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Determination of nitrogen in coal.A comparison of various modifications of the Kjeldahl method with the Dumas method
Comparison of small and large scale experimental carbonizing apparatus :Tests of Pittsburgh Bed coal from Allison mine, Fayette county, Pa., and of a coal from the Michel Mine, British Columbia
Carbonizing properties and petrographic composition of Pittsburgh bed coal from Pittsburgh terminal no. 9 mine, Washington County, Pa.
Carbonizing properties and petrographic composition of Millers Creek bed coal from Consolidation no. 155 mine, Johnson County, Ky., and the effect of blending Millers Creek coal with Pocahontas bed and Pittsburgh bed (Warden mine) coals
Carbonizing properties and petrographic composition of Upper Banner bed coal from Clinchfield no. 9 mine, Dickenson County, Va., and of Indiana no. 4-bed coal from Saxton no. 1 mine, Vigo County, Ind. :and the effect of blending these coals with Beckley bed coal
Carbonizing properties and petrographic composition of Pond Creek bed coal from Majestic mine, Majestic, Pike County, Ky.
Carbonizing properties and petrographic composition of High Splint bed coal from Closplint mine, Closplint, Harlan County, Ky.
Carbonizing properties and petrographic composition of washed and unwashed Lower and Upper Kittanning-bed coals from mines 72 and 73, Johnstown, Cambria County, Pa.
Carbonizing properties and petrographic composition of Sewell bed coal from Wyoming Mine, Wyoming County, W. Va., and the effect of blending this coal with Alma bed coal
Carbonizing properties and petrographic composition of Pittsburgh-bed coal from Bureau of Mines Experimental mine, Bruceton, Allegheny County, Pa.
Carbonizing properties and petrographic composition of Pocahontas no. 3-bed coal from Buckeye no. 3 mine, Wyoming County, W. Va., and of Pocahontas no. 4-bed coal from no. 4 mine, Raleigh County, W. Va.
Carbonizing properties and petrographic composition of Lower Banner-bed coal from Keen Mountain mine, Buchanan County, Va. :and the effect of blending this coal with Pittsburgh-bed (Warden Mine) coal
Carbonizing properties and petrographic composition of Upper Freeport coal from Morgantown District, Monongalia County, W. Va. :and of Lower Freeport coal from eastern Indiana County, near Cambria County, Pa.