Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
10066 results returnedSearch results
- Carbonizing properties and petrographic composition of washed and unwashed Lower and Upper Kittanning-bed coals from mines 72 and 73, Johnstown, Cambria County, Pa.
- Experiments on strength of small pillars of coal in the Pittsburgh bed
- Carbonizing properties and petrographic composition of Sewell bed coal from Wyoming Mine, Wyoming County, W. Va., and the effect of blending this coal with Alma bed coal
- Burning of coal in down-draft ceramic kilns and burning characteristics of some Ohio coals
- Carbonizing properties and petrographic composition of Pittsburgh-bed coal from Bureau of Mines Experimental mine, Bruceton, Allegheny County, Pa.
- Analyses of Pennsylvania bituminous coals
- Physical and chemical properties of cokes made or used in Washington
- Allaying dust in bituminous-coal mines with water
- Washability studies of the America and Pratt coal beds at Gorgas, Ala.
- National safety competition of 1938
- Notes on large-scale tests of the explosibility of coal dusts made in the United States and Great Britain
- Ignition of firedamp by explosives
- Recent research by the Bureau of Mines on the ignition of firedamp by explosives
- Methods of rock-dusting American coal mines
- Oxidation of carbon monoxide and hydrogen by bacteria
- Time-study analyses :progress report 2 : quarry haulage
- Hazard of mercury vapor in analytical petroleum laboratories
- Properties of a petroleum-reservoir liquid and its residua with applications of the data to production problems
- Bit gage v. drilling speed
- Mount Weather testing adit :progress report 1
- Correlation of analysis of coal with products of carbonization in externally heated retorts
- A washability study of the Woodstock coal bed at Klondyke mine, West Blocton, Ala.
- Investigation during 1937 of combustibles in manholes in Boston, Mass.
- Bureau of Mines - A.P.I. pressure core barrel :progress report on its design and development
- Annual report of the nonmetals division, fiscal year 1939
- Relative air dustiness during cycle of operations at Mount Weather Testing adit
- Expansion of coal during coking
- Carbonizing properties of a subbituminous coal from Puritan Mine, Dacono, Weld County, Colo.
- Classification chart of typical coals of the United States :showing B.t.u. per pound on the moist, mineral-matter-free basis, plotted against fixed carbon on the dry, mineral-matter-free basis
- Properties of Louisiana crude oils.
- Some signaling systems in metal-mine shafts
- Graphic survey of the lime industry, 1910-38 :changes in the number of companies, plants, and kilns, and in their output and capacity
- Investigation of electrical equipment, safety lamps, and gas detectors for safety
- Mining and milling methods and costs at the Black Hills Tin Co., Tinton, S. Dak.
- Reconnaissance of placer-mining districts in Lemhi County, Idaho
- Formation, collection, and treatment of coal dust in mines
- Saving gold by means of corduroy
- Petroleum refineries, including cracking plants, in the United States, January 1, 1939
- Coal-mine explosions and coal- and metal-mine fires in the United States during the fiscal year ended June 30, 1939
- Some fundamentals of smoke abatement
- Testing and design of respiratory protective devices
- Some asphalts from Oregon Basin (Wyoming) crude oil
- Coal-Mine Accidents in the United States, 1936
- Metal-Mine Accidents in the United States During the Calendar Year 1936
- Static Electricity in Nature and Industry
- Strategic minerals investigations :procedure followed by the Bureau of Mines
- Underground transportation of coal :Progress report 1
- Measurement of pressures on rock pillars in underground mines.
- Shrinkage of coke
- Annual report of the nonmetals division, fiscal year 1940