70 



IV. — Extension or non-extension oe the salt beyond this district. 



One other point remains to be discussed before entering upon 

 detailed descriptions of some of the sections to be found in the country, 

 namely, how far the salt-beds of the series may be limited to the part 

 of this region under British Government or within British influence. 



From what has been previously stated, it will be seen that the rock- 

 salt of the district is one of the rocks of a series which, whether con- 

 sidered as nummulitic or as part of the great tertiary system of the 

 province, is not necessarily hounded by any natural lines within the British 

 Frontier. 



In the direction of the Manzulli or Threekanushpa range the clays 

 and gypsum of the salt series hold westward along the frontier line 

 beyond the last salt known, but the gypsum appears to be dying out, 

 or its surface exposure lessening owing to the stratigraphical position of 

 the adjacent beds. 



To the northward of this place the nummulitic limestone looked 

 upon as part of the same sequence continues also westward, forming hills 

 nearly to the Kuram river, and to the southward, the axis of the Baha- 

 dur Khel, disturbances diverging from those of Manzulli embrace a 

 wide area of newer tertiary rocks crowned by the crags of Kaffir Kot in 

 the Waziri country. 



There are indications in the endings of the nummulitic anticlinals 

 at Suppurri and Luttummer that the axes of these are passing below a 

 oreat mass of newer rocks which, overlying the limestone, would effec- 

 tually conceal the salt, but that this state of things does not continue 

 is shown by the recurrence of the limestone, forming a conspicuous hill 

 within the Waziri territory north of Ban mi. The aspect of this hill 

 from a distance is all that can be remarked upon, and it looks as if it 

 was an isolated exposure caused by an upward arch in the axis, beyond 

 which the tertiary sandstones, &c, from the appearance of the ground, 

 might be expected to come in strongly in the valley of the Kuram. 



r ( 174 ) 



