[ 806 ] 
The extent in front, taken between the centers of 
the angular columns, is 98 feet qf inches, equal to 
104 7^7,6; which contain 108 Roman feet of 5)70,3 
parts each. Its depth on the right-hand lide of the 
entrance (2), from the center of the angular column 
to the center of the pilafter, is 41 feet jj inches, = 
44136,4, and contains 45-7 feet of 970 + parts. The 
fliafts of the columns, which are each of one fingle 
hone, meafure 36 feet inches (3), equal to 
35>°53,6 ; which anfwer to 40-p Roman feet of 
970,3 London parts. 
I can find no meafures in this building of equal 
authority with the diameters, the Rafts of the co- 
lumns in the circular range, and thefe meafures in 
the portico. All of which give the meafure of the 
Roman foot greater than 970 fuch parts as the Lon- 
don foot contains 1 000. 
In the reff of the buildings, where the meafures 
do not require a particular explanation, I Rail firfl 
give Defgodetz’s meafures, with their reductions to 
thoufandth parts of the London foot, and then fet 
down the divifors and quotients with two hooks be- 
tween them ; the divifor on the left-hand, expreffing 
(2) By Tome expreffions of Defgodetz, his plans feem to be in- 
verted, as gravings commonly are. I fpeak according to the plan, 
fuppofing the reader to view it in front. 
(3) Defgodetz, p. 19. has figured the fhafts of the pilaftcrs in 
the portico 36 feet 7 £ inches, and in modules 16 mod. 8£ parts; 
which is fomewhat too great for his foot meafure, his module being 
27 Paris inches. But p. 16. he has figured the fhafts of thefe co- 
lumns 16 mod. 8| parts, which is 36 feet inches. And that 
this is no miftake, appears from his meafures of the capitals of 
each. 
a num- 
