WORK OF CHEMICAL LABORATORY. 
51 
Analyses of mine and laboratory car samples of coal — Continued. 
North 
Dakota 
No. 1. 
Laboratory 
car sample. 
aboratory sample No 
,oss of moisture on air-drying 
Analysis of air-dried sample. 
Moisture 
Volatile matter 
Fixed carbon 
r Ash 
(Sulphur 
Hydrogen 
Carbon 
Nitrogen 
Oxygen 
alorific value determined: 
Calories 
British thermal units 
alorific value calculated from ultimate 
analysis: 
Calories 
British thermal units 
Analysis corrected to sample as received. 
Moisture 
Volatile matter 
Fixed carbon 1 
rAsh 
(Sulphur 
Hydrogen 
Carbon 
Nitrogen 
Oxygen 
ilorific value determined: 
Calories 
British thermal units 
ilorific value calculated from ultimate 
analysis: 
Calories 
British thermal units 
23. 60 
L5. 12 
38.73 
33.61 
12. 24 
2.02 
5.22 
52.66 
0.71 
27.15 
5,034 
9.061 
4, 931 
8,876 
35.38 
29.59 
25.68 
9.35 
1.55 
6.61 
40.23 
0.54 
41.72 
3,846 
6,923 
3, 769 
6, 784 
North 
Dakota 
No. 2. 
Laboratory 
car sample. 
1416 
24. 10 
16.70 
37.10 
39.49 
6.71 
0.63 
5.61 
55. 16 
0.91 
30. 98 
5, 273 
9,491 
5,071 
9, 128 
36.78 
28.16 
29.97 
5.09 
0.48 
6.93 
41.87 
0.69 
44.94 
4,002 
7,201 
3,849 
6, 928 
Pennsyl- 
vania 
No.l. 
Steam 
sample. 
Pennsyl- 
vania 
No. 2. 
Pennsyl- 
vania 
No. 3. 
Steam 
sample. 
Laboratory 
car sample. 
1.10 
15. 80 
75.69 
7.41 
1.49 
0. 59 
16.61 
76. 76 
6.04 
0.91 
1245 
2.08 
7.27 
74. 32 
16.83 
0.77 
2. HI 
75. 21 
0.80 
4.08 
6, 929 
12, 472 
6,886 
12, 395 
5. 11 
7.02 
71.79 
15. 7* 
0.74 
3.10 
72. 65 
0.77 
6. 96 
6,693 
12,017 
6,652 
11,974 
