126 PRELIMINARY REPORT ON COAL-TESTING PLANT, [bull. 261. 
sulphur (6.15 per cent) for use in an iron furnace, but it may be used 
in lead and zinc smelters, for which purpose a high percentage of 
sulphur is not detrimental. 
Kentucky No. 1. — Run-of-mine coal from Straight Creek mine No. 
2 of the National Coal and Iron Company, Straight Creek, Kentucky. 
This test was made on 10,000 pounds of unwashed coal burned for 
66 hours. It produced 5,441 pounds of hard coke, which was finej 
lingered and easily broken into small pieces. The breeze and ashi 
weighed 355 pounds. 
Kentucky No. 3. — Run-of-mine coal from Barnsley mine of St. Ber- 
nard Mining Company, Earlington, Ky. 
In this test the charge consisted of 10,000 pounds of washed coaj 
(p. 70), burned for 66 hours. It produced a coke of fair quality, of 
good color and ring, but somewhat high in sulphur. It produced 
5,433 pounds of coke and 426 pounds of breeze and ash. 
Kentucky No. 4. — Run-of-mine coal from Wheatcroft Coal and 
Mining Company, Wheatcroft, Ky. 
This test was also made on 10,000 pounds washed coal (p. To), 
which was burned for 6Q hours, and yielded 5,558 pounds of coke and 
313 pounds of breeze and ash. The coke was of good color and ring, 
but like Kentucky No. 4, was too high in sulphur for blast-furnace 
use. 
Missouri No. 2, — Run-of-mine coal from mine No. 8 of the North-i 
western Coal and Mining Company, Bevier, Mo. 
This charge consisted of 12,000 pounds washed coal (p. 70), whicl 
was coked for 87 hours. It yielded 5,040 pounds of long- tinge rec* 
brittle coke, having large pieces of slate mixed through it. The breez< 
and ash amounted to 580 pounds. The coke is high in both sulphuj 
and ash. 
Missouri No. 3. —Slack coal from Mendota Coal and Mining Cora I 
pany, Mendota, Mo. 
This coal showed no tendency whatsoever to coke, although it was 1 
washed (p. 65) and burned for 42 hours. 
Missouri No. 4- — Run-of-mine coal from Morgan County Coal Con I 
pany, near Barnett, Mo. 
This coal produced a coke of fair grade, of a gray color, and of if 
good metallic ring. The charge was 11,000 pounds of unwashed coa Jj 
and yielded 4,905 pounds of coke and 128 pounds of breeze and as) j! 
The coke, however, is too high in sulphur for blast-furnace use, but 1 
is believed that the qualit}^ of this coke could be improved by washir [If 
the coal before charging into the ovens. 
West Virginia No. 1. — Run-of-mine coal, Virginia and Pittsbu {J 
Coal Company, Kingmount, W. Va. 
This test was made on 9,000 pounds of unwashed coal. The char, 
was burned for 64 hours and yielded 5,572 pounds of coke and 2 
