Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
15 results returnedSearch results
- Mine explosions and fires in the United States during the fiscal year ended June 30, 1933
- Coal-mine explosions and fires in the United States during the fiscal year ended June 30, 1934
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1936
- Coal-mine explosions and fires in the United States :during the fiscal year ended June 30, 1935
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1937
- Thousands killed by coal-mine explosions in the United States
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1938
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1939
- Coal-mine explosions and coal- and metal-mines fires in the United States during the fiscal year ended June 30, 1940
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1941
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1944
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1945
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1947
- Coal-mine explosions and coal- and metal-mine fires in the United States in 1949
- Coal-mine explosions and coal- and metal-mine fires in the United States in 1950, 1951, and 1952