00893cam a22002531i 4500 gs 09000244 DLC 20260227111309.0 790419s1909 dcua f001 0 eng gs 09000244 (OCoLC)4874911 DLC ICharE DLC premarc TN305 .C5 Chamberlin, Rollin Thomas. Notes on explosive mine gases and dusts, with special reference to explosions in the Monongah, Darr, and Naomi coal mines / by Rollin Thomas Chamberlin. Washington, Govt. Print. Off., 1909. 67 p. : diagr. ; 24 cm. U.S. Geological survey. Bulletin 383 Issued also as House doc. no. 1538, 60th Cong., 2d sess. Includes index. Mine explosions. United States. Geological Survey. Bulletin ; 383. 24836 24836