Page [3]

ART of DESIGNING and WORKING
         THE
ORNAMENTAL PARTS of
B (JILDINC&
                      CHAP.      I.
Of the Manner of Proportioning the Five Orders of Columns in
                     by Aliquot Parts.
   I. Of the TUSCAN ORDER.
PR OR. I. ~To proportion the Heights of the princi-
 pal Parts of the Tufcan Order, Fig. I. Plate 1.
           ~RAC9uICE.  Divide ao a given
            Height into ~ equal Parts, the
    Wi lower x Part k a is the Height
            of the Pedeftal.  Divide a k the
                ining 4 Parts into 5 equal
            Parts, the upper i Part ad, is the
Height of the Entablature, and dk, the lower 4,
of the Column.
PRO B~ H. ~Tio proportion the Heiglots of the princi-
   pal Parts of the Tufcan Pedefta4 Fig. LI.
  Divide 'v w a given Height intO 4 Parts, the
                 a
                                               Architeaure
                                       lower i is the Height of the Plinth,
.~- of the
                                       next i, of the Mouldings on the Plinth~
and half
                                       the upper i of the Cornice.
                                       P R 0 B. III.  ~T'o proportion the
Hesghts of the
                                         Members on the Plintb; and of the
Cornice of
                                         the Tufcan PedejIal.
                                         If the Mouldings on the Plinth be
an inverted -
                                       Cima re&a between two Fillets,
divide the Height
                                       in 6, give i to each Fillet, and 4
tO the Cima;
                                       but if the Mouldings are a Caveto
<on a Fillet,
                                       give 4 to the Caveto and 2 to the
Filler.  Di-
                                       vide the Height of the Cornice in
6, give the
                                       upper i to the Regula E, the next
3 to the
                                       Fafcia F, and the remaining. 2 to
a Cima rever{~,
                                       or a Caveto with its Fillet, whofe
Height is half
                                       one Part.
                                                    B2                  PROB.
THE