88).
[Illustration: FIG.18.

LUCCA.
(The streets which preserve Roman lines are marked in black.)] Whether there were other 'insulae' besides the fifteen is doubtful.

On the east there were certainly none: the two narrow parallel streets at the east end of the area just described are obviously due to a growth of houses along the line of the original east wall.

The other limits are more obscure.

Probably the north and west walls stood a little outside of the Via Galli Tassi (once S.Pellegrino) and the Via S.
Giorgio, but there may well have been a row of insulae, now obliterated, south of the Via del Battistero.