26 
THE PURCHASE OF COAL UNDER SPECIFICATIONS. 
Analyses of anthracite buckwheat coal delivered during 1906-7 to a Government 
building in Washington, D. C. a 
Dec. 18. 
Jan. 15. 
Jan. 16. 
Jan. 22. 
Jan. 23. 
Jan. 28. 
Jan. 31. 
Feb. 4. 
Dry coal: 
Volatile matter. 
Fixed carbon. _. 
Ash 
2.50 
80.34 
17.16 
1.93 
82.40 
15.67 
2.21 
80.94 
16.85 
2.49 
80.72 
16.79 
2.41 
76.32 
21.27 
1.98 
79.38 
18.64 
3.23 
78.61 
18.16 
2.89 
80.57 
16.54 
100.00 
100.00 
100. 00 
100.00 
100. 00 
100.00 
100.00 
100.00 
Sulphur 6 
B. t. u 
Coal as received: 
Moisture 
B. t. u 
.63 
12,245 
4.79 
11,659 
.73 
12,475 
5.59 
11,776 
.68 
12,314 
4.47 
11,763 
.67 
12,370 
4.93 
11,755 
.67 
11,574 
5.32 
10,959 
.67 
11,970 
4.3S 
11,445 
.67 
11,843 
5.13 
11,236 
.60 
12,265 
4.69 
11,681 
Feb. 7. 
Feb. 12. 
Feb. 15. 
Mar. 2. 
Mar. 20. 
Apr. 3. 
Apr. 13. 
Average 
Dry coal: 
Volatile matter. .. 
Fixed carbon 
Ash 
1.78 
76.91 
21.31 
2.66 
80.03 
17.31 
2.59 
79.34 
18.07 
2.07 
76.90 
21.03 
2.87 
81.56 
15.57 
2.11 
79.52 
18.37 
2.62 
79.36 
18.02 
2.42 
79.53 
18.05 
100.00 
100.00 
100.00 
100. W 
100.00' 
100. 00 
100.00 
100.00 
Sulphur 6 
.67 
11,635 
5.51 
10,993 
.70 
12,350 
5.36 
11,609 
12,098 
5.57 
11,016 
.70 
11,749 
6.10 
11,032 
.62 
12,545 
4.60 
11,968 
.77 
12,109 
4.31 
11,587 
.69 
12,071 
5.64 
11,390 
.68 
B. t. u 
12,107 
Coal as received: 
5.09 
B. t. u 
11,485 
a Contract for 5,000 tons. Payment not based on chemical analysis. 
6 Separately determined. 
Analyses of bituminous coal delivered during 1906-7 to a Government building 
in Washington, D. C, as being run-of-mine from Georges CreeTc. 
Dec. 27. 
Jan. 3. 
Jan. 22. 
Jan. 23. 
Jan. 30. 
Feb. 6. 
Dry coal: 
16.84 
73.01 
10.15 
16.24 
75.07 
8.69' 
17.26 
75.27 
7.47 
17.03 
76.23 
6.74 
16.43 
75.11 
8.46 
16.66 
75.57 
Ash 
7.77 
100.00 
100.00 
100.00 
100.00 
100.00 
100.00 
Sulphur" 
1.02 
14,017 
4.80 
13,343 
.93 
14,364 
2.77 
13,966 
1.03 
14,636 
3.43 
14,134 
1.08 
14,764 
4.22 
14,141 
.80 
14,441 
3.09 
13,995 
.94 
B. t. u 
14,586 
Coal as received: 
Moisture . 
3.73 
B. t. u ._ 
14.040 
Feb. 9. 
Feb. 15. 
Mar. 28. 
Feb. 21. 
Apr. 15. 
Dry coal: 
Volatile matter 
16.21 
74.99 
8.80 
15.77 
75.12 
9.11 
16.29 
74.55 
9.16 
16.42 
74.79 
8.79 
15 76 
Fixed carbon 
76 89 
Ash 
7.35 
100.00 
100.00 
100.00 
100.00 
100.00 
Sulphur 
B. t. u . 
.95 
14,317 
4.07 
13,734 
.99 
14,308 
3.12 
13,862 
1.03 
14,26-4 
3.15 
13,815 
.95 
14,352 
2.94 
13,930 
.95 
14,632 
2.97 
14,197 
Coal as received: 
Moisture 
B. t. u 
"Separately determined. 
