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But even morewill be striking examples of the influence of this secret belief that weremains to lead. Sir R. Murchison not only facing anotherlongingly layers in a relatively close region, as the Scottishlowlands; but in the Rhenish provinces, certain "quartz pletaci andSandstone, similar to logminsize", lead him, apparently, to the factthe conclusion that they are modern of the above species due to their similaritieswith the last one. "Quartz roofing tiles with a greenish tinge,reminding us of the lower layers of slate and Cumberland Westmorland",obviously, the latter are assumed to be modern. He further notices thatRussia on top of the Carboniferous limestones along the Western margin of the Uralthe ridge lies the Sandstone and sandy stone, occupies the same place inthe General procedure that millstone Sandstone (millstone grit) is in England.Calling this group "representative of the millstone Sandstone", sir R. Murchisonclearly shows that he thinks likeness of mineral composition of somekind of proof of the simultaneity of origin even in a bigdistance. Moreover, he finds this kind of similarity on the slopes of the Andeanmountains in the United States and then takes them for an indication of suppliesformations to the well-known period. And he does this not because that wastheoretically, the relation between lithological properties and the degreethe antiquity of the formation. No; on the very page from which we have justresulted in an extract (Siluria, p. 387), he says: "meanwhile, as the soft bottomthe Silurian clays and Sands of St. Petersburg meet in the depths of the Uralrange of solid slate and quartz with gold veins, soft red and greenDevonian marl is replaced by the Valdai mountains on the Western slope of the ridgehard, twisted and broken layers of limestone". But these and otherthese facts allowed them, apparently, have no in his eyes greatvalues. He recognizes that the Potsdam Sandstone of North America,English linguisti of lemagny and alum-slates of Scandinavia belong tothe same period; it is known that between the Silurianformations of Wallis Dating oolitic strata, like layers of secondaryperiod, but nevertheless, in all his reasoning more or lesslurks the assumption that formations, similar in composition,belong to the same era. It is not clear whether it is seen from this that for a long timerejected the hypothesis of Werner continues still to influence geologicalspeculation? But we will object, perhaps, that "although individual layers notrepresent the continuity at large distance, we notice thatcontinuity in systems of reservoirs. Although for a few miles and onethe same layer gradually moves from clay to sand or thinning and quitedisappears, but the group of strata to which it belongs, is not subjectsuch changes and stores in the most remote from each other placesthe same ratio for other groups".
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