Search U.S. government technical reports digitized or harvested by TRAIL.
Origin and petrographic composition of the Lower Sunnyside coal of Utah
Preparation of thin sections of 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 Pittsburgh-bed coal from Bureau of Mines Experimental mine, Bruceton, Allegheny County, Pa.