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 Theories |
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Page viii
... frequently observe that the cultivation of particular branches of science , at certain peri- ods , was determined by causes which had little connection with their intrinsic utility . Fashion , caprice , and the authority of eminent ...
... frequently observe that the cultivation of particular branches of science , at certain peri- ods , was determined by causes which had little connection with their intrinsic utility . Fashion , caprice , and the authority of eminent ...
Page 7
... frequently more or less perfectly crys- tallized . These rocks generally occur in immense masses or beds ; they form the lowest part of the earth's surface with which we are acquainted , and they not only constitute the foundation on ...
... frequently more or less perfectly crys- tallized . These rocks generally occur in immense masses or beds ; they form the lowest part of the earth's surface with which we are acquainted , and they not only constitute the foundation on ...
Page 9
... frequently re- pose . It was formerly supposed that tertiary strata were very limit- ed in extent , and were confined to a few districts in Europe ; recent observations , however , prove that strata of this class cover consider- able ...
... frequently re- pose . It was formerly supposed that tertiary strata were very limit- ed in extent , and were confined to a few districts in Europe ; recent observations , however , prove that strata of this class cover consider- able ...
Page 10
... frequently no rock similar to the fragments occurs within a hundred miles or more of the place where they are deposited . They indicate the action of torrents and inundations , which have swept over the face of our present conti- nents ...
... frequently no rock similar to the fragments occurs within a hundred miles or more of the place where they are deposited . They indicate the action of torrents and inundations , which have swept over the face of our present conti- nents ...
Page 19
... frequently covered with crystals or incrustations of pyrites , I will venture to hazard a conjecture respecting the man- ner in which these crystals , or incrustations of pyrites , or sulphuret of iron , are formed . The stratum before ...
... frequently covered with crystals or incrustations of pyrites , I will venture to hazard a conjecture respecting the man- ner in which these crystals , or incrustations of pyrites , or sulphuret of iron , are formed . The stratum before ...
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An Introduction to Geology: Intended to Convey a Practical Knowledge of the ... Benjamin Silliman,Robert Bakewell No preview available - 2018 |
Common terms and phrases
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
Popular passages
Page 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...
Page 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.
Page 441 - And the Children of Israel were fruitful, and increased abundantly, and multiplied, and waxed exceeding mighty; and the land was filled with them.
Page 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.
Page 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.
Page 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.
Page 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.
Page 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.
Page 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.
Page 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.