■42 



PERSONAL NARUATiyE. 



hills, being 300 or 400 feet at least above the plain, some- 

 what as represented in the accompanying sketch section. 



1, Trachyte ; 2, Sandstone ; 3, Metamorphics. 



Another hill similarly composed, trachyte resting on 

 a thin bed of sandstone, with metamorphics below, lies 

 about three miles south of Senafd, just west of the road 

 to Guna Guna. To the west of this, and south of the 

 deep ravine already mentioned as commencing just west 

 of Senaf^, is another extensive plateau, mainly composed 

 of sandstone, from which, about eight miles west by 

 south from Senaf^, there rises a fine trachyte hill, called 

 Kishyat. The northern face of this hill is precipitous, 

 and consists of magnificent vertical columns, which 

 extend the whole height of the cliff, upwards of 300 

 feet, without a single curve or break. The rock is 

 pale greyish, or purplish, more crystalline than the 

 trachytes near Senaf^. Another small hill of the same 

 composition is met with on the road from Senafe to 

 Kishyat. A third, a little inferior only to Kishyat 

 in size, lies across the deep ravine to the south of that 

 hill, at a distance of about five miles. Others are scat- 

 tered over the surface of the sandstone to the southward 

 near Fokada, and will be mentioned presently. It is 

 by no means improbable that these are all remains of 

 the same great lava flow. 



