TESTS OHIO. 
147 
WASHING TEST. 
Test 122, Ohio No. li. 
Size as shipped, run of mine. Size as used, crushed to 2 inches. Jig used, Stewart modified. 
Raw coal pounds.. 47,125 
Washed coal do 34, 800. 
Refuse do .... 12, 325 
ANALYSES. 
Test 122. 
Raw coal. 
Washed 
coal. 
9.90 
33. 66 
44.86 
11.58 
1.81 
9.96 
Vsh 
7.74 
Sulphur 
1.36 
COKING TEST. 
Test 31, Ohio No. A, washed. 
Size as shipped, run of mine. Size as used, finely crushed. Duration of test, 60 hours. 
Remarks.— No coke produced. 
OHIO NO. 4. 
Bituminous coal from Crow Hollow mine, United States Coal Company, Bradley, Jeffer- 
son County, Ohio, on the Baltimore and Ohio Railroad. 
This sample consisted of "three-fourths inch coal," having been passed over a three- 
fourths inch bar screen, and was shipped under the supervision of Inspector J. W. Groves, 
rhe following tests were made on it: Washing test No. 125, coking test No. 28, steaming 
tests Nos. 188, 201, and 202, steaming tests on washed coal Nos. 219, 220, and 221, and 
producer-gas test No. 60. 
Two mine samples were taken for chemical analysis, as follows: No. 1910 from room 9 
off the fourth left entry in district No. 9, 3,000 feet northwest of the tipple; No. 1911 from 
room 17 off main entry No. 2 in district No. 2. 
CHEMICAL ANALYSES. 
Mine samples 
Car 
samples. 
1910 
1.70 
4.06 
38.49 
49.70 
7.75 
3. 67 
1911 
2.00 
4.20 
37. 16 
51.13 
7.51 
3.22 
2083 
1.40 
2 Moisture 
3.53 
37.45 
49. 90 
l [Ash 
9.12 
1 Sulphur 
3.47 
5.15 
th Carbon. 
71.66 
1.31 
Oxygen 
9. 29 
Calorific value determined: 
7,304 
13,147 
7,262 
13,072 
