[ 79 § ] 
From the top of the furbafe within, to the pave- 
ment of the cell, is 7 feet p-g- inches, = 82.7 1,65 > 
which, divided by 8{, gives 5)73,1. 
From the top of the furbafe without, to the outer 
pavement, is p feet i{- inches, = pyy 1,4} which, 
divided by 10, gives p7f,i. 
The fhafts of the columns are 27 feet 5 inches, 
= 2p2op,8 ; which, divided by 30, gives p73, 7. 
The columns, with their bafes and capitals, are 
32 feet o inch, = 34op2,8; which, divided by 3f, 
gives a foot of P74 London parts. 
The mean meafure of the foot from this building, 
is P73,6; which agrees nearly with the foot of Phi- 
lander’s porphyry column above-mentioned, and with 
one derived from Greaves’s meafure of the monument 
of Ceftius, whofe fide within the city (as he fays in 
p. 151 of his works) is completely 78 feet Englifh; 
which, reduced to Graham’s meafure, is 77,84, and 
contains 80 Roman feet of P73 London parts each. 
The temple of Veda, at Tivoli. 
The meafures of the parts of this building difagree 
fo much with each other, by any probable divilors, 
that I fhall only mention the width of the door-way 
between the jambs, which is 7 feet 3! inches, = 
77po,7, and anfwers to 8 Roman feet of p7 3,8 parts 
each* 
The Pantheon. 
This is a circular building, with a portico before 
the entrance; which, having been added after the 
body of the work was finifhed (a), has induced many 
(?.) See Defgocktz, p. 3. & p. 14. 
to 
