Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 3 - By Alexander Von Humboldt And Aime Bonpland.
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Nothing Can
Engage Men To Circumscribe Their Industry Within The Narrow Limits Of
A Small Island When A Neighbouring Continent Offers Them Greater
Advantages.
We perceived at sunset the two points of the Roca de afuera, rising
like towers in the midst of the ocean.
A survey taken with the compass
placed the most easterly of the points or roques at 0 degrees 19
minutes west of the western cape of Orchila. The clouds continued long
accumulated over that island and showed its position from afar. The
influence of a small tract of land in condensing the vapours suspended
at an elevation of 800 toises is a very extraordinary phenomenon,
although familiar to all mariners. From this accumulation of clouds
the position of the lowest island may be recognized at a great
distance.
On the 29th November we still saw very distinctly, at sunrise, the
summit of the Silla of Caracas just rising above the horizon of the
sea. At noon everything denoted a change of weather in the direction
of the north: the atmosphere suddenly cooled to 12.6 degrees, while
the sea maintained a temperature of 25.6 degrees at its surface. At
the moment of the observation of noon the oscillations of the horizon,
crossed by streaks or black bands of very variable size, produced
changes of refraction from 3 to 4 degrees. The sea became rough in
very calm weather and everything announced a stormy passage between
Cayman Island and Cape St. Antonio. On the 30th the wind veered
suddenly to north-north-east and the surge rose to a considerable
height. Northward a darkish blue tint was observable on the sky, the
rolling of our small vessel was violent and we perceived amidst the
dashing of the waves two seas crossing each other, one the from north
and the other from north-north-east. Waterspouts were formed at the
distance of a mile and were carried rapidly from north-north-east to
north-north-west. Whenever the waterspout drew near us we felt the
wind grow sensibly cooler. Towards evening, owing to the carelessness
of our American cook, our deck took fire; but fortunately it was soon
extinguished. On the morning of the 1st of December the sea slowly
calmed and the breeze became steady from north-east. On the 2nd of
December we descried Cape Beata, in a spot where we had long observed
the clouds gathered together. According to the observations of
Acherner, which I obtained in the night, we were sixty-four miles
distant. During the night there was a very curious optical phenomenon,
which I shall not undertake to account for. At half-past midnight the
wind blew feebly from the east; the thermometer rose to 23.2 degrees,
the whalebone hygrometer was at 57 degrees. I had remained upon the
deck to observe the culmination of some stars. The full-moon was high
in the heavens. Suddenly, in the direction of the moon, 45 degrees
before its passage over the meridian, a great arch was formed tinged
with the prismatic colours, though not of a bright hue.
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