that for four hundred and
forty-one years after the foundation of the city the Romans contented
themselves with such water as they could get from the Tiber, from
wells, and from natural springs, and adds that some of the springs
were in his day still held in honour on account of their health-giving
qualities.[66] Cicero describes Rome, in his idealising way, as "locum
fontibus abundantem," and twenty-three springs are known to have
existed; but as early 312 B.C. it was found necessary to seek
elsewhere for a purer and more regular supply. More than six miles
from Rome, on the via Collatina, springs were found and utilised for
this purpose, which have lately been re-discovered at the bottom of
some stone quarries; and hence the water was brought by underground
pipes along the line of the same road to the city, and through it to
the foot of the Aventine, the plebeian quarter. This was the Aqua
Appia, named after the famous censor Appius Claudius Caecus, whom
Mommsen has shown to have been a friend of the people.[67] Forty years
later another censor, Manius Curius Dentatus, brought a second supply,
also by an underground channel, from the river Anio near Tibur
(Tivoli), the water of which, never of the first quality, was used for
the irrigation of gardens and the flushing of drains. In 144 B.C.
it was found that these two old aqueducts were out of repair and
insufficient, and this time a praetor, Q. Marcius Rex (probably
through the influence of a family clique), was commissioned to set
them in order and to procure a fresh supply. He went much farther than
his predecessors had gone for springs, and drew a volume of excellent
and clear cold water from the Sabine hills beyond Tibur, thirty-six
miles from the city, which had the highest reputation at all times;
and for the last six miles of its course it was carried above ground
upon a series of arches.[68] One other aqueduct was added in 125 B.C.
the Aqua Tepula, so called because its water was unusually warm; and
the whole amount of water entering Rome in the last century of the
Republic is estimated at more than 700,000 cubic metres per diem,
which would amply suffice for a population of half a million. At the
present day Rome, with a population of 450,000, receives from all
sources only 379,000.[69] Baths, both public and private, were already
beginning to come into fashion; of these more will be said later
on. The water for drinking was collected in large _castella_, or
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