11. Thermal springs of the mountain of the Brigantine, near Nueva
Barcelona. Temperature 43.2 degrees (centigrade).
12. Thermal springs of Provisor, near San Diego, in the province of
New Barcelona.
13. Thermal springs of Onoto, between Turmero and Maracay, in the
valleys of Aragua, west of Caracas.
14. Thermal springs of Mariara, in the same valleys. Temperature
58.9 degrees.
15. Thermal springs of Las Trincheras, between Porto Cabello and
Valencia, issuing from granite like those of Mariara, and forming a
river of warm water (Rio de Aguas Calientes). Temperature 90.4
degrees.
16. Boiling springs of the Sierra Nevada of Merida.
17. Aperture of Mena, on the borders of Lake Maracaybo. It throws
up asphaltum, and is said to emit gaseous emanations, which ignite
spontaneously, and are seen at a great distance.
These are the springs of petroleum and of thermal waters, the
igneous meteors, and the ejections of muddy substances attended
with explosions, of which I acquired a knowledge in the vast
provinces of Venezuela, whilst travelling over a space of two
hundred leagues from east to west. These various phenomena have
occasioned great excitement among the inhabitants since the
catastrophes of 1797 and 1812: yet they present nothing which
constitutes a volcano, in the sense hitherto attributed to that
word.
