hideous rock, suspended in the Avernian lake. Its situation strikes the
mind with horror. There still remain the hundred mouths by which the
gods conveyed their oracles; these are now dumb, and there is only one
God who speaks in heaven and on earth. These uninhabited ruins serve as
the resort of birds of unlucky omen. Not far off is that dreadful cavern
which leads, _they say_, to the infernal regions. Who would believe
that, close to the mansions of the dead, Nature should have placed
powerful remedies for the preservation of life? Near Avernus and Acheron
are situated that barren land whence rises continually a salutary
vapour, which is a cure for several diseases, and those hot-springs that
vomit hot and sulphureous cinders. I have seen the baths which Nature
has prepared; but the avarice of physicians has rendered them of
doubtful use. This does not, however, prevent them from being visited by
the invalids of all the neighbouring towns. These hollowed mountains
dazzle us with the lustre of their marble circles, on which are engraved
figures that point out, by the position of their hands, the part of the
body which each fountain is proper to cure.

"I saw the foundations of that admirable reservoir of Nero, which was to
go from Mount Misenus to the Avernian lake, and to enclose all the hot
waters of Baiæ.

"At Pozzuoli I saw the mountain of Falernus, celebrated for its grapes,
whence the famous Falernian wine. I saw likewise those enraged waves of
which Virgil speaks in his Georgics, on which Cæsar put a bridle by the
mole which he raised there, and which Augustus finished. It is now
called the Dead Sea. I am surprised at the prodigious expense the Romans
were at to build houses in the most exposed situations, in order to
shelter them from the severities of the weather; for in the heats of
summer the valleys of the Apennines, the mountains of Viterbo, and the