Cleveland Paper - Stone-Coal in the Lead Blast-Furnace

Bituminous coal has for many years been used for the smelting of iron-ores in the blast-furnace. In some districts in Scotland it is used alone, in others it is used mixed with coke. The similar use of certain bituminous coals in the United States has been repeatedly mentioned in the Transactions. (See, for instance, as to the Hocking Valley coal, the papers of Dr. T. Sterry Hunt, Trans., ii., 275, and vii., 313; and as to Indiana "block-coal," the paper of Mr. J. S. Alexander, Trans., i., 225.) Phillips (Elements of Metallurgy, p. 250) says: " Raw coal for blast-furnace use must be of a non-cokiog kind, and, when of suitable quality, is perhaps the most advantageous fuel." In the first