of the Counties of Derry and Antrim . 193 
each of these views too, exhibits one of our depressions, but 
in that of Pleskin, the first apparent depression is purely an 
optical effect arising from the position of my friend Major 
O'Neal, of the 56th, who took his view from the water. 
Enumeration of the sixteen Strata that compose the Promontory 
of Bengore, taken in their regular Order , and counting from 
above. 
The country immediately to the southward of Bengore is like 
the Promontory itself, a stratified mass, accumulated to the 
summits of Craig Park and Croaghmore, the first five hundred 
and the second seven hundred feet high ; but with these strata 
I have nothing to do, limiting myself to those alone of which 
the promontory is formed, and which are exhibited in its 
facades. 
The uppermost of these commences near half a mile to the 
eastward of the angle, where the coast deflecting from its due 
east and west course, turns to the north-west, and begins to 
form the promontory. 
So far the course of this stratum is to appearance perfectly 
horizontal, for the strata all ascending to the north, the inter- 
section of their planes with the plane of the sea, must run east 
and west, that is, in the present case it coincides with the 
direction of the coast. 
But when the coast changes its direction, this coincidence 
ceases, and the facade ( that is the vertical section of the coast) 
losing its east and west course, its strata must appear to ascend 
towards the point it turns to, therefore the strata at Port- 
moon, and along the north-east side of the promontory, should 
ascend obliquely along the facades, as they actually do. 
C c 
MDCCC VIII. 
