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11 



STATE OF ILLINOIS 



DWIGHT H. GREEN, Governor 



DEPARTMENT OF REGISTRATION AND EDUCATION 



FRANK G. THOMPSON, Director 



DIVISION OF THE 



STATE GEOLOGICAL 



M. M. LEIGHTON. Chief 

 URBANA 



SURVEY 



REPORT OF INVESTIGATIONS — No. 97 



CORALS FROM THE CHOUTEAU AND RELATED 



FORMATIONS OF THE MISSISSIPPI 



VALLEY REGION 



BY 



013 



William H. Easton 



PRINTED BY AUTHORITY OF THE STATE OF ILLINOIS 



URBANA, ILLINOIS 

 1944 



FRANK J. BELL 



GEOLOGIST 

 CARBONDALE, ILL. 





5iV 



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