216 THE ACTION OF ORGANIC SULl'HUH IX COAL. — McCALLUAi 



The result of this calculation is given in Table IV. 



Table IV. 



No. 



One half the 

 Inorganic sulphur. 



Volatile sulphur. 



Difference. 



1 . 



31.07 



33.49 



2.42 



2 



•2\.70 



42.64 



20.94 



3 



U.22 



50.46 



36.24 



4 



8.42 



49.47 



41.05 



5 



7.38 



52.27 



44.89 



This would seem to indicate that when the inorganic sul- 

 phur was in excess the above supposition is approximately true, 

 but that it does not hold at all when the organic is in excess. 

 It seems rather strange why this should be so unless it is due 

 to mass action. 



I think we are perfectly justified in concluding that in the 

 coking process a very considerable part of the organic sulphur 

 is volatilized. 



