Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation, Volum 2J. Murray, 1835 - 1692 sider |
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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 Inquiry how for the Former Changes ..., 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 depth distance 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 quake quantity races regions rents rise river rocks sand Santorin scoriæ seeds Serapis shells shocks shores Sicily side soil Solfatara Somma 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 270 - 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 thine azure brow — such as Creation's dawn beheld, thou rollest now.
Side 417 - Welcome to their roar! Swift be their guidance, wheresoe'er it lead ! Though the strain'd mast should quiver as a reed. And the rent canvas fluttering strew the gale, Still must I on.; for I am as a weed, Flung from the rock, on Ocean's foam to sail Where'er the surge may sweep, the tempest's breath prevail.
Side 401 - 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.
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 396 - On this difference of ten degrees in the facial angle the superior beauty of the European depends; while that high character of sublime beauty, which is so striking in some works of...
Side 190 - ... to cover a tract of many miles in extent, near the Little Prairie, with water three or four feet deep; and when the water disappeared, a stratum of sand of the same thickness was left in its place.
Side 346 - ... conclusions. 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. In each case we must be guided by analogy and probability.
Side 270 - ... them. But it is time that the geologist should, in some degree, overcome those first and natural impressions which induced the poets of old to select the rock as the emblem of firmness — the sea as the image of inconstancy. Our modern poet, in a more philosophical spirit, saw in the sea
Side 399 - It will be observed, that these curious phenomena disclose, in a highly interesting manner, the unity of plan that runs through the organization of the whole series of vertebrated animals ; but they lend no support whatever to the notion of a gradual transmutation of one species to another ; least of all of the passage, in the course of many generations, from an animal of a more simple to one of a more complex structure
Side 84 - ... whatever, separated from its channel, and exposed to the action of the external air, immediately cracks, becomes porous, and alters its form. As we proceeded downward, this became more and more evident ; and the same lava which at its original source flowed in perfect solution, undivided, and free from encumbrances of any kind, a little farther down had its surface loaded with scoriae in such a manner, that, upon its arrival at the bottom of the mountain, the whole current resembled nothing so...