Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 1 - By Alexander Von Humboldt And Aime Bonpland.
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I Saw
With Regret, (And All Scientific Men Have Shared This Feeling) That
Whilst The Number Of Accurate Instruments Was
Daily increasing, we
were still ignorant of the height of many mountains and elevated
plains; of the periodical oscillations of
The aerial ocean; of the
limit of perpetual snow within the polar circle and on the borders
of the torrid zone; of the variable intensity of the magnetic
forces, and of many other phenomena equally important.
Maritime expeditions and circumnavigatory voyages have conferred
just celebrity on the names of the naturalists and astronomers who
have been appointed by various governments to share the dangers of
those undertakings; but though these eminent men have given us
precise notions of the external configuration of countries, of the
natural history of the ocean, and of the productions of islands and
coasts, it must be admitted that maritime expeditions are less
fitted to advance the progress of geology and other parts of
physical science, than travels into the interior of a continent.
The advancement of the natural sciences has been subordinate to
that of geography and nautical astronomy. During a voyage of
several years, the land but seldom presents itself to the
observation of the mariner, and when, after lengthened expectation,
it is descried, he often finds it stripped of its most beautiful
productions. Sometimes, beyond a barren coast, he perceives a ridge
of mountains covered with verdure, but its distance forbids
examination, and the view serves only to excite regret.
Journeys by land are attended with considerable difficulties in the
conveyance of instruments and collections, but these difficulties
are compensated by advantages which it is unnecessary to enumerate.
It is not by sailing along a coast that we can discover the
direction of chains of mountains, and their geological
constitution, the climate of each zone, and its influence on the
forms and habits of organized beings.
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