OF THE ORKNEYS, 
175 
we saw the gneiss evidently running out at this point under 
the waves of the Atlantic Ocean. From the same circum- 
stance, we may also remark, that here, as in other parts of 
this kingdom, the primitive and highest lands are on the 
west ; and further, that the gneiss in Pomona appears in 
the form of a nucleus, round which, or towards which, the 
secondary strata uniformly tend. 
I am, &c. 
Inverness, 
Tlth October 1821. 
