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Vefpaftan rebuilt the Capitol after the fecond con- 
flagration, and reftored the antient records from 
copies of them that were got abroad (8), and pro- 
bably the ftandards at the lame time. The congius 
was reftored by weight, according to the Plebilci- 
tum Silianum, as the inscription on it teflifies. The 
quadrantal was too cumberfome a veffel for common 
ul'e, to which the congius (like our gallon) was well 
adapted j fo that 1 do not fee what other purpofe it 
could ferve, but to adjuft the congius to its capacity, 
and the foot to its fide : but here we fee the congius 
adj ufted by weight, and it is not very likely that a 
new quadrantal Ihould be made for no other end but 
to adjuft the foot by, when fo many copies of the 
old ftandard were extant. 
Therefore it is not improbable, that the ftandard 
of the foot was at this time reftored, without any 
regard to its relation to the quadrantal. 
But as to the difference between the foot derived 
from the congius, and that found from other autho- 
rities, I muft farther obferve, that the correct adjuft- 
ment of weights to meafures, is a very difficult mat- 
ter, even in this age, and in this kingdom, where 
workmanlhip is arrived at a high pitch of accuracy. 
And what errors rude workmanlhip is liable to, fuf- 
ficiently appears from the weights Paetus and Villal- 
pandus have given of the congius. Therefore I fee 
no reafon to reject the teftimonies of thofe authors. 
buildings reftored by Adrian, mentions moft of thofe that Xiphilin 
fays were burnt in this fire. JDomitian rebuilt the Capitol. Suet, 
in Domit. c. 5. 
(8) Sueton. in Vefpaf. c. 8. 
whs 
