Of cannel coal Kentucky is the largest producer in the Union, its output for 1902 being 65,317 short tons, and, according to state reports, for 1903, 72,856 tons (of which 46,314 tons were from Morgan county), and for 1904, 68,400 tons (of which 52,492 tons were from Morgan county); according to the Mineral Resources of the United States for 1907 (published by the United States Geological Survey) the production of Kentucky in 1907 of cannel coal (including 4650 tons of semi-cannel coal) was 77,733 tons, and exclusive of semi-cannel coal the output of Kentucky was much larger than that of any other state.
Formerly cannel coal was used for Enrich- producing a very rich gas which could be mixed with the meat.
The seams are principally above water levels and in many cases have been laid bare by erosion; and the supply is varied - besides a " fat coking, gassy bituminous," there are an excellent grade of splint coal (first mined in 1864 at Coalburg, Kanawha county) and (except that in Kentucky) the only important supply of cannel coal in the United States.
