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Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof
Report issued by the U.S. Bureau of Mines over state mine inspection reports from 19 U.S. states. The information in the reports includes details of accidents, locations that specific accidents occurred, and proposed remedies for prevention of future accidents. This report includes tables.
Date:
April 1929
Creator:
Paul, James Washington
System:
The UNT Digital Library
Ocher and Ochery Earths
Report about ocher or ochery earth, "a natural mineral pigment composed largely of clay permeated with hydrated iron (ferric oxide)" (p. 2). It includes information about the uses of choer, substitutes, artificial ocher, mining and local deposits, import and export of ocher, and related information.
Date:
May 1929
Creator:
Santmyers, R. M.
System:
The UNT Digital Library