452 Report on the Geological Structure of the Salt Range. [No. 5. 



received in December 1851, on being taken out of its packing case 

 appeared in good order. After standing in its leather-case for a day 

 in my tent, its mahogany case warped so much as to bend forward 

 the scale (metal) and impede the movement of the vernier. The 

 first day I had occasion to take this instrument out, though carried 

 with the greatest possible care, it leaked so much as to render the 

 results obtained (in the absence of any instrument for comparison) 

 utterly valueless. It is surprising that such an instrument should 

 have been sent all the way from the Arsenal of Fort William to the 

 Punjab for survey purposes. 



A little more care in the selection, and speed in the transmission, 

 of instruments required, would save parties engaged in scientific 

 works in the N. W. Provinces from much trouble and disappoint- 

 ment. 



List of specimens submitted to Government illustrative of the Geology 

 of the Salt Range, Sfc. Sfc. 



No. 



Name. 



Deooman Rocks, &c, 



Red Gypsum Salt Marl 



Metamorphosed Argillaceous rock 

 with radiating crystals of Tre 

 molite ? in patches on the sur 

 face of the Marl 



Amygdaloidal variety of No. 2 

 with Geodes of Talc, appears 

 like a metamorphosed sand- 

 stone, 



Variety of ditto ditto, 



Geodes of Talc in No. 3 



Flesh-colored crystalline Gypsum. 



White Gypsum with Rock crys- 

 tals 



Ditto with crystals of Iron Pyrites. 



Reddish Rock Salt, 



Locality. 



Pind Dadun Khan 

 >Pind Dadun Khan 



>Noorpoor. 



Pind Dadun Khan. 

 Noorpoor. 

 Kerah Salt Marl. 



Maree Salt Marl. 



Khond. 



Pind Dadun Khan. 



Remarks. 



Contains Carbonate of 

 Mag. 



Most esteemed variety. 



