Call Number (LC) Title Results
I28.27..7325 Testing Safety Catches on Mine Cages, Lake Superior District. 1
I 28.27:7326 Extractive metallurgy of beryllium /
Extractive Metallurgy of Beryllium. 		2
I28.27..7326 Extractive Metallurgy of Beryllium. 1
I 28.27:7326-7350 Method of handling hydrogen sulfide gas in the Elk Basin oil field of Wyoming / 1
I 28.27:7327 Processes for Making Barium and Its Alloys.
Processes for making barium and its alloys / 		2
I28.27..7327 Processes for Making Barium and Its Alloys. 1
I 28.27:7328 Hazards of the Trolley-Locomotive Haulage System in Coal Mines.
Hazards of the trolley-locomotive haulage system in coal mines / 		2
I28.27..7328 Hazards of the Trolley-Locomotive Haulage System in Coal Mines. 1
I 28.27:7329 Hydrogen Sulfide Poisoningas as a Hazard in the Production of Oil.
Hydrogen sulfide poisoning as a hazard in the production of oil / 		2
I28.27..7329 Hydrogen Sulfide Poisoningas as a Hazard in the Production of Oil. 1
I 28.27:7330 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, 1944 / 		2
I28.27..7330 Coal-Mine Explosions and Coal and Metal-Mine Fires in the United States During the Fiscal Year Ended June 30, 1944. 1
I 28.27:7331 Dust-Counting Cells.
Dust-counting cells / 		2
I28.27..7331 Dust-Counting Cells. 1
I 28.27:7332 Guarding trolley wires in mines /
Guarding Trolley Wines in Mines. 		2
I28.27..7332 Guarding Trolley Wines in Mines. 1
I 28.27:7333 Inspection standards for bituminous-coal and lignite mines : revised July 1945.
Inspection Standards for Bituminous-Coal and Lignite Mine, Revised July 1945. 		2
I28.27..7333 Inspection Standards for Bituminous-Coal and Lignite Mine, Revised July 1945. 1
I 28.27:7334 Method of Handling Hydrogen Sulfide Gas in the Elk Basin Oil Field in Wyoming.
Method of handling hydrogen sulfide gas in the Elk Basin oil field of Wyoming / 		2
I28.27..7334 Method of Handling Hydrogen Sulfide Gas in the Elk Basin Oil Field in Wyoming. 1