TESTS PENNSYLVANIA, 
183 
COKING TESTS. 
Test 37, Pennsylvania No. 9. 
Size as shipped, run of mine. Size as used, 
finely crushed. Raw. Duration of test, 45 hours. 
Coal charged pounds.. 7,000 
Coke produced, few pieces. 
Remarks.— Few pieces of dull coke obtained, 
and analysis was made from these. The amount 
was too small to calculate as percentage yield of 
coke. 
Test 39, Pennsylvania No. 9. 
Size as shipped, run of mine. Size as used, 
.finely crushed. Raw. Duration of test, 66 hours. 
Coal charged pounds. . 8,000 
Coke produced, few pieces. 
Remarks.— This was the second test on this coal 
and a few pieces were obtained. Result war- 
ranted another trial after washing. 
Test 42, Pennsylvania No. 9, washed. 
Size as shipped, run of mine. Size as used, 
finely crushed. Duration of test, 51 hours. 
Coal charged pounds. . 8,000 
Coke produced do 5,600 
Breeze produced do 801 
Coke produced per cent. . 70. 00 
Breeze produced do- 10.01 
Total percentage yield 80. 01 
Remarks.— This was the third trial on this coal. 
The other two charges were raw, and succeeded 
in getting only a few pieces of coke. Washing re- 
duced sulphur and ash. Coke was dull-gray in 
color. Breaks badly into small pieces, and breeze 
content very large. 
Test 56, Pennsylvania No. 9. 
Size as shipped, run of mine. Size as used, 
finely crushed. Raw, with 5 per cent pitch. Du- 
ration of test, 38 hours. 
Coal charged pounds . 
Coke produced do . . . 
Breeze produced do... 
Coke produced per cent. 
Breeze produced do. . . 
Total percentage yield 72. 44 
Remarks.— Dull-gray color. Poor soft coke. 
Quality not so good as coke from washed coal. 
Ash and sulphur higher. 
ANALYSES. 
Test 37. 
Test 39. 
Test 42. 
Test 56. 
Coal. 
Coke. 
Ccal. 
Coal. 
Coke. 
Coal. 
Coke. 
3.26 
16.18 
69.44 
11.12 
1.90 
0.70 
1.05 
84.92 
13.33 
1.53 
2.86 
16.24 
68.60 
12.30 
2.14 
4.55 
17.59 
68.80 
9.06 
1.39 
0. 54 
1.21 
86.84 
11.41 
1.06 
2.60 
17.92 
69.36 
10.12 
1.80 
0.72 
Volatile matter 
.61 
86.02 
\sh 
12.65 
1.53 
PENNSYLVANIA NO. 10. 
Bituminous coal from Bertha mine, Pittsburg-Buffalo Coal Company, Bruce, Allegheny 
bounty, Pa., on the Baltimore and Ohio Railroad. 
This sample consisted of "three-fourths inch coal." It was loaded under the super- 
ision of Inspector W. J. Von Borries,and was used in making coking tests Nos. 47 and 53, 
teaming tests Nos. 227, 228, and 229, and producer-gas test No. 71. 
Two mine samples were taken for chemical analysis, as follows: No. 2080 from No 1 
ace entry off No. 1 butt entry, 5,000 feet from the drift mouth, and No. 2081 from the third 
5 entry, 300 feet from the drift mouth. 
