346 Beport on the Geological Structure of the Salt Mange. [No. 4*. 



of the genus Cerithium or some allied genus. The surface of the 

 shales is sometimes encrusted with an efflorescence of sulphate of 

 magnesia. 



The coal is somewhat difficult to ignite, and at first emits a large 

 quantity of smoke which has a strong empyreumatic odour. When 

 combustion, however, is once established, it burns without coking, 

 gives out a considerable amount of flame and heat, and leaves a brown 

 ash, the quantity of which varies considerably in different specimens. 

 "We annex the results of the analysis of two specimens of Baghan- 

 walla coal, and of the coal from the Kathee alum-shale pits. 

 Baghanwalla No. 1. 



Coke (carbon), 41.36 



Volatile, bituminous inflammable matter, 40.64 



Ashes, 18.00 



Total, 100.00 



Baghanwalla, No. 2. 



Coke (carbon), 59.705 



Volatile, bituminous inflammable matter, 38.455 



Ashes, 1.840 



Total, 100.000 



N. B. No. 1 was from the upper part of the seam. No. 2 was 

 from its centre, and was a remarkably fine fresh specimen. 

 Coal — Kathee alum-shale pits. 



Carbon (coke), 33.579 



Volatile, bituminous inflammable matter, 36.421 



Ashes, 30.000 



Total, 100,000 



From the above it will be seen that though inferior to good Eng- 

 lish coal, that of Baghanwalla possesses the necessary requisites for 

 a good steamer fuel. The small amount of ash in No. 2 is very re- 

 markable. 



