Scope and Contents Longwall Method Applicable to Thick Wolf Creek Seam: Qty-1, Form-V "Steep Pitch Mining Concepts," 10-76: Qty-1, Form-P "A Proposed Method of Mining Very Steep Pitch Coal Beds," 11-75: Qty-7, Form-P "A Hydraulic Mine Concept for Steep Pitching Seams," 10-80: Qty-1, Form-F copy of "A Hydraulic Mine Concept for Steep Pitching Seams": Qty-1,...