Use of a Sodium Silicate Gel Grout for Plugging Horizontal Methane Drainage Holes

Geology of the Mary Lee Group of Coalbeds, Black Warrior Coal Basin, Alabama

Recovery of Mercury from Cinnabar Ores by Electrooxidation: Extraction Plant Amenability Tests, Issues 8081-8100

Direct Method Determination of the Gas Content of Coal: Procedures and Results, Issues 8501-8520