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XIII. Outline of the Mineralogy of the Pefitlan^ 

 Hills. 



By Professor Jameson, 



(Read l6ih February 1811. J 



Section I. 



1 HIS beautiful group of hills, is situated in the 

 counties of Mid-Lothian and Peebles. The 

 nearest point is distant from Edinburgh, in a 

 straight line, not less than four miles. It stretches 

 from south-west to north-east, and extends from 

 Dunsyre Hill to Kirkyetten Craig. As we ap- 

 proach its south-western extremity, it becomes 

 gradually lower, and terminates in the flat 

 country, which extends from Dunsyre Hill to the 

 east bank of the river Clyde ; but immediately to 

 the south, it is connected with the great southern 



