80 Dr. H. Prevswerkh—Oil Region of the Northern Punjab. 
is inversely inclined to the north-west at rather a high angle, so that 
in Section I the anticline B has sunk completely underground. 
Its probable position in Section I is marked by a slight curve on the 
strata (on Fig. 10). 
In Section III the dimensions of the two anticlines are still 
more different. The whole range is formed only by the anticline B, ° 
the anticline A having sunk completely underground. 
Farther to the south-east the high ridge culminating at the point 
3,060 feet (Fig. 9), is entirely formed by the limestone core of the 
anticline B. : 
In these—from the geological point of view—young folds of the 
western Salt Range the shape of the surface is in strict mutual 
relation with the geological structure of the ground. Thus, for 
instance, it can easily be observed from a distance of several miles 
that the axis of the anticline B inclines south-east towards the valley 
of the Majuchh Nala. I have therefore examined the outcrops of 
this valley, and indeed I found that the crest of the anticlinal lime- 
stone core rises only very little above the Majuchh Nala, and a few 
hundred metres farther to the south-east of the river the whole 
limestone arch is entirely covered by the Upper Nummulitic deposits. 
The pitch of the descending anticlinal axis is about 15°. (Figs. 9 
and 10, Section IV.) 
- Higher up the Majuchh valley the Nummulitic limestone forms 
some flat folds and rises up over the older formations lying below. — 
The Upper Nummulitic and the Murree beds are limited to the north- 
eastern exterior border of the hills. 
From the description given above it follows that the predominating 
structure of the north-eastern border of the western Salt Range is 
a typical example of folding. There are several folds alternating in 
such a way that the folds lying more inside of the hills approach 
—striking south-east—the exterior border, while the folds of the 
border disappear from the surface descending below the ground 
level. The different anticlines appear distinctly as mountain 
ranges, and disappear from the surface owing to the pitching of 
the anticlinal axis. 
(To be concluded.) 
