f 



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ette 



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the 



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theli 

 the 01: 



^dertl 

 [ill, tl: 



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 I 



HUTTONIAN THEORY. 200 



Note xii. § 43 



'ci,| Elevation and inflexion of thejl 



the I 1^^- The evidence of the different formation 



sofji of the primary and fecondary llrata, and of the 

 j^ 1^ changes which the former have undergone, is 

 3j^ bed feen at the points where thofe flrata come 

 ,jL / into contadt with one another. Dr Hutton was 



not the firft who obferved thefe jundions, 

 though the firll who rightly interpreted the 



F 



appearances which they exhibit. He has men- 

 tioned obfervations of this fort by De Luc on 

 the confines of the Hartz ; by the author of the 

 tableau de la Suijfey at the pafs of Yetz ; by 

 Voight, in Thuringia ; and Schreiber, at the 

 ^P'^'' mountain of Gardette *. 



The leading fads to be remarked, are, 



I. The vertical or very upright poiition of 

 -')'* the primary or lower flrata. 



r 



II. The fuperftratiucation of the fecondary, 

 in a pofition nearly horizontal, fo as to be at 

 right angles to thofe on which they reft. 



III. The interpofition of a breccia between 

 them ; or, as happens in many cafes, the tranii- 

 tion of the lowed of the fecondary beds into a 



O breccia, 



4r^ 



* Theory of the Earth, vol. i. from p. 410. to 453 



