\ 



1 



• • 0\3 





e 



I 



f, 



HUTTONIAN THEORY. 





347 



Ih 



of 



louth of Fort-William, it will mark out the cen- 

 tk tral chain of the Grampians in its full extent, 



trti 



•^f 



paffing 



over the moll elevated ground 



d by 



« W 



fted 



% 



the heads of th 



gell rivers, in Scotland 



^A 



\ ^^^ ah 



■' 3s the 1 



ct 



t 



'^IH 



) UK>, 





► ■■ 



^r^^ and 





ifr 



' « ' 



f 



Along this line there are many granite moun- 

 tains, and large trads in which granite is the 

 prevailing rock. There are, however, large 

 fpaces alfo in which no granite appears, though, 

 if we were permitted to fpeak theoretically, 

 and if the queftion did not entirely relate to 

 a matter of obfervation, we might fuppofe, 

 that, in no part of this central ridge is the gra- 

 nite far from the furface, notwithilanding that 

 in fome places it may be covered by the fchif- 



tus. 

 k^ infuk': 212. A great part of the Grampian mountains 



jtfDitii^e, h is on the fouth fide of the line juft mentioned, but 



js over a fes hardly any granite is found in this divifion of 



I 



• where 

 n ; but 



,v 



' ,w 



x) 



'° 01 ; 



In tte it 



cf Galloffai; ; 



le to be (Jf'*'! 





sofP 



£#? 



ui^ 



fct' ■ 



e 





r 



them, except fuch veins as thofe of Glentilt. 

 On the north fide of the line, the granite extends 

 in various directions ; and, if from Fort- Wil- 

 liam a line is drawn to Invernefs, the quadri- 

 lateral figure, bounded on two fides by thefe 

 hnes, and on the other two by the fea, will be 

 found to contain much granite, and many di- 

 ftrids confining entirely of that fl:one. This is 

 in fad: the great granite country of Scotland : 

 it is a large tradl, containing about 3170 

 i<^uare geographical miles, or about a fevcnth 



part 





