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Technology and Uses of Silica and Sand
Report issued by the Bureau of Mines over studies conducted on the production and uses of silica. Forms and different uses for silica are discussed. This report includes tables, illustrations, and photographs.
Date:
1927
Creator:
Weigel, W. M.
System:
The UNT Digital Library
Subsidence Due to Coal Mining in Illinois
Report issued by the Bureau of Mines over investigations on surface subsidence from coal mining in Illinois. The results of the investigations are presented and discussed. This report includes tables, illustrations, and photographs.
Date:
1927
Creator:
Herbert, Charles Arthur & Rutledge, J. J.
System:
The UNT Digital Library