Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
10066 results returnedSearch results
- Coal-dust explosibility factors indicated by experimental mine investigations 1911 to 1929
- Depth attainable by electrical methods in applied geophysics
- Effect of manganese on distribution of carbon in steel
- Safety at natural-gasoline plants
- Smelting in the lead blast furnace :IV. composition and temperature of the gases at the Tuye©Łre Zone
- Smelting in the lead blast furnace :V. effect of conditions at various Tuye©Łres on the form of lead and composition of the slag
- Leaching silver in unroasted tailings with ferric salts in saturated brine
- Mica.
- Electrical motored equipment :approvals and extensions
- Electrical accident prevention
- The National Safety Competition to assist in the reduction of mine and quarry accidents
- Mining laws of China
- What do we know about the explosibility of coal dust in mines?
- Fusain
- Activities of the Holmes Safety Association in Florida
- Survey of cracking plants, January 1, 1929
- Sampling dust in of rock-dusted mines
- The unusually good safety record of a coal mine and of a coal-mine foreman
- Mining laws of Columbia
- Safeguarding electrical equipment used in gassy mines :European practice.
- Work of the Holmes Safety Association in the state of Washington
- Recommendation for safety in coal mining relating to placing mine haulage in intake air
- Mining laws of Bolivia
- Selected bibliography of minerals and their identification
- Clay
- Explosions and other accidents from mudcapped shots in coal mines
- Effect of a bonus on the accident record of the Southwestern Portland Cement Co.
- Colorado mine fatalities
- Notes on precautions to be taken when drilling oil or gas wells through workable coal beds or through mine workings
- Physiological factors of mine ventilation
- Mining laws of Portugal
- Mining laws of Portuguese Possessions
- Petroleum refineries in the United States, January 1, 1929
- Design and operation of gas-well siphons
- Accidents at metallurgical works in the United States :during the calendar year 1927
- Classification and tabling of difficult ores :with particular attention to fluorspar
- Factors governing removal of soluble copper from leached ores
- Coke-oven accidents in the United States :during the calendar year 1927
- Geophysical investigations at Caribou, Colo.
- Roasting of lead-carbonate ores preliminary to gravity concentration
- Falls of roof in bituminous coal mines :influence of the seasons and rate of production
- The blast-furnace stock column
- Specific heats of gases at high temperatures
- A study of the crude oil produced in the Salt Creek field, Wyoming
- Inflammability of mixed gases
- Calcium sulphate retarders for Portland cement clinker
- Safety organizations in Arizona copper mines
- Permissible junction boxes
- Analyses of Kansas coals / [by the U.S. Bureau of Mines].
- Metal-Mine Accidents in the United States During the Calendar Year 1927
