00862cam a22002531i 4500 gs 09000433 DLC 20260227111309.0 790410s1909 dcua f000 0 eng gs 09000433 (OCoLC)4839566 DLC OkAdE DLC premarc QE75 .B9 no. 412 Ray, Walter T. Tests of run-of-mine and briquetted coal in a locomotive boiler / by Walter T. Ray and Henry Kreisinger. Washington : Government Printing Office, 1909. 32 p. : ill. ; 23 cm. United States. Geological Survey. Bulletin ; 412 "Survey publications on fuel testing and briquetting" : p. 31-32. Coal Testing. Briquets (Fuel) Kreisinger, Henry, 1876-1946, joint author. 24872 24872