.Of PIERS

Distance, as the Modillions in the lonick Corniceover Pilasters ; therefore the Distances of Corin-thian Columns, must be the fame, as of lonickPilasters. And as the Distance of the centralLines of Corinthian Modillions, in a Cornice o-ver undiminished Pilasters, is also stiewn in Pro-blem XV of the Corinthian Order, to be 40Minutes ; therefore it follows That to have 2Modillions between, the Distance must be twoDiameters ; to have three Modillions between,two Diameters, 40 Minutes; to have four Mo-dillions' between, three Diameters, twenty Mi-nutes, Cfr.

V. The Distance of Composite Modillions in aCornice over Columns, is the fame as in the Io-nick Order ; therefore the Distance of CompositeColumns and Pilasters are the fame, as of lonickColumns and Pilasters.

The Manner of proportioning the several Or-ders, and determining the proper Distances theyare to be placed at, being thus explained ; I shallnow proceed to give such Explanation of the fol-lowing Plates, as will render the Business of eve-ry Design easy and delightful to every one, whohas made himself a Master of the Precedent Or-ders.

Plate XVI, XVII, XVIII, XIX, XX.

Os PIERS for GATES.

To make these, and all other Designs contain-ed in this Work, easy to the Understanding ofall Capacities, and to enable such, to work them,of any Magnitude required ; I have to every De-sign affixed Scales of Aliquot Parts, ('which ne-ver was done before by any Master) whereby,having only, the Height of any Work to be made(which in all Cafes must be) given ; the Wholemay be performed with the utmost Exactness asrequired.

As for Example-, Let it be required to propor-tion the Pier G, Plate XVI. to any given Height.

Divide the given Height (suppose ten Feet)into four equal Parts, (as signified by the Scaleon its Left Side) give two thirds of the lowest 1Part to the Height of the Subplinth G ; and two

for GATES.

thirds of the other third Part, to the Height ofthe Plinth, Torus and Fillet. Divide the upperfourth Part, in 3 Parts ; and the upper 1 Partthereof in 3 Parts ; of which, give tire upper2 Parts to the Height of the Capital; whoseMembers are above describ’d at large by Fig. B.By the dotted Arch of a Quadrant in the Sub-plinth; G, it is evident, that the Breadth of themiddle projecting Part of the Pier ; is equal tothe Height of the Subplinth, which Breadth di-vide in 4 ; and give 1 to the Projection of eachSide.

The Height of the Subplinth of the Pine Ap-ple on the Capital, is one Part, and one third,as signified by the dotted Semicircle : And theHeight of the Pine Apple and its Pedestal, is de-termined by the Intersection of Arches describedon the extream Points of the Capital’s Projec-tion, and which being divided in 3 Parts ; andthe lower 1 in 3, fife. give to every particularMember, its respective Height, as exhibited.The Projection of the Plinth to the Pedestal ofthe Pine Apple, is two thirds of the Projectionof the Middle Part of the Pier.

Now the young Student is to observe, that asthe constituent Parts of all the Designs in thisWork, are adjusted in the very striae Manner ;as those of the above Example ; which it is ma-nifest are no sooner seen, but understood ; it istherefore evident ; that to fay any Thing furtherrelating thereto, is needless.

Theie five Plates contain eighteen Designs ofPiers for Gates at Enterances into Gardens, Ave-nues, Courts, Palaces, &c. which may be builteither of Stone or Brick, or of both, intermix’d,at the Pleasure of those for whom they may beerected.

Plate XXI, XXII, XXIII, XXIV, XXV.

GATES for Enterances into Palaces, &c.

Five Designs for Gates, of which the first,second, third, and fourth, are according to theTuscan, Dorick , lonick and Corinthian Orders ;whose respective Imposts and Architraves oftheir Arches are described at large, and propor-tioned by Aliquot Parts, at the Bottom of eachDesign ; as likewise is, the Impost and Archi-trave to the Gate Plate XXV. made for an Ente-rance to the House of a private Gentleman, &c.

Plate