82 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
WASHING TEST. 
Test 105, Illinois No. 14. 
Size as shipped, lump. Size as used, crushed to 2 inches. Jig used, Stewart modified. 
Raw coal pounds . . 18,000 
Washed coal do 15,955 
Refuse do 2,045 
ANALYSES. 
Test 105. 
Raw coal. 
Washed 
coal. 
12.77 
34. 68 
40.77 
11.78 
4.16 
16.33 
Ash 
9.37 
3.29 
ILLINOIS NO. 15. « 
Bituminous coal from south mine of Pettinger & Davis, Centralia, Marion County, 111., 
on the Illinois Central Railroad. 
This sample was shipped as lump coal (over 6-inch screen), hut it was necessary to 
close one-half of the screen while the ear was being loaded, and consequently a large amount 
of the smaller sizes of coal, which should have gone through the screen, passed into the ear. 
The sample was inspected by Inspector J. S. Burrows and was used in making the following 
tests: Washing test No. 110, steaming test No. 126, steaming test on washed coal No. 
152, and producer-gas test No. 40. 
One of the mine samples taken in this mine (No. 1725) came from the sixteenth east 
entry, 3,000 feet southeast of the shaft, and the other (No. 1726) was cut from the four- 
teenth south entry, 4,500 feet southwest of the shaft. 
CHEMICAL ANALYSES. 
* 
Mine samples. 
Car 
sample. 
Ai 
boratory number 
1725 
7.20 
10.25 
37.43 
39.79 
12. 53 
3.70 
1726 
7.80 
11.88 
35.84 
43. 45 
8.83 
3.25 
1761 
r-drving loss 
4 20 
o5 
[Moisture 
9.95 
1 
Volatile matter 
34. 76 
Fixed carbon , 
42. 06 
hi 
[Ash 
13 23 
N Sulphur 
3 87 
q3 
Ilvdrogen 
5.25 
Carbon 
59. 64 
Nitrogen 
1.04 
i-> 
Oxvgen 
1 6. 97 
Ca 
lorific value determined: 
Calories 
6,154 
11,077 
6,089 
10,960 
British thermal units 
a Sample furnished by the Illinois Central Railroad. 
