Elements of Geology: Intended for the Use of StudentsG.P. Putnam, 1851 - 334 sidor |
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Sida xiii
... extensive reposito- ries of melted matter , 311 310 Sir H. Davy's hypothesis of metallic bases of alkalies and earths ; electricity , Gradual elevation and de- pression of the surface by expansion and contraction 328 of rocks , 329 ...
... extensive reposito- ries of melted matter , 311 310 Sir H. Davy's hypothesis of metallic bases of alkalies and earths ; electricity , Gradual elevation and de- pression of the surface by expansion and contraction 328 of rocks , 329 ...
Sida 11
... extensively by volcanos . Chlorine is one of the constituents of rock salt ( chlo- ride of sodium ) and is widely diffused in the ocean . Fluorine occurs in fluoride of calcium , ( fluor spar , ) and other minerals . Phosphorus enters ...
... extensively by volcanos . Chlorine is one of the constituents of rock salt ( chlo- ride of sodium ) and is widely diffused in the ocean . Fluorine occurs in fluoride of calcium , ( fluor spar , ) and other minerals . Phosphorus enters ...
Sida 14
... extensive and violent action than we witness at present ; while others claim that existing causes have operated through all periods with the same degree of energy , and when long continued are adequate to the production of all the ...
... extensive and violent action than we witness at present ; while others claim that existing causes have operated through all periods with the same degree of energy , and when long continued are adequate to the production of all the ...
Sida 23
... extensive deposits are made by springs . The waters of many springs are charged with carbonate of lime , which is deposited when the water issues from the rocks . Substances deposited in such water become incrusted with limestone . This ...
... extensive deposits are made by springs . The waters of many springs are charged with carbonate of lime , which is deposited when the water issues from the rocks . Substances deposited in such water become incrusted with limestone . This ...
Sida 38
... extensive tracts of land which have been purposely flooded with it repeatedly , have been raised five or six feet . The ocean also disperses through its vast extent , the saline substances , as common salt and car- bonate of lime ...
... extensive tracts of land which have been purposely flooded with it repeatedly , have been raised five or six feet . The ocean also disperses through its vast extent , the saline substances , as common salt and car- bonate of lime ...
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Elements of Geology: Intended for the Use of Students Samuel St. John Obegränsad förhandsgranskning - 1868 |
Elements of Geology: Intended for the Use of Students Samuel St. John Obegränsad förhandsgranskning - 1851 |
Elements of Geology: Intended for the Use of Students Samuel St. John Obegränsad förhandsgranskning - 1851 |
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abundant agency alluvial alluvium America animals appear augite basaltic beds belong bones calcareous called carbonate of lime carboniferous chalk clay coal coast color consists contain coral crater cretaceous crust crystalline deposits dikes drift earth elevated England Eocene eruption exhibits existing extensive extinct fauna feet thick feldspar fishes fissures formations fossil fossiliferous fragments genera geologists Geology gneiss granite heat hornblende hundred feet Ichthyosaurus igneous rocks inches islands lakes lava Lias lignite limestone living marine marls masses mica mineral mountains occur ocean Old Red Old Red Sandstone Oolite organic remains oxide of iron paleozoic period phenomena plants polyps porphyry portion preserved quadrupeds quartz Red Sandstone reefs reptiles resembling river salt sand secondary shales shells silica Silurian skeletons slate soils sometimes species square miles stone strata stratified rocks structure surface Tertiary thousand feet tion trap rocks trees unstratified valley vegetable veins volcanic Wealden
Populära avsnitt
Sida 294 - These are the generations of the heavens and of the earth when they were created in the day that the LORD God made the earth and the heavens...
Sida 166 - ... now unknown upon the surface of the earth, presented to his senses almost in the beauty and vigour of their primeval life ; their scaly stems, and bending branches, with their delicate apparatus of foliage, are all spread forth before him, little impaired by the lapse of countless ages, and bearing faithful records of extinct systems of vegetation, which began and terminated in times of which these relics are the infallible historians.
Sida 289 - Shall it any longer then be said, that a science, which unfolds such abundant evidence of the Being and Attributes of God, can reasonably be viewed in any other light than as the efficient Auxiliary and Handmaid of Religion ? Some few there still may be, whom timidity or prejudice or want of opportunity allow not to examine its evidence ; who are alarmed by the novelty, or surprised by the extent and magnitude of the views which Geology forces on their attention, and who would rather have kept closed...
Sida 221 - ... the Phlegraean fields of Italy or Sicily which displays in greater perfection the peculiar features of a country desolated by volcanic phenomena. It is true that the cones thrown up around are partially wooded and in general covered with herbage ; but the sides of some are still naked ; and the interior of their broken craters rugged, black, and scorified, as well as the rocky floods of lava with which they have loaded the plain, have a freshness of aspect such as the products of fire alone could...
Sida 165 - The most elaborate imitations of living foliage on the painted ceilings of Italian palaces bear no comparison with the beauteous profusion of extinct vegetable forms with which the galleries of these instructive coal mines are overhung. The roof is covered as with a canopy of gorgeous tapestry, enriched with festoons of most graceful foliage flung in wild irregular profusion over every portion of its surface.
Sida 166 - The effect is heightened by the contrast of the coal-black colour of these vegetables, with the light ground-work of the rock to which they are attached. The spectator feels himself transported, as if by enchantment, into the forests of another world ; he beholds Trees, of forms and characters now unknown upon the surface of the earth, presented to his senses almost in the beauty and vigour of their primeval life...
Sida i - geology, in the magnitude and sublimity of the objects of which it treats, undoubtedly ranks, in the scale of the sciences, next to astronomy...
Sida 36 - ... the quantity of heat discharged over the Atlantic from "the waters of the Gulf Stream in a winter's day would be sufficient to raise the whole column of atmosphere that rests upon France and the British Islands from the freezing point to summer heat.