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HUTTONIAN THEORY. 



329 



and renders it eafy to obferve their flrudure. 

 The beds are not very thick ; they run from 

 about S. S. W. to N. N. E. like the fchiftus on 

 either fide of them. I was in company with 

 Sir James Hall when I faw thefe rocks ; we ex-^ 

 amined them with a good deal of attention, and 

 traced them for more than a mile in the bed of 

 the river ; and, if I mifiake not, our opinions 

 concerning them were precifely the fame. 



295. What exifts in two inilances may exift in 

 many, and, after thefe obfervations, I fhould be 

 guilty of great inconfiftency, in refufing to alfent 

 to the accounts of Pallas, De Luc, Saulfure, and 

 many other.mineralogifts, who fo often reprefent 



•ata. In fome cafes, how- 



granite as formed into ftrata. 



ever, it is certain, that the flratification they de 



fcribe is extremely unlike that in the two inftan 



jull mentioned 



d 



deed very unlike any 



fi 



igthat is elfewhere known by the nameof itra- 

 ^ation. For example, the flratification mull 

 be very ambiguous, and very obfcurely marked, 

 that was not difcovered till after a feries of ob- 



fervations 

 years, by 



d for more th 



twenty 



■y &ilful and difi;inguifiiing mi 



fie 



ogift. Yet fuch undoubtedly is th 



a 



of Mont Bl 



d 



f th 



granite 



mountains in its 



the 



eye 



f Saulfu 



ghbourhood, as it efcaped 



in the repeated 



fits 



hich he made to them, during a period of 



F 



no 



\ 





