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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These Sand-Winds
Augment The Suffocating Heat Of The Air.
Every grain of quartz, hotter
than the surrounding air, radiates heat in every direction; and it is
difficult to observe the temperature of the atmosphere, owing to these
particles of sand striking against the bulb of the thermometer.
All
around us the plains seemed to ascend to the sky, and the vast and
profound solitude appeared like an ocean covered with sea-weed.
According to the unequal mass of vapours diffused through the
atmosphere, and the variable decrement in the temperature of the
different strata of air, the horizon in some parts was clear and
distinct; in other parts it appeared undulating, sinuous, and as if
striped. The earth there was confounded with the sky. Through the dry
mist and strata of vapour the trunks of palm-trees were seen from
afar, stripped of their foliage and their verdant summits, and looking
like the masts of a ship descried upon the horizon.
There is something awful, as well as sad and gloomy, in the uniform
aspect of these steppes. Everything seems motionless; scarcely does a
small cloud, passing across the zenith, and denoting the approach of
the rainy season, cast its shadow on the earth. I know not whether the
first aspect of the Llanos excite less astonishment than that of the
chain of the Andes. Mountainous countries, whatever may be the
absolute elevation of the highest summits, have an analogous
physiognomy; but we accustom ourselves with difficulty to the view of
the Llanos of Venezuela and Casanare, to that of the Pampas of Buenos
Ayres and of Chaco, which recal to mind incessantly, and during
journeys of twenty or thirty days, the smooth surface of the ocean.
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