He is as inexhaustible as Vesuvius. We shall have to
flee, or stop our ears with wax, like the sailors of Ulysses.

The day came when we had checked off the Posilipo, and the Grotto,
Pozzuoli, Baiae, Cape Misenum, the Museum, Vesuvius, Pompeii,
Herculaneum, the moderns buried at the Campo Santo; and we said, Let
us go and lie in the sun at Sorrento. But first let us settle our
geography.

The Bay of Naples, painted and sung forever, but never adequately,
must consent to be here described as essentially a parallelogram,
with an opening towards the southwest. The northeast side of this,
with Naples in the right-hand corner, looking seaward and
Castellamare in the left-hand corner, at a distance of some fourteen
miles, is a vast rich plain, fringed on the shore with towns, and
covered with white houses and gardens. Out of this rises the
isolated bulk of Vesuvius. This growing mountain is manufactured
exactly like an ant-hill.

The northwest side of the bay, keeping a general westerly direction,
is very uneven, with headlands, deep bays, and outlying islands.
First comes the promontory of Posilipo, pierced by two tunnels,
partly natural and partly Greek and Roman work, above the entrance of
one of which is the tomb of Virgil, let us believe; then a beautiful
bay, the shore of which is incrusted with classic ruins. On this bay
stands Pozzuoli, the ancient Puteoli where St. Paul landed one May
day, and doubtless walked up this paved road, which leads direct to
Rome. At the entrance, near the head of Posilipo, is the volcanic
island of "shining Nisida," to which Brutus retired after the
assassination of Caesar, and where he bade Portia good-by before he
departed for Greece and Philippi: the favorite villa of Cicero, where
he wrote many of his letters to Atticus, looked on it. Baiae,
epitome of the luxury and profligacy, of the splendor and crime of
the most sensual years of the Roman empire, spread there its temples,
palaces, and pleasure-gardens, which crowded the low slopes, and
extended over the water; and yonder is Cape Misenum, which sheltered
the great fleets of Rome.

This region, which is still shaky from fires bubbling under the thin
crust, through which here and there the sulphurous vapor breaks out,
is one of the most sacred in the ancient world. Here are the Lucrine
Lake, the Elysian Fields, the cave of the Cumean Sibyl, and the Lake
Avernus. This entrance to the infernal regions was frozen over the
day I saw