Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 2 - By Alexander Von Humboldt And Aime Bonpland.
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The Causes
Of The Insalubrity Of The Atmosphere Must Be Sought In The Shores That
Extend To The East, As Far As The Eye Can Reach, Towards The Punta De
Tucasos, Near The Fine Port Of Chichiribiche.
There are situated the
salt-works; and there, at the beginning of the rainy season, tertian
fevers prevail, and easily degenerate into asthenic fevers.
It is
affirmed that the mestizoes who are employed in the salt-works are
more tawny, and have a yellower skin, when they have suffered several
successive years from those fevers, which are called the malady of the
coast. The poor fishermen, who dwell on this shore, are of opinion
that it is not the inundations of the sea, and the retreat of the
salt-water, which render the lands covered with mangroves so
unhealthful;* (* In the West India Islands all the dreadful maladies
which prevail during the wintry season, have been for a long time
attributed to the south winds. These winds convey the emanations of
the mouths of the Orinoco and of the small rivers of Terra Firma
toward the high latitudes.) they believe that the insalubrity of the
air is owing to the fresh water, that is, to the overflowings of the
Guayguaza and Estevan, the swell of which is so great and sudden in
the months of October and November. The banks of the Rio Estevan have
been less insalubrious since little plantations of maize and plantains
have been established; and, by raising and hardening the ground, the
river has been confined within narrower limits.
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