Analysis of various Kinds of Pit- Coal. 141 



Volatile matter 8*500 



Carbon - 88-068 



Ashes - 3-432 



100 parts. 



Alfreton Furnace Coal. 

 The appearance of this coal is glossy black, composed of 

 alternate layers of soft coal and black, charry, carbonaceous 

 matter, with now and then thin laminse of hard coal. Cross 

 fracture of the beds somewhat shining and pitchy. Specific 

 gravity 1*235. 



Distilled under the same circumstances as the Welsh coal,, 

 the results were as follow : 



Small pieces of coal weighing 300 grains 

 Coke obtained - - 16*34 



Loss 1364 



Bituminous matter lost in distilling 45-5 



Coke - 54*5 



100 parts. 



The fracture of this coke was more cellular than that oi 

 the Welsh, and the mass more united and compact; the 

 colour a lighter gray. 100 parts of the coke was found- 

 composed of carbon 06*25, ashes of a light-brown co- 

 lour 3*75, = 100 parts. 



100 parts of the same coal were composed of 

 Bituminous matter and water 45*500 



Carbon - - 52*456 



Ashes - - 2*044 



100 parts. 



Bittlerly Furnace Coal< 

 Strong hard coal, eolour dull sooty black, fracture sharp 

 and uneven. Specific gravity 1*264. 



300 grains of it distilled, yielded 171{ grains of a light- 

 coloured gray silvery coke. The pieces were nearly of the 

 2 same 



