The occurrence of coal balls in No. 6 coal bed at Nashville, Washington County, Illinois

Call Number: 
MS Cady, G.H. #48
Author: 
Cady, Gilbert Haven,
Date: 
1935-40?
Description: 
5 p. (and carbon copy with 2 pages, and carbon copy with 4 pages)
Keywords: 

Coal balls
Herrin (No. 6) Coal--Illinois--Washington County

 

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