412 On the ROCKS in the 



Salisbury Craig is fituated on the north fide of Arthur's 

 Seat, againrt which its fouthern extremity refls : from this it 

 extends, in a northern direction, and rounds towards the 

 eail, fo as to form the fegment of a circle, about half a 

 mile in length It is furmounted by a magnificent facade, 

 which i is loweft at the extreme points ; towards the mid- 

 dle, the perpendicular rock may be from 80 to 90 feet high. 

 From the bafe of this precipice, a Hoping bank, covered 

 with debris, reaches to the valley below, altogether form- 

 ing an elevation of nearly 400 feet. From the upper edge 

 of it, a regularly inclined plane, flopes gently, on the oppofite 

 fide, at an angle of about 15 , in a north-earl direction, and 

 forms the left bank of the valley, called the Hunters Bog. On 

 the right of this valley, the rocks again rife rapidly, affording 

 indications of two or three feparate facades. Thefe are not 

 characterized in the diftinct manner of Salifbury Craig, but are 

 furmounted by a furface, which, though a little rounded, pre- 

 fents an inclination correfponding with that of the Craig, in 

 a very ftriking manner. 



From the bafe of Salifbury Craig, or rather from the bafe of 

 the debris by which it is encircled, towards the fouthern ex- 

 tremity, the ground again rifes, and prefents an inclined plane, 

 fimilar to its own, but of lefs magnitude. This is known by 

 the name of St Leonard's Hill. 



Hence it appears, that there are three fimilarly inclined 

 planes or terraces, of which Salifbury Craig forms the interme- 

 diate one, each of them having a different elevation. From this 

 ftructure we may eafily conceive the origin of the Swedifh 

 word 'Trap, which has been employed as a generic term, for 



the 



