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  Photographs

  Emptying slag ladle on No. 2 experimental blast furnace

  • 1932-Oct-12

  General view of a worker emptying the slag ladle on the No. 2 experimental blast furnace on a burden (a load, especially a heavy one) of phosphate at the U.S. Department of Agriculture's Fixed Nitrogen Research…

  • Subject Nitrogen fertilizer industry, Blast furnaces, United States. Bureau of Chemistry and Soils, Slag, Phosphatic slag, Slag as fertilizer, Furnaces, United States. Department of Agriculture
• 
  Photographs

  Opening cinder-notch on No. 2 experimental blast furnace

  • 1932-Oct-12

  General view of workers opening the cinder-notch on the No. 2 experimental blast furnace on a burden (a load, especially a heavy one) of phosphate at the U.S. Department of Agriculture's Fixed Nitrogen Research…

  • Subject Employees, Blast furnaces, Nitrogen--Fixation, United States. Bureau of Chemistry and Soils, Slag, Furnaces, United States. Department of Agriculture, Nitrogen fertilizer industry