Search U.S. government technical reports digitized or harvested by TRAIL.
Mineral dressing investigation of titanium ore from the Christy property, Hot Spring County, Ark.
Mineral-dressing study of manganese ore, Cason Mine, Batesville, Ark.
Preliminary mineral-dressing investigation of East Texas brown iron ores
A mineral-dressing study of manganese deposits of West-central Arkansas
Mineral-dressing investigations of the recovery of pyromorphite from a Newton County Mo., deposit
A mineral-dressing study of manganese deposits of the Batesville, Ark. district