Almost constant
explosions are felt in a clayey soil, which is affirmed to be
impregnated with sulphur. Hot sulphureous waters gush out with such
violence that the ground is agitated by very sensible shocks. It is
said that flames have been frequently seen issuing out since the
great earthquake of 1797. These facts are well worthy of being
examined.
4. Petroleum-spring of the Buen Pastor, near Rio Areo. Large masses
of sulphur have been found in clayey soils at Guayuta, as in the
valley of San Bonifacio, and near the junction of the Rio Pao with
the Orinoco.
5. The Hot Waters (Aguas Calientes) south of the Rio Azul, and the
Hollow Ground of Cariaco, which, at the time of the great
earthquake of Cumana, threw up sulphuretted water and viscous
petroleum.
6. Hot waters of the gulf of Cariaco.
7. Petroleum-spring in the same gulf, near Maniquarez. It issues
from mica-slate.
8. Flames issuing from the earth, near Cumana, on the banks of the
Manzanares, and at Mariguitar, on the southern coast of the gulf of
Cariaco, at the time of the great earthquake of 1797.
9. Igneous phenomena of the mountain of Cuchivano, near Cumanacoa.
