unless Rome was an open town. Prof. Hulsen has kindly communicated this view to me, and I fully agree with it.
As the result of the Gallic invasion, the whole enceinte was enormously
reinforced and strengthened, the original line, however, being for the
most part, if not entirely, retained.
To the construction of this wall the following passages have generally
Liv. vi. 32. I: ut tribute novum fenus contraheretur in murum a
censoribus locatum saxo quadrato faciundum (377 B.C.).
vii. 20. 9: Legionibus Romam reductis relicum anni muris turribusque
reficiendis consumptum （353 B.C.).
It is natural that so great a work as this should have taken a considerable number of years to build.
To this reconstruction belongs all the masonry of larger blocks.
Frank remarks that, though the majority of the blocks measure 58-61 cm.
high, there is a good deal of irregularity even on the outer face, where he
has noted measures as low as 51 cm. and as high as 64, while on the insid