Devonian and Silurian in Crawford County, Illinois

Call Number: 
MS Workman, L.E. #16
Author: 
Workman, Leland E.,
Date: 
1929
Description: 
3 p. : 1 plate
Notes: 

Summary description of sample cuttings from Devonian and Silurian limestones from the bottom of the Sweetland Creek to the top of the Maquoketa;
Cited in Circular 220, "Unpublished Reports on Open File";

Keywords: 

Devonian--Illinois--Crawford County
Silurian--Illinois--Crawford County

 

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