as in the Temples of the Ancients.