Aristotle tells us. But it was not till after 350 B.C. or some
approximate date, that dwelling-houses were actually arranged and
grouped on a definite system.[21]

[21] Soluntum, near Palermo, on the north coast of Sicily, was
found by Cavallari in 1875 to exhibit a rectangular street-plan;
one main street ran north and south along level ground and
several lesser streets lay at right angles to it mounting a
hillside by means of steps (as at Priene, p. 42). See the
_Bullettino delta Commissione di Antichità e Belle Arti in
Sicilia_, viii. Palermo, August 1875. Cavallari himself assigned
this plan to the date when Soluntum was founded--which is
unfortunately uncertain--but only on the general ground that 'in
una città, una volta tracciate le strade e disposte le arterie
dicommunicazione, non è facile cambiarne la disposizione
generale'. I attach less weight than he does to this reason.
Soluntum was in the main and by origin a Phoenician town, with a
Greek colouring; in 307 B.C. it was refounded for the discharged
soldiers of Agathocles; later still, in Roman times, it had the
rank of 'municipium'; most of its ruins are generally considered
to be of Roman date and small objects found in it are also mostly
Roman, and its street-plan may also be Roman. As the 'Bullettino'
is somewhat rare, I add a reduced plan (fig. 5).

[Illustration: FIG. 5. SOLUNTUM]

It was probably, however, in the first half of the fourth century that
the Greek cities began to pass by-laws relating to the police, the
scavenging and the general public order of their markets and streets,
and to establish Agoranomi to control the markets and Astynomi to