Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 2 - By Alexander Von Humboldt And Aime Bonpland.
- Page 9 of 777 - First - Home
At Present,
The Town Of Valencia Is Separated From The Lake By Level Ground Of
More Than Two Thousand Seven
Hundred toises (which Oviedo would no
doubt have estimated as a space of a league and a half); and the
Length of the basin of the lake is to its breadth as 10 to 2.3, or as
7 to 1.6. The appearance of the soil between Valencia and Guigue, the
little hills rising abruptly in the plain east of the Cano de Cambury,
some of which (el Islote and la Isla de la Negra or Caratapona) have
even preserved the name of islands, sufficiently prove that the waters
have retired considerably since the time of Oviedo. With respect to
the change in the general form of the lake, it appears to me
improbable that in the seventeenth century its breadth was nearly the
half of its length. The situation of the granite mountains of Mariara
and of Guigue, the slope of the ground which rises more rapidly
towards the north and south than towards the east and west, are alike
repugnant to this supposition.
In treating the long-discussed question of the diminution of the
waters, I conceive we must distinguish between the different periods
at which the sinking of their level has taken place. Wherever we
examine the valleys of rivers, or the basins of lakes, we see the
ancient shore at great distances. No doubt seems now to be
entertained, that our rivers and lakes have undergone immense
diminutions; but many geological facts remind us also, that these
great changes in the distribution of the waters have preceded all
historical times; and that for many thousand years most lakes have
attained a permanent equilibrium between the produce of the water
flowing in, and that of evaporation and filtration.
Enter page number
PreviousNext
Page 9 of 777
Words from 2140 to 2441
of 211397