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CARBONIFEROUS LIMESTONES OF MISSOURI. 



Of similar formation is the country comprised in the neck of land lying between 

 Charbonniere, on the Missouri River, and the Grand Chain, on the Mississippi. 



A few unimportant outliers have been detected, on both sides of the Missouri 

 River, beyond the general confines of the Illinois coal-field, in St. Charles and St. 

 Louis Counties, namely, on the ridges giving source to the waters of Coppermine 

 Creek, on the north, and on the south, in the ridges between the Missouri and 

 Meramec. 



In no instance have I discovered a workable bed of coal beneath the limestones 

 on which the city of St. Louis stands ; although I have been able to inspect the 

 strata underlying that member of the subcarboniferous limestone in more than fifty 

 sections in Iowa and Missouri. 



