An Introduction to Geology: Intended to Convey a Practical Knowledge of the Science, and Comprising the Most Important Recent Discoveries, with Explanations of the Facts and Phenomena which Serve to Confirm Or Invalidate Various Geological TheoriesHezekiah Howe, 1833 - 479 páginas |
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Página 3
... mass of matter exerts upon a plummet ( when suspended in its vicinity ) to draw it from a vertical line . This will be proportional to the absolute quantity of matter in that mass compared with that of the earth . By this meth- od , it ...
... mass of matter exerts upon a plummet ( when suspended in its vicinity ) to draw it from a vertical line . This will be proportional to the absolute quantity of matter in that mass compared with that of the earth . By this meth- od , it ...
Página 5
... mass of the ocean . If the average depth of the sea be five miles , and it contain 24 per cent . of salt , were the water entirely evaporated , the saline residue would form a stratum of salt more than five hundred feet in thickness ...
... mass of the ocean . If the average depth of the sea be five miles , and it contain 24 per cent . of salt , were the water entirely evaporated , the saline residue would form a stratum of salt more than five hundred feet in thickness ...
Página 12
... mass ap- pears a compact congeries of mineralised organic remains . Over these vast beds of ancient limestone occur a series of sandstone stra- ta and shale , containing , almost exclusively , remains of terrestrial vegetables ...
... mass ap- pears a compact congeries of mineralised organic remains . Over these vast beds of ancient limestone occur a series of sandstone stra- ta and shale , containing , almost exclusively , remains of terrestrial vegetables ...
Página 22
... mass of a stratumn . This is the more remarkable , as coralline animals are forming extensive calcareous rocks in our present seas . Some gen- era and species of radiated animals which abound in transition rocks , have not left their ...
... mass of a stratumn . This is the more remarkable , as coralline animals are forming extensive calcareous rocks in our present seas . Some gen- era and species of radiated animals which abound in transition rocks , have not left their ...
Página 28
... mass of positive concurrent evidence that cannot be refuted by negative arguments . We are told , that the bed of the sea has not been dredged , to discover what species of animals have existed in former ages . The geologist can have no ...
... mass of positive concurrent evidence that cannot be refuted by negative arguments . We are told , that the bed of the sea has not been dredged , to discover what species of animals have existed in former ages . The geologist can have no ...
Outras edições - Ver tudo
An Introduction to Geology: Intended to Convey a Practical Knowledge of the ... Robert Bakewell Visualização integral - 1833 |
An Introduction to Geology: Intended to Convey a Practical Knowledge of the ... Robert Bakewell Visualização integral - 1833 |
An Introduction to Geology: Intended to Convey a Practical Knowledge of the ... Benjamin Silliman,Robert Bakewell Pré-visualização indisponível - 2018 |
Palavras e frases frequentes
Alps ammonites ancient animals appear basalt bed of coal beds of limestone bones calcareous called carbon caverns chalk Charnwood Forest clay coal coal strata coal-field colour composed conchology contain covered crater crystals deposited depth Derbyshire diluvial discovered districts dyke earth elevation England epoch eruptions existence extend feet felspar fissures formation fossil fragments frequently genera geologists geology globe gneiss granite green sand greywacke gypsum hills hornblende imbedded inhabitants intermixed island lakes land lava lias lime London clay lower magnesian limestone marine marl mass mastodon metallic mica mica-slate miles mineral mountain limestone nearly numerous observed occur ocean oolite organic remains plants Plate porphyry present quadrupeds quartz red marl red sandstone rivers sandstone secondary strata shale shells side situations slate sometimes species stone stratum substances subterranean supposed surface temperature tertiary strata thickness tion toadstone transition limestone transition rocks upper valleys vegetable veins volcanic Wealden
Passagens conhecidas
Página 448 - 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...
Página 438 - And God said, Let the earth bring forth grass, the herb yielding seed, and the fruit tree yielding fruit after his kind, whose seed is in itself, upon the earth : and it was so.
Página 441 - And the Children of Israel were fruitful, and increased abundantly, and multiplied, and waxed exceeding mighty; and the land was filled with them.
Página 438 - ... to give light upon the earth, and to rule over the day, and over the night, to be for signs, and for seasons, and for days, and for years.
Página 177 - Soon after the explosion commenced a number of meteorites fell to the ground over an area a mile and a half in length and half a mile in breadth. The following masses have been collected : — 1.
Página 255 - ... density he was unable to penetrate ; showers of ashes covered the houses, the streets and the fields, to the depth of several inches ; and amid this darkness, explosions were heard at intervals, like the report of artillery or the noise of distant thunder.
Página 228 - ... action, by a reciprocal reaction ; none of these parts can change, without a change of the others also. Thus if the intestines of an animal are organized in a manner only to digest fresh flesh, it is necessary that his jaws should be constructed to devour the prey, his claws to seize and tear it, his teeth to divide the flesh, and the whole system of his organs of motion to follow and overtake it, and of his organs of sense, to perceive it at a distance.
Página 251 - Caracas preceded this explosion thirty-five days, and violent oscillations of the ground were felt both in the islands and on the coasts of Terra Firma.
Página v - A work conspicuous for attractiveness, for perspicuity, for a style generally vigorous and correct— often elegant and beautiful, and for an independence of spirit which carries the author straight forward to his object without any servile regards to previous systems. Mr. Bakewell's work has long been our favourite elementary treatise on Geology."— ATHENAEUM.
Página 249 - Here (says he) scenes of ruin every where appeared around me; but my attention was quickly turned from more remote to contiguous danger, by a deep rumbling sound, which every moment grew louder. The place where we stood shook most dreadfully : after some time, the violent paroxysm ceasing, I stood up, and turning my eyes to look for Euphemia, saw only a frightful black cloud. We waited till it had passed away, when nothing but a dismal and putrid lake was to be seen where the city once stood.