200 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
WASHING TEST. 
Test 127, West Virginia No. 4 15. 
Size as shipped, run of mine. Size as used, crushed to 2 inches. Jig used, Stewart modified. 
Raw coal pounds.. 26, GOC 
Washed coal do 21 , 00C 
Refuse do 5, 600 
ANALYSES. 
Moist lire 
Volatile matter 
Fixed carbon. . 
Ash 
Sulphur 
Test 127. 
Washed 
coal. 
3. 91 
26.68 
59.30 
10.11 
1.07 
'.76 
81 
COKING TESTS. 
Test 40, West Virginia No. I 15. 
Size as shipped, run of mine. Size as used, 
finely crushed. R;i\\ . Duration of test, .">7 hours. 
.pounds.. 10,000 
do... 7,553 
....do... 286 
Coal charged 
Coke produced 
Breeze produced 
Coke prod need per cent. . 75. 53 
Breeze produced do. . . 2. 86 
78. 39 
Total percentage yield 
Remarks.— Light gray and silvery. High yield 
due to deposited carbon. Breakage somewhat 
crosswise, but in good-sized pieces. Very good 
coke. 
Test 14, West Virginia No. I It, washed. 
Size as shipped, run of mine. Size as used, not 
crushed. Duration >f test, 72 hours. 
Coal charged pounds.. 12,000 
Coke produced do. . . 8, 129 
Breeze produced do... 337 
Coke produced per cent. . 67. 74 
Breeze produced do... 2.81 
Total percentage yield 70. 55 
Remarks. Fine coke. Silvery color. Much 
deposited carbon. Heavy, good foundry coke. 
Breakage, practically perfect. Coal not ground. 
These tests would seem to indicate belter coke 
physically from coal not ground, but per cent 
yield is lowr, and the difference in yield would 
seem to warrant grinding. 
Test 4«, AVest Virginia No. 4 15, washed. 
Size as shipped, run of mine. Size as used, 
finely crushed. Duration of test, 74 hours. 
Coal charged pounds. . «.»,760 
Coke produced do 
Breeze produced do 
. L'L'O 
Coke produced percent.. 73.98 
Breeze produced do... 2.75 
Total percentage yield 76. 73 
Remarks.— Fine coke. Heavy, good-sized 
pieces, though breakage is not so good as coke 
from charge not ground. Unfortunate that 
charges were not same size, so as to make bettor 
comparison, but there were only 9,760 pounds of 
coal left. Yield better than coke from coal not 
ground. Washing docs not improve enough to 
warrant this expense. 
ANALYSES. 
Moisture 
Volatile matter 
Fixed carbon. . 
Ash 
Sulphur 
Test 40. 
Test 44. 
Coal. 
4.24 
26.57 
10.30 
.97 
Coke. 
.35 
.68 
86.01 
12.96 
.82 
Coal. 
5.40 
26.83 
59.90 
7.87 
.93 
Coke. 
.00 
1.20 
87.04 
11.16 
.72 
Test 46. 
Coal. 
3.87 
27. 72 
59.67 
8.74 
.87 
Coke. 
.27 
1.37 
86.98 
11.38 
.78 
