bituminous coal exists in great profusion in various parts of the Western Valley.
Produced during the distillation of bituminous coal for gas.
It has not the heating power of bituminous coal, but it is greatly superior to many of the lignitic coals.
They cannot be operated with moderately soft or bituminous coal.
Five feet of wood or plant may produce about one foot of bituminous coal, or six-tenths of a foot of anthracite.
In some instances, as in the coal beds near Richmond, Va., dikes occasionally cut through beds of bituminous coal.
Smoky City, Pittsburg, in Pennsylvania, from the effect produced by the bituminous coal used in the manufactories.
Mr. Holley calculates that it equals about 150 tons of bituminous coal, such as is found in the Pittsburg region.
Its houses, like those of Pittsburg, bore the dingy stain so common to all this bituminous coal region.
There is a locality of bituminous coal on Fox River, about forty miles south.
A soft type of coal that burns with a smoky, yellow flame. Bituminous coal is the most abundant form of coal. It has a high sulfur content, and when burned, gives off sulfurous compounds that contribute to air pollution and acid rain. Compare anthracite, lignite.