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• Carbonizing properties of no. 5 block-bed coal from no. 5 mine, Montcoal, Raleigh County, W. Va.,and of Pocahontas no. 6-bed coal from Birdseye mine, Sewell, Fayette County, W. Va.
• Preparation characteristics of coal from Nicholas County, W. Va.
• Removing methane (degasification) from the Pittsburgh coalbed in northern West Virginia
• Longwall mining with a German coal planer :Pocahontas No. 3 coalbed, Keystone, W. Va.
• Preparation characteristics of coal from Kanawha County, W. Va.
• Preparation characteristics of coal from Hancock, Brooke, Ohio, and Marshall counties, W. Va.
• Preparation characteristics of coal from Fayette County, W. Va.
• Carbonizing properties of coals from Fayette and Greenbrier counties, W. Va.
• Preparation characteristics of coal from Clay, Gilmer, and Lewis counties, W. Va.
• Carbonizing properties of coals from Nicholas, Randolph, and Webster counties, W. Va.