88 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
COKING TESTS. 
Test 7, Illinois No. 10. 
Size as shipped, lump and egg. Size as used, 
finely crushed. Raw. Duration of test,— hours. 
Remarks.— Accident to charging larry necessi- 
tated discontinuing test. Coal burned to keep 
oven hot. 
Test 10, Illinois No. 10, washed. 
Size as shipped, lump and egg. Size as used, 
finely crushed. Duration of test, 66 hours. 
Coal charged pounds. . 10, 000 
Coke produced do 5,579 
Breeze produced • do 910 
Coke produced per cent. . 55. 79 
Breeze produced do 9. 10 
Total percentage yield 64. 89 
Remarks.— Dull-gray color. Poor coke physic- 
ally. 
ANALYSES. 
Test 10. 
Coal. 
Coke. 
9.79 
30.35 
51. 79 
8.07 
1.09 
2.14 
1.46 
83. 96 
Ash 
12.44 
1.02 
ILLINOIS NO. 18. a 
Bituminous coal from La Salle shaft mine, La Salle County Carbon Cor 1 Company, La 
Salle, La Salle County, 111., on the Illinois Central Railroad. 
The sample shipped for testing consisted of lump coal passed over a 6-inch mesh screen. 
It was loaded under the supervision of Inspector J. S. Burrows, and used for the following 
tests: Washing test No. 109, steaming tests Nos. 140 and 148, steaming tests on washed 
coal Nos. 147 and 149, and producer-gas test No. 45. 
Two mine samples were taken for chemical analysis, as follows: No. 1741 was cut in the 
twelfth west entry off the north entry; No. 1742 was cut in the third east ent.y off the 
third south entry, 4,000 feet from the shaft and 8,000 feet from No. 1741. 
CHEMICAL ANALYSES. 
Laboratory number. 
Air-drying loss 
q3 fMoisture. 
| Volatile matter. 
I Fixed carbon. .. 
[Ash 
(Sulphur 
£ Hydrogen 
&< Carbon 
•r Nitrogen 
Oxygen 
Calorific value determined: 
Calories 
British thermal units. 
Mine samples. 
1741 
11.00 
13.87 
37. 26 
38.56 
10. 31 
3. 44 
6, 103 
10,985 
1742 
11.20 
15. 55 
36. 21 
40. 66 
7.58 
3. 01 
Car 
sample. 
1779 
S. 40 
12.39 
36. 89 
41.80 
8.92 
3. 92 
5. 89 
61.29 
1.00 
19.0a 
6,33^ 
1 1 , 399 
a Sample furnished l>y Illinois Central Railroad. 
