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Principles of Geology: Or, the Modern Changes of the Earth and Its ..., Volumen1
Charles Lyell, Sir
Sin vista previa disponible - 2016
according ages America ancient animals appear become beds called carried causes century changes climate coast common cone consider considerable consist continued course covered currents deep deposits depth direction distance distinct earth earthquakes effects elevation entirely equal eruption example existing extent fact feet flowed force formation former fossil four geological globe gradually greater ground heat height hundred increase inhabitants island Italy known lakes land latitudes lava length less living manner marine mass matter mean miles mountain movements nature nearly observed occur ocean once organic origin period plain plants portion present probably produced quantity recent regard regions remains remarkable rise river rocks sand says seen shells shores side solid sometimes species springs strata stream successive supposed surface temperature theory thousand thrown valley vegetable volcanic whole
Página 493 - Thy waters wasted them while they were free, And many a tyrant since ; their shores obey The stranger, slave, or savage ; their decay Has dried up realms to deserts : — not so thou, Unchangeable save to thy wild waves' play — Time writes no wrinkle on thy azure brow — Such as creation's dawn beheld, thou rollest now.
Página 388 - The seat of Desolation, void of light, Save what the glimmering of these livid flames Casts pale and dreadful?
Página 53 - The ruins of an older world are visible in the present structure of our planet; and the strata which now compose our continents have been once beneath the sea, and were formed out of the waste of pre-existing continents. The same forces are still destroying, by chemical decomposition or mechanical violence, even the hardest rocks, and transporting the materials to the sea, where they are spread out, and form strata analogous to those of more ancient date. Although loosely deposited along the bottom...
Página 207 - Giovanni Romani. Milan, 1828. t Prony, see Cuvier, Disc. Prelim, p. 146. beginning of the fourteenth, describes, in the seventh circle of hell, a rivulet of tears separated from a burning sandy desert by embankments "like those which, between Ghent and Bruges, were raised against the ocean, or those which the Paduans had erected along the Brenta to defend their villas on the melting of the Alpine snows.
Página 55 - ... in the planetary motions, where geometry has carried the eye so far both into the future and the past, we discover no mark either of the commencement or the termination of the present order.
Página 627 - ... and I am told that the wild bee is seldom to be met with at any great distance from the frontier. They have been the heralds of civilization...
Página 191 - ... instruments of decay as well as of reproduction ; but they may also be regarded as antagonist forces. For the aqueous agents are incessantly labouring to reduce the inequalities of the earth's surface to a level ; while the igneous are equally active in restoring the unevenness of the external crust, partly by heaping up new matter in certain localities, and partly by depressing one portion, and forcing out another, of the earth's envelope.
Página 362 - ... clear vivid torrent of lava, in perfect fusion, and totally unconnected with any other matter that was not in a state of complete solution, unattended...
Página 56 - Author of nature has not given laws to the universe, which, like the institutions of men, carry in themselves the elements of their own destruction. He has not permitted in His works any symptom of infancy or of old age, or any sign by which we may estimate either their future or their past duration. He may put an end, as he no doubt gave a beginning, to the present system at some determinate period of time ; but we may rest assured that this great catastrophe will not be brought about by the laws...