Principles of Geology: Being an Inquiry how for the Former Changes of the Earth's Surface are Referrable to Causes Now in Operation, Volum 2John Murray, 1835 |
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Side 23
... valley . The course of currents on the British shores is ascertained to be as tortuous as that of ordinary rivers . Sometimes they run between sand - banks , which consist of matter thrown down at certain points where the velocity of ...
... valley . The course of currents on the British shores is ascertained to be as tortuous as that of ordinary rivers . Sometimes they run between sand - banks , which consist of matter thrown down at certain points where the velocity of ...
Side 39
... valleys hollowed out by water , where no streams now flow , is no more than we should expect ; these and similar phenomena are the neces- sary consequences of physical causes now in operation ; and , if there be no instability in the ...
... valleys hollowed out by water , where no streams now flow , is no more than we should expect ; these and similar phenomena are the neces- sary consequences of physical causes now in operation ; and , if there be no instability in the ...
Side 40
... valleys , and of tides and currents in many tracts of the sea , should now be spent , it is by no means so easy to explain why the violence of the earthquake and the fire of the volcano should also have become locally extinct , at ...
... valleys , and of tides and currents in many tracts of the sea , should now be spent , it is by no means so easy to explain why the violence of the earthquake and the fire of the volcano should also have become locally extinct , at ...
Side 44
... valleys a thousand feet wide to the depth of six hundred feet , forming bar- riers whereby rivers were dammed up , and lakes occa- sioned . In these currents and lakes of liquid mud or moya thousands of small fish are sometimes ...
... valleys a thousand feet wide to the depth of six hundred feet , forming bar- riers whereby rivers were dammed up , and lakes occa- sioned . In these currents and lakes of liquid mud or moya thousands of small fish are sometimes ...
Side 45
... valleys , in a chain of granitic mountains , having been filled up to the depth of many thousand feet , with various ... valley of the Mississippi at New Madrid , for the space of three hundred miles in length . As this happened exactly ...
... valleys , in a chain of granitic mountains , having been filled up to the depth of many thousand feet , with various ... valley of the Mississippi at New Madrid , for the space of three hundred miles in length . As this happened exactly ...
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Principles of Geology: Being an Inquiry how for the Former Changes ..., Volum 2 Sir Charles Lyell Uten tilgangsbegrensning - 1834 |
Principles of Geology: Being an Inquiry how for the Former Changes ..., Volum 2 Sir Charles Lyell Uten tilgangsbegrensning - 1835 |
Principles of Geology: Being an Attempt to Explain the Former ..., Volum 2 Sir Charles Lyell Uten tilgangsbegrensning - 1835 |
Vanlige uttrykk og setninger
ancient animals appear augite basalt Calabria Campania causes century changes chasms cliffs coast cone considerable continued convulsions crater deep delta depth distance distinct district earth earthquakes ejected elevation eruption estuaries Etna fissures flowed fluid formed geological geologist globe Graham Island ground Gulf habits heat height Herculaneum hill hundred feet hybrid Iceland igneous inhabitants Ischia island isles lakes Lamarck land lapilli lava mass matter Mediterranean melted miles modern Monte Nuovo mountain nature observed ocean organization original period phenomena Phil plain plants Polistena Pompeii produced pumice Puzzuoli quadrupeds quantity races regions rents rise river rocks sand Santorin scoriæ seeds Serapis shells shocks shores Sicily side soil Solfatara species strata stream subsidence subterranean supposed surface temperature thousand feet thrown tides tion town trachyte tract Trans tuff valley vapour vegetable vents Vesuvius violent volcanic volcanic cones waves whole wild
Populære avsnitt
Side 403 - The intermixture of distinct species is guarded against by the aversion of the individuals composing them to sexual union, or by the sterility of the mule offspring. It does not appear that true hybrid races have ever been perpetuated for several generations, even by the assistance of man; for the cases usually cited relate to the crossing of mules with individuals of pure species, and not to the intermixture of hybrid with hybrid. 6thly. From the above considerations, it appears that species have...
Side 372 - ... inches. It was found that the greyhounds could not support the fatigues of a long chase in this attenuated atmosphere, and before they could come up with their prey, they lay down gasping for breath ; but these same animals have produced whelps which have grown up, and are not in the least degree incommoded by the want of density in the air, but run down the hares with as much ease as the fleetest of their race in this country.
Side 272 - 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.
Side 84 - The lava, at a small distance from its source, acquires a darker tint upon its surface, is less easily acted upon, and, as the stream widens, the surface, having lost its state of perfect solution, grows harder and harder, and cracks into innumerable fragments of very porous matter, to which they give the name of scoriae, and the appearance of which has led many to suppose that it proceeded thus from the mountain. There is, however, no truth in this. All lava, at its first exit from its native volcano,...
Side 190 - They described the undulation of the earth as resembling waves, increasing in elevation as they advanced, and when they had attained a -certain fearful height, the earth would burst, and vast volumes of water, and sand, and pit-coal were discharged, as high as the tops of the trees.
Side 69 - ... stature, resembling giants, appeared, sometimes on the mountain, and sometimes in the environs — that stones and smoke were thrown out, the sun was hidden, and then the giants seemed to rise again, while the sounds of trumpets were heard, &c. &c. ; and finally,' he relates, ' two entire cities, Herculaneum and Pompeii, were buried under showers of ashes, while all the people were sitting in the theatre.
Side 420 - The thorny spray is torn off, and fixes itself in his hairy coat, until brushed off again in other thickets and copses. Even on the spot where the victim is devoured many of the seeds which he had swallowed immediately before the chase may be left on the ground uninjured, and ready to spring up in a new soil.
Side 348 - Blumenbach judiciously observes, "that no general rule can be laid down for determining the distinctness of species, as there is no particular class of characters which can serve as a criterion.
Side 77 - The crater was five miles in circumference, and about a thousand paces deep ; its sides were covered with brushwood, and at the bottom there was a plain on which cattle grazed. In the woody parts, wild boars frequently harboured. In one part of the plain, covered with ashes, were three small pools, one filled with hot and bitter water, another salter than the sea, and a third hot, but tasteless.
Side 11 - Calcutta it sometimes occasions an instantaneous rise of five feet ; and both here, and in every other part of its track, the boats, on its approach, immediately quit the shore, and make for safety to the middle of the river. In the channels, between...