185-4.] Examination of four specimens of Darjeeling Coal. 383 



coal to be used on the spot, but I fear it would suffer heavy waste 

 from breakage, if carried any distance. 



No. II. 

 Coal from the llakanuddi* 

 The principal lump of this coal sent us reminds one of a section 

 of a flattened stem ; and the more so, that its dull exterior is 

 strongly reeded in several parts. 



Its fracture may be described as laminar and longitudinally curved 

 in the lamina. In the cross fracture it is a very bright bituminous 

 looking coal, sometimes, like the foregoing, shewing spots and rings 

 like compressed balls of the size of a pea, or jointed columns of the 

 size of a large quill or pencil. It is every where penetrated by 

 stains of oxide of iron, but does not shew on the exterior any strong 

 ferruginous coating like No. I. 



It is very brittle and tough, and its streak is a dull brownish 

 black. 



Its smoke when burnt is somewhat sickly, mixed with an aromatic 

 flavour which, like No. 1., may be succinic acid. It has no sort of 

 pungency, but it discolours the crucible, though not strongly, so that 

 it may contain a mere trace of sulphur. 



It does not soil the fingers, and its powder in the crucible, when 

 the gaseous constituents have been driven off, is not so bright and 

 steely as No. I. 



It flames well in the forceps, but does not melt at all. It cokes 

 to a crumbling bright cinder. 



Its Specific Gravity is, 1.32. 



Its constituents in 1 00 parts I found to be : 



Water, 5.50. 



Carbon, , 56.40. 



Gaseous matter, 33.60. 



Ash, of a light fawn colour, 4.20. 



99.70. 



* Note by Dr. Campbell, This is the largest and most promising vein yet discovered 

 in the Darjeeling territory. Some of the blocks in my possession are a foot square, 

 and the vein where it has been exposed is described as being two feet thick. — A. C. 



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