C111

Publication Title: 
Industrial minerals produced in Illinois in 1943 : clays and clay products, fluorspar, sand, gravel, silica sand, ground silica, tripoli, stone, cement, lime, mineral wool ; and, Agstone used in Illinois in 1943 : preliminary report
Publication Type: 
Circulars
Author: 
Walter H. Voskuil and Douglas F. Stevens
Year: 
1944

Ordering information for Illinois State Geological Survey publications