31. The existing bituminous roof will be removed and replaced. 32. As the 1920s unfolded, the bituminous and anthracite coal industries quickly collapsed. 33. The formation consists of bituminous coal fields that are an important economic resource. 34. It described the field as having two 5, 000'bituminous runways. 35. The surface is bituminous paving topped with colored sealer. 36. Leitch Manufacturing Company also made and sold bituminous emulsion. 37. The usual coal deposits of the area of bituminous or semi-bituminous coal. 38. The usual coal deposits of the area of bituminous or semi-bituminous coal. 39. Energy needs are also met by importing bituminous and anthracite coal and crude petroleum. 40. The communities and the surrounding areas are the former homes of bituminous coal mines.
