Search U.S. government technical reports digitized or harvested by TRAIL.
Mining and treatment of lead and zinc ores in the Joplin district, Missouri :a preliminary report
Answers to questions on the flotation of ores
Accidents at metallurgical works in the United States :during the calendar year 1921
Accidents at metallurgical works in the United States :during the calendar year 1922
Accidents at metallurgical works in the United States :during the calendar year 1923
Accidents at metallurgical works in the United States :during the calendar year 1924
Accidents at metallurgical works in the United States :during the calendar year 1925
Accidents at metallurgical works :during the calendar year 1926
Centrifugal concentration :its theory, mechanical development and experimental results
Accidents at metallurgical works in the United States :during the calendar year 1927
Classification and tabling of difficult ores :with particular attention to fluorspar
Roasting of lead-carbonate ores preliminary to gravity concentration
Re-treatment of mother lode (California) carbonaceous slime tailings
Accidents at metallurgical works in the United States :during the calendar year 1928
Accidents at metallurgical works in the United States :during the calendar year 1929
Accidents at metallurgical works in the United States :during the calendar year 1930
Accidents at metallurgical works in the United States :during the calendar year 1931
Accidents at metallurgical works in the United States during the calendar year 1932
Semi-pilot-plant investigations of nitrogen dioxide process for beneficiation of manganese ores