34 EXPERIMENTAL WORK IN FUEL TESTING. 
Determinations of ash and sulphur in coal samples variously treated — Continued. 
PENNSYLVANIA NO. 10. 
[Unwashed coal (boiler-teat sample, No. 2373)— ash, 6.37; sulphur, 1.35.] 
Portion. 
Ash. 
Sulphur. 
Compared with 
original sample. 
Ash. Sulphur. 
^ inch to ^o inch 
87.0 
78.5 
5.6 
1.9 
4.50 
13. 15 
62. 70 
1.07 
1.84 
8.70 
3.53 
.75 
1.19 
0.85 
1.35 to 1. 65 
.10 
.17 
12.7 
7.6 
5.0 
.48 
.48 
.11 
Remainder 
9.49 
2.27 
.11 
6.43 
1.34 
TENNESSEE NO. 6. 
[Unwashed coal (boiler-test sample, No. 3102)— ash, 14.86; sulphur, 0.S0.] 
93.8 
71.5 
7.7 
14.0 
Lighter than 1.35 
3.42 
20.64 
70.99 
0.67 
1.18 
2.74 
2. 45 
1.59 
9.94 
0.47 
1.35 to 1.65 
.09 
Heavier than 1 .65 
.38 
- € \j inch and finer 
5.9 
2.7 
3.3 
Very fine, decanted « 
.40 
.75 
.02 
Remainder 
22. 75 
1.08 
.04 
15.13 
1.00 
VIRGINIA NO. 4. 
[Unwashed coal (boiler-test sample, No. 2533) — ash, 4.02; sulphur, 0.45.] 
{ inch to j 1 ^ inch 
92.8 
88.3 
1.3 
2.6 
Lighter than 1 35 
1.93 
15. 91 
72.22 
0.48 
.95 
.92 
1.70 
.20 
1.877 
41 
1 35 to 1 65 
01 
.02 
j'o inch and finer 
6.8 
4.6 
2.3 
Very fine, decanted a 
.18 
.24 
.02 
Remainder 
10. 24 
.77 
.02 
4.19 
.48 
VIRGINIA NO. 2. 
[Unwashed coal (boiler-test sample, No. 2557) — ash, 6.58: sulphur, 0.83.] 
82.6 
71.2 
9.0 
1.3 
Lighter than 1.35 
1.35lol.65 
2 74 
16.57 
60.02 
0.69 
1.35 
9.65 
1.95 
1.49 
.78 
0.49 
.12 
Heavier than 1.65 
.13 
2*0 inch and finer 
17.1 
12. 6 
4.6 
Very fine, decanted a 
.82 
.57 
.10 
Remainder 
12.33 
4.15 
4.02 
4.55 
1.23 
.92 
.95 
.86 
.06 
Washed at lj-inch size: 
Sample No. 1 
5.61 
.90 
No. 2 
No. 3 
a Estimated from results on unwashed coal. 
