HOCKING VALLEY. 



New Straitsville Coal. 



661 



These four samples were taken from the same opening, and represent 

 different parts of the bed from below upwards. 



These analyses, copied from Prof. Andrews's report, were made by Prof. 

 Wormley, of the geological corps, as are the other analyses given in this 

 report, except where credit is given to other chemists. They indicate a 

 peculiarity in regard to the manner in which the sulphur is combined 

 in the coal, to the practical importance of which Prof. Wormley first 

 called attention. It will be seen that a very large percentage of the sul- 

 phur passes off with the volatile portion of the coal, so that if the raw 

 coal is used in the smelting furnace, the coke in the stack, where the iron 

 is reduced, is remarkably free from sulphur. 



For purposes of comparison we give the following tabfe of analyses of 

 selected specimens of the best qualities of the Mahoning Valley coal : 



1. Brookfield, TruuibuU county. 



2. Liberty, Trumbull county. 



3. Liberty, Niles Coal Company. 



4. ShenaTigo Coal Company. 



5. Andrews Coal Company, Vienna. 



6. Love BanK, (Andrews and Hitchcock) Vienna. 



