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Wednesday, April 16th
12:00 AM

Water Problems

Jennings Randolph

12:00 AM

Missouri Stream Studies Relating to the "New Lead Belt"

Bobby G. Wixson
Ernst Bolter

12:00 AM

Extent, Sources and Control of Pollution from Mining Activities

Don L. Warner

12:00 AM

Acid Mine Water Control

Ronald D. Hill

12:00 AM

Deep Well Disposal of Liquid Mine Wastes

Erle C. Donaldson

12:00 AM