DESCRIPTIVE GEOLOGY : SLATE ZONE. 115 



considerable contortion of the statra well seen in the view (PI. 9). 

 The Trias limestone coming beneath it is of considerable thickness 

 and is very typically developed. About ij miles before reaching 

 Shawali the outcrop of the latter also climbs the hill leaving the 

 Slate series exposed beneath it. It is to be noticed that there 

 is no trace of the Infra-Trias between the slates and the Trias at 

 this place nor anywhere to the north round this end of the hill-mass. 

 On the testimony of Mr. Edwards also there is no trace of the 

 haematite or felsite. This is an instance of the peculiarity noticed, 

 page no. The disappearance of the Infra-Trias from the section in 

 this part of the hill does not appear to have been noticed by Waagen 

 and Wynne as they carry its colour on their map all the way along 

 in this direction to the end of the hill. The band of the Jura-Cretace- 

 ous also which is very marked (see sketch, fig. 8) is misplaced on 

 their map and carried too far to the north. It is represented as 

 occurring i£ miles north-west of Dhumtour in the neighbourhood of 

 a " ziarat. n \ In reality the shaley rocks seen there are part of the 

 Nummulitic series, whilst the true Jura-Cretaceous band vanishes 

 under the alluvium of the river-bed about due west of Dhumtour. 

 It should be remarked once for all that I merely mention such little 

 corrections as these in order that it may be understood that I have 

 not altered Waagen and Wynne's map in these matters of detail 

 from caprice or from holding a different opinion as to how the 

 beds should run, but simply as the result of an intimate acquaint- 

 ance with every foot of the mountain. Waagen and Wynne express- 

 ly state at the end of their Sirban paper " we have not sought to 

 map the boundaries with absolute accuracy as yet ;" so that I hope 

 these little corrections will be accepted as offered in no carping 

 spirit. When it is as easy to be accurate as not I think it right to 

 call attention to such changes, though small in themselves, because 

 an extended survey of any tract always brings such to light, without 

 in the least reflecting blame on the earlier workers who had to give 



1 Ziarat - sacred grove, 

 12 ( 115 ) 



