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Metal-mine accidents in the United States during the calendar year 1913

Production of explosives in the United States during the calendar year 1915 :with notes on coal-mine accidents due to explosives and a list of permissible explosives, lamps and motors tested prior to May 1, 1916

Metal-mine accidents in the United States :during the calendar year 1915

Metal-mine accidents in the United States :during the calendar year 1916

Production of explosives in the United States during the calendar year 1917 :with notes on coal-mine accidents due to explosives and a list of permissible explosives tested to April 30, 1918

Metal-mine accidents in the United States during the calendar year 1917 :(with supplemental labor and accident tables for the years 1911 to 1917, inclusive)

Production of explosives in the United States during the calendar year 1918 :with notes on coal-mine accidents due to explosives and a list of permissible explosives tested to March 31, 1919

Metal-mine accidents in the United States during the calendar year 1918


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