Facts and Observations Towards Forming a New Theory of the EarthA. Constable & Company, 1818 - 335 |
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Facts and Observations Towards Forming a New Theory of the Earth (Classic ... William Knight Podgląd niedostępny - 2017 |
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acting action of heat altered Alumina appearances arise arrangement augite basalt beds Ben Macdhui Ben Nevis chalcedony chalk chemical clay clay-slate colours connected consolidation constitution contains crystalline crystals described dissolved Dr Hutton Dr MacCulloch dykes earth Edin exhibit existence explanation facts felspar fissures formation Geol Geology globe gneiss gradually grains granite granite veins greenstone grey-wacke hornblende Huttonian hypothesis ideas igneous inclosed inferred iron Jameson's Geognosy kind Klaproth lava layers lime limestone liquid mantle-shaped marks mass mechanical deposit melt mentioned metallic mica mica-slate minerals mode mountains nature observed occur ocean origin particles petrifactions phænomena pitchstone Playfair porphyry precipitation present primary rocks primary strata proof quantity quartz quartz rock regular rest sandstone Saussure seen shew shewn shistus silex slate slaty solution spar spheroid spots stalactites strata stratified rocks structure substance supposed surface syenite theory tion traced tracts Trans trap unstratified variety Wern Werner Wernerian
Popularne fragmenty
Strona 325 - Huic autem rei summa adhibenda est cautio. Pessima enim res est errorum Apotheosis, et pro peste intellectus habenda est, si vanis accedat veneratio. Huic autem vanitati nonnulli ex modernis summa levitate ita indulserunt, ut in primo capitulo Geneseos et in libro Job et aliis scripturis sacris, philosophiam naturalem fundare conati sint ; inter viva quserentes mortua.
Strona 325 - Tanto magis haec vanitas inhibenda venit et coercenda. quia ex divinorum et humanorum male-Sana admixtione, non solum educitur philosophia phantastica, sed etiam religio haeretica.
Strona 130 - From a selection of 37 of the best of the experiments made on the length of the second's pendulum in different latitudes, La Place finds that the increase of gravity, from the equator to the poles, follows the law which theory points out as the most simple ; and hence he conceives, that the density of the layers, of which the mass of the earth consists, must augment regularly from the surface to the centre ; a condition from which he thinks it reasonable to infer the original fluidity of the whole...
Strona 322 - ... the latter are, in all cases, the most powerful, and, in respect of the former, are like living in comparison of dead forces. Hence the law of decay is one which suffers no exception : The elements of all bodies were once loose and unconnected, and to the same state nature has appointed that they should all return.
Strona 38 - An attempt to establish a pure scientific System of Mineralogy by the application of the Electro-chemical Theory an'd the Chemical Proportions.
Strona 98 - ... as ingredients foreign to the solution from which the saltpetre has shot up. It is also a known circumstance that the more slowly a solution shoots, and thelarger the crystals which it forms, the liquid expelled is the more power operates which we never can dispose of in exactly the same manner in our experiments, namely electricity, and that which in our experiments is produced in the course of a day or two at most, may in the bowels of the earth require centuries for its developement. The blended...
Strona 294 - ... motion backward, and forward, on the materials of these layers, will very much assist the accuracy of their level. It is not, however, meant to deny, that the form of the bottom might influence, in a certain degree, the stratification of the substances deposited on it.
Strona 275 - He ascertained, 1st, that the outgoings (the upper extremities as they appear at the surface of the earth) of the newer strata are generally lower than the outgoings of the older, from granite downwards to the alluvial depositions, and this, not in particular spots, but around the whole globe.
Strona 129 - ... afterwards consolidated into stone ; such a body, in the course of ages, must acquire a surface every where, at right angles to the direction of gravity, and consequently more or less approximating to a spheroid of equilibrium. The natural history of the Earth gives...
Strona 163 - ... and their limits are defined by a plane, at which a separation readily takes place, and each of the sides is invested with a rusty colour. When several spheroids come in contact on the same level, they are formed by mutual pressure into pretty regular prisms, whose division is perfectly defined ; and, when a« spheroid is surrounded on all sides by others, it is compressed into an irregular polyhedron.