PREFACE. Vll 



me the rather difficult task of re-casting alone matter in- 

 tended for a joint publication. 



The originality of this Memoir will, in one aspect, be 

 necessarily limited, when the long list of previous writers 

 upon the geology of the Salt Range is considered. That the 

 Range contained carboniferous, Jurassic, or oolitic, possibly 

 triassic, eocene, and perhaps miocene, formations, has long 

 been known from former publications ; but the addition to 

 these of an ascertained silurian zone above the salt, and a 

 new arrangement of all of its groups, have resulted from the 

 operations of the Geological Survey. 



The bulk of the following report has lain for some years 

 in manuscript awaiting publication. This has been post- 

 poned for various reasons, the chief of which I have men- 

 tioned. The extensive fossil collections from the district, 

 when I last saw them, had been but partially prepared for 

 examination, and though I can only give such provisional 

 identifications as were afforded by our lamented colleague 

 Dr. Stoliczka and by Dr. Waagen, it is satisfactory to know 

 that the palaeozoic and secondary fossils have been forwarded 

 lately to Dr. Waagen himself for description. 



In preparing this Memoir for publication, I have to thank 

 Mr. W. T. Blanford for much assistance in reading the 

 proofs ; and whatever success has attended the reproduction 

 of my landscape illustrations is largely due to their treat- 

 ment by Mr. Schaumburg, the Artist of the Survey. 



A. B. WYNNE. 



Camp Hazaka, 



November 1877. 



