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Method and Cost of Dredging Sand and Gravel by the Ohio River Sand Co., Louisville, Kentucky
Report issued by the U.S. Bureau of Mines discussing dredging methods of used by the Ohio River Sand Company. The different methods and costs used to recover gravel and sand are described. This report includes tables and illustrations.
Date:
January 1931
Creator:
Duffy, J. Hamilton
System:
The UNT Digital Library
Coal-Mine Fatalities in December, 1930
Report issued by the U.S. Bureau of Mines on the coal mine related deaths during December, 1930. The number of fatalities and the causes are presented. This report includes tables.
Date:
January 1931
Creator:
Adams, William Waugh & Chenoweth, L.
System:
The UNT Digital Library