104 GEOLOGY OF ILLINOIS. 



which now intersect the county, the demand for coal was too limited to justify 

 any large expenditures in coal mining operations. Now, an extensive market 

 is opened on the Mississippi river for the coals of this region, and the cities of 

 Burlington and Keokuk, in Iowa, and Warsaw, in this State, will soon obtain 

 their main supplies of coal from this county. 



In quality, the coals to be obtained here, are fully equal to the average of 

 our Illinois coals, and they will answer all the purposes for which coal is re- 

 quired, except for the smelting of iron in the raw state, and it is probable that 

 a part of No. 6, and the whole of No. 7, if it could be found thick enough to 

 be worked successfully, could be used in the iron furnace without coking. No. 

 6 is generally a soft coal, with a tendency to break into cubic blocks, and has 

 afforded the following result, on analysis, by Messrs. Blaney & Mariner, of Chi- 

 cago: 



Water 6.17 



Ash 1.91 



Bitumen r 29.82 



Carbon. . .... .. 62.10 



100.00 

 Coke 64.01 



The specimens affording the above, which is the average of two analyses, was 

 taken from Mr. Piper's mine, two miles north of Canton. An analysis of spe- 

 cimens from John Winterbottom's mine, two miles southeast of Cuba, probably 

 No. 4 coal, gave the following as the average result of two analyses : 



Water 5.18 



Ash 7.51 



Bitumen 30.06 



Carbon.. .. 57.25 



100.00 

 Coke 64.76 



An analysis of No. 6, from Effnour's mine, near Cuba, gave, as the average 

 of two analyses, the following : 



Water 5.94 



Ash 5.38 



Bitumen 30.80 



Carbon 57.85 



99.97 

 Coke 63. 23 



These analyses of the two most important coals in the county, will serve to 

 indicate the average quality of the coals of this region, and also show the vari- 

 ations that may occur in the quality of the coal from the same seam, at differ- 

 ent localities, as evidenced by the result of the analyses of specimens of No. 6 

 from Effnour's mine, near Cuba, and from Piper's mine, near Canton. At 



