224 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
WASHING TEST. 
Test 136, West Virginia No. 81. 
Size as shipped, run of mine. Size as used, crushed to 2 inches. Jig used, Stewart modified. 
pounds. . 24, 000 
Raw coal. . . . 
Washed coal. 
Refuse 
.do.... 22,000 
.do.... 2,000 
ANALYSES. 
Test 136. 
Raw coal. 
Washed 
coal. 
3. 57 
36.38 
55. 20 
4.85 
1.32 
6. 35 
Ash 
3. 47 
1 . 00 
COKING TESTS. 
Test Hi, West Virginia No. i 1 . 
Size as shipped, run of mine. Size as used, finely 
crushed. Raw. Duration of test 52 hours. 
Coal charged pounds.. 12,000 
Coke produced do 8, 106 
Breeze produced do 242 
crushed. Duration of test, 44 hours. 
Coal charged pounds. 
Coke produced do. . . 
Breeze produced do.:. 
Coke produced per cent. 
Breeze produced do. . . 
1 2, (XX) 
7,816 
249 
1.5. 13 
2.08 
Coke produced percent.. 67.55 
Breeze produced do 2.02 
Total percentage yield 69. 57 
Remarks.— Fine coke. Light gray and silvery. 
Very heavy. High yield due to deposited carbon. 
Good foundry coke. 
Test 91, West Virginia No. 21, washed. 
Size as shipped, run of mine. Size as used, finely 
Total percentage yield , 67. 21 
Remarks.— Light gray and silvery. High yield 
due to deposited carbon. Breakage very irregu- 
lar, hut pieces Of good foundry size. Somewhat 
brittle. Not so good as coke from raw coal. The 
raw coal and resultant coke are both low in sul- 
phur and ash and washing is of no commercial 
value. 
ANALYSES. 
Test 82. 
Test 91. 
Coal. 
Coke. 
Coal. 
Coke. 
3.55 
36.32 
55. 18 
4.95 
1.23 
0.24 
.81 
91.23 
7.72 
.98 
5.72 
36. 54 
54. 35 
3.39 
1.01 
0.55 
Volatile matter 
1.03 
Fixed carbon 
93. 16 
Ash 
5. 26 
Sulphur 
.76 
WYOMING NO. 2. 
Bituminous coal from Antelope Nos. 1 and 2 and Jumbo mines, Cambria Fuel Company, 
Cambria, Weston County, Wyo., on the Burlington system. 
This sample consisted of run-of-mine coal and was loaded under the supervision of M. R. 
Campbell, of the United States Geological Survey. It is designated as Wyoming No. 2 B 
in the following tests: Steaming tests Nos. 196, 210, and 213, and producer-gas test No. 62.0 
Two mine samples (Nos. 1376 and 1377) were taken at working faces at widely separated 
points in the mine. 
oFor tests of same coal received during 1904 see Bull. U. S. Geol. Survey No. 261, 1905, pp. 83, 115. 
