MINERALOGY OF THE OCHILS. 



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nearly the whole of the valleys of Kinross and 

 ^Eden ; while grey sandstone, slate-clay, bitumin- 

 ous shale, pitch-coal, and clay-ironstone, form the 

 right bank of the Eden, to the south of St An- 

 drew's. On the left bank, which is more imme- 

 diately contiguous to the Ochils, beds of sand, 

 clay and marl have been observed. 



The rocks composing the Ochil Hills, occur in 

 nearly the following order " 



1. Red sandstone. 



2. Amygdaloid. 



3. Grey sandstone. 



4. Limestone. 



5. Slate-clay. 



6. CiaystonCa 



7. Tuff. 



8. Basaltic clinkstone. 



9. Greenstone. 



10. CI ay stone porphyryo 



11. Felspar porphyry. 



12. Compact felspar, 



I. Red Sandstone. 



This rock occurs for the first time, in travelling 

 from east to west, on the shore below Birkhill. It 

 is also found in a quarry between Bambriech 

 Castle, and Newburgh ; in the small hills between 



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