Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
10066 results returnedSearch results
- Burning of various coals continuously and intermittently on a domestic overfeed stoker
- Annual report of the Explosives Division for the fiscal year 1936
- Performance of a Baum-type coal-washing jig
- Flotation and agglomerate concentration of nonmetallic minerals
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1937
- Some pertinent information about mine gases
- Federal placer-mining laws and regulations
- Progress reports :Metallurgical Division.
- Truck vs. rail haulage in bituminous-coal strip mines
- Survey of crude oil in storage, 1936-1937
- Consumption of primary and secondary tin in the United States in 1936 and 1937
- Progress reports--metallurgical division.
- Porosity of the Sundance Sand in the Lance Creek oil field, Wyoming
- Ventilation of manholes.
- Mineral economics series.
- Oxidation of anthracite :effect of time of contact on the concentration of oxygen in the effluent gases
- Tests of a barrier using rock dust in paper bags
- Earth vibrations caused by mine blasting :progress report 2
- Ball-mill grindability indexes of some American coals
- Active list of permissible explosives and blasting devices approved prior to June 30, 1938
- Federal placer-mining laws and regulations,
- An explanation of washability curves for the interpretation of float-and-sink data on coal
- A study of explosives accidents reported to the National Safety Competition, 1925-35
- Marketing mica
- Coal-mine explosives :their characteristics, selection and safe use
- Petroleum refineries, including cracking plants, in the United States, January 1, 1938
- Natural-gasoline plants in the United States January 1, 1938
- Hazards of methane from well water in some sections of Illinois
- Gold mining and milling in Idaho County, Idaho
- Some instruments and devices that coal-mine officials should understand and use
- Forwarding health and safety in coal mining by use of watering methods
- Ichthyol :its source and properties
- Some observations on coal-mine fans and coal-mine ventilation
- Lighting practices in coal mines of the United States
- Review of literature on conditioning air for advancement of health and safety in mines
- Reconnaissance of placer mining in Boise County, Idaho
- A technique for use of the impinger method
- Gold mining in New Mexico
- Reconnaissance of mining districts in Humboldt county, Nevada
- Laboratories that make assays, analyses and tests on ores, minerals, and other substances
- Gold mining and milling in northeastern Oregon
- Thousands killed by coal-mine explosions in the United States
- Dewatering and drying of coal
- Verde antique
- List of permissible mine equipment approved during 1937
- Fatalities in Illinois coal mine, 1934-36
- Accident experience of Louisiana salt mines
- Mine Safety Board decision 28 :safety catches and arresting devices for cages, skips, and cars in mine shafts and slopes
- Laboratories that make fire assays, analyses and tests on ores, minerals, and other inorganic substances
- Mining and milling methods and costs at the Summitville Consolidated Mines, Inc., Summitville, Colo.