3i6 



ILLUSTRATIONS OF THE 



nver 



where it is interfeded by another little 

 the Sannax, which on this fide determines the 

 bafe of tlie mountain, 

 remarkable than the other two 



This jiindion is no lefs 



The ifland of Arran contains, I have 



doubt, many ^th 

 na are to be feen 



no 



fpots where thefe phenome 

 but I have had no opportu 



in h 



nity of obferving them, nor do I find that Dr 



Hutton met with any othe 



ifland. 



282. 



vilit 



Another feries of granite veins is found 

 in Galloway, which was firft difcovered by Dr 

 Hutton and his friend Mr Clerk, and afterwards 



Hall and 



The 



r , 



of feparation between 



more fully explored by Sir J 



Mr Douglas, the prefent Earl of Selkirk 

 two laft traced the line 



a mafs of granite and the fchift 

 upon it, all round a tradt of ci 

 eleven miles 



by feven 



incumbent 

 itry, about 



/- 



banks of Loch Ken weftward 



ending from the 



^ i 



and 



m 



th 



trad they found, " that wherever the jundion 

 of the granite with the fchiftus was vifible, 

 veins of the former, 

 tenth of an inch in 



from fifty yards, to the 



the latt 



width, were to be 



ir, and pervading it 



put it beyond all doubt 



feen 



runnmg mto 



^iredions, fo 



the granite of thefe veins, and confequently of 



the 



